Title:
CONSTANT A-A INTERVAL CONTROL APPARATUS FOR DVI AND DDD CARDIAC PACE MAKER
Document Type and Number:
Japanese Patent JPS6034461
Kind Code:
A
Abstract:
A physiologic cardiac pacer operable in the DVI or A-V sequential pacing mode or the DDD or fully automatic pacing mode senses for the omission of an R-wave from an implantable cardiac pacer during the A-V interval. If the pacer does not sense a R-wave during the A-V interval the V-A interval is timed out immediately following the A-V interval and an atrial pacing pulse is issued at the end of the V-A interval. In the event, however, that an R-wave is sensed during the A-V interval, a flag is set and then the entire A-V interval is to be timed out, at which time the state of the flag is determined. If an R-wave was previously issued, a ventricular pacing pulse is not issued to the pacer at the end of the A-V interval, whereas if the flag is not set it is transmitted to the pacer.
Inventors:
JIYON SHII RUUTAA
Application Number:
JP12062984A
Publication Date:
February 22, 1985
Filing Date:
June 12, 1984
Export Citation:
Assignee:
MEDTRONIC INC
International Classes:
A61N1/365; A61N1/362; A61N1/368; (IPC1-7): A61N1/362
Attorney, Agent or Firm:
Kugoro Tamamushi