WO2023029085A1 - Flexible conductive board and manufacturing method therefor, and stimulating electrode and manufacturing method therefor - Google Patents

Abstract

The present application provides a flexible conductive board and a manufacturing method therefor, and a stimulating electrode and a manufacturing method therefor. The flexible conductive board is divided, along the length direction, into a stimulating section, a connecting section, and a middle section located between the stimulating section and the connecting section. The flexible conductive board comprises a flexible substrate; a plurality of first conductive layers, a plurality of second conductive layers and a plurality of third conductive layers, the first conductive layers being arranged on the flexible substrate and located on the stimulating section, the second conductive layers being arranged on the flexible substrate and located on the middle section, the third conductive layers being arranged on the flexible substrate and located on the connecting section, and each of the second conductive layers being electrically connected to at least one first conductive layer and at least one third conductive layer; and an insulating layer arranged on the flexible substrate and covering the first conductive layers, the second conductive layers and the third conductive layers. The present application is relatively rich and flexible in circuit arrangement mode, and is wide in application range.

Description

Flexible conductive soft board and its manufacturing method, stimulating electrode and its manufacturing method technical field

The present application relates to the technical field of stimulating electrodes, in particular to a flexible conductive soft board and a manufacturing method thereof, a stimulating electrode and a manufacturing method thereof.

Background technique

Stimulation electrodes are implanted in the human body to provide electrical stimulation to the patient. In the prior art, a stimulating electrode adopts a segmented annular stimulating ring. When the patient is electrically stimulated, the stimulating signal will be sent around 360 degrees, and the nerve nuclei that need to be stimulated cannot be accurately found, which may cause unnecessary stimulation. Unnecessary electrical stimulation to the diseased area leads to excessive treatment of brain areas not related to treatment, which may further cause other unpredictable symptoms, such as sluggishness of movement, unsmooth speech, and degeneration of swallowing function.

Another existing stimulating electrode includes a stimulating end, a connecting end, and an intermediate conduction line part between the stimulating end and the connecting end, wherein the stimulating end and the connecting end are provided with ring-shaped segmented contacts, and the intermediate conduction The line part is provided with a helical metal guide wire, the contact at the stimulation end is connected to the metal guide wire in the middle conduction line by welding, and the contact at the connection end is connected to the metal guide wire in the middle conduction line by welding stand up.

The manufacturing cost of the connection method between the contacts of the stimulating electrodes and the metal guide wire is relatively high, and the manufacturing process is relatively complicated, and when more stimulating contacts need to be provided, more metal guide wires for conducting connection need to be provided at this time. Wire, the above-mentioned method is limited by the micro-diameter of the stimulating electrode and the size requirements of the metal guide wire, it is difficult or impossible to realize the arrangement of more stimulating contacts (such as 18 stimulating contacts, 24 stimulating contacts), limiting It improves the doctor's identification of disease sites and more theoretical research on stimulating contact sites and the flexibility of treatment.

Contents of the invention

The purpose of this application is to provide a flexible conductive soft board and its manufacturing method, a stimulating electrode and its manufacturing method, to solve the problem that the diameter of the existing stimulating electrode limits the number of contacts, and to simplify the contacts of the stimulating end and the connection of the connecting end. The connection between the contacts makes full use of the structure of the flexible conductive soft board. When the flexible conductive soft board is used to make the stimulating electrodes, the wiring arrangement is rich and flexible, and the scope of application is wide.

The purpose of this application adopts following technical scheme to realize:

A flexible conductive soft board, the flexible conductive soft board is divided into a stimulating section, a connecting section and an intermediate section between the stimulating section and the connecting section along the length direction, the flexible conductive soft board includes: a flexible base; a plurality of first A conductive layer, a plurality of second conductive layers and a plurality of third conductive layers, the first conductive layer is arranged on the flexible base and located on the stimulation segment, and the second conductive layer is arranged on the flexible base and located on the middle section, the third conductive layer is arranged on the flexible substrate and located on the connecting section, each of the second conductive layers is electrically connected to at least one first conductive layer and at least one third conductive layer Conductive layer; insulating layer, the insulating layer is arranged on the flexible base and covers the first conductive layer, the second conductive layer and the third conductive layer, the part of the insulating layer located in the stimulation section is provided with A plurality of first openings, one of the first conductive layers is exposed through one of the first openings, and a plurality of second openings are provided on the part of the insulating layer located in the connecting section, and one of the first conductive layers is exposed through one of the first openings. The two openings expose one of the third conductive layers.

Preferably, the flexible conductive soft board further includes a plurality of first conductors and a plurality of second conductors, each of the first openings is provided with a first conductor, and each of the second openings There is a second conductor in it.

Preferably, the flexible conductive soft board also includes a plurality of stimulating contacts and a plurality of connecting contacts located on the insulating layer, and the plurality of stimulating contacts are located in the stimulating section of the flexible conductive soft board and distributed at intervals The plurality of connection contacts are located at the connection section of the flexible conductive soft board and distributed at intervals, each stimulation contact is connected to at least one first conductor, and each connection contact is connected to at least one second conductor.

Preferably, the plurality of stimulation contacts are distributed in a matrix, the plurality of connection contacts are distributed at intervals along the length direction of the flexible conductive soft board, and each of the connection contacts is arranged along a direction perpendicular to the flexible conductive soft board. Extended lengthwise.

Preferably, the flexible conductive soft board further includes a plurality of first conductive protective layers and a plurality of second conductive protective layers on the insulating layer, each of the first conductive protective layers covers a stimulating contact, and each The second conductive protective layer covers a connection contact.

Preferably, the flexible substrate has opposite first and second surfaces, and the first and second surfaces of the flexible substrate are each provided with a plurality of first conductive layers, a plurality of second conductive layers and a plurality of first conductive layers. Three conductive layers; the insulating layer includes a first insulating layer and a second insulating layer, the first insulating layer is arranged on the first surface of the flexible substrate and covers the first insulating layer on the first surface of the flexible substrate a conductive layer, a second conductive layer and a third conductive layer, the second insulating layer is arranged on the second surface of the flexible substrate and covers the first conductive layer, the second conductive layer on the second surface of the flexible substrate layer and a third conductive layer, the first opening extends from the first surface of the flexible substrate to the second surface and exposes one of the first conductive layer, and the second opening extends from the first surface of the flexible substrate One surface extends toward the second surface and exposes one of the third conductive layers.

Preferably, the middle section of the flexible conductive soft board has a corrugated structure.

Preferably, each of the second conductive layers is electrically connected to a first conductive layer and a third conductive layer, and each of the second conductive layers is integrated with a connected first conductive layer and a third conductive layer molding structure.

Preferably, the stimulating segment of the flexible conductive soft board is also provided with a direction indicating mark.

A stimulating electrode, the stimulating electrode includes any one of the above-mentioned flexible conductive soft plates, the stimulating section and the connecting section of the flexible conductive soft plate are respectively processed into a cylindrical structure, and the middle section of the flexible conductive soft plate is A structure formed by rolling a flexible conductive soft board processed into a cylindrical structure, a spiral structure or a wave shape, and the first opening and the second opening of the insulating layer face the outer surface of the flexible conductive soft board .

Preferably, the stimulating electrode further includes a lining tube, and the lining tube is arranged in the stimulating section, the middle section and the connecting section of the flexible conductive soft plate.

Preferably, the stimulating electrode further includes a first support tube and/or a second support tube, and the first support tube is arranged in the lining tube close to the stimulating section to increase the strength of the stimulating section of the stimulating electrode. Rigidity, the second support tube is arranged in the lining tube close to the connecting section to increase the rigidity of the connecting section of the stimulating electrode.

Preferably, the first support tube protrudes from an end of the lining tube close to the stimulation section, and the protruding part of the first support tube has a rounded end surface.

Preferably, the first support pipe is bonded and fixed to the inner liner pipe, and the second support pipe is bonded and fixed to the inner liner pipe.

Preferably, the stimulating electrode further includes an outer casing, the outer casing is arranged outside the stimulating section, the middle section and the connecting section of the flexible conductive soft board and is close to the flexible conductive soft board, and the outer casing corresponds to the The first opening of the insulating layer is provided with a third opening, and the outer sleeve is provided with a fourth opening corresponding to the second opening of the insulating layer.

Preferably, the stimulating electrode further includes an outer sleeve, and the outer sleeve is only disposed outside the middle section of the flexible conductive soft plate and close to the flexible conductive soft plate.

Preferably, the stimulating electrode further includes a locking ring, and the locking ring is fixedly sheathed on the outer sleeve corresponding to the middle section and adjacent to the connecting section of the stimulating electrode.

A method for manufacturing a flexible conductive soft board, the flexible conductive soft board is divided into a stimulating section, a connecting section, and an intermediate section between the stimulating section and the connecting section along the length direction, comprising the following steps: forming a plurality of Patterns of a first conductive layer, a plurality of second conductive layers, and a plurality of third conductive layers; forming a plurality of first conductive layers, a plurality of second conductive layers, and a plurality of third conductive layers on the flexible substrate, so The first conductive layer is arranged on the flexible substrate and located in the stimulation section, the second conductive layer is arranged on the flexible substrate and located in the middle section, and the third conductive layer is arranged on the flexible substrate. On the substrate and located in the connection section, each of the second conductive layers is electrically connected to at least one first conductive layer and at least one third conductive layer; an insulating layer is formed on the flexible substrate, and the insulating layer is arranged on On the flexible substrate and covering the first conductive layer, the second conductive layer and the third conductive layer, a plurality of first openings are arranged on the part of the insulating layer located at the stimulation segment, through which one of the first One opening exposes one of the first conductive layers, and a plurality of second openings are arranged in the part of the insulating layer located at the connecting section, and one of the third conductive layers is exposed through one of the second openings.

Preferably, the method for forming patterns of a plurality of first conductive layers, a plurality of second conductive layers and a plurality of third conductive layers on a flexible substrate comprises: forming a dry film on the surface of the flexible substrate; The dry film on the flexible base is subjected to exposure and development treatment, and patterns of multiple first conductive layers, multiple second conductive layers and multiple third conductive layers are formed on the flexible base.

