ATRIAL FIBRILLATION DIVISION; INC.;ST. JUDE MEDICAL
发明人:
RICHARD J. OLSON
申请号：
US16087804
公开号：
US20200297239A1
申请日:
2017.04.05
申请国别(地区):
US
年份:
2020
代理人:
摘要：
Systems, apparatuses and methods are provided for identifying the position of a catheter relative to internal tissue and controlling injection of a therapeutic substance(s) into the internal tissue. In one embodiment, a catheter includes one or more position sensing electrodes disposed at or near a distal end of the catheter that allow identifying the position of the catheter relative to the internal tissue. The catheter also includes one or more contact sensors that provide an indication of contact and/or contact forces between the catheter and internal tissue before and after a therapy delivery needle is extended from the catheter into the internal tissue. Outputs of the contact sensor(s) allows for confirming insertion of the therapy delivery needle into the internal tissue to a desired depth. Once inserted to the desired depth, a therapeutic substance may be injected into the internal tissue at the desired depth.
