Full talus prosthesis with porous core and preparation method

A talus and prosthesis technology, applied in the field of full talar prosthesis and preparation, can solve the problems of poor adaptability, lack of stress stimulation and force conduction in bone tissue, adverse effects of long-term implantation, etc. Compatibility and quality of life of patients, and the effect of improving rehabilitation outcomes

Pending Publication Date: 2021-05-28
重庆熙科医疗科技有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a total talus prosthesis with a porous core and a preparation method, aiming at solving the problem of poor adaptability in the prior art, which easily causes stress shielding, and makes the growth of bone tissue lack stress stimulation and force conduction. Problems with adverse effects from long-term implantation

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  • Full talus prosthesis with porous core and preparation method
  • Full talus prosthesis with porous core and preparation method
  • Full talus prosthesis with porous core and preparation method

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Embodiment Construction

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0023] First, see figure 1 and figure 2 , the present invention provides a total talus prosthesis with a porous core, comprising:

[0024] It includes a talar prosthesis body 1, a first fusion body 2 and a second fusion body 3, the talar prosthesis body 1 is a hollow structure, the first fusion body 2 has a first fusion surface 21 and a first through hole 22, The first through hole 22 is located in the first fusion surface 21, the first fusion body 2 is fixedly connected with the talar prosthesis body 1, and is located on one ...

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Abstract

The invention discloses a full talus prosthesis with a porous core and a preparation method, wherein the full talus prosthesis comprises a talus prosthesis body, a first fusion body and a second fusion body; the interior of the talus prosthesis body is filled with a porous lightweight structure; the relative density can be adjusted according to the natural weight of a human body; the weights of the talus prosthesis body and the first fusion body are the same; and the adaptability of the implant is improved; a nano interface is prepared by adopting an anodic oxidation or micro-arc oxidation method; a full talus prosthesis is formed by adopting a metal 3D printing process, the postoperative rehabilitation effect of collapsed talus osteonecrosis is effectively improved, the adaptability of an artificially implanted joint and the living quality of a patient are improved, in addition, a screw hole suitable for implanting the prosthesis is further designed, use of an implanting tool and fixation of screws are facilitated, and surgical approach and prosthesis position adjustment are facilitated.

Description

technical field [0001] The invention relates to the fields of medicine and orthopedic joints, in particular to a total talus prosthesis with a porous core and a preparation method. Background technique [0002] The talus is a key bony structure connecting the lower limbs and the foot. It is irregular in shape, covered by five articular surfaces, and has a complex anatomical structure. It is a turning point in the mechanics of the lower limbs and feet, with stress concentration and particularly important mechanical properties. It involves five movable joints, 30 The remaining tendons (muscles) and ligaments pass through and are particularly demanding for movement. Collapsing talus osteonecrosis seriously affects standing and walking, and the predilection of foot and ankle lesions has a morbidity rate of 100%. Foot and ankle surgery colleagues at home and abroad mainly adopt total talus excision and arthrodesis around the talus at the expense of the talus function. The postop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/28
CPCA61F2/28A61F2002/30108A61F2002/3028A61F2002/30948A61F2002/30985
Inventor 刘飞王森张凯飞于宁谢海琼刘炼立黎万乔
Owner 重庆熙科医疗科技有限公司
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