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Prostheses with surfaces with different textures

A technology of knee joint prosthesis and main body, applied in the direction of prosthesis, joint implant, ankle joint, etc., can solve the problems of difficulty in removing the initial implant components, cutting off problems, etc.

Active Publication Date: 2016-08-31
DEPUY SYNTHES PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The fact that bone also grows into the extension makes it difficult to remove the primary implant component from the bone
Severing these connections can be problematic as not all of these areas are easily accessible without resecting a large amount of bone

Method used

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  • Prostheses with surfaces with different textures
  • Prostheses with surfaces with different textures
  • Prostheses with surfaces with different textures

Examples

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Embodiment Construction

[0100] The following U.S. patent applications filed concurrently herewith are related to this patent application: "Prosthesis with Modular Extensions" (DEP6035USCIP1), filed by Anthony D. Zannis and Daren L. Deffenbaugh; Prosthesis For Cemented Fixation And Method Of Making The Prosthesis" (DEP6035USCIP2); "Prosthesis With Cut-Off Pegs And Surgical Method" (DEP6035USCIP3), submitted by Daren L. Deffenbaugh and Anthony D. Zannis; and by Daren L. Deffenbaugh and Thomas "Prosthesis With Composite Component" by E. Wogoman (DEP6035USCIP4). All of these patent applications are incorporated herein by reference in their entirety.

[0101] While the concepts of the present disclosure are susceptible to various modifications and alternative forms, specific exemplary embodiments of the present invention have been shown by way of example in the drawings and will be described in detail herein. It should be understood, however, that there is no intent to limit inventive concepts to the par...

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Abstract

The invention discloses a joint prosthesis system (10) suitable for bone cement fixation. The system has two metallic implant components (12, 14) and a support (16). One of the metallic implant components has an articulating surface (18, 20) for articulating the bearing. The other metallic implant component has a mounting surface (26) for supporting the support. One of the metal implant components includes a solid metal portion (80, 80A) and a porous metal portion (82, 82A). The porous metal part has a surface with different characteristics, such as roughness, to improve bone fixation, ease of removal of the implant component in revision surgery, reduce soft tissue inflammation, improve the solid The strength of the sintered bond between the metal portion and the porous metal portion either reduces or eliminates the possibility of blood entering the joint space through the porous metal portion. The invention also discloses a method for preparing the joint prosthesis. The invention is also applicable to discrete porous metal implant components, such as spacers.

Description

[0001] Related Patent Applications [0002] This patent application is a continuation-in-part of the following U.S. patent application, the disclosure of which is incorporated herein by reference in its entirety: U.S. Patent Application Serial No. 12 / 470,397 (Attorney Docket No. DEP6089USNP), which claims priority to U.S. Provisional Patent Application No. 61 / 256,468, filed October 30, 2009, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates generally to implantable orthopedic prostheses, and more particularly to implantable prostheses having bearing assemblies and other assemblies supporting the bearing assemblies. Background technique [0004] During the patient's lifetime, joint replacement surgery may be required on the patient due to reasons such as disease or trauma. Joint replacement surgery may involve the use of one or more internal prostheses implanted in the patient's bones. In knee replacement surg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/30A61F2/38
CPCA61F2/38A61F2/4202A61F2002/30604A61F2002/30878A61F2002/3092A61F2002/30968A61F2310/00023A61L27/04A61L27/06A61L27/50A61L27/56A61L2400/18B22F3/1121B22F3/1146B22F7/006C22C14/00C22C19/07C22C27/02A61F2/30734B22F1/09A61F2/389A61F2002/30011B22F3/1125B22F3/1134B22F3/24B22F2003/247B22F2301/205B22F2998/10
Inventor S.M.德伦茨D.L.德芬鲍夫H.D.刘A.J.马丁J.A.里博尔特B.J.史密斯A.D.赞尼斯
Owner DEPUY SYNTHES PROD INC
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