Arrangement for noninvasive determination of the oxygen saturation in human blood vessels or organs
First Claim
1. A method for the non-invasive in vivo determination of oxygen saturation in human blood vessels and organs comprising:
- a) providing a first oxygen measurement sensor having at least two light sources of different wavelengths and at least one receiver therefor;
b) providing a second position measurement sensor which forms a constructional unit with the first oxygen measurement sensor;
c) locating a specific position external to but adjacent to a predetermined vessel or organ with the second position measurement sensor;
d) positioning the first oxygen measurement sensor at the specific position and monitoring the position with the second position measurement sensor;
e) radiating light from the light sources on the blood vessel or organ, such that the light which is transmitted by oxygen particles bonded with hemoglobin in the irradiated blood vessel or organ and reflected by the surrounding tissue is received by the receiver;
f) converting the reflective light received by the receiver into an electrical signal that is proportional to the intensity of the reflected light;
g) transmitting the electrical signal to a pulsoximeter to determine the oxygen saturation in the blood vessel or organ.
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Accused Products
Abstract
Arrangement for determining the oxygen saturation in human blood vessels and organs with a measurement sensor with at least two light sources of different wavelengths--preferably wavelengths of 660 nm and 940 nm--and with at least one receiver which receives the light transmitted and reflected from the oxygen particles which are bonded with the hemoglobin in the irradiated vessel or organ and transmits it as an electrical signal to a pulsoximeter for evaluation of the measurement results and readout on a display device. An additional measurement sensor is associated with the measurement sensor for locating a blood vessel or organ to be selected and the two measurement sensors are designed such that they can be handled together as a constructional unit.
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Citations
13 Claims
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1. A method for the non-invasive in vivo determination of oxygen saturation in human blood vessels and organs comprising:
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a) providing a first oxygen measurement sensor having at least two light sources of different wavelengths and at least one receiver therefor; b) providing a second position measurement sensor which forms a constructional unit with the first oxygen measurement sensor; c) locating a specific position external to but adjacent to a predetermined vessel or organ with the second position measurement sensor; d) positioning the first oxygen measurement sensor at the specific position and monitoring the position with the second position measurement sensor; e) radiating light from the light sources on the blood vessel or organ, such that the light which is transmitted by oxygen particles bonded with hemoglobin in the irradiated blood vessel or organ and reflected by the surrounding tissue is received by the receiver; f) converting the reflective light received by the receiver into an electrical signal that is proportional to the intensity of the reflected light; g) transmitting the electrical signal to a pulsoximeter to determine the oxygen saturation in the blood vessel or organ. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method for the non-invasive in vivo determination of oxygen saturation in human blood vessels and organs comprising:
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a) providing a first oxygen measurement sensor having at least two light sources of different wavelengths and at least one receiver therefor; b) providing a second position measurement sensor comprising a sonography transmitter-receiver which emits ultrasonic waves, which forms a constructional unit with the first oxygen measurement sensor; c) locating a specific position external to but adjacent to a predetermined vessel or organ with the second position measurement sensor; d) positioning the first oxygen measurement sensor at the specific position and monitoring the position with the second position measurement sensor; e) radiating light from the light sources on the blood vessel or organ, such that the light which is transmitted by oxygen particles bonded with hemoglobin in the irradiated blood vessel or organ and reflected by the surrounding tissue is received by the receiver; f) converting the reflective light received by the receiver into an electrical signal that is proportional to the intensity of the reflected light; g) transmitting the electrical signal to a pulsoximeter to determine the oxygen saturation in the blood vessel or organ.
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Specification