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AssigneePacesetter, Inc.
InventorGabriel Mouchawar
Estimating the term…
An implantable cardiac stimulating device incorporating high voltage leads for the delivery of cardioversion or defibrillation waveforms is provided. The implantable cardiac stimulating device incorporates a lead impedance measurement which measures the impedance of the high voltage lead using a high frequency, e.g., 20 KHz or higher, low amplitude, e.g., 500 microamps or lower, signal which results in a lead impedance measurement that has a high degree of correlation to the lead impedance that would occur when the high voltage defibrillation or cardioversion waveform is applied to the heart from the electrode. The implantable cardiac stimulating device is further configured to take corrective action upon the detection of a lead having a high or low impedance that suggests a broken, shorted or damaged lead.
An implantable cardiac stimulation device enclosed in a conductive housing and adapted for use with at least one cardiac lead suitable for shocking a patient's heart, the device further adapted to detect lead fractures that would prevent a high voltage shock to a patient's heart, the device comprising:
In a cardiac stimulation device enclosed in an electrically conductive housing and configured for use with at least one cardiac lead suitable for shocking a patient's heart and a current return, a method of determining the impedance of such lead to detect lead fractures that would prevent a high voltage shock to a patient's heart, the method comprising the steps of:
An implantable cardiac stimulation device enclosed in a conductive housing and adapted for use with cardiac lead means, the device further adapted to measure the impedance of said lead means, the device comprising:
Dependencies are inferred from the claim text.