Preferably, the method for forming a plurality of first conductive layers, a plurality of second conductive layers and a plurality of third conductive layers on a flexible substrate comprises: performing magnetron sputtering or vacuum evaporation on the surface of the flexible substrate, A plurality of first metal layers are formed on the patterns of the plurality of first conductive layers of the flexible base, a plurality of second metal layers are formed on the patterns of the plurality of second conductive layers, and a plurality of second metal layers are formed on the patterns of the plurality of third conductive layers. forming a plurality of third metal layers; removing the dry film; thickening the plurality of first metal layers, the plurality of second metal layers and the plurality of third metal layers by electroplating to obtain a plurality of first conductive layers , a plurality of second conductive layers and a plurality of third conductive layers.

Preferably, the manufacturing method of the flexible conductive soft board further includes: forming a first conductor in each of the first openings, and forming a second conductor in each of the second openings.

Preferably, the manufacturing method of the flexible conductive soft board further includes: forming a plurality of stimulation contacts and a plurality of connection contacts on the insulating layer, and the plurality of stimulation contacts are located on the stimulation points of the flexible conductive soft board. segments and distributed at intervals, the plurality of connecting contacts are located at the connecting segment of the flexible conductive soft board and distributed at intervals, each stimulating contact is respectively connected to at least one first conductor, and each connecting contact is respectively connected to at least one first conductor Two conductors.

Preferably, the flexible substrate has opposite first and second surfaces, and a plurality of first conductive layers, a plurality of second conductive layers and a plurality of first conductive layers are formed on the first surface and the second surface of the flexible substrate. Three conductive layers; The method for forming an insulating layer on the flexible substrate includes: forming a first insulating layer on the first surface of the flexible substrate, forming a second insulating layer on the second surface of the flexible substrate, and The first insulating layer covers the first conductive layer, the second conductive layer and the third conductive layer on the first surface of the flexible substrate, and the second insulating layer covers the first conductive layer on the second surface of the flexible substrate. a conductive layer, a second conductive layer and a third conductive layer, the first opening extends from the first surface of the flexible substrate to the second surface and exposes one of the first conductive layer, and the second opening extends from the first surface of the flexible substrate to the second surface The first surface of the flexible substrate extends toward the second surface and exposes a third conductive layer.

Preferably, the manufacturing method of the flexible conductive soft board further includes, before forming patterns of a plurality of first conductive layers, a plurality of second conductive layers, and a plurality of third conductive layers on the flexible substrate, the flexible substrate is The surface is roughened.

A method for making a stimulating electrode, the stimulating electrode includes any one of the above-mentioned flexible conductive soft plates, the stimulating section and the connecting section of the flexible conductive soft plate are respectively made into a cylindrical structure, and the flexible conductive soft plate The middle section of the insulating layer is made into a cylindrical structure, a spiral structure or a structure formed after the corrugated flexible conductive soft board is rolled, and the first opening and the second opening of the insulating layer face the flexible conductive soft board of the outer surface.

Preferably, the stimulating electrode also includes a lining tube, the stimulating section and the connecting section of the flexible conductive soft plate are respectively made into a cylindrical structure, and the middle section of the flexible conductive soft plate is made into a cylindrical structure , spiral structure or corrugated flexible conductive soft plate formed by rolling the structure method comprises: placing the flattened flexible conductive soft plate on the base of the rolling equipment; The lining tube presses a part of the flexible conductive soft plate into the first semicircular groove on the upper surface of the base, aligns the lower pressing head with the second semicircular groove on the front end with the lining tube, and the The circular groove formed by the butt joint of the second semicircular groove and the first semicircular groove matches the shape of the flexible conductive soft board after being rolled, and the unpressed part of the flexible conductive soft board is pressed into the second semicircular groove. In the semi-circular groove, the stimulating section and the connecting section of the flexible conductive soft board are made into a cylindrical structure respectively, and the middle section of the flexible conductive soft board is made into a cylindrical structure, a spiral structure or a wave-shaped flexible The structure formed by rolling the conductive soft board, the inner liner is left in the stimulating section, the middle section and the connecting section of the flexible conductive soft board; the mandrel inside the inner liner is taken out.

Preferably, the stimulating electrode further includes an outer sleeve, the outer sleeve is provided with a third opening and a fourth opening, and the method for manufacturing the stimulating electrode further includes: before taking out the mandrel inside the lining tube , inserting the rounded flexible conductive soft plate into the outer sleeve, so that the third opening of the outer sleeve corresponds to the first opening of the insulating layer, and the fourth opening of the outer sleeve corresponds to the The second opening of the insulating layer.

Preferably, the stimulating electrode further includes an outer casing, and the manufacturing method of the stimulating electrode further includes: before taking out the mandrel inside the lining tube, inserting a rounded flexible conductive soft plate into the outer casing, Such that the outer sleeve is only located outside the middle section of the flexible conductive soft board.

Preferably, the flexible conductive soft board also includes a plurality of stimulating contacts and a plurality of connecting contacts located on the insulating layer, and the plurality of stimulating contacts are located in the stimulating section of the flexible conductive soft board and distributed at intervals , the plurality of connection contacts are located at the connection section of the flexible conductive soft board and distributed at intervals, each of the first openings is provided with a first conductor, and each of the second openings is provided with A second electrical conductor, each stimulating contact is connected to at least one first electrical conductor, and each connecting contact is respectively connected to at least one second electrical conductor; the manufacturing method of the stimulating electrode further includes: in at least one step, thickening the plurality of stimulation contacts and/or the plurality of connection contacts, filling the gaps between the plurality of stimulation contacts with insulating material, and/or filling the gaps between the plurality of connection contacts with insulation Material.

Preferably, the manufacturing method of the stimulating electrode further includes: in at least one step, forming a plurality of first conductive protection layers and a plurality of second conductive protection layers on the insulating layer, each of the first conductive protection layers Each layer covers a stimulating contact, and each of said second conductive protective layers covers a connecting contact.

Preferably, the manufacturing method of the stimulating electrode further includes: in at least one step, forming an insulating film on the first conductive protection layer and/or the second conductive protection layer.

Preferably, the manufacturing method of the stimulating electrode further includes: in at least one step, fixing a locking ring on the outer casing corresponding to the middle section and adjacent to the connecting section of the stimulating electrode.

Preferably, the stimulating electrode further includes a first support tube and/or a second support tube, and the manufacturing method of the stimulating electrode further includes: in at least one step, inserting the first support tube close to the stimulating section and/or, in at least one step, inserting the second support tube into the lining tube close to the connection section to increase the rigidity of the stimulating segment of the stimulating electrode; Rigidity of the connecting section of the stimulation electrode.

Preferably, the first support tube protrudes from an end of the lining tube close to the stimulating section, and the method for manufacturing the stimulating electrode further includes: in at least one step, extending the protruding part of the first support tube Some are made with rounded ends.

Compared with the prior art, the technical effects of the present application at least include:

By disposing a plurality of first conductive layers, a plurality of second conductive layers and a plurality of third conductive layers on a flexible substrate, wherein each second conductive layer is electrically connected to at least one first conductive layer and at least one third conductive layer , the first conductive layer to the third conductive layer are integrated on the flexible substrate, and when the flexible conductive soft board is made into a stimulating electrode, since there is no need to route wires in the micro-diameter of the stimulating electrode, more electrodes can be placed on the stimulating electrode Conductive layers and contacts, more abundant and flexible wiring arrangements, and a wide range of applications.

Description of drawings

The application will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic structural diagram of a flexible conductive soft board provided by an embodiment of the present application;

Fig. 2A is a schematic diagram of a circuit structure of a flexible conductive soft board provided by an embodiment of the present application;

Fig. 2B is a schematic diagram of the local structure of the adjacent stimulation section of the flexible conductive soft board in Fig. 2A;

Fig. 2C is a schematic diagram of the local structure of the adjacent connection section of the flexible conductive soft board in Fig. 2A;

Fig. 3 is a sectional view at A-A place among Fig. 2B;

Fig. 4 is the sectional view of B-B place in Fig. 2C;

Fig. 5 is a schematic structural view of a stimulating electrode provided in the embodiment of the present application when the outer sleeve is omitted;

Fig. 6 is the sectional view of C-C place among Fig. 5;

Fig. 7 is the sectional view of D-D place among Fig. 5;

Fig. 8A is a schematic diagram of the local structure of a stimulating electrode adjacent to the stimulating section provided by the embodiment of the present application;

Fig. 8B is a schematic diagram of the structure of the stimulating electrode in Fig. 8A when the outer sleeve is omitted;

Fig. 9 is a partial cross-sectional view of the stimulating electrode of Fig. 8A;

Fig. 10 is a schematic diagram of a partial structure of adjacent connection sections of a stimulating electrode provided in an embodiment of the present application;

Fig. 11 is a partial cross-sectional view of the stimulating electrode of Fig. 10;

Fig. 12 is a schematic flow diagram of a method for manufacturing a flexible conductive soft board provided in an embodiment of the present application;

FIG. 13 is a schematic flow chart of forming a conductive layer pattern provided by an embodiment of the present application;

Fig. 14 is a schematic flow chart of forming a conductive layer provided by an embodiment of the present application;

Fig. 15 is a schematic flowchart of a method for manufacturing a stimulating electrode provided in an embodiment of the present application;

Fig. 16 is a schematic structural view of a rounded flexible conductive soft board adjacent to the stimulation section provided by the embodiment of the present application;

Fig. 17 is a schematic flowchart of another method for manufacturing a stimulating electrode provided in an embodiment of the present application;

18A to 18D are schematic diagrams of the sub-steps of rolling a flexible conductive soft board provided by the embodiment of the present application;

Fig. 19 is a schematic flowchart of another method for manufacturing a stimulating electrode provided in the embodiment of the present application;

Fig. 20 is a schematic structural view of a rolling device provided in an embodiment of the present application;

Fig. 21 is a schematic structural view of a rolling device provided in the embodiment of the present application when the lower pressing head is omitted;

FIG. 22 is a schematic diagram of an enlarged structure at S in FIG. 21 .

In the figure: 10, flexible conductive soft board; 10a, stimulating section; 10b, middle section; 10c, connecting section; 11, flexible substrate; 12, first conductive layer; 12a, first opening; 121, first conductor ; 13, the second conductive layer; 14, the third conductive layer; 14a, the second opening; 141, the second conductor; 15, stimulating contacts; 16, connecting contacts; 1st insulating layer; 19, second insulating layer; 20, lining pipe; 21, locking ring; 22, first supporting pipe; 23, second supporting pipe; 24, outer casing; 30, base; 31, first semicircle Groove; 32, mandrel; 40, lower pressure head; 50, first lifting assembly; 51, first bracket; 511, first lifting guide rail; 52, first lifting drive mechanism; 521, first connector; 522, 53, the second bracket; 531, the first fixing member; 532, the second fixing member; 533, the first side wall; 534, the second side wall; 535, the third side wall; 536, the bottom Wall; 537, second lifting guide rail; 54, adjustment assembly; 541, adjustment handle; 542, sliding member; 60, second lifting drive mechanism; 61, second connecting piece; 62, second lifting screw.

