EP3658002A1

EP3658002A1 - Control element for an endoscopic apparatus, and endoscopic apparatus comprising a control element of this kind

Info

Publication number: EP3658002A1
Application number: EP18752839.3A
Authority: EP
Inventors: Anh Minh Do
Original assignee: Hoya Corp
Current assignee: Hoya Corp
Priority date: 2017-07-25
Filing date: 2018-07-24
Publication date: 2020-06-03
Also published as: WO2019021052A1; JP2020528300A; US20210000328A1; US11497386B2

Abstract

The invention relates to a control element (100) for an endoscopic apparatus (A) comprising a holder (1); at least one control wire (2), movable to and fro in the wire longitudinal direction, for control purposes on the endoscopic apparatus (A); a control wire pull element (3) guided in the holder (1), wherein the control wire (2) is mounted in the control wire pull element (3); and a displacement force application means (4), which is supported on the holder (1) and by means of which the control wire pull element (3) is movable relative to the holder (1) so as to finely adjust the control wire (2). The invention also relates to a control element (200) for an endoscopic device (A) comprising a housing element (1000) having a guide (1100); at least one control wire (2000) for control purposes in the endoscopic apparatus (A); a lever element (3000) displaceable on the guide (1100) of the housing element (1000) in the longitudinal direction of the housing element (1000), at least one control wire (2000) being anchored on said lever element. In the lever element (3000), the anchoring site (3300) of the control wire (2000) is eccentric relative to the path of displacement of the lever element (3000) on the guide (1100) of the housing element (1000).

Description

CONTROL ELEMENT FOR AN ENDOSCOPIC DEVICE AND ENDOSCOPIC DEVICE WITH SUCH A CONTROL ELEMENT

WO 82847

description

The present invention relates to a control for an endoscopic device and further to an endoscopic device having such a control.

More specifically, the present invention relates to a control having a holder and at least one control wire reciprocable in the holder in the wire longitudinal direction for control purposes on the endoscopic device.

Such a control is applicable to a variety of endoscopic devices in which a control wire is reciprocated in the wire longitudinal direction.

For example, such a control is applied to a flexible endoscope having a bend portion, wherein at the distal end of the bend portion a control wire is anchored such that the anchor location is spaced from the centerline of the endoscope. The control wire passes through the bending section to a control disposed on the proximal side of the endoscope. The control is thus actuated from the proximal side. By operating the control element, the control wire is tensioned, whereby the bending section is bent.

In practice, the most accurate bending of the bending section is desired. That is, the user should be able to achieve by pressing the control as precisely as possible the desired bending of the bending section.

The object of the invention is therefore to provide a control for an endoscopic device and an endoscopic device with such a control, by means of a simple operation, a precise bending of the bending section is performed. In a first aspect, this object is achieved by a control having the features of claim 1.

With regard to the endoscopic device, the object is achieved by an endoscopic device having the features of claim 11.

Advantageous developments are the subject of the dependent claims.

In the first aspect, the control for an endoscopic device has a holder; at least one in the wire longitudinal direction movable forth and forth control wire for control purposes on the endoscopic device; a Steuerdrahtzugelement guided in the holder, wherein in the Steuerdrahtzugelement the control wire is mounted; and a slide force applying means supported on the bracket, by which the control wire puller is movable relative to the bracket to effect a fine adjustment of the control wire.

By the Verschiebekraftaufbringeinrichtung the Steuerdrahtzug element can be moved relative to the holder. Thus, the control wire stored in the Steuerdrahtzugelement can be targeted finely controlled by simple operation of Steuerdrahtzugelementes.

The holder may comprise a rail, the control wire traction element may have a groove extending in the longitudinal direction of the Steuerdrahtzugelementes, and by the engagement of the rail in the groove, the Steuerdrahtzugelement be slidable along the holder. By shifting the Steuerdrahtzugelementes along the holder of the control wire can be moved directly in its longitudinal direction.

The Verschiebekraftaufbringeinrichtung may be formed as a steering wheel with an internal thread, wherein the internal thread of the steering wheel is in threaded engagement with an external thread of the Steuerdrahtzugelementes so that the Steuerdrahtzugelement is movable relative to the holder. This provides a simple and direct power transmission from the steering wheel to the control wire realized realized. By taking place on the steering wheel rotational movement a displacement movement of the control wire is realized. A transmission ratio of the applied rotary motion on the steering wheel to the resulting displacement of the control wire is set in this construction in a simple manner. A particularly advantageous fine adjustment of the displacement of the control wire is made possible.

The steering wheel may have a knurling on the outer peripheral surface. This makes the operation of the steering wheel easy and easy. Turning a knurled wheel is familiar to the user. The knurling can be moved with one finger and held tight at the same time. An accidental misoperation can be restricted.

