Electronic unit for identifying the localised haemorrhoidal arteries by means of acoustic signals. Part of the A.M.I. HAL/RAR System.The A.M.I. HAL-II Electronic System is a Doppler-based device. It is powered by a DC voltage source (rechargeable batteries or 12 V adapter). The A.M.I. HAL-II Electronic System generates electrical signals, calculates differences between the wavelength of outgoing and reflected electrical signals, and generates an acoustic Doppler signal.Together with auxiliary A.M.I. devices (A.M.I. HAL Handle, Probe and Sleeve) the A.M.I. HAL-II Electronic System serves for the detection of haemorrhoidal arteries and enables manual ligation of detected arteries, as well as mucopexy of prolapsing haemorrhoidal mucosa.
A hand-held, battery-powered device assembly consisting of 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, and the vascular states of partially severed extremities), ankle pressure index, and/or blood flow wave form recording.