Talus prosthesis

A technology of talus and prosthesis, applied in the field of talus prosthesis, which can solve problems such as lack of biological functions, and achieve the effects of easy installation and fixation, convenient clinical application, and great medical value

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 generally only plays a structural supporting role and does not have biological functions

Method used

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  • Talus prosthesis
  • Talus prosthesis
  • Talus prosthesis

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Embodiment Construction

[0016] figure 1 Is the first schematic diagram of the talus prosthesis of the present invention, figure 2 Is the second schematic diagram of the talus prosthesis of the present invention, image 3 It is the third schematic diagram of the talar prosthesis of the present invention, as shown in the figure: the talar prosthesis of the present invention includes the subtalar articular surface 1 and the talar navicular articular surface 2; the subtalar articular surface 1 and / or the talar navicular articular surface 2 is a porous structure.

[0017] In this embodiment, the subtalar articular surface 1 and / or the navicular articular surface 2 is provided with a hydroxyapatite coating, which is more conducive to the rapid speed of the subtalar articular surface 1 and the calcaneus, and the talar navicular articular surface 2 and the navicular bone. Fusion growth.

[0018] In this embodiment, the subtalar articular surface 1 is provided with at least one fixing device for fixing the talus...

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Abstract

The invention discloses a talus prosthesis including a subtalar articular surface and a talonavicular articular surface. The subtalar articular surface and / or the talonavicular articular surface are of porous structures. The talus prosthesis has biological functions, facilitates quick fusion and growth of the prosthesis and a calcaneus and a scaphoid, and thus has great medical value.

Description

Technical field [0001] The invention relates to a prosthesis, in particular to a talus prosthesis. Background technique [0002] Collapsed talus necrosis is mostly due to the weight-bearing destruction of the talus body and excessive bone loss, which prevents ankle replacement surgery. Talar excision and fusion of four joints around the talus are often used. The former tends to cause instability around the talus, while the latter tends to cause restricted movement of the ankle joint. How to effectively reconstruct the total talus and restore the ankle joint function is the main problem for orthopedists to deal with collapsed talus necrosis. Prosthesis replacement provides a good technical means for rebuilding the total talus and restoring the ankle joint function. The existing talus prostheses generally only play a structural support role and do not have biological functions. How to develop a personalized artificial talus prosthesis with biological functions is the main proble...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/42
CPCA61F2/4202A61F2002/4207A61F2310/00796
Inventor 唐康来范树迁王晗谢美明鲁成林袁成松周兵华陶旭王森
Owner THE FIRST AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIVERSITY OF PLA
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