CN214907778U

CN214907778U - Minimally invasive cutter for carpal tunnel

Info

Publication number: CN214907778U
Application number: CN202120749970.7U
Authority: CN
Inventors: 叶远坚
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-13
Filing date: 2021-04-13
Publication date: 2021-11-30
Anticipated expiration: 2031-04-13

Abstract

The utility model provides a pair of carpal tunnel cutterbar of wicresoft, include: guider and cutting knife, the guider is provided with the guide way, and the cutting knife includes the handle of a knife, the blade holder, blade and slider, and the slider sets up in one side of blade holder, and the blade is connected with the one end of blade holder, and the other end and the handle of a knife of blade holder are connected, and slider detachably sets up in the guide way, and the slider slides and sets up in the guide way, has avoided guide way and slider to take place the direction skew when the cooperation is used, makes the cutting knife can accurate cutting transverse carpal ligament, avoids causing the vice damage of operation. In addition, be provided with the skid resistant course in the cutting knife handle outside, the handle of a knife is difficult to the slippage when carrying out the operation, and the operation of being convenient for goes on in order.

Description

Minimally invasive cutter for carpal tunnel

Technical Field

The utility model relates to the technical field of medical equipment, in particular to minimally invasive cutterbar of carpal tunnel.

Background

Carpal tunnel syndrome is a group of symptoms and signs exhibited by the median nerve when the carpal tunnel is compressed, and belongs to the most common one of peripheral nerve entrapment syndromes. The patient presents with prick, numbness, weakness or pain in the radial and radial halves of the fingers, and pain in the arms between the partially conscious hands and elbows. The treatment includes home treatment, physical treatment, drug treatment, surgical treatment and the like.

The operation treatment is to cut the transverse carpal ligament generally, release the median nerve, the medical apparatus that the operation adopted is called the minimally invasive cutter of carpal tunnel, but the direction deviation easily takes place when the guide way of the minimally invasive cutter director of carpal tunnel that uses at present uses with the cutting knife cooperation, the serious person can cause the median nerve of patient, the superficial arch artery of palm to damage, the cutting knife is easy to be slipped when using, cause very big inconvenience to the operation.

SUMMERY OF THE UTILITY MODEL

Based on this, there is a need for a minimally invasive carpal tunnel cutter.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a minimally invasive carpal tunnel cutter comprising: the cutting knife comprises a guider and a cutting knife, wherein the guider is provided with a guide groove, the cutting knife comprises a knife handle, a knife holder, a blade and a sliding block, the sliding block is arranged on one side of the knife holder, the blade is connected with one end of the knife holder, the other end of the knife holder is connected with the knife handle, the sliding block is detachably arranged in the guide groove, and the sliding block is slidably arranged in the guide groove.

In one embodiment, the guide includes a handle, a connecting rod having one end connected to the handle and the other end connected to the guide rod, and a guide rod provided with the guide groove.

In one embodiment, the cross-sectional shape of the guide groove is trapezoidal, triangular or circular, and the cross-sectional shape of the slider is trapezoidal, triangular or circular.

In one embodiment, the handle is configured as a cylindrical handle.

In one embodiment, the blade is configured as a circular blade or a shovel blade.

In one embodiment, the width of the tool shank is greater than the width of the tool holder.

In one embodiment, the distance between the slider and the handle is greater than the distance between the blade and the handle.

In one embodiment, the outer side of the knife handle is provided with an anti-slip layer.

In one embodiment, the non-slip layer is provided with at least one of a thread structure, a standing grain structure, a cross grain structure, and a bump structure.

The utility model has the advantages that: the utility model provides a pair of carpal tunnel wicresoft cutterbar sets up in the guide way through slider detachably, and the slider slides and sets up in the guide way, during the use, insert the edge under the horizontal ligament entry of wrist with the director, make the guide way align in the horizontal ligament of wrist, place the slider in the guide way, the slider and the blade motion on the blade holder are driven to the handheld handle of user, through the guide of guide way to the slider, make the slider can slide along the guide way accurately, and then make the blade move to the horizontal ligament of wrist and cut the horizontal ligament of wrist accurately, the utility model discloses convenient to use has avoided guide way and slider to take place the direction skew when the cooperation is used, makes the cutting knife can the horizontal ligament of accurate cutting, avoids causing the vice damage of operation.

