CN216317507U

CN216317507U - Neural scope subassembly and neural scope equipment

Info

Publication number: CN216317507U
Application number: CN202120231691.1U
Authority: CN
Inventors: 韩沁驰; 曹建国; 周鉴开; 王硕
Original assignee: Jiangsu Hopebiomedical Science & Technology Co ltd
Current assignee: Jiangsu Hopebiomedical Science & Technology Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2022-04-19
Anticipated expiration: 2031-01-27

Abstract

The present invention relates to a neuroendoscopic assembly comprising a distal assembly which constitutes a distal end section of the neuroendoscopic assembly and is configured for image recording and/or illumination, and to a neuroendoscopic apparatus having such a neuroendoscopic assembly. The neuroendoscope assembly further comprises: a flexible main hose (13); a flexible snake bone-like member (5) distal to the main flexible tube; a flexible snake bone outer casing (6) sleeved on the snake bone-shaped component; and a rope driving device configured to drive the snake bone member to control bending of the snake bone member, and including an actuating rope (9) connected with the snake bone member and movably coupled with the actuating member through the main hose, and an actuating member for actuating the actuating rope. The neuroendoscope assembly is easy to operate, has wide vision range and has slight side damage to patients.

Description

Neural scope subassembly and neural scope equipment

Technical Field

The present invention relates to the field of medical devices, and more particularly, to a neuro-endoscope assembly and a neuro-endoscope apparatus having the same.

Background

Hemorrhagic stroke can be one of the major health threatening diseases. Therefore, on one hand, the first-level and second-level prevention of cerebrovascular diseases can be enhanced, and on the other hand, the clinical treatment capacity and level of spontaneous intracerebral hematoma can be improved. In practice, some spontaneous intracerebral hematoma patients require surgical intervention. Although the overall mortality rate of the operation shows a steady and downward trend in recent years, how to further improve the treatment level and reduce the mortality rate of the operation intervention becomes the direction of the development of medical technology. At present, the development of neuroendoscopy technology is different day by day, and the neuroendoscopy technology has the advantages of operation visual angle enlargement, high illumination intensity, strong direct vision, micro-invasiveness, time saving, better prognosis and the like for treating hypertensive cerebral hemorrhage. Neuroendoscopy can be a main component of a minimally invasive neurosurgical platform, wherein the treatment of hypertensive intracerebral hematoma by neuroendoscopy is gradually adopted clinically with the advantages of small trauma, thorough hemostasis and the like. It is known in medical practice to use neuroendoscopes, in which the shaft of the endoscope extending into the wound bed of the body is a straight, rigid structure. This kind of straight rigid pole portion structure, because can not bend or be difficult to bend, when the passageway that gets into has the bending, pole portion can produce the friction with the passageway inner wall for the entering of pole portion has the resistance, influences the operation, and wherein, the vice damage that the misoperation caused is comparatively common. When the neuroendoscope is used for operation, the operation visual field is deep, the operation space is narrow, the rigid rod part is easy to move in the operation field, and the adjacent blood vessels and nerves are damaged. Especially when using an angled neuroendoscope, the image displayed on the display is an anatomical deconstruction that is lateral to the neuroendoscope, which may be more likely to cause side damage. In the lateral corners of some surgical sites, it is difficult to make a comprehensive view in multiple directions. In addition, some known neuroendoscopes are wiped sterilized after use and then reused, which is prone to cross-contamination between patients.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to realize a neuro-endoscope assembly and a neuro-endoscope apparatus having the same, in which the neuro-endoscope assembly is easy to operate, has a wide field of view, and causes little side damage to a patient in use, as compared with the prior art.

The object is achieved by a neuroendoscopic assembly comprising a distal assembly constituting a distal end section of the neuroendoscopic assembly and configured for imaging and/or illumination. The neuroendoscope assembly further comprises: a flexible main hose; a flexible serpentine member distal to the main flexible tube; the flexible snake bone outer sleeve is sleeved on the snake bone-shaped component; and a rope driving device configured to drive the snake-bone shaped member to control bending of the snake-bone shaped member, and including an actuating rope connected with the snake-bone shaped member and movably coupled with the actuating member through the main hose, and an actuating member for actuating the actuating rope.

In such neuroendoscopy assembly, the snake bone member can be manipulated as desired and thus appropriately bent, so that the distal assembly can be placed at an appropriate angle and thus, for example, the region of interest can be photographed, illuminated, observed.

