Process and device for deep-selective detection of spontaneous activities and general muscle activites
First Claim
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1. A process for deep selective detection of spontaneous activities and general muscle activities in tissue comprising:
- emitting photons of a coherent and monochromatic electromagnetic radiation of a wavelength λ
1 in a range between 600 nm and 1200 nm such that the emitted photons penetrate the tissue through a first area in the tissue;
emitting photons of a coherent and monochromatic electromagnetic radiation of a wavelength λ
2 in a range between 600 nm and 1200 nm such that the emitted photons penetrate the tissue through a second area in the tissue, wherein the wavelengths λ
1 and λ
2 are selected such that interference fringes do not occur;
detecting the photons of the wavelength λ
1 as they re emerge from the tissue in a third area of the tissue that is separate from the first area, wherein the photons are detected with regard to a first frequency shift and a first number or intensity of photons by means of an evaluation program or algorithm;
detecting the photons of the wavelength λ
2 as they re-emerge from the tissue in a fourth area of the tissue that is separate from the second area, wherein the photons are detected with regard to a second frequency shift and second number or intensity of photons by means of an evaluation program or algorithm;
determining based on the first and second frequency shifts, the first and second number or intensity of photons, and the location of the second area in relation to the third area and the location of the second area in relation to the fourth area muscle activity, a number of active muscles, and a physical position for each of the active muscles in the tissue;
a process for deep-selective detection of spontaneous activities and general muscle activities in tissue that utilizes an optical Doppler effect.wherein the first and second detected frequencies are both Doppler-shifted such that the re-emerging photons are detected with respect to a first Doppler-shifted frequency or with respect to a second Doppler-shifted frequency.
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Abstract
What is described here is a process and a device for deep-selective detection of spontaneous activities and general muscle activities in biological tissue. In this process, photons of a coherent and monochromatic electromagnetic radiation of the wavelength λ1 penetrate the tissue in the range between 600 and 1,200 nm and re-emerge from the tissue at differently distanced areas, then being detected with regard to frequency and number or intensity. By means of an evaluation program or algorithm, this information in connection with the respective area as point of emergence of the photons allows conclusions to be drawn about the muscle activity and/or number of active muscles and/or the physical position of the active muscles in the tissue. In order to improve the preciseness, it is intended to insert photons into the tissue of at least one further coherent and monochromatic electromagnetic radiation of another wavelength λ2 and to detect them after emergence from the tissue with regard to frequency and number or intensity. The wavelengths λ1 and λ2 are selected in such a way that there will not occur any interference fringes.
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Citations
30 Claims
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1. A process for deep selective detection of spontaneous activities and general muscle activities in tissue comprising:
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emitting photons of a coherent and monochromatic electromagnetic radiation of a wavelength λ
1 in a range between 600 nm and 1200 nm such that the emitted photons penetrate the tissue through a first area in the tissue;emitting photons of a coherent and monochromatic electromagnetic radiation of a wavelength λ
2 in a range between 600 nm and 1200 nm such that the emitted photons penetrate the tissue through a second area in the tissue, wherein the wavelengths λ
1 and λ
2 are selected such that interference fringes do not occur;detecting the photons of the wavelength λ
1 as they re emerge from the tissue in a third area of the tissue that is separate from the first area, wherein the photons are detected with regard to a first frequency shift and a first number or intensity of photons by means of an evaluation program or algorithm;detecting the photons of the wavelength λ
2 as they re-emerge from the tissue in a fourth area of the tissue that is separate from the second area, wherein the photons are detected with regard to a second frequency shift and second number or intensity of photons by means of an evaluation program or algorithm;determining based on the first and second frequency shifts, the first and second number or intensity of photons, and the location of the second area in relation to the third area and the location of the second area in relation to the fourth area muscle activity, a number of active muscles, and a physical position for each of the active muscles in the tissue; a process for deep-selective detection of spontaneous activities and general muscle activities in tissue that utilizes an optical Doppler effect. wherein the first and second detected frequencies are both Doppler-shifted such that the re-emerging photons are detected with respect to a first Doppler-shifted frequency or with respect to a second Doppler-shifted frequency. - View Dependent Claims (2, 3, 5)
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4. The process according to one of the aforementioned claims, further comprising:
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emitting photons of a coherent and monochromatic electromagnetic radiation of a wavelength λ
3 which is less than 600 nm and 1200 nm such that the emitted photons penetrate the tissue through a fifth area in the tissue, wherein the wavelengths λ
1, λ
2 and λ
3 are selected and has been inserted such that interference fringes do not occur and has been inserted;detecting the photons of the wavelength λ
3 as they re-emerge from the tissue in a sixth area of the tissue that is separate from the fifth area, wherein the photons are detected with regard to a third frequency shift and a third number or intensity of photons by means of an evaluation program or algorithm.