Detailed ways

Below, the present application will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, on the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form a new embodiment. .

The words expressing position and direction described in this application, such as "upper" and "lower", are all described with the accompanying drawings as examples, but changes can also be made according to needs, and all changes are included in this application. within the scope of protection. The accompanying drawings of this application are only used to illustrate the relative positional relationship, and the layer thickness of some parts is drawn in an exaggerated way for easy understanding, and the layer thickness in the drawings does not represent the proportional relationship of the actual layer thickness.

1 to 4, the embodiment of the present application provides a flexible conductive soft board 10, the flexible conductive soft board 10 is divided into a stimulating section 10a, a connecting section 10c along the length direction, and a section located between the stimulating section 10a and the connecting section 10c. The middle section 10b between them, before being made into a stimulating electrode, the flexible conductive soft board 10 can be a planarized structure, and when it is made into a stimulating electrode, the flexible conductive soft board 10 can be rounded, wherein the stimulating section 10a and the connecting section 10c are respectively processed into a cylindrical structure, and the middle section 10b is processed into a cylindrical structure, a spiral structure or a structure formed by rolling a wave-shaped flexible conductive soft plate.

The flexible conductive soft board 10 includes: a flexible substrate 11, a plurality of conductive layers and insulating layers, and may also include a plurality of first conductors 121, a plurality of second conductors 141, a plurality of stimulating contacts 15, a plurality of connection Contact points 16 , a plurality of first conductive protection layers (not shown in the figure), a plurality of second conductive protection layers (not shown in the figure) and direction indicating marks 17 . A plurality of conductive layers are buried inside the flexible conductive soft board 10 and extend along the length direction of the flexible conductive soft board 10. The plurality of conductive layers may include a plurality of first conductive layers 12, a plurality of second conductive layers 13, and a plurality of third conductive layers. Conductive layer 14.

In some embodiments, the total length of the flexible conductive soft board 10 can be 300mm, 400mm, 500mm or 600mm, the width of the stimulating section 10a and the connecting section 10c can be equal, and the width of the stimulating section 10a and the connecting section 10c can be All are 3mm, 3.2mm, 3.444mm, 3.6mm or 4mm.

The length of the stimulating section 10a can be 10mm, 12.05mm or 20mm, the length of the middle section 10b can be 300mm, 361.5mm or 400mm, and the length of the connecting section 10c can be 20mm, 23.2mm or 30mm.

In some embodiments, the thickness of the flexible substrate 11 may be 20 μm, 25 μm or 30 μm, wherein the flexible substrate 11 may be made of polymer materials such as polyimide and polyethylene terephthalate.

In some implementations, the middle section 10b of the flexible conductive soft board 10 may have a corrugated structure. After the corrugated intermediate section 10b is rounded, when inserted into the inner liner 20, the intermediate section 10b can evenly cover the inner liner 20 and has elasticity, and the helical intermediate section 10b also has elasticity. The middle section 10b of the flexible conductive soft board 10 has the same width everywhere along the wave extension direction, and the width can be 1.6mm, 1.8mm or 2mm. The width of the middle section 10 b of the flexible conductive soft board 10 along the direction perpendicular to the length of the flexible conductive soft board 10 may be 4.5 mm, 4.8 mm, 5.079 mm or 5.2 mm.

Referring to Fig. 3 and Fig. 4, the first conductive layer 12 is arranged on the flexible substrate 11 and located at the stimulation segment 10a, the first conductive layer 12 is used to electrically connect the stimulation contacts on the flexible conductive soft board 10 15, the second conductive layer 13 is arranged on the flexible substrate 11 and located in the middle section 10b, the third conductive layer 14 is arranged on the flexible substrate 11 and located in the connecting section 10c, the third The conductive layer 14 is used to electrically connect the connection contacts 16 on the flexible conductive soft board 10 . The first conductive layer 12 , the second conductive layer 13 and the third conductive layer 14 extend along the length direction of the flexible conductive soft board 10 respectively. Each of the second conductive layers 13 is electrically connected to at least one first conductive layer 12 and at least one third conductive layer 14, so that a connection contact 16 can be electrically connected through the first conductive layer 12 to the third conductive layer 14. Connect one stimulating contact 15 or electrically connect multiple stimulating contacts 15 at the same time, or a plurality of connecting contacts 16 may be electrically connected to one stimulating contact 15 or simultaneously electrically connect through the first conductive layer 12 to the third conductive layer 14 Sexually connect a plurality of stimulation contacts 15.

In some embodiments, in the thickness direction of the flexible conductive soft board 10, the plurality of conductive layers may be distributed on at least two layers of the flexible conductive soft board 10 with different thicknesses, at least two conductive layers At least a part of them overlaps in the thickness direction of the flexible conductive soft board 10, so that the number of conductive layers can be increased while the width of the flexible substrate 11 remains unchanged.

It should be noted that, in the thickness direction of the flexible substrate 11, a plurality of first conductive layers 12 may be located in the same layer or different layers, a plurality of second conductive layers 13 may be located in the same layer or different layers, and a plurality of third conductive layers 13 may be located in the same layer or in different layers. 14 can be located in the same layer or different layers. When the conductive layer is located in the same layer, the manufacturing process can be simplified and the manufacturing difficulty can be reduced. When the conductive layer is located in different layers, the number of conductive layers can be increased under the condition that the width of the flexible substrate 11 remains unchanged. , so that the number of stimulating contacts 15 can be increased. In some embodiments, each of the second conductive layers 13 can be electrically connected to a first conductive layer 12 and a third conductive layer 14, and each of the second conductive layers 13 is connected to a first conductive layer 12 and a third conductive layer 14 are integrally formed. In this way, a connection contact 16 can be electrically connected to a stimulation contact 15 through a first conductive layer 12, a second conductive layer 13 and a third conductive layer 14, and the integrally formed structure can pass through the thickness of the flexible substrate 11. direction, the second conductive layer 13 and its connected first conductive layer 12 and third conductive layer 14 are arranged on the same layer. The above arrangement can simplify the manufacturing process and reduce the difficulty of manufacturing.

In some embodiments, the thickness of the first conductive layer 12 may be equal to the thickness of the second conductive layer 13 and the third conductive layer 14 , and the thickness may be 0.01 mm, 0.02 mm or 0.03 mm.

The insulating layer is arranged on the flexible substrate 11 and covers the first conductive layer 12, the second conductive layer 13 and the third conductive layer 14, and the part of the insulating layer located at the stimulation segment 10a is provided with multiple A first opening 12a, the first opening 12a is, for example, a blind hole, a first conductive layer 12 is exposed through a first opening 12a, and a first opening 12a is used to realize the first The electrical connection between the conductive layer 12 and a stimulating contact 15 on the flexible conductive soft board 10, the part of the insulating layer located at the connecting section 10c is provided with a plurality of second openings 14a, the second openings 14a are for example It is a blind hole, and one of the third conductive layers 14 is exposed through one of the second openings 14a, and a connection between the third conductive layer 14 and the flexible conductive soft board 10 is realized through one of the second openings 14a. The electrical connection of the contact point 16.

In some embodiments, parylene or other silicon-based materials can be used for the insulating layer.

By setting a plurality of first conductive layers 12, a plurality of second conductive layers 13 and a plurality of third conductive layers 14 on the flexible substrate 11, wherein each second conductive layer 13 is electrically connected to at least one first conductive layer 12 and At least one third conductive layer 14, the first conductive layer 12 to the third conductive layer 14 are integrally arranged on the flexible substrate 11, when the flexible conductive soft board 10 is made into a stimulating electrode, since it does not need to be in the micro diameter of the stimulating electrode Routing, more conductive layers and contacts can be set on the stimulating electrodes, the wiring arrangement is more abundant and flexible, and the scope of application is wide.

In some implementations, the flexible conductive soft board 10 may further include a plurality of first conductors 121 and a plurality of second conductors 141, and each of the first openings 12a is provided with a first conductor 121 , the first conductive body 121 can realize the electrical connection between the first conductive layer 12 and a stimulating contact 15 on the flexible conductive soft board 10, and a second conductive body 141 is arranged in each second opening 14a, The second conductor 141 can realize the electrical connection between the third conductive layer 14 and a connecting contact 16 on the flexible conductive soft board 10 .

In some embodiments, the flexible conductive soft board 10 may also include a plurality of stimulation contacts 15 and a plurality of connection contacts 16 on the insulating layer, the plurality of stimulation contacts 15 are located on the flexible conductive soft board. The outer surface of the stimulation section 10a of the soft board 10 is distributed at intervals, the stimulation contacts 15 can be used to apply electrical stimulation, and the plurality of connection contacts 16 are located on the outer surface of the connection section 10c of the flexible conductive soft board 10 and are spaced apart distribution, the connecting contact 16 can establish an electrical connection between the stimulating contact 15 and the stimulator (not shown), and the connecting contact 16 can be electrically connected to the stimulator (not shown) through a cable, for example, every Each stimulating contact 15 is connected to at least one first conductor 121 respectively, and each connecting contact 16 is respectively connected to at least one second conductor 141, so that the stimulating contact 15 passes through the first conductor 121, the first conductive layer 12 to The third conductive layer 14 and the second conductive body 141 establish an electrical connection with the stimulation contact 15 .

In some embodiments, the stimulating contact 15 can be one or more of circular, linear, dot-shaped or sheet-shaped, and the circular stimulating contact 15 can be located at the end of the stimulating segment 10a. The outer surface is distributed along the circumferential direction, and the linear stimulating contacts 15 can be distributed along the circumferential direction on the outer surface of the stimulating segment 10a or along the length direction of the flexible conductive soft board 10, and the point-shaped stimulating contacts 15 may be a dot-shaped structure, and the sheet-shaped stimulating contact 15 may be a circular sheet-shaped structure or an elliptical sheet-shaped structure.

