Blood flow measurement device

Blood flow measurement device with adjustable microwave transmission and reception spacing for depth calibration

This technology is a blood flow measurement device that uses an antenna unit at one end of a bar-type probe body to emit and receive microwaves to target blood vessels in the human body, adjusting the depth of the measurement point by controlling the spacing between the transmitting and receiving antennas.

Existing non-contact blood flow measurement methods struggle to accurately target measurement locations due to variations in blood vessel depth among individuals, and it has been difficult to adjust the position while maintaining a simple device structure.

This technology uses an antenna spacing adjustment unit to control the distance between the transmitting and receiving antennas, allowing the measurement depth to be calibrated to the target blood vessel. This enables accurate blood flow measurement with a simple structure, making it ideal for wearable and portable blood flow monitoring devices.

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Key Features:

• A probe comprising a bar-type probe body extending longitudinally and an antenna unit formed at one end of the probe body
• A transmitting antenna included in the antenna unit that emits microwaves toward a target blood vessel in the human body
• A receiving antenna that receives the microwaves transmitted from the transmitting antenna and reflected by the target blood vessel
• An antenna spacing adjustment unit that adjusts the distance between the transmitting and receiving antennas to calibrate the blood flow measurement depth to the target blood vessel

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This invention was developed with support from the Ministry of SMEs and Startups for the development of a microwave sensing module and monitoring system for measuring cerebral artery blood flow imbalance.

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