| US 7,462,152 B2 | ||
| Method and system utilizing SpO2 plethysmograph signal to reduce NIBP determination time | ||
| Sai Kolluri, Tampa, Fla. (US); Lawrence T. Hersh, Tampa, Fla. (US); Richard Medero, Tampa, Fla. (US); and Heather Menshouse, Odessa, Fla. (US) | ||
| Assigned to The General Electric Company, Schenectady, N.Y. (US) | ||
| Filed on Sep. 07, 2006, as Appl. No. 11/470,698. | ||
| Prior Publication US 2008/0082006 A1, Apr. 03, 2008 | ||
| Int. Cl. A61B 5/02 (2006.01) | ||
| U.S. Cl. 600—490 [600/495; 600/500; 600/494; 600/493] | 18 Claims |
| 1. A method of monitoring blood pressure in a patient, the method comprising the steps of:
providing a non-invasive blood pressure (NIBP) monitor having a selectively inflatable and deflatable blood pressure cuff
and at least one pressure transducer for detecting oscillation pulses from the patient;
acquiring a waveform of the patient, the waveform having a series of time-spaced pulses each representing a patient heartbeat;
analyzing the waveform to determine a timing period and a deflation period based upon the waveform;
inflating the pressure cuff to a first pressure level;
detecting the beginning of one of the oscillation pulses from the pressure transducer;
determining the amplitude of the oscillation pulse at the first pressure level during the timing period following the beginning
of the oscillation pulse; and
deflating the blood pressure cuff during the deflation period to a second pressure level, wherein the deflation period follows
the timing period.
|