CN219001747U

CN219001747U - Surgical tool for assisting in implantation of ocular muscle nerve stimulator

Info

Publication number: CN219001747U
Application number: CN202221875431.9U
Authority: CN
Inventors: 王乐今; 丁琦; 王天放; 张旭斌; 王舵
Original assignee: Chaomu Technology Beijing Co ltd
Current assignee: Chaomu Technology Beijing Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2023-05-12
Anticipated expiration: 2032-07-19

Abstract

The utility model relates to the technical field of implantation of an eye muscle nerve stimulator, and provides a surgical tool for assisting in implantation of the eye muscle nerve stimulator, which comprises: a catheter having a hollow lumen adapted for passage of a stimulator; the puncture piece is detachably arranged at one end of the catheter; the handle is detachably arranged at one end of the catheter far away from the puncture piece. When the surgical tool for assisting in implanting the ocular muscle nerve stimulator is used, pressure is applied through the handle, the puncture part punctures skin, the catheter enters the skin along with the puncture part, then the puncture part penetrates out of the skin, the puncture parts at the two ends of the catheter and the handle are respectively taken down, and the catheter is independently remained under the skin to form a tunnel for the stimulator to enter. By the arrangement, the operation difficulty can be reduced, the formed wound is smaller, and the later recovery of a patient is facilitated.

Description

Surgical tool for assisting in implantation of ocular muscle nerve stimulator

Technical Field

The utility model relates to the technical field of implantation of an eye muscle nerve stimulator, in particular to a surgical tool for assisting in implantation of an eye muscle nerve stimulator.

Background

For congenital nystagmus treatment, the treatment may be performed by surgically implanting an ocular muscle neurostimulator, but surgical tools for assisting the implantation are currently lacking. In the prior art, a general tool is often adopted during implantation surgery, namely, long-edge scissors are used for making subcutaneous tunnels in skin tissues, then an infusion tube is penetrated, an electrode is introduced through a cavity of the infusion tube, and finally the infusion tube is pumped away to complete implantation. Because of lacking of professional matched operation tools, the implanted wound is larger, and the operation difficulty is higher.

Disclosure of Invention

Therefore, the technical problem to be solved by the utility model is that in the prior art, a general tool is often adopted during implantation operation, and the lack of a professional matched operation tool can lead to larger implantation wound and higher operation difficulty, so as to provide an operation tool for assisting the implantation of the ocular muscle nerve stimulator.

To solve the above technical problem, the present utility model provides a surgical tool for assisting in implantation of an ocular muscle neurostimulator, comprising: a catheter having a hollow lumen adapted for passage of a stimulator; the puncture piece is detachably arranged at one end of the catheter; the handle is detachably arranged at one end of the catheter far away from the puncture piece.

Optionally, the puncture element comprises a blade part and a first connecting part, and the first connecting part is connected with the catheter in a plugging way.

Optionally, the blade includes: the bottom is horizontally arranged on one side of the first connecting part, and one end of the bottom, which is far away from the first connecting part, is a tip; the guide part is integrally formed above the bottom, and the surface of the guide part extends upwards in an arc shape from the tip to one side of the first connecting part.

Optionally, the bottom is the rectangle setting, the bottom is kept away from the both ends angle of first connecting portion are tip and symmetric distribution in the guide part both sides.

Optionally, a limiting step is formed at the intersection of the blade portion and the first connecting portion, and is suitable for abutting against the catheter when the first connecting portion is inserted into the catheter.

Optionally, a first positioning protrusion is disposed on the surface of the first connecting portion, a first positioning hole is disposed on the pipe wall of the catheter, and when the first connecting portion is inserted into the catheter, the first positioning protrusion is clamped into the first positioning hole.

Optionally, the handle includes a second connection portion and a holding portion, and the second connection portion and the holding portion are disposed at a preset included angle.

Optionally, the holding part has a conical structure, and the diameter of the holding part gradually decreases along the direction approaching to the second connecting part.

Optionally, a second positioning protrusion is disposed on the surface of the second connection portion, and a second positioning hole is disposed on the pipe wall of the catheter, and when the second connection portion is inserted into the catheter, the second positioning protrusion is clamped into the second positioning hole.

Optionally, the surgical tool further comprises a bone grinding comparison template, wherein the shape of the bone grinding comparison template is matched with the shape of the stimulator; the clamping part is arranged on the plate surface of the bone grinding comparison template and is suitable for taking the bone grinding comparison template through the clamping part.

Optionally, the clamping part is plate-shaped structure, all be provided with the recess that is suitable for tweezers to press from both sides on the two face of clamping part.

Optionally, the bone grinding comparison template is made of stainless steel.

