DEVICE: Hokanson (00817065022577)

A graphic recorder designed for determining and registering volume variations in the extremities (legs/toes and/or arms/fingers) as modified by the circulation of blood through them. It typically consists of flow and/or volume sensors and transducers attached to an electronic unit, which processes the data and displays the results. It may operate using one of several methods including venous occlusion (pneumatic), photoelectric, electrical impedance, or strain gauge. The device is typically used in peripheral vascular diagnostic investigations [e.g., for deep vein thrombosis (DVT) or arterial occlusive disease].

A mains electricity (AC-powered) electronic device, which may include internal rechargeable batteries, intended to receive an input signal (e.g., from a physiological amplifier, signal conditioner, computer) which it converts and transcribes onto paper so that the information is stored in the form of a permanent document (hard copy). It will typically include a paper chart driven at constant speed by a motor and a pen(s) that moves back and forth in response to the signal, a printing array (e.g., thermal or electrostatic), or another device for printing on paper. It may be stationary or portable and will typically be used in the absence of a built-in chart recorder.

A mains electricity (AC-powered) device assembly consisting of a desktop unit, a graphical display unit and an attached probe or interchangeable probes, designed to noninvasively locate and assess the extent of vascular flow restriction (e.g., clots, stenosis, mechanical damage) by measuring blood flow rate using ultrasound/Doppler/transit time technology. Clinical applications include venous/arterial flow screening (e.g., assessment of air embolism, atherosclerosis, varicose veins, venous thrombosis), ankle pressure index, and/or blood flow wave form recording.