CN213075829U

CN213075829U - Bone tumor resection knife

Info

Publication number: CN213075829U
Application number: CN202021170935.1U
Authority: CN
Inventors: 齐进; 赵育生
Original assignee: Lanzhou University Second Hospital
Current assignee: Lanzhou University Second Hospital
Priority date: 2020-06-22
Filing date: 2020-06-22
Publication date: 2021-04-30
Anticipated expiration: 2030-06-22

Abstract

The utility model discloses a bone tumor resection knife. The bone tumor resection knife of the utility model comprises a handle and a chisel head connected with one end of the handle, and the end part of the chisel head is provided with a cutting edge; the chisel head is Y-shaped branch, the Y-shaped branch of the chisel head is a first branch and a second branch, the first branch and the second branch are connected through a groove, a first convex blade is arranged at the tail end of the first branch, a second convex blade is arranged at the tail end of the second branch, a concave blade is arranged at the tail end of the groove, and the first convex blade, the concave blade and the second convex blade are connected smoothly. The chisel head of bone tumour excision sword designs into Y type branch, when the bone face arch such as excision osteoma, can operate according to the bellied characteristics of bone face, synthesizes multiple osteotome chisel head and simplifies surgical instruments, reduces the operation misery.

Description

Bone tumor resection knife

Technical Field

The utility model belongs to the technical field of medical instrument and specifically relates to a bone tumour excision sword.

Background

An osteotome is a medical instrument frequently used in general bone surgery and mainly used for removing a bulge or a spur generated on the surface of a patient's bone, and is a surgical instrument used for trimming and chiseling a bone when performing bone surgery. The osteotome is divided into a flat osteotome, a round osteotome, an empty shell chisel and other composition forms, and the main technical index is that the cutting edge of the osteotome is sharp and has no phenomena of edge breakage and edge rolling; the connection part of the osteotome is firmly fixed and cannot loosen or fall off during working; because traditional osteotome area of contact is undersize, the osteotome drops easily during the collision to chisel head has weakened the power of exerting to the difficult control of action body application of force direction and osteotome atress direction, and the same effort need exert bigger power, pollutes the operation region easily moreover and leads to the infection.

Disclosure of Invention

An object of the utility model is to provide a bone tumour excision sword can be protruding with the bone face such as multiple angle cutting osteoma, synthesizes multiple osteotome chisel head and simplifies surgical instruments, reduces the operation misery.

In order to achieve the purpose, the bone tumor resection knife of the utility model comprises a handle and a chisel head connected with one end of the handle, wherein the end part of the chisel head is provided with a cutting edge; the chisel head is Y-shaped branch, the Y-shaped branch of the chisel head is a first branch and a second branch, the first branch and the second branch are connected through a groove, a first convex blade is arranged at the tail end of the first branch, a second convex blade is arranged at the tail end of the second branch, a concave blade is arranged at the tail end of the groove, and the first convex blade, the concave blade and the second convex blade are connected smoothly.

The bottom of the chisel head is in an upward convex arc shape.

An inclined connecting rod is arranged between the handle and the chisel head.

The included angle between the handle and the inclined connecting rod is 120-165 degrees, and the included angle between the chisel head and the inclined connecting rod is 120-165 degrees.

The handle is parallel to the chisel head.

The end of the handle is provided with a stress support which is of a circular cake-shaped structure, and a connecting handle is arranged between the handle and the stress support.

The length of the first branch and the length of the second branch of the chisel head are the same, the length of the groove is shorter than the length of the first branch and the length of the second branch, and the first branch, the groove and the second branch are chisel heads with two ends protruding and middle depressed.

The included angle between the first branch and the second branch of the chisel head is 30-45 degrees.

The included angle between the first branch and the bottom of the groove is 100-125 degrees, and the included angle between the second branch and the bottom of the groove is 100-125 degrees.

The utility model relates to a bone tumour excision sword, its beneficial effect lies in: the chisel head of the osteotome is designed into a Y-shaped branch, when the bone surface such as osteoma is removed and the like is convex, the operation can be carried out according to the convex characteristics of the bone surface, the surgical instruments are simplified by integrating various osteotome chisel heads, and the pain of the operation is reduced.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a perspective view of the present invention;

in the figure: 1-blade, 2-groove, 3-chisel head, 4-handle, 5-stress support, 6-inclined connecting rod and 7-concave blade.

