Method and a device for determining the hydration and/or nutrition status of a patient
First Claim
1. A method to determine a mal-hydration component, an adipose tissue component, and a lean tissue component of a patient, the method comprising the steps of:
- (a) determining chemical or physical properties of the patient;
wherein the chemical or physical properties of the patient are at least one of the whole body mass, the lipid mass and the total bone mineral content mass of the patient, and(b) deriving the mal-hydration component, the adipose tissue component and the lean tissue component on the basis of the determined chemical or physical properties and previously determined patient-independent values of a mass or volume fraction of water in lean tissue and a mass or volume fraction of water in adipose tissue, wherein the mal-hydration component, the adipose tissue component and the lean tissue component is the mass or volume of the patient.
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Abstract
The invention relates to the field of monitoring the hydration and/or nutrition status of a patient. According to the invention a method is provided to determine at least one of a mal-hydration component, an adipose tissue component and a lean tissue component of a patient comprising the steps of determining chemical or physical properties of the patient and deriving the at least one component on the basis of the determined chemical or physical properties of the patient and previously determined values of a mass or volume fraction of water in lean tissue and a mass or volume fraction of water in adipose tissue. The invention also relates to a device for carrying out the method according to the invention and to a computer program product to be used on such a device.
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Citations
15 Claims
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1. A method to determine a mal-hydration component, an adipose tissue component, and a lean tissue component of a patient, the method comprising the steps of:
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(a) determining chemical or physical properties of the patient;
wherein the chemical or physical properties of the patient are at least one of the whole body mass, the lipid mass and the total bone mineral content mass of the patient, and(b) deriving the mal-hydration component, the adipose tissue component and the lean tissue component on the basis of the determined chemical or physical properties and previously determined patient-independent values of a mass or volume fraction of water in lean tissue and a mass or volume fraction of water in adipose tissue, wherein the mal-hydration component, the adipose tissue component and the lean tissue component is the mass or volume of the patient. - View Dependent Claims (2, 3, 4, 5)
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6. A device for carrying out a method to determine a mal-hydration component, an adipose tissue component, and a lean issue component of a patient, the method comprising the steps of:
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(a) determining chemical or physical properties of the patient; and (b) deriving the mal-hydration component, the adipose tissue component and the lean tissue component on the basis of the determined chemical or physical properties and previously determined patient-independent values of a mass or volume fraction of water in lean tissue and a mass or volume fraction of water in adipose tissue, wherein the mal-hydration component, the adipose tissue component and the lean tissue component is the mass or volume of the patient; the device comprising a measurement and/or input unit configured to provide values for the chemical or physical properties of the patient to be determined, an evaluation unit configured to derive the mal-hydration component, the adipose tissue component and the lean tissue component on the basis of the determined properties of the patient and previously determined patient-independent values of a mass or volume fraction of water in lean tissue and a mass or volume fraction of water in adipose tissue, wherein the mal-hydration component, the adipose tissue component and the lean tissue component is the mass or volume of the patient, and a communication link between the measurement and/or input unit and the evaluation unit. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification