Medical measuring device
First Claim
1. A device for determining a local glucose concentration, the device comprising:
- at least one optical measuring unit, wherein said at least one optical measuring unit produces oximetric measurement signals and plethysmographic measurement signals,an ECG unit, wherein said ECG unit detects an ECG signal by way of two or more ECG electrodes,a bioelectric impedance measuring unit comprising electrodes wherein said bioelectric impedance measuring unit detects bioelectric impedance signals,an evaluation unit, anda heat measuring unit comprising at least one heat sensor, wherein the heat measuring unit determines local heat production, wherein local heat production is a difference arising between an arterial temperature measured by the at least one heat sensor and a temperature the skin surface would reach in case of a perfect thermal insulation,wherein the ECG unit and the bioelectric impedance measuring unit have at least one common electrode,wherein the ECG unit, the bioelectric impedance measuring unit, the at least one optical measuring unit, and the at least one heat sensor are arranged in a common measuring head,wherein said evaluation unit is adapted to determine a local glucose concentration from a combination of;
the local heat production determined by the heat measuring unit,a local oxygen consumption determined from the measurement signals produced by the at least one optical measuring unit and the bioelectric impedance signals detected by the bioelectric impedance measuring unit, anda correction factor determined from the ECG signals detected by the ECG unit and the measurement signals produced by the at least one optical measuring unit.
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Accused Products
Abstract
The invention relates to a measuring device (1) for the non-invasive measurement of physiological parameters. The measuring device (1) is suited to detect and localize by way of self diagnosis diseases such as, for example, inflammations, tumors or arteriosclerosis. The invention proposes a measuring device (1) with at least one optical measuring unit (100) for the generation of oximetric and/or plethysmographic measuring signals, an evaluation unit (140) processing the measuring signals, and a unit (120, 130) for the acquisition of local tissue parameters such as fat content, water content and/or blood perfusion, with the evaluation unit (140) being designed such that at least one local metabolic parameter is determined, in particular the local oxygen consumption, from the signals furnished by the optical measuring unit and obtained from tissue parameters. Moreover, the measuring device (1) enables the non-invasive determination of the glucose concentration.
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Citations
38 Claims
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1. A device for determining a local glucose concentration, the device comprising:
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at least one optical measuring unit, wherein said at least one optical measuring unit produces oximetric measurement signals and plethysmographic measurement signals, an ECG unit, wherein said ECG unit detects an ECG signal by way of two or more ECG electrodes, a bioelectric impedance measuring unit comprising electrodes wherein said bioelectric impedance measuring unit detects bioelectric impedance signals, an evaluation unit, and a heat measuring unit comprising at least one heat sensor, wherein the heat measuring unit determines local heat production, wherein local heat production is a difference arising between an arterial temperature measured by the at least one heat sensor and a temperature the skin surface would reach in case of a perfect thermal insulation, wherein the ECG unit and the bioelectric impedance measuring unit have at least one common electrode, wherein the ECG unit, the bioelectric impedance measuring unit, the at least one optical measuring unit, and the at least one heat sensor are arranged in a common measuring head, wherein said evaluation unit is adapted to determine a local glucose concentration from a combination of; the local heat production determined by the heat measuring unit, a local oxygen consumption determined from the measurement signals produced by the at least one optical measuring unit and the bioelectric impedance signals detected by the bioelectric impedance measuring unit, and a correction factor determined from the ECG signals detected by the ECG unit and the measurement signals produced by the at least one optical measuring unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A method for determining a local glucose concentration comprising:
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measuring oximetric measuring signals and plethysomographic measuring signals by at least one optical measuring unit, measuring a bioelectrical impedance signal by a bioelectrical impedance measuring unit, determining a local heat production signal by a spatially resolved heat measurement carried out by a heat measuring unit comprising at least one heat sensor, wherein the local heat production signal is a difference arising between an arterial temperature measured by the at least one heat sensor and a temperature the skin surface would reach in case of a perfect thermal insulation, and the measurement signals of the at least one optical measuring unit, the bioelectrical impedance signal of the bioelectrical impedance measuring unit, and the local heat production signal of the heat measuring unit are processed by an evaluation unit, wherein the bioelectric impedance measuring unit, the at least one optical measuring unit, and the at least one heat sensor are arranged in a common measuring head, wherein a local oxygen consumption is determined by the evaluation unit from the measuring signals from the at least one optical measuring unit and the bioelectrical impedance signal from the bioelectrical impedance measuring unit, and wherein the local glucose concentration is determined by the evaluation unit from the local oxygen consumption and from the local heat production signal. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification