Bushhook for tenosynovitis operation

Abstract

The utility model relates to a tenosynovitis operation bush-hook which comprises a miniature barb, a needle body and a connecting vertebral body, the miniature barb is fixedly connected to the front end of the needle body, the connecting vertebral body is fixedly connected to the rear end of the needle body, a cutting edge is arranged at a notch of the miniature barb, and the tenosynovitis operation bush-hook has the technical effect of cutting a tendon sheath at a time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of surgical instruments, in particular to a tenosynovitis surgical hook knife. BACKGROUND

[0002] The tendon sheath is a double-layer sleeve-like airtight synovial tube wrapped outside the tendon, which is a synovial sheath protecting the tendon. It is wrapped around the tendon in two layers, with a cavity between the two layers, i.e. a synovial cavity, which contains tendon sheath synovial fluid. The inner layer is closely attached to the tendon, and the outer layer is lined in the tendon fibrous sheath, which is combined with the bone surface, has the functions of fixation, protection and lubrication of the tendon, and can prevent the tendon from friction or compression. Excessive friction between the tendon and the tendon sheath can cause damage to the tendon and the tendon sheath, resulting in tenosynovitis, which shows symptoms such as local pain, tenderness, and limited joint movement.

[0003] There are three main physical therapy options for tenosynovitis: first, local immobilization, the affected part can be fixed with a splint or cast to limit movement; second, external medication, including Voltaren; third, physiotherapy and hot compress, which can promote inflammation absorption. Glucocorticoids and local anesthetics can also be injected into the tendon sheath for closed treatment. If the closed treatment is still ineffective, the patient can choose needle-knife treatment to release the adhesion between the tendon and the tendon sheath, or completely cut open the hyperplastic tendon sheath to reduce pressure, which can achieve complete cure.

[0004] The needle-knife treatment involves the required needle-knife instrument. Most of the current needle-knives are designed with a flat blade, which can achieve ultrasonic visualization, but due to its smooth needle body structure, it cannot completely cut the tendon sheath in one time, which brings great inconvenience to clinical treatment, and repeated insertion of the needle-knife also increases the pain of the patient.

[0005] In view of the above related technology, the utility model person believes that it is necessary to design a surgical instrument for one-time cutting of the tendon sheath. CONTENT OF THE UTILITY MODEL

[0006] In order to solve the above technical problems, the present application provides a tenosynovitis surgical hook knife.

[0007] The present application provides a tenosynovitis surgical hook knife, which adopts the following technical scheme:

[0008] A tenosynovitis surgical hook knife, comprising a micro barb, a needle body and a connecting vertebra, the micro barb is fixedly connected to the front end of the needle body, the connecting vertebra is fixedly connected to the rear end of the needle body, and the notch of the micro barb is provided with a cutting edge.

[0009] By adopting the above technical scheme, when the tendon sheath needs to be cut off during the tenosynovitis surgery, the needle body is inserted into the inside, and the tendon sheath between the corresponding tendon and the tendon sheath can be cut off at one time when it is pulled back, so as to achieve the effect of complete cure, and the pain of the operator during the operation can be reduced.

[0010] Preferably, an inlay groove is formed along the length direction of the needle body on the side of the micro barb, the inlay groove extends to the micro barb and divides the micro barb into two independent hooks, and the cutting edge is arranged in the inlay groove and fixedly connected with the needle body.

[0011] By adopting the above technical scheme, the inlay groove is formed and the cutting edge is arranged in the inlay groove instead of being integrally formed, so that the cutting edge can be separately processed, and the cutting edge can be more sharp and can be easily replaced.

[0012] Preferably, a chamfer structure is formed at the tip of the micro barb to make the tip round.

[0013] By adopting the above technical scheme, the chamfer structure is arranged to reduce the additional damage to the tendon of the human body when the needle body is inserted.

[0014] Preferably, the cross section of the cutting edge is triangular.

[0015] Preferably, the cutting edge protrudes from the needle body, and an inclined slope is formed at the position of the cutting edge away from the micro barb.

[0016] By adopting the above technical scheme, the cutting edge protruding from the needle body can make the cutting line longer, facilitating the overall cutting, and the inclined slope can make the cutting edge easier to perform the cutting action, and the operation is more simple and convenient.

[0017] Preferably, one end of the cutting edge is fixedly connected with a connecting seat, and the connecting seat is fixedly connected with the micro barb by welding.

[0018] By adopting the above technical scheme, the connecting seat can facilitate the installation and disassembly of the cutting edge, and when the cutting edge is fixed in the inlay groove of the micro barb by welding, the cutting edge can be fixed with the micro barb without damaging the cutting edge, thereby improving the service life of the cutting edge.

[0019] Preferably, a handle is fixedly connected with the tail end of the connecting body.

[0020] By adopting the above technical scheme, the handle can facilitate the grasping of the needle body, and the micro barb can be stably inserted into the corresponding position, thereby improving the operation efficiency.

