CN219680733U

CN219680733U - Novel needle knife

Info

Publication number: CN219680733U
Application number: CN202320841260.6U
Authority: CN
Inventors: 李展新
Original assignee: Foshan Shunde Shangbentang Traditional Chinese Medicine Outpatient Department Co ltd
Current assignee: Foshan Shunde Shangbentang Traditional Chinese Medicine Outpatient Department Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-09-15
Anticipated expiration: 2033-04-17

Abstract

The utility model relates to the field of surgical instruments, in particular to a novel needle knife which comprises a handheld part and a needle body, wherein the needle body comprises a first needle section, a second needle section and a third needle section which are sequentially connected; the first needle section is connected to the handheld part and is of a straight structure; the second needle section is connected into a straight structure, the first needle section and the second needle section form a reference surface, and an included angle between the second needle section and the first needle section is 110-150 degrees; the third needle section stretches out along the direction perpendicular to the reference surface and then bends towards the direction where the first needle section is located to form an arc section, the central angle of the arc section is 65-115 degrees, the total length of the third needle section is 10-20mm, the tail end of the third needle section is provided with a knife tip, and the side face of the third needle section is provided with a lateral knife edge facing the direction where the hand-held part is located. The novel needle knife is convenient to use for subclavian muscle relaxing operation and high in safety.

Description

Novel needle knife

Technical Field

The utility model relates to the technical field of surgical instruments, in particular to a novel needle knife.

Background

After a patient performs a great deal of exercise, subclavian muscles become hypertrophic and press nerves, so that the hands of the patient often feel paralyzed. If the connection between the subclavian muscle and the bone is cut off, the subclavian muscle is loosened, the nerve compression is relieved, and the hand paralysis problem is solved.

Currently, needle-knife is used to perform subclavian muscle relaxing surgery. The needle knife is adopted to pierce from the front lower part of the patient's collarbone to the connection position between the collarbone and the subclavian muscle during operation, and the needle knife is used for point by point to pierce the connection point between the subclavian muscle and the collarbone, so that the purpose of loosening can be achieved.

However, arteries exist in the lower rear of the collarbone, while the current needle knife is straight and is provided with a lateral blade only at the front end, based on the structural characteristics of the current needle knife, if the needle knife is penetrated too deeply, there is a possibility of puncturing and puncturing the arteries, and there is a safety risk, and therefore, a new needle knife needs to be developed to be specially used for the subclavian muscle relaxing operation.

Disclosure of Invention

The utility model aims to provide a novel needle knife, which aims to solve the problem that an artery may be pricked or pierced in subclavian muscle opening operation.

In order to achieve the above purpose, the utility model provides a novel needle knife, which comprises a hand-held part and a needle body, wherein the needle body comprises a first needle section, a second needle section and a third needle section which are sequentially connected; the first needle section is connected to the handheld part and is of a straight structure; the second needle section is connected into a straight structure, the first needle section and the second needle section form a reference surface, and an included angle between the second needle section and the first needle section is 110-150 degrees; the third needle section is bent towards the direction where the first needle section is located after extending along the direction perpendicular to the reference surface to form an arc section, the total length of the third needle section is 10-20mm, the tail end of the third needle section is provided with a knife tip, and the side face of the third needle section is provided with a lateral knife edge facing the direction where the handheld part is located.

Further, the second needle section has a length of 10-20mm.

Further, the first needle section and the second needle section are circular in cross section and have a diameter of 0.8-1.2mm.

Further, a rounded transition is provided between the first needle section and the second needle section, and a rounded transition is provided between the second needle section and the third needle section.

Further, the radius transition diameter between the second needle section and the third needle section is 5-10mm.

Further, the surface of the hand-held part is provided with an anti-slip structure.

Further, the plane where the anti-skid texture is located is parallel to the direction of orientation of the lateral blade.

Further, the total length of the hand-held part and the first needle section is 30-100mm.

Further, the central angle of the arc section is 65-115 degrees.

The knife point of the third needle section of the novel needle knife is used for penetrating the skin of a patient so that the needle body can be penetrated into the patient, and the lateral knife edge is responsible for cutting off the connection point between subclavian muscle and clavicle. When in operation, the needle knife is inserted from the rear upper part of the collarbone, and the front chest of a patient is often penetrated, so that the artery positioned at the rear lower part of the collarbone can be avoided, the circular arc section and the length of the third needle section are designed according to the approximate shape and the width of the collarbone of a human body, and the artery of the patient can not be penetrated by the third needle section with the length under the condition that the second needle section is propped against the rear side surface of the collarbone, so that the safety is high.

