The FM series products used both ultrasound and ECG to provide continuous monitoring (recorded on paper charts), enabling clinical interpretation of changes in fetal heart rate during contractions. The original design was due to Frederick (Doug) Fielder who was Sonicaid's medical research director. Sonicaid developed a range of fetal monitors, notably the portable Doppler ultrasound products D102, D104 ("Pocket Sonicaid", winner of a Design Council Award for medical equipment in 1976 ), D205 and D206 which provided audible output of fetal heart sounds. Sonicaid is now a registered trademark of Huntleigh Healthcare. The word "Sonicaid" is in generic use for Doppler fetal monitors. The company also developed early ultrasound scanners. Sonicaid Ltd was a medical electronics company headquartered in West Sussex best known for its range of Doppler fetal monitors. Madison (WI): University of Wisconsin Hospitals and Clinics Authority c2019. ![]() Gainesville (FL): University of Florida Health c2019. UF Health: University of Florida Health.Columbus (OH): The Ohio State University, Wexner Medical Center Doppler Ultrasound. The Ohio State University: Wexner Medical Center.Use of Doppler Techniques (Continuous-Wave, Pulsed-Wave, and Color Flow Imaging) in the Noninvasive Hemodynamic Assessment of Congenital Heart Disease. Reeder GS, Currie PJ, Hagler, DJ, Tajik AJ, Seward JB.Radiological Society of North America, Inc. Department of Health and Human Services Heart Failure. National Heart, Lung, and Blood Institute.Department of Health and Human Services Echocardiography. Peripheral artery disease (PAD): Symptoms and causes 2018 Jul 17. Mayo Foundation for Medical Education and Research c1998–2019. Electrocardiogram (ECG or EKG): About 2019 Feb 27. Doppler ultrasound: What is it used for? 2016 Dec 17. Johns Hopkins Medicine: Health Library: Pelvic Ultrasound. These include sickle cell disease or preeclampsia, a type of high blood pressure that affects pregnant women. ![]() Your provider may suspect a problem if your unborn baby is smaller than it should be at this stage of pregnancy or if you have certain health problems.
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