| US 7,571,005 B1 | ||
| Adaptive place-pitch ranking procedure for optimizing performance of a multi-channel neural stimulator | ||
| Philip A Segel, Englewood, Colo. (US); Tracey L. Kruger, Chatsworth, Calif. (US); and Leonid M Litvak, Los Angeles, Calif. (US) | ||
| Assigned to Advanced Bionics, LLC, Valencia, Calif. (US) | ||
| Filed on Sep. 01, 2006, as Appl. No. 11/469,820. | ||
| Application 11/469820 is a continuation in part of application No. 10/819611, filed on Apr. 07, 2004, granted, now 7,103,417. | ||
| Claims priority of provisional application 60/464222, filed on Apr. 18, 2003. | ||
| Int. Cl. A61N 1/36 (2006.01); A61F 11/04 (2006.01); A61F 11/00 (2006.01) | ||
| U.S. Cl. 607—57 [607/55; 607/56; 607/137; 600/559] | 6 Claims |
| 1. A method for measuring the spread of perception confusion between stimulus channels of a neural stimulation system comprising:
coarsely determining the spread of perception confusion using physical stimulus channels; and
finely determining the spread of perception confusion using at least one virtual stimulus channel;
wherein coarsely determining the spread of perception confusion using physical stimulus channels comprises
(a) sequentially applying monopolar stimulation pulses in a first order to a selected spatially-defined physical electrode
pair representing adjacent stimulus channels;
(b) sequentially applying monopolar stimulation pulses in a second order to the selected spatially-defined physical electrode
pair;
(c) ranking perceived sounds resulting from the stimulation pulses applied in the first order and the second order;
(d) determining whether the perceived sounds are correct, and if so, ceasing further testing involving the selected spatially-defined
physical electrode pair, and
(e) if the perceived sounds are not correct, identifying a state of perceived confusion for the spatially-defined electrode
pair, defining a new spatially-defined physical electrode pair representing stimulus channels that are one stimulus channel
farther apart than the previously defined physical electrode pair, and
(f) repeating steps (a)-(e) as many times as necessary to determine the spread of confusion as measured in terms of a physical
separation between stimulus channels.
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