Sterilization

Article 4.4.4.3 of the “Hospital Disinfection Supply Center Part III Cleaning, Disinfection and Sterilization Monitoring Standards” (WS310.3-2016) issued by the National Health and Family Planning Commission states: The monitoring content of hydrogen peroxide plasma sterilization includes three ways: physical monitoring, chemical monitoring and biological monitoring.

In order to verify whether the sterilization quality of the hydrogen peroxide low temperature plasma sterilizer meets the standard, it is very important to do a good job of monitoring the hydrogen peroxide sterilization. The hydrogen peroxide low-temperature plasma sterilizer launched by Heal Force is one of Heal Force’s star products. It has the advantages of short sterilization cycle time and convenient operation.

In addition, Heal Force’s hydrogen peroxide low temperature plasma sterilizer is also equipped with complete testing process software and consumables to meet the operational requirements of the above three sterilization testing links. Strictly abide by the sterilization quality monitoring standards to escort the improvement of sterilization quality.

Sterilization
HF-LTPS100A

Physical Monitoring

Monitoring items:
Monitor and record critical parameters for each sterilization cycle, such as chamber pressure, temperature, plasma power output power, and sterilization time.

Monitoring frequency:
Continuous monitoring of each batch.

Monitoring method:
Sterilizer automatically determines.

Result judgment:
Observe the progress and conditions of each sterilization stage through the display above the machine. After the sterilization is completed, the device will automatically print the sterilization process record, and the print record will show that the sterilization process has been “completed” or “abnormally terminated”.

HF-LTPS100A interface diagram

Chemical Monitoring

Monitoring items:
The chemical indicator outside the package should be used outside each sterilization product package as a sign of the sterilization process; the chemical indicator in the package should be placed in the most difficult sterilization position of each package.

Monitoring frequency:
Monitoring per package.

Monitoring method:
Chemical indicator card, chemical indicator strip on the side of the Tyvek sterilization bag

Result judgment:
Through the color change of the chemical indicator card and the indicator strip, it is judged whether the hydrogen peroxide has reached the complete penetration.

Low temperature plasma sterilization system chemical indicator card

It should be noted here that the in-pack chemical indicator cards we use are used to demonstrate the degree of exposure of the indicator to the hydrogen peroxide plasma during the sterilization process, which alone is not sufficient to prove the effectiveness of the sterilization process.

Biological Monitoring

Monitoring items:
By culturing the spores in the biological indicator, the sterilization effect of the sterilization process on the spores was judged.

Monitoring frequency:
At least once a day.

Monitoring method:

  1. After placing the biological indicator at room temperature, put it into a Tyvek bag, and place it in the most difficult to sterilize part of the hydrogen peroxide low-temperature plasma sterilizer, usually in the lower left or lower right corner of the lower layer items.
  2. After sterilization, take out the biological indicator and press down the top cover to seal the plastic tube with the top of the cover (isolate the inside of the indicator from the outside air).
  3. Squeeze the glass tube inside, and place it in a 56℃~58℃ incubator together with an unsterilized control tube.

Result judgment:
Put the biological indicator into the incubator, observe the culture result after 24 hours, and there is no discoloration after sterilization. Continue to cultivate for 24 hours. If there is no discoloration, it can be confirmed that the sterilization is successful.

Hydrogen peroxide low temperature plasma sterilization self-contained biological indicator

To sum up, the effectiveness of the sterilization process needs to be comprehensively judged from all aspects, especially the strict pretreatment of items, reasonable placement in the box, and strict physical, chemical indicator and biological indicator processes.

With the rapid development of minimally invasive and endoscopic surgeries, more and more surgical instruments with special materials and compact structures are used, and the sterilization requirements for various surgical instruments are gradually increasing. The quality monitoring process of the sterilizer, and the standardization of its use and management, can enable medical staff to better provide clinical services and escort the hospital to carry out surgery safely.

Sterilization quality monitoring is an important means of quality control in disinfection and sterilization work. For more than 30 years in the field of medical devices, Heal Force has always insisted on strengthening the awareness of sterilization quality monitoring and standardizing monitoring management. Its hydrogen peroxide low temperature plasma sterilizer was selected into the “Excellent Domestic Medical Equipment Product Catalog” in 2020. To provide customers with better cost-effective and higher quality products is the constant pursuit of Heal Force.

Learn more about Heal Force H2O2 Low Temperature Plasma Sterilization

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Application of Low Temperature Plasma Sterilization in hospital infection control management

Low Temperature Plasma Sterilization Principle and Application

Heal Force Low-Temperature Plasma Sterilizer is Included in an Outstanding Domestic Medical Equipment Product Catalog!

Infection Control: the role of sterilization and disinfection

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