In some embodiments, the neuroendoscopic assembly may include a flexible working channel tube extending inside the hollow serpentine member and the main flexible tube and to an insertion interface configured for insertion of a working instrument.

In some embodiments, the neuroendoscopic assembly may include a cable extending inside the hollow serpentine member and the main flexible tube and configured for signal transmission and/or feeding of the distal assembly. For example, the same cable may contain not only signal lines but also feeder lines. Alternatively, one separate cable is used for transmitting signals and another separate cable is used for feeding power.

In some embodiments, the drive line may be two wire ropes, one of which is configured for manipulating the serpentine member in one bending direction and the other of which is configured for manipulating the serpentine member in the other, opposite bending direction. Here, a steel cord may be understood in general as a wire rope, which may have only one wire or may have one strand of wire. Alternatively, the drive cord may be a plastic filament, such as high strength nylon filament.

In some embodiments, the serpentine member may have two axially extending receiving grooves in its outer circumferential surface, each receiving one of the steel cords. Thus, the steel cord can be well restrained and guided.

In some embodiments, the neuroendoscopic assembly may include a first sleeve joint, the proximal end of the serpentine member interfacing with the distal end of the first sleeve joint, the main hose being sleeved over the first sleeve joint with its distal end.

In this context, the side facing the operator of the neuroendoscopic assembly (e.g., the physician performing the procedure) may be denoted as the proximal side (which may also be referred to as the back side), and the side facing away from the operator of the neuroendoscopic assembly, or the patient, may be denoted as the distal side (which may also be referred to as the front side).

In some embodiments, the neuroendoscope assembly may include a second sleeve connector that fits over and secures the snake bone member and the first sleeve connector to one another, the snake bone outer sleeve having its proximal end fitted over the second sleeve connector.

In some embodiments, the proximal end of the snake bone member may be positively connected in the circumferential direction with the distal end of the first sleeve joint, for example by mutually engaging male and female structures.

In some embodiments, the distal end of the primary hose may be stopped by the proximal end of the second cannula fitting and/or may collide with the proximal end of the snake overtube.

In some embodiments, the drive line may be provided with a line jacket, preferably the distal end of which is fixed to the first sleeve joint.

In some embodiments, the distal assembly may include a camera module, a light source secured to the camera module or the head mount, an at least partially transparent head mount, and a head end outer sleeve distally sleeved over the head mount and proximally over the snake outer sleeve.

In some embodiments, the head end mount may have a through bore that connects with a distal end of a working channel tube.

In some embodiments, the neuroendoscopic assembly can have a housing.

In some embodiments, the housing may include a distal first housing component and a proximal second housing component connected to one another.

In some embodiments, an adapter plate can be fastened in the housing, for example in the first housing part, via which adapter plate the cable is electrically connected with a connection cable which leads out of the housing and has a connector.

Alternatively, the distal assembly may be wirelessly connected with the host.

In some embodiments, the distal assembly may be fed by the host machine, or may be equipped with its own accumulator.

In some embodiments, a wheel is rotatably supported in the housing, for example in the second housing part, a wheel cable is wound around the wheel, which wheel cable is connected at both ends to a cable, respectively, and the wheel is provided with an actuating handle outside the housing.

In some embodiments, the neuroendoscopic assembly may have at least one of the following features:

the outer diameter of the main hose is less than or equal to 6mm, for example, 5 mm;

the inner diameter of the working channel pipe is within the range of 1-4 mm, such as 2mm or 3 mm;

the length of the rod part of the neuroendoscope component is more than or equal to 300mm, preferably more than or equal to 370mm, for example 400 mm;

the length of the distal assembly is 10mm or less, such as 8mm or less, such as 6 mm;

the length of the snake bone-shaped component is less than or equal to 65mm, such as less than or equal to 50mm, such as 40 mm;

the radius of curvature of the snake-bone shaped member is less than or equal to 12mm, such as less than or equal to 10mm, such as 8 mm;

starting from a straight-line extension, the handling angle of the snake-bone shaped member in one direction is ≧ 210 °, for example 240 °, and in the other direction is ≧ 140 °, for example 150 °.

The object is also achieved by a neuroendoscopy device comprising a host, a display and a neuroendoscopy assembly according to the utility model, which is coupled to the host.