The technical scheme of the utility model has the following advantages:

when the surgical tool for assisting in implanting the ocular muscle nerve stimulator is used, pressure is applied through the handle, the puncture piece punctures skin, the skull can be closely attached through the shape design of the blade part, and the damage of the nerve stimulator caused by deformation due to adhesion of skin tissues and the skull is avoided. The catheter enters the skin along with the puncture part, then the puncture part penetrates out of the skin, the puncture parts at the two ends of the catheter and the handle are respectively taken down, and the catheter is independently remained under the skin to form a tunnel for the stimulator to enter. By the arrangement, the operation difficulty can be reduced, the formed wound is smaller, and the later recovery of a patient is facilitated.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a surgical tool according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a piercing member according to an embodiment of the present utility model;

FIG. 3 is a schematic longitudinal section of a piercing member according to an embodiment of the present utility model;

FIG. 4 is a projection profile of the bottom and guide portions on the same horizontal plane in an embodiment of the utility model;

FIG. 5 is a side view of a handle in a surgical tool according to an embodiment of the present utility model;

FIG. 6 is a side view of the holding portion and the second connecting portion with a preset angle of 120 degrees according to an embodiment of the present utility model;

FIG. 7 is a side view of a preset angle of 90 degrees between the grip portion and the second connecting portion according to an embodiment of the present utility model;

fig. 8 is a schematic structural view of a bone grinding and comparing template in a surgical tool according to an embodiment of the present utility model.

Reference numerals illustrate: 1. a conduit; 2. a handle; 3. a piercing member; 4. a first connection portion; 5. a blade section; 6. a limit step; 7. a grip portion; 8. a second connecting portion; 9. grinding the bone comparison template; 10. a clamping part; 11. a groove; 12. a first positioning protrusion; 13. a second positioning protrusion; 14. a bottom; 15. a guide part; 16. a tip.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical features of the different embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1, the present embodiment provides a surgical tool for assisting in implantation of an ocular muscle neurostimulator, comprising: catheter 1, piercing member 3 and handle 2. The catheter 1 is provided with a hollow inner cavity, the inner cavity of the catheter 1 is suitable for the stimulator to pass through, and the puncture member 3 and the handle 2 are respectively and detachably arranged at two ends of the catheter 1.

In the operation tool for assisting the implantation of the ocular muscle nerve stimulator in the embodiment, when the operation tool is used, pressure is applied through the handle 2, the puncture member 3 punctures the skin, the catheter 1 enters the skin together with the puncture member 3, then the puncture member 3 penetrates out of the skin, the puncture members 3 at two ends of the catheter 1 and the handle 2 are respectively taken down, and the catheter 1 is independently remained under the skin to form a tunnel for the stimulator to enter. By the arrangement, the operation difficulty can be reduced, the formed wound is smaller, and the later recovery of a patient is facilitated.

In this embodiment, the catheter 1 is a tube body with a circular or elliptical cross section, and the catheter 1, the puncture member 3 and the handle 2 are connected with the catheter 1 in a plugging manner, so that the puncture member 3 and the handle 2 can be conveniently removed from the catheter 1 after puncture.

Specifically, as shown in fig. 2 and 3, the puncture element 3 includes a blade portion 5 and a first connecting portion 4, the cross-sectional shape of the first connecting portion 4 is adapted to the cross-sectional shape of the catheter 1, and the outer diameter of the first connecting portion 4 is smaller than the inner diameter of the catheter 1, and the first connecting portion 4 is inserted into the catheter 1 in use.

The blade part 5 comprises a bottom 14 and a guide part 15, wherein the bottom 14 is horizontally arranged on one side of the first connecting part 4, the guide part 15 is integrally formed above the bottom 14, one end, far away from the first connecting part 4, of the bottom 14 is provided with a tip 16 for puncturing skin, and the surface of the guide part 15 is arranged in an arc-shaped upward extending way from the tip 16 to one side of the first connecting part 4. Therefore, the blade part 5 is in a streamline structure, after the tip 16 pierces the skin, the streamline surface structure of the guide part 15 enables the blade part 5 to gradually prop up the skin when entering the skin, and the guide pipe 1 is guided to enter the skin, so that the puncture is convenient, the operation difficulty is effectively reduced, and the operation of doctors is more convenient.

