US 12,446,973 B2
Guidance for navigation and positioning of intravascularly delivered devices
Louis-Philippe Richer, Montreal (CA); Nikolaos Politis, Berlin (DE); Jan Mangual, Rho (IT); Saurabh Datta, Pleasanton, CA (US); Luc Soucie, Clarence Creek (CA); and Theodore Paul Dale, Corcoran, MN (US)
Assigned to St. Jude Medical, Cardiology Division, Inc., St. Paul, MN (US)
Filed by St. Jude Medical, Cardiology Division, Inc., St. Paul, MN (US)
Filed on Feb. 14, 2024, as Appl. No. 18/441,686.
Claims priority of application No. 23386019 (EP), filed on Mar. 9, 2023.
Prior Publication US 2024/0299101 A1, Sep. 12, 2024
Int. Cl. A61B 34/20 (2016.01); A61B 5/06 (2006.01); A61B 17/12 (2006.01); A61B 34/10 (2016.01); A61B 17/00 (2006.01)
CPC A61B 34/20 (2016.02) [A61B 5/068 (2013.01); A61B 17/12122 (2013.01); A61B 17/12172 (2013.01); A61B 34/10 (2016.02); A61B 2017/00026 (2013.01); A61B 2017/1205 (2013.01); A61B 2034/105 (2016.02); A61B 2034/2051 (2016.02)] 18 Claims
OG exemplary drawing
 
1. A medical navigation system for an intravascular procedure, the medical navigation system comprising:
a delivery device comprising a catheter;
a left atrial appendage (LAA) occlusion device configured to be releasably disposed in the catheter for deployment and implantation at a target site of a patient, the LAA occlusion device comprising a first plurality of electrodes, the first plurality of electrodes including at least one indicator electrode and at least one reference electrode configured to not contact tissue when the LAA occlusion device is deployed at the target site; and
a navigation computer system configured to be electrically coupled with the first plurality of electrodes, the navigation computer system comprising one or more processors and at least one memory storing instructions that, when executed by the one or more processors, cause the one or more processors to:
control a drive source to transmit current to the first plurality of electrodes;
collect electrode data corresponding to the first plurality of electrodes;
monitor impedance corresponding to the at least one indicator electrode based on the electrode data; and
determine that the at least one indicator electrode has made contact with the tissue based on the electrode data.