A-DEC 551STA (01) PDF DOCUMENT

The product models and versions for the A-DEC 551STA covered in this document are as follows:

*Equipment shown in the document may include optional features or accessories. Some products, versions, and options may not be available in certain regions.

If you have a chair with an attached A-DEC 551STA system, use the master toggle to turn on the power, water, and air. The master toggle is typically located on the delivery system, but may be on the support center or floor box on chairs without a delivery system.

If there is no power to the system, verify that the power button on the chair is pressed in. This button must be on for the master toggle to control system power.

To save energy and reduce the chance of air leaks, press the power button to turn off power at the end of the day and before longer periods of non-use.

For touchscreen and control pad use with the A-DEC 551STA, refer to the A-dec DS7/CP5i/CP5 Touch Controls Instructions for Use (p/n 86.0857.00).

For configuring connectivity features on the A-DEC 551STA, see the A-dec+™ Software Platform Instructions for Use (p/n 86.1030.00).

To install the A-dec syringe tip, push the tip in until you feel two clicks. To produce an air/water spray, press both buttons on the syringe simultaneously. For more detailed information on syringe usage and maintenance, please refer to your A-dec syringe Instructions for Use.

To convert the standard high-volume evacuator (HVE) and saliva ejector for left-handed operation:

1. Push the control valve out of the valve body.

2. Rotate the control valve 180 degrees.

3. Push it back into place.

NOTE: Be sure to reinstall the valve on the same side of the valve body. Otherwise, the HVE or saliva ejector will not operate properly.

You can adjust the instrument holders independently or as a set on the doctor’s and assistant’s side of the A-DEC 551STA.

1. Pull the holder, or holders, away from the control pad/handle.

2. Rotate to the desired position and release.

CAUTION: Twisting the holder without pulling it away from the adjacent one will damage the mechanism.

If your A-DEC 551STA has a chair-side vacuum system and auto-electric holders, lift the HVE or saliva ejector from its holder and open the valve to turn on the vacuum. To turn off the vacuum, return the instrument to its holder.

A-dec recommends using barrier protection for all applicable touch and transfer surfaces on the A-DEC 551STA. Touch surfaces are areas that come into contact with hands and can become points of cross-contamination. Transfer surfaces are areas that come into contact with instruments and other objects.

In the USA, barriers must be produced under the Current Good Manufacturing Practice (CGMP) as specified by the U.S. Food and Drug Administration (USFDA). For regions outside the USA, refer to the medical device regulations specific to your location.

NOTE: For proper use and disposal of barriers, see the barrier manufacturer’s Instructions for Use.

For recommendations on cleaning and chemical disinfection of surfaces where barriers are not applicable or have been compromised, please see the A-dec Equipment Asepsis Guide (p/n 85.0696.00).

A-dec recommends using ICX Renew® dental unit waterline shock treatment before you use the A-DEC 551STA system for the first time. For ongoing waterline maintenance, A-dec recommends a three-part protocol:

• Continuous use of A-dec ICX® waterline treatment tablets.

• Regularly monitor the water quality in your dental equipment.

• Shock treatment whenever the test results exceed your established water quality action level.

For complete details on how to maintain good water quality, see the appropriate Instructions for Use provided with your A-dec waterline maintenance products.

The solids collector on the A-DEC 551STA helps prevent solids from entering the central vacuum system. To ensure proper suction and maintain asepsis, you should discard and replace the solids collector screen at least twice a week.

WARNING: Infectious waste may be present. Follow asepsis protocol to prevent cross contamination.

To replace the solids collector screen:

1. Turn off the vacuum or open the HVE control valve.

2. Remove the solids collector cap.

CAUTION: Do not empty the screen into your cuspidor. Doing so could plug the drain.

3. Remove the solids collector screen and discard it according to your local regulations.

4. Insert a new screen in the solids collector and replace the cap.

NOTE: When you replace the solids collector cap, ensure that the keyed cutout faces the tubing (as shown in the manual), or it will cut off the vacuum flow.

To obtain replacement solids collector screens, contact your authorized A-dec dealer and reference the Kerr® Dispos-a-Trap,™ p/n 5512.

For the A-DEC 551STA HVE/Saliva Ejector, follow these asepsis protocols:

• NOTE: Vacuum lines should be flushed at the end of each day or more frequently according to your clinic’s protocols.

