Patent ID: 11883140
Assignee: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 10:
11. A calibrated measurement device for continuously, non-invasively, and directly measuring blood pressure, the calibrated measurement device comprising:
a frame:
a strap;
a balloon coupled to an internal surface of the strap, the balloon having an inflated state in which a controlled amount of pressure isolates a signal from an artery without compromising venous and lymphatic circulation or flow in other arteries of a limb containing the artery;
a camera mounted to the frame and spaced from the balloon; and
a sensor array mounted on a surface of the balloon to directly contact a skin surface and non-invasively monitor blood pressure, the sensor array and the camera detecting deformations in the skin surface caused by changes in artery size and shape during a heartbeat cycle, the deformations in the skin surface corresponding to blood pressure.