Cuffless blood pressure sensor can be designed into smartphones: Page 2 of 2

December 02, 2019 //By Jean-Pierre Joosting
Blood pressure sensor designed into smartphones needs no cuffs nor calibration
The V-sensor from Leman Micro Devices (LMD) is a tiny device that can easily be built into a smartphone to provide blood pressure measurement to medical accuracy without a cuff or the need for calibration.

LMD’s unique and patented solution uses the same principle as a cuff but acts on the fingertip. Its V-Sensor module instructs the user to press harder or softer to occlude the arteries of the tip of the index finger and detects it optically using a pulse oximeter. The V-Sensor is small enough and cheap enough to be built into every mobile phone and is fully engineered for production in smartphone quantities. Its accuracy for both Systolic and Diastolic blood pressure measurement complies with international standard ISO 81060-2: mean error < 5 mmHg and standard deviation < 8 mmHg. With no personal calibration, V-Sensor has demonstrated accuracy for systolic blood pressure (SBP) of mean error -0.4 mmHg, standard deviation 7.2 mmHg, and for diastolic blood pressure (DBP) of mean error -0.2 mmHg, standard deviation 6.0 mmHg, both well within the deviation allowed by the ISO standard.

Mark-Eric Jones, CEO, comments: “By creating our unique technical solution – the V-Sensor – in a device that can be built into every smartphone as well as wearables, we bring massive health benefits because we give users medically-accurate blood pressure measurement that is truly cuff-less and calibration-free.  V-Sensor with our e-Checkup software will save lives.”

www.leman-micro.com


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