In some embodiments, the neuroendoscopic apparatus may have a timer configured to time an operating time of the neuroendoscopic assembly and to decouple the neuroendoscopic assembly from the host after a predetermined time threshold is reached. Therefore, the neural endoscope component can be used for one time, or the limitation of the maximum use times of the neural endoscope component can be realized according to other designs.

In some embodiments, the timer can be disposed in a neuroendoscopic assembly, such as can be disposed in an adapter plate; or may be provided in the host.

In some embodiments, the neuroendoscopic apparatus may have a counter configured to count the coupling of the neuroendoscopic assembly to the host and disconnect the coupling of the neuroendoscopic assembly to the host after a predetermined threshold number of times is reached. Therefore, the neural endoscope component can be used for one time, or the limitation of the maximum use times of the neural endoscope component can be realized according to other designs.

In some embodiments, the counter may be disposed in a neuroendoscopic assembly, such as may be disposed in an adapter plate; or may be provided in the host.

The above-mentioned features and the features to be mentioned below as well as the features shown in the drawings can be combined with one another as desired, provided that the individual features to be combined are not mutually inconsistent. All technically feasible combinations of features are the technical contents contained in the description.

Drawings

The utility model is further explained below with the aid of exemplary embodiments with reference to the schematic drawings. Wherein:

fig. 1 is a schematic view of a neuroendoscopic apparatus according to an embodiment of the present invention.

Figure 2 is a longitudinal cross-sectional view of a neuroendoscopic assembly according to an embodiment of the present invention.

Figure 3 is a top plan view, partially in section, of the neuroendoscopic assembly of figure 2.

Figure 4 is a partially exploded view of an insertion shaft portion of the neuroendoscope assembly of figure 2.

Figure 5 is a side view of the neuroendoscopic assembly of figure 2.

Figure 6 is a partial longitudinal cross-sectional view of the insertion shaft portion of the neuro-endoscope assembly of figure 2.

Figure 7 is a partial perspective view of the insertion shaft portion of the neuroendoscope assembly of figure 2 with the external components omitted.

Fig. 8 is a cross-sectional view taken along section line B-B in fig. 6.

Fig. 9 is a cross-sectional view taken along section line C-C in fig. 6.

Fig. 10 is an enlarged view of a portion 33 in fig. 9.

Figure 11 is a front view of a distal assembly of the neuroendoscopic assembly of figure 2.

Figure 12 is a partial longitudinal cross-sectional view of the neuroendoscopic assembly of figure 2 in the distal region.

Figure 13 is a cross-sectional view of the neuroendoscopic assembly of figure 2 in a distal region along cross-sectional line a-a in figure 11.

Detailed Description

Fig. 1 is a schematic view of a neuroendoscopic apparatus according to an embodiment of the present invention. The neuroendoscope device comprises a neuroendoscope component 10, a host machine 20 and a display 30. The neuroendoscopic assembly 10 is coupled to the host computer 20, for example, via a connecting cable 26 with a connector 27 to realize mutual signal transmission connection and power feeding from the host computer 20 to the neuroendoscopic assembly 10. In some embodiments, not shown, instead of a wired connection, a wireless connection, such as a bluetooth connection, may be employed. The host 20 is connected to a display 30 via a cable 29, for which purpose both may have an HDMI interface, for example. In some embodiments, not shown, the host 20 and the display 30 may be integrated into a unitary machine. The host 20 may additionally have peripheral devices such as a keyboard and/or a mouse. The host 20 may be a portrait type or a landscape type. The display may for example have a high-definition display screen. Through the combination of the host, the display and the peripheral equipment, for example, the control of the neuroendoscopy component can be realized, and the functions of photographing, video recording, data analysis, storage and the like are realized.

The neuroendoscopic device may have a timer configured to time the operation of the neuroendoscopic assembly 10 and to decouple the neuroendoscopic assembly 10 from the host 20 after a predetermined time threshold is reached. Alternatively or additionally, the neuroendoscopic apparatus may have a counter configured to count the coupling of the neuroendoscopic assembly 10 to the host 20 and to disconnect the coupling of the neuroendoscopic assembly 10 to the host 20 after a predetermined threshold number of times is reached. The neuroendoscopic assembly 10 can be disposable with the aid of a timer or counter. In other designs, the maximum usage limit of the neuroendoscopic assembly 10 may be achieved by a timer or counter. The timer or counter may be integrated in the host 20, for example, or may be integrated in the patch panel 24, which will be mentioned below, for example.

The neuroendoscopic assembly 10 is described in more detail below with reference to figures 2-13.

