System for Repetitive Measurements of Cardiac Output in Freely Moving Individuals
First Claim
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1. ) A cardiac output system for repetitive cardiac output measuring of a freely moving individual comprising:
- a) a dye calibration and delivery system (CDS) configured to be worn by the individual comprising;
i. a calibration station configured to hold at least one calibration cartridge and to draw blood from the individual; and
ii. a dye delivery station configured to hold at least one dye delivery cartridge and to administer a predetermined amount of dye to the individual'"'"'s blood stream.
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Abstract
A system for evaluating the cardiovascular system parameters using indicator dilution and non-invasive or minimally invasive detection and calibration methods are disclosed. Intravascular indicators are stimulated, and emissions patterns detected for computation of cardiac output, cardiac index, blood volume and other indicators of cardiovascular health.
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Citations
57 Claims
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1. ) A cardiac output system for repetitive cardiac output measuring of a freely moving individual comprising:
a) a dye calibration and delivery system (CDS) configured to be worn by the individual comprising;
i. a calibration station configured to hold at least one calibration cartridge and to draw blood from the individual; and
ii. a dye delivery station configured to hold at least one dye delivery cartridge and to administer a predetermined amount of dye to the individual'"'"'s blood stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. ) A cardiac output system for repetitive cardiac output measuring of a freely moving individual comprising:
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a) a dye calibration and delivery system (CDS) configured to be worn by the individual comprising;
i. a calibration station configured to hold at least one calibration cartridge and to draw blood from the individual; and
ii. a dye delivery station configured to hold at least one dye delivery cartridge and to administer a predetermined amount of dye to the individual'"'"'s blood stream;
b) a sensing device configured to be worn by the individual comprising;
i. at least one illumination source configured to rest against the individual'"'"'s skin and to excite the administered dye in the blood stream; and
ii. at least one photodetector configured to rest against the individual'"'"'s skin and to detect fluorescence intensity reflected from or transmitted by the illuminated dye; and
c) an external device configured to wirelessly communicate with at least the CDS and the sensing device, and to determine the cardiac output of the individual based on the detected fluorescence intensity and the information indicative of the concentration of the dye in the blood that was drawn from the individual. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. ) A computer readable medium having computer-executable instructions to cause a computer or computer-based system to repetitively measure cardiac output of a freely moving individual comprising:
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a) calibrating and dye delivery of a calibration and delivery system (CDS) that is worn by the individual comprising;
i. drawing blood from the individual into a calibration cartridge having a dye concentration; and
ii. administering a predetermined amount of dye to the individual'"'"'s blood stream;
b) sensing fluorescence intensity from the administered by a sensing device that is worn by the individual comprising;
i. illuminating the administered dye in the blood stream of the individual; and
ii. detecting the fluorescence intensity reflected from or transmitted by the illuminated dye; and
c) determining the cardiac output of the individual by an external device that communicates wirelessly with at least the CDS and the sensing device, based on the detected fluorescence intensity and the information indicative of the concentration of the dye in the blood that was drawn from the individual. - View Dependent Claims (48, 49, 50, 51, 52, 53, 54, 55, 56, 57)
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Specification