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

A combined frame and external fixation technology, applied in the field of medical devices, can solve the problems of lack of a good reduction and fixation device, uncontrollable elasticity of rubber bands, and incomplete reduction of articular surfaces, so as to reduce traumatic arthritis, shorten operation time, The effect of simplifying the difficulty of surgery

Pending Publication Date: 2021-01-19
HEILONGJIANG UNIV OF CHINESE MEDICINE
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  • Abstract
  • Description
  • Claims
  • Application Information

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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

Method used

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

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Embodiment Construction

[0016]The present invention will be further explained below in conjunction with the drawings.

[0017]Such asfigure 1 As shown, ①1.5cm double-threaded fixing rod ②Ring-shaped connecting device (invented) ③Thread ④Double-threaded fixing needle with 3.5cm length ⑤Hollow threaded sleeve ⑥Ring-shaped screw hole ⑦Solid fixing rod ⑧ Ring cup⑨3D printed individualized joint micro-gasket (first creation)

[0018]The combined frame of the present invention is composed of a ring-shaped connecting device, a double-threaded support frame and a 3D printed micro-pad for interphalangeal joints. The invention is mainly suitable for comminuted fractures (pilon fractures) of the interphalangeal joints of the hands, which can be closed or open fractures.

[0019]Before the operation, disinfect the selected combination frame and joint micropads.

[0020]The operation is performed under brachial plexus anesthesia and airbag tourniquet, and routinely disinfected towels. 1. If there is no damage to the peripheral ner...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/66
CPCA61B17/645A61B17/6425A61B17/66
Inventor 孟宪宇王磊李凤久
Owner HEILONGJIANG UNIV OF CHINESE MEDICINE
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