The displacement force applying device can be designed as an electric motor or as a piezoelement. As a result, a motor adjustment of the displacement of the control wire can be effected. An even more precise fine adjustment of the displacement of the control wire is made possible.

The Steuerdrahtzugelement may be formed as a screw with a cavity, wherein in the cavity a control wire nipple for the at least one control wire is mounted. The control wire can be easily disassembled.

On the proximal side of the holder may be formed an eyelet into which a finger or thumb is insertable. As a result, the user can safely grasp the holder and, by engaging the thumb and a finger on the eyelet and the steering wheel, move the control wire back and forth in a targeted and controlled manner.

A proximal end of the at least one control wire may be mounted in the control wire pull element.

The control may include an angled wire guide member on which the control wire is guided to the control to change direction. Thus, the control extends from an endoscope to which it is attached connected, gone. This allows the user to safely grasp the holder without interfering with other elements, such as an endoscope.

The endoscopic device is equipped with a control described above.

The endoscopic device may be a flexible endoscope.

Alternatively, the endoscopic device may be a rigid endoscope.

In any type of endoscope that uses a control wire for controlling an element to be controlled, the control element according to the invention can be used.

In a second aspect, the object is achieved by a control having the features of claim 12.

With regard to the endoscopic device, the object is achieved by an endoscopic device having the features of claim 22.

Advantageous developments are the subject of the dependent claims.

In the second aspect, the control for an endoscopic device has a housing member with a guide; at least one control wire for control purposes in the endoscopic device; and a lever element displaceable on the guide of the housing element in the longitudinal direction of the housing element, to which the at least one control wire is anchored; wherein in the lever element of the anchoring point of the control wire is eccentric to the displacement of the lever member to the guide of the housing element.

Thus, a control is provided which can draw the control wire targeted in the longitudinal direction of the housing member. A very precise and fine tensioning of the control wire is made possible. The lever element may be pivotable relative to the housing element.

The lever element may be rotatable relative to the housing element about a pivot point which lies on the displacement path of the lever element on the guide of the housing element.

In this case, a control is provided, which can not only selectively draw the control wire in the longitudinal direction of the housing element but can also further tension by a pivoting movement of the lever element. An even more precise fine control when tensioning the control wire is achieved.

The lever element can have two anchoring locations for one control wire each, and the two anchoring locations can be spaced apart from one another at the same distance from the displacement path of the lever element on the guide of the housing element. Thus, two control wires can be simultaneously tensioned or relieved by a single movement of the lever member. The strength of the tension of the one wire and the strength of the relieving of the other wire are the same here.

The lever element can have two anchoring locations for one control wire each, and the two anchoring locations can be spaced apart from one another at an unequal distance from the displacement path of the lever element on the guide of the housing element. Thus, two control wires can be simultaneously tensioned or relieved by a single movement of the lever member. The strength of the tension of the one wire and the strength of the relieving of the other wire are different.

The lever member may have a ring portion at an end portion of the lever member. Thereby, the user can securely grasp the end portion of the lever member and reciprocate the control wire selectively and controlled by inserting a finger in the ring portion. The ring portion may be disposed adjacent to the anchoring location of the control wire. As a result, the size of the entire control is kept small.

A ring portion may be disposed on the housing member at an end portion of the housing member located on the opposite side of the housing member for connection to the endoscopic device. The user can safely hold the housing element by inserting the thumb into this ring section.

The lever member may extend perpendicular to the extension of the housing member, and the fulcrum of the lever member may be disposed in the middle of the lever member with respect to the longitudinal direction of the lever member. As a result, the user is provided with a clear and easy-to-use control element that can finely control the control wire or the control wires in a versatile manner.

The pivot point of the lever element can be arranged at the center of gravity of the lever element.

The endoscopic device is equipped with a control described above.

The endoscopic device may be a flexible endoscope.

Alternatively, the endoscopic device may be a rigid endoscope.

In any type of endoscope that uses a control wire for controlling an element to be controlled, the control element according to the invention can be used. The above-explained aspects of the present invention can be suitably combined.

Brief description of the drawing

Fig. 1 shows a schematic perspective view of a connected to an endoscope control of an embodiment of the present invention.

FIG. 2 shows a schematic perspective view of the control element of FIG. 1. FIG.

Fig. 3 shows a schematic perspective view from above of the control.

Fig. 4 shows a schematic perspective view from below of the Steue ^¬ relement.

Fig. 5 shows another schematic perspective view from below of the control.

Fig. 6 shows a schematic perspective view of the control

Fig. 7 shows a schematic perspective view of the more detailed structure of the control.

Fig. 8 shows a schematic perspective view of a steering wheel of the control.

