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Whole coxa thighbone prosthesis and method for making same

A technology of femoral head and prosthesis, applied in the direction of femoral head, prosthesis, hip joint, etc., can solve the problem that the advantages of polymer composite materials are not fully reflected, achieve a good biomechanical environment, reduce stress shielding, and reduce bone loss. absorption effect

Inactive Publication Date: 2005-03-16
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these material designs have shown certain advantages in terms of firm integration with bone and effective reduction of proximal bone resorption, they still cannot avoid the inherent defects of metal materials as biomedical materials, and the advantages of polymer composite materials have not been perfectly reflected.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The polyetheretherketone resin is dissolved in dichloroethane to prepare a glue solution with a solid content of 10% (percentage by weight), and the glue solution is brushed on the carbon fiber or carbon fiber cloth. Weigh the carbon fiber or carbon fiber cloth before brushing. After the glue is applied, the solvent will volatilize and weigh again to know the glue content. You can paint multiple times until the required glue content is reached. The inner layer material of the prosthesis structure contains 50% glue, and the outer layer material contains 80% glue. Cut the carbon fiber or carbon fiber cloth that has reached the designed glue content according to the shape of the mandrel or the prosthesis, and bind the cut carbon fiber or carbon fiber cloth according to the designed layering direction according to the required amount of material, and heat the mold to 400°C. Open the mold, quickly put the bundled composite material into the mold cavity to close the mold, pre...

Embodiment 2

[0016] The polyetheretherketone resin is dissolved in dichloroethane to prepare a glue solution with a solid content of 20% (percentage by weight), and the glue solution is brushed on the carbon fiber or carbon fiber cloth. Weigh the carbon fiber or carbon fiber cloth before brushing. After the glue is applied, the solvent will volatilize and weigh again to know the glue content. You can paint multiple times until the required glue content is reached. The inner layer material of the prosthesis structure contains 60% glue, and the outer layer material contains 75% glue. Cut the carbon fiber or carbon fiber cloth that has reached the designed glue content according to the shape of the mandrel or the prosthesis, and bind the cut carbon fiber or carbon fiber cloth according to the designed layering direction according to the required amount of material, and heat the mold to 400°C. Open the mold, quickly put the bundled composite material into the mold cavity to close the mold, pre...

Embodiment 3

[0018] The polyether ether ketone resin is dissolved in dichloroethane to prepare a glue solution with a solid content of 30% (percentage by weight), and the glue solution is brushed on the carbon fiber or carbon fiber cloth. Weigh the carbon fiber or carbon fiber cloth before brushing. After the glue is applied, the solvent will volatilize and weigh again to know the glue content. You can paint multiple times until the required glue content is reached. The inner material of the prosthesis structure has a glue content of 55%, and the outer material has a glue content of 80%. Cut the carbon fiber or carbon fiber cloth that has reached the designed glue content according to the shape of the mandrel or the prosthesis, and bind the cut carbon fiber or carbon fiber cloth according to the designed layering direction according to the required amount of material, and heat the mold to 400°C. Open the mold, quickly put the bundled composite material into the mold cavity to close the mol...

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Abstract

The invention discloses a full coax femoral head prosthetic appliance and its making process, wherein the prosthetic appliance comprises an inner layer and an outer layer, the inner layer being an uninterrupted carbon fiber reinforced polyetheretherketone composite material layer, the outer layer being a short cut carbon fiber reinforced polyetheretherketone composite material layer, and a core rod die arrangement and a prosthesis die arrangement are utilized to realize thermal compression bonding of the two composite material layers. The invention also discloses the process for making the prosthetic appliance.

Description

technical field [0001] The invention relates to a total hip femoral head prosthesis and a preparation method thereof, in particular to a total hip femoral head prosthesis formed by carbon fiber reinforced polyether ether ketone composite material and a preparation method thereof. Used in the field of biomedical technology. Background technique [0002] The most effective treatment for advanced hip disease is total hip replacement. Its main purpose is to relieve hip pain, maintain joint stability, improve joint function, and adjust the length of both lower limbs. The complexity of joint replacement requires that materials must have good biocompatibility, corrosion resistance, high strength, high toughness, and excellent cyclic impact resistance and wear resistance. Currently commercialized and widely used clinically are limited to total hip femoral head prostheses made of three types of metal materials: stainless steel (iron-based alloy), cobalt-based alloy and titanium-base...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/36A61L27/00
Inventor 孙康乔秀颖方嘉李伟陆皓
Owner SHANGHAI JIAO TONG UNIV
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