SILICONE IMPLANT WITH IMPRINTED TEXTURE

• US 20110276134A1
• Filed: 05/10/2011
• Published: 11/10/2011
• Est. Priority Date: 05/10/2010
• Status: Abandoned Application

• Current Assignee: Allergan, Inc. (Canada) (Abbvie Incorporated)
• Original Assignee: Allergan, Inc. (Canada) (Abbvie Incorporated)
• Inventors: Liu, Futian, Manesis, Nicholas J.
• Application Number:
  US13/104,820
• Publication Number:
  US 20110276134A1
• Time in Patent Office: Days
• US Class Current: 623/8
• CPC Class Codes: A61F 2/12 Mammary prostheses and implants
• CPC Class Codes: C08J 2383/04 Polysiloxanes
• CPC Class Codes: C08J 5/046 with synthetic macromolecular fibrous material

Abstract

A procedure for manufacturing an implant having a textured silicone surface is disclosed. An example procedure includes forming a component having a silicone surface; pressing a plurality of polymer fibers at least partially into the silicone surface, before the silicone has completely cured; allowing the silicone to at least partially cure with the polymer fibers in the silicone surface; and after the silicone is at least partially cured, removing the polymer fibers from the silicone surface.

Claims

1. A method of manufacturing an implant having a textured surface, the method comprising the steps of:

forming a component having a silicone surface;

pressing a plurality of polymer fibers at least partially into the silicone surface, before the silicone has completely cured;

at least partially curing the silicone with the polymer fibers in the silicone surface; and

after the silicone is at least partially cured, removing the polymer fibers from the silicone surface.

2. The method of claim 1, wherein the fibers are in the form of a mesh.

3. The method of claim 1, wherein the fibers are in the form of a felt.

4. The method of claim 1 wherein the at least partially curing step is accomplished by increasing the temperature.

6. The method of claim 1, wherein the fibers are in the form of a plurality of layers of mesh.

7. The method of claim 1, wherein the fibers are comprised of at least one of Vicryl 910, poly(L-lactic acid-co-trimethylcarbonate), polycaprolactone, poly(L-lactic acid), poly(methyl methacrylate) and poly(lactic-co-glycolic acid).

8. The method of claim 1, wherein removing the fibers further comprises dissolving the fibers.

9. The method of claim 1, wherein the fibers comprise a material that is not soluble in at least one of xylene and toluene.

10. The method of claim 9, wherein the fibers comprise a material that is soluble in an organic solvent selected from methylene chloride, chloroform, acetone, tetrahydrofuran and combinations thereof.

11. The method of claim 1, wherein removing the polymer fibers comprises removing the polymer fibers by hydrolytic degradation.

12. The method of claim 1, wherein the polymer fibers have an average thickness between about 100 μ

m and 1000 μ

m.

13. The method of claim 2, wherein the mesh includes a plurality of eyes having an average size between about 100 μ

m×

100 μ

m to about 2000 μ

m×

2000 μ

m.

14. An implant produced by a method of claim 1.

15. The implant of claim 14 comprising a breast implant.

16. A breast implant, comprising:

a silicone shell having an inner surface, defining a cavity configured to be filled with a filler material, and an outer surface, the outer surface having a texture comprised of a plurality of protrusions and a plurality of interconnected recessed areas, the shell made by the steps of

forming a component having a silicone surface;

pressing a plurality of polymer fibers at least partially into the silicone surface, before the silicone has completely cured;

at least partially curing the silicone with the polymer fibers in the silicone surface; and

after the silicone is at least partially cured, removing the polymer fibers from the silicone surface.

17. The implant of claim 16, wherein the polymer fibers are in the form of a mesh.

18. The implant of claim 16, wherein the average vertical distance between a high point of a protrusion, in the plurality of protrusions, and a low point of recessed area, in the plurality of recessed areas, is between about 100 μ

m and about 1000 μ

m.

19. An implant comprising:

a silicone outer surface having a plurality of projections and a plurality of interconnected recessed areas, the average vertical distance between a high point of a protrusion, in the plurality of protrusions, and a low point of a recessed area, in the plurality of recessed areas, being between about 100 μ

m and about 1000 μ

m and including channels with an average diameter between about 100 μ

m and about 500 μ

m.