发明名称 |
SENSING AND ATRIAL-SYNCHRONIZED VENTRICULAR PACING IN AN INTRACARDIAC PACEMAKER |
摘要 |
An intracardiac pacemaker is configured to receive a cardiac electrical signal developed across a pair of electrodes coupled to the pacemaker and detect a crossing of a first sensing threshold of the cardiac electrical signal. A pacing escape interval timer is set to a first pacing escape interval in response to the cardiac electrical signal crossing the first sensing threshold. The pacing escape interval timer is adjusted if the cardiac electrical signal crosses a second sensing threshold during a time limit. |
申请公布号 |
US2016114169(A1) |
申请公布日期 |
2016.04.28 |
申请号 |
US201514821047 |
申请日期 |
2015.08.07 |
申请人 |
Medtronic, Inc. |
发明人 |
Sheldon Todd J.;Demmer Wade M.;Guo Margaret G. |
分类号 |
A61N1/37 |
主分类号 |
A61N1/37 |
代理机构 |
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代理人 |
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主权项 |
1. A medical device system, comprising:
an intracardiac pacemaker, the pacemaker comprising: a sensing module configured to receive a cardiac electrical signal and detect a crossing of a first sensing threshold by the cardiac electrical signal; a pulse generator configured to generate and deliver a pacing pulse to the patient's heart via a pair of electrodes, and a control module coupled to the sensing module and the pulse generator and configured to:
set a pacing escape interval timer to a first pacing escape interval in response to the cardiac electrical signal crossing the first sensing threshold,set a time limit in response to the cardiac electrical signal crossing the first sensing threshold, the time limit shorter than the first pacing escape interval;adjust the pacing escape interval timer in response to the cardiac electrical signal crossing a second sensing threshold higher than the first sensing threshold within the time limit; andcontrol the pulse generator to deliver the pacing pulse if the first pacing escape interval expires. |
地址 |
Minneapolis MN US |