CN201899527U

CN201899527U - Temporomandibular joint opening pincers

Info

Publication number: CN201899527U
Application number: CN2010206626073U
Authority: CN
Inventors: 张益�; 齐孝宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-12-16
Filing date: 2010-12-16
Publication date: 2011-07-20
Anticipated expiration: 2020-12-16

Abstract

The utility model relates to an operation tool, in particular to a pair of temporomandibular joint opening pincers, which is used for opening the temporomandibular joint, is convenient to operate, has a wide operation field and can be fixedly and tightly locked. The temporomandibular joint opening pincers consists of a first handle, a second handle, a groove clamp spring, a bulge clamp spring, a first locking lug boss, a second locking lug boss, a connecting pin shaft and a locking device. When the temporomandibular joint opening pincers is used, the head part of the temporomandibular joint opening pincers is inserted into a joint gap, after the joint is opened, a cylindrical table arranged on the locking device is rotated so that the upper part of the locking device is tightly clamped and connected onto the first locking lug boss and the second locking lug boss, in addition, V-shaped clamp grooves arranged on the first locking lug boss and the second locking lug boss are mutually engaged, and the pulled groove clamp spring and the pulled bulge clamp spring can generate pretightening force on the V-shaped clamp grooves so that the engagement of the V-shaped clamp grooves is more stable. Thereby, the fixed locking of the temporomandibular joint opening pincers in the use state in operation is ensured.

Description

Temporomandibular joint struts pincers

Technical field

This utility model relates to a kind of operational tool, particularly a kind ofly is used to strut temporomandibular joint, and is easy to operate and surgical field of view is open, but and the temporomandibular joint of fixing and locking strut pincers.

Background technology

Performing an operation, when running into the situation that need strut temporomandibular joint, the most frequently used method that struts temporomandibular joint peels off that son struts method, mosquito forceps struts method and the tip reduction forceps struts method, the drawback of these three kinds of methods is to skid easily when strutting the joint, strut poor effect, slippage also can damage other tissue, causes unnecessary damage; After strutting temporomandibular joint, surgical field of view is very narrow and small, is inconvenient to observe the state of an illness and operation technique; Can't the fixing operation instrument under softened state, need an assistant to assist toward contact, fixedly softened state often because the inharmonic operation of two people cooperates, causes surgical wound damage expansion.

The utility model content

Technical problem to be solved in the utility model provides a kind of simple in structure, and is easy to use, especially is easy to fixedly strut the temporomandibular joint state, is difficult for skidding and temporomandibular joint that surgical field of view is open struts pincers.

For solving the problems of the technologies described above, this utility model is realized as follows: temporomandibular joint described in the utility model struts pincers and is made up of handle one, handle two, groove jump ring, protruding jump ring, locking boss one, locking boss two, connection bearing pin and locking device; The end wedgewise shape of handle one and handle two, outer surface is evenly equipped with anti-slip tank, and handle one and handle two rely on the connection bearing pin fixedly connected, and handle one and handle two can rotate around connecting bearing pin, and the angle that struts fully between back handle one and the handle two is 120 degree; One end of groove jump ring has a groove, and the other end relies on steady pin to be fixedly connected on the medial surface of handle one; One end of projection jump ring has a projection, and the other end relies on steady pin to be fixedly connected on the medial surface of handle two; The projection of projection jump ring is connected in the groove of groove jump ring, and can slide along groove; Locking boss one is fixedly connected on the medial surface of handle one, and vertical with handle one medial surface, is evenly equipped with " V " shape draw-in groove on the locking boss one, is provided with a circular arc concave surface in the end of locking boss one; Locking boss two is fixedly connected on the medial surface of handle two, and vertical with handle two medial surface, is evenly equipped with " V " shape draw-in groove on the locking boss two; " V " shape draw-in groove on locking boss one and the locking boss two can be meshing with each other; Locking device is fixedly connected on the locking boss one, is two cylinder tables, and first cylinder table is fixedly connected on the locking boss one, and another cylinder table is fixedlyed connected with first cylinder table by bolt.

The cervical region that described temporomandibular joint struts pincers can be straight neck structure or has the curved neck structure of bending neck.

The end sides that described temporomandibular joint struts pincers can be even surface or has the cambered surface of indent.

Good effect of the present utility model: temporomandibular joint described in the utility model struts pincers, temporomandibular joint struts clamp head part one flat-sided putting down, one side intermediate projections meets the dissect physiology structure at human body remporomandibular joint position, struts fixing-stable in the process, can be to each side's slippage; Temporomandibular joint struts clamp headend and is wedge shape, is convenient to insert in the joint space; Temporomandibular joint struts the clipper joint position 120 ° range of activity, struts in the process fully to expose surgical field of view, makes things convenient for the patient to operate; Temporomandibular joint struts after pincers strut the joint space, the locking operation that can undergo surgery behind the locking device, saving manpower.

