Detachable talus prosthesis

A talus and prosthesis technology, applied in the field of prosthetic devices, can solve the problems of difficult manufacture, inconsistent processing requirements, and no biological function, and achieve the effect of facilitating the manufacture of prostheses

Inactive Publication Date: 2017-05-10
THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing talus prosthesis has the following disadvantages: first, the prosthesis only serves as a structural support and has no biological function; second, the prosthesis with biological function is not easy to manufacture due to inconsistent processing requirements for each component

Method used

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  • Detachable talus prosthesis
  • Detachable talus prosthesis
  • Detachable talus prosthesis

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Effect test

Embodiment Construction

[0022] figure 1 It is the first schematic diagram of the subtalar joint assembly of the detachable talus prosthesis of the present invention, figure 2 It is the second schematic diagram of the subtalar joint assembly of the detachable talus prosthesis of the present invention, image 3 It is the third schematic diagram of the subtalar joint assembly of the detachable talus prosthesis of the present invention, Figure 4 It is the first schematic diagram of the tibiotalar joint assembly of the detachable talar prosthesis of the present invention, Figure 5 It is the second schematic diagram of the tibiotalar joint assembly of the detachable talar prosthesis of the present invention, Image 6 It is the overall schematic diagram of the detachable talus prosthesis of the present invention. As shown in the figure: the detachable talar prosthesis of the present invention includes a subtalar joint assembly 1 and a tibiotalar joint assembly 2 .

[0023] In this embodiment, the sub...

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Abstract

The invention discloses a detachable talus prosthesis which comprises a talonavicular subtalar joint assembly and a tibiotalar joint assembly. On one hand, the detachable talus prosthesis is formed by combining the talonavicular subtalar joint assembly and the tibiotalar joint assembly and is easy to manufacture; on the other hand, the subtalar joint surface and talonavicular joint surface are of porous structures, and the detachable talus prosthesis has a biological function and facilitate rapid fusion and growth of prosthesis and calcaneus and scaphoid bone.

Description

technical field [0001] The invention relates to a prosthesis device, in particular to a talus prosthesis device. Background technique [0002] Collapsible talus osteonecrosis is mostly due to the load-bearing damage of the talus body and excessive bone loss, so ankle joint replacement surgery cannot be performed. Talus excision and arthrodesis around the talus are often used. The former can easily lead to instability around the talus, and the latter can easily lead to limited ankle mobility. How to effectively reconstruct the total talus and restore ankle function is the main problem for orthopedic surgeons in dealing with osteonecrosis of the talus. Prosthesis replacement provides a good technical means for reconstructing the total talus and restoring the function of the ankle joint. The existing talus prosthesis has the following disadvantages: first, the prosthesis only serves as structural support and has no biological function; second, the prosthesis with biological f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/42
CPCA61F2/4202A61F2002/4207A61F2240/002A61F2310/00023A61F2310/00029A61F2310/00059A61F2310/00101A61F2310/00796
Inventor 唐康来王晗范树迁鲁成林谢美明陶旭袁成松周兵华王森
Owner THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA
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