Fig. 9 shows a schematic perspective view of a Steuerdrahtzugelementes the control. 10 is a schematic perspective view of a control element connected to an endoscope of a second embodiment of the present invention.

FIG. 11 shows a schematic plan view of the control element 200 of FIG. 10.

FIG. 12 shows a schematic perspective view from below of the control element 200 from FIG. 10.

FIG. 13 shows a further schematic perspective view from below of the control element 200 from FIG. 10.

FIG. 14 shows another schematic perspective view from below of the control element 200 from FIG. 10.

FIG. 15 shows a schematic perspective view from above of the control element 200 from FIG. 10.

Hereinafter, the present invention will be described in detail with reference to the drawings by way of embodiments.

First embodiment

Hereinafter, a first embodiment of the present invention will be described with reference to Figs.

A control element 100 according to the invention is attached to an endoscope A e.g. Coupled via a screw B, which is provided at the point of connection of the control element 100 on the endoscope A.

The control element 100 serves to tension and relieve a control wire 2 in the wire longitudinal direction in order to control a working element which is provided on the distal side of the control wire 2. By way of example only, the control element 100 may be applied to a flexible endoscope A having a bending section. Here, at the distal end of the bending section, the control wire 2 is anchored so that the anchoring site is spaced from the center line of the endoscope tube. The control wire 2 passes through the bending section up to the control element 100 arranged on the proximal side of the endoscope A. The control element 100 is thus actuated from the proximal side. By operating the control element 100, the control wire 2 can be tensioned, whereby the bending portion is bent.

The detailed structure and function of the control element 100 will be described below.

The control element 100 has a housing which acts as a holder 1. From the terminal B on the endoscope A, a wire guide element 6 extends away from the endoscope A in a proximal direction. The wire guide element 6 is formed as a tube. In the wire guide element 6, the control wire 2 is guided. The wire guide element 6 has at a suitable location a wire outlet opening on which the control wire 2, the wire guide element 6, for example, laterally or alternatively (not shown) can leave in the axial direction of the wire guide element 6. In the region of the wire outlet opening, a connection element 10 of the holder 1 surrounds the wire guide element 6. The connection element 10 is formed on the holder 1 and serves for the suitable fastening of the holder 1 to the wire guide element 6. The connection element 10 can be detachable from the wire guide element 6, around the holder 1 to remove from the wire guide element 6 if necessary. The holder 1 has a longitudinal extent. The connecting element 10 is formed so that the control wire 2 can pass from the wire ^¬ outlet opening of the wire guide element 6 in the direction of the longitudinal extension of the holder 1.

The wire guide member 6 acts as a spacer to adequately space the control member 100 from the endoscope A. As a result, the operability of the control element 100 can be improved because the control element ment 100 can be accessed more easily, without elements of the endoscope A are in the way.

The control wire 2 runs in the interior of the wire guide element 6 in the proximal direction to the holder 1 so that it changes its direction. As a result, the wire guide element 6 acts as an angled wire guide element, on which the control wire 2 is guided to the holder 1 so that it changes its direction.

An adapter D can be provided on the end of the wire guide element 6 opposite the connection B. On the adapter D further devices applicable to the endoscope A can be connected as required, e.g. a baby scope, a micro-tool connection, a rinsing connection for rinsing water, a suction connection for aspirating liquids, etc.

The connection element 10 is arranged between the connection B and the adapter D.

The holder 1 forms an axisymmetric frame element, as shown in Fig. 3 and Fig. 7. More precisely, the holder 1 is mirror-symmetrical about its longitudinal extension axis. From the connection element 10, two parallel first axial struts 12 extend in the axial direction of the holder 1. At the end of the axial struts 12 opposite from the connection element 10, respective first radial struts 13 extend at right angles away from the longitudinal axis of the holder 1. At the opposite end of the first radial struts 13 from the longitudinal axis of the support 1, respective second axial struts 14 extend parallel to the longitudinal axis of the support 1. At the opposite end of the second axial struts 14 from the first radial struts 13, respective second radial struts 15 extend below right angle to the longitudinal axis of the bracket 1 back. At the opposite end of the second axial struts 14 of the second radial struts 15, respective axial end struts 16 extend parallel to the longitudinal axis of the holder 1. At the opposite side to the second radial struts 15 of the axial end struts 16, an eyelet 5 is provided. The holder 1 may be made of plastic or metal.

On the side facing the central axis or longitudinal axis side of the first axial struts 12 each have a rail 11 is provided, see Fig. 7. The rails 11 of the two first axial struts 12 are parallel to each other and facing each other.

The rails 11 guide a control wire traction element 3. The control wire traction element 3 is shown more clearly in FIG. The Steuerdrahtzugelement 3 is a cylindrical member having two parallel grooves 31 which are formed in the longitudinal direction of the Steuerdrahtzugelementes 3 on the outer periphery of the Steuerdrahtzugelementes 3 so that they are open in opposite directions. The Steuerdrahtzugelement 3 is guided through the first axial struts 12, that in each case one of the grooves 31 slides along one of the rails 11.