In some embodiments, the plurality of stimulating contacts 15 can be divided into multiple groups along the length direction of the flexible conductive soft board 10, and each group of stimulating contacts 15 can be included on the outer surface of the stimulating segment 10a along the circumferential direction, etc. Three sheet-shaped stimulating contacts 15 are distributed at intervals.

In some embodiments, the plurality of stimulating contacts 15 may include two circular stimulating contacts 15 and a plurality of sheet-shaped stimulating contacts 15 located between the two circular stimulating contacts 15, so The plurality of sheet-shaped stimulating contacts 15 can be divided into multiple groups along the length direction of the flexible conductive soft board 10, and each group of stimulating contacts 15 can include the outer surface of the stimulating section 10a distributed at equal intervals in the circumferential direction. Three sheet-shaped stimulation contacts 15 .

In some embodiments, the plurality of stimulating contacts 15 can be divided into three groups along the length direction of the flexible conductive soft board 10, and the flexible conductive soft board 10 can be made into a stimulating electrode by setting the pieced stimulating contacts 15 Finally, each group of stimulation contacts 15 can realize individual directional electrical stimulation, so that the electrical stimulation generated by it can be directed to a specific site/direction, thereby reducing excessive treatment.

Referring to Fig. 2A and Fig. 2B, in some embodiments, the plurality of stimulation contacts 15 may be distributed in a matrix, and the plurality of connection contacts 16 are distributed at intervals along the length direction of the flexible conductive soft board 10, each The connection contacts 16 extend along a direction perpendicular to the length of the flexible conductive soft board 10 , and the connection contacts 16 may be ring-shaped.

In some embodiments, the number of stimulating contacts 15 and connecting contacts 16 can be 12. The stimulating contacts 15 can be arranged in 4 rows along the length direction of the flexible conductive soft board 10 , and can be arranged in 3 rows along the width direction of the flexible conductive soft board 10 .

In some embodiments, the number of connection contacts 16 can be 6, and one connection contact 16 can be electrically connected to two stimulation contacts 15 at the same time.

In some embodiments, the ring-shaped connecting contact 16 may have a width of 0.8 mm, 1 mm or 1.5 mm. The length of the sheet-shaped stimulating contact 15 can be 1.2mm, 1.5mm or 1.8mm, and the width of the stimulating contact 15 can be 0.7mm, 0.9mm or 1.2mm.

The gap between two adjacent connection contacts 16 along the length direction of the flexible conductive soft board 10 may be 0.3mm, 0.5mm or 0.8mm. The gap between two adjacent stimulation contacts 15 in the same row along the length direction of the flexible conductive soft board 10 can be 0.5mm, 1mm or 1.5mm.

In some embodiments, the thickness of the stimulation contacts 15 and the connection contacts 16 may be equal, and the thicknesses may be 0.03mm, 0.05mm or 0.08mm.

In some embodiments, the flexible conductive soft board 10 may also include a plurality of first conductive protection layers and a plurality of second conductive protection layers on the insulating layer, each of the first conductive protection layers covers a Stimulating contacts 15, each of said second conductive protective layers covers a connecting contact 16. By arranging the first conductive protection layer and the second conductive protection layer, the stimulation contact 15 and the connection contact 16 can avoid direct contact between the human body and human tissue, thereby improving safety.

In some embodiments, the material of the first conductive protective layer and the second conductive protective layer may be platinum, and the first conductive protective layer and the second conductive protective layer made of platinum have high compatibility and safety with human tissue. The thicknesses of the first conductive protection layer and the second conductive protection layer may both be 1 μm, 5 μm or 10 μm.

The flexible conductive soft board 10 can be made as a stimulating electrode implanted in the human body, and the stimulating contact 15 can be prevented from being exposed by setting a first conductive protective layer covering the stimulating contact 15 and a second conductive protective layer covering the connecting contact 16. Inside the human body, it is relatively safe.

3 and 4, in some embodiments, the flexible substrate 11 has a first surface and a second surface opposite, the first surface and the second surface of the flexible substrate 11 can be provided with a plurality of first A conductive layer 12 , multiple second conductive layers 13 and multiple third conductive layers 14 .

The insulating layer may include a first insulating layer 18 and a second insulating layer 19, the first insulating layer 18 is disposed on the first surface of the flexible substrate 11 and covers the first surface of the flexible substrate 11. The first conductive layer 12, the second conductive layer 13 and the third conductive layer 14, the second insulating layer 19 is arranged on the second surface of the flexible base 11 and covers the second surface of the flexible base 11 The first conductive layer 12, the second conductive layer 13 and the third conductive layer 14, the first opening 12a extends from the first surface of the flexible substrate 11 to the second surface and exposes one of the first conductive layer 12 , the second opening 14 a extends from the first surface of the flexible substrate 11 to the second surface and exposes one of the third conductive layers 14 . By disposing conductive layers on the first surface and the second surface of the flexible substrate 11 at the same time, the number of conductive layers can be increased while the width of the flexible substrate 11 remains unchanged, thereby increasing the number of stimulating contacts 15 .

In some embodiments, the first surface of the flexible substrate 11 can be provided with 6 first conductive layers 12, 6 second conductive layers 13 and 6 third conductive layers 14, and the second surface of the flexible substrate 11 can be Six first conductive layers 12 , six second conductive layers 13 and six third conductive layers 14 are provided.

In some embodiments, each stimulating contact 15 can be electrically connected to the first conductive layer 12 by connecting the stimulating contact 15 with a first conductor 121; The two conductors 141 are connected to realize the electrical connection between the connection contact 16 and the third conductive layer 14 .

In some embodiments, the stimulating section 10a of the flexible conductive soft board 10 may also be provided with a direction indicating mark 17 . The length of the direction indicator mark 17 can be 2mm, 3mm or 5mm. When the stimulating electrode is implanted in the body, the direction indicator mark 17 helps the doctor determine the placement position and rotation direction of the stimulating electrode.

Referring to Fig. 5 to Fig. 11, the embodiment of the present application also provides a stimulating electrode, the stimulating electrode includes any flexible conductive soft board 10 mentioned above, and the stimulating electrode may also include an inner lining tube 20, an outer tube 24, The locking ring 21 and the first support tube 22 and/or the second support tube 23 .

The stimulating section 10a and the connecting section 10c of the flexible conductive soft plate 10 are respectively processed into a cylindrical structure, and the middle section 10b of the flexible conductive soft plate 10 is processed into a cylindrical structure, a spiral structure or a corrugated structure. In the structure formed after the flexible conductive soft board 10 is rolled, the first opening 12a and the second opening 14a of the insulating layer face the outer surface of the flexible conductive soft board 10 .

Stimulating electrodes can usually be used to implant a certain area in the brain to electrically stimulate the patient. In order to achieve the best stimulation direction and point combination, the number of stimulating contacts 15 will be preset as much as possible, such as 8 contacts , 12 contacts or 24 contacts, for which it is necessary to preset the number of the first conductive layer 12 , the second conductive layer 13 and the third conductive layer 14 corresponding to each stimulating contact 15 .

Compared with the existing stimulation electrodes that use a segmented circular stimulation ring and the stimulation electrodes that use metal guide wires to connect the stimulation ends and connection ends by welding, see Figure 2A and Figure 2B, this application uses a flexible conductive soft board 10 as the stimulation electrode In the circuit part, a fragmented stimulation contact mode is designed, and the stimulation contacts 15 are divided into multiple groups, and each group of stimulation contacts 15 can realize individual directional electrical stimulation, so that the electrical stimulation generated by it can be aimed at specific parts /direction for electrical stimulation, thereby reducing excessive treatment; based on the process to achieve the stretching requirements of the stimulating electrode wire, the middle section 10b of the flexible conductive soft board 10 is designed as a wave-shaped structure, based on the compact structural characteristics of the flexible conductive soft board 10, An arrangement of 12 connection lines corresponding to 12 stimulation contacts (3x4 matrix) is realized.

In some embodiments, the total length of the stimulating electrodes may be 300mm, 400mm, 500mm or 600mm, and the outer diameter of the stimulating electrodes may be 1.05mm, 1.25mm or 1.5mm.

In some embodiments, the outer diameter of the stimulating electrode may be 1.25mm±0.02mm, and the cylindricity of the stimulating electrode may be 0.01mm.

Referring to FIG. 6 to FIG. 11 , in some embodiments, the inner liner 20 can be disposed in the stimulating section 10 a , the middle section 10 b and the connecting section 10 c of the flexible conductive soft board 10 . The inner liner 20 can be made of a material that is not sensitive to thermal deformation, such as polyurethane. The outer diameter of the liner 20 may be 1.1 mm, and the inner diameter may be 0.9 mm. By setting the lining tube 20, the rigidity of the stimulation electrode can be increased, and the implantation operation is facilitated when the stimulation electrode is implanted.

In some embodiments, the first support tube 22 can be arranged in the lining tube 20 close to the stimulation section 10a to increase the rigidity of the stimulation section 10a of the stimulation electrode, and the second support tube 23 It can be arranged in the inner liner 20 close to the connection section 10c to increase the rigidity of the connection section 10c of the stimulating electrode. The first support tube 22 can be made of polypropylene, and the second support tube 23 can be made of stainless steel. The first support tube 22 and the inner liner tube 20 can be bonded and fixed, and the second support tube 23 and the inner liner tube 20 can be bonded and fixed. Specifically, when the first support tube 22 and the second support tube 23 are inserted, Apply a small amount of glue on the inner wall of the inner liner pipe 20, or apply a small amount of glue on the outer surfaces of the first support pipe 22 and the second support pipe 23, and then achieve bonding and fixing after insertion. When the stimulating electrode is implanted, the stimulating section 10a and the connecting section 10c are under relatively high pressure, and the rigidity of the stimulating section 10a and the connecting section 10c of the stimulating electrode is increased through the first support tube 22 and the second supporting tube 23, so as to improve implantation. The operating efficiency is convenient for doctors to complete the implantation operation.

Referring to FIG. 9 , the inside of the first support tube 22 can be filled and shaped with structural glue, wherein the structural glue can be UV glue or epoxy resin. The type of structural glue is, for example, MED2000. After the structural glue is filled and formed, the first support tube 22 can protrude from the end of the lining tube 20 close to the stimulation section 10a, and the protruding part of the first support tube 22 has a rounded end surface, such as a hemispherical convex head . By setting the protruding part of the first support tube 22 as a smooth end surface, the damage to human tissue can be reduced when the stimulating electrode is implanted.

