Low temperature hydrogen peroxide sterilizer purification time is too long what is the cause of

Low-temperature plasma hydrogen peroxide sterilizer is the use of plasma and hydrogen peroxide sterilant for rapid sterilization of surgical instruments and medical devices, not only to improve the turnover rate of surgical instruments, but also to reduce the number of valuable instruments purchased. The sterilization process is kept at a low temperature in the sterilization bin, which is especially suitable for medical equipment supplies that are sensitive to moisture and heat, and can effectively reduce the loss of sterilized instruments. The equipment can be placed directly in the clean space to use, without exhaust, drainage devices, by-products for a small amount of water and carbon dioxide.

Plasma is a gas produced by the ionization of the gas by the positive and negative ions composed of ionized gas-like material, often regarded as in addition to solid, liquid, gas, the existence of the fourth state of matter. When a gas is acted upon with *energy*, it becomes a plasma with ionic factors. As the number of positive and negative ions continue to cancel out, the plasma becomes electrically neutral.

Low-temperature plasma sterilization process will have many factors affecting the final sterilization effect, if not handled properly, will lead to sterilization failure, both increased workload and waste of time.

1, instrument cleaning is not *: blood and other impurities on the instrument residue, will affect the sterilization effect of low-temperature plasma hydrogen peroxide sterilizer.

The instruments should be cleaned before sterilization in accordance with the relevant provisions of the "hospital disinfection supply center cleaning and disinfection technology code of practice".

2, the instruments are not dry enough: hydrogen peroxide is soluble in water, wet instruments will be too much consumption of hydrogen peroxide in the sterilization chamber, reducing the concentration, resulting in sterilization failure.

To check the cleanliness and dryness of the items to be sterilized, and use the sterilization bag single sealed package, or into the sterilized instrument box, wrapped in a double layer of non-woven fabric.

3, sterilization of instruments loaded improperly: stacked instruments, instruments too long or contact with the bulkhead door, will affect the sterilization effect.

The sterilization bag should be loaded with instruments one by one, single-layer flat, do not overlap. Metal instruments can not be in contact with the side wall of the sterilization chamber, the distance from the wall of the sterilization chamber should be more than 5cm.

4, the sterilization system's own factors: due to the equipment's own system failure to sterilization failure.

Check whether the equipment performance is good before sterilization, set up sterilization operation program. Sterilization process carefully observe the monitoring screen temperature and machine operation, in case of failure, immediately stop sterilization.

5, hydrogen peroxide liquid quality is not qualified or expired: hydrogen peroxide solution should be stored at room temperature in a cool place away from light. Staff should replace the hydrogen peroxide solution in a timely manner, and marked with the date of replacement.

6, the indicator card does not change color: if you put the indicator card will be close to the plastic side of the bag, in the sterilization process, hydrogen peroxide can not touch the indicator card color change strip, the indicator card does not change color, or the indicator card in the air placed in the air for too long, although in the expiration date, but has been oxidized or moisture, then the sterilization does not change color.

The indicator card should be kept away from light to prevent oxidation, and when used, it should be gently clamped with small tweezers and placed in a bag to prevent contamination.