On the outer circumference of Steuerdrahtzugelementes 3, an external thread 32 is also provided. The Steuerdrahtzugelement 3 is hollow inside and has on the distal end side of a central hole 33. At the proximal end side a shoulder ring 34 is provided. The Steuerdrahtzugelement 3 is thus formed as a screw with a cavity. In the inner cavity of Steuerdrahtzugelementes 3, a control wire nipple for the control wire 2 is mounted so that the control wire 2 passes through the central hole 33 in the distal direction. The control wire nipple forms the proximal end of the control wire 2.

The control wire 2 thus extends from the wire outlet opening of the wire guide element 6 in the inner region of the Steuerdrahtzugelementes 3 and is anchored there.

The control wire traction element 3 is embedded in a relatively displaceable manner in a displacement force application device in the form of a steering wheel 4.

The steering wheel 4 is shown in Fig. 8 and is formed as a disk-like wheel. The steering wheel 4 has a central through hole in its inner circumference an internal thread 41 is formed. The internal thread 41 is in threaded engagement with the external thread 32 of the Steuerdrahtzugelementes 3. In other words, the Steuerdrahtzugelement 3 (screw) is screwed into the steering wheel 4. The Steuerdrahtzugelement 3 can be screwed into the steering wheel 4 until the front ie the distal surface of the shoulder ring 34 abuts the proximal end side of the Steuerdrahtzugelementes 3 on the proximal surface of the steering wheel 4.

The steering wheel 4 has on its inner circumference a knurling 42 of depressions and elevations, which allows easy gripping and pressing (turning) of the steering wheel 4.

The steering wheel 4 is positioned in the retaining element 1 in the free space resulting from the interior, which is bounded by the first radial struts 13, the second axial struts 14 and the second radial struts 15, see Figures 2 and 3. Dabei is the front side ie the distal side of the steering wheel 4 on the proximal side of the first radial struts 13 at.

On the holding element 1 protrudes at the region of the inner ends of the axial end struts 16, a distal projection 17 in the interior, which is bounded by the first radial struts 13, the second axial struts 14 and the second radial struts 15, in the distal direction. The distal projection 17 projects against the steering wheel 4 built into the retaining element 1. On the distal projection 17, a spring element 7 is placed, which extends in the distal direction to the steering wheel 4. In the exemplary embodiment, the proximal end region of the control wire pull element 3 has a proximal projection 35 extending in the proximal direction. The proximal projection 35 sits on the shoulder ring 34. The proximal projection 35 accommodates the distal end of the spring element 7. The spring element 7 is thus inserted between the proximal projection 35 and the distal projection 17 with a bias voltage. In other words, the spring element 7 biases the assembly of steering wheel 4 and control wire tension element 3 in the distal direction. On the proximal side of the holding element 1, a ring element is formed as an eyelet 5 in the region of the proximal ends of the axial end struts 16. The eyelet 5 is held by the axial end struts 16. The eyelet 5 protrudes from the holding element 1 in the proximal direction. The inner diameter of the eyelet 5 has a size that allows insertion of a finger or thumb of a user.

function

The user can insert a finger or thumb into the eyelet 5. Thereby, the holding member 1 of the control 100 is securely held. Another finger (or thumb, if it is free) can be placed on the edge 42 of the steering wheel 4 and the steering wheel 4 rotated about its axis.

In order to pull the control wire 2 in the proximal direction, the steering wheel 4 is rotated so that the control wire traction element 3 moves in the proximal direction. The Steuerdrahtzugelement 3 is quasi "screwed" in the steering wheel 4.

Since the steering wheel 4 is biased by the control wire pulling element 3 in the distal direction by means of the spring element 7, the Steuerdrahtzugelement 3 shifts relative to the steering wheel 4 in the proximal direction and the steering wheel 4 continues to abut the struts 13. Thus, the control wire traction element 3 moves guided on the rails 11 in the distal direction. Thereby, the control wire 2 is pulled in the proximal direction.

The rotational movement of the steering wheel 4 allows a very finely controllable longitudinal direction movement of the control wire. 2

Other alternatives

In the exemplary embodiment, the displacement force application device is designed as a steering wheel 4 with an internal thread 41. In an alternative, the displacement force applying device may be designed as an electric motor or as a piezoelectric element. The electric motor or the piezoelectric element are mounted in the holder 1 and mechanically connected to the Steuerdrahtzugelement 3 to apply a rotational force to the Steuerdrahtzugelement 3. The control of the electric motor or the piezo element may be a fine control, in which an extremely slight movement of the control wire 2 in the wire longitudinal direction can be generated. Thus, a particularly sensitive fine control is possible.