The outer diameter of the first support tube 22 may be 0.9 mm, and the inner diameter may be 0.52 mm; the outer diameter of the second support tube 23 may be 0.9 mm, and the inner diameter may be 0.8 mm.

In some embodiments, the outer sleeve 24 can be arranged outside the stimulating segment 10a, the middle segment 10b and the connecting segment 10c of the flexible conductive soft board 10 and close to the flexible conductive soft board 10, the outer sleeve 24 A third opening may be provided corresponding to the first opening 12a of the insulating layer, and a fourth opening may be provided on the outer sleeve 24 corresponding to the second opening 14a of the insulating layer. The third opening of the outer sleeve 24 can be used to set the stimulating contact 15 , and the fourth opening of the outer sleeve 24 can be used to set the connecting contact 16 . The outer sleeve 24 can be made of polyurethane, the outer diameter of the outer sleeve 24 can be 1.25mm, and the inner diameter can be 1.17mm. By setting the outer sleeve 24, the flexible conductive soft board 10 can be separated from human tissue, reducing possible adverse effects of body fluids on the performance of the flexible conductive soft board 10 and reducing adverse effects of the flexible conductive soft board 10 on human tissue.

In some implementations, the outer sleeve 24 may only be disposed outside the middle section 10 b of the flexible conductive soft board 10 and close to the flexible conductive soft board 10 . For the stimulating segment 10a and the connecting segment 10c of the flexible conductive soft board 10 not covered by the outer sleeve 24, after the stimulating contact 15 and the connecting contact 16 are made, the stimulating contact 15 and the connecting contact 16 can be connected. Insulating material or other protective materials are filled between them, so that the outer surface of the stimulating section 10a and the connecting section 10c of the flexible conductive soft board 10 is flush with the outer surface of the outer sleeve 24, so that the stimulating electrode is an integral structure, and the outer surface of the stimulating electrode It is smooth and has no protrusions, which can reduce the damage to human tissue during implantation.

Referring to FIG. 5 , in some embodiments, the locking ring 21 can be fixedly sleeved on the outer sleeve 24 corresponding to the middle section 10b and adjacent to the connection section 10c of the stimulating electrode, and the length of the locking ring 21 can be is 2.5mm, and the distance between the locking ring 21 and the end surface of the connecting section 10c is, for example, 23.2mm. The locking ring 21 can be a metal ring, and the locking ring 21 can be provided with a PTFE (polydimethylsiloxane) coating, and the binding force between the locking ring 21 and the stimulating electrode preferably meets 14N pulling without loosening. When electrically connecting a stimulator (not shown) through a cable, the connection section 10c of the stimulating electrode needs to be fixedly connected to one end of the cable. By setting the locking ring 21, the connecting section 10c of the stimulating electrode is inserted into the cable. After being inserted into the connecting piece at one end, the locking ring 21 can be abutted by the fastener, so that the connecting section 10c of the stimulating electrode is fixedly connected with one end of the cable.

Referring to Fig. 12, the embodiment of the present application also provides a method for manufacturing a flexible conductive soft board 10, the flexible conductive soft board 10 is divided into a stimulating section 10a, a connecting section 10c along the length direction, and a stimulation section 10a, a connecting section 10c In the middle section 10b between, the manufacturing method of the flexible conductive soft board 10 includes steps S11-S13.

Step S11 : forming patterns of a plurality of first conductive layers 12 , a plurality of second conductive layers 13 and a plurality of third conductive layers 14 on the flexible substrate 11 .

Referring to FIG. 13 , in some implementation manners, the step S11 may include: step S111 to step S112.

Step S111 : forming a dry film on the surface of the flexible substrate 11 . The method of forming the dry film on the surface of the flexible substrate 11 may be hot rolling, and the temperature of the hot rolling may be 110°C.

Step S112: Exposing and developing the dry film on the flexible substrate 11 by using a mask, forming a plurality of first conductive layers 12, a plurality of second conductive layers 13 and a plurality of second conductive layers on the flexible substrate 11. The pattern of three conductive layers 14 .

The dry film can be a polymeric resin that reacts to ultraviolet rays. After being irradiated by ultraviolet rays, the dry film can undergo a polymerization reaction to form a stable substance attached to the flexible substrate 11, thereby achieving the function of blocking electroplating and etching. The mask plate can be a film sheet. Due to the use of the mask plate, the part with the image on the mask plate cannot transmit ultraviolet rays. Therefore, the part of the dry film that is not irradiated by ultraviolet rays will not be able to produce polymerization. The developer can be used to remove the part of the dry film that has not been polymerized, and the lines that need to be preserved will be revealed. Therefore, the circuit pattern produced by this step has the characteristics of thinness, straightness and flatness. The developer solution can be a weak base, such as sodium carbonate or sodium bicarbonate solution.

Step S12: forming a plurality of first conductive layers 12, a plurality of second conductive layers 13, and a plurality of third conductive layers 14 on the flexible substrate 11, the first conductive layers 12 are disposed on the flexible substrate 11 And located in the stimulation section 10a, the second conductive layer 13 is arranged on the flexible substrate 11 and located in the middle section 10b, the third conductive layer 14 is arranged on the flexible substrate 11 and located in the In the connection section 10c, each second conductive layer 13 is electrically connected to at least one first conductive layer 12 and at least one third conductive layer 14 .

Referring to FIG. 14 , in some implementation manners, the step S12 may include: step S121 to step S123.

Step S121: performing magnetron sputtering or vacuum evaporation on the surface of the flexible substrate 11, forming a plurality of first metal layers on the patterns of the plurality of first conductive layers 12 of the flexible substrate 11, A plurality of second metal layers are formed on the pattern of the second conductive layer 13 , and a plurality of third metal layers are formed on the pattern of the plurality of third conductive layers 14 .

The method for performing magnetron sputtering or vacuum evaporation on the surface of the flexible substrate 11 may include: sequentially performing ultrasonic cleaning, hot air drying and surface plasma treatment on the dry film on the surface of the flexible substrate 11; Placed in a sputtering fixture or an evaporation fixture for magnetron sputtering or vacuum evaporation. After magnetron sputtering and vacuum evaporation are completed, the thicknesses of the first metal layer, the second metal layer and the third metal layer can all be 200 nm, 600 nm or 1 μm.

Step S122: removing the dry film. The method for removing the dry film may include: washing off the dry film with a sodium hydroxide solution; rinsing the surface of the flexible substrate 11 with water.

Step S123: Using electroplating to thicken the plurality of first metal layers, the plurality of second metal layers and the plurality of third metal layers to obtain a plurality of first conductive layers 12, a plurality of second conductive layers 13 and a plurality of a third conductive layer 14. Since there is no metal layer at the position where the dry film is removed, a conductive layer cannot be formed at the position where the dry film is removed during electroplating.

The method for thickening the plurality of first metal layers, the plurality of second metal layers and the plurality of third metal layers by means of electroplating may include: cleaning the surface of the flexible substrate 11 with an alkaline cleaning agent; The flexible substrate 11 is placed in electroplating gold solution for electroplating; water rinsing; drying. The electric current size that adopts during electroplating can be 2mA.

After electroplating is finished, the thickened first metal layer forms the first conductive layer 12, the thickened second metal layer forms the second conductive layer 13, and the thickened third metal layer forms the third conductive layer 14, and the first conductive layer 12. The thicknesses of the second conductive layer 13 and the third conductive layer 14 may both be 0.1 μm, 10 μm, 50 μm or 100 μm.

Step S13: forming an insulating layer on the flexible substrate 11, the insulating layer is arranged on the flexible substrate 11 and covers the first conductive layer 12, the second conductive layer 13 and the third conductive layer 14, in the A plurality of first openings 12a are arranged on the part of the insulating layer located at the stimulating segment 10a, and one of the first conductive layers 12 is exposed through one of the first openings 12a, and the connecting layer located at the connecting portion of the insulating layer Part of the segment 10c is provided with a plurality of second openings 14a, and one third conductive layer 14 is exposed through one of the second openings 14a.

The flexible substrate 11 has opposite first surface and second surface, and these treatment steps of hot rolling forming dry film, exposure, development, magnetron sputtering or vacuum evaporation, removal of dry film and electroplating can be respectively on the flexible substrate 11 The first surface and the second surface are finished.

In some embodiments, the manufacturing method of the flexible conductive soft board 10 may further include: forming a first conductor 121 in each of the first openings 12a, and forming a first conductor 121 in each of the second openings 14a A second conductor 141 is formed. It should be noted that the formation of the first conductor 121 and the second conductor 141 can be carried out after the flexible conductive soft board 10 is rolled up when making the stimulation electrode, and the formation of the first conductor 121 and the second conductor 141 can be carried out by 3D Surface sputtering complete.

In some embodiments, the manufacturing method of the flexible conductive soft board 10 may further include: forming a plurality of stimulation contacts 15 and a plurality of connection contacts 16 on the insulating layer, the plurality of stimulation contacts 15 are located at The stimulation section 10a of the flexible conductive soft board 10 is distributed at intervals, and the plurality of connecting contacts 16 are located at the connecting section 10c of the flexible conductive soft board 10 and distributed at intervals, and each stimulating contact 15 is respectively connected to at least one first A conductor 121 , and each connection contact 16 is respectively connected to at least one second conductor 141 . The stimulation contact 15 and the connection contact 16 can be completed by sputtering on a 3D curved surface, and the formation of the first conductor 121 and the second conductor 141 can be performed in the same step as the formation of the stimulation contact 15 and the connection contact 16. The surfaces of the stimulation contacts 15 and the connection contacts 16 are flush with the outer surface of the insulating layer.

In some embodiments, the flexible substrate 11 has a first surface and a second surface opposite to each other, and a plurality of first conductive layers 12, a plurality of second conductive layers 12 are formed on the first surface and the second surface of the flexible substrate 11. conductive layer 13 and a plurality of third conductive layers 14 .

The step S13 may include: forming a first insulating layer 18 on the first surface of the flexible substrate 11, forming a second insulating layer 19 on the second surface of the flexible substrate 11, the first insulating layer 18 Covering the first conductive layer 12, the second conductive layer 13 and the third conductive layer 14 on the first surface of the flexible substrate 11, the second insulating layer 19 covers the first conductive layer on the second surface of the flexible substrate 11. A conductive layer 12, a second conductive layer 13 and a third conductive layer 14, the first opening 12a extends from the first surface of the flexible substrate 11 to the second surface and exposes one of the first conductive layer 12, The second opening 14 a extends from the first surface of the flexible substrate 11 to the second surface and exposes one of the third conductive layers 14 .

