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Tibia pad

A technology of tibial pad and articular surface, applied in the field of tibial pad

Pending Publication Date: 2021-07-30
SUZHOU MICROPORT ORTHORECON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to provide a tibial liner for how to improve the stability of the knee joint after total knee arthroplasty

Method used

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  • Tibia pad
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Embodiment Construction

[0043] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0044] In order to better illustrate the technical solutions involved in the present invention, firstly, the orientation nouns involved in each embodiment are explained.

[0045] Sagittal plane: the cut plane formed by longitudinally cutting the human body or joint into left and right par...

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Abstract

The invention relates to a Tibia pad. The Tibia pad comprises an inner articular surface and an outer articular surface; wherein a cross section line formed by intersection of the inner side articular surface and the first sagittal plane comprises a first arc, a first linear section and a second arc which are connected in sequence, and the curvature radius of the first arc is larger than or equal to that of the second arc; a cross section line formed by the intersection of the outer articular surface and the second sagittal plane comprises a fourth arc, a second straight line section and a fifth arc which are connected in sequence; wherein the curvature radius of the fourth arc is larger than or equal to that of the fifth arc. The Tibia pad is good in stability.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a tibial pad. Background technique [0002] Total knee replacement surgery has matured as surgical techniques have improved and knee prostheses have improved. Total knee replacement is an effective treatment for advanced arthritis. With the continuous improvement of prostheses and the development of knee surgery techniques, total knee replacement has achieved better therapeutic effects. However, traditional total knee replacement However, there are still problems of "paradoxical forward movement" and knee flexion instability after TKA, where "paradoxical forward movement" refers to the movement of the femur relative to the tibia in the process of knee flexion after total knee arthroplasty. Normal backward movement becomes forward movement. "Contradictory forward shift" and knee flexion instability will lead to increased stress on the patellofemoral joint surface and...

Claims

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Application Information

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IPC IPC(8): A61F2/38A61F2/30
CPCA61F2/30728A61F2/3859A61F2/389A61F2002/30731
Inventor 孙延东史忠兵赵开宇钱昦倩
Owner SUZHOU MICROPORT ORTHORECON CO LTD
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