In the exemplary embodiment, the control element 100 is coupled via a screw B to the endoscope A. The invention is not limited thereto. Any coupling of the control element 100 to the endoscope A may be used, such as e.g. a plug-in connection, a luer-jack connection etc.

In the exemplary embodiment, the wire guide element 6 extends away from the endoscope A in the proximal direction. In an alternative, the wire guide element 6 may extend away from the endoscope A in the distal direction, if this is advantageous for certain applications.

The wire guide member 6 may be omitted. If the wire guide element 6 is dispensed with, the control element 100 can be arranged closer to the endoscope A, which ensures a small size.

The adapter D can be omitted.

Second embodiment

Hereinafter, a second embodiment of the present invention will be described with reference to Figs.

An inventive control element 200 is coupled to an endoscope A, for example via a connection element B with a screw connection which is provided at the connection location of the control element 200 on the endoscope A. The point of attachment of the control element 200 to the endoscope A can be as shown in FIG. are on the control body of the endoscope A, but is not limited thereto.

The control member 200 serves to tension and relieve a control wire 2000 in the wire longitudinal direction to control a working member provided on the distal side of the control wire 2000.

By way of example only, the control 200 may be applied to a flexible endoscope A having a bend portion. Here, at the distal end of the bending section, the control wire 2000 is anchored so that the anchoring site is spaced from the center line of the endoscope tube. The control wire 2000 passes through the bending section up to the control element 200 arranged on the proximal side of the endoscope A. The bending section is thus actuated by the control element 200 from the proximal side. By operating the control element 200, the control wire 2000 can be tensioned, whereby the bending portion is bent.

The detailed structure and function of the control element 200 will be described below.

The control element 200 has a housing element 1000. From the connection element B on the endoscope A, the housing element 1000 extends in a direction pointing towards the user. In other words, the housing member 1000 extends away from the connector B in a proximal direction. The connection element B is designed as a tube. In the connection element B, the control wire 2000 is guided. The connection element B has at a suitable location a wire outlet opening at which the control wire 2000 can leave the connection element B laterally or alternatively (not shown) in the axial direction of the connection element B towards the housing element 1000 (in the drawings the wire exit opening is not shown). In the region of the wire outlet opening, the control element 200 extends away from the connection element B at an approximately right angle to the tube of the connection element B. The connection element B also acts as a spacer to suitably space the control element 200 from the endoscope A. As a result, the operability of the control element 200 can be improved because the control element 200 can be accessed more easily without interfering elements of the endoscope A.

The control wire 2000 runs in the interior of the connecting element B in the proximal direction to the control element 200 in such a way that it changes its direction, ie. angling. As a result, the connecting element B with the wire outlet opening acts as an angled guide, on which the control wire 2000 is guided to the control element 200 in such a way that it changes its direction.

An adapter D can be provided at the end of the connecting element B opposite the connection B, see FIG. 10. If required, further devices applicable to the endoscope A can be connected to the adapter D, such as e.g. a baby scope, a micro-tool connection, a rinsing connection for rinsing water, a suction connection for aspirating liquids, etc.

The housing element 1000 of the control element 200 forms an axially symmetrical frame element, as shown in FIGS. 11 to 15. More specifically, the housing member 1000 is mirror symmetrical about its longitudinal axis. The housing element 1000 is formed by two parallel axial struts which extend from the area of the connecting element B in the proximal direction and form a space between them at a predetermined distance. On the proximal side of the two parallel axial struts of the housing member 1000, a ring portion 1700 is formed as an eyelet.

As shown in Fig. 12, each of the two parallel axial struts of the housing member 1000 is provided so that an opening formed in the longitudinal direction is formed as a guide 1100. The two guides 1100 extend

are of the region of the connecting element B in the proximal direction to the ring portion 1700 and are identical and parallel to each other. The guide 1100 serves to guide a lever element 3000 described below. The respective inner surfaces of the two parallel axial struts of the housing ^¬ lements 1000 form surfaces for guiding a pivot point element of the below-described lever element 3000th

The housing member 1000 may be made of plastic or metal.

The two guides 1100 guide a lever element 3000, which acts as Steuerdrahtzugelement. The lever member 3000 is a flat member in the form of a number eight. The thickness (height in the up and down direction) of the lever member 3000 is set so that the lever member 3000 in the guide 1100 can slide in the longitudinal direction of the housing member 1000. For example, For example, the thickness (height in the up and down direction) of the lever member 3000 may be slightly smaller than the width (height in the up and down direction) of the guide 1100.