[0021] Preferably, an anti-skid sleeve is sleeved on the handle, and an anti-skid pattern is arranged on the anti-skid sleeve.

[0022] By adopting the above technical scheme, the anti-skid sleeve can further improve the stability of the gripping.

[0023] To sum up, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When the operation of tendon sheath inflammation needs to cut off the tendon sheath, by inserting the needle body into the inside and being able to cut off the tendon sheath between the corresponding tendon and tendon sheath at one time when being pulled back, the effect of radical cure is achieved, and the pain of the operator during the operation is reduced;

[0025] 2. The inlaid groove is opened and the cutting edge is arranged in the inlaid groove instead of being integrally formed, and the cutting edge is separately processed at this time, so that the cutting edge can be processed more sharp, and the cutting edge can be replaced conveniently. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the embodiment;

[0027] Figure 2 is Figure 1 is an enlarged view of part A in

[0028] Figure 3 is a schematic diagram of the inlaid groove structure in the embodiment;

[0029] Figure 4 is Figure 3 is an enlarged view of part B in

[0030] Explanation of reference signs: 1, micro barb; 11, hook; 12, chamfer structure; 2, needle body; 21, inlaid groove; 22, cutting edge; 221, inclined surface; 222, connecting seat; 3, connecting vertebra; 4, handle; 41, anti-slip sleeve; 42, anti-slip pattern. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings Figures 1-4 The present application will be further described in detail.

[0032] The embodiment of the present application discloses a hook knife for tendon sheath inflammation operation, referring to Figure 1 and Figure 2 , comprising a micro barb 1, a needle body 2 and a connecting vertebra 3; wherein the micro barb 1 is fixedly connected to the front end of the needle body 2, the connecting vertebra 3 is fixedly connected to the rear end of the needle body 2, and a handle 4 is fixedly connected to the tail end of the connecting vertebra 3, an anti-slip sleeve 41 is sleeved on the handle 4, and an anti-slip pattern 42 is arranged on the anti-slip sleeve 41.

[0033] Referring to Figure 3 and Figure 4The long strip-shaped inlay groove 21 is extended to the micro barb 1 and divides the micro barb 1 into two independent hooks 11, and the two hooks 11 are provided with chamfer structure 12 on the back side, so that the whole formed by the two hooks 11 becomes round to prevent the sharp part from scratching the tendon.

[0034] Looking back Figure 2 The cutting blade 22 is provided in the inlay groove 21, the cross section of the cutting blade 22 is triangular, the cutting edge of the cutting blade 22 protrudes from the inlay groove 21, and the position of the cutting blade 22 away from the micro barb 1 is provided with an inclined inclined surface 221, so that the protruding part of the cutting blade 22 is smoothly transitioned to the surface of the needle body 2; the connecting seat 222 is fixedly connected at the position of the cutting blade 22 corresponding to the micro barb 1, the connecting seat 222 is matched with the inlay groove 21 and fills the inlay groove 21 completely; the connecting seat 222 is welded and fixed on the micro barb 1, at this time, since the cutting blade 22 is fixedly connected on the connecting seat 222, the cutting blade 22 is stably fixed and will not be damaged.

[0035] The above are the preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A tenosynovitis operating hook-knife, characterized in that: The micro barb (1) is fixedly connected to the front end of the needle body (2), the connecting vertebra (3) is fixedly connected to the rear end of the needle body (2), and the notch of the micro barb (1) is provided with a cutting edge (22); the needle body (2) on the side of the micro barb (1) is provided with an inlay groove (21) extending in the length direction, the inlay groove (21) extends to the micro barb (1) and divides the micro barb (1) into two independent hooks (11), and the cutting edge (22) is arranged in the inlay groove (21) and fixedly connected with the needle body (2).

2. A tenovaginitis hook knife according to claim 1, characterized in that: The tip of the micro barb (1) is provided with a chamfer structure (12) to make the tip round.

3. A tenovaginitis hook knife according to claim 1, characterized in that: The cross section of the cutting edge (22) is triangular.

4. The tenovaginitis hook knife according to claim 1, characterized in that: The cutting edge (22) protrudes from the needle body (2), and an inclined slope (221) is arranged at the position of the cutting edge (22) away from the micro barb (1).

5. The tenovaginitis hook knife according to claim 1, wherein: One end of the cutting edge (22) is fixedly connected with a connecting seat (222), and the connecting seat (222) is welded and fixedly connected with the micro barb (1).

6. A tenovaginitis hook knife according to claim 1, wherein: The tail end of the connecting vertebra (3) is fixedly connected with a handle (4).

7. A tenovaginitis hook knife according to claim 6, characterized in that: A non-slip sleeve (41) is arranged on the handle (4), and a non-slip pattern (42) is arranged on the non-slip sleeve (41).

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