Telemetric Sensing of Blood Flow Rates by Passive Infrared Temperature Sensing
OwnerBiswajit Das, Frank van Breukeleninventors
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Abstract
Systems enable a method of determining the rate of flow of a bodily fluid through a vessel in a live patient by: positioning at least two separate passive infrared sensors at two points along a length of the vessel; sensing local temperature changes at the two points along the vessel to generate signals of the local temperature changes from each passive infrared sensor; a processor receiving the signals and quantifying the local temperature changes at the two points; and the processor executing code to determine blood flow rate in the vessel from the local temperature changes quantified by the processor at the two points.
Claims13
A method of determining the rate of flow of a bodily fluid through a vessel in a live patient comprising:
- positioning at least two separate passive infrared sensors at two points along a length of the vessel;
- sensing local temperature changes at the two points along the vessel to generate signals of the local temperature changes from each passive infrared motion detector;
- a processor receiving the signals and quantifying the local temperature changes at the two points;
- and
- the processor executing code to determine blood flow rate in the vessel from the local temperature changes quantified by the processor at the two points.
A system for measuring fluid flow in a vessel of a mammalian body, the system comprising:
- at least two miniaturized passive infrared motion sensors, each sensor having a contact surface of between 0.2-1.0 mm (width)×0.4×1.2 mm (length);
- each sensor being in communication link with a processor;
- the processor configured to execute code converting signals from the sensors regarding temperature of fluid in the vessels to an indication of speed of fluid motion in the vessel.
Dependencies are inferred from the claim text.