CN111904546A - Transverse carpal ligament releaser - Google Patents

Abstract

The invention belongs to the technical field of medical devices, in particular to a carpal transverse ligament releaser. The transverse carpal ligament releaser of the present invention includes a housing, a shearing unit, a driving assembly and a positioning sleeve. The driving assembly is installed in the housing, and its driving end passes through the housing and is connected with the housing. The shearing unit is connected in a transmission, the drive assembly is used to drive the shearing unit to be sheared, one end of the positioning sleeve is open, is detachably connected to the housing, and is sleeved outside the shearing unit , the other end of the positioning sleeve is provided with a gap extending through it on both sides along its length direction, one end of the gap extends to the other end of the positioning sleeve, and the gap is provided with a top component for positioning the ligament. Advantages: The structural design is reasonable, the tissue can be positioned effectively, and the transverse carpal ligament can be effectively cut.

Description

A carpal transverse ligament releaser

technical field

The invention belongs to the technical field of medical devices, in particular to a carpal transverse ligament releaser.

Background technique

At present, the traditional transverse carpal ligament cutting operation is a traditional surgical operation, in which the patient's palm and wrist tissue are incised in a large area, and then the transverse carpal ligament is searched for cutting. The process is longer and the risk of follow-up care is higher.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a transverse carpal ligament releaser, which effectively overcomes the defects of the prior art.

The technical scheme that the present invention solves the above-mentioned technical problems is as follows:

A kind of carpal transverse ligament releaser is provided, comprising a casing, a shearing unit, a driving assembly and a positioning sleeve, the above-mentioned driving assembly is installed in the above-mentioned casing, and its driving end passes through the above-mentioned casing, and is connected with the above-mentioned shearing unit. Transmission connection, the above-mentioned drive assembly is used to drive the above-mentioned shearing unit to shear, one end of the above-mentioned positioning sleeve is open, and is detachably connected to the above-mentioned housing, and is sleeved outside the above-mentioned shearing unit, and the other end of the above-mentioned positioning sleeve is along the Its length direction is provided with gaps running through it on both sides, one end of the gap extends to the other end of the positioning sleeve, and a positioning component for positioning the ligament is arranged at the gap.

The beneficial effects of the invention are that the structure design is reasonable, the tissue can be positioned effectively, and the transverse carpal ligament can be effectively cut.

On the basis of the above technical solutions, the present invention can also be improved as follows.

Further, the above-mentioned shearing unit is a pair of scissors formed by two blades staggered and connected, and the hinge point of the two above-mentioned blades is connected with the above-mentioned housing by a connector, and the driving end of the above-mentioned drive assembly is connected with the tail of the two blades of the above-mentioned scissors. end drive connection.

The beneficial effects of adopting the above-mentioned further scheme are simple structure design and convenient cutting operation.

Further, the above-mentioned driving assembly includes a pull rod, a positioning pin, a turning block and a pressing portion, and the tail ends of the two above-mentioned blades are overlapped with each other, and two sides are respectively provided at the overlapping places to penetrate the two and extend to one side away from each other. A sliding hole, the positioning pin passes through the overlapping ends of the two sliding holes, one end of the pulling rod is connected to the positioning pin, and the other end penetrates the casing and extends into its interior, and the casing is provided with the pressing part Through the hole position, the above-mentioned pressing part partially rotates through the hole position and is rotatably connected with the above-mentioned casing, the middle part of the above-mentioned rotating block is rotatably installed in the above-mentioned casing, and its two ends are respectively connected with the one end of the above-mentioned pressing part that extends into the above-mentioned casing. And the other end of the pull rod is movably connected, the external force swings the above-mentioned pressing part inside and outside, and the above-mentioned pressing part drives the above-mentioned turning block and the above-mentioned pull-rod to interlock, so that the above-mentioned pull-rod moves, retracts or extends to the inside of the above-mentioned housing, thereby realizing the cutting of the above-mentioned scissors. combine.

The beneficial effects of adopting the above-mentioned further scheme are simple and compact structural design, convenient and flexible operation and use.

