CN212466111U

CN212466111U - Novel needle knife for treating tenosynovitis stenotrophis of flexor tendon

Info

Publication number: CN212466111U
Application number: CN202020408805.0U
Authority: CN
Inventors: 唐光平; 张磊
Original assignee: WUHAN HOSPITAL OF TRADITIONAL CHINESE MEDICINE
Current assignee: WUHAN HOSPITAL OF TRADITIONAL CHINESE MEDICINE
Priority date: 2020-03-26
Filing date: 2020-03-26
Publication date: 2021-02-05
Anticipated expiration: 2030-03-26

Abstract

The utility model relates to the technical field of needle knives, in particular to a novel needle knife for treating tenosynovitis stenotrophis of flexor tendons, which comprises a knife handle, wherein a knife body is arranged on the left side surface of the knife handle close to the bottom end, and the end part of the knife body is provided with a knife head; the cutter body is provided with a groove at the left end, a strip-shaped groove is formed in the top surface of the cutter body close to the cutter handle, a sliding groove is formed in the cutter body, and one end of the sliding groove extends into the groove; the novel needle knife for treating tenosynovitis stenotrophis of the flexor tendon is convenient for accurately cutting the thickened pulley, and can effectively avoid the problems of tendon rupture and nerve vessel injury while treating tenosynovitis; this novel needle sword is on a parallel with the tendon and advances the needle, after arriving the coaster of bodiness, makes the front end cutting edge erect through the trigger, makes cutting edge and tendon angulation, can only cut the coaster of the bodiness of tendon sheath top to the tendon sheath is loosened, neurovascular damage is avoided.

Description

Novel needle knife for treating tenosynovitis stenotrophis of flexor tendon

Technical Field

The utility model relates to a needle sword technical field specifically is a novel needle sword of treatment flexor tendon stenosing tenosynovitis.

Background

Tenosynovitis caused by flexor tendon stenosis is also called trigger finger, and is a common disease of the finger, which is caused by excessive friction between tendon and tendon sheath due to frequent activity or trauma of the finger, and causes pathological changes such as tendon sheath hyperplasia, hypertrophy, adhesion and the like. Most scholars attribute their etiology to chronic strain, and believe that prolonged mechanical rubbing results in aseptic inflammation of the local area of the tendon sheath, which in turn causes stenosis of the fibrous canal sheath. The needle knife is a common apparatus for treating tenosynovitis stenotrophis of flexor tendons, and the needle knife treatment is gradually widely accepted and popularized due to unique advantages of definite curative effect, small wound surface, short treatment period, simplicity, convenience and the like, but the traditional needle knife easily causes tendon fracture and nerve vessel injury when in use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel needle sword of treatment flexor tendon stenosing tenosynovitis to solve the problem that provides in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a novel needle knife for treating tenosynovitis stenotrophis of flexor tendons comprises a knife handle, a knife body is arranged on the left side surface of the knife handle close to the bottom end, and a knife head is arranged at the end part of the knife body; the cutter body is provided with a groove at the left end, a strip-shaped groove is formed in the top surface of the cutter body close to the cutter handle, a sliding groove is formed in the cutter body, one end of the sliding groove extends into the groove, a toothed plate is arranged in the sliding groove in a sliding connection mode, a spring is arranged at the right end of the toothed plate, and two ends of the spring are fixedly connected with the right end of the toothed plate and the inner wall of the right side of the sliding groove respectively; a cutting assembly is arranged at the groove; an adjusting component is arranged in the strip-shaped groove; the cutting assembly comprises a first gear, the first gear is meshed with the toothed plate, protruding shafts are coaxially arranged on the front side face and the rear side face of the first gear, a cutter is further embedded in the first gear, protruding blocks are arranged on the protruding shafts and are rotatably connected with the protruding shafts through bearings, and the protruding blocks are fixedly connected with the cutter body.

