Periodic electrical lead intergrity testing system and method for implantable cardiac stimulating devices
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United States of America Patent
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Aug 27, 1996
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N/A
app pub date -
Dec 6, 1994
filing date -
Dec 6, 1994
priority date (Note) -
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Abstract
A periodic electrical lead integrity testing system is provided which periodically tests electrical leads used with an implantable cardiac stimulating device. The system is especially advantageous in multi-functional implantable cardiac stimulating devices. Lead integrity is evaluated by periodically comparing the impedance of the electrical leads to a reference impedance. A pass/fail algorithm is used to determine if electrical lead integrity has been compromised. The system improves the efficacy and safety of implantable cardiac stimulating devices by detecting electrical failures independent of the delivery of therapeutic shocks. The required circuitry adds only minimal complexity and cost to the implantable cardiac stimulating device.
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