CN111904546A

CN111904546A - Transverse carpal ligament releaser

Info

Publication number: CN111904546A
Application number: CN202010815474.7A
Authority: CN
Inventors: 黄勇; 吴刚; 胡昊
Original assignee: HUBEI PROVINCIAL HOSPITAL OF TCM
Current assignee: HUBEI PROVINCIAL HOSPITAL OF TCM
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2020-11-10

Abstract

The invention belongs to the technical field of medical instruments, and particularly relates to a transverse carpal ligament loosening device. The transverse carpal ligament releaser comprises a shell, a shearing unit, a driving assembly and a positioning sleeve, wherein the driving assembly is installed in the shell, the driving end of the driving assembly penetrates through the shell and is in transmission connection with the shearing unit, the driving assembly is used for driving the shearing unit to be sheared, one end of the positioning sleeve is open and is detachably connected with the shell and sleeved outside the shearing unit, a notch with two sides penetrating through the positioning sleeve is formed in the other end of the positioning sleeve along the length direction of the positioning sleeve, one end of the notch extends to the end part of the other end of the positioning sleeve, and a top assembly used for positioning ligaments is arranged at the notch. The advantages are that: the structural design is reasonable, the tissue can be effectively positioned, and the transverse carpal ligament can be effectively cut.

Description

Transverse carpal ligament releaser

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a transverse carpal ligament loosening device.

Background

At present, traditional transverse carpal ligament is cuted the operation and is all adopted traditional surgical operation, opens patient's palm and wrist tissue by a large scale, then seeks transverse carpal ligament and cuts off, and the operation process surface of a wound is great, and later stage recovery time is of a specified duration, and the operation process is longer to follow-up nursing risk is also great.

Disclosure of Invention

The invention aims to solve the technical problem of providing a transverse carpal ligament loosening device, which effectively overcomes the defects of the prior art.

The technical scheme for solving the technical problems is as follows:

the utility model provides a transverse carpal ligament takes apart ware, which comprises a housin, the shearing unit, drive assembly and location sleeve, above-mentioned drive assembly installs in above-mentioned casing, its drive end passes above-mentioned casing, and be connected with the transmission of above-mentioned shearing unit, above-mentioned drive assembly is used for ordering about above-mentioned shearing unit and cuts, above-mentioned location sleeve one end is uncovered, and can dismantle with above-mentioned casing and be connected, and the cover is located outside above-mentioned shearing unit, the breach that both sides run through it is seted up along its length direction to the above-mentioned location sleeve other end, above-mentioned breach one end extends to above-mentioned location sleeve other end tip, above-mentioned breach department is.

The invention has the beneficial effects that: the structural design is reasonable, the tissue can be effectively positioned, and the transverse carpal ligament can be effectively cut.

On the basis of the technical scheme, the invention can be further improved as follows.

Further, the shearing unit is scissors formed by mutually staggered and rotatably connected two blades, the hinged point of the two blades is connected with the shell through a connecting piece, and the driving end of the driving component is in transmission connection with the tail ends of the two blades of the scissors.

The beneficial effects of adopting above-mentioned further scheme are that structural design is simple, cuts convenient operation.

Further, the driving assembly comprises a pull rod, a positioning pin, a rotating block and a pressing part, the tail ends of the two blades are mutually overlapped, sliding holes which are respectively arranged at the overlapped part and penetrate through the two blades and extend towards one side away from the two blades, the positioning pin penetrates through the overlapped ends of the two sliding holes, one end of the pull rod is connected with the positioning pin, the other end of the pull rod penetrates through the shell and extends into the shell, a hole position for the pressing part to penetrate is arranged on the shell, the pressing part partially penetrates through the hole position and is rotatably connected with the shell, the middle part of the rotating block is rotatably arranged in the shell, the two ends of the rotating block are respectively movably connected with one end of the pressing part extending into the shell and the other end of the pull rod, the pressing part is rotated inside and outside by external force, the pressing part drives the rotating block and the pull rod to be linked, so that the pull, thereby realizing the shearing of the scissors.

The beneficial effects of adopting the further scheme are that the structure design is simple and compact, and the operation and the use are convenient and flexible.