Wherein, the first insulating layer 18 is formed on the first surface of the flexible substrate 11, and the method for forming the second insulating layer 19 on the second surface of the flexible substrate 11 may include: using a vacuum vapor deposition process or coating process, forming a first insulating layer 18 on the first surface of the flexible substrate 11 , and forming a second insulating layer 19 on the second surface of the flexible substrate 11 .

In some embodiments, the manufacturing method of the flexible conductive soft board 10 may further include, before step S11, roughening the surface of the flexible substrate 11, and the roughening treatment can improve the electrical conductivity of the flexible substrate 11. layer bonding.

Wherein, the method for roughening the surface of the flexible substrate 11 may include any of the following: surface plasma treatment; or, pressing copper plates with copper buds on the first surface and the second surface of the flexible substrate 11 respectively. two surfaces, so that the first surface and the second surface of the flexible substrate 11 respectively form pits in the shape of copper buds. The tooth width of the copper bud can be 2 μm.

Referring to FIG. 15 , the embodiment of the present application also provides a method for manufacturing a stimulating electrode, the stimulating electrode includes any one of the above-mentioned flexible conductive soft plates 10 , and the manufacturing method for the stimulating electrode includes step S20.

Step S20: making the stimulation section 10a and the connecting section 10c of the flexible conductive soft board 10 into cylindrical structures respectively, and making the middle section 10b of the flexible conductive soft board 10 into cylindrical structures, spiral structures or The corrugated flexible conductive soft board 10 is a structure formed after being rolled, and the first opening 12 a and the second opening 14 a of the insulating layer face the outer surface of the flexible conductive soft board 10 .

After rolling, the partial structure of the flexible conductive soft board 10 is shown in FIG. 16 .

Referring to FIG. 17 , in some embodiments, the stimulating electrode may further include a lining tube 20, and the step S20 may include steps S201-S203.

Step S201: Place the planarized flexible conductive soft board 10 on the base 30 of the rolling device. Wherein, the first surface of the flexible conductive soft board 10 is attached to the upper surface of the base 30 .

Step S202: Use the inner liner 20 with the mandrel 32 inserted inside to press a part of the flexible conductive soft board 10 into the first semicircular groove 31 on the upper surface of the base 30, and place the front end surface with the second The lower pressing head 40 of the semicircular groove is aligned with the inner liner 20, and the circular groove formed by the docking of the second semicircular groove and the first semicircular groove 31 matches the shape of the flexible conductive soft board 10 after being rolled up, Press the unpressed part of the flexible conductive soft board 10 into the second semicircular groove, so that the stimulating section 10a and the connecting section 10c of the flexible conductive soft board 10 are respectively made into a cylindrical structure, The middle section 10b of the flexible conductive soft board 10 is made into a cylindrical structure, a spiral structure or a structure formed by rolling the flexible conductive soft board 10 into a circle, and the inner liner 20 is placed on the flexible conductive soft board 10. Inside the stimulating segment 10a, the middle segment 10b and the connecting segment 10c of the soft board 10. Wherein, the outer diameter of the inner lining pipe 20 matches the inner diameter of the flexible conductive soft board 10 after being rolled.

Step S203: Take out the mandrel 32 inside the lining pipe 20 .

Referring to FIG. 18A to FIG. 18D and FIG. 19 , in some embodiments, the step S20 may include steps S301 to S303.

Step S301: Place the flattened flexible conductive soft board 10 on the first semicircular groove 31 extending along the first direction on the upper surface of the base 30 of the rolling device, and the first semicircular groove 31 is along the direction perpendicular to the first direction The cross-sectional shape is semicircular.

Step S302: Press a part of the flexible conductive soft board 10 into the first semicircular groove 31 with the mandrel 32, the mandrel 32 is arranged above the first semicircular groove 31 of the base and extends along the first direction.

Step S303: Use the lower pressing head 40 to press and attach the rest of the flexible conductive soft board 10 to the mandrel 32, and the lower surface of the lower pressing head 40 is provided with a second semicircular groove extending along the first direction , the cross-sectional shape of the second semicircular groove perpendicular to the first direction is semicircular, and after the upper surface of the base 30 and the lower surface of the lower pressing head 40 approach, the first semicircular groove 31 and the second semicircular groove The circular hole extending along the first direction formed by the groove matches the shape of the flexible conductive soft board 10 after being rolled.

In some embodiments, the step S302 may include: sleeve the inner liner 20 on the mandrel 32, and use the mandrel 32 and the inner liner 20 to press a part of the flexible conductive soft board 10 into the first semicircle In the slot 31 , the outer diameter of the lining pipe 20 matches the inner diameter of the flexible conductive soft plate 10 after being rolled.

Referring to FIG. 20 to FIG. 22 , in some embodiments, the rolling device includes a base 30 , a mandrel 32 and a lower pressing head 40 , and may also include a first lifting assembly 50 and a second lifting drive mechanism 60 .

Referring to FIG. 21 , the upper surface of the base 30 is provided with a first semicircular groove 31 extending along a first direction, and the cross section of the first semicircular groove 31 is semicircular in shape perpendicular to the first direction.

The mandrel 32 is disposed above the first semicircular groove 31 of the base 30 and extends along the first direction, and the mandrel 32 is used to press a part of the flattened flexible conductive soft board 10 into the first semicircular groove within 31. The material of the mandrel 32 can be tungsten.

The lower surface of the lower pressing head 40 is provided with a second semicircular groove extending along the first direction. The cross-sectional shape of the second semicircular groove is semicircular along the direction perpendicular to the first direction. The lower pressing head 40 is used for Press and attach the rest of the flexible conductive soft board 10 to the mandrel 32. After the upper surface of the base 30 and the lower surface of the lower pressing head 40 approach, the first semicircular groove 31 and the second semicircular groove 31 The circular hole extending along the first direction formed by the groove matches the shape of the flexible conductive soft board 10 after being rolled.

Thus, the mandrel 32 is used to press a part of the flattened flexible conductive soft board 10 into the first semicircular groove 31, and then the rest of the flexible conductive soft board 10 is pressed and attached to the mandrel 32 by the lower pressing head 40. , in the process of the upper surface of the base 30 and the lower surface of the lower pressing head 40 approaching, the rolling of the flexible conductive soft board 10 is realized, the operation is simple, the rolling efficiency is high, and the needs of practical applications can be met.

In some embodiments, the first lifting assembly 50 may include a first support 51 , a first lifting drive mechanism 52 and a second support 53 , and may also include an adjustment assembly 54 .

The first bracket 51 can be disposed on the base 30 .

The first lift driving mechanism 52 can be arranged on the first support 51 , and the first lift drive mechanism 52 can drive the second support 53 to rise and fall.

The first lifting guide rail 511 may be provided on the first support 51, the second support 53 may be liftably connected to the first lifting guide rail 511, and the first lifting drive mechanism 52 may include a first connecting member 521 and The first lifting screw, the first connecting member 521 is connected to the second bracket 53 , the first lifting screw is connected to the first connecting member 521 to drive the first connecting member 521 to lift.

In some implementations, the first bracket 51 may be provided with two first lifting guide rails 511 .

The second bracket 53 can be provided with a first fixing piece 531 and a second fixing piece 532, and the first fixing piece 531 and the second fixing piece 532 are used to respectively fix the two ends of the mandrel 32. The second bracket 53 drives the mandrel 32 up and down through the first fixing member 531 and the second fixing member 532 .

In some embodiments, the mandrel 32 can move relative to the base 30 ; the base 30 can move relative to the mandrel 32 ; or, the mandrel 32 and the base 30 can move toward each other. Thus, the positions of the base 30 and/or the mandrel 32 can be flexibly adjusted.

In some embodiments, the adjustment assembly 54 can be arranged on the second bracket 53, and the adjustment assembly 54 can be connected to the first fixing member 531 to adjust the first fixing member 531 and the second fixing member. The distance between 532.

In some embodiments, the second bracket 53 may include a first side wall 533, a second side wall 534, a third side wall 535 and a bottom wall 536, and the second side wall 534 and the third side wall 535 are opposite to each other. The second fixing member 532 may be arranged on the second side wall 534, the bottom wall 536 is connected to the third side wall 535, and the adjustment assembly 54 may include an adjustment handle 541 and a sliding member 542, The sliding member 542 is slidably disposed on the bottom wall 536 along the first direction, the first fixing member 531 is disposed on the sliding member 542, and the adjusting handle 541 is mounted on the third side wall 535 , the adjusting handle 541 is connected to the sliding member 542 to adjust the distance between the first fixing member 531 and the second fixing member 532 .

In some implementations, the second lift driving mechanism 60 may be disposed on the second bracket 53 , and the second lift driving mechanism 60 is used to drive the lower pressing head 40 to rise and fall.

In some embodiments, the second support 53 may be provided with a second lifting guide rail 537, the lower pressing head 40 is liftably connected to the second lifting guide rail 537, and the second lifting drive mechanism 60 includes a second lifting guide rail 537. Two connecting parts 61 and a second lifting screw, the second connecting part 61 is connected to the lower pressing head 40, and the second lifting screw is connected to the second connecting part 61 to drive the second connecting part 61 lift.

In some embodiments, two second lifting guide rails 537 may be provided on the second bracket 53 .

In some embodiments, the lower pressing head 40 can move relative to the base 30; the base 30 can move relative to the lower pressing head 40; or, the lower pressing head 40 and the base 30 can move toward each other . Thus, the positions of the base 30 and/or the pressing head 40 can be flexibly adjusted.

In some embodiments, the manufacturing method of the stimulating electrode may further include: before step S202 or step S302, coating an adhesive on the outer surface of the lining tube 20, and/or, coating the mandrel The outer surface of the 32 is coated with a lubricant, and the mandrel 32 can be conveniently and smoothly taken out by coating the lubricant.

In some embodiments, the manufacturing method of the stimulating electrode may further include: before step S202 or step S302, coating an adhesive on the second surface of the flexible conductive soft board 10 . By coating the adhesive, the inner liner 20 and the flexible conductive soft board 10 can be firmly bonded.

Wherein, the adhesive can be UV glue, glue of model MED6360 or MG2502. Lubricant can adopt petroleum jelly. The glue cannot overflow the width range of the flexible conductive soft board 10 during the rolling process.

