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Multi-purpose posterior cruciate ligament retention type femoral condyle column reinforcing cushion block

A cruciate ligament and femoral condyle technology, applied in the direction of femur, femoral head, bone implants, etc., to achieve bone preservation and better fixation

Pending Publication Date: 2018-08-21
JIASITE HUAJIAN MEDICAL EQUIP (TIANJIN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But when the patient has a variety of bone defects, diaphyseal fractures, or femoral osteoporosis, the existing solution will choose to use a revision prosthesis, so not only the removal of the posterior cruciate ligament, but also many osteotomies quantity

Method used

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  • Multi-purpose posterior cruciate ligament retention type femoral condyle column reinforcing cushion block
  • Multi-purpose posterior cruciate ligament retention type femoral condyle column reinforcing cushion block

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Such as figure 1 with figure 2 As shown, a multi-purpose posterior cruciate ligament preservation type femoral condyle post-reinforcing pad of the present invention includes a first bone joint interface 1, a second bone joint interface 2 and a column 3, and the column 3 is located at the first bone joint interface 1. And the second bone joint interface 2; the first bone joint interface 1 and the second bone joint interface 2 are both provided with a prosthetic connection structure 4, the prosthesis connection structure 4 is a biological coating or bone cement cavity The thickness of the first bone joining interface 1 and the thickness of the second bone joining interface 2 are the same or the thickness of the first bone joining interface 1 is greater than the thickness of the second bone joining interface 2 or the thickness of the first bone joining interface 1 is smaller than the second The thickness of the bone joint interface 2; the side of the post 3 is provided wit...

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PUM

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Abstract

The invention discloses a multi-purpose posterior cruciate ligament retention type femoral condyle column reinforcing cushion block which includes a first bone joint interface, a second bone joint interface and a column. The column is located between the first bone joint interface and the second bone joint interface. The first bone joint interface and the second bone joint interface are provided with prosthesis connecting structures. Each prosthesis connecting structure is a bio-coating or a bone cement joint cavity. The thickness of the first bone joint interface is the same as, or larger than or smaller than that of the second bone joint interface. When a patient is subjected to diseases of various different bone defects, backbone fracture or femur osteoporosis while having a sound posterior cruciate ligament function, through the cushion block column, a femoral condyle prosthesis is fixed by being connected with the femoral stem, the better fixation of the prosthesis and the patient's own bone is achieved; at the same time, the posterior cruciate ligament is reserved, and the bone is reserved to the largest extent.

Description

Technical field [0001] The invention belongs to the technical field of medical device design, and in particular relates to a multi-purpose posterior cruciate ligament retention type femoral condyle column reinforcement pad. Background technique [0002] At present, the two types of prostheses commonly used in total knee arthroplasty are the posterior cruciate ligament removal type (PS type) and the posterior cruciate ligament preservation type (CR type). The CR type is used when the patient’s posterior cruciate ligament is intact. Knee joint prosthesis can preserve the physiological function of the patient's posterior cruciate ligament while retaining the physiological bone mass between the condyles. However, when patients have various bone defects, diaphyseal fractures or femoral osteoporosis, the existing solutions will choose to use revision prosthesis, so not only need to remove the posterior cruciate ligament, but also add a lot of osteotomies the amount. Summary of the in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38A61F2/36
CPCA61F2/3609A61F2/38A61F2/3859A61F2/3877A61F2002/30062A61F2002/2825A61F2002/30329A61F2002/3611
Inventor 刘念张胜卿刘瑞赛黄绍
Owner JIASITE HUAJIAN MEDICAL EQUIP (TIANJIN) CO LTD