Method of making an ocular implant

• US 20060271184A1
• Filed: 05/03/2006
• Published: 11/30/2006
• Est. Priority Date: 12/01/2004
• Status: Abandoned Application

• Current Assignee: Healthcare Royalty Partners II LP (Toronto-Dominion Bank)
• Original Assignee: Healthcare Royalty Partners II LP (Toronto-Dominion Bank)
• Inventors: Silvestrini, Thomas A.
• Application Number:
  US11/417,656
• Publication Number:
  US 20060271184A1
• Time in Patent Office: Days
• US Class Current: 623/5.160
• CPC Class Codes: A61F 2/0059 Cosmetic or alloplastic implants A61F2/10 - A61F2/16, A61F2/28 take precedence
• CPC Class Codes: A61F 2/14 Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
• CPC Class Codes: A61F 2/15 Implant having one or more holes, e.g. for nutrient transport, for facilitating handling
• CPC Class Codes: A61F 2240/001 Designing or manufacturing processes
• CPC Class Codes: A61F 2250/0014 having different values of a given property or geometrical feature, e.g. mechanical property or material property, at different locations within the same prosthesis
• CPC Class Codes: C23C 14/0005 Separation of the coating from the substrate
• CPC Class Codes: C23C 16/01 on temporary substrates, e.g. substrates subsequently removed by etching

Abstract

A method of making a mask configured to improve the depth of focus of an eye of a patient is provided. A substrate with a mask forming feature is provided. The mask forming feature comprises a forming surface that extends from an outer periphery. The forming surface is centered on a central axis of the mask forming feature. A release layer is formed on the forming surface. A mask layer is formed such that the release layer is between the mask layer and the substrate. The mask layer is formed of a biocompatible metal. A surface of the mask layer opposite the release layer is configured to not corrode. The mask layer is separated from the substrate.

Claims

1. A mask configured to improve the depth of focus in an eye of a patient comprising:

a posterior layer formed of a biocompatible metal; and

a cosmetic layer.

2. The mask of claim 1, wherein the cosmetic layer is a non-reflective layer

3. The mask of claim 2, wherein the cosmetic layer darkens the appearance of the mask.

4. The mask of claim 1, wherein the biocompatible metal is a noble metal and the cosmetic layer comprises a carbon layer.

5. The mask of claim 1, wherein the biocompatible metal comprises a titanium alloy.

6. The mask of claim 5, wherein the titanium alloy exhibits super-elastic characteristics.

7. The mask of claim 5, wherein the titanium alloy is nitinol.

8. The mask of claim 5, wherein the titanium alloy comprises nickel and titanium.

9. The mask of claim 5, wherein the posterior layer is a first layer, and the cosmetic layer is formed of a material that does not react chemically with the titanium alloy.

10. The mask of claim 9, wherein the cosmetic layer comprises titanium oxide.

11. The mask of claim 9, wherein the cosmetic layer comprises silicon carbide.

12. The mask of claim 1, wherein the posterior layer is formed of a biocompatible metal that does not corrode when implanted in the body.

13. The mask of claim 1, wherein the posterior layer comprises gold.

14. The mask of claim 1, wherein the posterior layer comprises palladium.

15. The mask of claim 1, wherein the posterior layer comprises platinum.

16. The mask of claim 1, wherein the posterior layer tantalum.

17. The mask of claim 1, wherein the posterior layer comprises titanium.