Gima G2002 Manual De Instrucciones página 7

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Before using your Pocket Doppler for the first time, please read these operating instructions carefully.
We remind you that the use of this product is reserved to medical personnel only.
CONTROLS AND INDICATORS G2002-V2000-V2005
Dopplers G2002-V2000-V2005 are supplied with an alcaline battery 9 V. To insert or change the
battery, slide off the battery cover (A) and withdraw the battery and connector. Carefully remove the
battery from the connector and snap the new battery into position taking care to ensure correct orientation.
Place the battery and connector back into the battery compartment and refit the battery cover.
To switch on the doppler press the switch located on the front of the doppler unit (B).
The doppler will stay on for approximately 5 minutes or until the on/off switch is pressed again.
With the unit on, the volume can be adjusted by the rotary volume control on the edge of the unit, (D).
The fetal heart signal is detected using the 2MHz fetal transducer (E).
A Yellow LED (C) indicates the condition of the battery, when illuminated constantly, battery replacement
is recommended. The LED will flash momentarily when the unit is first turned on.
CONTROLS AND INDICATORS D2003/D2005
The D2003/D2005 operates in a similar manner to the G2002. The unit is turned on by pressing the on
/ off control (B), the system micro-controller monitors the detected signal and turns the unit off when
no signal has been detected for approximately the last 2 minutes.
The LCD displays battery condition and fetal heart rate (F). A battery icon (C) is displayed when the
battery requires changing. The fetal pulse icon (G) flashes at approximately the same rate as the detected
fetal heart.
Serial RS232 connection can be made by attaching the optional serial link cable to socket (H) - contact
supplier for further details.
FETAL HEART DETECTION
The G2002 / D2003 / D2005 can be used to detect the beating fetal heart from approximately the 10th
week of gestation, though this will vary between patients.
Apply a liberal amount of coupling gel to the area just above the symphysis pubis and position the
transducer (E) face flat against the abdomen. Tilt the transducer slowly until the fetal heart is heard in
the loudspeaker or headset (in early pregnancy the headset helps to eliminate ambient noise making it
easier to detect the weaker signals).
Later on in pregnancy the best signals are generally found higher up the abdomen. The same procedure
should be adopted as above.
Avoid sliding the transducer over the abdomen as this results in an increase in the background noise
and makes it more difficult to detect the fetal heart sounds.
PLACENTA AND UMBILICAL CORD
The G2002 / D2003 / D2005 may be used to locate the position of the placenta, thus aiding in the early
diagnosis of placenta praevia or eliminating placental site where amniocentesis is to be performed.
The sound from the placenta is an indistinct swishing, caused by bloodflow in many vessels. There is
no distinct beat pattern to the sound. The vessels of the umbilical cord give rise to a higher pitched
sound than the normal fetal heart, with pulsations at the fetal rate.
VASCULAR BLOOD FLOW DETECTION
Doppler V2000 can be used to survey the blood flow both in surface blood vessels and in the deepest
arteries by means of two probes, 5 MHz (green ring) and 8MHz (grey ring).
Doppler V2005 has the same applications, but it is equipped with fixed 5 MHz probe.
To obtain the best signal, apply a liberal amount of coupling gel to the area of the vein or artery under