Micro needle knife

Abstract

The utility model discloses a microacupotomy, which relates to the technical field of medical instruments and comprises an acupotomy handle, an acupotomy body and an acupotomy head, a plurality of needle storage cavities are arranged in the acupotomy handle, and needle outlet through holes matched with the needle storage cavities are arranged at the lower end of the acupotomy handle. A limiting piece used for adjusting the knife outlet length of the needle knife body is arranged between the needle tube and the needle knife handle. The holding part, the needle outlet part, the needle tube and the limiting piece are matched with one another, so that the needle knife can be stored, replaced and adjusted in length; clinical use requirements are met, and operation efficiency is improved. The micro-needle knife can effectively solve the problems that an existing micro-needle knife is single in function, and the needle knife cannot be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a micro-needle knife. Background Art

[0002] At present, the main treatment methods for various diseases in clinical practice include drugs, acupuncture and surgery. Drugs and acupuncture have certain effects on certain functional diseases, but drugs have adverse side effects on the human body, big or small; although acupuncture has almost no adverse effects, it can only be used for lifting, inserting, twisting, but not for peeling, cutting and other operations. It is powerless for old chronic soft tissue injuries, fracture malformation, bone hyperplasia and other lesions, and can only be treated with surgery. However, surgical operations are complicated, the incision is long, the normal tissue is seriously damaged, the patient suffers a lot, the treatment cost is high, and there are different degrees of sequelae and complications, which sometimes cause lifelong disability or even life-threatening to the patient.

[0003] The small needle knife is a commonly used surgical instrument in clinical practice. The flat blade at the tip of the needle knife can loosen and peel off tissue adhesions, loosen the relevant compressed blood vessels and nerve bundles, restore the imbalance between soft tissue and bone tissue, and relieve pain. The needle knife used in clinical practice is shaped like a needle and a knife. It is usually composed of a needle knife handle, a needle knife body and a needle knife head. It has a simple structure and does not have the function of replacing the needle knife. The needle knife is placed on the operating table after one use. When it is used again, it needs to be disinfected before it can be used or a new needle knife is directly taken away, which seriously affects the efficiency of the operation.

[0004] In view of the above problems, it is urgent to develop a microneedle knife with the function of replacing the needle knife. Summary of the invention

[0005] In order to overcome the problem that the existing micro-needle knife has a single function and cannot be replaced, the utility model provides a micro-needle knife, wherein a plurality of needle storage cavities are arranged inside the needle knife handle to store the needle knife body; a needle tube and a limiter are arranged at the bottom of the needle knife handle to stabilize and adjust the needle length of the needle knife body; the purpose of the utility model is mainly achieved through the following scheme:

[0006] A micro-needle knife comprises a needle knife handle, a needle knife body and a needle knife head, wherein the needle knife handle is provided with a plurality of needle storage cavities, and the lower end of the needle knife handle is provided with a needle outlet through hole matching the needle storage cavities; and the needle tube is also included, and a limiter for adjusting the outlet length of the needle knife body is provided between the needle tube and the needle knife handle.

[0007] Furthermore, the needle knife handle includes a gripping portion and a needle outlet portion, and the needle outlet portion is detachably connected to the lower end of the gripping portion; a plurality of needle storage cavities penetrate the front end of the gripping portion, and the needle outlet through hole is arranged on the needle outlet portion and is correspondingly connected to the needle storage cavities.

[0008] Furthermore, a clamping protrusion is provided on the top of the needle outlet portion, and the clamping protrusion matches the needle storage cavity; and the needle outlet through hole passes through the clamping protrusion and the needle outlet portion.

[0009] Furthermore, the limiting member includes a nut, the upper end of the nut is rotatably connected to the needle outlet portion, and the lower end of the nut is connected to the needle tube.

[0010] Furthermore, the needle knife body includes a rectangular block, a threaded portion and a puncture portion which are connected in sequence, the rectangular block is adapted to the needle storage cavity; and the threaded portion is adapted to the nut.

