Retinal prosthesis and method of manufacturing a retinal prosthesis

• US 8,527,057 B2
• Filed: 12/22/2010
• Issued: 09/03/2013
• Est. Priority Date: 04/28/2005
• Status: Active Grant

• Current Assignee: Cortigent Incorporated
• Original Assignee: Second Sight Medical Products, Inc.
• Inventors: Greenberg, Robert J., Ok, Jerry, Neysmith, Jordan, Wilkins, Kevin, Talbot, Neil Hamilton, Chang, Da-Yu
• Primary Examiner(s): Koharski, Christopher D
• Assistant Examiner(s): KIMBALL, JEREMIAH T
• Application Number:
  US12/976,650
• Publication Number:
  US 20110118807A1
• Time in Patent Office: 986 Days
• Field of Search: 607/54
• US Class Current: 607/54
• CPC Class Codes: A61N 1/0543 Retinal electrodes
• CPC Class Codes: A61N 1/36046 of the eye
• CPC Class Codes: A61N 1/375 Constructional arrangements, e.g. casings
• CPC Class Codes: A61N 1/37518 Anchoring of the implants, e.g. fixation
• CPC Class Codes: A61N 1/3758 Packaging of the components within the casing
• CPC Class Codes: A61N 1/3787 from an external energy source
• CPC Class Codes: H01L 2224/16227 the bump connector connecting to a bond pad of the item
• CPC Class Codes: H01L 2224/32225 the item being non-metallic, e.g. insulating substrate with or without metallisation
• CPC Class Codes: H01L 2224/73253 Bump and layer connectors
• CPC Class Codes: H01L 2924/15311 being a ball array, e.g. BGA
• CPC Class Codes: H01L 2924/16251 Connecting to an item not being a semiconductor or solid-state body, e.g. cap-to-substrate
• CPC Class Codes: H01L 2924/19104 on the semiconductor or solid-state device, i.e. passive-on-chip
• CPC Class Codes: H01L 2924/19107 off-chip wires

Abstract

The present invention is an improved package and configuration for an implantable retinal prosthesis. The retinal prosthesis of the present invention includes an electrode array suitable to be mounted in close proximity to a retina, an electronics package and inductive receiving coil mounted next to each other on a strap surrounding the sclera so that the height above the sclera of the prosthesis is minimized.

Claims

1. A retinal prosthesis comprising:

an electrode array suitable to be mounted in close proximity to a retina;

a strap suitable for surrounding the sclera;

a hermetic electronics package encasing a flip-chip circuit mounted to said strap;

an electrical cable coupling said electrode array to said electronics package;

a secondary inductive coil mounted to said strap, coplanar with said electronics package, electrically coupled to said electronics package and powering said flip-chip circuit in said electronics package;

said secondary inductive coil suitable to be mounted on the lateral side of the sclera.

2. The retinal prosthesis according to claim 1, further comprising suture tabs connected to said secondary inductive suitable for attaching said secondary inductive coil to the sclera.

3. The retinal prosthesis according to claim 1, further comprising a suture tab connected to said electronics package suitable for attaching said electronics package to a the sclera.

4. The retinal prosthesis according to claim 1, further comprising a fan tail connected to said secondary inductive coil and to said strap.

5. The retinal prosthesis according to claim 1, further comprising a hook on said prosthesis suitable for engaging a surgical tool.

6. The retinal prosthesis according to claim 1, further comprising a fan tail on said electrode array.

7. The retinal prosthesis according to claim 1, wherein said cable and electrode array comprise metal traces sandwiched between thin polymer films.

8. The retinal prosthesis according to claim 7, wherein said cable is folded to present the same side of said cable to both said electronics package and the retina.

9. The retinal prosthesis according to claim 1, wherein said secondary inductive coil is a wound wire coil.

10. The retinal prosthesis according to claim 1, wherein said secondary inductive coil is oval shaped.