Further, the above-mentioned connector is a strip-shaped tubular structure parallel to the above-mentioned tie rod, one end of which is connected and fixed with the part of the above-mentioned casing passing through the above-mentioned tie-rod, and the other end is symmetrically provided with sheet-shaped connecting parts on both sides, and the above-mentioned shearing unit is placed in the Between the above-mentioned connecting parts on both sides, and the hinge points of the two blades are connected with the above-mentioned connecting parts on both sides, the cutter head part extends from the end of the above-mentioned connecting part away from the pipe body, and the above-mentioned tie rod passes through the above-mentioned connecting piece along the length direction. lumen.

The beneficial effect of adopting the above-mentioned further scheme is that the structure is compact and beautiful, and the operation process is smoother.

Further, a cylindrical positioning portion is provided on the outside of one end of the connecting piece connected to the housing, and one end of the positioning sleeve is detachably sleeved outside the positioning portion.

The beneficial effect of adopting the above-mentioned further scheme is to facilitate the disassembly and assembly of the positioning sleeve.

Further, a damping layer is provided on the outer surface of the positioning portion.

The beneficial effect of adopting the above-mentioned further solution is that the design makes it difficult to fall off under slight external force interference after the positioning sleeve is connected with the positioning portion.

Further, the positioning assembly is a pair of barbs disposed on both sides of one end of the notch.

The beneficial effects of adopting the above-mentioned further scheme are that the structure design is simple and the positioning operation is convenient.

Further, the two surfaces connecting the edge of the other end of the positioning sleeve and the two sides of the gap are symmetrically arranged and inwardly extending inclined surfaces.

The beneficial effect of adopting the above-mentioned further scheme is to facilitate the positioning of the ligament through the incision into the tissue.

Description of drawings

Fig. 1 is the structural representation of removing the positioning sleeve in the transverse carpal ligament releaser of the present invention;

2 is a schematic structural diagram of the cooperation between the driving component and the shearing unit in the transverse carpal ligament releaser of the present invention;

3 is a schematic structural diagram of a connector in the transverse carpal ligament releaser of the present invention;

4 is a schematic structural diagram of a positioning sleeve in the transverse carpal ligament releaser of the present invention.

In the accompanying drawings, the list of components represented by each number is as follows:

1. Housing, 2. Shearing unit, 3. Drive assembly, 4. Positioning sleeve, 5. Connecting piece, 31, Pull rod, 32, Positioning pin, 33, Turning block, 34, Pressing part, 41, Barb , 51, the positioning department.

Detailed ways

The principles and features of the present invention are described below, and the examples are only used to explain the present invention, but not to limit the scope of the present invention.

Embodiment: As shown in FIG. 1 , the transverse carpal ligament releaser in this embodiment includes a casing 1, a shearing unit 2, a driving assembly 3 and a positioning sleeve 4, and the above-mentioned driving assembly 3 is installed in the above-mentioned casing 1, Its driving end passes through the above-mentioned housing 1 and is connected with the above-mentioned shearing unit 2 in a driving manner. The above-mentioned driving assembly 3 is used to drive the above-mentioned shearing unit 2 to be sheared. It is detachably connected, and is sleeved outside the above-mentioned shearing unit 2. The other end of the above-mentioned positioning sleeve 4 is provided with a gap through its two sides along its length direction, and one end of the above-mentioned gap extends to the other end of the above-mentioned positioning sleeve 4. A positioning component for positioning the ligament is provided in the above-mentioned gap.

During the operation, an incision is first placed on the patient's hand. Next, the other end of the positioning sleeve 4 is inserted through the incision, and the ligament is slid into the gap. Drive component 3 cuts the ligament, and the operation is completed. The entire product has a reasonable structure design, can effectively locate the tissue, and effectively cut the transverse carpal ligament. The patient has a small surgical wound and is easy to recover after surgery.

It should be noted that: the positioning sleeve 4 can be removed. In the early stage of the operation, the positioning sleeve 4 is used alone to locate the ligament, and then the shearing unit 2 is extended into the positioning sleeve 2 to keep the positioning sleeve 2 and the shell. The body 1 is well connected. Next, the driving component 3 is operated to drive the shearing unit 2 to complete the shearing operation of the ligament;

As a preferred embodiment, as shown in FIG. 2 , the above-mentioned shearing unit 2 is a pair of scissors composed of two blades that are staggered and rotationally connected to each other. The driving end of the above-mentioned driving assembly 3 is connected with the rear ends of the two blades of the above-mentioned scissors in a driving manner.

