Intra-aortic balloon pump apparatus and method of using same
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United States of America Patent
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-
Sep 8, 1987
Grant Date -
N/A
app pub date -
Mar 28, 1986
filing date -
Mar 28, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and method for placing an aortic balloon catheter is provided wherein a pair of spaced electrodes on the distal end of the catheter assembly are disposed inside a thoracic aorta near a patient's heart and are used to sense R-waves and P-waves in an ECG signal. The electrodes are moved to an ideal intra-aortic position where the R-waves and P-waves are sensed to have the same magnitude. The P-wave, occurring earlier than the R-wave, serves to accurately predict theoccurrence of the R-wave. The balloon of the catheter is deflated upon sensing the R-wave.
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