Amy Jean Brisben,David J. Ternes,Allan Charles Shuros,Deepa Mahajan,David L. Perschbacher
申请号：
US16256746
公开号：
US20190275329A1
申请日:
2019.01.24
申请国别(地区):
US
年份:
2019
代理人:
摘要：
Systems and methods for pacing cardiac conductive tissue are described. A medical system includes an electrostimulation circuit to generate His-bundle pacing (HBP) pulses. A sensing circuit senses a physiologic signal, and detect a local His-bundle activation discrete from a pacing artifact of the HBP pulse. A control circuit verifies capture status in response to the HBP pulses. Based on the capture status, the control circuit determines one or more pacing thresholds including a selective HBP threshold representing a threshold strength to capture only the His bundle but not the local myocardium, and a non-selective HBP threshold representing a threshold strength to capture both the His bundle and the local myocardium. The electrostimulation circuit may deliver HBP pulses based on the selective and non-selective HBP thresholds.
