Method for producing undercut micro recesses in a surface, a surgical implant made thereby, and method for fixing an implant to bone

• US 6,599,322 B1
• Filed: 10/12/2001
• Issued: 07/29/2003
• Est. Priority Date: 01/25/2001
• Status: Expired due to Term

• Current Assignee: Tecomet, Inc.
• Original Assignee: Tecomet, Inc.
• Inventors: Rolfe, Jonathan L., Buturlia, Joseph, Amrich, Mark P., Lynch, Robert F.
• Primary Examiner(s): McDermott, Corrine
• Assistant Examiner(s): MILLER, CHERYL L
• Application Number:
  US09/976,722
• Time in Patent Office: 655 Days
• Field of Search: 623/1.39, 623/1.4, 623/20.17, 623/23.24, 623/23.29, 623/23.3, 623/23.31, 623/23.5, 623/23.55, 623/23.74, 623/23.76
• US Class Current: 623/23.5
• CPC Class Codes: A61C 13/0018 using laser
• CPC Class Codes: A61C 2008/0046 Textured surface, e.g. roughness, microstructure A61C8/0013 takes precedence
• CPC Class Codes: A61F 2/2803 for mandibular reconstruction temporo-mandibular joints A61F2/3099; bone plates for the jaw A61B17/8071
• CPC Class Codes: A61F 2/30767 Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
• CPC Class Codes: A61F 2/30771 applied in original prostheses, e.g. holes or grooves
• CPC Class Codes: A61F 2/32 for the hip
• CPC Class Codes: A61F 2/3859 Femoral components
• CPC Class Codes: A61F 2002/30253 ellipsoidal or ovoid
• CPC Class Codes: A61F 2002/30925 etched
• CPC Class Codes: A61F 2002/30952 using CAD-CAM techniques or NC-techniques
• CPC Class Codes: A61F 2002/3097 using laser
• CPC Class Codes: A61F 2230/0076 ellipsoidal or ovoid
• CPC Class Codes: A61F 2310/00017 Iron- or Fe-based alloys, e.g. stainless steel
• CPC Class Codes: A61F 2310/00023 Titanium or titanium-based alloys, e.g. Ti-Ni alloys
• CPC Class Codes: A61F 2310/00029 Cobalt-based alloys, e.g. Co-Cr alloys or Vitallium
• CPC Class Codes: A61F 2310/00089 Zirconium or Zr-based alloys
• CPC Class Codes: A61F 2310/00131 Tantalum or Ta-based alloys
• CPC Class Codes: A61F 2310/00179 Ceramics or ceramic-like structures
• CPC Class Codes: A61F 2310/00269 based on metal carbides
• CPC Class Codes: A61F 2310/00329 Glasses, e.g. bioglass
• CPC Class Codes: C23F 1/02 : Local etching

Abstract

A surgical implant having a datum surface for engaging tissue. Embodiments of the surgical implant include a recess in an original datum surface having a sharp undercut ovoid configuration and a multiplicity of recesses that are interconnected.

Claims

1. A surgical implant comprising:

a base having an integral datum surface for engaging tissue; and

a multiplicity of interconnected recesses in the datum surface, the recesses comprising a sharp undercut ovoid pattern.

2. The implant of claim 1, wherein the datum surface is an original datum surface.

3. The implant of claim 1, wherein the multiplicity of interconnected recesses form a complex network structure.

4. The implant of claim 1, wherein the sharp undercut ovoid pattern is adapted to shave the tissue.

5. The implant of claim 1, further comprising a base material, the sharp undercut ovoid pattern being integral with the base material.

6. The implant of claim 1, wherein the undercut ovoid pattern is repeatable from implant to implant.