[0011] Furthermore, a cap is hinged on the top of the needle knife handle.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The needle knife handle is provided with a holding part and a needle outlet part, and a plurality of needle storage cavities are provided inside the holding part to store the needle knife body; a clamping protrusion is provided at the upper end of the needle outlet part, and a needle outlet through hole is provided in the clamping protrusion which is interconnected with the needle outlet part, and the needle outlet through hole cooperates with the corresponding needle storage cavity to realize the smooth sliding out of the needle knife body;

[0014] 2. A needle tube is rotatably arranged below the needle outlet, and the needle tube is used to stabilize the needle knife body. A nut is arranged at the upper end of the needle tube to adjust the needle outlet length of the needle knife body. The storage, replacement and length adjustment of the needle knife can be realized through the cooperation of the grip, the needle outlet, the needle tube and the nut, so as to meet the clinical use requirements and improve the surgical efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 for Figure 1 A cross-sectional view of

[0017] Figure 3 for Figure 2 Exploded diagram of

[0018] Figure 4 It is a top view of the grip portion;

[0019] Figure 5 It is a top view of the needle exit portion;

[0020] In the figure:

[0021] 1 needle knife handle; 11 gripping part; 12 needle outlet part; 121 clamping protrusion; 2 needle knife body; 21 rectangular block; 22 threaded part; 23 puncture part; 3 needle tube; 41 needle storage cavity; 42 needle outlet through hole; 5 nut; 6 cover cap. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1-5 As shown, a micro-needle knife comprises a needle knife handle 1, a needle knife body 2 and a needle knife head, wherein the needle knife handle 1 is provided with a plurality of needle storage cavities 41, and the lower end of the needle knife handle 1 is provided with a needle outlet through hole 42 matching the needle storage cavities 41; and further comprising a needle tube 3, wherein a stopper is provided between the needle tube 3 and the needle knife handle 1 for adjusting the outlet length of the needle knife body 2. The needle outlet through hole 42 cooperates with the corresponding needle storage cavity 41 for the needle knife body 2 to slide into the needle tube 3.

[0024] Furthermore, the needle knife handle 1 includes a gripping portion 11 and a needle outlet portion 12, and the needle outlet portion 12 is detachably connected to the lower end of the gripping portion 11; a plurality of needle storage cavities 41 pass through the front end of the gripping portion 11, and the needle outlet through hole 42 is arranged on the needle outlet portion 12 and is correspondingly connected to the needle storage cavity 41.

[0025] Furthermore, a clamping protrusion 121 is provided on the top of the needle outlet portion 12 , and the clamping protrusion 121 matches the needle storage cavity 41 ; the needle outlet through hole 42 passes through the clamping protrusion 121 and the needle outlet portion 12 .

[0026] The three needle storage cavities 41 are centrally symmetrically arranged inside the holding portion 11, and the cross-section of the needle storage cavity 41 is rectangular; the snap-in protrusion 121 is inserted into the needle storage cavity 41, and the interference fit between the two realizes a detachable connection between the holding portion 11 and the needle outlet portion 12; the snap-in protrusion 121 is arranged on the needle outlet portion 12, and when the direction of the needle outlet portion 12 is switched, the snap-in protrusion 121 can be respectively connected with the plurality of needle storage cavities 41 corresponding to each other; the needle outlet through hole 42 and the corresponding needle storage cavity 41 cooperate with each other to realize the smooth sliding out of the needle knife body 2; the needle knife body 2 slides out of the needle outlet through hole 42 and is fixed by a limit piece.

[0027] Furthermore, the limiting member includes a nut 5 , the upper end of the nut 5 is rotatably connected to the needle outlet portion 12 , and the lower end of the nut 5 is fixedly connected to the needle tube 3 .

[0028] Furthermore, the needle knife body 2 includes a rectangular block 21 , a threaded portion 22 and a puncture portion 23 which are connected in sequence. The rectangular block 21 is adapted to the needle storage cavity 41 ; and the threaded portion 22 is adapted to the nut 5 .

