The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 17, 2002
Filed:
May. 25, 2000
Arthur Wallace, San Rafael, CA (US);
The Regents of the University of California, Oakland, CA (US);
Abstract
Determining the cardiac output of a patient uses first and second electrodes disposed with the peri-aortic adventitia or fat pad of the patient. Third electrode is disposed on the cardiac atrial area of the patient. Fourth electrode is placed either externally on the body surface or internally superior to electrodes one and two. A bioelectrical impedance recorder is coupled to the third and fourth electrodes to pass a current between the electrodes. A bioimpedance recorder is coupled to the first and second electrodes to measure the resulting voltage. The output of the bioelectrical impedance recorder is processed to compute a metric corresponding to the patient's cardiac output. The third electrodes are adapted to be the cardiac pacing electrodes.