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. 15, 2009
Filed:
Apr. 05, 2005
Annapurna Karicherla, Valencia, CA (US);
Xiaoyi Min, Thousand Oaks, CA (US);
Peter Boileau, Valencia, CA (US);
Jong Gill, Valencia, CA (US);
Gene A. Bornzin, Simi Valley, CA (US);
Annapurna Karicherla, Valencia, CA (US);
Xiaoyi Min, Thousand Oaks, CA (US);
Peter Boileau, Valencia, CA (US);
Jong Gill, Valencia, CA (US);
Gene A. Bornzin, Simi Valley, CA (US);
Pacesetter, Inc., Sylmar, CA (US);
Abstract
The implantable device is capable of performing thermal dilution analysis of the cardiac output of a patient using power delivered from an external source. By using power from an external source, the implantable device conserves its power resources for other purposes, such as for pacing or defibrillation therapy. In one example, an external programmer or bedside monitor provides power through a hand-held power delivery wand via electromagnetic induction, with the power routed from a subcutaneous coil to a heating element implanted in the right atrium, which heats blood as it passes through the right atrium. In another example, the heating element is formed of a material that generates heat in response to a beam of ultrasound provided by the wand. In either case, a downstream blood temperature profile is detected using a thermistor implanted in the pulmonary artery and cardiac output is then estimated by analyzing the temperature profile.