Automatic calibration of blood volume status indicators

Details Automatic calibration of blood volume status indicators Automatic calibration of blood volume status indicators

2005-12-13

2005-12-13

Nasser, Robert L. (Department: 3736)

Surgery

Diagnostic testing

Cardiovascular

C600S301000, C600S485000, C600S507000

Reexamination Certificate

active

06974418

ABSTRACT:
In a method for calibrating an indicator of the status of blood volume in a patient breathing with the aid of a mechanical ventilator, blood pressure data is obtained from the patient and used to determine a patient blood volume status indicator. Changes in at least one patient physiological characteristic or ventilator operating parameter are ascertained and used to alter the patient blood volume status indicator to provide a calibrated patient blood volume status indicator.

REFERENCES:
patent: 5048532 (1991-09-01), Hickey
patent: 6585658 (2003-07-01), Redaelli et al.
“The effect of the tidal volume and intravascular volume state on systolic pressure variation in ventilated dogs”, A. Szold et al., Intensive Care Med (1989) vol. 15, pp. 368-371.

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