As a preferred embodiment, as shown in FIGS. 1 and 2 , the above-mentioned driving assembly 3 includes a pull rod 31 , a positioning pin 32 , a turning block 33 and a pressing portion 34 , and the tail ends of the two above-mentioned blades overlap each other, and at the overlapping place The two sides are respectively provided with sliding holes 21 extending through the two sides and extending away from each other. The positioning pins 32 pass through the overlapping ends of the two sliding holes 21. One end of the pull rod 31 is connected to the positioning pins 32. The other end extends into the interior of the casing 1. The casing 1 is provided with a hole for the pressing portion 34 to pass through. The pressing portion 34 partially rotates through the hole and rotates with the casing 1. The middle part of the above-mentioned rotating block 33 is rotatably installed in the above-mentioned casing 1, and its two ends are respectively movably connected with one end of the above-mentioned pressing part 34 extending into the above-mentioned casing 1 and the other end of the pull rod 31, and the external force swings the above-mentioned pressing part inside and outside. 34, the above-mentioned pressing part 34 drives the above-mentioned rotating block 33 and the above-mentioned pull rod 31 to be linked, so that the above-mentioned pull rod 31 is moved to the inside of the above-mentioned housing 1, retracted or extended, so as to realize the shearing of the above-mentioned scissors, when shearing the ligament, by The external force acts on the pressing portion 34, so that the pressing portion 34 drives the rotating block 33 to move, thereby driving the pull rod 31 to extend out of the housing 1 and move forward to complete the cutting operation. Then, the pressing portion 34 drives the above-mentioned rotating block 33 to move, thereby The pull rod 31 is driven to retract the housing 1 and move backward, so that the scissors are opened, the structure design is ingenious, and the operation is very simple.

It should be noted that: optimally, the casing 1 is designed as a gun-shaped casing that is easy for medical staff to hold, the pressing part 34 is on the front side of the handle part of the forced casing, and the turning block 33 is crescent-shaped, and its arc opening faces Above the rear side of the handle, the middle of the turning block 33 is rotatably connected to the housing 1 through a turning pin, and one end of the turning block 33 is provided with a strip-shaped assembly hole running through it on both sides. The other end of the pull rod 31 is connected.

As a preferred embodiment, as shown in FIGS. 1 , 2 and 3 , the connecting member 5 is a strip-shaped tubular structure parallel to the pulling rod 31 , and one end of the connecting member 5 is connected and fixed to the part of the casing 1 passing through the pulling rod 31 . , the other end is symmetrically provided with sheet-like connecting parts on both sides, the above-mentioned shearing unit 2 is placed between the above-mentioned connecting parts on both sides, and the hinge points of the two above-mentioned blades are connected with the above-mentioned connecting parts on both sides, and the cutter head part extends The end of the connecting part that is away from the tube body, the pulling rod 31 passes through the inner cavity of the connecting piece 5 along the length direction, the overall design makes the pulling rod 31 and the shearing unit 2 not leak out, and the pulling rod 31 and the connecting piece 5 cavity The shape is matched to ensure that the pull rod 31 moves out of the casing 1 or retracts the casing 1 in the correct direction under the action of external force, and the overall design is reasonable and beautiful.

As a preferred embodiment, as shown in FIG. 4 , a cylindrical positioning portion 51 is provided on the outside of one end of the connecting member 5 connected to the housing 1 , and one end of the positioning sleeve 4 is detachably sleeved on the positioning portion. In addition to 51, specifically, one end of the positioning sleeve 4 is provided with a tubular sleeve part that matches the positioning part 51. This design is conducive to the good assembly between the positioning sleeve 4 and the housing 1, and ensures that the operation process will not appear relative. The shaking of the position makes the surgical procedure smooth.

As a preferred embodiment, the outer surface of the positioning portion 51 is provided with a damping layer. This design enables the positioning sleeve 4 and the positioning portion 51 to maintain a good cooperation relationship after being assembled, and is not prone to large relative movement. , When removing the positioning sleeve 4, just pull outward to overcome the friction.