Further, the connecting piece is of a strip-shaped tubular structure parallel to the pull rod, one end of the connecting piece is fixedly connected with the part of the shell, penetrating out of the pull rod, two sides of the other end of the connecting piece are symmetrically provided with sheet-shaped connecting parts, the shearing unit is arranged between the connecting parts on two sides, the hinged point of the two blades is connected with the connecting parts on two sides, the cutter head part of the shearing unit extends out of one end of the connecting part, which is deviated from the tube body, and the pull rod penetrates through the inner cavity of the connecting piece along the.

The beneficial effects of adopting the above-mentioned further scheme are that compact structure, pleasing to the eye, the operation process is more smooth and easy.

Furthermore, a columnar positioning part is arranged outside one end of the connecting piece connected with the shell, and one end of the positioning sleeve is detachably sleeved outside the positioning part.

The beneficial effect of adopting above-mentioned further scheme is that the dismouting combination that does benefit to position sleeve uses.

Further, the outer surface of the positioning part is provided with a damping layer.

The beneficial effect of adopting above-mentioned further scheme is that this design makes difficult under slight external force interference that drops after position sleeve and location portion are connected.

Furthermore, the positioning component is a pair of barbs arranged at two sides of one end of the notch.

The beneficial effects of adopting above-mentioned further scheme are that structural design is simple, and location convenient operation.

Furthermore, two surfaces of the edge of the other end of the positioning sleeve, which are connected with two sides of the notch, are inclined surfaces which are symmetrically arranged and extend inwards.

The beneficial effect of adopting the above-mentioned further scheme is that be convenient for get into tissue inside from the incision and fix a position the ligament.

Drawings

FIG. 1 is a schematic view of a transverse carpal ligament release device of the present invention with the positioning sleeve removed;

FIG. 2 is a schematic structural diagram of the driving assembly and the shearing unit in the transverse carpal ligament release device according to the present invention;

FIG. 3 is a schematic structural view of a connecting member in the transverse carpal ligament release device of the present invention;

fig. 4 is a schematic structural view of a positioning sleeve in a transverse carpal ligament release device in accordance with the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a shell, 2, a shearing unit, 3, a driving assembly, 4, a positioning sleeve, 5, a connecting piece, 31, a pull rod, 32, a positioning pin, 33, a rotating block, 34, a pressing part, 41, a barb, 51 and a positioning part.

Detailed Description

The principles and features of this invention are described below in conjunction with examples which are set forth to illustrate, but are not to be construed to limit the scope of the invention.

Example (b): as shown in fig. 1, the transverse carpal ligament releaser of this embodiment includes a housing 1, a shearing unit 2, a driving assembly 3 and a positioning sleeve 4, wherein the driving assembly 3 is installed in the housing 1, a driving end of the driving assembly passes through the housing 1 and is in transmission connection with the shearing unit 2, the driving assembly 3 is used for driving the shearing unit 2 to be sheared, one end of the positioning sleeve 4 is open and is detachably connected with the housing 1, and is sleeved outside the shearing unit 2, the other end of the positioning sleeve 4 is provided with a notch, two sides of which penetrate through the positioning sleeve 4 along a length direction thereof, one end of the notch extends to an end of the other end of the positioning sleeve 4, and the notch is provided with a positioning assembly for positioning a ligament.

During the operation, at first at patient's hand overall arrangement incision, next, stretch into the other end of position sleeve 4 by the incision to make the ligament slide in the breach, then, make the ligament keep the current position through locating component, next, cut the ligament through drive assembly 3, this operation is accomplished promptly, and whole product structural design is reasonable, can effectively fix a position the tissue, and effectively cut the transverse carpal ligament, and the patient's surface of a wound of performing the operation is little, easily postoperative resumes.

It should be noted that: the positioning sleeve 4 can be taken down, the ligament is positioned by independently using the positioning sleeve 4 in the early stage of the operation, then the shearing unit 2 extends into the positioning sleeve 2 to keep the positioning sleeve 2 and the shell 1 well connected, and then the shearing unit 2 is driven by the operation driving component 3 to complete the shearing operation of the ligament; the positioning sleeve 4 can also be directly connected with the shell 1 for operation without being detached.

