Method and system for medical lead impedance test
First Claim
1. An apparatus for testing the impedance of a medical lead connecting an implantable stimulation device to one of either a nerve or a muscle, the implantable device comprising capacitor for stimulating the nerve or the muscle, said apparatus comprising:
- a current generator for generating a testing current ‘
I’
during a calibrated testing pulse ‘
STI’
, said current generator comprising a pulse generator for generating the calibrated testing pulse; and
a power circuit coupled to the capacitor and to the current generator for determining if the capacitor is charged by the testing current during the calibrated testing pulse.
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Abstract
An apparatus for testing the impedance of a medical lead connecting an implantable stimulation device to a nerve or a muscle. The implantable device is of the type comprising a capacitor for stimulating the nerve or the muscle. The system of the invention comprises a current generator for generating a testing current “I” during a calibrated testing pulse and a power circuit coupled to the capacitor and to the current generator for determining if the capacitor is charged by the testing current during the calibrated testing pulse.
65 Citations
9 Claims
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1. An apparatus for testing the impedance of a medical lead connecting an implantable stimulation device to one of either a nerve or a muscle, the implantable device comprising capacitor for stimulating the nerve or the muscle, said apparatus comprising:
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a current generator for generating a testing current ‘
I’
during a calibrated testing pulse ‘
STI’
, said current generator comprising a pulse generator for generating the calibrated testing pulse; and
a power circuit coupled to the capacitor and to the current generator for determining if the capacitor is charged by the testing current during the calibrated testing pulse. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification