MO Milling Surgical Instruments Cleaning and Handling Instructions

content ( 𝐶𝑎𝐶𝑂3 > 120 mg/L), often referred to as hard water, is not

Cleaning and Handling of MO Milling Surgical Instruments

suitable for pre-cleaning, washing and rinsing the instrument. Softened, filtered, demineralized, or distilled water must be used during the procedures of cleaning/disinfection and autoclaving to minimize the

MO Milling single-use and re-usable surgical instruments are supplied clean and non-sterile. They must be sterilized before use. Re-usable surgical instruments must be properly re-processed.

The following

information will help assure the cleanliness and performance of the instruments. WARNINGS & PRECAUTION Follow instructions and warnings as issued by the manufacturers of any decontaminants, disinfectants and cleaning agents used.

Wherever

possible avoid use of mineral acids and, harsh/abrasive agents. No part of the process shall exceed 140°C. The cleaning procedure, to remove contaminants from the devices, must be done by immersing the device in room temperature neutral pH (7) cleaning agent. A cleaning agent can be an enzymatic cleaner, detergent

risk that chlorides react with the passive layer, leading to pitting corrosion.

CLEANING If not done immediately after rinsing, instruments should be submerged in a solution of water and neutral PH (7) cleaning agent. Ultrasonic Cleaning

The quality of the final cleaning process’ rinse water and the water used

For micro and delicate instruments, use manual cleaning. Instruments

for the generation of steam for the sterilizing shall comply with the

should be processed in a cleaner for the full recommended cycle time –

requirements in Table 1.

usually 5 to 10 minutes.

Flash sterilization is not recommended as this does not undertake a drying

Place instruments in an open position into the ultrasonic cleaner. Make

cycle, therefore commencing the process of corrosion.

sure that "sharp" (scissors, knives, etc.) blades do not touch other

Ethylene Oxide (EtO) and Hydrogen Peroxide Plasma are acceptable methods to sterilize stainless steel, titanium, aluminium and polymer instruments but are not recommended.

instruments. All Instruments have to be fully submerged. Do not place dissimilar metals (stainless, copper, chrome plated, etc.) in the same cleaning cycle.

Change solution frequently – at least as often as

manufacturer recommends. Rinse instruments after ultrasonic cleaning

Devices with long, narrow cannula, hinges and blind holes require particular attention during cleaning.

with water to remove ultrasonic cleaning solution. Automated Cleaning

LIMITATIONS OF RE-PROCESSING

Use only marked or validated washer-disinfector machines and cleaning

Repeated processing on devices made of stainless steel, titanium and

agents, following the manufacturer's instructions for use, warnings and

aluminium will not adversely affect them. Re-processing of standard

recommended cycles. Load instruments carefully, with any box joints and

polymers are limited by their heat resistance (Tg, dimensional stability)

hinges open and so that fenestrations in instruments can drain. Place

and their hydrolytic resistance in multiple sterilization cycles. Generally,

heavy instruments carefully in the bottom containers. Place instruments

DO NOT use high acidic (pH <4) or high alkaline (pH >10) products for

the end of life of an instrument is determined by normal wear and damage

with concave surfaces facing down.

disinfection or cleaning of stainless steel, titanium and aluminium, since

due to use.

or rinse aid. A cleaning agent should be biodegradable, non-corrosive, non-toxic, non-abrasive, low foaming, free rinsing and preferably in liquid form.

these can corrode, cause discoloration or stress fractures. Prolonged exposure to saline solution will lead to pitting and stress corrosion

Manual Cleaning

INSTRUCTION FROM POINT OF USE

Manual cleaning is not advised if an automatic washer-disinfector is

cracking. DO NOT immerse the used device in a physiological salt (NaCl)

If possible, soiled instruments should be placed in a holding solution

solution.

(combined disinfectant/enzyme solution) immediately after use and prior

Cleaners such as Isopropyl Alcohol, bleaches and peroxides may attach to the polymer chains of some thermoplastic resins and cause crazing, stress cracking or even breakage. Avoid strong acids and bases (Note: bases decompose forming formaldehyde) and strong oxidizing agents. Generally, semi-crystalline polymers will have better resistance to

to cleaning. Immediately after surgery, rinse instruments under warm (not hot) running water. Rinse should remove all blood, body fluids and tissue. The pre-treatment of a used instrument at the point of use, shall not compromise the subsequent cleaning and sterilization process, and shall not cause damage on it. PREPARATION FOR DECONTAMINATION

Water quality is a critical consideration in all stages of the reprocessing of

Disassemble where intended by trained staff only, without use of tools

the instrument. Attention should be paid to the quality of water that is

unless specifically provided by the manufacturer.

used for the pre-cleaning, washing and rinsing of the instrument, and for

instruments as soon as possible following use.

cleaning process and damage the instrument. Water with high mineral TD-008_05_CleaningAndHandlingOfMoMillingSurgicalInstruments

Using a sink dedicated for instrument cleaning (not used for hand washing), rinse excess soil from instruments (water temp >35°C). Keeping instruments submerged in water, use a brush to apply cleaning solution to all surfaces. Pay particular attention to serrations, teeth, ratchets and hinges always brush away from the body. Ensure hinged instruments are thoroughly cleaned in both open and close positions. Rinse instruments

common hospital cleaners than amorphous polymers.

dilution of cleaning agents. Water of poor quality can adversely affect the

available. If needed, use the following process:

thoroughly with clean water, so that water reaches all parts of the

Re-process all

instrument. Carefully hand dry or use industrial drying cabinet. INSPECTION The cleaning process should ensure that all soil is removed prior to the sterilization of the instrument. This will prevent compromising the sterilization process. After cleaning, check all surfaces, cannulations, Page 1 of 2