Prosthesis for cemented fixation and method for making the prosthesis

A technology of joint prosthesis and femur, applied in prosthesis, medical science, knee joint, etc., can solve problems such as abnormal trouble of cutting off and difficulty in removing primary implant components

Inactive Publication Date: 2011-05-11
DEPUY PROD INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The fact that the bone also grows into the extension makes it more difficult to remove the primary implant components from the bone
Since not all of these areas are easily accessible without extensive resection of the bone, severing these connections can be extremely cumbersome

Method used

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  • Prosthesis for cemented fixation and method for making the prosthesis
  • Prosthesis for cemented fixation and method for making the prosthesis
  • Prosthesis for cemented fixation and method for making the prosthesis

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Embodiment Construction

[0083] The following U.S. patent application filed concurrently herewith is related to this patent application: "Prosthesis with Modular Extensions" by Anthony D. Zannis and Daren L. Deffenbaugh (DEP6035USCIP1, U.S. Provisional Patent Application No. 61 / 256527 ); "Prosthesis With Cut-Off Pegs And Surgical Method" (DEP6035USCIP3, U.S. Provisional Patent Application No. 61 / 256574), submitted by DarenL.Deffenbaugh and AnthonyD.Zannis; by StephanieM.DeRuntz, DarenL .Deffenbaugh, DerekHengdaLiu, AndrewJamesMartin, JeffreyA.Rybolt, BryanSmith and AnthonyD.Zannis submitted as a provisional patent application "ProsthesisWithSurfacesHavingDifferentTexturesAndMethodOfMakingTheProsthesis" (prosthesis with surfaces having different textures and its preparation method) (DEP6089USCIPNo1, U.S. Provisional Patent Application 61 / 256468); and "ProsthesisWithCompositeComponent" (DEP6035USCIP4, US Provisional Patent Application No. 61 / 256517) filed by Daren L. Deffenbaugh and Thomas E. Wogoman. A...

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Abstract

A joint prosthesis system (10) is suitable for cemented fixation. The system has two metal implant components (12,14) and a bearing (16). One of the metal implant components has an articulation surface (18,20,22) for articulation with the bearing. The other metal implant component has a mounting surface (26) for supporting the bearing. One of the metal implant components includes an extension (30,32,34,36,38,39), such as a stem or pegs, with an exposed outer surface (79). The metal implant component from which the extension extends comprises titanium and the exposed outer surface of the extension comprises a different form of titanium. A method of making the joint prosthesis is also disclosed.

Description

[0001] Cross references to related patent applications [0002] This patent claims priority to the following patent application: U.S. provisional application entitled "PROSTHESISFORCEMENTEDFIXATIONANDMETHODFORMAKINGTHEPROSTHESIS" (Prosthesis for Bone Cement Fixation and Method of Making It), filed October 30, 2009, by Daren L. Deffenbaugh and Anthony D. Zannis Patent Application No. 61 / 256546 (Attorney Docket No. DEP6035USPSP1). This patent application is also a continuation-in-part of the following U.S. patent application, the disclosure of which is incorporated herein by reference in its entirety: Filed September 25, 2007, entitled "Fixed-Bearing Knee Prosthesis" ) and U.S. Patent Publication No. US20090082873A1 (U.S. Patent Application No. 11 / 860,833) and filed Nov. 17, 2009, entitled "Fixed-Bearing Knee Prosthesis Having Interchangeable Components" (Fixed-Bearing Knee Prosthesis Having Interchangeable Components) US Patent Publication No. 20100063594A1 (US Patent Applicatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61F2/02A61F2/30A61L27/06A61F2/42A61F2/38
CPCA61F2/30734A61F2/38A61F2/4202A61F2002/30604A61F2002/30878A61F2002/3092A61F2002/30968A61F2310/00023
Inventor D·L·德芬鲍夫A·D·赞尼斯
Owner DEPUY PROD INC
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