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US 2012/0259189 A1Published application
Cardiovascular index estimation methods
AssigneeMassachusetts Institute of Technology
InventorsRichard Jonathan Cohen, Tatsuya Arai
Life of this patent
Estimating the term…
Abstract
New algorithms to estimate cardiovascular indices by analysis of the arterial blood pressure (ABP) signal. The invention comprises recording and identification of cardiovascular descriptors (including ABP signal, diastolic pressure, systolic pressure, pulse pressure, and end systole), calculation of cardiovascular system parameters, and calculation of aortic blood flow, stroke volume, cardiac output, total peripheral resistance, and characteristic time constant.
Claims23
Method for estimating cardiovascular indices comprising:
- recording a physiological signal;
- estimating end-systole of one or more cardiac cycles by means other than detecting a dicrotic notch;
- and
- processing the physiological signal to estimate the cardiovascular indices.
1 more element
Method for estimating cardiovascular indices comprising:
- recording an arterial blood pressure signal
- processing the arterial blood pressure signal to estimate the instantaneous aortic blood flow.
Dependencies are inferred from the claim text.