CN112971929A

CN112971929A - Cutter for directional puncture cutting microscopic operation

Info

Publication number: CN112971929A
Application number: CN202110439161.0A
Authority: CN
Inventors: 付志昂; 陈思
Original assignee: Gutian Wuhu Medical Technology Co ltd
Current assignee: Gutian Wuhu Medical Technology Co ltd
Priority date: 2021-04-23
Filing date: 2021-04-23
Publication date: 2021-06-18

Abstract

The invention belongs to medical instruments, and particularly relates to a microscopic surgical cutter for directional puncture cutting, which comprises a cutter body and a cutter head, wherein the cutter body and the cutter head are integrally formed, the cutter head sequentially comprises a first layer of cutter face, a second layer of cutter face and a third layer of cutter face from the tip end to the tail end, and the second layer of cutter face and the third layer of cutter face are double-edged faces symmetrically distributed at two edge positions of the cutter head.

Description

Cutter for directional puncture cutting microscopic operation

Technical Field

The invention belongs to medical instruments, and particularly relates to a microscopical surgical knife for directional puncture and cutting.

Background

In clinical disease treatment, some diseases are usually treated by means of an operation, and due to the fact that the anatomical structure and the operation visual field are narrow and the like, the operation cutter needs to be small, exquisite and flexible so as to meet the requirements of operations in various anatomical positions and operation spaces. In long-term clinical practice, doctors often replace different scalpels during operation, the scalpels are required to be particularly sharp, the puncture direction is controlled, if the scalpels are not sharp or the guiding type is not easy to control, the diseased region is likely to be uncomfortable due to contact with surgical instruments during the operation, a certain blocking effect is achieved on the operation, and the postoperative recovery is greatly influenced;

the prior microsurgical knife for puncture and cutting is mainly designed into a knife shape by matching a single blade and a double blade at a certain angle. But the sharpness and the durability are poor, and the knife point has poor puncture force, is easy to damage and break, has poor sharpness and is not easy to control the incision guiding type.

Disclosure of Invention

The invention aims to provide a microsurgical knife for directional puncture and cutting.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a be used for micro-class operation cutter of directional puncture cutting, includes blade and tool bit, blade and tool bit integrated into one piece, the tool bit is first layer knife face, second floor knife face and third layer knife face from most advanced to the afterbody in proper order, second floor knife face and third layer knife face are the double flank of symmetric distribution at the both edges of tool bit position.

Preferably, the front end of the tool bit is pointed, the lower surface of the first layer of tool face is a plane, and the edge of the upper surface is ground into a slope to form a first cutting edge.

Preferably, the angle between the first cutting edge and the horizontal is 130 ° to 155 °.

Preferably, the upper surface edge of the second layer of blade face is ground to form a slope to form a second blade edge.

Preferably, the upper surface edge of the third layer of blade face is ground to form a slope to form a third blade edge.

Preferably, the angle between the second cutting edge and the horizontal plane is between 30 ° and 45 °.

Preferably, the angle between the third cutting edge and the horizontal plane is 20-35 °.

Preferably, the intersection part of the knife body and the knife head is in chamfer smooth transition.

Has the advantages that:

1) in the clinical disease treatment, the operation risk and the operation difficulty caused by the insufficient sharpness of the operation cutter are reduced, the success rate of the operation is improved, and the influence of the operation cutter on the recovery process of the wound of a patient is greatly reduced;

2) the second cutting edge and the third cutting edge are arranged on the two sides, so that the service life of the surgical knife is prolonged, and the surgical cost is reduced;

3) the operation difficulty of doctors is reduced, the operation risk is greatly reduced, and the operation difficulty is reduced.

The invention has simple structure, prolongs the service life of the cutter, reduces the operation difficulty, is beneficial to improving the success rate of the operation, is beneficial to the efficient and high-quality healing of the tissue incision of a patient, solves the problem of single cutting and puncturing direction of the cutter, increases the puncturing, cutting sharpness and stability of the cutter, and prolongs the service life of the cutter.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments of the present invention are briefly described below.

FIG. 1 is a front view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 3;

FIG. 5 is a cross-sectional view of a prior art surgical knife;

1-blade body, 2-tool bit, 21-first blade surface, 22-second blade surface, and 23-third blade surface.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some components of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product.

