ELECTRODE SENSOR ASSEMBLY FOR ELECTRORETINOGRAPHY AND PATTERN ELECTRORETINOGRAPHY

• US 20140142409A1
• Filed: 11/16/2012
• Published: 05/22/2014
• Est. Priority Date: 11/16/2012
• Status: Active Grant

• Current Assignee: Diopsys, Inc,
• Original Assignee: Diopsys, Inc,
• Inventors: Garcia, Alberto Gonzalez, Lepone, Donald E.
• Granted Patent: US 9,026,189 B2
• Time in Patent Office: Days
• US Class Current: 600/383
• CPC Class Codes: A61B 2562/0215 Silver or silver chloride containing
• CPC Class Codes: A61B 5/398 Electrooculography [EOG], e.g. detecting nystagmus; Electroretinography [ERG]

Abstract

A multilayer electrode sensor assembly for electroretinography and pattern electroretinography formed as a thin strip to fit under a lower eyelid and contain an electrode in line with the pupil of an eye with signals detected carried through an integrally formed thin conductive strip to a terminal to be connected to an electrical conductor for carrying such signals to an analyzer.

Claims

1. An electrode sensor for detecting signals emanating from a retina of the eye of a patient, said signals being generated upon stimulation of the retina,

said electrode sensor comprising a multilayer assembly comprising a base layer, an electrode deposited on said base layer and a conductor deposited on said base layer connected to said electrode,

said sensor comprising an elongated section to be secured to skin below a lower eyelid of a patient and a second section holding said terminal,

said conductor being located in an intermediate section of said sensor between said first and second sections, said conductor integrally formed with said electrode,

said multilayer assembly comprising an adhesive layer to attach said electrode sensor to said skin below said lower eyelid.

2. An electrode sensor according to claim 1, further comprising a dielectric layer formed on top of said electrode and conductor to minimize noise in said conductor.

3. An electrode sensor according to claim 1, wherein said multilayer assembly comprises a conductive gel deposited on top of said electrode.

4. An electrode sensor according to claim 1, wherein said adhesive layer comprises adhesive material located adjacent said electrode in said first section.

5. An electrode sensor according to claim 4, wherein said adhesive material is located on both sides of said electrode in said first section.

6. An electrode sensor according to claim 1, wherein said electrode sensor has an elongated and thin silhouette.

7. An electrode sensor according to claim 1, wherein said terminal is fixedly attached to said conductor and said electrode sensor.

8. An electrode sensor according to claim 1, wherein said multilayer assembly comprises a medical tape liner on top of said adhesive layer.

9. An electrode sensor according to claim 1, wherein at least a portion of said intermediate section is smaller in height than either said first or second sections.

10. An electrode sensor according to claim 1, wherein the height of said electrode is substantially equal to the height of said first section.

11. An electrode sensor according to claim 1, wherein said base layer comprises a thin plastic material.

12. An electrode sensor according to claim 1, wherein said electrode sensor is thin and flexible.

13. An electrode sensor according to claim 1, wherein said electrode sensor comprises visible locating means to locate said electrode substantially to be in line with the pupil of the eye.

14. An electrode sensor according to claim 13, wherein said visible locating means is visible to the naked eye.

15. An electrode sensor according to claim 1, wherein said electrode and said conductor comprises a conductive ink material.

16. An electrode sensor according to claim 15, further comprising a dielectric ink material deposited on top of said electrode and conductor.

17. An electrode sensor according to claim 1, wherein said conductor is connected to a terminal in said second section.

18. An electrode sensor according to claim 1, wherein visual patterns are presented to the eyes of the patient to generate said signals.

20. An electrode sensor according to claim 1, wherein only said first section comprises adhesive material.

21. An electrode sensor according to claim 1, wherein said electrode and said conductor are integrally formed and comprise the same layer of said multilayer assembly.