Device and method suitable for monitoring arterial blood in a body part
First Claim
1. A device suitable for monitoring arterial blood in a body part of a person during exercise, the device suitable for wearing on the body part, the device comprising:
- at least two light emitters;
at least two sensors;
a support configured for attachment to the body part and retaining the at least two light emitters and the at least two sensors;
the at least two emitters configured to emit light of a same frequency and in consecutive order;
wherein the emitter and detector are arranged with respect to the support such that when operated light from each of the at least two emitters arrives at each of the at least two sensors in a direction different from that of light from the other of the at least two light emitters to the same sensor, and also in a direction different from that of light from the same emitter to the other one of the at least two sensors so as to detect at least three observations of light emissions in different directions by the at least two sensors.
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Accused Products
Abstract
A device for monitoring heart rate or blood oxygen level during exercise is disclosed having sensors and emitters, wherein the sensors are used to monitor transmission from each of the emitters in turn. This provides a possibility that a smaller device can be provided since less sensors and emitters can be used while obtaining more number of observations. In some embodiments, the repeated use of sensors with different emitters introduces redundancy into the device so that the device is more robust and may function even in the event that one or two of the emitters and sensors have broken down.
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Citations
15 Claims
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1. A device suitable for monitoring arterial blood in a body part of a person during exercise, the device suitable for wearing on the body part, the device comprising:
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at least two light emitters; at least two sensors; a support configured for attachment to the body part and retaining the at least two light emitters and the at least two sensors; the at least two emitters configured to emit light of a same frequency and in consecutive order; wherein the emitter and detector are arranged with respect to the support such that when operated light from each of the at least two emitters arrives at each of the at least two sensors in a direction different from that of light from the other of the at least two light emitters to the same sensor, and also in a direction different from that of light from the same emitter to the other one of the at least two sensors so as to detect at least three observations of light emissions in different directions by the at least two sensors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of obtaining observations of light transmission to monitor arterial blood in a body part of a person during exercise, comprising:
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providing at least two sensors on the body part; providing a first emitter and a second emitter on the body part, the first and second emitter capable of emitting light in a same frequency; operating the first emitter and the second emitter to emit light one after the other in order; detecting with one of the at least two sensors light from the first emitter and the second emitter in the order that the first emitter and the second emitter emit light to obtain a first observation and a second observation, and detecting with another one of the at least two sensors light from the first emitter and the second emitter in the order that the first emitter and the second emitter emit light to obtain a third observation and a fourth observation, wherein the first emitter and second emitter and the at least two sensors are provided on the body part in an arrangement such that light from each of the emitters arrives at each of the at least two sensors in a direction different from that of light from the other or others of the emitters to the same sensor, and also in a direction different from that of light from the same emitter to the other one of the at least two sensors so as to detect at least three observations of light emissions in different directions by the at least two sensors. - View Dependent Claims (14, 15)
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Specification