A-dec 500 Assistant’s Instrumentation
Quick Start Guide
A-dec’s standard assistant’s package includes syringe, HVE, and saliva
About the
Assistant’s
Instrumentation
ejector. Optional instruments may include an additional HVE. The
assistant’s vacuum instruments are fully autoclavable and have quick
disconnect attachments that remove easily for cleaning.
Left-Right
Conversion of the
Autoclavable HVE
and Saliva Ejector
Autoclavable HVE
and Saliva Ejector
Asepsis
The HVE and saliva ejector can be easily
converted for opposite-hand operation.
To convert the HVE or saliva ejector for
opposite-hand use, push the control valve
out of the HVE body, by pressing on the
small diameter side. Rotate the control valve
180°, then press it back into place.
The table shows the steps for HVE and saliva ejector asepsis.
1
3
1 - Cannula opening (for tip);
2 - Valve body;
3 - Control valve; 4 - Tailpiece
Step Action
Remove the tip from the valve body.
1
NOTE: Turn off the central vacuum before disconnecting the HVE or
saliva ejector.
To remove the HVE or saliva ejector body, separate the body from
the tubing by pulling it apart at the tailpiece, and removing the
2
control valve.
2
4
4
5
6
7
8
Copyright © 2004 A-dec Inc.
All Rights Reserved.
Clean and rinse the valve body and control valve using a mild
detergent, water, and the brushes that have been provide. Allow the
instruments to dry completely.
Heat sterilize the valve body and control valve for six minutes using
either of these methods: steam autoclave, or chemical vapor (275ºF
[135ºC] maximum temperature).
Apply a light coat of A-dec silicone lubricant on the O-ring seals of
the control valve.
CAUTION: Use only silicone lubricant when lubricating
instrumentation O-rings. Petroleum products will cause
permanent damage to the O-rings.
Reinstall the control valve in the valve body, and the tubing tailpiece.
Operate the HVE and the saliva ejector valves several times to verify
that they rotate smoothly.
86.0603.00
2003-12 Rev. A (04123.13)
Sterilizing the
HVE Tip
It is recommended that the stainless steel tips used on the HVE be heat
sterilized between patients using either of the following methods: steam
autoclave, or chemical vapor (275ºF [135ºC] maximum temperature; four
minutes at temperature). If you are using disposable HVE tips, be sure to
replace them with new tips between patients.
The table shows the steps for sterilizing the HVE tip.
Step Action
Remove the HVE tip from the HVE valve body.
1
Clean and rinse the HVE tip using a mild detergent and water,
2
then allow the tip to completely dry.
Sterilize the HVE tip using one of the recommended methods.
3
NOTE: A-dec HVE Cannula Opening:
Standard A-dec HVE – 0.435" ± 0.006" (11.05 ± 0.15 mm).
A-dec 15 mm HVE – .592" (14.8 mm).
If not using A-dec HVE tips, select a tip that is compatible with
your HVE cannula opening.
A-dec Saliva Ejector Cannula Opening:
A-dec Saliva Ejector – 0.265 ± 0.006" (6.73 ± 0.15 mm)
Select a tip that is compatible with your saliva ejector
cannula opening.
Solids Collector The solids collector aids in preventing solids from entering the central
vacuum system. At least twice a week, discard and replace the solids
collector screen. This is necessary to ensure proper suction from the central
vacuum, and to maintain proper treatment room asepsis.
The table shows the steps for sterilizing the HVE tip.
Step Action
Turn off vacuum, if vacuum is on, open the HVE control valve to
1
facilitate removal of the solids collector cap.
Remove the screen from the collector. The solids collector screen is
disposable. Discard following your local regulations.
2
CAUTION: Do not empty the screen into your cuspidor. Doing so
could plug the drain.
Insert a new screen in the solids collector and install the cap.
3
Limit Switch
Copyright © 2004 A-dec Inc.
All Rights Reserved.
If activated, the support link limit switch will interrupt the base down
motion and reverse the chair to prevent damage.
2003-12 Rev. A (04123.13)
86.0603.00