DEVICE: BiDop 7 probe (00894912002692)

A photoelectric sensor designed to be applied externally to a body area (e.g., limb, fingertip, toe, sacral region) for the transcutaneous measurement of blood volume changes using light detection. It is intended to be connected to a parent device (e.g., limb plethysmograph, pressure ulcer risk assessment analyser) whereby volume changes are displayed graphically to represent blood flow/pulse, typically for vascular function assessment in a limb [e.g., measurement of toe brachial pressure index], or to assess a patient’s risk of developing pressure ulcers. Although similar to a pulse oximeter probe it is not capable of oxygen saturation measurements. This is a reusable device.