EDAN F2 F3 F6 F9 US Transducer 8 ultrasound crystals 1 Mhz pink label cable MS3-109301(D) REF 02.01.109301 MPN 02.01.109301017 (01)06944413805484 (21)H22101060151

► Brief Introduction

The US Transducer (ultrasound transducer) combines functions of emitting and receiving ultrasounds in one device. This transducer produces a stream of inaudible, high frequency sound waves which penetrate into the body and bounce off the organs inside. It detects sound waves as they bounce off or echo back from the internal structures and contours of the organs. The movement of the organs produces the Doppler Effect, and this movement can be measured and described by measuring the echo.

In fetal monitoring, the ultrasound transducer produces a stream of sound waves which penetrate into the maternal abdomen and bounce off the fetal heart. Then the transducer receives the echoes and transfers them to the monitor, which turns the signal into fetal heart beating sound and fetal heart rate trace.

Therefore, placement of the transducer is critical to ultrasound fetal heart monitoring

► Introducing the TOCO Transducer

1. US Transducer Sensor (Pink Labeled)

2. Transducer Cable

3. Transducer Connector

► Testing US Transducers

1. Switch on the monitor.

2. Connect the US transducer to the fetal monitor.

3. Hold the transducer with one hand, and gently touch the center of the transducer with the other hand in the frequency of 2 times per second.

► Monitoring Procedure

1) Placing Transducer Belt

Place the transducer belts across the bed, ensuring that the belt will be around the abdomen when it is fastened. Lay the patient on the bed.

Alternatively, the patient can take a sitting position. Arrange the belt around her abdomen.

2) Determining the Transducer Position

- Determine the fetal position using Leopold’s maneuvers.

- Search for the location of the fetal heart using a stethoscope or a fetoscope. The best fetal heart signal can be obtained through the fetal back.

- During parturition, the fetal heart moves downward as the labor progresses. It is recommended to move the transducer along with the fetus.

3) Acquiring Fetal Heart Signal
Apply a certain amount of acoustic gel on the transducer and move it slowly around the fetus site. Find at least 2 or 3 sites, and choose the one where the clearest, most sonorous and steady fetal heart sound is heard.
4) Fixing the Transducer
Wrap the abdomen with the belt over the transducer. Fix the transducer by pushing its buckle through the overlapping section of the belt.
Make sure the belt fits the patient snugly but comfortably. Meanwhile, fetus heart beat sound is heard; the FHR trace and numeric are displayed. During long-time monitoring, the gel may dry out as the transducer moves around. Add more gel in time if it is inadequate.
5) Confirming that the Fetus is the Signal Source
Ultrasound Doppler technology is utilized to observe the fetal heart rate externally, there are possibilities that maternal heart rate signal is mistaken for FHR signal. It is highly recommended to confirm that the fetus is the signal source continuously. You can feel the maternal pulse at the same time. If the maternal heart signal is misidentified as the fetal heart signal, Repositioning of the transducer is needed.

Thank you for your time! If you are interested in EDAN F2 F3 F6 F9 US Transducer 8 ultrasound crystals 1 Mhz pink label cable MS3-109301(D) REF 02.01.109301 MPN 02.01.109301017 (01)06944413805484 (21)H22101060151.