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- The detector determines pregnancy by locating amniotic fluid in the uterus. It uses the phenomenon of ultrasonic wave reflection. When pressed to the animal’s skin, the probe sends an ultrasound beam which is reflected from uterine horn filled with fluid and returns to the probe, causing a change of signal generated by the device.
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Pump, Rechargeable Vacuum-Manual Pulse Pump Dansha Farms Improved 12 Volt PATENT US9,635,830 B2