Intra-aortic balloon pump apparatus and method of using same
US4692148A · kind A · utility
170Cited by
16References
9Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 28, 1986 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Mar 28, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/3303
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.