Movable support for wrist joints

Abstract

The invention discloses a movable support for wrist joints. The movable support for wrist joints is used for fixing fractured bones of the wrist and comprises a first adjuster and a second adjuster. A first slide groove for mounting two single-needle clamps is formed in the first adjuster axially, and the two single-needle clamps are respectively provided with a needle clamp hole and can be moved or fixed along the first slide groove. A second slide groove for mounting a double-needle clamp is formed in the second adjuster axially, and the double-needle clamp is provided with two needle clamp holes and can be moved or fixed along the second slide groove. Opposite ends of the first adjuster and the second adjuster are connected integrally by a locking unit; an adjusting mechanism used for adjusting the double-needle clamp in the second slide groove is arranged in an inner cavity of the second adjuster. The movable support for the wrist joints has the advantages of good fixing and locking effect and high safety coefficient, and can be used for fixing and locking for fractured bones of two portions.

Description

technical field [0001] The invention relates to the field of orthopedic medical devices, in particular to a wrist joint movable support for fixing partially broken bones of the wrist. Background technique [0002] The wrist joint movable bracket is an external fixation bracket used to assist the restoration and growth of the broken bone in the wrist. The broken wrist bone is restored to the position before the fracture through external force traction, and the wrist joint movable bracket is fixed on the broken bone. On both sides, the bone at the fracture is fixed and does not shift, and the growth and healing of the broken bone is promoted. The structure of the currently used wrist joint movable bracket is as follows: it includes a first adjustment body and a second adjustment body. The first adjustment body and the second adjustment body are connected as a whole through a locking device. A double nail clip is installed on each activity, and two clip pinholes are arranged o...

AI Technical Summary

Problems solved by technology

[0003] The main disadvantage of the wrist joint movable bracket of the above-mentioned structural form is that when the bone at the fracture is fixed, since the relative positions of the two clip pinholes on the double nail clip are fixed, the bone in the fracture bone will be implanted into the bone. The relative position of the traction pins is also fixed. The distance between the two bone traction pins is very close, so they can only be fixed and locked for a short distance, which makes the fixing and locking effect of the wrist joint movable bracket not ideal; in addition, the above bracket can only It is used to fix one fractured and dislocated bone, but cannot be used to fix two fractured and dislocated bones. There are limitations in its use

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