CN202740088U

CN202740088U - Hooked ultrasonic bone knife head

Info

Publication number: CN202740088U
Application number: CN201220457736.8U
Authority: CN
Inventors: 李中实; 曹群; 刘庆明
Original assignee: Beijing SMTP Technology Co Ltd
Current assignee: Beijing SMTP Technology Co Ltd
Priority date: 2012-09-10
Filing date: 2012-09-10
Publication date: 2013-02-20
Anticipated expiration: 2022-09-10

Abstract

The utility model discloses a hooked ultrasonic bone knife head which comprises a knife bar and a head end, wherein one end of the head end is connected with one end of the knife bar; and the head end is in a hooked shape. Through the utility model, the bone cutting efficiency is improved, the operation time is shortened, the pain suffered by the patients is relieved, the labor intensity of the doctors is reduced, the bone cutting quantity and shape can be accurately controlled, the bone cutting loss in the operation is reduced, and the rehabilitation of the patients is accelerated.

Description

A kind of hook-type ultrasonic osteotome bit

Technical field

This utility model relates to technical field of medical instruments, relates in particular to a kind of hook-type ultrasonic osteotome bit.

Background technology

In bone surgery, often use piezosurgery osteotomy to bone cut, grinding, planing, scraping or any reshaping.As shown in Figure 1, present ultrasonic osteotome bit is multiple tooth, and wider point of a knife part is arranged, and how the point of a knife part is not effectively main cutting part.

There are the following problems for this ultrasonic osteotome bit: cutting speed is slow, and efficient is low, and carrying load ability is poor, wastes energy; Easily fracture, service life is low; Complex-shaped, difficulty of processing is high, and production cost is high.

The utility model content

The purpose of this utility model is to propose a kind of hook-type ultrasonic osteotome bit, can improve deep efficient, reduce operating time, reduce patient's misery, reduce doctor's labor intensity, and can accurately control cutting output and shape to bone, reduce the deep loss amount in the art, accelerate patient's recovery time.

For reaching this purpose, this utility model by the following technical solutions:

A kind of hook-type ultrasonic osteotome bit comprises knife bar and head end, and an end of head end is connected with an end of knife bar, and head end is hook-type.

Head end is flat.

Head end further comprises bill, hook paddy and the neck of hook, and the wide end of the neck of hook connects knife bar, the end of the narrow end butt hook paddy of the neck of hook, and the other end of hook paddy connects the wide end of bill.

Described hook paddy becomes U-shaped.

Also comprise blade, knife bar one end connects head end, and the other end of knife bar connects blade, and by arc transition, the other end of blade arranges connecting thread between knife bar and the blade, and blade arranges positive die nut position.

Adopted the technical solution of the utility model, had following effect: 1, deep efficient is high, speed is fast, reduces operating time, reduces patient's misery, reduces doctor's labor intensity; 2, the cutter head exquisiteness is small and exquisite, can accurately control cutting output and shape to bone, reduces the deep loss amount in the art, accelerates patient's recovery time; 3, hemostasis blood coagulation effect is arranged in deep process, reduce intraoperative blood loss; 4, reduce difficulty of processing, reduced production cost.

Description of drawings

Fig. 1 is the structural representation of ultrasonic osteotome bit in the prior art scheme.

Fig. 2 is the structural representation of hook-type ultrasonic osteotome bit in this utility model specific embodiment one.

Fig. 3 is the side schematic view of hook-type ultrasonic osteotome bit in this utility model specific embodiment one.

Fig. 4 is the schematic top plan view of hook-type ultrasonic osteotome bit in this utility model specific embodiment one.

Fig. 5 is the local structure for amplifying sketch map of hook-type ultrasonic osteotome bit in this utility model specific embodiment one.

The specific embodiment

Further specify the technical solution of the utility model below in conjunction with accompanying drawing and by the specific embodiment.

The main thought of technical solutions of the utility model is on the planform of ultrasonic osteotome bit.Fig. 2 is the structural representation of hook-type ultrasonic osteotome bit in this utility model specific embodiment one.Fig. 3 is the side schematic view of hook-type ultrasonic osteotome bit in this utility model specific embodiment one.Fig. 4 is the schematic top plan view of hook-type ultrasonic osteotome bit in this utility model specific embodiment one.Fig. 5 is the local structure for amplifying sketch map of hook-type ultrasonic osteotome bit in this utility model specific embodiment one.Such as Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, this hook-type ultrasonic osteotome bit comprises head end 1, knife bar 2 and blade 3.

Head end is the hook-type of flat, further comprises bill 11, hook paddy 12 and the neck of hook 13, and hook paddy becomes U-shaped, and the wide end of the neck of hook connects knife bar, the end of the narrow end butt hook paddy of the neck of hook, and the other end of hook paddy connects the wide end of bill.

Knife bar one end connects head end, and the other end of knife bar connects blade, and by arc transition, the other end of blade arranges connecting thread 4 between knife bar and the blade, and blade arranges positive die nut position 5.

The connecting thread of the cutter head afterbody of this specific embodiment is connected with specific ultrasonic transducer, and tightens with corresponding spanner, again ultrasonic transducer is connected in specific ultrasonic main frame, can carry out work.

When this hook-type ultrasonic osteotome bit is used in operation, can as hook hook thing, use, maybe can as reaping hook, use, and other random maneuver is used.

The bill of hook-type head end can directly be used for cutting, and the neck of hook played the screens effect when bill was used as cutting, guarantees depth of cut, the protection surrounding tissue.Bill also can be done screens usefulness, is used for propping up upper edge or the lower edge of bone, and hook paddy is cut bone, and the neck of hook and simultaneously screens of bill are arranged this moment.Direction firmly is parallel with surface of bone or to the back upper place.In cutting process, can form a fulcrum with bill like this, and cut along this fulcrum.The advantage of this spline structure is and can plays a protective role to tissue on every side, and depth of cut, thickness all can be accurately controls in the cutting process.

When in operation, using, between the vertebral body (bone) that bill can be put in ridge (bone) meninges and will remove, bill props up bone and forms fulcrum, direction firmly operates to the back upper place, there is not so downward power, just reduce the danger to the damage of ridge (bone) marrow accidental destruction, reduced operation risk, reduced operation easier.

The above; it only is the better specific embodiment of this utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with the people of this technology in the disclosed technical scope of this utility model; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.

Claims

1. a hook-type ultrasonic osteotome bit is characterized in that, comprises knife bar and head end, and an end of head end is connected with an end of knife bar, and head end is hook-type.

2. a kind of hook-type ultrasonic osteotome bit according to claim 1 is characterized in that, head end is flat.

3. a kind of hook-type ultrasonic osteotome bit according to claim 2 is characterized in that head end further comprises bill, hook paddy and the neck of hook, and the wide end of the neck of hook connects knife bar, the end of the narrow end butt hook paddy of the neck of hook, and the other end of hook paddy connects the wide end of bill.

4. a kind of hook-type ultrasonic osteotome bit according to claim 3 is characterized in that, described hook paddy becomes U-shaped.

5. the described a kind of hook-type ultrasonic osteotome bit of arbitrary claim according to claim 1-4, it is characterized in that, also comprise blade, knife bar one end connects head end, the other end of knife bar connects blade, by arc transition, the other end of blade arranges connecting thread between knife bar and the blade, and blade arranges positive die nut position.