Milestone STA - Purging Air from the System

BASIC
OPERATION
Manual Purge and AutoPurge™
Prior to making any injection, all of the air should be “purged” from the
microtubing and from the needle.
AutoPurge™ Operation
The STA System can automatically purge with the AutoPurge™ feature. When
enabled, each time a new cartridge is attached to the drive unit the plunger
automatically advances, moving the anesthetic through the tubing to purge the
air from the system. A small amount of anesthetic can be observed at the end of
the needle following a successful purge. The unit is preset at the factory to use
AutoPurge™ as the default.
To Use AutoPurge™
1. Load and attach a cartridge holder to the drive unit, twisting it ¼ turn
counter-clockwise.
2. The plunger will automatically advance. This will expel the air from the
tubing and from the needle. A small droplet of anesthetic at the tip of the
needle indicates a successful purging.
3. The Anesthetic Solution Volume Gauge will now be illuminated to FULL,
indicating the unit is ready to use.
Manual Purge Operation
If the operator desires not to use the AutoPurge™, it can be turned off, activating
the manual purge function. To manually purge the system, press the
AutoPurge™ button, indicator light is now turned off and the air is NOT
automatically purged from the tubing. Depress the foot pedal at which time the
drive unit automatically extends the plunger a preset distance to purge air from
the micro tubing and the needle.
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