CN201299604Y

CN201299604Y - Sternal distraction device

Info

Publication number: CN201299604Y
Application number: CNU2008201559126U
Authority: CN
Inventors: 孙益峰; 梅运清; 冯靖; 季强; 谢士梁
Original assignee: Tongji University
Current assignee: Tongji University
Priority date: 2008-11-26
Filing date: 2008-11-26
Publication date: 2009-09-02
Anticipated expiration: 2018-11-26

Abstract

The utility model discloses a sternal distraction device including a first handle, a second handle, a first distraction arm and a second distraction arm; wherein the first handle is connected with the first distraction arm to a whole body, the second handle is connected with the second distraction arm to the whole body; a hinge point is arranged at the connection position of the first handle and the first distraction arm, thereby being hinged with the connection position of the second handle and the second distraction arm; multi-tooth lock latches which are mutually matched are arranged on the inner sides of the first handle and the second handle; and catches are arranged at the tail ends of the first distraction arm and the second distraction arm. The sternal distraction device overcomes the shortcomings that the conventional sternal distraction device is difficult to place and easy to break sternum and cause small field of vision after the distraction, the distraction device tightly holds the handles of the distraction device, then the handles of the distraction device are tightly buckled, and the head end of the distraction device is opened automatically, so as to achieve the purpose of distraction of the sternum.

Description

The breastbone dilator

Technical field

This utility model relates to operation and uses medical apparatus and instruments, is specifically related to the breastbone dilator.

Background technology

In the cardiothoracic surgery disease treatment process, the mediastinum illness part breastbone of need riving on the part, breastbone strut one suitably the gap of size can finish.At present in the thoracic surgery process, the breastbone dilator that uses breastbone cuts after comprises the breastbone distraction surface and the lateral zigzag dilator strand tooth punching formation of two-sided parallel trough of belt.Because the breastbone distraction surface of trough of belt is generouser, the close clearance after cutting for the part breastbone is difficult to put into, even put into reluctantly, because that this dilator struts in the process strength is big, exposes well for reaching operating field, and it is disconnected that breastbone is easy to support.This utility model device breastbone distraction surface is thinner thin, than the narrow breastbone gap that is easier to insert after the part breastbone cuts, by the handle of holding with a firm grip, dilator opens, the handle place has snap close to pin the dilator handle automatically, the operating field that struts is fixed, and pushes dilator handle place gently, and dilator can loosen automatically.The convenient taking-up, by the folding size that the handle of holding with a firm grip is regulated the breastbone dilator, strength is more even, and it is cross-section to have avoided breastbone to strut in the process, relatively is applicable to the repairing of less lump excision of mediastinum or blood vessel.

The utility model content

The purpose of this utility model is in order to overcome deficiency of the prior art, a kind of folding that makes things convenient for to be provided, and strength is even, the breastbone dilator of inserting easily.

For achieving the above object, this utility model is achieved through the following technical solutions:

The breastbone dilator is characterized in that, comprises that the first in command, the second in command, first strut arm and second and strut arm; The first in command and first struts the arm one and links to each other, and the second in command and second struts the arm one and links to each other; The first in command and first junction that struts arm are provided with pin joint, and the junction that struts arm with the second in command and second is hinged; The first in command and second in command inboard are provided with the multiple tooth snap close that cooperatively interacts; First struts arm and second end that struts arm is provided with catch.

Preferable, above-mentioned catch comprises first catch and second catch, first catch is vertical mutually with second catch, and catch is thinner, conveniently to insert the slit that breastbone cuts.

Above-mentioned first struts arm and second struts arm and can close up, and puts into more tiny gap, the first in command and the second in command near the time, first strut arm and second strut arm away from.

The beneficial effects of the utility model are: because the dilator head is thinner, therefore, the operator can insert this dilator the narrow part breastbone gap of cutting easily.The handle of holding with a firm grip, the dilator head struts automatically, and multiple tooth automatic snap close can be locked dilator, the scope that multiple tooth snap close scalable dilator struts, push the dilator handle gently, dilator can loosen automatically, owing to the magnitude range that struts of regulating dilator by the handle of holding tight dilator, therefore, this kind of breastbone dilator folding is very convenient, strength is more even, because the dilator head end is thinner, very conveniently inserts in narrow gap.

Description of drawings

Fig. 1 is this utility model structural representation;

The specific embodiment

Further specify below in conjunction with accompanying drawing this utility model.

Breastbone dilator as shown in Figure 1, comprise that the first in command 1, the second in command 2, first strut arm 3 and second and strut arm 4, the first in command 1 and first struts arm 3 one and links to each other, the second in command 2 and second struts arm 3 one and links to each other, the first in command and first junction that struts arm are provided with pin joint 5, and the junction that struts arm with the second in command and second is hinged; The first in command and second in command inboard are provided with the multiple tooth snap close 6 that cooperatively interacts; First struts arm and second end that struts arm is provided with catch, and catch comprises that first catch 7 and second catch, 8, the first catch are vertical mutually with second catch, and washer is thinner, inserts the slit that breastbone cuts with convenient.First struts arm 3 and second struts arm 4 and can close up, and puts into more tiny gap, the first in command and the second in command near the time, first strut arm and second strut arm away from, reach the purpose that struts.

During use, to strut arm closes up and puts into gap (breastbone that cuts), the operator only need with two one or two hold near, two strut arm and promptly strut automatically, utilize the fixedly gap size that struts of breastbone of multiple tooth snap close locking dilator again, also can be according to needs the scope that struts of the fit adjustment dilator by different teeth on the multiple tooth snap close at any time, push the dilator handle gently, dilator can loosen automatically.

The foregoing description only is used for that the present invention will be described, does not constitute the restriction to the claim scope, and other substantial equivalence means that it may occur to persons skilled in the art that are all in claim scope of the present invention.

Claims

1. the breastbone dilator is characterized in that, comprises that the first in command, the second in command, first strut arm and second and strut arm; The first in command and first struts the arm one and links to each other, and the second in command and second struts the arm one and links to each other; The first in command and first junction that struts arm are provided with pin joint, and the junction that struts arm with the second in command and second is hinged; The first in command and second in command inboard are provided with the multiple tooth snap close that cooperatively interacts; First struts arm and second end that struts arm is provided with catch.

2. breastbone dilator according to claim 1 is characterized in that described catch comprises first catch and second catch, and first catch is vertical mutually with second catch.