In some embodiments, the manufacturing method of the stimulating electrode may further include: before step S203 or after step S303, heating the flexible conductive soft board 10. After heating to 100° C., it can be kept warm for 10 minutes, so as to shape the round flexible conductive soft board 10 .

In some embodiments, the stimulating electrode may also include an outer sleeve 24, and the outer sleeve 24 may be provided with a third opening and a fourth opening, and the method for making the stimulating electrode may further include:

Before step S203, insert the rounded flexible conductive soft board 10 into the outer casing 24, so that the third opening of the outer casing 24 corresponds to the first opening 12a of the insulating layer, and the outer casing The fourth opening of the tube 24 corresponds to the second opening 14a of the insulating layer.

In some embodiments, the stimulating electrode can also include an outer sleeve 24, and the method for making the stimulating electrode can also include:

Before step S203 or after step S303 , insert the rounded flexible conductive soft board 10 into the outer sleeve 24 so that the outer sleeve 24 is only located outside the middle section 10 b of the flexible conductive soft board 10 .

In some embodiments, the manufacturing method of the stimulating electrode may further include: before step S203 or after step S303, after inserting the flexible conductive soft board 10 into the outer casing 24, using a heat shrinkable tube to complete the The outer sleeve 24 is heat-shrunk, and the heat-shrinkable tube is taken out. After heat shrinking, the outer diameter of the outer sleeve 24 may be 1.25mm. Through heat shrinkage, the outer sleeve 24 , the flexible conductive soft board 10 and the inner liner 20 form an integrated structure.

In some embodiments, the flexible conductive soft board 10 may also include a plurality of stimulation contacts 15 and a plurality of connection contacts 16 on the insulating layer, the plurality of stimulation contacts 15 are located on the flexible conductive soft board. The stimulation section 10a of the soft board 10 is distributed at intervals, the plurality of connection contacts 16 are located at the connection section 10c of the flexible conductive soft board 10 and distributed at intervals, and each of the first openings 12a is provided with a first Conductors 121, each second opening 14a is provided with a second conductor 141, each stimulating contact 15 is respectively connected to at least one first conductor 121, and each connecting contact 16 is respectively connected to at least one first conductor 141. Two conductors 141.

The manufacturing method of the stimulating electrode may also include: in at least one step, thickening the plurality of stimulating contacts 15 and/or the plurality of connecting contacts 16, and filling the gaps between the plurality of stimulating contacts 15 Insulating material, and/or filling insulating material in the gaps between multiple connecting contacts 16 , after filling, the insulating material, stimulating contacts 15 , connecting contacts 16 are flush with the outer surface of the outer sleeve 24 . Wherein, PDMS (polydimethylsiloxane) can be selected as the insulating material.

In some embodiments, the insulating material is filled in the gaps between the plurality of stimulation contacts 15, and/or, the way of filling the insulating material in the gaps between the plurality of connection contacts 16 may be: 3D printing filling; Alternatively, the outer surface of the rounded flexible conductive soft board 10 is covered with insulating material, and laser cutting is used to expose the stimulation contacts 15 and/or the connection contacts 16 .

In some embodiments, the manufacturing method of the stimulating electrode may further include: after filling the insulating material, covering the stimulating electrode with a heat-shrinkable tube as a whole, and performing heat-shrinking again.

In some embodiments, the manufacturing method of the stimulating electrode further includes: in at least one step, forming a plurality of first conductive protection layers and a plurality of second conductive protection layers on the insulating layer, each of the first conductive protection layers A conductive protective layer covers a stimulation contact 15 and each of said second conductive protective layers covers a connection contact 16 .

In some embodiments, the manufacturing method of the stimulating electrode may further include: in at least one step, forming an insulating film on the first conductive protection layer and/or the second conductive protection layer.

In some embodiments, the manufacturing method of the stimulating electrode may further include: in at least one step, fixedly sleeve the locking ring 21 on the outer sleeve 24 corresponding to the middle section 10b and adjacent to the stimulating electrode The connection section 10c.

In some embodiments, the locking ring 21 can be deformed by compressing the locking ring 21 with pliers, so that the locking ring 21 is closely combined with the outer tube 24 . After the locking ring 21 is fixed, the length of the locking ring 21 may be 2.5mm, the outer diameter of the locking ring 21 may be 1.25mm±0.02, and the distance between the locking ring 21 and the end surface of the connecting section 10c is, for example, 23.2mm.

In some embodiments, the stimulating electrode may also include a first support tube 22 and/or a second support tube 23, and the method for manufacturing the stimulating electrode may further include:

In at least one step, inserting the first support tube 22 into the lining tube 20 close to the stimulating section 10a to increase the rigidity of the stimulating section 10a of the stimulating electrode; and/or,

In at least one step, the second support tube 23 is inserted into the lining tube 20 close to the connection section 10c to increase the rigidity of the connection section 10c of the stimulation electrode.

In some embodiments, before inserting the first support tube 22 and/or the second support tube 23 , glue is applied to the inner wall of the lining tube 20 of the stimulating electrode.

In some embodiments, the first support tube 22 can protrude from an end of the lining tube 20 close to the stimulation section 10a, and the method for making the stimulation electrode can further include: in at least one step, the The protruding part of the first support tube 22 is made into a smooth end surface.

This application is expounded from the viewpoints of purpose of use, performance, progress and novelty, etc. The practical progress of its configuration has already met the function enhancement and use requirements emphasized by the Patent Law. The above descriptions and drawings of this application are only It is only a preferred embodiment of the application, and it is not intended to limit the application. Therefore, all the structures, devices, and features of the application are similar and identical, that is, all equivalent replacements or modifications are made according to the scope of the patent application of the application. , all should fall within the scope of protection of the patent application of the present application.

Claims (34)

