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Novel bionic titanium artificial joint prosthesis

An artificial joint, bionic titanium technology, applied in hip joint, elbow joint, knee joint, etc., can solve the problems of insufficient strength and stiffness, achieve good biocompatibility, simplify operation steps, and improve surgical efficiency.

Inactive Publication Date: 2018-03-27
ZHONGAO HUICHENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a new type of bionic titanium artificial joint prosthesis to solve the problem of insufficient strength and rigidity of the prior art artificial joint prosthesis and human bone tissue

Method used

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  • Novel bionic titanium artificial joint prosthesis
  • Novel bionic titanium artificial joint prosthesis
  • Novel bionic titanium artificial joint prosthesis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A new bionic titanium hip joint acetabular cup, such as figure 2 and Figure 4 As shown, the acetabular cup 1 is entirely made of biomimetic titanium material, and the inner wall 11 of the acetabular cup adopts the SMEAR treatment technology. The acetabular cup has no metal inner cup structure, and the inner wall 11 of the acetabular cup directly contacts the ball head 3 . The acetabular cup has no threaded holes. The thickness of the acetabular cup is 3mm.

Embodiment 2

[0041] A new bionic titanium hip joint acetabular cup, the acetabular cup is all made of bionic titanium material, and the inner wall of the acetabular cup adopts SMEAR treatment technology, and the acetabular cup has no metal inner cup structure. The acetabular cup has no threaded holes. The thickness of the acetabular cup is 6mm.

Embodiment 3

[0043] A new bionic titanium hip joint acetabular cup, the acetabular cup is all made of bionic titanium material, and the inner wall of the acetabular cup adopts SMEAR treatment technology, and the acetabular cup has no metal inner cup structure. The acetabular cup has no threaded holes. The thickness of the acetabular cup is 5mm.

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Abstract

The invention relates to a novel bionic titanium artificial joint prosthesis comprising at least an acetabular cup and a femoral stem of hip joints or a tibial tray of knee joints; the acetabular cupand femoral stem or tibial tray are prepared from bionic titanium material; The new bionic titanium artificial joint prosthesis has good biocompatibility. The application of lightweight bionic titanium material greatly reduces the quality of the prosthesis and improves the comfort of the patient. The porosity of the acetabular cup, femoral stem, and biomimetic material layer can reach 50% to 85%.The high porosity facilitates cell crawling and adsorption, and results in rapid bone ingrowth and vascularization, which effectively improves the long-term stability of the joint prosthesis in the human body and avoids the secondary surgery brought about by loosening of the prosthesis.

Description

technical field [0001] The invention belongs to the application of new materials in the field of medical devices, in particular to a novel bionic titanium artificial joint, including hip joints, knee joints, elbow joints and other products. Background technique [0002] Artificial joints are the most mature and successful products among surgical implant devices, and they are widely used. For the implantation of artificial joints, mechanical compatibility and biocompatibility need to be satisfied. First of all, the replacement part of the joint needs to bear a large dynamic load. The artificial joint must have sufficient strength, toughness and fatigue resistance to maintain the longevity of the joint implant. Titanium and titanium alloys have been widely studied and used in human joint repair because of their elastic modulus closest to human tissue and good biocompatibility, but there are still problems such as poor osseointegration. Under stress, the stress-bearing metal ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/30A61F2/32A61F2/38
Inventor 金攻李瑞玲涂江平李众利李玲玲郭立
Owner ZHONGAO HUICHENG TECH CO LTD
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