Device, system and method for in-vivo detection of bleeding in the gastrointestinal tract
First Claim
1. A system for determining the type of a patient'"'"'s bleeding profile over time, said system comprising:
- an in-vivo sensing device comprising;
a housing comprising a sensing head in the form of a gap, which remains in contact with bodily fluids and through which the fluids pass when the device is within the GI tract;
said sensing head comprising a plurality of illumination sources positioned on a first side of the gap, each illumination source for repeatedly irradiating the fluids within the gap at a different narrow band wavelength, and at least one light detector photodiode positioned on the opposite side of the gap and facing the illumination sources, for detecting light irradiated by the illumination sources and which passed through the fluids;
a transmitter for transmitting a plurality of values representing the light detected over time by the at least one light detector to an external receiver;
a memory unit for storing the values received by the external receiver;
a processing unit configured for processing the stored values and for;
converting the values to a series of blood concentration values measured consecutively over time, andidentifying a bleeding event based on the blood concentration values as a function of time and based on a comparison of the blood concentration values to a threshold.
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Accused Products
Abstract
In-vivo devices, systems and methods for the detection of blood within in-vivo bodily fluids. The methods include irradiating in-vivo fluids passing through a gap in a housing of an in-vivo device introduced to the GI tract of a subject with a plurality of illumination sources positioned on a first side of a gap; detecting with at least one light detector positioned on the opposite side of the gap and facing the illumination sources, light irradiated by the illumination sources; transmitting a plurality of values representing the light detected over time; converting these values to blood concentration values over time, and comparing the blood concentration values to a predetermined threshold value. Based on the comparison, the method includes determining the type of bleeding profile, such that if a plurality of blood concentration values measured consecutively is above the threshold value, the bleeding profile indicates bleeding.
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Citations
20 Claims
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1. A system for determining the type of a patient'"'"'s bleeding profile over time, said system comprising:
an in-vivo sensing device comprising; a housing comprising a sensing head in the form of a gap, which remains in contact with bodily fluids and through which the fluids pass when the device is within the GI tract; said sensing head comprising a plurality of illumination sources positioned on a first side of the gap, each illumination source for repeatedly irradiating the fluids within the gap at a different narrow band wavelength, and at least one light detector photodiode positioned on the opposite side of the gap and facing the illumination sources, for detecting light irradiated by the illumination sources and which passed through the fluids; a transmitter for transmitting a plurality of values representing the light detected over time by the at least one light detector to an external receiver; a memory unit for storing the values received by the external receiver; a processing unit configured for processing the stored values and for; converting the values to a series of blood concentration values measured consecutively over time, and identifying a bleeding event based on the blood concentration values as a function of time and based on a comparison of the blood concentration values to a threshold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for determining the type of a patient'"'"'s bleeding profile over time, said method comprising:
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irradiating in-vivo fluids passing through a gap in a housing of an in-vivo sensing device introduced to the GI tract of a subject with a plurality of illumination sources positioned on a first side of a gap, each illumination source for irradiating at a different narrow band wavelength; detecting, with at least one light detector photodiode positioned on the opposite side of the gap and facing the illumination sources, light irradiated by the illumination sources; transmitting a plurality of values representing the light detected over time; converting said values to blood concentration values over time; identifying a bleeding event based on the blood concentration values as a function of time and based on a comparison of the blood concentration values to a predetermined threshold value. - View Dependent Claims (17, 18, 19, 20)
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Specification