Miniature external fixation combined frame for treating interphalangeal joint comminuted fracture (pion fracture) of hands

Abstract

The invention discloses a miniature external fixation combined frame for treating interphalangeal joint comminuted fracture (pion fractures) of hands, is a medical instrument and is mainly suitable for treating the interphalangeal joint comminuted fracture (pion fractures) of the hands. The miniature external fixation combined frame is convenient to use and easy to operate, effectively solves theproblem that many complications occur when a traditional operation is used for treating the interphalangeal joint comminuted fracture (Pilon fracture) of the hands, greatly reduces operation difficulty and operation time, reserves the function of interphalangeal joints of fingers after the fracture operation, has the advantages of being small in trauma, easy to detach and the like, and fills the international blank. In the operation, a 3D printing individualized joint gasket is clamped and extruded in the joint, the interphalangeal joint is moved, smoothness and flatness of the interphalangealjoint surface can be achieved, and the tedious and time-consuming operation of kirschner wire fixation for reduction of comminuted joint surfaces is omitted in the operation. The miniature external fixation frame is applied to external fixation of the fracture, and the purposes of bone lengthening and bone end pressurizing can be achieved by adjusting a hollow threaded sleeve.

Description

Technical field[0001]The invention relates to the technical field of medical devices, and is a miniature external fixation combination frame for treating comminuted fractures (pilon fractures) of the interphalangeal joints of the hands.Background technique[0002]Interphalangeal intra-articular fractures of the hand are more common, among which Pilon fractures are more special. It is a comminuted intra-articular fracture of the interphalangeal joint caused by violent longitudinal conduction of the fingers. It is characterized by compression of the articular surface of the phalanx base and separation of the surroundings. It is an unstable fracture In the later stage, joint pain, stiffness, degeneration, subluxation, flexion contracture and joint instability are prone to occur.[0003]Comminuted fractures of the interphalangeal joints of the hand (Pilon fractures) are difficult to operate due to comminuted fractures and involvement of the articular surface. The currently recognized surgic...

AI Technical Summary

Problems solved by technology

[0003] Comminuted fractures of the interphalangeal joints of the hand (Pilon fractures) are difficult to operate due to comminuted fractures involving the articular surface. Not only is the elasticity of the rubber band of the dynamic traction frame uncontrollable, it is easy to cause complications such as postoperative joint swelling deformity, loss of function, and interphalangeal arthritis. So far, there is no good reduction and fixation device in the world

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