Cleaning, Disinfection, Sterilization Procedure (i900)

The reusable tip is the part that is positioned in the mouth of patients during scanning, and is reusable for a limited number of times.
The tip needs to be cleaned and sterilized between patient uses to avoid cross-contamination.

 

1. Reusable Tip

1.1.Cleaning 

• Clean the tip immediately after use with soap water and a brush. We recommend using a mild dishwashing liquid. Make sure the mirror of the tip is completely clean and stain-free after cleaning. If the mirror appears stained or foggy, repeat the cleaning process and rinse thoroughly with water. Dry the mirror carefully with a paper towel.

 

1.2.Disinfection

• Clean the reusable tips with disinfectants containing 15% or less Isopropyl Alcohol (IPA) and dry them. 
  • Please refer to disinfectant product manual for proper use. 
  • Recommended disinfectants include: 
    • Caviwipes: Disinfect for 3 minutes and dry for 5 minutes
    • Caviwipes-1: Disinfect for 1 minute and dry for 5 minutes
    • Caviwipes-2: Disinfect for 2 minutes and dry for 5 minutes

• The tip should be cleaned manually using a disinfecting solution. After cleaning and disinfecting, inspect the mirror inside the tip to ensure there aren’t any stains or smudges.
• Repeat the cleaning and disinfection process if necessary. Carefully dry the mirror using a paper towel.

 

1.3.Sterilization

Autoclave Sterilization 

• Make sure to always seal the tip in 100% cotton gauze before autoclaving.
  If you autoclave an exposed tip, it will cause stains on the mirror that cannot be removed. For more information, refer to the autoclave manual.

Tip Sealing Method  Sealing the mirror section with 100% cotton gauze ensures protection against contamination, even under harsh sterilization conditions.	1. Stack 3 pieces of gauze (2"x 2", 8-ply).	2. Fold the stacked gauze twice to create a three-layered structure.
3. Fold up the gauze lengthwise by one-third.	4. Insert the thickened folded portion into the mirror section and ensure the mirror is fully sealed with the gauze, leaving no gaps.	5.Completion.

• Insert the tip into a paper sterilization pouch and seal it, making sure that it is airtight. Use either a self-adhesive or heat-sealed pouch.
• Sterilize the wrapped tip in an autoclave with the following conditions:
  
  • Sterilize for 10 minutes at 135°C (275°F) at gravity type and dry for 30 minutes.
  • Sterilize for 4 minutes at 134°C (273.2°F) at pre-vacuum type and dry for 20 minutes.
• Use an autoclave program that dries the wrapped tip before opening the autoclave.
• Scanner tips can be re-sterilized up to 150 times and thereafter must be disposed of as described in the disposal section.
• Autoclave times and temperatures may vary depending on the autoclave type and manufacturer. For this reason, it may not be able to meet the maximum number of times. Please refer to the user’s manual of the autoclave manufacturer you are using to determine whether the required conditions are met.

 

1.4 Disposal

 

2. Mirror

The presence of impurities or smudges on the tip mirror may lead to poor scan quality and an overall poor scanning experience.

In such situations, clean the mirror following the steps below:

① Disconnect the scanner tip from the handpiece.

② Pour alcohol on a clean cloth or cotton-tipped swab and wipe the mirror. Make sure to use alcohol that is free of impurities or it may stain the mirror. You can use either ethanol or propanol (ethyl-/propyl alcohol).

③ Wipe the mirror dry using a dry, lint-free cloth.

④ Make sure the mirror is free of dust and fibers. Repeat the cleaning process as necessary.

 

3. Handpiece

After treatment, clean and disinfect all other surfaces of the handpiece except for the scanner front (optical window) and end (air vent hole). Cleaning and disinfecting must be done with the device turned off. Use the device only after it is completely
dry.

The recommended cleaning and disinfecting solution is denatured alcohol (ethyl alcohol or ethanol) – typically 60 – 70% Alc/Vol.

The general cleaning and disinfecting procedures are as follows:

① Turn off the device using the power button.

② Unplug all the cables from the wireless hub.

③ Clean the optical window on the front end of the handpiece.

The optical window must be gently wiped with a cotton or soft cloth moistened with
alcohol.  

◼ Do not clean the optical window by pouring alcohol or cleaning solution directly into the optical window, it may seep inside the handpiece and cause a malfunction.

◼ Do not wipe by hand or apply excessive force.

◼ Medit is not responsible for any damage or malfunction that occurs during cleaning that does not follow the guidelines above.

④ Put the cover on the front of the handpiece after cleaning the optical window.

⑤ Pour the disinfectant onto a soft, lint-free, and non-abrasive cloth.

⑥ Wipe the scanner surface with the cloth.

⑦ Dry the surface with a clean, dry, lint-free, and non-abrasive cloth.

 

4. Other Components

• Pour the cleaning and disinfecting solution onto a soft, lint-free, and non-abrasive cloth.
• Wipe the component surface with the cloth.
• Dry the surface with a clean, dry, lint-free, and non-abrasive cloth.