When the glass ampoule is filled with liquid, it must be quickly melted at high temperatures and then sealed, so that a small mountain is formed on the mouth of the bottle and a negative pressure is formed in the bottle. When the bottle is opened, there will be a "bang" and "pop" sound, which is emitted by the air being hit by the air flow in the bottle for a moment. Because of the negative pressure in the bottle, both the grinding wheel and the sand bar will leave many fine particles in the scratch area, so it is very dangerous to use the grinding wheel and sand bar to open the cap.
Due to the difficulty of opening and the susceptibility to accidents, (a defective ampoule or improper handling can break the cap when the ampoule is opened, causing injury to medical staff and causing glass shards to fall into the liquid, causing contamination.) When the ampoule is opened, the liquid can be contaminated due to the glass particles and the particles of the grinding wheel). Although it is no longer popular, its advantages are irreplaceable, such as:
1. Colorless and transparent (without any impurities);
2. Low expansion coefficient and high heat resistance;
3. It has a physical strength sufficient to withstand the high pressure difference generated in the hot pressure disinfection process;
4. Good chemical stability, PH value does not change;
5. Low melting point, easy to melt;
6. No bubbles, no pittings and sand particles
Therefore, it has great applications in the market and in hospitals.
Glass ampoules are: one is an ordinary ampoule and the other is collapsible. A bottle with blue or white spots on the mouth and a dent at the bottom is a collapsible bottle, if not, it is a normal bottle. The average ampoule bottle is made of low borosilicate glass or soda-lime silicate glass, while the collapsible ampoule bottle is generally made of medium and high borosilicate glass. Medium borosilicate glass and high borosilicate glass have good heat resistance and chemical stability. It is impossible for ordinary Angelina to break it with brute force, but to carve a cut at the mouth of the bottle, and then break it in the direction of the scratch. Before opening, use a grinding disc to scrape a scratch on the neck of the bottle, clean the neck of the bottle, and then push the neck up to let all the liquid flow into the bottle, and then break the neck of the bottle. At present, most hospitals and clinics use grinding wheels and sand bars to carve the bottleneck. However, grinding wheels and sand strips are susceptible to bacterial infection, which will cause contamination of the chemical solution, so various medical institutions have strict regulations on the disinfection and use of grinding wheels and sand strips.
Easy to fold ampoule ampoule, the mouth of the bottle is sealed with an open flame to isolate it from the air, the neck of the bottle is marked, under the action of pressure, the mouth of the bottle will break, so that the liquid can be taken out. There is a groove under the blue or white dot at the neck of the neck, indicating the position that the manufacturer has cut in advance, and it can be broken by applying force in the opposite direction of the scraper.
Because of the pressure of the glass, it is easy to break, so it is difficult to fold, so it is necessary to use a bottle opening tool to cut and break the pressure of the glass to make it easier to open. Remember, if the bottle is difficult to break, then it cannot be broken with force, as it is likely to scratch. Breaking a collapsible bottle in half is a very technical task. Twisting three to five at a time is very simple, but it is not very comfortable to twist into more than a hundred. Nurses in many hospitals, when opening the sleeping bottle, will use a corkscrew to make sure it is safe.
In the new national standard GB2637-1995, all ampoules used for water needles are curved neck foldable ampoules. In order to prevent glass fragments and particles from entering the ampoule when the ampoule is broken, causing contamination of the liquid medicine, SDA has forced the introduction of an easy-to-fold ampoule with a curved neck, and painted with colored spots, color rings, and nicks on the curved neck, which can be broken without a file, which can prevent glass fragments from contaminating the liquid medicine and is easy to operate. The color ring is easy to fold the ampoule, and the point notch is easy to fold the ampoule.
From the photo above, you can see that there is a blue spot on the bottle, which is a sign, and the other colors are the same. Fingers pressed here, the neck of the bottle can be broken with force, if there is no grinding wheel, you can do this, but be careful, use force, do not force force, otherwise it will cause the bottle to explode.
Holding the bottle in his left hand and holding the bottle in his right hand, he pulled it out hard, and he couldn't break free. If it's correct, it's easy to break open, but wearing gloves will allow you to exercise your strength and direction. His movements can be bigger, faster and more decisive, and he is more likely to get hurt.
Small ampoules of less than 5 ml can be broken by hand, and if they exceed 5 ml, they can be wrapped in gauze. In order to avoid scratching himself, Da'an pinched with a lot of force, just like the two arms will be separated for a long distance after being broken, but even so, there is no guarantee that they will not be scratched, if the force is too strong, the potion will splash out, if there is a bandage, the effect will be better, the action will be naturally reduced, and there will be no potion splashed out. The color does not refer to the direction of the break, but to either direction.