As a preferred embodiment, the positioning assembly is a pair of barbs 41 disposed on both sides of one end of the gap. During the operation, the other end of the positioning sleeve 4 is inserted into the incision tissue, and the ligament is slid into the incision tissue. inside the gap until the barb 41 is slid, and then slightly pull the entire positioning sleeve 4 outward, so that the barb 41 hooks both sides of the ligament, so that the ligament can be positioned well. Next, the shearing of the ligament is completed. Yes, its design is relatively simple.

As a preferred embodiment, the two surfaces connecting the edge of the other end of the positioning sleeve 4 with the two sides of the gap are symmetrically arranged and extending inwardly, that is, the two sides of the gap at the other end of the positioning sleeve 4 Both are wedge surfaces, which is conducive to extending the other end of the positioning sleeve 4 into the tissue, and has the effect of reducing resistance.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (8)

1. A transverse carpal ligament releaser, characterized in that: comprising a housing (1), a shearing unit (2), a drive assembly (3) and a positioning sleeve (4), and the drive assembly (3) is installed In the housing (1), the driving end thereof passes through the housing (1) and is connected with the shearing unit (2) in a driving manner, and the driving assembly (3) is used for driving the shearing The unit (2) is sheared, one end of the positioning sleeve (4) is open, and is detachably connected to the casing (1), and is sleeved outside the shearing unit (2), the positioning sleeve The other end of the tube (4) is provided with a gap extending through the two sides along its length direction, one end of the gap extends to the other end of the positioning sleeve (4), and a positioning component for positioning the ligament is provided at the gap . 2. The transverse carpal ligament releaser according to claim 1, wherein the shearing unit (2) is a pair of scissors formed by two blades staggered and rotationally connected, and the two blades are hinged The point is connected with the housing (1) through a connecting piece (5), and the driving end of the driving assembly (3) is drivingly connected with the tail ends of the two blades of the scissors. 3. The transverse carpal ligament releaser according to claim 2, wherein the drive 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 overlapped with each other, and the two sides of the overlap are respectively provided with sliding holes (21) extending through the two sides and extending away from the two sides. The positioning pins (32) Passing through the overlapping ends of the two sliding holes (21), one end of the pulling rod (31) is connected with the positioning pin (32), and the other end extends into the interior of the housing (1) through the casing (1), The casing (1) is provided with a hole for the pressing portion (34) to pass through, and the pressing portion (34) partially rotates through the hole and is rotatably connected with the casing (1), so The middle part of the rotating block (33) is rotatably installed in the casing (1), and the two ends of the rotating block (33) are respectively connected with one end of the pressing part (34) extending into the interior of the casing (1) and the other end of the pull rod (31). One end is movably connected, the pressing portion (34) is swung inside and outside by external force, and the pressing portion (34) drives the rotating block (33) and the pull rod (31) to link together, so that the pull rod (31) moves to the desired direction. The inside of the casing (1) moves to retract or extend, so as to realize the shearing of the scissors. 4 . The transverse carpal ligament releaser according to claim 3 , wherein the connecting piece ( 5 ) is a bar-shaped tubular structure parallel to the tie rod ( 31 ), and one end of the connecting piece is connected to the shell. 5 . The part of the body (1) passing through the tie rod (31) is connected and fixed, the other end is symmetrically provided with sheet-like connecting parts on both sides, and the shearing unit (2) is placed between the connecting parts on both sides, and The hinge points of the two blades are connected with the connecting parts on both sides, the cutter head part protrudes from the end of the connecting part away from the pipe body, and the pull rod (31) passes through the connecting piece (31) along the length direction. 5) Inner cavity. 5 . The transverse carpal ligament releaser according to claim 4 , wherein a cylindrical positioning portion ( 51 ) is provided on the outside of one end of the connecting piece ( 5 ) that is connected to the housing ( 1 ). 6 . One end of the positioning sleeve (4) is detachably sleeved outside the positioning portion (51). 6 . The transverse carpal ligament releaser according to claim 5 , wherein a damping layer is provided on the outer surface of the positioning portion ( 11 ). 7 . 7 . The transverse carpal ligament releaser according to claim 1 , wherein the positioning component is a pair of barbs ( 41 ) disposed on both sides of one end of the notch. 8 . 8. The transverse carpal ligament releaser according to any one of claims 1 to 7, characterized in that: the two surfaces connecting the edge of the other end of the positioning sleeve (4) with both sides of the gap are: Symmetrical and inwardly extending slopes.

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