Patent ID: 9655666
Date: 2017-05-23
CPC Classifications: A61B,A61M

Claim:
1. A method of operating a medical device in a patient, comprising: positioning an inflatable first chamber of a medical device adjacent a first tissue region, the first tissue region including cardiac tissue, the inflatable first chamber including an expandable portion that is electrically conductive, the expandable portion being configured to be expanded to a maximum cross-sectional diameter of the inflatable chamber when the medical device is in use; directing a cryogenic coolant through a first fluid flow path into the inflatable first chamber to expand the expandable portion of the inflatable first chamber; positioning an inflatable second chamber of the medical device adjacent a second tissue region, the second tissue region including a portion of the coronary sinus, the inflatable second chamber including an expandable portion that is configured to be expanded to a maximum cross-sectional diameter of the inflatable second chamber when the medical device is in use; directing a cryogenic coolant through a second fluid flow path into the inflatable second chamber to expand the expandable portion of the inflatable second chamber; anchoring the expanded inflatable first chamber to the first tissue region through cryoadhesion and anchoring the expanded inflatable second chamber to the second tissue region through cryoadhesion; positioning at least one of a diagnostic element and a therapeutic element of the medical device adjacent a third tissue region; operating the at least one of a diagnostic element and therapeutic element proximate to the third tissue region; and obtaining positional information from the expandable electrically conductive portion of the inflatable first chamber and transmitting the positional information from the electrically conductive portion of the inflatable first chamber to a position sensing system.