Combined packaging bag and sterilizing-drying method

Abstract

The invention relates to a combination packaging bag for sterilizing and drying medical articles and methods of sterilization and dryness. The invention is characterized in that the combination packaging bag comprises an outer packaging bag and an inner packaging bag sleeved in the outer packaging bag. The methods of sterilization and dryness comprise the following steps: putting the inner packaging bag of medical articles to be sterilized into the outer packaging bag; sealing the outer packaging bag by hot pressing; putting the outer packaging bag into a sterilizing stove to sterilize through ethylene epoxide; and then heating up temperature, pumping out vacuum, and charging with nitrogen in the stove; standing for forty minutes; discharging gas, and recovering normal pressure; repeatingfive to ten times in a way; displacing out residual ethylene epoxide and moisture in the combination packaging bag; taking out the outer packaging bag which is sterilized, and combing and sealing theoverlap section between the inner packaging bag and the outer packaging bag, thereby obtaining sterilized and dry medical articles. The invention can exclude the residue amount between the moisture and ethylene epoxide in the combination packaging bag, thereby achieving required standard, and further preventing the medical articles from invalidating due to high moisture during effective lifetime process.

Description

technical field [0001] The invention relates to a method for sterilizing and drying a combination packaging bag used for sterilizing and drying medical supplies. technical background [0002] At present, some implantable absorbent products, such as absorbable sutures, absorbable hemostatic materials, etc., are easy to hydrolyze, so after these products are sterilized, not only have strict requirements on the residual amount of EO, but also have strict requirements on the moisture content in the packaging bag. The content is also very strict. If the moisture content in the package exceeds the standard after sterilization, the product will be hydrolyzed by the moisture in the package before use, resulting in product failure. In order to solve this problem, waterproof materials must be used for packaging, but the EO in the product cannot be released in this way, resulting in excessive EO residues. In order to solve these two problems at the same time, a special packaging metho...

AI Technical Summary

Problems solved by technology

At present, the conventional treatment method is to first release the EO residue of the sterilized product, and then use a dryer or an oven to dry the package. Although these methods can dry the product moisture, the effect is not obvious and very Difficult to control, often the moisture does not meet the standard

Images