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:
Sep. 04, 2018
Filed:
Aug. 23, 2013
Medtronic Cryocath Lp, Toronto, CA;
Marcin Kowalski, New York, NY (US);
Scott A. Ransom, Marysville, WA (US);
Nicolas Coulombe, Anjou, CA;
Medtronic CryoCath LP, Toronto, Ontario, CA;
Abstract
A method and system for monitoring phrenic nerve function and preventing phrenic nerve injury during cardiac ablation. The system includes a pacing device operable to transmit stimulation energy to the phrenic nerve through target tissue proximate the phrenic nerve, a plurality of assessment electrodes operable to make comparisons between baseline, real-time, and predetermined threshold values for CMAP signal amplitude and amplitude over time. The processing device may be connected to an ablation console, and the processing device may interrupt or adjust an ablation procedure controlled by the ablation console and/or generate a system alert in response to one of these comparisons, if the comparison indicates phrenic nerve injury. The method includes applying stimulation energy to the phrenic nerve, recording diaphragmatic CMAP signals in response to the stimulation energy, and adjusting an ablation procedure and/or automatically generating a system alert in response to comparisons performed by the processing device.