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Knee joint prosthesis and tibial component and femoral component thereof

A technology for artificial knee joints and components, applied in the directions of knee joints, elbow joints, joint implants, etc., can solve the problems such as the inability of the knee joint to bend too much, the lack of stability of the knee joint, etc., to maintain stability, The effect of reducing wear and reducing damage

Active Publication Date: 2016-10-19
花世源 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, the relative movement of the femoral implant a and the tibial component b can only rely on the cooperation of the groove a3 of the femoral implant a and the corresponding central protrusion b22 on the joint pad b2, so that the patient’s knee joint Insufficient postoperative stability, and the patient's knee joint cannot bend at a large angle after the operation

Method used

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  • Knee joint prosthesis and tibial component and femoral component thereof
  • Knee joint prosthesis and tibial component and femoral component thereof
  • Knee joint prosthesis and tibial component and femoral component thereof

Examples

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Embodiment Construction

[0056] Embodiments of the present invention will be described below with reference to the accompanying drawings, wherein the same elements will be described with the same reference symbols. In addition, it must be explained first that the terms "proximal or proximal", "far side or distal", "anterior" and "posterior" used in the following examples )", "medial", and "lateral", etc., are defined according to the anatomical posture and direction of indication. That is to say, the proximal side is called the head side, the far side is called the foot side; the front side is called the ventral side of the body, and the back side is called the back side of the body; It is the inner side, and the central line away from the body is called the outer side. In addition, although the following embodiments of the present invention are described by taking the knee joint of a human patient as an example, the present invention is not limited thereto. That is to say, the artificial knee joint...

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Abstract

The invention discloses an artificial knee joint and its tibia component and femur component. The tibial component includes an upper surface, an inferior surface opposite the upper surface, and a first groove. The first groove runs through the upper surface and the lower surface and is used for accommodating the cruciate ligament. The lower surface of the tibial component is provided with a plurality of first protrusions. Each of the first protrusions has at least one first through hole. The tibial component carries the femoral component. The femoral component includes a second groove. The second groove is also used to accommodate the cruciate ligament, and the femoral component is provided with a plurality of second protrusions on a surface away from the tibial component. Each of the second protrusions has at least one second through hole. The present invention can stably install the artificial knee joint after implantation without using bone nails, and can adopt cruciate ligament-retaining surgery to maintain the stability of the joint and reduce the wear and tear of the new joint.

Description

technical field [0001] The present invention relates to an artificial joint, in particular to an artificial knee joint and its tibial component and femoral component. Background technique [0002] The knee joint is the largest joint in the human body, which is responsible for supporting the weight of the human body and enabling the lower limbs to perform good flexion and extension activities. It includes the femoral condyle of the distal femur, the tibial plateau of the proximal tibia, ligaments (eg, anterior cruciate ligament, posterior cruciate ligament, medial ligament, lateral ligament, etc.), articular cartilage, and menisci. However, developmental defects of the lower extremity joints, poor standing posture, excessive exercise or aging often lead to wear and tear of the articular cartilage and meniscus, resulting in less lubricating fluid in the knee joint capsule, resulting in movement disorders such as knee joint pain, swelling, or difficulty in squatting, such as O...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38
CPCA61F2/38A61F2002/30001
Inventor 花世源
Owner 花世源
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