A new methodology to continuously, directly and non-invasively measure blood pressure either based on Ultrasound emitter (or Force Sensor). Blood flow is monitored by detection of variation of the Magnetic Field while artery is temporarily subjected to Ultrasound Waves opposing the blood flow (Ultrasound waves can be replaced by placing the Force Sensor on the artery with a manually variable pressure).This new sensing methodology is based on a "direct" measure of pressure eliminating the need of the pressure servo loop. It can be applied to several arteries such as the Brachial and Radial arteries. It can also be easily extended to allow sensing of echo Ultrasounds for determination of blood flow and artery diameter using Doppler effect and then providing a consistent picture of blood circulation in the artery i.e. Pressure, Blood Flow, artery diameter and macroscopic evaluation of Blood Viscosity.