SYSTEM AND METHOD FOR DETERMINING ARTERIAL PULSE WAVE TRANSIT TIME

摘要

What is disclosed is a system and method for determining the time it takes for an arterial pulse pressure wave to transit between a proximal and a distal point of a patient's body. In one embodiment, a signal is received from each of a first and second device worn circumferentially around a proximal and a distal region, respectively. The devices are worn on an area of exposed skin. Each of the devices comprises at least one emitter/detector pair fixed to an inner side of each device and has at least one detector paired to at least one illuminator. Each detector has at least one sensor that is sensitive to a wavelength band of light emitted by its illuminator. Each device generates signals that are proportional to an intensity of light emitted by an illuminator. The signals are analyzed to determine arterial pulse wave transit time between the proximal and distal regions.

主权项

1. A method for determining arterial pulse wave transit time, the method comprising:
receiving a signal from each of a first and second device worn on a proximal and a distal region, respectively, of a subject's body, each device comprising at least one emitter/detector pair fixed to an inner side with at least one detector being paired to at least one illuminator, each detector comprising at least one sensor that is sensitive to a wavelength band of light emitted by one of said illuminators, each device generates signals that are proportional to an intensity of light emitted by its illuminator, each emitter/detector pair being separated from its respective paired at least one illuminator by distance D; and analyzing said signals to determine an arterial pulse wave transit time for said subject between said proximal and distal regions.