Fig. 2 is a longitudinal sectional view of the neuroendoscope assembly 10, and fig. 3 is a partial sectional plan view of the neuroendoscope assembly 10, and in fig. 2 and 3, most of the insertion shaft portion of the neuroendoscope assembly 10 is omitted. Figure 4 is a partially exploded view of the insertion shaft of the neuroendoscope assembly 10 with the majority of the main hose 13 omitted.

The neuroendoscopic assembly 10 may include a flexible main tube 13 and a bendable serpentine member 5 distal to the main tube. The flexible snake bone outer sleeve 6 is sleeved on the snake bone-shaped component 5. The neuroendoscopic assembly 10 may further comprise a flexible working channel tube 8, the working channel tube 8 extending inside the hollow serpentine member 5 and the main hose 13 and to an insertion port 17, the insertion port 17 being configured for insertion of a working instrument. In fig. 5, a cap 50 for the insertion interface 17 can be seen, wherein, when an insertion of a not shown operating instrument is required, the cap 50 can be unscrewed and the insertion interface 17 can thus be released. The main hose 13 is connected directly to the plug-in connection 17 or via a separate connecting elbow 23 as shown in fig. 2 to the plug-in connection 17. The insertion interface 17 may have a luer fitting, for example.

The neuroendoscopic assembly 10 may have a housing. The housing may comprise a distal first housing part 15 and a proximal second housing part 16 connected to each other. The insertion rod is distal with respect to the housing. The proximal end section of the insertion shaft can be provided with a front sheath 14, which is fastened to the housing, surrounds and protects the proximal end section of the insertion shaft or main hose 13 and can be made of a soft elastic material, for example.

The neuroendoscopic assembly 10 may have a cord drive configured to drive the serpentine member 5 to control the bending of the serpentine member 5. The cord drive comprises a drive cord 9 and an operating member 18 for operating the drive cord 9. The driving cord 9 is connected to the snake-bone shaped member 5 and is coupled to the operating member 18 through the main hose 13. In the sense of the present invention, an actuating element can be understood in general as an element for actuating a drive line, for example a continuously present handle in the embodiment shown, but alternatively a polygonal joint to which a wrench with a corresponding polygonal joint can be engaged only when the operation is carried out. In the embodiment shown, the drive line 9 is two wire cables, each of which is fastened at one end to the distal end of the serpentine, wherein one wire cable is designed for steering the serpentine in one bending direction a and the other wire cable is designed for steering the serpentine in the other, opposite bending direction B. Within the second housing part 16, on a shaft 32, a wheel 19 is rotatably supported. A pulley cable 21 is wound around the pulley 19 and is connected at its two ends to a cable via respective actuators 22. The tightness of each wire rope can be adjusted by the adjuster 22. The wheel 19 is provided with an actuating handle outside the housing as a manual actuating element 18. As shown in fig. 5, from the linearly extended state of the serpentine member 5, when the operator turns the manipulation handle with the fingers in the counterclockwise direction C, the serpentine member 5 can be bent upward in the bending direction a, and when the operator turns the manipulation handle with the fingers in the clockwise direction D, the serpentine member 5 can be bent downward in the bending direction B. The maximum curvature of the serpentine member 5 in both directions is depicted in fig. 5, and at this time, the serpentine member 5 that is curved upward may have a central angle of, for example, about 210 °, and the serpentine member 5 that is curved downward may have a central angle of, for example, about 150 °. These central angles may be referred to as the steering angles of the serpentine member 5.

In some applications, by bending the serpentine member 5 in two directions and thus turning the distal end region of the insertion shaft or distal assembly 40 entirely in two directions, a more comprehensive viewing angle position can be obtained during minimally invasive surgery or neurosurgical brain surgery, which can result in a better working space for the surgical instrument. This can improve the success rate of the operation while improving the efficiency of the operation. For example, the neuroendoscopic assembly 10 according to the present invention may be suitable for use in minimally invasive microsurgical or neurosurgical ventricular surgery treatments.

For good confinement and guidance of the steel cables, the snake-bone shaped member 5 may have two axially extending receiving grooves 31 (see fig. 8) in its outer circumferential surface, each receiving one steel cable. The steel cord may also be provided with a cord jacket 12.

