METHOD FOR TEXTURING THE SURFACE OF A SYNTHETIC IMPLANT

• US 20090198332A1
• Filed: 02/05/2008
• Published: 08/06/2009
• Est. Priority Date: 02/05/2008
• Status: Abandoned Application

• Current Assignee: Hilton Becker
• Original Assignee: Hilton Becker
• Inventors: Becker, Hilton
• Application Number:
  US12/026,032
• Publication Number:
  US 20090198332A1
• Time in Patent Office: Days
• US Class Current: 623/8
• CPC Class Codes: A61F 2/0077 Special surfaces of prostheses, e.g. for improving ingrowth A61F2/30767 takes precedence
• CPC Class Codes: A61F 2/12 Mammary prostheses and implants
• CPC Class Codes: A61F 2002/0086 for preferentially controlling or promoting the growth of specific types of cells or tissues of bone tissue onto implantable joints A61F2002/3093
• CPC Class Codes: A61L 27/34 Macromolecular materials
• CPC Class Codes: C08L 5/08 Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof

Abstract

A method for texturing the surface of a breast implant includes the step of partially impregnating a silicone outer surface of the implant with particles of a biologically active material such as acellular dermis of human or animal origin impregnated with hyaluronic acid. The biologically active material promotes tissue ingrowth into a plurality of cavities filled with a biologically active material.

Claims

1. A method for texturing the surface of a synthetic implant comprising the steps of:

providing a shaped mandrel and a dispersion of bio-compatible non-absorbable elsatomer;

repeatedly dipping the mandrel into the dispersion of bio-compatible non-absorbable elastomer and curing the bio-compatible non-absorbable elastomer to thereby form an elastomer shell;

providing a mass of non-absorbable or partially non-absorbable tissue growth enhancing particles and forming an outer layer of bio-compatible non-absorbable elastomer on said elastomer shell;

partially embedding the non-absorbable or partially non-absorbable tissue growth enhancing particles in said outer layer with a portion of said particles forming irregular filled chambers within said outer layer and a second portion of the particles extending outwardly beyond a surface of the shell; and

curing the outer layer whereby the partially embedded particles promote the growth of human tissue into the chambers when implanted in a human body.

2. A method for texturing the surface of a synthetic implant according to claim 1 wherein said implant is a breast implant for breast augmentation and wherein said dispersion of bio-compatible non-absorbable elastomer is silicone.

3. A method for texturing the surface of a synthetic implant according to claim 2 in which the mass of non-absorbable tissue growth enhancing particles are selected from the group consisting of collagen, cross-linked collagen, collagen precursors, collagen support material, hyaluronic acid and cross-linked hyaluronic acid.

4. A method for texturing the surface of a synthetic implant according to claim 3 in which said mass of non-absorbable tissue growth enhancing particles include hyaluronic acid granules for forming a gel when implanted in the human body.

5. A method for texturing the surface of a synthetic implant according to claim 4 in which said mass of non-absorbable tissue growth enhancing particles includes collagen.

6. A method for texturing the surface of a synthetic implant according to claim 5 in which said mass of non-absorbable or partially non-absorbable tissue growth enhancing particles include sponge form collagen having a plurality of holes therein and wherein said holes are filled with or partially filled with hyaluronic acid.

7. A implantable breast prosthesis with a textured surface for breast augmentation, said prosthesis comprising:

a silicone elastomer shell including an outer layer of silicone elastomer, a hollow core and silicone or saline fluid dispersed within said hollow core; and

said outer layer including a plurality of irregularly shaped non-absorbable tissue growth enhancing particles partially embedded in said outer layer with portions of said particles forming an irregular shaped chamber in said outer layer with said chamber filled by said particles and a second portion of said particles extending outwardly from said outer layer so that tissue growth is enhanced when said implant is implanted in a human body.

8. A implantable breast prosthesis according to claim 7 wherein said plurality of non-absorbable tissue growth enhancing particles are selected from the group consisting of collagen, collagen precursors, collagen support material, hyaluronic acid granules and mixtures thereof.

9. A implantable breast prosthesis with a textured surface for breast augmentation according to claim 8 in which said non-absorbable tissue growth enhancing particles include hyaluronic acid granules for forming a gel when implanted in the human body.

10. A implantable breast prosthesis with a textured surface for breast augmentation according to claim 8 in which said non-absorbable tissue growth enhancing particles include hyaluronic acid and collagen.

11. A method for augmentation of a human breast comprising the steps of providing a breast implant having a hollow core filled with silicone or saline and an outer layer of silicone elastomer surrounding said hollow core, and a mass of biologically active non-absorbable or partially non-absorbable tissue growth enhancing particles;

forming a plurality of hollowed out spaces filled with portions of the biologically active non-absorbable or partially non-absorbable tissue growth enhancing particles with portions of the biologically active non-absorbable or partially non-absorbable tissue growth enhancing particles extending outwardly from the outer layer to thereby form a breast implant with a textured tissue growth enhancing surface;

inserting the implant with a textured tissue growth enhancing surface behind a patients breast to thereby promote the patient'"'"'s tissue and blood vessels to grow into the hollow spaces filled with biologically active non-absorbable or partially non-absorbable tissue growth enhancing particles.

12. An implantable prosthesis for breast augmentation, said prosthesis comprising:

a closed envelope including an outer layer of silicone elastomer, a hollow core and a silicone or saline fluid dispersed within said hollow core;

a dermal cover of a biologically active absorbable or partially non-absorbable tissue growth promoting material covering a portion of said envelope so that a patient'"'"'s tissue and blood vessels grow into said cover for reducing capsular contraction and rotation of the implant.

13. An implantable prosthesis for breast augmentation according to claim 12 in which said cover is a mesh cover selected from the group consisting of collagen, collagen precursors, collagen support material, hyaluronic acid granules and mixtures thereof.

14. An implantable prosthesis for breast augmentation according to claim 13 in which said cover is in the form of a pouch and in which said closed envelope is placed within said pouch.

15. An implantable prosthesis for breast augmentation according to claim 13 in which said mesh cover is partially embedded in said outer layer of silicone elastomer.

16. An implantable prosthesis according to claim 13 in which said mesh cover is made of collagen.

17. An implantable prosthesis according to claim 13 in which said cover includes hyaluronic acid granules crystals.

18. An implantable prosthesis according to claim 13 in which said cover material include a mixture of sponge form collagen and hyaluronic acid.

19. A method for promoting the ingrowth of human tissue and blood vessels into a silicone breast implant comprising the steps of:

forming a silicone breast implant having an outer layer of silicone and a plurality of irregular shaped pores in the outer layer;

filling the pores in the outer layer with a non-absorbable or partially non-absorbable tissue growth promoting material; and

implanting the implant into a human breast.