[0029] The cross-section of the needle storage cavity 41 is rectangular, and the rectangular block 21 on the top of the needle knife body 2 is slidably set inside the needle storage cavity 41. The rectangular needle storage cavity 41 and the rectangular block 21 cooperate with each other to limit the top of the needle knife body 2 to prevent the inclined surface of the needle knife head from rotating during the process of loosening and peeling the tissue; the needle knife body 2 as a whole is limited by the needle storage cavity 41, the needle outlet hole 42 and the needle tube 3, and is stable and firm, and will not swing or move.

[0030] Furthermore, a cap 6 is hinged on the top of the needle knife handle 1 .

[0031] The top of the needle knife handle 1 is hinged with a cover cap 6, which is used to seal the upper opening of the needle storage cavity 41 to prevent the needle knife body 2 from sliding off the end, and at the same time, facilitate the removal and disinfection of the needle knife body 2.

[0032] The following describes the method of use of the utility model.

[0033] When it is necessary to replace the needle knife body 2 of the micro-needle knife of the utility model, the needle knife head is directed upward, and the needle outlet portion 12 is removed from the top of the grip portion 11. After the direction of the needle outlet portion 12 is switched so that the snap-on protrusion 121 is aligned with the corresponding needle storage cavity 41, the snap-on protrusion 121 is inserted into the needle storage cavity 41; the direction of the needle knife head is turned downward, and at this time, the needle knife body 2 slides down along the needle storage cavity 41 until the threaded portion 22 is located above the nut 5, and the needle knife body 2 stops automatically sliding down; then, the lower end of the needle knife body 2 is pulled by hand, and the needle knife body 2 is turned to the left and right sides. Turn the nut 5 to make the threaded portion 22 threadedly connected with the nut 5, and then loosen the lower end of the needle knife body 2; continue to turn the nut 5, and the threaded portion 22 drives the needle knife body 2 to move downward as a whole under the action of the nut 5; the knife extension length of the needle knife body 2 can be adjusted by adjusting the nut 5 to meet different usage requirements; after the needle knife body 2 is used, turn the nut 5 to retract the needle knife body 2 into the corresponding needle tube 3; when it is necessary to disinfect the needle knife body 2 after use, open the cap 6 and pour the needle knife body 2 out of the needle storage cavity 41 in the opposite direction.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A micro-needle knife, comprising a needle knife handle (1), a needle knife body (2) and a needle knife head, characterized in that: The needle knife handle (1) is provided with a plurality of needle storage cavities (41), and the lower end of the needle knife handle (1) is provided with a needle outlet through hole (42) matching the needle storage cavities (41); the needle knife handle also includes a needle tube (3), and a stopper for adjusting the outlet length of the needle knife body (2) is provided between the needle tube (3) and the needle knife handle (1).

2. A microneedle knife according to claim 1, characterized in that: The needle knife handle (1) comprises a gripping portion (11) and a needle outlet portion (12), wherein the needle outlet portion (12) is detachably connected to the lower end of the gripping portion (11); a plurality of needle storage cavities (41) penetrate the front end of the gripping portion (11), and the needle outlet through hole (42) is arranged on the needle outlet portion (12) and is correspondingly communicated with the needle storage cavities (41).

3. A microneedle knife according to claim 2, characterized in that: A clamping protrusion (121) is provided on the top of the needle outlet portion (12), and the clamping protrusion (121) matches the needle storage cavity (41); the needle outlet through hole (42) penetrates the clamping protrusion (121) and the needle outlet portion (12).

4. A microneedle knife according to claim 3, characterized in that: The limiting member comprises a nut (5), the upper end of the nut (5) is rotatably connected to the needle outlet portion (12), and the lower end of the nut (5) is connected to the needle tube (3).

5. A microneedle knife according to claim 4, characterized in that: The needle knife body (2) comprises a rectangular block (21), a threaded portion (22) and a puncture portion (23) which are connected in sequence; the rectangular block (21) is adapted to fit the needle storage chamber (41); and the threaded portion (22) is adapted to fit the nut (5).

6. A microneedle knife according to claim 5, characterized in that: A cover cap (6) is hingedly connected to the top of the needle knife handle (1).

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