Preferably, the adjusting part is including the trigger that is vertical setting, the bottom of trigger is inlayed and is equipped with the second gear, the second gear with pinion rack meshes mutually, the coaxial connecting rod that is equipped with on the front and back side of second gear, just the one end of connecting rod pass through the bearing with the inner wall rotation of bar groove is connected.

Preferably, the size of the toothed plate is adapted to the size of the runner.

Preferably, the knife handle is sleeved with a rubber sleeve.

Preferably, the cutter body and the cutter head are of an integrally formed structure.

Preferably, the overall shape of the cutter body is elliptical.

Compared with the prior art, the beneficial effects of the utility model are that: the novel needle knife for treating tenosynovitis stenotrophis of the flexor tendon is convenient for accurately cutting the thickened pulley, and can effectively avoid the problems of tendon rupture and nerve vessel injury while treating tenosynovitis; this novel needle sword is on a parallel with the tendon and advances the needle, after arriving the coaster of bodiness, makes the front end cutting edge erect through the trigger, makes cutting edge and tendon angulation, can only cut the coaster of the bodiness of tendon sheath top to the tendon sheath is loosened, neurovascular damage is avoided.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of a part of the structure of the present invention;

FIG. 3 is a sectional view of the overall structure of the present invention;

fig. 4 is a structural sectional view of the cutter body of the utility model;

FIG. 5 is a schematic structural view of the middle cutting assembly of the present invention;

fig. 6 is a schematic structural diagram of the adjusting assembly of the present invention.

In the figure: 1. a knife handle; 2. a cutter body; 21. a groove; 22. a strip-shaped groove; 23. a chute; 24. a toothed plate; 25. a spring; 3. a cutter head; 4. a cutting assembly; 41. a first gear; 42. a cutter; 43. a protruding shaft; 44. a bump; 5. an adjustment assembly; 51. a trigger; 52. a second gear; 53. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Example 1

A novel needle knife for treating tenosynovitis stenotrophis of flexor tendons, as shown in figures 1 to 6, comprises a knife handle 1, a knife body 2 is arranged on the left side surface of the knife handle 1 near the bottom end, and a knife head 3 is arranged at the end part of the knife body 2; the cutter body 2 is provided with a groove 21 at the left end, a strip-shaped groove 22 is formed at the top surface of the cutter body 2 close to the cutter handle 1, a sliding groove 23 is formed in the cutter body 2, one end of the sliding groove 23 extends into the groove 21, a toothed plate 24 is arranged in the sliding groove 23 in a sliding connection manner, a spring 25 is arranged at the right end of the toothed plate 24, two ends of the spring 25 are respectively fixedly connected with the right end of the toothed plate 24 and the right inner wall of the sliding groove 23, and two ends of the spring 25 are respectively tightly bonded with the right end of the toothed plate 24 and the right inner wall of; the cutting assembly 4 is arranged at the groove 21; the strip-shaped groove 22 is internally provided with an adjusting component 5; the cutting assembly 4 comprises a first gear 41, the first gear 41 is meshed with the toothed plate 24, a protruding shaft 43 is coaxially arranged on the front side surface and the rear side surface of the first gear 41, the protruding shaft 43 is coaxially and tightly bonded with the first gear 41, a cutter 42 is further embedded in the first gear 41, a convex block 44 is arranged on the protruding shaft 43, the convex block 44 is rotatably connected with the protruding shaft 43 through a bearing, the convex block 44 is fixedly connected with the cutter body 2, and the convex block 44 is tightly bonded with the cutter body 2. Adjusting part 5 is including being the trigger 51 of vertical setting, and trigger 51's bottom inlays and is equipped with second gear 52, and second gear 52 meshes with pinion rack 24 mutually, and the coaxial connecting rod 53 that is equipped with on the front and back side of second gear 52, and connecting rod 53 bonds with the coaxial inseparable of second gear 52, and the one end of connecting rod 53 is passed through the bearing and is connected with the inner wall rotation of bar groove 22.

In this embodiment, the size of the tooth plate 24 is adapted to the size of the slide slot 23, which facilitates the sliding of the tooth plate 24 within the slide slot 23.

