Electronic stimulator implant

A - Human Necessities – 61 – N

Patent

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Details

IPC codes

A61N 1/36 (2006.01)

Type

Patent

Patent number

CA 2397957

Description

The present invention relates to lower urinary dysfunctions and more particularly to an electronic stimulator implant and method to improve bladder voiding and prevent bladder hyperreflexia. There is provided an electronic stimulator implant for which comprises a tonicity signal generator generating a tonicity signal which prevents bladder hyperreflexia combined with a voiding signal generator generating a voiding signal for voiding the bladder. The implant is connected to an end of an electrode, and the second end thereof is connected to a sacral nerve. When the voiding key (or switch) is activated, the voiding signal is generated which activates detrusor muscle contraction, causing bladder voiding. The voiding may be achieved without dyssynergia, by activating detrusor muscle contraction without activating external urethral sphincter contraction. The tonicity signal may he provided intermittently. The implant may be activated by a manually activated external controller.

L'invention concerne la réduction de dysfonctionnements urinaires et, plus particulièrement, un implant de stimulation électronique, ainsi qu'un procédé servant à améliorer l'évacuation de la vessie et à empêcher l'hyperréflexie de la vessie. Elle concerne un implant de stimulation électronique comprenant un générateur de signal de tonicité générant un signal de tonicité empêchant l'hyperréflexie de la vessie, combiné à un générateur de signal d'évacuation générant un signal d'évacuation afin d'évacuer la vessie. Cet implant est relié à une extrémité d'une électrode, dont la deuxième extrémité est reliée à un nerf sacré. Quand on active la touche (ou le contact) d'évacuation, ceci génère le signal d'évacuation et excite la contraction des muscles vésicaux provoquant l'évacuation de la vessie. Cette évacuation peut s'effectuer sans dyssynergie par activation de la contraction des muscles vésicaux sans déclencher la contraction des sphincters urétraux externes. Le signal de tonicité peut être émis par intermittence. On peut activer l'implant au moyen d'un dispositif de commande extérieur manuel.

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