The two openings of the eight of the lever member 3000 each form a ring portion 3700. In the central region of the lever member 3000, a respective fulcrum member 3500 projecting on both sides (up and down) is formed in the shape of a cylindrical pin. The outer diameter of this fulcrum member 3500 is sized so that the fulcrum member 3500 can slide in the space between the respective inner surfaces of the two parallel axial struts of the housing member 1000 in the longitudinal direction of the housing member 1000. For example, For example, the outer diameter of the fulcrum element 3500 may be slightly smaller than the distance between the respective inner surfaces of the two parallel axial struts of the housing member 1000.

The control wire 2000 extends from the wire outlet opening of the connection element B in the inner region of the housing member 1000 to the lever member 3000 and is anchored to the lever member 3000.

More specifically, two control wires 2000 extend to an anchoring location 3300 on the lever member 3000. The anchoring location 3300 of the control wire is provided eccentrically to the displacement of the lever member 3000 on the guide 1100 of the housing member 1000.

The anchoring location 3300 on the lever element 3000 is not limited to a specific shape. The respective anchoring location 3300 is formed on the lever element 3000, for example in the form of a protruding to the upper side pin member, as shown in the drawings. The pin member may be formed by molding a groove surrounding the pin member (e.g., by laser).

As shown in Figure 11, a first control wire Sl extends proximally to a first anchoring location 3300 (pin member shown in Figure 11 above). In the example of the pin element, the first control wire Sl is once wound around the axis of the pin element and leaves the region of the anchor point 3300 inserted in a small groove 3400, to be separated at the end of the groove 3400. This allows the effective length of the control wire, i. the length up to the anchoring point 3300 can be freely selected.

Similarly, a second control wire S2 extends proximally to a second anchoring location 3300 (pin member shown in Fig. 11 below). In the said example, the second control wire S2 is wound once around the axis of the second pin element and leaves the region of the anchoring location 3300 inserted in a small groove 3400 in order to be cut off at the end of the groove 3400.

After the respective control wire 2000 (S1 or S2) has been inserted, the anchoring location 3300 and the groove 3400 can be sealed by a suitable sealing means. After the sealing agent has hardened, the respective proximal end of the control wire 2000 is concealed in the anchoring location 3300 and the groove 3400.

In the housing element 1000 protrudes on the outer circumference of the annular portion 1700 between the two axial struts of the housing element 1000 in distal Rieh- tion a projection 1600 in the interior of the housing member 1000 inside, see Figure 11 and 12th

On the distal side of the central region of the lever element 3000, a lever load element 1500 is provided. The lever-loading element 1500 has, similar to the fulcrum element 3500, a cylindrical pin element protruding on both sides (top and bottom). The outer diameter of this pin member is dimensioned so that the pin member in the space between the respective inner surfaces of the two parallel axial struts of the housing member 1000 in the longitudinal direction of the housing member 1000 can slide. For example, the outer diameter of the pin member may be slightly smaller than the distance between the respective inner surfaces of the two parallel axial struts of the housing member 1000. At the lever load element 1500 protrudes between the two axial struts of the housing member 1000 in the proximal direction, a projection into the interior of the housing element 1000 inside.

Between the projection of the lever load element 1500 and the projection 1600, a spring 7000 is arranged. The spring 7000 biases the lever member 3000 in front so that when pulling the lever member 3 to the Ringab ^¬ section 1700, the spring 7000 is compressed out. The spring element 7000 is thus inserted between the lever element 3000 and the ring section 1700. In other words, the spring member 7000 biases the lever member 3000 in the distal direction.

The length and stiffness of the spring 7000 are selected so that in the rest position shown in FIGS. 11 and 12, the lever member 3000 is at a distal position in the housing member 1000 and can be pulled in the proximal direction to the ring portion 1700.

The inner diameter of the ring portion 1700 has a size that allows insertion of a finger, ideally the thumb of a user. The inner diameter of the respective ring portion 3700 has a size that a Insertion of a finger, ideally the forefinger and the middle finger of a user allowed.

function

The user can insert the thumb into the ring portion 1700. Thereby, the housing member 1000 of the control 200 is securely held. The user's index finger is inserted into one ring section 3700, and the user's middle finger is inserted into the other ring section 3700.

To pull the two control wires 2000 (Sl and S2) in the proximal direction, the lever member 3000 is pulled by the index finger and the middle finger toward the ring portion 1700. In this drawing operation is pulled against the spring force of the spring 7000. Thus, the pulling operation of the control wires 2000 (S1 and S2) is performed with increasing resistance of the spring 7000. Thus, the user has the feeling of tightening the control wires 2000 (S1 and S2) more as the spring resistance increases.

Furthermore, by turning the lever element 300 about the fulcrum element 3500, the user can purposefully tension one of the two control wires 2000 (S1 and S2) and relieve the other of the two control wires 2000 (S1 and S2).

