Visual Prosthesis
First Claim
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1. A method for stimulating a subject'"'"'s retina, the method comprising:
- selecting at least a first and a second electrode each configured to apply current to a subject'"'"'s retina;
determining impedance for the at least first electrode and second electrode; and
applying current to the subject'"'"'s retina through the at least first and second electrode, wherein current to be applied by the first electrode and the second electrode is configured to be higher for the first electrode when the first electrode has an impedance lower than a second electrode'"'"'s impedance.
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Abstract
A method for stimulating a subject'"'"'s retina. The method comprising selecting at least a first and a second electrode each configured to apply current to a subject'"'"'s retina, determining impedance for the at least first electrode and second electrode, and applying current to the subject'"'"'s retina through the at least first and second electrode, wherein current to be applied by the first electrode and the second electrode is configured to be higher for the first electrode when the first electrode has an impedance lower than a second electrode'"'"'s impedance.
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Citations
23 Claims
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1. A method for stimulating a subject'"'"'s retina, the method comprising:
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selecting at least a first and a second electrode each configured to apply current to a subject'"'"'s retina; determining impedance for the at least first electrode and second electrode; and applying current to the subject'"'"'s retina through the at least first and second electrode, wherein current to be applied by the first electrode and the second electrode is configured to be higher for the first electrode when the first electrode has an impedance lower than a second electrode'"'"'s impedance. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for implanting electrodes in a subject'"'"'s retina, the method comprising:
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a) temporarily placing electrodes in a subject'"'"'s retina; b) determining impedance of the placed electrodes; and c) repeating features a) and b) until impedance of the electrodes is ideal for permanent implanting of the electrodes. - View Dependent Claims (8, 9, 10, 11)
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12. A method for applying current to a load, the method comprising:
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selecting a first and a second electrode each configured to apply current to a load; determining impedance of the electrodes; and applying current to the load through the first and second electrode, wherein current to be applied by the first electrode and the second electrode is configured to be higher for the first electrode when the first electrode has an impedance lower than a second electrode'"'"'s impedance. - View Dependent Claims (13, 14, 15)
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16. A method for stimulating a subject'"'"'s retina, the method comprising:
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selecting at least a first and a second electrode, each configured to apply current to a subject'"'"'s retina; and applying current to the subject'"'"'s retina through the first and second electrode, wherein current to be applied by the first electrode and the second electrode is configured to be higher for the first electrode when the first electrode is disposed farther from the subject'"'"'s retina than the second electrode. - View Dependent Claims (17, 18)
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19. A method for determining which electrode is to be in contact with a subject'"'"'s retina, the method comprising:
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applying current to a plurality of electrodes implanted in the subject'"'"'s eye; determining impedance of each electrode of the plurality of electrodes; and establishing the electrode with the highest impedance as the electrode in contact with the subject'"'"'s retina. - View Dependent Claims (20, 21, 22, 23)
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Specification