The neuroendoscopic assembly 10 may include a cable 7, the cable 7 extending inside the hollow serpentine member 5 and the main flexible tube 13 and configured for signal transmission and feeding of a distal assembly 40 to be described in detail later. An adapter plate 24 can be fastened with screws 25 in the first housing 15, via which adapter plate 24 the cable 7 is electrically connected to a connecting cable 26, which connecting cable 26 leads out of the housing and has a connector 27. For the purpose of securing and protecting the connection cable 26, a rear sheath 28 may be provided at the point where the connection cable 26 exits the housing. The connector 27 can be inserted into and pulled out of a corresponding jack of the host 20.

Next, a connection structure of components of the neuroendoscopy assembly according to an exemplary embodiment will be described with reference to fig. 6 to 10, in which fig. 6 is a partial longitudinal sectional view of an insertion shaft portion of the neuroendoscopy assembly 10 in a connection region, fig. 7 is a partial perspective view of the insertion shaft portion of the neuroendoscopy assembly 10 in the connection region, in which the snake outer sheath 6 and the main hose 13 are omitted and the second sleeve joint 11B is partially omitted so as to expose an internal structure hidden by the second sleeve joint 11B, fig. 8 is a transverse sectional view along a sectional line B-B in fig. 6, fig. 9 is a transverse sectional view along a sectional line C-C in fig. 6, and fig. 10 is an enlarged view of a portion 33 in fig. 9.

The neuroendoscopic assembly 10 may include a first sleeve joint 11a with a proximal end of the serpentine member 5 abutting a distal end of the first sleeve joint. The proximal end of the serpentine-shaped member 5 and the distal end of the first sleeve joint 11a can be connected in a form-fitting manner in the circumferential direction, for which purpose the two can have, for example, a mutually mating male-female structure. The main hose 13 can be fitted with its distal end onto the first sleeve connection 11 a. The neuroendoscope assembly 10 may further include a second sleeve joint 11b which is fitted over the abutting region of the serpentine member 5 and the first sleeve joint 11a and fixes the serpentine member 5 and the first sleeve joint 11a to each other. The snake bone outer cannula 6 can be fitted with its proximal end onto the second cannula fitting 11 b. For fixation purposes, glue may be applied, for example. For example, the second sleeve joint 11b may be first coated with glue on its inner circumferential surface and then sleeved onto the snake bone member 5 and the first sleeve joint 11 a. Advantageously, the distal end of the main tube 13 is stopped by the proximal end of the second sleeve connection 11b and abuts the proximal end of the snake bone outer tube 6. If necessary, the proximal end of the snake overtube 6 and/or the distal end of the main tube 13 may be glued on the inner circumference so that fixation and sealing can be achieved. The distal end of the cable sheath 12 can be fixed to the first sleeve connection 11a, for which purpose the first sleeve connection 11a can be slotted and can be rubberized or ultrasonically welded at the slot in order to fix the cable sheath 12 there.

Next, a distal assembly 40 of the neural endoscope assembly 10 is explained with reference to fig. 4 and fig. 11 to 13, in which fig. 11 is a front view of the distal assembly 40, fig. 12 is a partial longitudinal sectional view of the neural endoscope assembly in a distal region, and fig. 13 is a sectional view of the neural endoscope assembly 10 in the distal region along a sectional line a-a in fig. 11.

The distal assembly 40 forms the distal end section of the neuroendoscopic assembly 10 and is configured for imaging and/or illumination. In the illustrated embodiment, the distal assembly 40 may perform both imaging and illumination. The distal assembly 40 includes a camera module 1, a light source 2, an at least partially transparent head end mount 3, and a head end outer sleeve 4. The light source 2 can be fixed on the camera module 1 or the head end seat 3, the camera module 1 can be fixed on the head end seat 3, and the head end outer sleeve 4 can be sleeved on the head end seat 3 at the far side and sleeved on the snake bone outer sleeve 6 at the near side. In the embodiment shown, the light source 2 may comprise two LED light sources, which may be affixed on the front side of the camera module 1. The various components of distal assembly 40 may be secured to one another, such as by glue. The head mount 3 may have a circular hole above for relative positioning with the camera module 1. The head mount 3 may be made entirely of a transparent material and may have good light guiding and light scattering effects. The head end mount 3 may have a lower circular hole, which may be connected with the distal end of the working channel tube.

