A hand-operated component of a noninvasive vascular ultrasound system intended to be placed on the surface of a patient's body to measure the flow of blood in the underlying vasculature using ultrasonic/Doppler/transit time technology. It may include single or multiple element transducer configurations that convert electric voltages into an ultrasound beam reproducing movement and flow graphically, typically with sound. The device is available in various frequency capacities (e.g., 4, 5, or 8 MHz). It may also be used to detect the foetal heartbeat. This is a reusable device.
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