Design method for tantalum coating artificial shoulder prosthesis

A design method, tantalum coating technology, applied in the field of biomedical composite materials, to achieve the effect of increasing bone ingrowth, high bonding strength, and good biocompatibility

Inactive Publication Date: 2011-04-06
XIAN FUAN INNOVATION CONSULTATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a design method of a tantalum-coated artificial shoulder joint prosthesis, which overcomes the shortcomings of the current artificial prosthesis coating, improves the fixation effect of the artificial prosthesis in the human body, and prolongs the service life of the artificial prosthesis

Method used

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  • Design method for tantalum coating artificial shoulder prosthesis
  • Design method for tantalum coating artificial shoulder prosthesis
  • Design method for tantalum coating artificial shoulder prosthesis

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Embodiment 1

[0018] Such as figure 1 As shown, the present invention includes three parts: the handle body 1, the handle neck 2 and the humerus ball head 5; The handle is cylindrical or conical. One end of the cylindrical or conical body is thinner, and the other end gradually becomes thicker. The prosthesis gradually widens along the upper and lower sides and forms an excessive arc, forming a fan-shaped plate with a thickness of 6-12mm. Structure - handle neck 2, the angle between the middle axis of the handle neck and the handle body is 90-145°. There is a through hole 10 in the center of the handle, which is cylindrical or cuboid in shape. The handle hole 10 is used to fix the shoulder joint ligament and bone tissue during operation; the handle 2 extends and transitions into a cone-shaped handle bottom 3 , the bottom 3 of the shank has several short columnar protrusions 6, 7 which are connected with several cylindrical grooves 8, 9 at the bottom 4 of the hemispherical humeral head to f...

Embodiment 2

[0025] Using materials such as medical stainless steel 00Cr18Ni14Mo3 or 00Cr18Ni15Mo3N, titanium Ti, titanium alloy Ti-6Al-4V or cobalt-chromium-molybdenum alloy Co30Cr6Mo0.35C as the base part of the prosthesis, taking advantage of its high mechanical strength, the artificial prosthesis provides more Strong mechanical strength, so that the prosthesis can bear the physiological load and motion load of the human body without material fatigue or damage; the application of hard Al 2 o 3 Or SiC sand is used as the medium to carry out sandblasting pretreatment on the outer surface of the stem 1 of the artificial prosthesis base and the outer surface of the shoulder cup 3 to form a rough surface on the surface of the prosthesis base to facilitate the bonding strength of the coating; adopt biocompatible Metal tantalum material with good performance, corrosion resistance, wear resistance and high bonding strength is used as the coating material. The contact part between the base of th...

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Abstract

The invention relates to an artificial shoulder prosthesis, in particular to a design method for the artificial shoulder prosthesis coated with a tantalum microporous coating. The artificial shoulder prosthesis comprises a prosthesis body, a prosthesis neck extended upwards from the prosthesis body, and a humeral ball head sleeved at the upper end of the neck, and is characterized in that: the outer surface of the prosthesis body is coated with the tantalum coating with a micoporous structure. The defects of the coating of the conventional artificial prosthesis are overcome, the fixation effect of the artificial prosthesis in a human body is improved, and the service life of the artificial prosthesis is prolonged.

Description

technical field [0001] The invention relates to an artificial shoulder joint prosthesis, in particular to a design method of a tantalum-coated artificial shoulder joint prosthesis provided with a tantalum microporous coating on the surface, and belongs to the application field of biomedical composite materials. Background technique [0002] At present, bioceramic coating materials and microporous metal coating biomaterials have become the main direction of prosthesis surface treatment, represented by hydroxyapatite (HA) and titanium (Ti) coatings respectively. They are HA(Ca 10 (PO 4 ) 6 (OH) 2 ) and Ti metal are coated on the surface of medical stainless steel or Ti metal matrix to form a coating composite material with a certain pore structure to increase the amount of bone ingrowth after implantation of the prosthesis and achieve the stability of the prosthesis in vivo. Chinese patent specification CN 201154007Y discloses a hydroxyapatite-coated artificial joint prost...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/40A61L27/30A61L27/04A61L27/06A61L27/16
Inventor 段永宏朱庆生郭飞阮骊韬阮绍萍王仁李矛李敬娥
Owner XIAN FUAN INNOVATION CONSULTATION
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