CN212853571U

CN212853571U - Detachable osteotome

Info

Publication number: CN212853571U
Application number: CN202020617039.9U
Authority: CN
Inventors: 周昭香
Original assignee: Wuhan Boao Taike Technology Co ltd
Current assignee: Wuhan Boao Taike Technology Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2021-04-02
Anticipated expiration: 2030-04-22

Abstract

The utility model discloses a detachable osteotomy knife, which comprises a knife head and a knife handle, wherein the bottom end of the knife head is formed and connected with a vertical main rod, the bottom end of the vertical main rod is formed and connected with a vertical screw rod, the middle part of the top surface of the knife handle is formed and connected with a screw hole, and the vertical screw rod is screwed in the screw hole; the bottom of handle of a knife shaping has the bottom hole, strikes the boss and is in the below of handle of a knife, strikes the top surface shaping of boss and has the bellying, and the bellying is installed in the bottom hole. It can be with tool bit and handle of a knife separation, strikes the boss and also can the split with the handle of a knife for its tool bit wearing and tearing or strike the boss when damaged, can directly change the tool bit or strike the boss, need not to change the handle of a knife, reduce extravagantly.

Description

Detachable osteotome

Technical Field

The utility model belongs to the field of medical equipment, a surgical instruments correlation technique field is related to, more specifically the knife for the bone is cut to removable saying so relates to one kind.

Background

The osteotomy knife generally comprises a blade and a knife handle, wherein the distal end of the osteotomy knife is provided with a hard, sharp and single-edge cutting blade, the knife handle is positioned at the proximal end of the osteotomy knife, however, the existing osteotomy knife adopts an integral structure, and the integral structure has the advantages of high integral strength and high stress strength, however, when the osteotomy knife is used for multiple times, the end part of the blade is seriously worn, the whole osteotomy knife needs to be replaced, and similarly, the knocking part at the bottom end of the osteotomy knife can also be seriously deformed after being knocked for multiple times and needs to be integrally replaced, and the knife handle part generally has no problem, so that waste is generated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at being not enough to prior art, and provide a but split cuts bone and use sword, it can be with tool bit and handle of a knife separation, strikes the boss and also can the split with the handle of a knife for its tool bit wearing and tearing or when striking the boss damage, can directly change the tool bit or strike the boss, need not to change the handle of a knife, reduce extravagantly.

The technical solution of the utility model is as follows:

a detachable osteotomy knife comprises a knife head and a knife handle, wherein the bottom end of the knife head is connected with a vertical main rod in a forming mode, a vertical screw rod is formed at the bottom end of the vertical main rod in a connecting mode, a connecting screw hole is formed in the middle of the top surface of the knife handle, and the vertical screw rod is screwed in the connecting screw hole;

the bottom of handle of a knife shaping has the bottom hole, strikes the boss and is in the below of handle of a knife, strikes the top surface shaping of boss and has the bellying, and the bellying is installed in the bottom hole.

An elastic protective sleeve is fixed on the inner side wall of the bottom hole, the protruding portion is clamped in the elastic protective sleeve, and the top surface of the protruding portion is pressed against the top surface of the bottom hole.

A conical transition portion is formed in the middle of the top face of the knocking reinforcing block, and a protruding portion is formed in the middle of the top face of the conical transition portion.

The bottom of connecting vertical mobile jib shaping has major diameter connecting portion, and the bottom surface middle part shaping of major diameter connecting portion has vertical spiro union pole.

The upper portion of the vertical screw rod is inserted and sleeved with a sealing gasket, and the sealing gasket is clamped between the bottom surface of the large-diameter connecting portion and the top surface of the knife handle.

The outer side wall of the knife handle is in a hexagonal column shape.

The beneficial effects of the utility model reside in that:

it can be with tool bit and handle of a knife separation, strikes the boss and also can the split with the handle of a knife for its tool bit wearing and tearing or strike the boss when damaged, can directly change the tool bit or strike the boss, need not to change the handle of a knife, reduce extravagantly.

Drawings

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

fig. 2 is a partial side view at the upper portion of the present invention.

