Patent ID: 11857293
Assignee: nan
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 0:
1. A method, comprising:
monitoring, with one or more sensors, physiological data of a patient over a time period, wherein the physiological data is cardiovascular data of the patient;
analyzing, with a computer system, the physiological data, wherein analyzing the physiological data further comprises:
comparing a sample of the physiological data against a model, the model comprising reference data representing a plurality of reference waveforms, each reference waveform of the plurality of reference waveforms corresponding to a respective compensatory reserve index (“CRI”) value based on at least on a ratio of a time-dependent intravascular volume loss and an intravascular volume loss at a point of hemodynamic decompensation,
wherein the compared, sampled physiological data comprises data representing one or more patient waveforms obtained over the time period,
wherein comparing the sampled physiological data to the model further comprises comparing the sampled physiological data representing each of the one or more patient waveforms with the reference data representing each of the plurality of reference waveforms of the model;
determining a similarity between the compared, sampled physiological data of each of the one or more patient waveforms and the reference data representing each of the plurality of reference waveforms of the model;

estimating a plurality of CRI values of the patient, based at least in part on the determined similarities;
estimating a probability that the patient is bleeding based on, at least in part, a rate of change between at least two of the plurality of values of CRI that are estimated by comparison of the physiological data obtained from the patient at two or more respective times during the time period to the reference data representing each of the plurality of reference waveforms of the model; and
outputting one or more control signals to control the operation of a rapid transfuser to transfuse the patient with blood or blood products based on the assessment that the patient is probably bleeding.