Biological fixation type tibia platform

A technology of tibial platform and platform, applied in the direction of joint implants, joint implants, elbow joints, etc., can solve the problems of bone cement debris prosthesis loosening, unfavorable revision, etc., and achieve stable anti-rotation ability and good effect Effect

Inactive Publication Date: 2014-04-09
BEIJING AKEC MEDICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most knee joints are fixed with bone cement, but in fact, the bone cement itself does have some defects, resulting in some complications, such as bone cement debris will cause prosthesis loosening, which is not conducive to further revision, etc.

Method used

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  • Biological fixation type tibia platform
  • Biological fixation type tibia platform
  • Biological fixation type tibia platform

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0029] like figure 1 As shown, the biofixed tibial platform according to the present invention is characterized in that it consists of a platform main body 1 and an intramedullary rod 2 .

[0030] like figure 2 As shown, according to the biofixation type tibial platform of the present invention, it is characterized in that a biological coating 14 is attached to the lower surface of the platform main body 1. The biological coating can be a hydroxyapatite bioceramic coating or a pure titanium powder coating. The biological coating Hydroxyapatite bioceramics or pure titanium powder can be attached to the surface of the tibial plateau by plasma arc spraying to form a thin layer that can induce bone ingrowth and become the biological fixation of the tibial plateau on the bone surface. Base.

[0031] like figure 2 As shown, according to the biofixed tibial...

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Abstract

The invention discloses a biological fixation type tibia platform for surgery implants. The biological fixation type tibia platform is composed of a platform body and an intramedullary rod. A biological coating adheres to the lower surface of the platform body, and thorn-shaped protrusions are arranged on the platform body which facilitates initial fixation of the platform. The intramedullary rod is connected with the platform through a conical structure, the biological coating adheres to the upper portion of the intramedullary rod, and spine-shaped structures which are evenly distributed are arranged on the columnar face of the lower portion of the intramedullary rod. A prosthesis can be conveniently inserted into the bone, meanwhile, the anti-rotation function is provided, and the biological fixation type tibia platform can still be firmly fixed under the action of rotation force. The biological fixation type tibia platform can provide immediate fixation after an operation, the good anti-rotation function is achieved, and due to different combination modes, the biological fixation type tibia platform meets the requirements of different patients.

Description

technical field [0001] The invention relates to the technical field of clinical medical surgery, in particular to a surgical implant prosthesis, an implant used for knee joint surface replacement, and in particular to a biofixed tibial platform. Background technique [0002] The knee joint is one of the large joints of the lower limbs of the human body. Knee joint osteoarthrosis is also a common and frequently-occurring disease in the elderly. Since the wear or degeneration of articular cartilage can cause joint pain, knee arthroplasty, the most commonly used is surface replacement, which is to cut off a thin layer of cartilage and subchondral bone from the femur and tibia of the knee joint, and then use Bone cement or cobalt-chromium-molybdenum alloy metal implants are directly fixed to the osteotomy surface. The part that replaces the bone on the femoral side is called the femoral condyle, and the part that replaces the bone on the tibial side is called the tibial plateau....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/38A61L27/32
Inventor 王彩梅
Owner BEIJING AKEC MEDICAL
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