Impedance measurement for an implantable device

Details Impedance measurement for an implantable device Impedance measurement for an implantable device

A - Human Necessities

61

N

A61N 1/18 (2006.01)

Patent

CA 2574438

A method and an apparatus for determining an impedance experienced by a lead associated with the implantable device. A substantially constant current signal is provided through a first terminal and a second terminal of the lead. A voltage across the first and second terminals is measured. An impedance across the first and second terminals is determined based upon the constant current signal and the measured voltage.

Cette invention concerne un procédé et un appareil servant à déterminer l'impédance subie par un conducteur associé à un dispositif implantable. A cet effet, un signal de courant essentiellement constant est appliqué à une première et à une seconde borne du conducteur. On mesure alors la tension sur ces première et seconde bornes et on détermine l'impédance sur ces première et seconde bornes en fonction du signal de courant constant et de la tension mesurée.

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