As a preferred embodiment, as shown in fig. 2, the cutting unit 2 is a pair of scissors formed by two blades that are rotatably connected to each other in a staggered manner, a hinge point of the two blades is connected to the housing 1 through a connecting member 5, and a driving end of the driving assembly 3 is in transmission connection with tail ends of the two blades of the pair of scissors.

As a preferred embodiment, as shown in fig. 1 and 2, the driving assembly 3 includes a pull rod 31, a positioning pin 32, a rotating block 33 and a pressing portion 34, the two blades are overlapped with each other at their ends, and a sliding hole 21 is respectively provided at the overlapped portion to penetrate through the two blades and extend to a side away from the two blades, the positioning pin 32 penetrates through one end of the two sliding holes 21 overlapped with each other, one end of the pull rod 31 is connected with the positioning pin 32, the other end penetrates through the housing 1 and extends into the housing, a hole for the pressing portion 34 to penetrate is provided on the housing 1, the pressing portion 34 partially penetrates through the hole and is rotatably connected with the housing 1, the middle portion of the rotating block 33 is rotatably installed in the housing 1, and both ends thereof are movably connected with one end of the pressing portion 34 extending into the housing 1 and the other end of the pull rod 31, the pressing portion 34 is rotated inside and outside by external, the pressing part 34 drives the rotating block 33 and the pull rod 31 to be linked, so that the pull rod 31 moves towards the inside of the shell 1 to retract or extend, and the scissors are cut, when a ligament is cut, the pressing part 34 is acted by external force to drive the rotating block 33 to move, so that the pull rod 31 is driven to extend out of the shell 1 to move forwards, the cutting operation is completed, then the pressing part 34 drives the rotating block 33 to move, so that the pull rod 31 is driven to retract into the shell 1 to move backwards, and the scissors are opened.

It should be noted that: preferably, the housing 1 is designed as a gun-shaped housing which is easy to be held by medical staff, the pressing part 34 is arranged at the front side of the handle part of the forced housing, the rotating block 33 is crescent-shaped, the arc opening of the rotating block faces the upper part of the rear side of the handle, the middle part of the rotating block 33 is rotatably connected with the housing 1 through a rotating pin, one end of the rotating block is provided with a strip-shaped assembling hole, two sides of the assembling hole penetrate through the assembling hole, a guide pin transversely penetrates through the assembling hole, and the guide pin is connected with the other end of the.

As a preferred embodiment, as shown in fig. 1, 2 and 3, the connecting member 5 is a strip-shaped tubular structure parallel to the pull rod 31, one end of the connecting member is fixedly connected to the portion of the housing 1 penetrating through the pull rod 31, sheet-shaped connecting portions are symmetrically arranged on two sides of the other end of the connecting member, the cutting unit 2 is disposed between the two connecting portions, the hinged point of the two blades is connected to the two connecting portions, the blade end portion of the blade extends out of one end of the connecting portion away from the tube body, the pull rod 31 penetrates through the inner cavity of the connecting member 5 along the length direction, the pull rod 31 and the cutting unit 2 are integrally designed so as not to leak, the shape of the inner cavity of the connecting member 31 is matched with that of the inner cavity of the connecting member 5, the pull rod 31 is ensured to perform the action of extending out of the.

As a preferred embodiment, as shown in fig. 4, a columnar positioning portion 51 is disposed outside an end of the connecting member 5 connected to the housing 1, and an end of the positioning sleeve 4 is detachably sleeved outside the positioning portion 51, specifically, a tubular engaging portion matched with the positioning portion 51 is disposed at an end of the positioning sleeve 4, which is beneficial to the good assembly between the positioning sleeve 4 and the housing 1, and ensures that no relative position is swayed during the operation, so that the operation is smooth.

In a preferred embodiment, the damping layer is disposed on the outer surface of the positioning portion 51, so that the positioning sleeve 4 and the positioning portion 51 can maintain a good fit after being assembled, and are not likely to move relatively to each other to a large extent, and at the same time, the positioning sleeve 4 is pulled outward to overcome the friction force when being removed.

