Body fluid sensing

By applying thermal stimulation and thermal imaging on the surface of the tissue, thermal signals are extracted to determine body fluid flow information, solving the complex and invasive problems of blood flow measurement in the prior art, and early detection of varicose veins, Raynaud phenomenon, deep vein thrombosis, etc. The possibility of the condition provides non-invasive and accurate measurement methods.

CN119174599APending Publication Date: 2024-12-24KONINKLIJKE PHILIPS NV
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Patent Information

Application Number
CN202410811412.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-06-22
Filing Date
2024-06-21
Publication Date
2024-12-24

AI Technical Summary

Technical Problem

The prior art is complex for blood flow measurement and requires expert clinical operation. Some methods are invasive, making it difficult to detect early symptoms such as varicose veins, Raynaud phenomenon and deep vein thrombosis.

Method used

Using a thermal stimulus generator and thermal imaging subsystem, thermal signals are extracted to determine body fluid flow information by applying thermal stimulus on the surface of tissue and performing thermal imaging, providing a non-invasive, simple method for blood flow and other body fluids. Flow measurement.

Benefits of technology

It enables accurate measurement of blood flow and body fluid flow without expert operation, provides the possibility of early detection of varicose veins, Raynaud phenomenon, and deep vein thrombosis, improving the feasibility and user experience of diagnosis.

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Abstract

A device, such as a personal care device, comprises means for applying a thermal stimulus (hot or cold) to a location or region above or below a tissue / skin surface, and thermal imaging means for acquiring a thermal image of a tissue region spatially displaced from the application location of the thermal stimulus. A signal trace of the thermal stimulation applied at the displaced imaging location is detected, for example as a function of time, and this information is used to determine bodily fluid flow information.
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