Both functions are realized by the same control 200.

The rotational movement about the fulcrum element 3500 in the center of the lever element 3000 combined with the possibility of longitudinally pulling the lever element 3000 allows a very finely controllable targeted tensioning or unloading movement of a selected control wire 2000.

Other alternatives In the exemplary embodiment, the lever element 3000 in the housing element 1000 of the control element 200 is always freely movable and is arbitrarily moved by the user.

In an alternative, the fulcrum member 3500 may have a centrally-threaded, central bore or blind bore. In this hole a suitable screw can be screwed, the head overlaps with the respective surface of the respective axial strut of the housing element 1000. By tightening this screw, the head can be clamped to the axial struts of the housing member 1000, whereby the lever member 3000 can be locked in a specific position selected by the user in the longitudinal direction of the housing member 1000. Thereby, both the lever member 3000 can be locked at a specific location position in the longitudinal direction of the housing member 1000 and rotated at a specific angle rotated about the fulcrum member 3500 relative to the housing member 1000.

In the embodiment, the control element 200 is coupled via a screw connection B to the endoscope A. The invention is not limited thereto. Any coupling of the control element 200 to the endoscope A may be used, such as e.g. a plug-in connection, a luer-jack connection etc.

In the embodiment, the anchoring site 3300 is formed on the lever member 3000 in the form of a protruding pin member projecting from a recess so that the control wire is wound between the outer peripheral surface of the protruding pin member and the inner peripheral surface of the recess around the pin member and then the proximal end of the pin Control wire is disconnected. Alternatively, the recess may be formed without a projecting pin member and have an inner peripheral shape corresponding to the outer peripheral shape of a wire nipple. The proximal end of the control wire may be provided with the wire nipple. The wire nipple is inserted in the said recess. In this alternative, the effective length of the control wire, ie, the length to anchor location 3300, is predefined. In the exemplary embodiment, the connecting element B extends away from the endoscope A in the proximal direction (obliquely upward in FIG. 10). In an alternative, the wire guide member 6000 may extend away from the endoscope A in the distal direction (obliquely downward in Fig. 10), as far as this is advantageous for certain applications.

The connection element B can be shortened. When the terminal B is shortened, the control 200 can be placed closer to the endoscope A, which provides a small size.

The adapter D can be omitted.

One of the two control wires 2000 (Sl and S2) can be omitted. In this alternative, the proximal end of a still existing control wire 2 is mounted eccentrically to the displacement of the lever element 3.

As in the exemplary embodiment, the lever element 3000 can have two anchoring locations 3300 for one control wire each, but the two anchoring locations 3300 are spaced at an unequal distance from the displacement path of the lever element 3000 on the guide 1100 of the housing element 1000. Thus, the two control wires 2000 (Sl and S2) can be simultaneously loaded by a single movement of the lever member 3000, wherein the strength of the tensioning of the one wire and the strength of the unloading of the other wire are different.

The invention is advantageously applicable to a gastroscope, a colonoscope or a similar endoscope. The principle of the invention can also be applied to any other type of endoscope. Although the invention is particularly well suited for flexible endoscopes, it can also be used with rigid endoscopes.

LIST OF REFERENCE NUMBERS

1 bracket control wire

Steuerdrahtzugelement

Displacement applying device, steering wheel eyelet

Wire guide element

spring element

10 connection element

11 rail

12 first axial struts

13 first radial struts

14 second axial struts

15 second radial struts

16 axial end struts

17 distal projection

31 groove

32 external thread

33 holes

34 heel ring

35 proximal projection

41 internal thread

42 knurling

100 control

A endoscope

B screw connection, connection at the endoscope

D adapter

200 control

1000 housing element

2000 control wire

3000 lever element

7000 spring element

1100 leadership

1500 lever load element

1600 advantage

1700 ring section, eyelet 3300 anchoring point of the control wire, pin element

3400 groove for proximal cable end

3500 fulcrum element

3700 ring section

Claims

claims

First control element (100) for an endoscopic device (A), with

a holder (1);

at least one control wire (2) movable in the wire longitudinal direction for control purposes on the endoscopic device (A);

a Steuerdrahtzugelement (3) guided in the holder (1), wherein in the Steuerdrahtzugelement (3) of the control wire (2) is mounted; and

a displacement force applying means (4) supported on the support (1), by which the control wire pulling member (3) is movable relative to the support (1) to effect a fine adjustment of the control wire (2).

The control (100) for an endoscopic device according to claim 1, wherein

the holder (1) has a rail (11),

the Steuerdrahtzugelement (3) has a groove (31) which extends in the longitudinal direction of the Steuerdrahtzugelementes (3), and

by the engagement of the rail (11) in the groove (31) the Steuerdrahtzug element (3) along the holder (1) is displaceable.

