Pulse oxymeter having probe with warming means
First Claim
1. A pulse oxymeter for measuring a blood oxygen saturation of a subject, including (a) a first device for emitting toward a body portion of the subject a first light having a first wavelength and a second light having a second wavelength different from the first wavelength, (b) a second device for detecting an intensity of each of the first and second light transmitted through, or reflected by, the body portion of the subject and generating a photoelectric pulse wave signal representative of the detected intensity of each of the first and second lights, (c) a third device for determining a blood oxygen saturation of the subject based on the pulse wave signals corresponding to the first and second lights, (d) a heat conductor body adapted to contact the body portion, (e) a temperature changing device for changing a temperature of the heat conductor body, (f) a measuring device for measuring the temperature of the heat conductor body, and (g) a probe which supports the first and second devices, heat conductor body, and temperature changing device, wherein the improvement comprises:
- a deep body thermometer for measuring a deep body temperature of said subject; and
control means for controlling said temperature changing device so that the measured temperature of said heat conductor body is equal to the measured deep body temperature of said subject.
2 Assignments
0 Petitions
Accused Products
Abstract
A pulse oxymeter for measuring a blood oxygen saturation of a subject, including a first device for emitting toward a body portion of the subject a first light having a first wavelength and a second light having a second wavelength different from the first wavelength, a second device for detecting an intensity of each of the first and second lights transmitted through, or reflected by, the body portion of the subject and generating a photoelectric pulse wave signal representative of the detected intensity of each of the first and second lights, a third device for determining a blood oxygen saturation of the subject based on the pulse wave signals corresponding to the first and second lights, a probe which supports the first and second devices and is adapted to contact the body portion of the subject, and a warming device for warming the body portion of the subject.
-
Citations
11 Claims
-
1. A pulse oxymeter for measuring a blood oxygen saturation of a subject, including (a) a first device for emitting toward a body portion of the subject a first light having a first wavelength and a second light having a second wavelength different from the first wavelength, (b) a second device for detecting an intensity of each of the first and second light transmitted through, or reflected by, the body portion of the subject and generating a photoelectric pulse wave signal representative of the detected intensity of each of the first and second lights, (c) a third device for determining a blood oxygen saturation of the subject based on the pulse wave signals corresponding to the first and second lights, (d) a heat conductor body adapted to contact the body portion, (e) a temperature changing device for changing a temperature of the heat conductor body, (f) a measuring device for measuring the temperature of the heat conductor body, and (g) a probe which supports the first and second devices, heat conductor body, and temperature changing device, wherein the improvement comprises:
-
a deep body thermometer for measuring a deep body temperature of said subject; and control means for controlling said temperature changing device so that the measured temperature of said heat conductor body is equal to the measured deep body temperature of said subject. - View Dependent Claims (2, 3, 4)
-
-
5. A pulse oxymeter for measuring a blood oxygen saturation of a subject, including (a) a first device for emitting toward a body portion of the subject a first light having a first wavelength and a second light having a second wavelength different from the first wavelength, (b) a second device for detecting an intensity of each of the first and second lights transmitted through, or reflected by, the body portion of the subject and generating a photoelectric pulse wave signal representative of the detected intensity of each of the first and second lights, (c) a third device for determining a blood oxygen saturation of the subject based on the pulse wave signals corresponding to the first and second lights, (d) a heat conductor body adapted to contact the body portion, (e) a temperature changing device for changing a temperature of the heat conductor body, and (f) a supporting device for supporting the first device, second device, heat conductor body, and temperature changing device, wherein the improvement comprises:
-
said temperature changing device comprising a Peltier'"'"'s element, said Peltier'"'"'s element contacting said heat conductor body; said temperature changing device further comprising heat radiating means for radiating heat, said heat radiating means having a first surface contacting said Peltier'"'"'s element and a second surface contacting ambient atmosphere; and control means for controlling said Peltier'"'"'s element by changing directions of a direct electric current supplied to the Peltier'"'"'s element, so that the Peltier'"'"'s element generates heat to said heat conductor body, or sinks heat from the heat conductor body. - View Dependent Claims (6, 7, 8, 9, 10, 11)
-
Specification