Electrocardiographic measurement method for controlling an intra

Details Electrocardiographic measurement method for controlling an intra Electrocardiographic measurement method for controlling an intra

1987-03-30

1989-03-07

Kamm, William E.

Surgery

Cardiac augmentation

With condition responsive means

128708, A61M 100

Patent

active

048096814

ABSTRACT:
A pair of spaced electrodes are disposed inside the thoracic aorta near the heart and are used to sense R- and P-waves in an ECG signal. The electrodes are moved to an ideal intra-aortic position, which is that where R- and P-waves are sensed to have the same magnitude, the P-wave, which occurs earlier than the R-wave, serving as means for accurately predicting the occurrence of the R-wave. The electrodes are affixed to the distal end of an intra-aortic balloon, which is capable of being disposed at the ideal position by monitoring of the R- and P-waves sensed by the electrodes. The balloon is deflated at the occurrence of the R-wave, which has been correctly predicted by the earlier P-wave.

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Mansfield Scientific, Inc. brochure directed to Ventri-Pace Torque and Ventri-Pace Semi-Floater catheters.

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