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Ankle joint prosthesis

An ankle joint and prosthesis technology, applied in the medical field, can solve problems such as not being able to adapt to the shape of the tibial medullary cavity, and achieve the effect of reducing the risk of loosening and failure and improving stability

Pending Publication Date: 2020-02-28
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide an ankle joint prosthesis to solve the problem that the ankle joint prosthesis in the prior art cannot adapt to different tibial medullary cavity shapes

Method used

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  • Ankle joint prosthesis
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Embodiment Construction

[0036] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0037] The present invention provides an ankle joint prosthesis 10, please refer to Figure 1 to Figure 5, the ankle joint prosthesis 10 includes a tibial stem 20, a distal tibial prosthesis 30 and a tibial connector 40, the tibial stem 20 is used to be arranged in the tibial medullary cavity of the human body, so that the tibial stem 20 is connected to the tibia in the human body; The tibial connector 40 is arranged between the tibial stem 20 and the distal tibial prosthesis 30, so that the tibial stem 20 and the distal tibial prosthesis 30 are connected through the tibial connector 40; wherein the tibial connector 40 has a first connecting portion 41 And the second connecting portion 42, the...

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Abstract

The invention provides an ankle joint prosthesis. The ankle joint prosthesis comprises a tibial stem, a distal tibial prosthesis and a tibial connector. The tibial stem is used for being disposed in atibial marrow cavity of a human body. The tibial connector is disposed between the tibial stem and the distal tibial prosthesis, so as to connect the tibial stem with the distal tibial prosthesis through the tibial connector. The tibial connector comprises a first connection portion and a second connection portion, the second connection portion is used for being connected with the tibial stem, and the first connection portion is used for being connected with the distal tibial prosthesis. A first center line of the first connection portion is parallel to a second center line of the second connection portion, the tibial connector is rotated relative to the distal tibial prosthesis to adjust the position of the second center line relative to a center line of the distal tibial prosthesis, theposition of the tibial stem relative to the distal tibial prosthesis is further adjusted, and accordingly, the tibial stem can well adapt to different bone marrow cavity shapes.

Description

technical field [0001] The invention relates to the medical field, in particular to an ankle joint prosthesis. Background technique [0002] Artificial joint replacement is mainly used for patients suffering from joint pain, joint deformity, and loss of joint function caused by various trauma, autoimmune diseases, and degenerative diseases. With regard to the ankle joint, the commonly used ankle arthrodesis will cause the patient to lose almost all of the ankle joint movement function, while the ankle joint replacement can retain the partial movement function of the patient's ankle joint, and can completely solve the pain and deformity of the patient's ankle joint question. [0003] However, the existing ankle joint prosthesis used in ankle joint replacement mainly consists of three parts: the tibial plate, the talar support and the polyethylene liner, wherein the tibial plate is used to connect with the tibia in the human body through the tibial medullary cavity, and the t...

Claims

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Application Information

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IPC IPC(8): A61F2/42A61F2/30
CPCA61F2/30767A61F2/4202A61F2002/30329A61F2002/30518A61F2002/30537A61F2002/4205
Inventor 苏永琳
Owner BEIJING AKEC MEDICAL
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