Physiological Blood Gas Detection Apparatus and Method
First Claim
Patent Images
1. A physiological sensing device, comprising:
- at least one electromagnetic radiation emitter; and
at least one silicon based photosensing diode for detecting multiple wavelengths of electromagnetic radiation from the at least one electromagnetic emitter.
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Abstract
The present disclosure is directed to methods and physiological sensing devices for determining blood gas concentrations in a human or animal subject. Such devices may further detect and measure the subject'"'"'s heart rate.
104 Citations
25 Claims
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1. A physiological sensing device, comprising:
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at least one electromagnetic radiation emitter; and at least one silicon based photosensing diode for detecting multiple wavelengths of electromagnetic radiation from the at least one electromagnetic emitter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A pulse oximeter device, comprising:
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at least one electromagnetic radiation emitter; and a silicon based photosensing diode for detecting multiple wavelengths of electromagnetic radiation from the at least one electromagnetic emitter;
wherein at least one wavelength is greater than 1050 nm, wherein the photosensing diode is operated at a bias less than about 30 volts. - View Dependent Claims (18, 19, 20, 21, 22)
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23. A method for determining blood gas levels in a human or animal appendage exposed to electromagnetic radiation having two different wavelengths, comprising the steps of
(a) generating electromagnetic radiation having first and second wavelengths; -
(b) exposing the selected appendage to the first and second electromagnetic radiations; (c) detecting the first and second electromagnetic radiations passing through the appendage with a silicon based photosensing diode; and (d) calculating the pulse and oxygen saturation levels in the human or animal from detected radiation. - View Dependent Claims (24, 25)
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Specification