Detailed Description

Example 1

As shown in fig. 1-3, the bone tumor resection knife of the present invention comprises a handle 4 and a chisel head 3 connected to one end of the handle 4, wherein the end of the chisel head 3 is provided with a blade 1; the chisel head 3 is Y-shaped branch, the Y-shaped branch of the chisel head 3 is a first branch and a second branch, the first branch and the second branch are connected through a groove 2, a first convex blade is arranged at the tail end of the first branch, a second convex blade is arranged at the tail end of the second branch, a concave blade 7 is arranged at the tail end of the groove 2, and the first convex blade, the concave blade 7 and the second convex blade are connected smoothly.

The bottom of chisel head 3 is the epirelief arc shape, as shown in fig. 2, in a bone tumor excision sword right side view, the bottom of chisel head 3 is the arc structure of epirelief.

An inclined connecting rod 6 is arranged between the handle 4 and the chisel head 3.

The included angle between the handle 4 and the inclined connecting rod 6 is 120 degrees, and the included angle between the chisel head 3 and the inclined connecting rod 6 is 145 degrees.

The handle 4 is parallel to the chisel head 3.

The end of the handle 4 is provided with a stress support 5, the stress support 5 is of a circular cake-shaped structure, and a connecting handle is arranged between the handle 4 and the stress support 5.

The lengths of the first branch and the second branch of the chisel head 3 are the same, the length of the groove 2 is shorter than the lengths of the first branch and the second branch, and the first branch, the groove 2 and the second branch are chisel heads with two convex ends and a concave middle.

The angle between the first and second branch of the chisel head 3 is 30 deg..

The included angle between the first branch and the bottom of the groove 2 is 100 degrees, and the included angle between the second branch and the bottom of the groove 2 is 100 degrees.

When using, in the operation process, it is protruding to show the bone face that needs the excision, be close to the bone face with the Y type branch of chisel head 3 and need the excision position, the bone face is pressed close to recess 2 of chisel head 3, the operation is accomplished at the osteoma protruding department that the bone face needs the operation to terminal concave blade 7 card of recess 2, the osteoma of excision gets into in recess 2 along the inner wall of first branch and second branch, make the piece in the operation collect fast, reduce the operation infection, and because handle 4 and chisel head 3 fixed connection in the operation process, first convex blade, concave blade 7, smooth connection between the second convex blade, can accurate excision osteoma according to the difference of different osteoma growing position pinching excision sword directions, and can reduce the operation in-process and take place the excision sword and sideslip and damage nervous phenomenon about.

Claims

1. A bone tumor resection knife comprises a handle (4) and a chisel head (3) connected with one end of the handle (4), wherein the end part of the chisel head (3) is provided with a knife edge (1); the method is characterized in that: the chisel head (3) is Y-shaped branch, the Y-shaped branch of the chisel head (3) is a first branch and a second branch, the first branch and the second branch are connected through a groove (2), a first convex blade is arranged at the tail end of the first branch, a second convex blade is arranged at the tail end of the second branch, a concave blade (7) is arranged at the tail end of the groove (2), and the first convex blade, the concave blade (7) and the second convex blade are connected in a smooth mode.

2. The bone tumor removal knife of claim 1, wherein: the bottom of the chisel head (3) is in an upward convex arc shape.

3. The bone tumor removal knife of claim 2, wherein: an inclined connecting rod (6) is arranged between the handle (4) and the chisel head (3).

4. The bone tumor removal knife of claim 3, wherein: the included angle between the handle (4) and the inclined connecting rod (6) is 120-165 degrees, and the included angle between the chisel head (3) and the inclined connecting rod (6) is 120-165 degrees.

5. The bone tumor removal knife of claim 4, wherein: the handle (4) is parallel to the chisel head (3).

6. The bone tumor removal knife of claim 5, wherein: the end of the handle (4) is provided with a stress support (5), the stress support (5) is of a circular cake-shaped structure, and a connecting handle is arranged between the handle (4) and the stress support (5).

7. The bone tumor removal knife of claim 1, wherein: the length of the first branch and the length of the second branch of the chisel head (3) are the same, the length of the groove (2) is shorter than the length of the first branch and the length of the second branch, and the first branch, the groove (2) and the second branch are of chisel heads with two ends protruding and middle depressed.

8. The bone tumor removal knife of claim 7, wherein: the included angle between the first branch and the second branch of the chisel head (3) is 30-45 degrees.