Bio-impedance apparatus and method

Surgery – Diagnostic testing – Measuring electrical impedance or conductance of body portion

Reexamination Certificate

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C600S481000, C600S484000, C600S506000, C600S533000, C600S561000, C606S032000

Reexamination Certificate

active

07907998

ABSTRACT:
A method of determining an impedance of at least one lung of a patient having an implanted pacemaker that comprises first and second leads and a case, the method comprising:a) using the leads and the case to acquire at least a first and a second impedance measurement responsive to impedance of the patient's chest that are at least partially independent; andb) using the impedance measurements to determine the impedance of at least one of the lungs substantially independently of impedance of the other lung.

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