In this embodiment, as shown in fig. 4, the projection profile of the bottom 14 is rectangular on the same horizontal plane, one side of the projection profile of the guiding portion 15 near the tip is an arc, the middle point of the arc coincides with the middle point of the projection edge line of the bottom 14, and the rest of projection profile edges of the guiding portion 15 coincide with the projection profile of the bottom 14. Therefore, two end angles of the bottom far away from one side of the first connecting part 4 are arranged on the outer side of the guide part 15 to form tips 16, namely, the tips 16 are arranged in two and symmetrically distributed on two sides of the guide part 15, so that a doctor can conveniently perform skin puncturing operation under various angles or pose states, smoothly transition to the surface of the guide part 15 at any puncturing angle, and better guiding effect is achieved. Moreover, the blade part 5 can be tightly attached to the skull by the shape design, so that the damage of the nerve stimulator caused by deformation due to the adhesion of skin tissues and the skull is avoided.

As shown in fig. 2, a limiting step 6 is formed at the intersection of the blade part 5 and the first connecting part 4, and is suitable for abutting against the catheter 1 when the first connecting part 4 is inserted into the catheter 1, so as to prevent the blade part 5 from entering the catheter 1. And the radius of the edge formed by the intersection of the surface of the guide part 15 and the limit step 6 is consistent with the outer diameter of the catheter 1, so that the connection between the surface of the guide part 15 and the outer wall of the catheter 1 is smoother after the first connecting part 4 is inserted into the catheter 1. Meanwhile, the end face of the blade part 5 seals the opening of the catheter 1, so that foreign matters can be prevented from entering the catheter 1 through the blade part 5 in the puncturing process, and the cleanness in the catheter 1 can be maintained.

Further, referring to fig. 2, the surface of the first connecting portion 4 is provided with a first positioning protrusion 12, for example, the first positioning protrusion 12 may be in a cylindrical structure, and correspondingly, a first positioning hole adapted to the first positioning protrusion 12 is provided on the pipe wall of the catheter 1, for example, the first positioning hole may be a circular hole, and when the first connecting portion 4 is inserted into the catheter 1, the first positioning protrusion 12 is clamped into the first positioning hole. With this arrangement, the puncture element 3 can be prevented from falling off the catheter 1.

Specifically, as shown in fig. 5, 6 and 7, the handle 2 includes a second connecting portion 8 and a holding portion 7, where the second connecting portion 8 and the holding portion 7 are disposed at a preset included angle, and in this embodiment, the preset included angle ranges from 90 ° to 135 °, for example, as shown in fig. 6, the preset included angle may be 120 °; for example, as shown in fig. 7, the second connecting portion 8 and the holding portion 7 may have an L-shaped structure, where an angle between the second connecting portion 8 and the holding portion 7 is 90 °. So configured, it is more convenient to apply pressure to the penetrating member 3 via the handle 2. Of course, in other embodiments, the preset included angle may be set to any other angle according to the actual use situation.

The second connecting part 8 has the same structure as the first connecting part 4, the cross section shape of the second connecting part 8 is consistent with the cross section shape of the cavity of the catheter 1, and the second connecting part 8 is inserted into the catheter 1 to realize the detachable connection of the holding part 7 and the catheter 1.

In this embodiment, the holding portion 7 has a tapered structure, and the diameter of the holding portion 7 gradually decreases in a direction approaching the second connecting portion 8. The setting can improve and hold and experience the sense, is favorable to reducing the degree of difficulty of operation.

As an alternative embodiment, the holding part 7 may be further configured to have a cylindrical or elliptic cylindrical structure, or the outer surface of the holding part 7 may be configured to have a bionic surface structure adapted to the hands of the doctor, so as to improve the comfort level of holding during the operation of the doctor.

Further, the surface of the second connecting portion 8 is provided with a second positioning protrusion 13, for example, the second positioning protrusion 13 may be in a cylindrical structure, and correspondingly, a second positioning hole adapted to the second positioning protrusion 13 is also formed in the pipe wall of the catheter 1, for example, the second positioning hole may be a circular hole, and when the second connecting portion 8 is inserted into the catheter 1, the second positioning protrusion 13 is clamped into the second positioning hole. With this arrangement, the handle 2 can be prevented from falling off the catheter 1.

As an alternative embodiment, the puncture member 3 and the handle 2 may be detachably connected with the catheter 1 through a magnet adsorption structure, a threaded connection structure with smaller number of turns, a screw connection or an interference fit, and the connection structure between the puncture member 3 and the handle 2 and the catheter 1 may be consistent or inconsistent, so that the puncture member 3 and the handle 2 may be detached from the catheter 1.

Further, this a surgical tool for assisting implantation of eye muscle nerve stimulator still includes grinds bone comparison template 9, grinds bone comparison template 9's shape and the shape looks adaptation of stimulator, in the operation grinds bone in-process, will grind bone comparison template 9 and carry target skeleton department through pipe 1, grind the mounting groove on target skeleton according to the shape of grinds bone comparison template 9, and utilize grinds bone comparison template 9 and the mounting groove that grinds on the target skeleton to compare, make the mounting groove on the target skeleton and the shape of stimulator better match, the clearance after the stimulator is installed in the mounting groove is less, the stimulator is difficult for taking place to rock, can reduce the risk that later stage stimulator became invalid.

