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Implant device and method for manufacture

a manufacturing method and implant technology, applied in the field of joint implants, can solve the problems of loss of bone stock, increased manufacturing costs, and increased manufacturing costs, and achieve the effects of reducing the risk of fracture, reducing the quality of bone stock, and increasing the cost of joint implants

Inactive Publication Date: 2013-09-19
CONFORMIS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional implant manufacturing processes, which may even include manual steps, and which may be satisfactory for less complex shaping, are becoming inadequate.
Furthermore, joint implants, such as a knee implant that includes tibial and femoral components, often require a relatively large cut on, for example, the tibia.
Such cuts are highly invasive, resulting in loss of bone stock, and over time, osteolysis frequently leads to loosening of the prosthesis.
Further, the area where the implant and the bone mate degrades over time, requiring that the prosthesis be replaced.
Since the patient's bone stock is limited, the number of possible replacement surgeries is also limited for joint arthroplasty.

Method used

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  • Implant device and method for manufacture
  • Implant device and method for manufacture

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Embodiment Construction

[0021]The present invention is directed to methods for making joint implants that leverage additive or subtractive manufacturing methods including laser sintering and electron beam melting, and to non-invasive joint implants which may be advantageously made by the methods described herein. Such implants may feature a surface of the implant that is advantageously a mirror image of the joint surface. In another embodiment, non-invasive joint implants that rest on substantially uncut subchondral bone are described. The invention is now described in further detail, below.

[0022]As used herein and in the appended claims, the singular forms “a”, “an”, and “the” include plural references unless the context clearly dictates otherwise. Thus, for example, reference to “a device” includes a plurality of such devices and equivalents thereof known to those skilled in the art, and so forth. Similarly, the terms “a” (or “an”), “one or more” and “at least one” can be used interchangeably herein. Als...

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Abstract

A knee implant includes a femoral component having first and second femoral component surfaces. The first femoral component surface is for securing to a surgically prepared compartment of a distal end of a femur. The second femoral component surface is configured to replicate the femoral condyle. The knee implant further includes a tibial component having first and second tibial component surfaces. The first tibial component surface is for contacting a proximal surface of the tibia that is substantially uncut subchondral bone. At least a portion of the first tibial component surface is a mirror image of the proximal tibial surface. The second tibial component surface articulates with the second femoral component surface.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. application Ser. No. 12 / 031,239 filed Feb. 14, 2008, entitled “Method for Implant Manufacture,” which in turn claims the benefit of priority under 35 U.S.C. 119(e) to copending U.S. Application No. 60 / 889,859, filed on Feb. 14, 2007, entitled “Implant Device and Method for Manufacture.”[0002]U.S. application Ser. No. 12 / 031,239 is also a continuation-in-part of U.S. application Ser. No. 10 / 681,749 filed Oct. 7, 2003, entitled “Minimally Invasive Joint Implant with 3-Dimensional Geometry Matching the Articular Surfaces”, which in turn claims priority to U.S. Application 60 / 416,601 filed Oct. 7, 2002, entitled “Minimally Invasive Joint Implant With 3-Dimensional Geometry Matching the Articular Surfaces,” and U.S. Application 60 / 467,686 filed May 2, 2003, entitled “Joint Implants”.[0003]U.S. application Ser. No. 12 / 031,239 is also a continuation-in-part of U.S. application Ser. No. 10 / 997,407 filed ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G06F17/50
CPCB23P19/04A61F2/38A61F2310/00011A61F2/4202A61F2/3804A61F2310/00239A61F2/4261A61F2310/00131A61F2310/00161A61F2/3859A61F2002/30892A61F2/40A61F2310/00179A61F2002/30968A61F2/389A61F2210/0014A61F2/30756A61F2/30942A61F2002/30092A61F2002/3097A61F2/32A61F2310/00203A61F2002/30957A61F2002/30884A61F2310/00023G06F17/50A61F2/4225A61F2/44A61F2310/00017A61F2/4241A61F2002/30952A61F2310/00167Y10T29/49995A61F2310/00029B33Y80/00G06F30/00
Inventor LANG, PHILIPP
Owner CONFORMIS
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