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Tibia far-end ankle joint prosthesis

An ankle joint and distal technology, applied in the direction of ankle joints, joint implants, joint implants, etc., can solve problems such as high cost, inability to adapt to patients, poor stability of ankle joint prosthesis, etc., to reduce Low cost, promote bone ingrowth, and fast bone ingrowth

Pending Publication Date: 2020-11-03
BEIJING LIDAKANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides an ankle joint prosthesis at the distal end of the tibia. The existing prosthesis has the following problems: the ankle joint prosthesis is easy to loosen, the initial bone ingrowth of the ankle joint prosthesis is difficult, and the medium and long-term stability of the ankle joint prosthesis Poor performance, not suitable for every patient, high cost

Method used

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Embodiment Construction

[0024] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0025] Such as Figure 1-6 As shown, the present embodiment provides a distal tibial ankle joint prosthesis 2, comprising a medullary cavity extension handle 1, a distal ankle joint and a backbone extension section 3, and the backbone extension section 3 is installed on the medullary cavity extension handle 1 and the distal end between the ankle joints. The medullary cavity extension handle 1 is connected to the medullary cavity o...

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Abstract

The invention provides a tibia far-end ankle joint prosthesis. The tibia far-end ankle joint prosthesis comprises a medullary cavity extension handle, a far-end ankle joint and a backbone extension section, wherein the backbone extension section is mounted between the medullary cavity extension handle and the far-end ankle joint, the medullary cavity extension handle is connected with a medullarycavity at the near end of a tibia, and a 3D printing bone trabecula structure is arranged on the contact surface of the far-end ankle joint, talus and fibula. A locking nail is inserted into the nailhole of the far-end ankle joint to be connected with the talus and the fibula, so that the far-end ankle joint is fixedly connected with the talus and the fibula. The tibia far-end ankle joint prosthesis is suitable for ankle joint prosthesis replacement of a tibia far-end tumor excision patient, the 3D printing bone trabecula structure can effectively promote bone ingrowth, the prosthesis is morestable in combination with a locking nail, and the ankle joint prosthesis is high in initial bone ingrowth speed and good in medium and long term stability; And when the tibia far-end ankle joint prosthesis is used, the whole tibia does not need to be replaced, the intact tibia is reserved, only the tibia with a focus is replaced, the length of the prosthesis is suitable for each patient due to the arrangement of the backbone extension section, and the manufacturing cost is reduced.

Description

technical field [0001] The invention relates to the technical field of artificial prosthesis replacement, in particular to a tibial distal ankle joint prosthesis. Background technique [0002] When the ankle joint of the human body needs to be repaired due to a patient, or encounters a tumor or a comminuted fracture, the ankle joint of the patient is replaced with an ankle joint prosthesis to repair the ankle joint of the human body. The ankle joint prosthesis in the prior art is often not firmly fixed due to the poor bone quality of the patient, which makes the ankle joint prosthesis easy to loosen, and the initial bone growth of the ankle joint prosthesis is difficult, which affects the center of the ankle joint prosthesis. For long-term stability, the existing one-piece structure of the ankle joint and the osteotomy directly connected to the tibia cannot be well adapted to each patient, and the cost is high. Contents of the invention [0003] The present invention prov...

Claims

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Application Information

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IPC IPC(8): A61F2/42
CPCA61F2/4202A61F2002/30985A61F2002/4205A61F2002/4207A61F2002/421
Inventor 徐宁马淑芹朱建磊
Owner BEIJING LIDAKANG TECH
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