Continuous blood pressure monitoring system having a digital cuf

Details Continuous blood pressure monitoring system having a digital cuf Continuous blood pressure monitoring system having a digital cuf

1990-08-23

1992-11-24

Cohen, Lee S.

Surgery

Truss

Pad

128687, 128681, A61B 5021

Patent

active

051654164

ABSTRACT:
A calibration system for a continuous blood pressure monitoring system using a tonometric sensor for continuously detecting a pulse wave comprises a digital cuff adapted to be placed around a digit of the patient for applying a calibration pressure to the digit; a pressure source coupled to the digital cuff for supplying the calibration pressure; a calibration sensor for measuring an actual blood pressure in the digit; and a microprocessor for determining a calibration factor for the tonometric sensor based on the actual blood pressure measured by the calibration system. The digital cuff is located on the patient such that the cuff is downstream of the artery over which the tonometer sensor is located. According to one aspect of the invention, a digital cuff pressure sensor is connected to the pressure source for determining the magnitude of the calibration pressure and a pulsatile component indicative of blood pressure in the digit.

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