Supporting structure, prosthesis and prosthesis system

Abstract

The invention provides a supporting structure, a prosthesis and a prosthesis system. The supporting structure can improve a supporting force for the prosthesis and enables the extension function of the prosthesis to be stable and effective. The supporting structure comprises an extension part and a blocking part, wherein the extension part comprises a body and a plurality of brim structures positioned at the near end of the body; the plurality of brim structures extend outwards along the radial direction of the body so as to extend into a limiting part; furthermore, the plurality of brim structures are also arranged along the axial direction of the body; the body is provided with an inner cavity with a closed end, and is provided with a hollowed-out structure at the part close to the plurality of brim structures; the blocking part has a hollow structure with two opened ends, is arranged in the inner cavity, and is used for covering the hollowed-out structure; when the plurality of brimstructures emit heat, the parts, contacted with the plurality of brim structures, of the limiting part are melted, so that the limiting of the limiting part for the supporting structure is removed.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a supporting structure, a prosthesis and a prosthesis system. Background technique [0002] In recent years, extendable prosthesis has been widely used in limb salvage technology, especially the limb salvage technology for children with malignant bone tumors, which can avoid secondary surgery, effectively reduce secondary trauma to patients, and obtain good results. Clinical efficacy. [0003] At present, a variety of structures of extendable prosthesis are provided. For example, patent application CN107518961A discloses a magnetocaloric extendable prosthesis, which includes a magnetic generation control device for controlling the magnetic generation device to generate an alternating magnetic field. Under the action of the support tube, the boss of the support tube heats up and melts the limit structure, and then pushed by the elastic force of the compression spring, the...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the object of the present invention is to provide a support structure, a prosthesis and a prosthesis system to solve one or more of the problems of insufficient supporting force of the existing prosthesis, failure of the spring extension function, etc.

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