Furthermore, the utility model discloses be provided with the skid resistant course in the cutting handle of a knife outside, the handle of a knife is difficult to the slippage when carrying out the operation, and the operation of being convenient for goes on in order.

Drawings

FIG. 1 is a schematic structural diagram of a minimally invasive carpal tunnel cutter according to an embodiment;

FIG. 2 is a schematic view of a cutting blade of a minimally invasive carpal tunnel cutter in accordance with an embodiment;

FIG. 3 is a schematic structural view of a carpal tunnel minimally invasive cutter guide of an embodiment;

FIG. 4 is a partial cross-sectional structural schematic view of a minimally invasive carpal tunnel cutter of an embodiment;

FIG. 5 is a schematic cross-sectional view of one embodiment of a guide in one direction.

In the drawings, 10 is a minimally invasive carpal tunnel cutter, 100 is a cutting knife, 200 is a guider, 110 is a knife handle, 120 is a knife holder, 130 is a blade, 140 is a sliding block, 210 is a handle, 220 is a connecting rod, 230 is a guide rod, and 240 is a guide groove.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The following will combine the drawings of the embodiments of the present invention to further describe the technical solution of the present invention, and the present invention is not limited to the following specific embodiments.

It should be understood that the same or similar reference numerals in the drawings of the embodiments correspond to the same or similar parts. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is merely for convenience of description and simplicity of description, but does not indicate or imply that the equipment or components referred to must have specific orientations, be constructed in specific orientations, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and those skilled in the art will understand the specific meanings of the terms according to specific situations.

In one embodiment, as shown in FIG. 1, a carpal tunnel minimally invasive cutter 10 comprises: the cutting tool comprises a guider 200 and a cutting knife 100, wherein the guider 200 is provided with a guide groove 240, the cutting knife 100 comprises a knife handle 110, a knife holder 120, a blade 130 and a sliding block 140, the sliding block 140 is arranged on one side of the knife holder 120, the blade 130 is connected with one end of the knife holder 120, the other end of the knife holder 120 is connected with the knife handle 110, the sliding block 140 is detachably arranged in the guide groove 240, and the sliding block 140 is slidably arranged in the guide groove 240.

In this embodiment, when in use, the guide 200 is held by hand, the cutting blade 100 is moved to the outer side of the guide 200, and the slider 140 is slid, so that the slider 140 and the guide groove 240 are matched with each other, and thus the guide 200 can limit the moving direction of the cutting blade 100, and the cutting blade 100 can move along the guide groove 240, so that the cutting blade 100 can perform positioning cutting during surgery, and the accuracy of the surgery operation is improved.

In this embodiment, the cutting blade 100 includes a handle 110, a seat 120, a blade 130, and a slider 140, the seat 120 is integrally connected with the blade 130, and correspondingly, the handle 110, the seat 120, the blade 130, and the slider 140 may also be integrally disposed.

In one embodiment, as shown in fig. 3, the guide 200 includes a handle 210, a connecting rod 220 and a guiding rod 230, one end of the connecting rod 220 is connected to the handle 210, the other end of the connecting rod 220 is connected to the guiding rod 230, the guiding rod 230 is provided with the guiding groove 240, specifically, one end of the handle 210 is fixedly connected to one end of the connecting rod 220, one end of the connecting rod 220 is fixedly connected to one end of the guiding rod 230 and is perpendicular to the one end of the guiding rod 230, when in use, the handle 210 and the guiding rod 230 are perpendicular to each other, so as to facilitate grasping and moving of the guide 200, the length of the guiding groove 240 is equal to the length of the guiding rod 230, so that the slider 140 can slide into the guiding groove 240, and the guiding rod 230 can be moved by moving the handle 210, thereby facilitating operation.

In order to make the guide groove 240 better guide the slider 140, as shown in fig. 4 and 5, in one embodiment, the cross-sectional shape of the guide groove 240 is triangular, the cross-sectional shape of the slider 140 is triangular, and in particular, the width of the guide groove 240 is adapted to the width of the slider 140, when a minimally invasive carpal tunnel cutter is used, the slider 140 slides in the guide groove 240, because the cross-sectional shape of the guide groove 240 is triangular, the cross-sectional shape of the slider 140 is a matched triangle, so that two sides of the slider 140 smoothly get stuck in the guide groove 240 when sliding, the slider 140 can only slide in one direction and is not easy to fall off, and the operation is performed orderly, in another embodiment, the cross-sectional shapes of the guide groove 240 and the slider 140 are trapezoidal, in yet another embodiment, the cross-sectional shapes of the guide groove 240 and the slider 140 are circular.

