Borosilicate glass sleeve for pen-type injector and preparation method thereof

Abstract

The invention relates to a piece of medical glass, in particular to a borosilicate glass sleeve for a pen-type injector and a preparation method thereof. The borosilicate glass sleeve is characterized by comprising the following chemical compositions: SiO2, Al2O3, B2O3, K2O, Na20, CaO, MgO, BaO and Fe2O3. The method comprises the following steps: (1), forming the medical neutral borosilicate glass pipe through a forming machine; (2), allowing the formed glass sleeve to be subjected to annealing in an electric annealing furnace; (3), then allowing the glass sleeve to be subjected to an appearance test; (4), finally, packaging and putting in storage. The method has the advantages that the formula and the preparation method ensure that the glass performance reaches A-level water resistance requirement; the respective content of silicon dioxide, aluminium oxide, diboron trioxide is high; the content of alkali metal oxide is low; and the product is ensured to have higher chemical stability, thermal stability and mechanical strength.

Description

technical field [0001] The invention relates to a medicinal glass, in particular to a borosilicate glass sleeve for a pen type injector and a preparation method thereof. Background technique [0002] For a long time, the injection products produced by Chinese pharmaceutical companies have been packaged in traditional packaging. The pen-type syringe is a new generation of injection packaging container that appeared in the international market in 2002. Its appearance better meets people's needs for easy use and safe medication. requirements, and will lead to epoch-making changes in the packaging of water injection and powder injection products and the way of clinical medication. [0003] There are two defects in traditional injection packaging: First, there are hidden dangers in the safety of patients' medication. Before the injection is used, when the operator breaks the ampoule, fine glass powder will be produced. These glass powders may be mixed with the medicine and cause...

AI Technical Summary

Problems solved by technology

[0003] There are two defects in the traditional injection packaging: First, there are hidden dangers in the patient's medication safety

Before the injection is used, when the operator breaks the ampoule, it will produce fine glass powder, which may be mixed with the medicine and cause harm to the patient; at the same time, when the injection is sucked into the syringe, the medicine is exposed to the air , prone to particulate and microbial contamination

Second, the use process is complicated and inefficient

[0004] In addition, traditional packaging will indirectly cause some social problems, such as a large number of disposable plastic syringes will form white pollution, and there is a danger of spreading diseases such as AIDS during use and recycling.