CONTACTLESS BLOOD PRESSURE MONITORING OF A PATIENT

Contactless blood pressure monitoring, includes: illuminating a blood vessel of a patient with infrared ('IR') light; receiving, by an IR camera through a polarizing filter, IR light reflected by the patient; capturing at a time based on a heartrate of the patient, a first IR image of the...

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Bibliographic Details
Main Authors DRAEGER, DAVID R, VASQUEZ, JOHN D, JENNEY, ERIC H
Format Patent
LanguageEnglish
Published 17.05.2018
Subjects
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
MEDICAL OR VETERINARY SCIENCE
SURGERY
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Summary:Contactless blood pressure monitoring, includes: illuminating a blood vessel of a patient with infrared ('IR') light; receiving, by an IR camera through a polarizing filter, IR light reflected by the patient; capturing at a time based on a heartrate of the patient, a first IR image of the blood vessel of the patient when the blood vessel is distended; determining, from the first image, a maximum diameter of the blood vessel; capturing at a time based on the heartrate of the patient, a second IR image of the blood vessel of the patient when the blood vessel is contracted; determining, from the second IR image, a minimum diameter of the blood vessel; and calculating blood pressure of the patient in dependence upon the maximum and minimum diameters of the blood vessel.
Bibliography:Application Number: US201615349428