CN201316312Y

CN201316312Y - Bone plate fixer

Info

Publication number: CN201316312Y
Application number: CNU200820230919XU
Authority: CN
Inventors: 冯世义; 王奇才; 徐建高; 张分明; 宋信英; 李松柏; 蔡洁
Original assignee: Anyang Iron and Steel Group Co Ltd
Current assignee: Anyang Iron and Steel Group Co Ltd
Priority date: 2008-12-17
Filing date: 2008-12-17
Publication date: 2009-09-30
Anticipated expiration: 2018-12-17

Abstract

The utility model provides a bone plate fixer which is a medicinal appliance used in fixation surgery of fracture bone plates. The fixer is characterized in that the lower end of a spanner 1 in the fixer is sleeved on the upper end of a forcing screw 3, the lower end of the forcing screw 3 is connected with the upper end of a dual-claw 5 through threads, a spanner core 2 is orderly traversed through the spanner 1 and the inner of the forcing screw and is connected with the dual-claw 5, a single-claw 6 is sleeved on the forcing screw 3, and a forcing screw cap 4 is arranged on one end of the single-claw 6, the lower end of the dual-claw 5 is provided with two arc claws, teeth are arranged on the arc claws, the single claw 6 is in an arc claw shape, teeth are arranged on the arc claw, the fixing range of the three-claw fixer can be adjusted through rotating the spanner core 2, and the forcing function is generally played. The fixer has the characteristics of simple structure, convenient use, low manufacturing cost, and is suitable for the orthopedics department of various hospitals and has good economic and social benefits.

Description

The blade plate holder

Technical field:

This utility model relates to a kind of medical apparatus and instruments of the synthetism operation that is used for fracturing, particularly a kind of blade plate holder.

Background technology:

In bone surgery, the blade plate holder uses more, and along with developing rapidly of industry and traffic, the miscellaneous fracture patient is increasing.The blade plate holder of present clinical use has many shortcomings: 1. influence being screwed into of the middle screw of pressurized bone plate, do not meet the pressurized bone plate settled principle; 2. operation blade plate holder is complicated in the operation, and the doctor uses inconvenience, causes certain misery to the patient simultaneously.

The utility model content:

The purpose of this utility model is in order to solve above problem, and a kind of blade plate holder of development, it provides a kind of convenient, practical operating theater instruments for fracture blade plate fixing operation, and this holder meets the settled principle of pressurized bone plate, makes operation more quick.

This utility model is achieved in that the lower end of the spanner 1 in this holder is sleeved on the upper end of compression screw 3, the upper end of the lower end of compression screw 3 and two pawls 5 is by being threaded, spanner core 2 passes the inside of spanner 1, compression screw 3 successively and is connected with two pawls 5, monodactyle 6 be enclosed within compression screw 3 on, and an end be equipped with the pressurization nut 4.

This utility model can be realized like this: the lower end of described spanner 1 is interior hexagonal structure, and the upper end of compression screw 3 is outer hexagonal structure.

This utility model can also be realized like this: described spanner core 2 is threaded with two being connected to of pawl 5.

This utility model can also be realized like this: there are two arc pawls the lower end of described pair of pawl 5, on the arc pawl tooth is arranged.

This utility model can also be realized like this: described monodactyle 6 curved pawls have tooth on the arc pawl.The beneficial effects of the utility model are:

The utlity model has advantage simple in structure, easy to use and with low cost, be fit to each hospital orthopedics and use, can produce good economic benefit and social benefit.

Description of drawings:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the cutaway view of this utility model Fig. 1.

Fig. 3 is the shape and structure sketch map of the two pawls of this utility model.

The specific embodiment:

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1, 2, 3, the blade plate holder is by spanner 1, spanner core 2, and compression screw 3, pressurization nut 4, two pawls 5, monodactyle 6 is formed, and spanner 1 is the cylinder hollow shape, and its upper end profile is " fourth " word shape, and its lower end is interior hexagonal structure; It is carefully cylindric that spanner core 2 is, and there is a short handle its upper end, and there is external screw thread the lower end; Compression screw 3 is upper coarse and lower fine hollow shape, and the upper end is outer hexagonal structure, is complementary with the lower end of spanner 1, and there is screw thread the outside, lower end, is complementary with pressurization nut 4, and there is a tapped through hole inside; There are two arc pawls the lower end of two pawls 5, on the arc pawl tooth is arranged, can increase anti-skidding required frictional force, there is screw thread its outside, upper end, is complementary with the tapped through hole of compression screw 3, and end face has a screwed hole, be complementary with the external screw thread of spanner core 2 lower ends, wherein, the quality of fit of spanner core 2 and two pawl 5 screwed holes is compared high with compression screw 3 tapped through holes with two pawl 5 externally threaded quality of fits; Monodactyle 6 curved pawls have tooth on the pawl, the one end is flat, and a unthreaded hole is arranged, and the aperture is greater than the end of thread of compression screw 3.

As Fig. 2, the assembly method of above-mentioned blade plate holder is as follows:

Earlier monodactyle 6 is inserted in the end of thread of compression screw 3 by unthreaded hole, is screwed into the nut 4 that pressurizes again, monodactyle 6 is fixed on the compression screw 3, but monodactyle 6 can be on compression screw 3 rotary moveable.Then compression screw 3 lower ends are threaded by the upper end of screwed hole with two pawls 5, constitute by " three-jaw holder ".Spanner core 2 is inserted the inner chamber from the upper end of spanner 1 again, constitute by " adjustable wrench ", the lower end of spanner 1 is enclosed within the upper end of compression screw 3, and the end of thread with spanner core 2 is screwed in the screwed hole of two pawl 5 upper ends, till tightening again.This moment, the assembling of blade plate holder finished, and was in dormant state.Rotatable spanner core 2 during use makes two pawls 5 rotate and produce axial moving in the screwed hole of compression screw 3, thereby plays distance between two pawls 5 and the monodactyle 6, the effect that can pressurize gradually regulated.

Claims

1, a kind of blade plate holder, it is characterized in that: the lower end of spanner (1) is sleeved on the upper end of compression screw (3), the upper end of the lower end of compression screw (3) and two pawls (5) is by being threaded, spanner core (2) passes the inside of spanner (1), compression screw (3) successively and is connected with two pawls (5), and monodactyle (6) is enclosed within on the compression screw (3) and end retaining has pressurization nut (4).

2, blade plate holder according to claim 1 is characterized in that: the lower end of described spanner (1) is interior hexagonal structure, and the upper end of compression screw (3) is outer hexagonal structure.

3, blade plate holder according to claim 1 is characterized in that: described spanner core (2) is threaded with two being connected to of pawl (5).

4, blade plate holder according to claim 1 is characterized in that: there are two arc pawls the lower end of described pair of pawl (5), on the arc pawl tooth is arranged.

5, blade plate holder according to claim 1 is characterized in that: the curved pawl of described monodactyle (6) has tooth on the arc pawl.