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Process and device for deep-selective detection of spontaneous activities and general muscle activites

  • US 8,204,577 B2
  • Filed: 03/10/2005
  • Issued: 06/19/2012
  • Est. Priority Date: 03/10/2004
  • Status: Expired due to Fees
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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