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5.
Prepare the Doppler for Use
5.1
Battery Insertion / Replacement
Disconnect the Doppler from other equipment before removing the battery cover.
Insert a suitable tool into the recess, release the
clip and gently lever off the battery cover.
•
Use only alkaline LR6 (AA) non-rechargeable batteries.
Note: If the Doppler will not be used for an extended period, remove the batteries.
Low Battery Indication
When the batteries becomes depleted, a flashing battery symbol
batteries should then be replaced for reliable operation.
5.2
Probe Connection
To connect the probe, align the arrow on the connector with the slot on the probe and push together firmly.
To disconnect the probe, pull the connector from the probe. DO NOT pull the cable.
The following probe types are available:
VP4XS
4 MHz ± 1% for deep lying vessels
VP5XS
5 MHz ± 1% for deep lying vessels and
oedematous limbs
VP10XS
10 MHz ± 1% for specialist superficial
applications.
6.
Operation
Turn the On/Off/Volume control to the On position.
Bi-directional blood flow rate and direction are indicated by the waveform displays (4 levels in each direction)
along with the Probe frequency. Blood flow is audible in the loudspeaker.
Clinical Use
Apply a liberal amount of gel on the site to be examined. Place the probe at 45° to the skin surface over the
vessel to be examined. Adjust the position of the probe to obtain the loudest audio signal. High pitched pulsatile
sounds are emitted from arteries while veins emit a non-pulsatile sound similar to a rushing wind.
After the optimum position has been found, keep the probe as still as possible. Adjust audio volume as required.
Insert the batteries according to the diagram,
observing polarity.
will appear on the display. The
VP8XS
8 MHz ± 1% for peripheral vessels
EZ8XS
8 MHZ ± 1% "Widebeam" for
peripheral vessels.
PA8-HG
Intraoperative Probe adaptor
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