MedaSonics

Ultrasound Stethoscopes

MedSonics Model BF5A Operating & Service Instructions Rev Dec 2002

Operating & Service Instructions

2 Pages

7 CooperSurgical maintains a service facility which has the capability to promptly repair all products returned to the factory. Because special jigs, fixtures, and reference are required, repairs should not be attempted on the internal tuning adjustments and the piezoelectric transducer “crystal”. Instruments requiring repair in these areas must be returned to the factory for service. Prepaid insured shipment for factory service should be made to: Customer Service Manager CooperSurgical, 95 Corporate Drive, Trumbull, CT 06611  BLOOD FLOW ULTRASOUND STETHOSCOPE® Model BF5A  8 Certain replacement parts can be ordered by calling Customer Service at (800) 243-2974. WARRANTY It is important to return the warranty card supplied with your Doppler as soon as possible. Your MedaSonics Doppler is protected by a limited warranty. Specific warranty terms and conditions were included with your Doppler or may be obtained by calling Customer Service at (800) 243-2974. SPECIFICATIONS Ultrasonic frequency • 8 MHz Outputs • Two 2.5mm jacks to drive one or two headsets, one headset and a speaker or a tape recorder Controls • Volume control and push-button ON-OFF. Pressing the “ON” button turns the unit ON for approximately 3 minutes. Power Source • One standard 9 volt alkaline battery. Dimensions • 12.6cm x 6.4cm x 2.5cm (4.95” x 2.5” x 1.0”) Weight • 133gm (4.7 oz) with battery Construction • Rugged ABS plastic case, integral transducers, solid state circuitry SPARE PARTS LIST 125-0001-010 • Battery 150-0144-010 • Battery Connector 203-0765-010 • Battery Cover 101-0008-010 • Headset (SH3A) 200-0004-050 • Headset Cord 150-0033-010 • Headset Jacks  103-0001-010 • Headset Transducer 203-0764-010 • Knob 203-0786-010 • Screw Cover 200-0104-050 • Speaker Cable 243-0018-010 • Switch 218-0066-020 • Volume Control  OTHER PRODUCTS AVAILABLE Pocket Speaker • Tapletop Speaker Models SA2, SA3 & SA6 FetalCalc™ Speaker with Heart Rate Display Fetal Dopplers • First Beat® and FetalPulse Plus™ Doppler Systems Blood Flow Dopplers • CardioBeat®, Model FP3B, Model BF4B DoubleBeat™ • Multi-Use Doppler Versatone® D8 • Multi-Use Doppler System  MedaSonics is a division of CooperSurgical, Inc.  Part #054-0136-010 • Rev 12/02  95 Corporate Dr., Trumbull, CT 06611 Phone: (203) 601-5200 Fax (800) 262-0105 Toll Free: (800) 243-2974  Operating & Service Instructions  INTRODUCTION The MedaSonics ULTRASOUND STETHOSCOPE® Doppler Blood Flow Detector Model BF5A is a pocket-sized instrument featuring a high ultrasonic frequency and one of the smallest probe tips commercially available. It has been designed specifically for detecting blood flow in small arteries such as those of the face and digits. Clinical experience has demonstrated that Doppler ultrasound is a simple, non-invasive aid to the assessment of arterial and venous blood flow. The MedaSonics ULTRASOUND STETHOSCOPE is based on the Doppler shift principle. At the end of the instrument is a piezoelectric crystal of very low power ultrasonic waves. This crystal is located at the tip of the plastic cone. Ultrasonic waves are emitted at a frequency of approximately 8 MHz. Reflections occur at tissue interfaces and some of the backscattered ultrasound is returned to the recieving crystal. Reflections from moving blood will have their pitch shifted slightly. After arriving at the receiving crystal, these reflections are detected and greatly amplified. Further processing converts the Doppler-shifted ultrasound into audible sounds indicating blood flow. INSTRUCTIONS FOR USE 1 Spread a generous amount of ultrasound coupling agent on the body surface to be examined. A fluid coupling agent is essential for proper operation. Commercial preparations provide good coupling, however, a soap solution or even water can be used. Do not use alcohol as a coupling agent. A tube of commercial coupling agent is supplied with each instrument. 2 Plug headset or speaker into either output jack. Set volume control midway. Place the plastic probe tip on the site to be examined. Press side-mounted ON button. Adjust volume control as desired. Unit will remain on as long as button is depressed and for about 3 minutes after it is released. The BF5A is designed for one-handed operation, with the middle finger controlling the ON button and the index finger controlling the volume. 3 Place the probe tip on the surface being examined. Do not press hard or blood flow may be affected. Use sufficient fluid coupling medium so it is not necessary to press
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