MATERIAL WITH A REPETITIVE PATTERN OF MICRO-FEATURES FOR APPLICATION IN A LIVING ORGANISM AND METHOD OF FABRICATION

• US 20110183292A1
• Filed: 03/30/2011
• Published: 07/28/2011
• Est. Priority Date: 08/03/2007
• Status: Abandoned Application

• Current Assignee: Claus Daniel, Narendra B. Dahotre
• Original Assignee: Claus Daniel, Narendra B. Dahotre
• Inventors: Daniel, Claus, Dahotre, Narendra B.
• Application Number:
  US13/075,976
• Publication Number:
  US 20110183292A1
• Time in Patent Office: Days
• US Class Current: 433/174
• CPC Class Codes: A61C 2008/0046 Textured surface, e.g. roughness, microstructure A61C8/0013 takes precedence
• CPC Class Codes: A61F 2002/30838 Microstructures
• CPC Class Codes: A61L 2400/18 Modification of implant surfaces in order to improve biocompatibility, cell growth, fixation of biomolecules, e.g. plasma treatment
• CPC Class Codes: A61L 27/50 Materials characterised by their function or physical properties , e.g. injectable or lubricating compositions, shape-memory materials, surface modified materials

Abstract

An assembly configured for implantation in a living organism is provided. In some embodiments, the material includes a mechanical surface that has long range ordered micro-features. A repetitive pattern of hierarchical micro-features is incorporated in some embodiments, and in some embodiments the micro-features are composite in nature, and may include nano-structures. In one embodiment an assembly has a first article has a mechanical surface configured to be disposed in contact with a material that is not live biological tissue and a second article comprising a bio-interfacial surface configured to be disposed in contact with live biological tissue. Some embodiments include a screw or a post.

Claims

1. An assembly for implantation in a living organism comprising:

a first article having a mechanical surface configured to be disposed in contact with a material that is not live biological tissue, wherein the mechanical surface has a region of long-range ordered micro-features;

a second article comprising a bio-interfacial surface configured to be disposed in contact with live biological tissue; and

adhesive that bonds the region of long-range ordered micro-features of the first article to the second article.

2. An assembly for implantation in a living organism comprising:

a first article having a mechanical surface configured to be disposed in contact with a material that is not live biological tissue, wherein the mechanical surface has a region of long-range ordered micro-features;

a screw or post; and

adhesive that bonds the region of long-range ordered micro-features of the first article to the screw or post.

3. The assembly of claim 2 wherein the assembly further comprises a bio-interfacial surface configured to be disposed in contact with live biological tissue.

4. The assembly of claim 2 wherein the screw or post comprises a bio-interfacial surface configured to be disposed in contact with live biological tissue.