Description of drawings

Below in conjunction with the drawings and specific embodiments this utility model is described in further detail.

Fig. 1 is the structural representation one that temporomandibular joint struts pincers

Fig. 2 is the structural representation two that temporomandibular joint struts pincers

Among the figure, 1 handle, one 2 handles, 23 groove jump rings

4 concave surfaces, 5 locking boss, one 6 anti-slip tanks

7 cambered surfaces 8 connect bearing pin 9 protruding jump rings

10 steady pins, 11 locking boss, 2 12 locking devices

13 curved necks

The specific embodiment

As shown in Figure 1, 2, temporomandibular joint described in the utility model strut pincers by handle one (1), handle two (2), groove jump ring (3), protruding jump ring (9), locking boss one (5), locking boss two (11), connect bearing pin (8) and locking device (12) is formed; The end wedgewise shape of handle one (1) and handle two (2), outer surface is evenly equipped with anti-slip tank (6), handle one (1) and handle two (2) rely on connection bearing pin (8) fixedly connected, handle one (1) and handle two (2) can rotate around connecting bearing pin (8), and the angle that struts fully between back handle one (1) and the handle two (2) is 120 degree; One end of groove jump ring (3) has a groove, and the other end relies on steady pin (10) to be fixedly connected on the medial surface of handle one (1); One end of projection jump ring (9) has a projection, and the other end relies on steady pin (10) to be fixedly connected on the medial surface of handle two (2); The projection of projection jump ring (9) is connected in the groove of groove jump ring (3), and can slide along groove; Locking boss one (5) is fixedly connected on the medial surface of handle one (1), and vertical with handle one (1) medial surface, is evenly equipped with " V " shape draw-in groove on the locking boss one (5), is provided with a circular arc concave surface (4) in the end of locking boss one (5); Locking boss two (11) is fixedly connected on the medial surface of handle two (2), and vertical with handle two (2) medial surface, is evenly equipped with " V " shape draw-in groove on the locking boss two (11); " V " shape draw-in groove on locking boss one (5) and the locking boss two (11) can be meshing with each other; Locking device (12) is fixedly connected on the locking boss one (5), is two cylinder tables, and first cylinder table is fixedly connected on the locking boss one (5), and another cylinder table is fixedlyed connected with first cylinder table by bolt.

The cervical region that described temporomandibular joint struts pincers can be straight neck structure or has the curved neck structure of curved neck (13).

The end sides that described temporomandibular joint struts pincers can be even surface or has the cambered surface (7) of indent.

Work process of the present utility model is:

Temporomandibular joint described in the utility model struts pincers, during use its head is inserted in the joint space, after strutting the joint, cylinder table on the rotation locking device, cause on the locking device being connected on locking boss one and the locking boss two tightly, and " V " type draw-in groove on locking boss one and the locking boss two is meshing with each other, the groove jump ring that is drawn back, protruding jump ring can produce a pretightning force to " V " type draw-in groove, force the more stable of " V " type draw-in groove engagement, thereby guaranteed that temporomandibular joint struts the fixing and locking that clamps user mode in the operation.

Claims

1. temporomandibular joint struts pincers, it is characterized in that: temporomandibular joint described in the utility model struts pincers and is made up of handle one, handle two, groove jump ring, protruding jump ring, locking boss one, locking boss two, connection bearing pin and locking device; The end wedgewise shape of handle one and handle two, outer surface is evenly equipped with anti-slip tank, and handle one and handle two rely on the connection bearing pin fixedly connected, and handle one and handle two can rotate around connecting bearing pin, and the angle that struts fully between back handle one and the handle two is 120 degree; One end of groove jump ring has a groove, and the other end relies on steady pin to be fixedly connected on the medial surface of handle one; One end of projection jump ring has a projection, and the other end relies on steady pin to be fixedly connected on the medial surface of handle two; The projection of projection jump ring is connected in the groove of groove jump ring, and can slide along groove; Locking boss one is fixedly connected on the medial surface of handle one, and vertical with handle one medial surface, is evenly equipped with " V " shape draw-in groove on the locking boss one, is provided with a circular arc concave surface in the end of locking boss one; Locking boss two is fixedly connected on the medial surface of handle two, and vertical with handle two medial surface, is evenly equipped with " V " shape draw-in groove on the locking boss two; " V " shape draw-in groove on locking boss one and the locking boss two can be meshing with each other; Locking device is fixedly connected on the locking boss one, is two cylinder tables, and first cylinder table is fixedly connected on the locking boss one, and another cylinder table is fixedlyed connected with first cylinder table by bolt.

2. temporomandibular joint according to claim 1 struts pincers, it is characterized in that: the cervical region that described temporomandibular joint struts pincers can be straight neck structure or has the curved neck structure of bending neck.

3. temporomandibular joint according to claim 1 struts pincers, it is characterized in that: the end sides that described temporomandibular joint struts pincers can be even surface or has the cambered surface of indent.