Process for sampling a cardiac parameter, in particular an intracardiac impedance, in an active implantable medical device such as pacemaker, defibrillator, cardiovertor and/or multisite device

Granted: Jul 8, 2003 Filed: Apr 3, 2001

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.