The neuroendoscopic assembly 10, for example, may have the following exemplary design parameters: at least the outer diameter of the main tube, in particular the entire insertion shaft, is less than or equal to 5.3mm, the length of the insertion shaft is greater than or equal to 370mm, the length of the distal assembly is less than or equal to 10mm, the length of the serpentine element is less than or equal to 65mm, the radius of curvature of the serpentine element is less than or equal to 12mm, the inner diameter of the working channel tube is 2mm, the actuation angle of the serpentine element in one direction starting from a straight-line extension is approximately 240 ° and the actuation angle in the other direction is approximately 150 °.

In some embodiments, neuroendoscopic assemblies and neuroendoscopic devices according to the present invention may have at least one of the following illustrative advantages:

1. the insertion rod part entering the human body is of a soft structure, the front end of the insertion rod part is provided with a snake bone-shaped component, and the snake bone-shaped component can be controlled to bend, so that the observation direction of the lens can be controlled, and the lens can more comprehensively see the complete part condition of the wound surface.

2. Because the insertion rod part entering the human body part is soft and bendable, more instruments can be accommodated in the operation wound channel for simultaneous use during operation.

3. The neuro-endoscope assembly may be a disposable product, which may avoid cross-contamination between patients.

4. By the technical measures of the utility model, the operation visual angle can be enlarged. On one hand, the lens can have a side view angle, and on the other hand, the snake bone can be bent, so that the lens can obtain a panoramic view when reaching a lesion part, for example, hematoma can be 'close-up', images can be enlarged, the hematoma and important peripheral nerve and blood vessel structures can be identified, the hematoma can be guided and removed, and a possible blind area under the condition of direct vision of a hard mirror can be eliminated. In addition, can provide better observation effect for the deep field of vision to can show the condition in the art clearly on the display in step, this can avoid the injury that blind operation probably brought, promoted the accuracy and the security of operation.

5. The insertion shaft portion entering the body portion is soft and bendable, thereby avoiding collateral damage to blood vessels and nerves adjacent the access passage.

6. The neuroendoscope assembly and the neuroendoscope equipment have simple structures and can be easily manufactured and used at low cost.

It is noted that the terminology used herein is for the purpose of describing particular aspects only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be understood that the terms "comprises" and "comprising," and other similar terms, when used in this specification, specify the presence of stated operations, elements, and/or components, but do not preclude the presence or addition of one or more other operations, elements, components, and/or groups thereof. The term "and/or" as used herein includes all arbitrary combinations of one or more of the associated listed items. In the description of the drawings, like reference numerals refer to like elements throughout.

The thickness of elements in the figures may be exaggerated for clarity. It will be further understood that if an element is referred to as being "on," "coupled to" or "connected to" another element, it can be directly on, coupled or connected to the other element or intervening elements may be present. Conversely, if the expressions "directly on … …", "directly coupled with … …", and "directly connected with … …" are used herein, then there are no intervening elements present. Other words used to describe the relationship between elements, such as "between … …" and "directly between … …", "attached" and "directly attached", "adjacent" and "directly adjacent", etc., should be similarly interpreted.

Terms such as "top," "bottom," "above," "below," "over," "under," and the like, may be used herein to describe one element, layer or region's relationship to another element, layer or region as illustrated in the figures. It will be understood that these terms are intended to encompass other orientations of the device in addition to the orientation depicted in the figures.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. Thus, a first element could be termed a second element without departing from the teachings of the present inventive concept.

It is also contemplated that all of the exemplary embodiments disclosed herein may be combined with each other as desired.

Finally, it is pointed out that the above-described embodiments are only intended to be understood as an example of the utility model and do not limit the scope of protection of the utility model. It will be apparent to those skilled in the art that modifications may be made in the foregoing embodiments without departing from the scope of the utility model.

Claims

1. A neuroendoscopic assembly comprising a distal assembly (40) constituting a distal end section of the neuroendoscopic assembly and configured for imaging and/or illumination, characterized in that the neuroendoscopic assembly (10) comprises:

a flexible main hose (13);

a flexible snake bone-like member (5) distal to the main flexible tube;

a flexible snake bone outer casing (6) sleeved on the snake bone-shaped component; and

a cord drive configured for driving the serpentine member to control bending of the serpentine member and comprising an actuation cord (9) connected with the serpentine member and kinematically coupled with the actuation member through the main hose, and an actuation member (18) for actuating the actuation cord.

2. A neuroendoscopic assembly according to claim 1, comprising a flexible working channel tube (8) extending inside the hollow serpentine member and the main flexible tube and to an insertion interface (17) configured for insertion of a handling instrument.

