A non-invasive system and method for measuring skin hydration of a subject

A non-invasive, object-measuring technology, applied in the direction of diagnostic recording/measurement, application, medical science, etc., capable of solving interference, analyzing signal interference, etc.

Inactive Publication Date: 2011-10-05
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, non-invasive analytical techniques must be both sensitive and specific for the specific analyte
When applied to humans, the enormous complexity of organisms can lead to interference of the analytical signal by other substances and by other variables that change over time or vary from person to person

Method used

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  • A non-invasive system and method for measuring skin hydration of a subject
  • A non-invasive system and method for measuring skin hydration of a subject
  • A non-invasive system and method for measuring skin hydration of a subject

Examples

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Embodiment Construction

[0032] Specifically, you can use figure 1 The system shown to measure glucose concentration comprises an infrared source 2 generating an infrared beam 3 and an infrared detector 6 for detecting the transmitted radiation. The system also includes a window housing 5 , a window 4 and a thermistor 7 embedded in the window 4 . The signal generated by the detector 6 is indicative of the glucose concentration and is sent to a processor 8 for determining the glucose concentration.

[0033] The system is applied to a subject part 1 (eg upper lip, tongue, earlobe or finger) and a thermistor 7 is placed close to the skin surface.

[0034] The window 4 and the thermistor 7 are applied in such a way that they come into contact with the skin of the subject part. The thermistor is used in the transient mode, i.e., for a period of time sufficient to bring the thermistor's temperature, and thus its resistance, above the thermistor's initial equilibrium to a fixed The incremental rate suppli...

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PUM

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Abstract

A non- invasive system and method for measuring skin hydration of a subject comprising a thermistor (7) used in transient mode to obtain a measurement of the thermal conductivity of the skin of the subject and a processor (8) for determining a skin hydration value from the thermal conductivity measurement. The system for measuring skin hydration may be comprised in a non-invasive system for detecting blood analyte concentration, preferably glucose, including a spectroscopic device having e.g. an infrared source (2) which generates infrared beam (3) and detector (6) for detecting transmitted radiation through portion 1 (e.g. finger) of a subject. The system may also include skin hydrator (9) which moisturises the skin connected in a control loop to the system for measuring skin hydration. The system for detecting blood analyte concentration may include a photoacoustic device or a metabolic heat conformation device.

Description

technical field [0001] The present invention relates to a non-invasive system for measuring skin hydration of a subject. The term skin is used to refer to the skin and external mucous membranes. [0002] In a particularly advantageous embodiment of the invention, said system is comprised in a device for detecting blood analyte concentrations. The skin hydration value can be used to delay the measurement of the blood analyte concentration until the skin hydration reaches some predetermined value, or the skin hydration value can be used to correct for hydration during the determination and calculation of the blood analyte concentration. Background technique [0003] Concentration determination of most blood components or analytes, such as glucose or cholesterol, is currently done by invasive means. A blood sample is collected and transferred to a laboratory or handheld device where it is analyzed. Non-invasive analysis of blood components has many advantages over invasive t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/00A61B5/103
CPCA61B5/14546A61B5/14532A61B5/01A61B5/4869A61B5/0095A61B5/441
Inventor A·范格什M·范赫佩恩
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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