Fitting a neural prosthesis using impedance and electrode height
First Claim
Patent Images
1. A method of determining proper placement of a visual neural stimulation electrode array comprising:
- placing a two dimensional electrode array in proximity of a retina;
measuring impedance of at least one electrode in said electrode array;
communicating said impedance to a clinician by audible signal;
determining, by the impedance, the proper placement of the electrode array for optimal stimulation of the perception of vision wherein higher impedance indicates preferable placement; and
attaching said two dimensional electrode array to the retina.
5 Assignments
0 Petitions
Accused Products
Abstract
The invention is a method of automatically adjusting an electrode array to the neural characteristics of an individual subject. The response to electrical neural stimulation varies from subject to subject. Measure of impedance may be used to predict the electrode height from the neural tissue and, thereby, predict the threshold of perception. Alternatively, electrode height may be measured directly to predict the threshold of perception. Also, impedance measurement may be used to quickly identify defective electrodes and proper electrode placement.
-
Citations
6 Claims
-
1. A method of determining proper placement of a visual neural stimulation electrode array comprising:
-
placing a two dimensional electrode array in proximity of a retina; measuring impedance of at least one electrode in said electrode array; communicating said impedance to a clinician by audible signal; determining, by the impedance, the proper placement of the electrode array for optimal stimulation of the perception of vision wherein higher impedance indicates preferable placement; and attaching said two dimensional electrode array to the retina. - View Dependent Claims (2, 3, 4, 5, 6)
-
Specification