A - Human Necessities – 61 – N
Patent
A - Human Necessities
61
N
A61N 1/36 (2006.01) A61F 11/00 (2006.01)
Patent
CA 2376877
There is described an electrical tissue stimulating device, such as a cochlear prosthesis, which includes circuitry (47) for monitoring the build-up of undesirable residual voltages between stimulation electrodes. In the event that such a condition is sensed then an overvoltage signal is generated and transmitted to a switch controller (48). In response the switch controller controls electrode switches (42) in order to suppress stimulation of the monitored electrode(s) until the undesirable residual voltage has fallen to an acceptable level. As a result the build-up of undesirable inter- electrode voltages is reduced.
La présente invention concerne un dispositif de stimulation électrique de tissu, tel qu'une prothèse cochléaire, comprenant un circuit (47) destiné à contrôler l'établissement de tensions résiduelles non souhaitées entre des électrodes de stimulation. Dans le cas où une telle condition est rencontrée, un signal de surtension est produit et transmis à une unité de commande de commutation (48). En réponse, cette unité pilote des commutations d'électrodes (42) aux fins d'arrêt de stimulation des électrodes contrôlées jusqu'à ce que la tension résiduelle non souhaitée tombe à un niveau acceptable. Il en résulte une réduction de l'établissement de tension non souhaitée entre électrodes.
Carter Paul Michael
Money David Kerry
Tabor Bruce
Cochlear Limited
R. William Wray & Associates
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