Spencer Technologies develops and sells products dedicated to noninvasive ultrasound monitoring of the brain such as digital transcranial doppler (TCD) and the Marc probe fixation headframe.

We provide versatile, compact, and reliable Doppler ultrasound systems, from pocket Dopplers to complete vascular laboratories. Whether you practice in a mobile, office-based or hospital-based environment you will find a Parks Doppler that provides the capabilities you are looking for.

Medical Ultrasound Doppler Systems, both transcranial (TCD) and vascular, and Systems for Neurophysiology ...

Only Dopplers with built-in recorders. Listen to, record and email baby's heartbeat as early as 8-12 weeks. Featuring Soft-Touch probes, large display and theatre-quality speakers.

DOPPLER ULTRASOUND Principle The Doppler effect is a change in the frequency of a wave, resulting from motion of the wave source or receiver , or in the case of a reflected wave, motion of the reflector. In medicine, Doppler US is used to detect and measure blood flow, and the major reflector is the red blood cell. The Doppler shift is dependent on the insonating frequency, the velocity of ...

Sonomed - Manufacturer of ultrasound medical diagnostic equipment ...

Manufacturer of Ultrasonic Doppler equipment including PFM1 Fetal Monitor for single or twin fetus, PD1 series Pocket Fetal dopplers with built in fetal heart rate display, BiDi1 Vascular Bi-Directional Dopplers , PD1v Vascular Pocket Dopplers.