3. A neuroendoscopic assembly according to claim 1 or 2, comprising a cable (7) extending inside the hollow serpentine member and the main flexible tube and configured for signal transmission and/or feeding of the distal assembly.

4. An neuroendoscopic assembly according to claim 1 or 2, wherein the transmission cord is two steel cords, one of which is configured for manipulating the serpentine member in one bending direction and the other of which is configured for manipulating the serpentine member in the other opposite bending direction.

5. A neuroendoscopic assembly according to claim 4, wherein the snake bone shaped member has two axially extending receiving grooves (31) in its outer circumference, each receiving one wire rope.

6. The neuroendoscopic assembly of claim 1 or 2, comprising:

a first sleeve joint (11a) with the proximal end of the snake bone member abutting the distal end of the first sleeve joint, the main hose being sleeved on the first sleeve joint with its distal end; and

a second sleeve joint (11b) which is fitted over the abutting region of the snake bone member and the first sleeve joint and fixes the snake bone member and the first sleeve joint to each other, the snake bone outer sleeve being fitted with its proximal end over the second sleeve joint.

7. An neuroendoscopic assembly according to claim 6, wherein the proximal end of the serpentine member is connected with the distal end of the first sleeve joint in a form-fitting manner in circumferential direction.

8. The neuroendoscopic assembly of claim 6, wherein a distal end of said main hose is stopped by a proximal end of a second cannula joint and collides with a proximal end of a snake overtube.

9. An neuro-endoscope assembly according to claim 6, characterized in that the transmission cord is a steel cord and is provided with a cord sheath (12) whose distal end is fixed on the first socket joint.

10. A neuroendoscopic assembly according to claim 1, wherein the distal assembly comprises a camera module (1), a light source (2), which is fixed to the camera module or the head mount, an at least partially transparent head mount (3), on which the camera module is fixed, and a head end overtube (4), which is distally sleeved on the head mount and proximally sleeved on the snake bone overtube.

11. A neuro-endoscope assembly according to claim 2, characterized in that the distal assembly comprises a camera module, a light source, an at least partially transparent head end mount, and a head end overtube, the light source being fixed to the camera module or the head end mount, the camera module being fixed to the head end mount, the head end overtube being distally sleeved on the head end mount and proximally sleeved on the snake bone overtube, the head end mount having a through hole for connection with the distal end of the working channel tube.

12. A neuroendoscopic assembly according to claim 3, having a housing in which an adapter plate (24) is fixed, the cable being electrically connected via the adapter plate with a connection cable leading out of the housing and having a connector (27).

13. A neuroendoscopic assembly according to claim 4, having a housing in which the wheel (19) is rotatably supported, a wheel wire rope (21) wound around the wheel, the wheel wire ropes being connected to one wire rope at both ends, respectively, the wheel being provided with an operating handle outside the housing.

14. A neuroendoscopic assembly according to claim 12 or 13, wherein the housing comprises a distal first housing component (15) and a proximal second housing component (16) connected to each other.

15. The neuroendoscopic assembly of claim 2, wherein the neuroendoscopic assembly has at least one of the following features:

the outer diameter of the main hose is less than or equal to 6 mm;

the inner diameter of the working channel tube is within the range of 1-4 mm;

the length of the rod part of the neuroendoscopy component is more than or equal to 300 mm;

the length of the distal assembly is less than or equal to 10 mm;

the length of the snake bone-shaped component is less than or equal to 65 mm;

the curvature radius of the snake bone-shaped component is less than or equal to 12 mm;

starting from a straight-line extension state, the manipulation angle of the snake-bone-shaped member in one direction is more than or equal to 210 degrees, and the manipulation angle in the other direction is more than or equal to 140 degrees.

16. A neuroendoscopic apparatus comprising a host (20) and a display (30), characterized in that the neuroendoscopic apparatus further comprises a neuroendoscopic assembly according to any of claims 1 to 15, the neuroendoscopic assembly being coupled with the host.

17. The neuroendoscopic apparatus of claim 16, wherein the neuroendoscopic apparatus has a timer configured to time an operating time of the neuroendoscopic assembly and to decouple the neuroendoscopic assembly from the host computer after a predetermined time threshold is reached.

18. The neuroendoscopic apparatus of claim 16, wherein the neuroendoscopic apparatus has a counter configured to count the coupling of the neuroendoscopic assembly to the host machine and disconnect the coupling of the neuroendoscopic assembly to the host machine after a predetermined threshold number of times is reached.