Stainless steel portable pressure steam sterilizer standard operating procedures

1. Preparation:
1.1 Stacking: The articles to be disinfected are properly bandaged and left gapped with each other sequentially and placed on the sieve plate in the disinfecting barrel, which is favorable for the penetration of steam and improves the sterilization effect.
1.2 Add water: Add distilled or ionized water to the main body and add 3 liters of water. When using it continuously, add water after sterilization every time to avoid dry heat and major accidents.
1.3 Sealing: Place the sterilizing barrel into the main body, then insert the covered hose into the sterilizing barrel, and align the cover with the bolt groove of the main body in the convex bulge, and then tighten the nut in the orientation evenly and forcefully. Close to the subject.
1.4 Heating: Place the device on the power supply. At the beginning, the air release valve must be pushed to the vertical (open) position so that the air in the instrument can escape. When the steam in the device is blown out, it should be picked immediately. When the child pulls to the horizontal (closed) position, the pressure generated as the heat rises can be reflected on the table.
1.5 Sterilization: When the pressure in the device reaches the required range, the heat should be appropriately adjusted to maintain a constant pressure, and at the same time it starts to control the sterilization time according to different articles and packages.
1.6 Drying: For medical devices, dressings, utensils, etc. that need to be quickly dried, the deflation valve can be opened immediately after the sterilization is completed, so that the pressure steam in the device can be quickly discharged. After seeing the gauge needle return to zero position, Wait for 1-2 minutes, then open the cover and continue heating the unit for 10-15 minutes.
1.7 When the bottled solution is sterilized at the end of the sterilization, do not immediately discharge the steam inside the device. Otherwise, the solution in the bottle may violently boil and overflow due to pressure fusion, and even bottle burst. Therefore, the heat source should be pulled out first, from the natural cooling of the nuclear weapon to the pressure gauge pointer back to zero, and then wait a few minutes to open the air release valve and open the cover.

2. Note:
2.1 During the entire sterilization process, sufficient water must be provided in the device. As the water evaporates during heating, the water must be re-applied every time you are sterilized. Dry heat should never be allowed. Otherwise it can easily burn the body and even cause an explosion, causing a serious accident. For safety, operators must not leave the site.
2.2 Sterilized articles:
2.2.1 Because of the different types, volume, density, and thermal conductivity of the sterilized items, the sterilization time and pressure required are different. If the bulk density of the object is large and the thermal conductivity is poor, the sterilization time can be prolonged. In general, it is necessary to make the innermost temperature reach 121°C; and for a certain period of time, it can really play the role of sterilization. Sterilizer time and temperature and pressure comparison table:
Poison Sterilization Holding Time min Steam Pressure MPa Saturated Steam Relative Humidity °C
Rubber Category 15 0.105-0.11 121
Dressings 30-40 0.105-0.14 121-126
Instruments 15 points 0.105-0.14 121-126
Equipment category 10 0.105-0.14 121-126
Bottled Solutions 20-40 0.105-0.14 121-126
2.2.2 Different types of items should not be sterilized together.
2.2.3 The volume of sterilized items should not be too large or excessively tight. So as not to affect the penetration of steam.
2.2.4 Heat-resistant items and items that are corrosive to metals should not be sterilized.
2.2.5 Uncapped bottled solution. Before sterilization, apply a heat-resistant rubber stopper (cork stopper) to tightly close the bottle mouth, and then squeeze the stopper with several layers of gauze, and fix the stopper with a rope outside the bottleneck. .
2.2.6 When the sterilization begins, be sure to remove the air inside the device. Otherwise, the reading on the gauge will be the sum of the pressure of both air and water vapor. The result is that the pressure reaches the specified value and the temperature does not meet the requirement.
2.2.7 After the sterilization is terminated, rapid deflation, slow deflation and natural cooling can be performed according to the different properties and different requirements of the sterilized items.
2.2.8 If the sterilization article will not be damaged due to a sudden drop in pressure and temperature, and the article is to be dried after sterilization, the gas can be quickly deflated. After the pressure returns to “0” position, wait for one minute to open it. Cover and continue to heat for 5-10 minutes, then remove the item to dry it.
2.2.9 Sterilized articles are glassware. If they are deflated too quickly, they will cause severe vibration of the glassware. Rapid temperature changes will easily cause the glass to burst. Therefore, the deflation should be slow. After the pressure gauge slowly falls to the “0” position, the cover is opened a little, allowing the temperature inside the device to gradually decrease. After 15 minutes, the cover can be fully opened and items can be removed.
2.2.10 If the sterilized article is a capping bottled solution, such as physiological saline. If the pressure and temperature drop abruptly, it will cause the solution to boil violently, or even open the cork and burst the glass bottle. Should turn off the power first, allow it to cool naturally for 20-30 minutes, in order to make the temperature of the solution in the bottle drop below 100°C, and then release air. When the pressure gauge returns to “0” position, the cover is opened a little, After 10-15 minutes, the cover can be opened and the sterilized items removed.
2.2.11 Special emphasis should be placed on: Before the pressure is released, the cover must not be opened before the pressure inside the device has fallen to the “0” position. Otherwise, the pressure inside the device will be high, and the sterilization articles will be flushed out with the high pressure air flow. It may harm the human body and cause serious accidents.

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