Drawings

FIG. 1 is a schematic illustration of the connection between the subclavian muscle and the first rib;

FIG. 2 is a perspective view of the novel needle knife of the present utility model;

FIG. 3 is a second perspective view of the novel needle knife of the present utility model;

FIG. 4 is a perspective view III of the novel needle knife of the present utility model;

FIG. 5 is a front view of the novel needle knife of the present utility model;

FIG. 6 is a top view of the novel needle knife of the present utility model;

FIG. 7 is a cross-sectional view of a first needle section and a second needle section;

fig. 8 is a cross-sectional view of a third needle segment.

[ reference numerals description ]

01. Subclavian muscle; 02. a collarbone; 1. a hand-held part; 11. an anti-slip texture; 2. a needle body; 21. a first needle section; 22. a second needle section; 23. a third needle section; 231. a knife tip; 232. and (5) a lateral blade.

Detailed Description

The present utility model will be described in detail with reference to specific examples.

In the present utility model, when an orientation word is present, it is used for convenience of description and simplification of description, rather than to indicate or imply that the apparatus or element in question must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present utility model.

The utility model provides a novel needle knife, which comprises a hand-held part 1 and a needle body 2, as shown in figures 1 to 8, wherein the needle body 2 comprises a first needle section 21, a second needle section 22 and a third needle section 23 which are sequentially connected.

The first needle section 21 is connected to the handpiece 1, the first needle section 21 being of a straight construction.

The second needle section 22 is of a straight structure, the first needle section 21 and the second needle section 22 form a reference surface, the angle between the second needle section 22 and the first needle section 21 is 110-150 ° (i.e. 1 as shown in fig. 5), and 1 is preferably 145 °.

The third needle section 23 is bent towards the direction of the first needle section 21 after extending along the direction perpendicular to the reference surface to form an arc section, the central angle of the arc section is 65-115 degrees (namely +.3 shown in fig. 4), the angle 3 is preferably 90 degrees, the total length of the third needle section 23 is 10-20mm, the tail end of the third needle section 23 is provided with a knife tip 231, and the side surface of the third needle section 23 is provided with a lateral knife edge 232 facing the direction of the hand holding part 1.

With the above-described construction, the tip 231 of the third needle section 23 is used to pierce the skin of the patient to enable the needle body 2 to penetrate the patient, while the lateral blade 232 is responsible for severing the junction between the subclavian muscle 01 and the collarbone 02.

In use, the doctor holds the hand-held part 1 and adjusts the posture of the novel needle-knife so that the longitudinal direction of the first needle segment 21 is substantially parallel to the longitudinal direction of the collarbone 02, and the needle body 2 is inserted into the knife from the rear upper side of the collarbone 02 (the direction in which the patient's forechest is oriented is forward, and the direction in which the back is oriented is rearward). During operation, the third needle section 23 of the needle body 2 is firstly penetrated into a patient by the knife tip 231, then the angle of the needle body 2 is adjusted, the third needle section 23 is turned to penetrate forward in the chest direction (namely, the third needle section 23 penetrates forward from the rear of the collarbone 02 to the front of the collarbone 02, and simultaneously the second needle section 22 enters the patient, and then a doctor holds the hand-held part 1 to enable the third needle section 23 to pull or swing in the length direction of the collarbone 02, and a connection point between part of the collarbone 01 and the bone is cut off by the lateral knife edge 232 on the third needle section 23, so that the subclavian muscle 01 can be loosened.

Based on the structural characteristics and the use principle of the novel needle knife, the novel needle knife is inserted into the knife from the rear upper part of the clavicle 02 and is penetrated into the chest direction of a patient, so that the artery positioned at the rear lower part of the clavicle 02 can be avoided from being penetrated, and the risk is reduced; in addition, an included angle is formed between the third needle section 23 and the reference surface, the included angle is arranged to enable the third needle section 23 to be tightly attached to the bottom side surface of the collarbone 02 from below, meanwhile, the second needle section 22 is tightly attached to the rear side surface of the collarbone 02 from behind, the needle body 2 can be always attached to the collarbone 02 and is penetrated in a rotating winding mode in the penetrating process, positioning and guiding can be provided for penetrating, accurate penetrating of a needle knife is facilitated, the arc section and the arranged length of the third needle section 23 are designed according to the approximate shape and the width of the collarbone 02 of a human body, and the third needle section 23 with the length cannot penetrate into the artery of a patient under the condition that the second needle section 22 is propped against the rear side surface of the collarbone 02; when the third needle section 23 is pierced in place, the third needle section 23 is attached to the underside of the collarbone 02 and the lateral cutting edge 232 faces the subclavian muscle 01, and at this time, the doctor holds the hand-holding part 1 to translate or rotate the needle body 2 in the direction of the hand-holding part, so that the connection point between the subclavian muscle 01 and the bone can be cut off, and the operation is convenient.