The control (100) for an endoscopic device according to claim 1 or 2, wherein

the displacement force application device (4) is formed as a steering wheel (4) with an internal thread (41), wherein the internal thread (41) of the steering wheel (4) with an external thread (32) of the Steuerdrahtzugelementes (3) in threaded engagement so that the Steuerdrahtzugelement ( 3) is movable relative to the holder (1).

4. control (100) for an endoscopic device according to claim 3, wherein

the steering wheel (4) has a knurling (42) on the outer peripheral surface.

5. control (100) for an endoscopic device according to claim 1 or 2, wherein

the Verschiebekraftaufbringeinrichtung (4) is designed as an electric motor or as a piezoelectric element.

6. control (100) for an endoscopic device according to one of claims 1 to 5, wherein

the Steuerdrahtzug element (3) is designed as a screw with a cavity, wherein in the cavity a control wire nipple for the at least one control wire (2) is mounted.

The control (100) for an endoscopic device according to any one of claims 1 to 6, wherein

on the proximal side of the holder (1) an eyelet (5) is formed, in which a finger or thumb is inserted.

8. control (100) for an endoscopic device according to one of claims 1 to 7, wherein

in the Steuerdrahtzugelement (3) a proximal end of the at least one control wire (2) is mounted.

9. control (100) for an endoscopic device according to one of claims 1 to 8, wherein

the control element (100) has an angled wire guide element (6) on which the control wire (2) is guided to the control element (100) so that it changes its direction.

The control (100) for an endoscopic device according to claim 1, wherein

the Steuerdrahtzug element (3) is designed as a screw with a cavity, wherein in this cavity of the control wire (2) is mounted, wherein the Steuerdrahtzugelement (3) has an external thread (32) with an internal thread (41) of the Verschiebekraftaufbringeinrichtung (4) in threaded engagement, and wherein the Steuerdrahtzugelement (3) has a groove (31) extending in Longitudinal direction of Steuerdrahtzugelementes (3), wherein by engagement of the holder (1) with the groove (31) the Steuerdrahtzug element (3) along the holder (1) is displaceable.

11. An endoscopic device (A) with a control element (100) according to one of claims 1 to 10.

12. control element (200) for an endoscopic device (A), with

a housing member (1000) having a guide (1100);

at least one control wire (2000) for control purposes in the endoscopic device (A);

a lever element (3000) displaceable on the guide (1100) of the housing element (1000) in the longitudinal direction of the housing element (1000), to which the at least one control wire (2000) is anchored;

wherein in the lever element (3000) the anchoring point (3300) of the control wire (2000) is eccentric to the displacement of the lever element (3000) on the guide (1100) of the housing element (1000).

The control (200) for an endoscopic device according to claim 12, wherein

the lever element (3000) is pivotable relative to the housing element (1000).

14. The control (200) for an endoscopic device according to claim 12 or 13, wherein

the lever element (3000) is rotatable relative to the housing element (1000) about a pivot point (3500) which lies on the displacement path of the lever element (3000) on the guide (1100) of the housing element (1000).

15. control (200) for an endoscopic device according to one of claims 12 to 14, wherein

the lever element (3000) has two anchoring locations (3300) for each one control wire (2000), and the two anchoring locations (3300) are spaced apart from one another at the same distance from the displacement path of the lever element (3000) on the guide (1100) of the housing element (1000).

16. The control (200) for an endoscopic device according to one of claims 12 to 14, wherein

the lever element (3000) has two anchoring locations (3300) for each one control wire (2000), and

the two anchoring locations (3300) are spaced apart from one another at an unequal distance from the displacement path of the lever element (3000) on the guide (1100) of the housing element (1000).

17. The control (200) for an endoscopic device according to one of claims 12 to 16, wherein

the lever member (3000) has a ring portion (3700) at an end portion of the lever member (3000).

18. control (200) for an endoscopic device according to claim 17, wherein

the ring portion (3700) is disposed adjacent to the anchoring location (3300) of the control wire (2000).

19. The control (200) for an endoscopic device according to one of claims 12 to 18, wherein

a ring portion (1700) is disposed on the case member (1000) at an end portion of the case member (1000) located at the side of the case member (1000) opposite to the endoscopic device (A).

The control (200) for an endoscopic device according to any one of claims 14 to 19, wherein

the lever element (3000) extends perpendicular to the extension of the housing element (1000), and the fulcrum (3500) of the lever member (3000) is located at the center of the lever member (3000) with respect to the longitudinal direction of the lever member (3000).

21. The control (200) for an endoscopic device according to one of claims 14 to 20, wherein

the pivot point (3500) of the lever element (3000) is arranged at the center of gravity of the lever element (3000).

22. An endoscopic device (A) with a control element (200) according to one of claims 12 to 21.