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:
Oct. 02, 2012
Filed:
Jul. 29, 2009
Michael Lau, Fremont, CA (US);
Randell Werneth, San Diego, CA (US);
Timothy J. Corvi, Carlsbad, CA (US);
Sumita Bhola, Irvine, CA (US);
Mark T. Stewart, Lino Lakes, MN (US);
Michel Haïssaguerre, Bordeaux-Pessac, FR;
Meleze Hocini, Pessac, FR;
Michael Lau, Fremont, CA (US);
Randell Werneth, San Diego, CA (US);
Timothy J. Corvi, Carlsbad, CA (US);
Sumita Bhola, Irvine, CA (US);
Mark T. Stewart, Lino Lakes, MN (US);
Michel Haïssaguerre, Bordeaux-Pessac, FR;
Meleze Hocini, Pessac, FR;
Medtronic Cryocath LP, Toronto, Ontario, CA;
Abstract
Catheters and methods for obtaining monophasic action potential ('MAP') electrograms include a flexible catheter body defining a longitudinal axis, and a distal assembly affixed to the catheter body distal end defining a distal tip. The distal assembly has at least three MAP recording electrodes, and at least one reference electrode for determining reference potential. The recording electrodes are each positioned a radial distance from the longitudinal axis in at least three different radial directions, defining a recording geometry substantially having radial symmetry. The reference electrode is a longitudinal distance from the recording geometry. Optional features include a steerable catheter shaft, one or more radio-frequency ablation electrodes, and a dedicated pacing electrode. Different possible embodiments include a dome housing having the recording electrodes in a fixed spatial arrangement, and a distal loop assembly having an array of electrodes on at least three flexible loop elements.