In this embodiment, the length of the second needle section 22 is 10-20mm, which is designed according to the approximate thickness of the collarbone 02 of the human body, without being too long, and this length range makes the structure of the needle body 2 more compact and the strength of the needle body 2 higher and less prone to deformation while achieving the desired function. The total length of the hand-held part 1 and the first needle section 21 is 30-100mm, and various types of needle cutters can be produced within the length range, and the needle cutters are selected according to different use scenes or patient sizes when in use.

In this embodiment, the first needle section 21 and the second needle section 22 are both circular in cross-section and have a diameter of 0.8-1.2mm. The needle body 2 of this size range can have sufficient strength, and the needle body 2 is not easily deformed, and at the same time, the needle body 2 of this size range is less damaged to the human body. Based on this structural arrangement, i.e. the needle body 2 is smooth in other positions than the third needle section 23 provided with the knife tip 231 and the lateral knife edge 232, which also avoids damage to the non-operative parts of the patient by other positions of the needle body 2. Preferably, the first needle section 21 and the second needle section 22 have a diameter of 1mm.

In this embodiment, the first needle section 21 and the second needle section 22 are rounded, and the second needle section 22 and the third needle section 23 are rounded. Preferably, the diameter of the rounded transition diameter between the second needle section 22 and the third needle section 23 is 5-10mm. The diameter range of the rounded transition is similar to the bone shape of the clavicle 02, so that the needle body 2 can be better clung to the clavicle 02.

In this embodiment, the surface of the hand-held part 1 is provided with a non-slip texture 11. It is further preferred that the plane in which the anti-skid texture 11 lies is parallel to the orientation of the lateral blade edge 232. The hand-held part 1 is preferably made of plastic material and is molded on the needle body 2 in an injection molding mode, so that the production is convenient. The anti-slip texture 11 is arranged so that the doctor does not slip when holding the hand-held part 1, and the parallel arrangement of the plane of the anti-slip texture 11 and the direction of the lateral cutting edge 232 is beneficial to force transmission and more effective slip prevention.

In conclusion, the novel needle knife is convenient to use for subclavian muscle loosening operation and high in safety.

The above-described embodiments and features of the embodiments may be combined with each other without conflict.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. A novel needle knife which is characterized in that: comprises a hand-held part (1) and a needle body (2), wherein the needle body (2) comprises a first needle section (21), a second needle section (22) and a third needle section (23) which are connected in sequence;

the first needle section (21) is connected to the hand-held part (1), and the first needle section (21) is of a straight structure;

the second needle section (22) is connected into a straight structure, the first needle section (21) and the second needle section (22) form a reference surface, and an included angle between the second needle section (22) and the first needle section (21) is 110-150 degrees;

the third needle section (23) stretches out along the direction perpendicular to the reference surface and then bends towards the direction where the first needle section (21) is located to form an arc section, the total length of the third needle section (23) is 10-20mm, a knife tip (231) is arranged at the tail end of the third needle section (23), and a lateral cutting edge (232) facing the direction where the hand-held part (1) is located is arranged on the side face of the third needle section (23).

2. The novel needle knife according to claim 1, wherein: the second needle section (22) has a length of 10-20mm.

3. The novel needle knife according to claim 1, wherein: the first needle section (21) and the second needle section (22) are circular in cross section and have a diameter of 0.8-1.2mm.

4. The novel needle knife according to claim 1, wherein: the first needle section (21) and the second needle section (22) are in round angle transition, and the second needle section (22) and the third needle section (23) are in round angle transition.

5. The novel needle knife according to claim 1, wherein: the diameter of the rounded transition between the second needle section (22) and the third needle section (23) is 5-10mm.

6. The novel needle knife according to claim 1, wherein: the surface of the hand-held part (1) is provided with an anti-slip structure.

7. The novel needle knife according to claim 6, wherein: the plane of the anti-skid texture (11) is parallel to the direction of the lateral blade (232).

8. The novel needle knife according to claim 1, wherein: the total length of the hand-held part (1) and the first needle section (21) is 30-100mm.

9. The novel needle knife according to claim 1, wherein: the central angle of the arc section is 65-115 degrees.