In this embodiment, the handle 1 is sleeved with a rubber sleeve, which increases the friction between the hand and the handle 1, thereby facilitating the operation.

Further, cutter body 2 and tool bit 3 are integrated into one piece structure, and integrated into one piece structure has better structural strength, increases the security of operation implementation.

In addition, the overall shape of the cutter body 2 is oval, and the oval cutter body 2 is convenient to enter the tendon along with the cutter head 3 to perform an operation.

The novel needle sword of treatment flexor digitorum stenosing tenosynovitis of this embodiment is when using, the at first accurate positioning coaster of user, go on local infiltration anesthesia simultaneously, tool bit 3 pierces the skin perpendicularly this moment, needle point resistance is obvious to have pricked the tendinous sheath when falling empty sense suddenly again promptly, user pulls trigger 51 to handle of a knife 1 one side this moment, trigger 51 drives second gear 52 and rotates, pinion rack 24 slides to tool bit 3 one side in spout 23 this moment, spring 25 is stretched, pinion rack 24 moves and drives first gear 41 and rotate, first gear 41 rotates and drives cutter 42 and rotate, when cutter 42 upward movement, cutter 42 cuts the sheath tissue of bodiness, after the tendinous sheath tissue of bodiness is cut off, user loosens trigger 51, spring 25 resets and drives pinion rack 24 and resets, trigger 51 and cutter 42 reset simultaneously.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A novel needle knife for treating tenosynovitis stenotrophis of flexor tendons, comprises a knife handle (1), and is characterized in that: a cutter body (2) is arranged on the left side surface of the cutter handle (1) close to the bottom end, and a cutter head (3) is arranged at the end part of the cutter body (2); a groove (21) is formed in the left end of the cutter body (2), a strip-shaped groove (22) is formed in the position, close to the cutter handle (1), of the top surface of the cutter body (2), a sliding groove (23) is formed in the cutter body (2), one end of the sliding groove (23) extends into the groove (21), a toothed plate (24) is arranged in the sliding groove (23) in a sliding connection mode, a spring (25) is arranged at the right end of the toothed plate (24), and two ends of the spring (25) are fixedly connected with the right end of the toothed plate (24) and the inner wall of the right side of the sliding groove (23) respectively; a cutting assembly (4) is arranged at the groove (21); an adjusting component (5) is arranged in the strip-shaped groove (22); the cutting assembly (4) comprises a first gear (41), the first gear (41) is meshed with the toothed plate (24), a protruding shaft (43) is coaxially arranged on the front side surface and the rear side surface of the first gear (41), a cutter (42) is further embedded on the first gear (41), a protruding block (44) is arranged on the protruding shaft (43), the protruding block (44) is rotatably connected with the protruding shaft (43) through a bearing, and the protruding block (44) is fixedly connected with the cutter body (2).

2. The novel needle-knife for the treatment of tenosynovitis stenotrophis according to claim 1, characterized in that: adjusting part (5) is including trigger (51) that is vertical setting, the bottom of trigger (51) is inlayed and is equipped with second gear (52), second gear (52) with pinion rack (24) mesh mutually, coaxial connecting rod (53) that are equipped with on the front and back side of second gear (52), just the one end of connecting rod (53) pass through the bearing with the inner wall rotation of bar groove (22) is connected.

3. The novel needle-knife for the treatment of tenosynovitis stenotrophis according to claim 1, characterized in that: the size of the toothed plate (24) is matched with that of the sliding groove (23).

4. The novel needle-knife for the treatment of tenosynovitis stenotrophis according to claim 1, characterized in that: the knife handle (1) is sleeved with a rubber sleeve.

5. The novel needle-knife for the treatment of tenosynovitis stenotrophis according to claim 1, characterized in that: the cutter body (2) and the cutter head (3) are of an integrally formed structure.

6. The novel needle-knife for the treatment of tenosynovitis stenotrophis according to claim 1, characterized in that: the overall shape of the cutter body (2) is oval.