• If you use barriers to protect the main body of the HVE and saliva ejector, replace the barriers after each patient. Clean and disinfect these instruments at the end of each day or after each patient if the barriers have been compromised.

• If you do not use barriers, or if you perform oral surgery, always clean and disinfect these instruments after each patient.

To clean and disinfect the HVE and saliva ejector valve body assembly without disconnecting from the vacuum system:

CAUTION: Clean the valve body assembly as soon as possible after treating each patient. Do not allow blood and debris to dry on instruments. If you cannot clean it immediately, keep the valve body assembly moist.

NOTE: Use an intermediate-level EPA-registered hospital-grade disinfectant containing a tuberculocidal claim with one of the following compositions: high-dilution water-based phenolic formulation or quaternary ammonium compound with less than 25% isopropanol.

1. Remove the vacuum tip from the HVE or saliva ejector valve body assembly. Discard disposable vacuum tips.

2. Clean the valve body assembly to remove visible soil using a disinfectant wipe or spray solution. Keep the valve body assembly wet according to the manufacturer’s recommended contact time. Repeat, if necessary, until the valve body assembly is visibly clean.

3. Disinfect the valve body assembly using a new disinfectant wipe or spray solution. Keep the valve body assembly wet according to the manufacturer’s recommended contact time.

4. Allow the valve body assembly to air dry.

5. Operate the HVE and the saliva ejector valves several times to verify that they rotate smoothly.

To routinely maintain and sterilize the HVE and saliva ejector when disconnected from the A-DEC 551STA vacuum system (frequency determined by the user):

1. Remove the valve body assembly from the vacuum line by pulling it away from the tubing at the tailpiece.

2. Disassemble the valve body by pushing the control valve out of the valve body.

3. Clean soiled valve body components using a soft, low-lint wipe.

4. Prepare a warm (32-43°C [90-110°F]) detergent solution (neutral pH enzymatic detergent or alkaline non-enzymatic detergent), according to the manufacturer’s recommended instructions.

5. Soak soiled valve body components in the detergent solution for at least one minute or as long as the manufacturer’s instructions indicate (whichever is longer).

6. Inspect O-rings. Remove, discard, and replace if there are visible signs of damage.

7. Use a soft, nylon-bristle brush to scrub the exposed surface of the valve body components while submerged, and the interior lumen of the valve body.

8. Rinse the cleaned valve body components under flowing, warm (32-43°C [90-110°F]) potable water for a minimum of 30 seconds.

9. Allow valve body components to air dry.

10. Sterilize the valve body components according to the following:

• Dynamic air-removal sterilizers: 4 minutes at 132-135°C (270-275°F)

• Gravity-displacement sterilizers: 30 minutes at 121-123°C (250-254°F)

11. Allow the load to dry for 30 minutes before removing it from the sterilizer. Ensure the valve body components are completely dry before proceeding.

12. Prior to use, lubricate O-rings with A-dec silicone lubricant, and reassemble the valve body assembly. CAUTION: Use only silicone lubricant. Petroleum-based products will cause permanent damage to the O-rings.

13. Reinstall the valve body assembly on the tubing tailpiece.

14. Operate the HVE and the saliva ejector control valves several times to verify that they rotate smoothly.

Select tips that are compatible with your HVE and saliva ejector openings. Refer to the specifications for correct sizing.

CAUTION: Disposable HVE and saliva ejector tips are not sterilizable and should not be reused. Replace disposable HVE and saliva ejector tips after each use.

The system utilities for the A-DEC 551STA are located in the contoured floor box under your chair. These typically include the electrical outlet, as well as the system hookups for air, water, and vacuum. To access them, lift the cover up and off the floor box frame.

WARNING: Shock hazard. When you remove or replace the covers, take care not to damage any wiring or tubing. Verify that the covers are secure after you replace them.

The tip connection specifications for the A-DEC 551STA are:

• Standard 11 mm HVE: 11 mm (0.433″) diameter opening (for standard HVE tips)

• Large bore 15 mm HVE: 15 mm (0.591″) diameter opening (for large bore HVE tips)

• Standard 6 mm SE: 6 mm (0.236″) diameter opening (for standard SE tips)

The maximum mesh opening size for the Solids Collector Screen/Filter on the A-DEC 551STA is 0.047″ (1.194 mm) which is equivalent to 1200 µm.