a knee prosthesis

A knee joint prosthesis and prosthesis technology, applied in the field of knee joint prosthesis, can solve the problems of fat embolism, fat dripping into human blood, endangering the life safety of patients, etc., to prevent slippage, increase the contact area, and avoid adverse effects Effect

Active Publication Date: 2022-03-25
BEIJING CHUNLIZHENGDA MEDICAL INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The knee joint prosthesis in the prior art center is often made of bone cement, and the bone cement monomer may enter the pulmonary circulation through the blood during and after the operation, thereby causing pulmonary embolism and endangering the life safety of the patient; Internal high pressure causes fat to drip into human blood, causing fat embolism

Method used

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Embodiment Construction

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0025] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly or indirectly located on the other component. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. Terms "top", "bottom", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outer", etc. The indicated orientation or position is based on the orientation or position shown in the drawings, which is only for th...

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PUM

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Abstract

The invention relates to the technical field of medical devices and provides a knee joint prosthesis. Including: femoral ankle prosthesis, tibial plateau pad prosthesis and tibial plateau prosthesis connected in sequence, wherein the base surfaces of the femoral ankle prosthesis and tibial plateau prosthesis are respectively provided with 3D printed coating one and 3D Printed coating two; the base surface of the femoral ankle prosthesis is provided with a concave area one, and the base surface of the tibial plateau prosthesis is provided with a concave area two; the coating one includes an inner coating one and an outer coating Layer 1, the outer coating layer 1 has a zigzag structure; the coating layer 2 includes an inner coating layer 2 and an outer coating layer 2, and the outer coating layer 2 has a zigzag structure. The beneficial effect of the present invention is that: the prosthesis can achieve good biological fixation, avoiding all adverse effects caused by non-biological prosthesis relying on bone cement; the thickness of the trabecular bone area printed in 3D on the surface of the substrate is appropriate, and the adhesion is strong, It is conducive to bone ingrowth, and the coating strength is better, which is conducive to the medium and long-term stability of the prosthesis.

Description

technical field [0001] The present invention relates to the technical field of medical devices, and more particularly, to a knee joint prosthesis. Background technique [0002] Laser cladding technology has brought qualitative changes to the processing technology of the medical device industry, making many impossible possibilities and many difficulties simple. In recent years, laser cladding technology has developed rapidly, but it is still blank in the medical industry. It is believed that in the near future, laser cladding technology will be applied to the medical device industry. Laser cladding technology can be cladding on substrates of different materials, and the powder materials of cladding can also be varied, which can be applied to different parts of the human body, and has strong applicability. [0003] The human trabecular bone structure is the extension of cortical bone in cancellous bone, which is an irregular three-dimensional grid structure in the bone marrow...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): A61F2/30A61F2/38
CPCA61F2/3859A61F2/389A61F2/30771A61F2/30942A61F2002/30329A61F2002/30784A61F2002/30985A61F2002/2825A61F2002/2892A61F2002/3097
Inventor史春宝许奎雪卢小强何建民
OwnerBEIJING CHUNLIZHENGDA MEDICAL INSTR