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6. A device for deep selective detection of spontaneous activities and general muscle activities in tissue, comprising:
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a first radiation source for emitting photons of a coherent and monochromatic electromagnetic radiation of a wavelength λ
1 (600 nm≦
λ
1≦
1200 nm through a locally defined first area of the tissue;a plurality of detectors for detecting and recording the photons re-emerging from the tissue at a set of areas of the tissue, the set areas are arranged at different distances from the first area, wherein the emerging photons are detected by the plurality of detectors with regard to a first frequency shift and a first number or intensity of photons using a detected interference pattern based on the photons emerging from the set of areas, a distance from the first area to an area of the set of areas that each photon emerges from the tissue t in connection with the frequency-shifted photons scattered on the tissue, wherein a deep-selective recording of muscle activity in the tissue is carried out based on the detected frequency shifts, at least one further radiation source which emits photons of a coherent and monochromatic electromagnetic radiation of a wavelength λ
2 into the tissue, wherein λ
2≠
λ
1;a plurality of additional detectors which also record the frequency-shifted photons scattered on the tissue of the original wavelength λ
1 with regard to frequency shifts and number or intensity of photons for deep-selective recording of muscle activity; anda process for deep-selective detection of spontaneous activities and general muscle activities in tissue that utilizes an optical Doppler effect, wherein the first and second detected frequencies are both Doppler-shifted such that the re-emerging photons are detected with respect to a first Doppler-shifted frequency or with respect to a second Doppler-shifted frequency. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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29. A process for deep-selective detection of spontaneous activities and general muscle activities in tissue comprising:
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emitting photons of a coherent and monochromatic electromagnetic radiation of a wavelength λ
1 in a range of a wavelength of green light such that the emitted photons penetrate the tissue through a first area in the tissue;emitting photons of a coherent and monochromatic electromagnetic radiation of a wavelength λ
2 in a range between 780 nm and 1000 nm such that the emitted photons penetrate the tissue through a second area in the tissue, wherein the wavelengths λ
1 and λ
2 are selected such that interference fringes do not occur;detecting the photons of the wavelength λ
1 as they re-emerge from the tissue in a third area of the tissue that is separate from the first area, wherein the photons are detected with regard to a first frequency shift and a first number or intensity of photons by means of an evaluation program or algorithm;detecting the photons of the wavelength λ
2 as they re-emerge from the tissue in a fourth area of the tissue that is separate from the second area, wherein the photons are detected with regard to a second frequency shift and second number or intensity of photons by means of an evaluation program or algorithm;determining based on the first and second frequency shifts, the first and second number or intensity of photons, and the location of the second area in relation to the third area and the location of the second area in relation to the fourth area muscle activity, a number of active muscles, and a physical position for each of the active muscles in the tissue; and a process for deep-selective detection of spontaneous activities and general muscle activities in tissue that utilizes an optical Doppler effect. wherein the first and second detected frequencies are both Doppler-shifted such that the re-emerging photons are detected with respect to a first Doppler-shifted frequency or with respect to a second Doppler-shifted frequency.
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30. A device for deep-selective detection of spontaneous activities and general muscle activities in tissue, comprising:
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a first radiation source for emitting photons of a coherent and monochromatic electromagnetic radiation of a wavelength λ
1 (600 nm≦
λ
1≦
1200 nm) through a locally defined first area of the tissue;a plurality of detectors for detecting and recording the photons re-emerging from the tissue at a set of areas of the tissue, the set areas are arranged at different distances from the first area, wherein the emerging photons are detected by the plurality of detectors with regard to a first frequency shift and a first number or intensity of photons using a detected interference pattern based on the photons emerging from the set of areas, a distance from the first area to an area of the set of areas that each photon emerges from the tissue t in connection with the frequency-shifted photons scattered on the tissue, wherein a deep-selective recording of muscle activity in the tissue is carried out based on the detected frequency shifts; at least one further radiation source which emits photons of a coherent and monochromatic electromagnetic radiation of a wavelength λ
2 into the tissue, wherein λ
2≠
λ
1;a plurality of additional detectors which also record the frequency-shifted photons scattered on the tissue of the original wavelength λ
1 with regard to frequency shifts and number or intensity of photons for deep-selective recording of muscle activity, wherein the wavelength λ
1 is in the range of a wavelength of green fight and the wavelength λ
2 is in the range between 780 nm and 1000 nm; anda process for deep-selective detection of spontaneous activities and general muscle activities in tissue that utilizes an optical Doppler effect, wherein the first and second detected frequencies are both Doppler-shifted such that the re-emerging photons are detected with respect to a first Doppler-shifted frequency or with respect to a second Doppler-shifted frequency.
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Specification
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Current AssigneeLutz Ott
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Original AssigneeLutz Ott
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InventorsOtt, Lutz
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Primary Examiner(s)Chen, Tse
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Assistant Examiner(s)Brutus, Joel F
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Application NumberUS10/592,517Publication NumberTime in Patent Office2,658 DaysField of Search600/473, 600/310, 600/322, 600/323, 600/475, 600/476, 250/339, 356/39, 356/41US Class Current600/473CPC Class CodesA61B 2562/0242 for varying or adjusting th...A61B 5/0059 using light, e.g. diagnosis...A61B 5/1107 Measuring contraction of pa...A61B 5/4519 Muscles A61B5/389, A61B5/22...
