Data communication system for control of transcutaneous...

A - Human Necessities – 61 – N

Patent

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Details

A61N 1/378 (2006.01) A61N 1/372 (2006.01)

Patent

CA 2266680

An implantable device with a data communication system for control of transcutaneous energy transmission to the implantable medical device, the implantable medical device having rechargeable batteries and a single coil that is employed both for energy transmission and data telemetry. Control circuitry in the implantable device senses battery voltage and current through the battery, encodes those values by use of a mulitplexer, and transmits the sened and encoded values through the coil to an external energy transmission device. The external device includes a coil that is electromagnetically coupled to the coil in the implantable device for receiving the encoded signals and for transmitting energy to the implantable device. The external device decodes the transmitted values and transmits those to a controller for controlling energy transmission.

L'invention concerne un dispositif implantable pourvu d'un système de communication de données servant à commander la transmission transcutanée d'énergie audit dispositif médical implantable, dispositif qui comporte des piles rechargeables et une seule bobine qui est utilisée à la fois pour la transmission de l'énergie et la télémesure des données. Une circuiterie de commande placée dans le dispositif implantable mesure la tension des piles et le courant qu'elles fournissent, code ces valeurs au moyen d'un multiplexeur et transmet les valeurs mesurées et codées, par l'intermédiaire de la bobine, à un dispositif de transmission d'énergie extérieur. Le dispositif extérieur comprend une bobine qui est couplée électromagnétiquement à la bobine située dans le dispositif implantable pour recevoir les signaux codés et transmettre l'énergie au dispositif implantable. Le dispositif extérieur décode les valeur transmises et les transmet à un contrôleur commandant la transmission d'énergie.

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