Artificial retina

• US 5,865,839 A
• Filed: 05/19/1997
• Issued: 02/02/1999
• Est. Priority Date: 12/30/1996
• Status: Expired due to Term

• Current Assignee: John F. Doorish
• Original Assignee: John F. Doorish
• Inventors: Doorish, John F.
• Primary Examiner(s): Jastrzab, Jeffrey R.
• Application Number:
  US08/858,657
• Time in Patent Office: 624 Days
• Field of Search: 607/53, 607/54, 607/116, 607/141, 623/4, 623/5, 128/898
• US Class Current: 623/6.63
• CPC Class Codes: A61F 9/08 Devices or methods enabling eye-patients to replace direct visual perception by another kind of perception
• CPC Class Codes: A61N 1/36046 of the eye

Abstract

The present invention is an artificial retina system that is sufficiently small so as to be fully implantable in the human eye. The artificial retina system comprises an array of artificial retinas. Each artificial retina comprises a detector element; a fiber optic element for directing incoming visible light of a particular intensity to said detector element, said detector element emitting an output signal as a function of the intensity of the incoming visible light; and a coupler for coupling the output signal of said detector element to the retina.

Claims

1. An artificial retina sized to be implantable in a human eye having a retina, said artificial retina comprising:

a detector element;

a fiber optic element for directing incoming visible light of a particular intensity to said detector element, said detector element emitting an output signal as a function of the intensity of the incoming visible light; and

a coupler for coupling the output signal of said detector element to the retina;

wherein said artificial retina is fully implantable in the eye.

2. The artificial retina of claim 1, wherein said fiber optic element comprises at least one fiber optic tube.

3. The artificial retina of claim 1, wherein said detector element comprises a photodiode, said photodiode producing a current in response to the light directed by said fiber optic element.

4. The artificial retina of claim 1, wherein said detector element comprises an infrared (IR) detector, said IR detector producing a current in response to the light directed by said fiber optic element.

5. The artificial retina of claim 1 further comprising one of a microlens and an artificial lens disposed in front of said fiber optic element to focus incoming visible light onto said fiber optic element.

6. The artificial retina of claim 1 further comprising a plastic housing, wherein said plastic housing substantially encases said fiber optic element, said detector element and said coupler.

7. The artificial retinal of claim 1 further comprising an integrated circuit (IC) coupled to said detector element and said coupler, said IC amplifying the output signal of said detector element and transmitting the amplified output signal to said coupler.

8. The artificial retina of claim 1, wherein said coupler comprises a scanning tunneling microscope (STM) tip.

9. The artificial retina of claim 1, wherein said coupler comprises a metal sheet.

10. The artificial retina of claim 1, wherein said coupler comprises a wire.

11. An artificial retina system sized to be implantable in a human eye having a retina, said artificial retina system comprising:

an array of artificial retinas, conneated together wherein each artificial retina comprises;

a detector element;

a fiber optic element for directing incoming visible light of a particular intensity to said detector element, said detector element emitting an output signal as a function of the intensity of the incoming visible light; and

a coupler for coupling the output signal of said detector element to the retina.

12. The artificial retina system of claim 11, wherein said fiber optic element comprises at least one fiber optic tube.

13. The artificial retina system of claim 12, wherein said fiber optic tube is colored.

14. The artificial retina system of claim 11, wherein said detector element comprises a photodiode, said photodiode producing a current in response to the light directed by said fiber optic element.

15. The artificial retina system of claim 11, wherein said detector element comprises an infrared (IR) detector, said IR detector producing a current in response to the light directed by said fiber optic element.

16. The artificial retina system of claim 11 further comprising a microlens disposed in front of said fiber optic element to focus incoming visible light onto said fiber optic element.

17. The artificial retina system of claim 16 further comprising a color filter disposed in front of said microlens.

18. The artificial retina system of claim 11 further comprising a plastic housing substantially encasing said array of artificial retinas.

19. The artificial retina system of claim 11 further comprising an integrated circuit (IC) coupled to said detector element and said coupler, said IC amplifying the output signal of said detector element and transmitting the amplified output signal to said coupler.

20. The artificial retina system of claim 11, wherein said coupler is a wire.