3M Ethylene Oxide Sterilizer Operation Recommendations and Results Analysis

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Other Products: Books,Toys,Linear Probes,Respiratory Therapy Equipment,Respiratory Therapy Equipment,Respiratory Therapy Equipment,Blood Transfusions Toys,Linear Probes,Probes,Thermometers,Sutures 1.Turn on the power switch of the air compressor and wait for the pressure to reach more than 3.5Kg/cm2.

2. Turn on the power switch of sterilizer and cold dryer.

3, open the door, put in the packaged goods, biological indicators (card), and gas tank, close the door.

4, select the temperature of 55 degrees or 37 degrees, set the ventilation time of 12 hours or more than 32 hours, open the printer.

5, close the door, press the Start button, the machine began to work.

6, the next day, see the ventilation time to meet the requirements, open the door, remove the items and air tank. Press Stop. The whole process is finished.

Note:

1, Regularly add distilled water, and put air compressor water, clean the door gasket every day.

2, Dispose of the gas canister after use as ordinary, non-incinerated waste. The reasons affecting the positive results of bio-indicators are briefly summarized as follows:

1. Failure of the sterilization process: Generally speaking, due to the sterilization parameters are set incorrectly, the sterilization process is affected by the mechanical failure of the sterilizer, etc., which can ultimately affect the positive biomonitoring;

Treatment of the advice: check the sterilization process monitoring data, instrument self-test code and other data that can be obtained instantly for reference

2. Bad factors in the packaging process: These include the influence of packaging materials and wrapping packaging techniques, etc. In terms of packaging materials, if the packaging material itself is affected, the packaging material will not be able to be used. In terms of packaging materials, if the packaging material itself exists to affect the relative humidity, adsorption of ethylene oxide gas and thus reduce ethylene oxide and other factors. In addition, the packaging skills of the factors that may lead to the package itself can not make ethylene oxide penetration, the relative humidity fluctuations, etc., may cause the whole load are monitoring the bio-indicator positive;

Treatment of the opinion: the use of new packaging materials, should be used in the package using bio-indicators and chemical indicators for sterilization test, monitoring indicators are qualified, the new packaging materials or unproven packaging materials can not be used. Validated packaging materials can only be used. Packaging techniques can also be tested in the same way, and can be packaged according to this method only after passing the test;

3. Undesirable factors in the loading of sterilizers: The loading of sterilizers is too tight, especially when combined with other factors (such as packaging materials and packaging techniques, etc.), which may lead to positive bio-indicators;

Treatment: Optimize the loading conditions, do not squeeze each other, large packages/packages should not be squeezed each other, and the packaging materials should not be used without validation. Do not squeeze each other, large/hard-to-sterilize packages should be placed around the basket, or on the surface;

4. Storage conditions of bioindicators: failure to strictly follow the requirements of storage environmental conditions in the product specification may lead to changes in the performance of the bioindicator prior to use, which may ultimately lead to a positive result in the use of the bioindicator;

Handling Opinion: if this factor is involved, correct the Storage environment;

5. Problems with the product quality of the bioindicator: production quality factors may also lead to problems with the quality of the bioindicator. Generally, when this kind of problem occurs, it is concentrated in one or several batch numbers;

Treatment advice: when this kind of problem occurs, please contact the local 3M sales representative directly, and after analyzing and approving the problem, the product can be replaced and corrected in accordance with the formal complaint process;

The above five points are the main factors that affect the bio-indicator in a common way, and the actual problem is due to the many factors that often need to be analyzed in a comprehensive way. analyze. Ethylene oxide, as a low-temperature gas sterilization method, is widely used in the sterilization of medical devices. The technical problems regarding the discharge of ethylene oxide after sterilization are summarized and analyzed as follows for reference:

1. Ethylene oxide is a gaseous sterilization, and is preferred to be discharged into the atmosphere in domestic and international operations. Relevant documents can be found in the "Technical Specification for Sterilization (2002) or the American National Standard ANSI/AAMI ST41;

2. The atmospheric emission of ethylene oxide gas should follow certain technical standards: there must be a special exhaust piping system, the exhaust pipe material must be impermeable to ethylene oxide, such as copper. There should not be any flammable materials and air inlet of the building such as door or window within 7.6m from the exhaust port; if the length of vertical part of the exhaust pipe is more than 3m, a water collector must be added, so as to prevent the exhaust pipe from having depression or loop to cause the water and gas to accumulate or freeze in winter, which will block the pipe; the exhaust pipe should be led to the outdoor, and be reversed downward at the outlet to prevent the water and gas from staying in the pipe wall or causing the pipe wall to be blocked; professional installation engineers must be hired. Professional installation engineers must be hired and the installation must be carried out in accordance with the requirements of the manufacturer of the ethylene oxide sterilizer;

3. After the ethylene oxide gas is discharged into the atmosphere, the local concentration of the gas at the outlet is similar to the sterilization concentration, but because of the huge space outside and the small size of the ethylene oxide molecule, the concentration will be diluted below the safe level very quickly. In the presence of water vapor and sunlight in the air, it will decompose into ethylene glycol, which will eventually decompose into carbon dioxide and water. The end product is not harmful to the environment.

4. In addition, the largest source of sterilization-related atmospheric emissions of ethylene oxide is industrial sterilization. Hospital sterilization is small, infrequent, and generally supplied by small cylinders designed for hospitals, which further reduces the atmospheric impact of ethylene oxide gas emissions.

From the 3M Encyclopedia Team - Hamilton He