Detailed Description

Example (b): as shown in fig. 1 to 2, the detachable osteotome knife comprises a knife head 10 and a knife handle 20, wherein the bottom end of the knife head 10 is connected with a vertical main rod 11 in a forming manner, a vertical screw rod 12 is formed at the bottom end connected with the vertical main rod 11, a connecting screw hole 21 is formed in the middle of the top surface of the knife handle 20, and the vertical screw rod 12 is screwed in the connecting screw hole 21;

a bottom hole 22 is formed in the bottom end of the knife handle 20, the knocking reinforcing block 30 is located below the knife handle 20, a protruding portion 31 is formed in the top face of the knocking reinforcing block 30, and the protruding portion 31 is installed in the bottom hole 22.

Furthermore, an elastic protection sleeve 23 is fixed on the inner side wall of the bottom hole 22, the convex part 31 is clamped in the elastic protection sleeve 23, and the top surface of the convex part 31 is pressed against the top surface of the bottom hole 22.

Further, a tapered transition portion 32 is formed at the middle of the top surface of the knocking reinforcement block 30, and a protrusion 31 is formed at the middle of the top surface of the tapered transition portion 32.

Further, a large-diameter connecting part 13 is formed at the bottom end of the connecting vertical main rod 11, and a vertical screw rod 12 is formed at the middle of the bottom surface of the large-diameter connecting part 13.

Further, the upper portion of the vertical screw rod 12 is inserted and sleeved with a gasket 1, and the gasket 1 is clamped between the bottom surface of the large-diameter connecting portion 13 and the top surface of the tool holder 20.

Further, the outer side wall of the tool holder 20 is a hexagonal cylinder.

This embodiment is in the use, and is serious when its tool bit 10 wearing and tearing, when the cutting edge is sharp inadequately, can rotate through vertical screw rod 12 and dismantle from handle of a knife 20 and change, and is very convenient, and its bottom of strikeing boss 30 warp or when wearing and tearing are serious, can with it follow bottom hole 22 extract can, dismantle simple to operate, it realizes through elastic protection cover 23 that the card puts the clamp tight, can guarantee to strike boss 30 fixed firm.

Claims

1. The utility model provides a but split cuts bone and uses sword, includes tool bit (10) and handle of a knife (20), its characterized in that: the bottom end of the tool bit (10) is connected with a vertical main rod (11) in a forming mode, a vertical screw rod (12) is formed at the bottom end of the vertical main rod (11), a connecting threaded hole (21) is formed in the middle of the top surface of the tool handle (20), and the vertical screw rod (12) is in threaded connection with the connecting threaded hole (21);

bottom hole (22) are formed in the bottom end of the cutter handle (20), the knocking reinforcing block (30) is located below the cutter handle (20), a protruding portion (31) is formed on the top surface of the knocking reinforcing block (30), and the protruding portion (31) is installed in the bottom hole (22).

2. A detachable osteotomy knife as defined in claim 1, further comprising: an elastic protective sleeve (23) is fixed on the inner side wall of the bottom hole (22), the protruding portion (31) is clamped in the elastic protective sleeve (23), and the top surface of the protruding portion (31) is pressed against the top surface of the bottom hole (22).

3. A detachable osteotomy knife as defined in claim 1, further comprising: a conical transition part (32) is formed in the middle of the top surface of the knocking reinforcing block (30), and a convex part (31) is formed in the middle of the top surface of the conical transition part (32).

4. A detachable osteotomy knife as defined in claim 1, further comprising: the bottom end of the connecting vertical main rod (11) is provided with a large-diameter connecting part (13), and the middle part of the bottom surface of the large-diameter connecting part (13) is provided with a vertical screw rod (12).

5. A detachable osteotomy knife as defined in claim 4, further comprising: the upper portion of the vertical screw rod (12) is inserted and sleeved with a sealing gasket (1), and the sealing gasket (1) is clamped between the bottom surface of the large-diameter connecting portion (13) and the top surface of the cutter handle (20).

6. A detachable osteotomy knife as defined in claim 1, further comprising: the outer side wall of the knife handle (20) is in a hexagonal column shape.