Optical vital sign detection method and measurement device
First Claim
1. A vital sign measurement device comprising:
- a sensor fixation device adapted to be placed against an anatomical location of a subject, within which is an artery;
an optical sensing system comprising an optical source, an optical refractor, and an optical detector, all of which are held by the sensor fixation device and move with movement of the sensor fixation device, wherein the optical sensing system is at least in part positioned on a cantilevered support;
a sensor pad held by the sensor fixation device so that it is placed against the anatomical location when the sensor fixation device is placed against the anatomical location, wherein at least a part of the optical sensing system is positioned between the sensor pad and the cantilevered support such that a movement of the sensor pad corresponding to an arterial pulse results in a pressing portion of the sensor pad pressing against at least one portion of the optical sensing system to cause a movement, bending, or compression of the at least one portion of the optical sensing system relative to other portions of the optical sensing system resulting in a change in an optical signal received by the optical detector; and
an output unit that receives, from the optical sensing system, an input indicative of movement corresponding to an arterial pulse and that generates, using the input, a measure of the vital sign.
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Accused Products
Abstract
A vital sign measurement device includes a sensor fixation device, an optical sensing system, and an output unit. The sensor fixation device is adapted to be placed against an anatomical location of a subject, within which is an artery. The optical sensing system includes an optical source, an optical refractor, and an optical detector, all of which are held by the sensor fixation device and move with movement of the sensor fixation device. The optical sensing system is positioned with respect to the sensor fixation device to sense movement corresponding to an arterial pulse when the sensor fixation device is placed against the anatomical location of the subject. The optical sensing system can sense an arterial pulse from the movement, bending, or compression of at least one portion of the optical sensing system relative to other portions of the optical sensing system resulting in a change in an optical signal received by the optical detector. The output unit receives, from the optical sensing system, an input indicative of movement corresponding to an arterial pulse and generates, using the input, a measure of the vital sign.
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Citations
23 Claims
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1. A vital sign measurement device comprising:
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a sensor fixation device adapted to be placed against an anatomical location of a subject, within which is an artery; an optical sensing system comprising an optical source, an optical refractor, and an optical detector, all of which are held by the sensor fixation device and move with movement of the sensor fixation device, wherein the optical sensing system is at least in part positioned on a cantilevered support; a sensor pad held by the sensor fixation device so that it is placed against the anatomical location when the sensor fixation device is placed against the anatomical location, wherein at least a part of the optical sensing system is positioned between the sensor pad and the cantilevered support such that a movement of the sensor pad corresponding to an arterial pulse results in a pressing portion of the sensor pad pressing against at least one portion of the optical sensing system to cause a movement, bending, or compression of the at least one portion of the optical sensing system relative to other portions of the optical sensing system resulting in a change in an optical signal received by the optical detector; and an output unit that receives, from the optical sensing system, an input indicative of movement corresponding to an arterial pulse and that generates, using the input, a measure of the vital sign. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A vital sign measurement device comprising:
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a sensor fixation device adapted to be placed against an anatomical location of a subject, within which is an artery; an optical sensing system comprising an optical source, a diffuser, and an optical detector, all of which are held by the sensor fixation device and move with movement of the sensor fixation device, wherein the optical sensing system is at least in part positioned on a cantilevered support, the optical sensing system positioned with respect to the sensor fixation device such that an exterior movement of the anatomical location corresponding to an arterial pulse causes a pressing portion of a sensor pad which is located on the cantilevered support to press, bend, or move a fixed portion of the optical sensing system when the sensor fixation device is placed against the anatomical location of the subject, the optical sensing system sensing an arterial pulse from the movement, bending, or compression of at least one portion of the optical sensing system relative to other portions of the optical sensing system resulting in a change in an optical signal received by the optical detector; and an output unit that receives, from the optical sensing system, an input indicative of movement corresponding to an arterial pulse and that generates, using the input, a measure of the vital sign.
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Specification