The PU sensor uses a proprietary method and instrument to assess blood flow in the superficial tissue. The technique is based on Photoplethysmography (PPG), which is a procedure where the skin is illuminated, and the reflected light is measured. This is an established technology that is used in heart rate monitors (HRM watches) and other devices.(t04).
The PUsensor has a sensing unit that is built in to a thin, soft disc that is applied to the back. The device’s proprietary, patent-pending method allows medical professionals to evaluate blood flow with and without the application of the patient’s body weight. The medical instrument works independently, and the method does not require staff monitoring while in use. A built-in algorithm then evaluates the comparative measurements and generates an assessment of the patient’s risk profile based on blood flow.