Method and system for non-invasively monitoring fluid flow in a subject
First Claim
1. A monitoring system for monitoring fluid flow in turbid medium, the system comprising:
- a processor utility which is connectable to an acoustic generator associated with one or more acoustic ports and is operable for generating signals S0 to activate said one or more acoustic ports for generating acoustic radiation of a certain frequency range centered at a frequency F0 to irradiate a region of interest and is connectable to at least one light output port associated with one or more light detectors for receiving light of at least one wavelength λ
from the region of interest including light tagged by said acoustic radiation, the processor utility being configured and operable for analyzing the signals S0 and data indicative of the received light including light tagged by the corresponding acoustic radiation and determining correlation between said signals S0 and said data indicative of the received light, said correlation being informative of a measure of fluid flow in the medium.
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Accused Products
Abstract
A monitoring system is presented for monitoring fluid flow in turbid medium. The fluid flow monitoring system comprises a processor utility which is connectable to an acoustic generator associated with one or more acoustic ports and is operable for generating signals S0 to activate said one or more acoustic ports for irradiating a region of interest with acoustic radiation of a certain frequency range centered at a frequency F0 and is connectable to at least one light output port associated with one or more light detectors for receiving light of at least one wavelength λ from the region of interest including light tagged by said acoustic radiation. In some embodiments, the processor utility is configured and operable for analyzing the generated signals S0 and data indicative of the received light including light tagged by the corresponding acoustic radiation and determining correlation between said signals S0 and said data indicative of the received light, said correlation being informative of a measure of fluid flow in the medium.
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Citations
23 Claims
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1. A monitoring system for monitoring fluid flow in turbid medium, the system comprising:
- a processor utility which is connectable to an acoustic generator associated with one or more acoustic ports and is operable for generating signals S0 to activate said one or more acoustic ports for generating acoustic radiation of a certain frequency range centered at a frequency F0 to irradiate a region of interest and is connectable to at least one light output port associated with one or more light detectors for receiving light of at least one wavelength λ
from the region of interest including light tagged by said acoustic radiation, the processor utility being configured and operable for analyzing the signals S0 and data indicative of the received light including light tagged by the corresponding acoustic radiation and determining correlation between said signals S0 and said data indicative of the received light, said correlation being informative of a measure of fluid flow in the medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- a processor utility which is connectable to an acoustic generator associated with one or more acoustic ports and is operable for generating signals S0 to activate said one or more acoustic ports for generating acoustic radiation of a certain frequency range centered at a frequency F0 to irradiate a region of interest and is connectable to at least one light output port associated with one or more light detectors for receiving light of at least one wavelength λ
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12. A monitoring system for monitoring fluid flow in a turbid medium, the system comprising:
- a processor utility which is connectable to an acoustic generator associated with one or more acoustic ports and is operable for generating signals S0 to activate said one or more acoustic ports for irradiating a region of interest with acoustic radiation of a certain frequency range centered at a frequency F0 and is connectable to at least one light output port associated with one or more light detectors for receiving light of at least one wavelength λ
from the region of interest including light tagged by said acoustic radiation, the processor utility being configured and operable for analyzing data indicative of the received light including light tagged by the acoustic radiation;
identifying in said data at least one of the following light intensity peaks;
a peak around said frequency F0, a peak around a harmonic of said frequency F0; and
determining a measure of the fluid flow according to parameters of said at least one peak. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
- a processor utility which is connectable to an acoustic generator associated with one or more acoustic ports and is operable for generating signals S0 to activate said one or more acoustic ports for irradiating a region of interest with acoustic radiation of a certain frequency range centered at a frequency F0 and is connectable to at least one light output port associated with one or more light detectors for receiving light of at least one wavelength λ
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22. A monitoring system for monitoring a fluid flow in a turbid medium of a subject, the monitoring system comprising:
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at least one light input port associated with one more light sources for generating light of at least one wavelength λ
to illuminate a region of interest in the subject;an acoustic generator associated with at least one acoustic port, the acoustic generator being operable for generating signals S0 to activate said at least one acoustic port for irradiating a region of interest with acoustic radiation of a certain frequency range centered at a frequency F0; at least one light output port associated with one or more light detectors for receiving light of at least one wavelength λ
from the region of interest including light tagged by said acoustic radiation and generating data indicative thereof; anda processor utility which is connected to the acoustic generator and to the at least one light output port for receiving data indicative of the generated signals S0 and said data indicative of the received light, the processor utility being configured and operable for carrying out at least one of the following; (i) analyzing said data indicative of the generated signals S0 and said data indicative of the received light for determining correlation between them, and generating output data informative of a measure of the fluid flow in the region of interest in the subject; and (ii) analyzing said data indicative of the received light including light tagged by the acoustic radiation;
determining data indicative of a power spectrum of the received light;
identifying in said power spectrum at least one of the following light intensity peaks;
a peak around said frequency F0, a peak around a harmonic of said frequency F0; and
determining a measure of the fluid flow according to parameters of said at least one peak.
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23. A control unit for use in monitoring fluid flow in a turbid medium, the control unit comprising a processor utility configured for communication with an acoustic generator for receiving data indicative of signals S0 corresponding to signals which activate one or more acoustic ports for irradiating a region of interest with acoustic radiation of a certain frequency range centered at a frequency F0 and for communication with and one or more light detectors for receiving data indicative of detected light of at least one wavelength λ
- including light tagged by said acoustic radiation, the processor utility being configured for processing and analyzing said data indicative of the detected light and generating output data indicative of correlation between said signals S0 and said data indicative of the detected light, said correlation being informative of a measure of the fluid flow in the medium.
Specification