SOFT FILLED PROSTHESIS SHELL WITH DISCRETE FIXATION SURFACES

• US 20140243973A1
• Filed: 05/08/2014
• Published: 08/28/2014
• Est. Priority Date: 08/13/2008
• Status: Active Grant

• Current Assignee: Allergan, Inc. (Canada) (Abbvie Incorporated)
• Original Assignee: Allergan, Inc. (Canada) (Abbvie Incorporated)
• Inventors: Van Epps, Dennis E., Powell, Thomas E.
• Granted Patent: US 9,393,106 B2
• Time in Patent Office: Days
• US Class Current: 623/8
• CPC Class Codes: A61F 2/12 Mammary prostheses and implants
• CPC Class Codes: A61F 2002/0081 directly machined on the prosthetic surface, e.g. holes, grooves A61F2/30771 takes precedence
• CPC Class Codes: A61F 2002/30322 differing in surface structures
• CPC Class Codes: A61F 2250/0025 differing in roughness
• CPC Class Codes: A61F 2250/0026 differing in surface structures
• CPC Class Codes: A61F 2250/0051 differing in tissue ingrowth capacity, e.g. made from both ingrowth-promoting and ingrowth-preventing parts
• CPC Class Codes: B29C 41/14 Dipping a core B29C41/10 takes precedence
• CPC Class Codes: B29K 2995/0072 Roughness, e.g. anti-slip

Abstract

A soft prosthetic implant shell, such as a silicone breast implant shell, that has discrete fixation surfaces thereon for tissue adhesion. The fixation surfaces may be provided on the posterior face of the shell, as well as either on the periphery or at discrete areas on the anterior face. Band-shaped fixation surfaces may be provided on the anterior face of the shell to generally match the angle of pectoralis major or pectoralis minor muscle groups. The fixation surfaces may be roughened areas of the shell, or may be separate elements adhered to the shell.

Claims

1. A breast prosthesis for implantation in a human being, the prosthesis comprising:

an implantable member comprising an elastomeric shell including an exterior surface defined by an anterior face and a posterior face; and

a fixation region defined by a texture on the anterior face of the shell, the texture being different from a balance of the exterior surface of the shell, the fixation region comprising a plurality of fixation regions in a radiating configuration;

the prosthesis being structured such that when implanted adjacent a muscle group in a human being, the fixation region can be generally aligned with an alignment of said muscle group.

2. The prosthesis of claim 1 wherein the fixation region has a first texture and said balance has a second texture different from the first texture.

3. The prosthesis of claim 1 configured for implantation in a breast of a human being and wherein the fixation region is positioned and configured to generally align with a pectoral muscle group when the prosthesis is so implanted in the breast of the human being.

4. The prosthesis of claim 1 configured for placement in a breast of a human being and wherein the fixation region is positioned to generally align with at least one of a pectoralis major muscle group and a pectoralis minor muscle group when the prosthesis is so implanted in the breast of the human being.

5. The prosthesis of claim 1 wherein the fixation region extends substantially entirely across said anterior face.

6. The prosthesis of claim 1 wherein each of the plurality of fixation regions region has a substantially constant width of between about 2 mm and about 15 mm.

7. A mammary prosthesis comprising:

a implantable member comprising a silicone elastomeric shell including an exterior surface defined by an anterior face, a posterior face and a peripheral region between the anterior face and the posterior face, said exterior surface comprising at least one generally elongated fixation region defined by a texture on the exterior surface of the shell, which is different from a balance of the exterior surface of the shell, the fixation region extending along the peripheral region and across at least one of the posterior face and the anterior face;

the at least one generally elongated fixation region being configured such that when the prosthesis is implanted in a breast of a human being, the generally elongated fixation region generally aligns with an alignment of at least one of a pectoralis major muscle group and a pectoralis minor muscle group.

8. The prosthesis of claim 7 wherein the at least one generally elongated fixation region includes a plurality of generally elongated regions forming a substantially radiating configuration.

9. The prosthesis of claim 7 wherein the balance of the exterior surface is substantially smooth.

10. The prosthesis of claim 7 wherein the balance of the exterior surface is a relatively less textured surface than the fixation region texture.

11. The prosthesis of claim 7 wherein the balance of the exterior surface is a matte finish surface.

12. A breast prosthesis for implantation in a human being, the prosthesis comprising:

an implantable member comprising an elastomeric shell including an exterior surface defined by an anterior face and a posterior face;

a fixation region defined by a first texture on the anterior face of the shell;

a second texture on the posterior surface of the shell, the second texture being a less textured surface than the first texture.

13. The prosthesis of claim 12 wherein the second texture is a matte finish surface.

14. A breast prosthesis for implantation in a human being, the prosthesis comprising:

an implantable member comprising an elastomeric shell including an exterior surface defined by an anterior face and a posterior face; and

a fixation region defined by a texture on the anterior face of the shell and having a substantially constant width of between about 2 mm and about 15 mm, the texture being different from a balance of the exterior surface of the shell;

the prosthesis being structured such that when implanted adjacent a muscle group in a human being, the fixation region can be generally aligned with an alignment of said muscle group.

15. A breast prosthesis for implantation in a human being, the prosthesis comprising:

an implantable member comprising an elastomeric shell including an exterior surface defined by an anterior face and a posterior face; and

a fixation region defined by a texture on the anterior face of the shell, the texture being different from a balance of the exterior surface of the shell, and the balance of the exterior surface being a matte finish and being relatively less textured than the fixation region texture;

the prosthesis being structured such that when implanted adjacent a muscle group in a human being, the fixation region can be generally aligned with an alignment of said muscle group.