As a preferable embodiment, the positioning component is a pair of barbs 41 disposed at two sides of one end of the notch, during the operation, the other end of the positioning sleeve 4 is inserted into the incision tissue, and the ligament is slid into the notch until the ligament slides over the barbs 41, and then the entire positioning sleeve 4 is pulled outward by a small amount to hook two sides of the ligament by the barbs 41, so that the ligament is well positioned, and then the ligament is cut.

As a preferred embodiment, two surfaces of the edge of the other end of the positioning sleeve 4 connected with the two sides of the notch are inclined surfaces which are symmetrically arranged and extend inwards, that is, both sides of the notch at the other end of the positioning sleeve 4 are wedge surfaces, which is beneficial for the other end of the positioning sleeve 4 to extend into the tissue, and has the function of reducing the resistance.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A transverse carpal ligament loosening device is characterized in that: including casing (1), shearing unit (2), drive assembly (3) and position sleeve (4), install drive assembly (3) in casing (1), its drive end passes casing (1), and with shearing unit (2) transmission is connected, drive assembly (3) are used for ordering about shearing unit (2) are cut and are closed, position sleeve (4) one end is uncovered, and with connection can be dismantled in casing (1), and the cover is located outside shearing unit (2), position sleeve (4) other end is seted up its breach that both sides run through it along its length direction, breach one end extends to position sleeve (4) other end tip, breach department is equipped with the positioning assembly who is used for the location ligament.

2. The transverse carpal ligament release device as in claim 1, wherein: the shearing unit (2) is a pair of scissors formed by mutually staggered and rotatably connected two blades, the hinged points of the two blades are connected with the shell (1) through a connecting piece (5), and the driving end of the driving component (3) is in transmission connection with the tail ends of the two blades of the pair of scissors.

3. The transverse carpal ligament release device as in claim 2, wherein: the driving assembly (3) comprises a pull rod (31), a positioning pin (32), a rotating block (33) and a pressing part (34), the tail ends of the two blades are mutually overlapped, two sides of the two blades are respectively arranged at the overlapped position to penetrate through the two blades, one side of the two blades is far away from a sliding hole (21) extending from one side of the two blades, the positioning pin (32) penetrates through two ends of the sliding hole (21) which are mutually overlapped, one end of the pull rod (31) is connected with the positioning pin (32), the other end of the pull rod penetrates through the shell (1) to stretch into the shell, a hole position for the pressing part (34) to penetrate through is arranged on the shell (1), the pressing part of the rotating part (34) passes through the hole position and is rotatably connected with the shell (1), the middle part of the rotating block (33) is rotatably arranged in the shell (1), and the two ends of the rotating block (33) are respectively movably connected with one end of the pressing part, the pressing part (34) is swung inside and outside by external force, the pressing part (34) drives the rotating block (33) and the pull rod (31) to be linked, so that the pull rod (31) moves towards the inside of the shell (1) to retract or extend, and the scissors are cut.

4. The transverse carpal ligament release device as in claim 3, wherein: connecting piece (5) be with the parallel bar tubular structure of pull rod (31), its one end with casing (1) is worn out the position of pull rod (31) is connected fixedly, and other end bilateral symmetry is equipped with flaky connecting portion, shear unit (2) are arranged in both sides between the connecting portion, and two the hinge point and the both sides of blade connecting portion are connected, and its sword head part stretches out connecting portion deviates from the one end of its body, pull rod (31) are passed along length direction connecting piece (5) inner chamber.

5. The transverse carpal ligament release device as in claim 4, wherein: the outer part of one end of the connecting piece (5) connected with the shell (1) is provided with a columnar positioning part (51), and one end of the positioning sleeve (4) is detachably sleeved outside the positioning part (51).

6. The transverse carpal ligament release device as in claim 5, wherein: the outer surface of the positioning part (11) is provided with a damping layer.

7. The transverse carpal ligament release device as in claim 1, wherein: the positioning component is a pair of barbs (41) arranged at two sides of one end of the notch.

8. A transverse carpal ligament release device as in any one of claims 1 to 7, wherein: two surfaces of the edge of the other end of the positioning sleeve (4) connected with two sides of the notch are inclined surfaces which are symmetrically arranged and extend inwards.