Implantable toe joint prosthesis

A toe joint and prosthesis technology, applied in the field of implantable toe joint prosthesis, can solve the problems of loosening of the medullary cavity, poor bearing capacity, and damage to the joint capsule, so as to accelerate the rate of osseointegration, reduce weight, and facilitate bone growth input effect

A toe joint and prosthesis technology, applied in the field of implantable toe joint prosthesis, can solve the problems of loosening of the medullary cavity, poor bearing capacity, and damage to the joint capsule, so as to accelerate the rate of osseointegration, reduce weight, and facilitate bone growth input effect

CN112754737APending Publication Date: 2021-05-07BEIJING CHUNLIZHENGDA MEDICAL INSTR

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  • Implantable toe joint prosthesis
  • Implantable toe joint prosthesis
  • Implantable toe joint prosthesis

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Embodiment Construction

[0036] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0037] In order to solve the problems in the prior art that the prosthesis is easy to rotate and loosen in the growing medullary cavity, and has poor implantability / poor fixation, the present invention is an implantable toe joint prosthesis, which is mainly aimed at metatarsal head necrosis and osteonecrosis of the toe joint. Arthritis, senile valgus and other problems, according to figure 1 As shown, it includes the metatarsal needle 1, the metatarsal abutment 2, the metatarsal joint head 3, the spacer 4, the phalanx abutment 5, and the phalanx 6 arranged in sequence from top to bottom. The metatarsal needle 1 and the metatarsal base The table 2 is integrally forme...

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Abstract

The invention provides an implantable toe joint prosthesis. The implantable toe joint prosthesis comprises a metatarsal bone marrow needle, a metatarsal bone base station, a metatarsal joint head, a cushion block, a toe bone base station and a toe bone marrow needle which are sequentially arranged from top to bottom, wherein the metatarsal bone marrow needle and the metatarsal bone base station are integrally formed, the metatarsal bone marrow needle is vertically arranged, the metatarsal bone base station is obliquely arranged, and an obtuse angle is formed between the axis of the metatarsal bone marrow needle and the axis of the metatarsal bone station; and the metatarsal bone base station is connected with the metatarsal joint head in a conical fit mode, the metatarsal joint head is connected with the toe bone base station through a gasket, the toe bone base station and the toe bone marrow needle are integrally formed, and the axis of the toe bone base station and the axis of the toe bone marrow needle are collinear. The implantable toe joint prosthesis has the advantages that bone ingrowth is facilitated, the synostosis rate is increased, the weight is reduced, and fixation of the interior of a medullary cavity is facilitated.

Description

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Claims

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Application Information

Patent Timeline
07 May 2021
Publication
CN112754737A