EO sterilized product forced desorption device and forced desorption method

A forced desorption and desorption technology, applied in water supply installations, sanitary equipment for toilets, buildings, etc., can solve problems such as differences in EO residues, and achieve the effect of improving safety and realizing risks.

Active Publication Date: 2017-12-08
上海威宁整形制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the desorption of the original EO is carried out by natural ventilation, its effect and effectiveness are directly affected by the environmental conditions of the stored product. Although this method has been verified, in the actual product release management, the residual amount of EO contained in the product is still relatively large differences, there are potential risks

Method used

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  • EO sterilized product forced desorption device and forced desorption method
  • EO sterilized product forced desorption device and forced desorption method
  • EO sterilized product forced desorption device and forced desorption method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 Shown, a kind of EO sterilized product forced desorption device of the present invention, it comprises heating air supply room 2, desorption room 5, exhaust air room 8, unpacking room 6; Desorption room 5 is connected with unpacking room 6, and between the two There is an entrance and exit door; the heating air supply room 2 is connected to the desorption room 5, and a blower fan 3 and a return air guide window 4 are arranged on the partition wall between the heating air supply room 2 and the desorption room 5. Among them, a row of return air The diversion window 4 is arranged on the upper part of the partition wall, and the three blowers 3 are arranged on the middle and lower part of the partition wall; on the partition wall between the desorption room 5 and the exhaust room 8, an exhaust device 9 and an exhaust guide window are arranged. 7. Among them, the air exhaust device 9 is arranged on the upper part of the partition wall, and a row of exhaust ...

Embodiment 2

[0067] Next, the function of the desorption device described in Example 1 is verified by desorption of EO sterilized products.

[0068] The sterilization process of our company's products is entrusted to an external company, and the method of "over" sterilization is adopted. The effectiveness of product sterilization has been verified and confirmed. The inner packaging of the product is in the form of a blister bowl and air-permeable paper sealing. The material used in the product is silicone rubber, which has strong adsorption to EO. During the sterilization process, the product has been desorbed by "vacuumizing" and ventilating, but there are still EO residues inside the product. Therefore, it is called "EO sterilized product". Now use the desorption device described in Example 1 to carry out forced desorption to the above-mentioned EO sterilized product.

[0069] Adopt the desorption device described in embodiment 1 to carry out the processing method of forced desorption ...

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Abstract

The invention discloses a forced desorption device and a desorption method for EO sterilized products. The device includes a heating air supply room, a desorption room, an exhaust room, and an unpacking room; a blower fan and a return air guide window are installed on the partition wall between the heating air supply room and the desorption room; Exhaust device and exhaust deflector window; heating oil tank is installed in the heating and air supply room; fresh air device is installed on the outer wall of the heating and air supply room. Desorption method: Put the product to be desorbed into the forced desorption device, automatically heat up to a certain temperature for heat preservation and desorption; then extract air through the exhaust device; ; After the ventilation is completed, start to heat up again, heat preservation and desorption, and pumping and ventilation, and repeat this until the residual EO in the product is fully analyzed. The invention can desorb the residual EO in the product to the standard limit in a short time, effectively remove the residual EO in the product, improve the safety of the product, and realize effective risk control.

Description

technical field [0001] The invention relates to a forced desorption device and a forced desorption method for EO sterilized products, that is, a device and method suitable for forced desorption of EO residues in products within a short period of time after the products are sterilized by EO. Background technique [0002] Ethylene oxide has the characteristics of strong penetrating power and no damage to sterilized items, so most items that are not suitable for sterilization by general methods can be sterilized and sterilized by ethylene oxide. It is currently widely used in the field of sterile medical devices. [0003] Ethylene oxide (EO) is a flammable, explosive and toxic gas with a molecular formula of C2H4O. Under certain conditions, it is easy to volatilize into gas (the smell threshold is 760mg / m~1064mg / m), and it can cause explosion when the concentration is too high (the minimum burning concentration is 3%). Ethylene oxide and its two by-products, chlorohydrin etha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L2/26B01D53/02
Inventor 仲伟军
Owner 上海威宁整形制品有限公司
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