Referring to fig. 1 to 4, the microscopical surgical knife for directional puncture cutting comprises a knife body 1 and a knife head 2, wherein the knife body 1 and the knife head 2 are integrally formed, the knife head 2 sequentially comprises a first layer knife face 21, a second layer knife face 22 and a third layer knife face 23 from the tip to the tail, and the second layer knife face 22 and the third layer knife face 23 are double-edged faces symmetrically distributed at two edge positions of the knife head.

In this embodiment, the front end of the cutting head 2 is pointed, the lower surface of the first layer blade surface 21 is a plane, and the edge of the upper surface is ground to form a slope to form a first cutting edge.

In this embodiment the angle between the first cutting edge and the horizontal plane is 130-155.

In this embodiment, the edge of the upper surface of the second blade surface 22 is ground to form a second blade edge.

In the present embodiment, the edge of the upper surface of the third rake surface 23 is ground to form a slope to form a third cutting edge.

In this embodiment the angle between the second cutting edge and the horizontal plane is 30-45.

In this embodiment the angle between the third cutting edge and the horizontal plane is 20-35.

In this embodiment, the intersection of the blade 1 and the cutting head 2 is in a smooth transition of chamfer.

In the invention, the first knife point is a part used for puncturing on the surgical knife, and the front end of the first knife point is sharp and tiny, so that the puncturing point of the surgery is small when the surgical knife is applied; the first cutting edge, the second cutting edge and the third cutting edge are distributed in parallel and form a triangular reinforcing structure, so that the structural strength of the whole cutter head part is improved, and the strength of the first cutter head is increased; the arrangement of the second cutting edge prevents the two sides of the cutting opening from being cracked when the cutter is used for operation, reduces the position of the first cutter point, improves the puncture effect and improves the durability of the surgical cutter; the first blade is arranged to ensure that the puncturing and cutting directions of the surgical knife are kept on the same horizontal line.

Has the advantages that:

1) in the clinical disease treatment, the operation risk and the operation difficulty caused by the insufficient sharpness of the operation cutter are reduced, the success rate of the operation is improved, and the influence of the operation cutter on the recovery process of the wound of a patient is greatly reduced; the puncture needle can smoothly puncture a surgical site, can accurately reach a puncture position when a surgical knife punctures, and is convenient and easy for an operator to operate; the shape of the tissue incision is effectively protected in the puncture process, the tissue is not easy to damage, and the healing is easy; the head of the surgical knife is provided with a second knife layer surface and a third knife layer surface structure, the surgical knife is small in opening breakage, the tissue is small in damage, and cut tissues are easy to heal; the cutting edge of the common surgical knife has large collapse, the tissue incision surface cannot be effectively protected, the tissue incision is slowly healed, and relatively large scars are left;

2) the second cutting edge and the third cutting edge are arranged on two sides, so that the service life of the surgical knife is prolonged, and the surgical cost is reduced;

The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a be used for micro-class operation cutter of directional puncture cutting, includes blade (1) and tool bit (2), blade (1) and tool bit (2) integrated into one piece, its characterized in that: tool bit (2) are first layer knife face (21), second floor knife face (22) and third layer knife face (23) from most advanced to the afterbody in proper order, second floor knife face (22) and third layer knife face (23) are the double flank of symmetric distribution in the both edges position of tool bit (2).

2. The knife for directional stab cutting microscopy according to claim 1, wherein the front end of the blade (2) is pointed, the lower surface of the first layer blade surface (21) is flat and the edge of the upper surface is beveled to form a first blade edge.

3. A knife for directional stab cutting microscopy according to claim 2, wherein said first blade is angled between 130 ° and 155 ° from horizontal.

4. The knife for directional stab cutting microscopy according to claim 1, wherein said second blade face (22) has a second blade edge formed by a slope ground at the edge of the upper surface.

5. The knife for directional stab cutting microscopy according to claim 1, wherein said third blade face (23) has a third blade edge formed by grinding a slope on the edge of the upper surface.

6. A knife for directional stab cutting microscopy according to claim 4, wherein said second blade is angled between 30 ° and 45 ° from horizontal.

7. A knife for directional stab cutting microscopy according to claim 5, wherein said third blade is angled between 20 ° and 35 ° from the horizontal.

8. The microsurgical knife for directional paracentesis and cutting according to claim 1, characterized in that the intersection of the knife body (1) and the knife head (2) is in a smooth transition of chamfer.