A - Human Necessities – 61 – N
Patent
A - Human Necessities
61
N
A61N 1/08 (2006.01) A61F 11/04 (2006.01) A61N 1/05 (2006.01) A61N 1/36 (2006.01) A61N 1/378 (2006.01)
Patent
CA 2346283
The output stage of a tissue stimulating apparatus, for example a cochlear implant prosthesis, operating at a low supply voltage (35) incorporates a multiplier circuit (54, 62, 63, 64) for ensuring that voltage compliance is maintained in the event that high intensity stimulations are required. The multiplier circuit makes use of compliance monitoring so that multiplication is only used as required. Thus supply voltage is boosted to a high level temporarily thereby ensuring output current is maintained at the required level.
L'étage de sortie d'un appareil de stimulation tissulaire, par exemple un implant cochléaire, fonctionnant à une faible tension (35) d'alimentation, comprend un circuit (54, 62, 63, 64) multiplicateur destiné à garantir le maintien de la conformité de tension au cas où des stimulations de haute intensité seraient requises. Le circuit multiplicateur procède à une surveillance de conformité, de manière à n'utiliser la multiplication que si nécessaire. Ainsi, la tension d'alimentation est temporairement élevée à un niveau supérieur, ce qui garantit le maintien du courant de sortie au niveau requis.
Cochlear Limited
R. William Wray & Associates
LandOfFree
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