A flexible conductive soft board, characterized in that the flexible conductive soft board is divided into a stimulating section, a connecting section, and an intermediate section between the stimulating section and the connecting section along the length direction, and the flexible conductive soft board includes: flexible substrate; A plurality of first conductive layers, a plurality of second conductive layers and a plurality of third conductive layers, the first conductive layers are arranged on the flexible base and located on the stimulation section, the second conductive layers are arranged on the on the flexible substrate and located in the middle section, the third conductive layer is arranged on the flexible substrate and located in the connecting section, and each of the second conductive layers is electrically connected to at least one first conductive layer and at least one a third conductive layer; an insulating layer, the insulating layer is arranged on the flexible base and covers the first conductive layer, the second conductive layer and the third conductive layer, and the part of the insulating layer located in the stimulation segment is provided with a plurality of first One opening, exposing one of the first conductive layers through one of the first openings, the part of the insulating layer located at the connecting section is provided with a plurality of second openings, through one of the second openings One of the third conductive layers is exposed. The flexible conductive soft board according to claim 1, wherein the flexible conductive soft board further comprises a plurality of first conductors and a plurality of second conductors, and each of the first openings is provided with a The first conductor, one second conductor is arranged in each of the second openings. The flexible conductive soft board according to claim 2, wherein the flexible conductive soft board further comprises a plurality of stimulation contacts and a plurality of connection contacts located on the insulating layer, the plurality of stimulation contacts Located on the stimulation section of the flexible conductive soft board and distributed at intervals, the plurality of connecting contacts are located at the connecting section of the flexible conductive soft board and distributed at intervals, each stimulating contact is connected to at least one first conductor, each The connection contacts are respectively connected to at least one second conductor. The flexible conductive soft board according to claim 3, wherein the plurality of stimulation contacts are distributed in a matrix, the plurality of connection contacts are distributed at intervals along the length direction of the flexible conductive soft board, each of the The connection contacts extend along a direction perpendicular to the length of the flexible conductive soft board. The flexible conductive soft board according to claim 3, wherein the flexible conductive soft board further comprises a plurality of first conductive protection layers and a plurality of second conductive protection layers on the insulating layer, and each of the The first conductive protective layer covers a stimulating contact, and each of the second conductive protective layers covers a connecting contact. The flexible conductive soft board according to claim 1, wherein the flexible substrate has a first surface and a second surface opposite to each other, and the first surface and the second surface of the flexible substrate are each provided with a plurality of first a conductive layer, a plurality of second conductive layers, and a plurality of third conductive layers; The insulating layer includes a first insulating layer and a second insulating layer, the first insulating layer is disposed on the first surface of the flexible substrate and covers the first conductive layer, the second insulating layer on the first surface of the flexible substrate Two conductive layers and a third conductive layer, the second insulating layer is arranged on the second surface of the flexible substrate and covers the first conductive layer, the second conductive layer and the third conductive layer on the second surface of the flexible substrate. Conductive layer, the first opening extends from the first surface of the flexible substrate to the second surface and exposes one of the first conductive layer, and the second opening extends from the first surface of the flexible substrate to the second surface The two surfaces extend and expose a third conductive layer. The flexible conductive soft board according to claim 1, wherein the middle section of the flexible conductive soft board has a wave-shaped structure. The flexible conductive soft board according to claim 1, wherein each of the second conductive layers is electrically connected to a first conductive layer and a third conductive layer, and each of the second conductive layers is connected to the connected A first conductive layer and a third conductive layer are integrally formed. The flexible conductive soft board according to claim 1, characterized in that, the stimulating section of the flexible conductive soft board is further provided with a direction indicating mark. A stimulating electrode, characterized in that the stimulating electrode comprises the flexible conductive soft plate according to any one of claims 1 to 9, and the stimulating section and the connecting section of the flexible conductive soft plate are respectively processed into a cylindrical shape structure, the middle section of the flexible conductive soft plate is processed into a cylindrical structure, a spiral structure or a structure formed after the corrugated flexible conductive soft plate is rolled, the first opening and the second opening of the insulating layer The opening faces the outer surface of the flexible conductive soft board. The stimulating electrode according to claim 10, characterized in that, the stimulating electrode further comprises a lining tube, and the lining tube is arranged in the stimulating section, the middle section and the connecting section of the flexible conductive soft plate. The stimulating electrode according to claim 11, characterized in that, the stimulating electrode further comprises a first support tube and/or a second support tube, and the first support tube is arranged near the inner lining of the stimulation segment In order to increase the rigidity of the stimulating section of the stimulating electrode, the second support tube is arranged in the lining tube close to the connecting section to increase the rigidity of the connecting section of the stimulating electrode. The stimulating electrode according to claim 12, wherein the first supporting tube protrudes from an end of the lining tube close to the stimulating section, and the protruding part of the first supporting tube has a rounded end surface. The stimulating electrode according to claim 12, characterized in that, the first support tube is bonded and fixed to the inner liner tube, and the second support tube is bonded and fixed to the inner liner tube. The stimulating electrode according to claim 10, characterized in that, the stimulating electrode also includes an outer casing, and the outer casing is arranged outside the stimulating section, the middle section and the connecting section of the flexible conductive soft plate and close to the flexible conductive soft plate. In the conductive soft board, a third opening is provided on the outer casing corresponding to the first opening of the insulating layer, and a fourth opening is arranged on the outer casing corresponding to the second opening of the insulating layer. The stimulating electrode according to claim 10, characterized in that, the stimulating electrode further comprises an outer casing, and the outer casing is arranged only outside the middle section of the flexible conductive soft plate and close to the flexible conductive soft plate. The stimulating electrode according to claim 16, characterized in that, the stimulating electrode further comprises a locking ring, and the locking ring is fixedly sleeved on the outer casing corresponding to the middle section and adjacent to the connection of the stimulating electrode. part. A method for manufacturing a flexible conductive soft board, characterized in that the flexible conductive soft board is divided into a stimulating section, a connecting section, and an intermediate section between the stimulating section and the connecting section along the length direction, comprising the following steps: forming patterns of a plurality of first conductive layers, a plurality of second conductive layers, and a plurality of third conductive layers on a flexible substrate; A plurality of first conductive layers, a plurality of second conductive layers and a plurality of third conductive layers are formed on the flexible base, the first conductive layers are arranged on the flexible base and located in the stimulation section, the The second conductive layer is arranged on the flexible substrate and located in the middle section, the third conductive layer is arranged on the flexible substrate and located in the connecting section, and each of the second conductive layers is electrically connected to at least a first conductive layer and at least one third conductive layer; An insulating layer is formed on the flexible substrate, the insulating layer is arranged on the flexible substrate and covers the first conductive layer, the second conductive layer and the third conductive layer, and the stimulating A plurality of first openings are provided in the part of the section, and one of the first conductive layers is exposed through one of the first openings, and a plurality of second openings are provided in the part of the insulating layer located in the connecting section, through One of the second openings exposes one of the third conductive layers. The method for manufacturing a flexible conductive soft board according to claim 18, wherein the method for forming patterns of a plurality of first conductive layers, a plurality of second conductive layers, and a plurality of third conductive layers on the flexible substrate comprises: forming a dry film on the surface of the flexible substrate; Exposing and developing the dry film on the flexible base by using a mask, forming patterns of multiple first conductive layers, multiple second conductive layers and multiple third conductive layers on the flexible base. The method for manufacturing a flexible conductive soft board according to claim 19, wherein the method for forming a plurality of first conductive layers, a plurality of second conductive layers and a plurality of third conductive layers on a flexible substrate comprises: Perform magnetron sputtering or vacuum evaporation on the surface of the flexible substrate, form a plurality of first metal layers on the patterns of the plurality of first conductive layers of the flexible substrate, and form a plurality of patterns of the second conductive layers forming a plurality of second metal layers, and forming a plurality of third metal layers on the patterns of the plurality of third conductive layers; removing the dry film; Thickening the plurality of first metal layers, the plurality of second metal layers and the plurality of third metal layers by means of electroplating to obtain a plurality of first conductive layers, a plurality of second conductive layers and a plurality of third conductive layers . According to the manufacturing method of the flexible conductive soft board according to claim 18, characterized in that, the manufacturing method of the flexible conductive soft board further comprises: forming a first conductor in each of the first openings, A second conductor is formed in the second opening. The method for manufacturing a flexible conductive soft board according to claim 21, wherein the method for manufacturing a flexible conductive soft board further comprises: forming a plurality of stimulation contacts and a plurality of connection contacts on the insulating layer, so that The plurality of stimulation contacts are located at the stimulation section of the flexible conductive soft board and are distributed at intervals, the plurality of connection contacts are located at the connection section of the flexible conductive soft board and are distributed at intervals, and each stimulation contact is respectively connected to at least one The first conductor, and each connecting contact is respectively connected to at least one second conductor. The method for manufacturing a flexible conductive soft board according to claim 18, wherein the flexible substrate has opposite first and second surfaces, and a plurality of a first conductive layer, a plurality of second conductive layers, and a plurality of third conductive layers; The method for forming an insulating layer on the flexible substrate includes: forming a first insulating layer on a first surface of the flexible substrate, forming a second insulating layer on a second surface of the flexible substrate, the first insulating layer A layer covers the first conductive layer, the second conductive layer and the third conductive layer on the first surface of the flexible substrate, and the second insulating layer covers the first conductive layer, the second conductive layer on the second surface of the flexible substrate. Two conductive layers and a third conductive layer, the first opening extends from the first surface of the flexible base to the second surface and exposes one of the first conductive layers, and the second opening extends from the flexible base The first surface extends toward the second surface and exposes one of the third conductive layers. The manufacturing method of the flexible conductive soft board according to claim 18, characterized in that, the manufacturing method of the flexible conductive soft board further comprises forming a plurality of first conductive layers, a plurality of second conductive layers and a plurality of conductive layers on the flexible substrate. Before patterning the third conductive layer, roughen the surface of the flexible substrate. A method for manufacturing a stimulating electrode, characterized in that the stimulating electrode comprises the flexible conductive soft board according to any one of claims 1 to 9, and the stimulating section and the connecting section of the flexible conductive soft board are respectively made into Cylindrical structure, the middle section of the flexible conductive soft plate is made into a cylindrical structure, a spiral structure or a structure formed by rolling the flexible conductive soft plate into a circle, the first opening of the insulating layer and the second opening faces the outer surface of the flexible conductive soft board. According to the manufacturing method of the stimulating electrode according to claim 25, it is characterized in that the stimulating electrode also includes a lining tube, and the stimulating section and the connecting section of the flexible conductive soft board are respectively made into a cylindrical structure, and the The method of making the middle section of the flexible conductive soft board into a cylindrical structure, a spiral structure or a wave-shaped flexible conductive soft board after being rolled up includes: placing the planarized flexible conductive soft board on the base of the rolling device; Press a part of the flexible conductive soft plate into the first semicircular groove on the upper surface of the base by using the inner liner tube with the mandrel inserted inside, and align the lower pressing head with the second semicircular groove on the front face In the inner tube, the circular groove formed by the butt joint of the second semicircular groove and the first semicircular groove matches the shape of the flexible conductive soft board after being rolled, and the unpressed part of the flexible conductive soft board The part of the flexible conductive soft plate is pressed into the second semi-circular groove, so that the stimulating section and the connecting section of the flexible conductive soft plate are respectively made into a cylindrical structure, and the middle section of the flexible conductive soft plate is made into a cylindrical structure, The spiral structure or the structure formed after the wavy flexible conductive soft plate is rolled, and the inner liner is left in the stimulating section, the middle section and the connecting section of the flexible conductive soft plate; Take out the mandrel inside the liner. According to the manufacturing method of the stimulating electrode according to claim 26, it is characterized in that the stimulating electrode further comprises an outer sleeve, and the outer sleeve is provided with a third opening and a fourth opening, and the manufacturing method of the stimulating electrode further comprises : Before taking out the mandrel inside the inner liner, insert the rounded flexible conductive soft plate into the outer sleeve, so that the third opening of the outer sleeve corresponds to the first opening of the insulating layer, The fourth opening of the outer casing corresponds to the second opening of the insulating layer. The manufacturing method of the stimulating electrode according to claim 26, characterized in that, the stimulating electrode also includes an outer sleeve, and the manufacturing method of the stimulating electrode further comprises: Before taking out the mandrel inside the inner liner, the flexible conductive soft plate after rolling is inserted into the outer sleeve, so that the outer sleeve is only outside the middle section of the flexible conductive soft plate. According to the manufacturing method of the stimulation electrode according to claim 27 or 28, it is characterized in that the flexible conductive soft board further comprises a plurality of stimulation contacts and a plurality of connection contacts located on the insulating layer, and the plurality of stimulation contacts The contacts are located on the stimulating section of the flexible conductive soft board and distributed at intervals, the plurality of connecting contacts are located on the connecting section of the flexible conductive soft board and distributed at intervals, and each of the first openings is provided with a first A conductor, each of the second openings is provided with a second conductor, each stimulating contact is connected to at least one first conductor, and each connecting contact is connected to at least one second conductor; The manufacturing method of the stimulating electrode further includes: in at least one step, thickening the plurality of stimulating contacts and/or the plurality of connecting contacts, filling the gaps between the plurality of stimulating contacts with insulating material, and Or, an insulating material is filled in the gaps between the plurality of connection contacts. The manufacturing method of the stimulating electrode according to claim 29, characterized in that, the manufacturing method of the stimulating electrode further comprises: in at least one step, forming a plurality of first conductive protective layers and a plurality of second protective layers on the insulating layer Two conductive protective layers, each of the first conductive protective layers covers a stimulation contact, and each of the second conductive protective layers covers a connection contact. The manufacturing method of the stimulating electrode according to claim 30, characterized in that, the manufacturing method of the stimulating electrode further comprises: in at least one step, in the first conductive protective layer and/or the second conductive protective layer An insulating film is formed on it. The manufacturing method of the stimulating electrode according to claim 27 or 28, characterized in that, the manufacturing method of the stimulating electrode further comprises: in at least one step, fixing a locking ring on the jacket corresponding to the middle section The connection section on the tube and adjacent to the stimulating electrode. The manufacturing method of the stimulating electrode according to claim 26, wherein the stimulating electrode further comprises a first support tube and/or a second supporting tube, and the manufacturing method of the stimulating electrode further comprises: In at least one step, inserting the first support tube into the liner tube adjacent to the stimulating segment to increase the rigidity of the stimulating segment of the stimulating electrode; and/or, In at least one step, the second support tube is inserted into the lining tube adjacent to the connecting section to increase the rigidity of the connecting section of the stimulating electrode. According to the method for manufacturing a stimulating electrode according to claim 33, it is characterized in that, the first support tube protrudes from an end of the lining tube close to the stimulating section, and the method for manufacturing a stimulating electrode further comprises: at least one In the step, the protruding part of the first support pipe is made into a round and smooth end surface.

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