Title:
【発明の名称】心房捕獲確認用心臓励起装置
Document Type and Number:
Japanese Patent JP2000502271
Kind Code:
A
Abstract:
A method of verifying whether an atrium of the heart has been captured by an atrial cardiac stimulation pulse. An atrial signal is sensed via an electrode located in the atrium during a period of time from before delivery of the stimulation pulse to after delivery of the stimulation pulse. The sensed signal is analyzed by detecting whether a P-wave occurred prior to delivery of the cardiac stimulation pulse such that stimulation pulse would have been delivered within a refractory period. If a P-wave did not occur, the slope of the sensed waveform signal is determined within a selected interval of time beginning at a selected time after the time of delivery of the stimulation pulse. A capture status signal is generated that indicates non-capture, if a P-wave was detected, or capture, if a P-wave component was not detected and the determined slope of the sensed waveform signal surpasses a pre-selected slope threshold demarcating capture from non-capture.
Inventors:
Edward A. Scrapel
Application Number:
JP52302897A
Publication Date:
February 29, 2000
Filing Date:
December 17, 1996
Export Citation:
Assignee:
Salzar Intermedics, Inc.
International Classes:
A61N1/365; A61N1/37; (IPC1-7): A61N1/37; A61N1/365
Attorney, Agent or Firm:
Seiji Yanagida (1 person outside)