CN108938026A - A kind of soft tissue wire-threading device - Google Patents

Abstract

The invention discloses a kind of soft tissue wire-threading devices, it include: handle and crotch, the end of the handle is equipped with string-passing structure, the idler wheel there are two phase mutual friction is set in the string-passing structure, the front end of the string-passing structure has cable-through hole, and the cable-through hole is right against between two idler wheels；The crotch is connect with the string-passing structure, there are hollow channel, the channel and the cable-through hole face in the knife pipe in the middle part of the crotch, PDS line is facilitated to be passed in the crotch.Wire-threading device structure of the present invention is simple, and line reliable performance is crossed in easy to disassemble and replacement.Handle is designed using body mechanics, easy to use comfortable.Elongated knife pipe and crotch structure can provide essence metastable excessively linear energy under narrow operative space.The present invention provides the crotch of various structures, and can satisfy different parts soft tissue crosses line requirement.

Description

A soft tissue threader

technical field

The invention belongs to the technical field of medical instruments, and in particular relates to a soft tissue wire passing device.

Background technique

In arthroscopic surgery, it is often necessary to suture and repair the damaged soft tissue in the joint cavity (such as torn rotator cuff, torn ligament, etc.), but due to the narrow surgical area of the joint cavity and the limited range of operation, there is a lack of suture The tool is inconvenient to operate, it is difficult to guarantee the repair effect of the operation, and the operation efficiency is greatly reduced.

However, if there is a thread passing device that can make the suture hook have higher precision and greater flexibility through reasonable design, and is easy to operate, and can be applied to soft tissue sutures in various parts, it will help doctors complete soft tissue sutures more efficiently. The revision surgery provides patients with good postoperative results.

Therefore, it is necessary to design a soft tissue threader, which can select reasonable hooks for thread threading and repair according to the soft tissue damage in different parts of the patient, and at the same time realize one-handed thread threading and suturing operations, and accurately repair the injured soft tissue. To ensure the best surgical results.

Contents of the invention

The present invention proposes a soft tissue wire passing device, which includes: a handle and a hook. There is a thread passing hole at the front end, and the thread passing hole is facing between the two rollers; the hook is connected with the thread passing structure, and there is a hollow channel in the knife tube in the middle of the hook, and the channel is connected with the thread passing structure. The wire passing hole is directly opposite to facilitate the introduction of the PDS wire into the hook.

In the soft tissue thread passing device proposed by the present invention, the thread passing structure is composed of a space in which the end of the handle is sunken toward the center and its casing, and two symmetrical rotating shafts are arranged in the space, and a roller is set on each of the rotating shafts. , the outer edge of the roller is inwardly recessed and a roller apron is sheathed in the recess; the roller aprons contact and rub against each other; the two rollers and their roller aprons protrude toward the outside of the handle.

In the soft tissue thread passing device proposed by the present invention, the shell is fixed to the handle by screws.

In the soft tissue wire passing device proposed by the present invention, the wire passing structure further includes a wire slot arranged transversely through the handle, and the middle part of the wire slot is provided with a guide groove bent between the rollers , to facilitate the introduction of the PDS line into the line passing hole.

In the soft tissue thread passing device proposed by the present invention, the thread passing structure further includes an assembly ring connected to the hook, and the assembly ring is rotatably sleeved on the end of the handle through threads.

In the soft tissue wire passing device proposed by the present invention, both sides of the assembly ring have outwardly protruding flanges.

In the soft tissue thread passing device proposed by the present invention, the bottom of the hook includes an assembly part, and the assembly part is detachably embedded in the assembly hole in the center of the assembly ring; by rotating the assembly ring, the The hook and its assembly are fastened at the end of the handle.

In the soft tissue thread passing device proposed by the present invention, the handle is further provided with anti-slip lines.

Compared with the prior art, the present invention has the beneficial effects: the thread passing device of the present invention has a simple structure, is easy to disassemble and replace, and has reliable thread passing performance. The handle adopts ergonomic design, which is convenient and comfortable to use. The slender knife tube and hook structure can provide precise and stable wire-passing performance in a narrow surgical space. The present invention provides hooks with various structures, which can meet the requirements for thread passing in different parts of soft tissue.

Description of drawings

Fig. 1 is a schematic diagram of the soft tissue wire passing device of the present invention.

Fig. 2 is an exploded view of the soft tissue wire passing device of the present invention.

In the figure, 1-handle, 2-hook, 3-roller, 4-housing, 5-shaft, 6-roller rubber ring, 7-screw, 8-slot, 9-assembly ring, 10-flange, 11 - knife tube, 12 - assembly part, 13 - assembly hole.

Detailed ways

The soft tissue wire passing device of the present invention will be described in more detail below in conjunction with schematic diagrams, wherein a preferred embodiment of the present invention is shown, it should be understood that those skilled in the art can modify the present invention described here, and still realize the beneficial effects of the present invention . Therefore, the following description should be understood as the broad knowledge of those skilled in the art, but not as a limitation of the present invention.

As shown in Figure 1 and Figure 2, the soft tissue wire passing device of the present invention includes: a handle 1 and a hook 2, the end of the handle 1 is provided with a wire passing structure, and two frictional friction points are arranged in the wire passing structure. Roller 3, the front end of the thread-passing structure has a thread-passing hole, and the thread-passing hole is directly between the two rollers 3; the hook 2 is connected to the thread-passing structure, and the knife in the middle of the hook 2 There is a hollow passage in the pipe 11, which is directly opposite to the wire passing hole, so that the PDS wire can be passed into the crotch 2 conveniently.