In order to make the guide 200 convenient to use and easy to grasp, as shown in fig. 3 and 5, in one embodiment, the handle 210 is a cylindrical handle, and in particular, the handle 210 is a flat cylinder, so that the handle is lighter and more convenient to grasp and facilitates the operation.

In order to make the cutting knife 100 easier to operate in surgery, as shown in fig. 2, in one embodiment, the blade 130 is configured as a circular blade, the width of the knife handle 110 is greater than the width of the tool apron 120, specifically, the tool apron 120 is installed in the knife handle 110, and the width is less than the width of the knife handle 110, the blade 130 is a circular blade and is installed at one end of the tool apron 120 away from the knife handle 110, so that the cutting knife 100 is convenient to use during cutting, and in another embodiment, the blade 130 may also be configured as a shovel blade.

As shown in fig. 1 and 2, in an embodiment, a distance between the slider 140 and the handle 110 is greater than a distance between the blade 130 and the handle 110, specifically, in use, the guide 200 is held by a hand to be positioned, the cutting knife 100 is moved to slide the slider 140 of the cutting knife 100 into the guide groove 240, and after the slider 140 is accurately positioned, the blade 130 cuts the transverse carpal ligament along the direction in which the slider 140 is positioned, so that no surgical side injury is caused due to inaccurate positioning, and the surgical operation is more accurate and safer.

As shown in fig. 2, in order to make the cutting knife 100 not easy to slip off the hand when in use, in an embodiment, an anti-slip layer is disposed on the outer side of the knife handle 110, specifically, when in operation, the knife handle 110 is disposed with the anti-slip layer, so that friction is increased when in gripping, and the knife handle 110 is not easy to slip off the hand when in use, which is convenient for the operation to be performed, for example, the anti-slip layer is disposed as a thread structure, and accordingly, the anti-slip layer can be further disposed as a vertical stripe structure, a horizontal stripe structure or a bump structure, or any combination of the thread structure, the vertical stripe structure, the horizontal stripe structure and the bump structure, and the friction coefficient on the surface of the knife handle 110 can be increased, so that the cutting knife has a larger friction force when in gripping, and can play a role in anti-slip.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A minimally invasive carpal tunnel cutter, comprising: the cutting knife comprises a guider and a cutting knife, wherein the guider is provided with a guide groove, the cutting knife comprises a knife handle, a knife holder, a blade and a sliding block, the sliding block is arranged on one side of the knife holder, the blade is connected with one end of the knife holder, the other end of the knife holder is connected with the knife handle, the sliding block is detachably arranged in the guide groove, and the sliding block is slidably arranged in the guide groove.

2. The minimally invasive carpal tunnel cutter as claimed in claim 1, wherein said guide comprises a handle, a connecting rod and a guiding rod, one end of said connecting rod being connected to said handle and the other end of said connecting rod being connected to said guiding rod, said guiding rod being provided with said guiding slot.

3. The minimally invasive carpal tunnel cutter as in claim 2, wherein said guide slot has a cross-sectional shape of any one of a trapezoid, a triangle and a circle, said slider having a cross-sectional shape matching the cross-sectional shape of said guide slot.

4. The minimally invasive carpal tunnel cutter as in claim 2, wherein said handle is configured as a cylindrical handle.

5. The minimally invasive carpal tunnel cutter as in claim 1, wherein said blade is configured as a circular blade or a shovel blade.

6. The minimally invasive carpal tunnel cutter as in claim 1, wherein said handle is wider than said seat.

7. The minimally invasive carpal tunnel cutter as in claim 1, wherein the distance between said slider and said handle is greater than the distance between said blade and said handle.

8. The minimally invasive carpal tunnel cutter as claimed in claim 1, wherein an anti-slip layer is provided on the outside of the handle.

9. The minimally invasive carpal tunnel cutter as in claim 8, wherein said anti-slip layer is provided with at least one of a threaded configuration, a vertical thread configuration, a horizontal thread configuration and a bump configuration.