Specifically, referring to fig. 8, the actual shape and size of the bone plate 9 may be 1:1, in this embodiment, the bone grinding comparison template 9 is formed by splicing a circular plate and a rectangular plate, an obtuse angle is formed between the circular plate and the rectangular plate, and in other embodiments, the bone grinding comparison template 9 can make corresponding structural changes according to the shape difference of the stimulator.

The plate surface of the bone grinding comparison plate 9 is provided with a clamping portion 10, and the bone grinding comparison plate 9 is suitably taken out by the clamping portion 10. The clamping portion 10 has a plate-shaped structure, for example, the clamping portion 10 may be a semicircular plate, the clamping portion 10 and the bone grinding comparison template 9 may be integrally formed, and grooves 11 suitable for clamping with forceps are formed on two plate surfaces of the clamping portion 10. For example, the groove 11 may be a triangular groove 11, and tweezers may grip the bottom of the groove 11 to take the bone grinding comparison template 9. The device is convenient for doctors to operate, and reduces the risk of surgical infection.

In this embodiment, the bone grinding comparison module 9 is made of stainless steel, which is food-grade stainless steel, is easy to disinfect, and can effectively reduce the risk of infection.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims

1. A surgical tool for assisting in implantation of an ocular muscle neurostimulator, comprising:

a catheter (1) having a hollow lumen adapted for passage of a stimulator;

the puncture piece (3) is detachably arranged at one end of the catheter (1) and comprises a blade part (5) and a first connecting part (4), and the first connecting part (4) is connected with the catheter (1) in an inserting mode; the blade part (5) comprises a bottom part (14) and a guide part (15), the bottom part (14) is horizontally arranged on one side of the first connecting part (4), and one end of the bottom part (14) far away from the first connecting part (4) is a tip (16); the guide part (15) is integrally formed above the bottom part (14), and the surface of the guide part (15) extends upwards in an arc shape from the tip (16) to one side of the first connecting part (4);

the handle (2) is detachably arranged at one end of the catheter (1) away from the puncture piece (3).

2. Surgical tool for assisting the implantation of an ocular muscle neurostimulator according to claim 1, characterized in that the bottom (14) is rectangular in arrangement, the two end corners of the bottom (14) remote from the first connection (4) are both the tips (16) and symmetrically distributed on both sides of the guide (15).

3. Surgical tool for assisting the implantation of an ocular muscle neurostimulator according to claim 1, characterized in that the junction of the blade (5) and the first connection (4) forms a limit step (6) adapted to come into abutment with the catheter (1) when the first connection (4) is inserted into the catheter (1);

and/or, the surface of the first connecting part (4) is provided with a first positioning bulge (12), a first positioning hole is formed in the pipe wall of the catheter (1), and when the first connecting part (4) is inserted into the catheter (1), the first positioning bulge (12) is clamped into the first positioning hole.

4. Surgical tool for assisting the implantation of an ocular muscle neurostimulator according to claim 1, characterized in that the handle (2) comprises a second connection portion (8) and a grip portion (7), the second connection portion (8) being arranged at a preset angle to the grip portion (7).

5. Surgical tool for assisting the implantation of an ocular muscle neurostimulator according to claim 4, characterized in that the grip portion (7) has a conical configuration, the grip portion (7) decreasing in diameter gradually in the direction approaching the second connection portion (8);

and/or, the surface of the second connecting part (8) is provided with a second positioning bulge (13), a second positioning hole is formed in the pipe wall of the catheter (1), and when the second connecting part (8) is inserted into the catheter (1), the second positioning bulge (13) is clamped into the second positioning hole.

6. Surgical tool for assisting the implantation of an ocular muscular neurostimulator according to any of the claims 1-5, characterized in that it further comprises a grind comparison template (9), the shape of the grind comparison template (9) being adapted to the shape of the stimulator;

the clamping part (10) is arranged on the plate surface of the bone grinding comparison template (9), and the bone grinding comparison template (9) is suitable for being taken through the clamping part (10).

7. Surgical tool for assisting the implantation of an ocular muscle neurostimulator according to claim 6, characterized in that the clamping part (10) has a plate-like structure, and that both plate surfaces of the clamping part (10) are provided with grooves (11) suitable for forceps to grip.

8. The surgical tool for assisting in the implantation of an ocular muscle neurostimulator of claim 7, wherein the grind alignment template is made of stainless steel material.