Referring specifically to Fig. 2, the thread passing structure is composed of a space at the end of the handle 1 sunken toward the center and its casing 4. Two symmetrical rotating shafts 5 are arranged in the space, and a roller 3 is set on the rotating shafts 5 respectively. The outer edge of the roller 3 is sunken inward and a roller 3 apron 6 is sleeved in the depression; the roller 3 apron 6 contacts and rubs against each other; The outside protrudes. The shell 4 is fixed to the handle 1 by screws 7 .

The wire passing structure is further arranged transversely through the wire groove 8 on the handle 1, and the middle part of the wire groove 8 is provided with a guide groove bent between the rollers 3, so as to facilitate the introduction of the PDS wire into the wire passing in the hole. The thread passing structure also includes an assembly ring 9 connected to the hook 2 , and the assembly ring 9 is rotatably sleeved on the end of the handle 1 through threads. Both sides of the assembly ring 9 have outwardly protruding flanges 10 . The bottom of the crotch 2 includes a fitting part 12, and the fitting part 12 is detachably embedded in the fitting hole 13 in the center of the fitting ring 9; by rotating the fitting ring 9, the crotch 2 and Its fitting portion 12 is fastened to the end of the handle 1 . Unscrew the assembly ring 9 to the right, put the soft tissue threader hook 2 of required specifications into the assembly hole 13, turn the leftward assembly ring 9 to fix, and the installation of the soft tissue threader is completed. Preferably, the handle 1 is further provided with anti-skid lines.

Example

Step 1: According to the patient's surgical site, height and weight, soft tissue lesions, etc., select the appropriate model/specification of the hook of the wire guide, unscrew the assembly ring to the right, and put the hook of the soft tissue wire guide of the required specification into the handle , the left-handed assembly ring is fixed, and the installation of the soft tissue threader is completed (Figure 2).

Step 2: Insert the medical PDS wire from the fine hole under the roller, and rotate the rollers on both sides downward to pre-load the medical PDS wire into the hook.

Step 3: Locate the soft tissue thread-passing point, and penetrate the soft tissue from the positioning point with the hook of the thread-passing device;

Step 4: Turn the roller on the handle of the thread passer to send the medical PDS suture out from the head of the hook;

Step 5: Tie and fix the suture that needs to pass through the soft tissue and the medical PDS suture;

Step 6: Pull out the soft tissue suture device and pull the suture through the soft tissue;

Step 7: Loosen the suture and the knot of the medical PDS suture to complete the operation of passing the soft tissue.

The thread passing device of the present invention has simple structure, is convenient to disassemble and replace, and has reliable thread passing performance. The handle adopts ergonomic design, which is convenient and comfortable to use. The slender knife tube and hook structure can provide precise and stable wire-passing performance in a narrow surgical space. The present invention provides hooks with various structures, which can meet the requirements for thread passing in different parts of soft tissue.

The foregoing are only preferred embodiments of the present invention, and do not limit the present invention in any way. Any person skilled in the technical field, within the scope of the technical solution of the present invention, makes any form of equivalent replacement or modification to the technical solution and technical content disclosed in the present invention, which does not depart from the technical solution of the present invention. The content still belongs to the protection scope of the present invention.

Claims (8)

1. A soft tissue thread passing device, characterized in that it comprises: a handle and a crotch, the end of the handle is provided with a thread passing structure, and two rollers that rub against each other are arranged in the thread passing structure, and the thread passing structure The front end of the wire structure has a wire-passing hole, and the wire-passing hole is directly between the two rollers; the hook is connected to the wire-passing structure, and a hollow channel is left in the knife tube in the middle of the hook. It is directly opposite to the wire passing hole, so that the PDS wire is conveniently introduced into the hook. 2. The soft tissue thread passing device according to claim 1, characterized in that, the thread passing structure is composed of a space in which the end of the handle is sunken toward the center and its shell, and two symmetrical rotating shafts are arranged in the space, so that The rotating shafts are respectively fitted with a roller, the outer edge of the roller is sunken inward and a roller rubber ring is set in the depression; the roller rubber ring contacts and rubs against each other; protruding. 3. The soft tissue wire passing device according to claim 2, wherein the outer casing is fixed to the handle by screws. 4. The soft tissue thread passing device according to claim 2, characterized in that, the thread passing structure further comprises a wire slot arranged transversely through the handle, and the middle part of the wire slot is provided with a The curved guide groove between them facilitates the introduction of the PDS wire into the wire passing hole. 5. The soft tissue thread passing device according to claim 1, wherein the thread passing structure further comprises an assembly ring connected to the hook, and the assembly ring is rotatably sleeved on the handle by threads. Ends. 6 . The soft tissue wire passing device according to claim 5 , wherein the two sides of the assembly ring have outwardly protruding flanges. 7. The soft tissue thread passing device according to claim 5, characterized in that, the bottom of the hook includes an assembly part, and the assembly part is detachably snapped into the assembly hole in the center of the assembly ring; Rotating the fitting ring secures the hook and its fitting portion at the end of the handle. 8. The soft tissue thread passing device according to claim 1, wherein the handle is further provided with anti-slip lines.