Resealable closure for infusion bags

Thermolast M materials are certified for medical applications in many countries (USP Class VI, USP 661, ISO 10993-5, -10 and -11, as well as a Drug Master File). The TPEs can be sterilised in hot steam up to 135 °C and are available in hardness grades between 35 and 45 Shore A. They have resealing properties, which makes ideally suited for infusion bag applications: As the TPE diaphragm is extremely elastic, it immediately seals the septum when the infusion line is removed from the bag.

"For this sophisticated medical product, I wanted to use the best available compounds. And these were available from Kraiburg TPE. With this partner, I knew that I could rely on the most stringent safety and quality standards," explains Javier Alcoreza, managing director of Matriplast S.A.

Manfred Lautenbacher, responsible at Kraiburg TPE for the Matriplast account, comments: "This cooperation with a company in Bolivia is an excellent example of the benefits of our global network of sales agencies. Quality made in Germany is in great demand with customers everywhere, and we can provide this across the world."

In contrast to a conventional septum made in rubber, TPE has the added advantage that it can be processed by two-component injection moulding bonded with PE and PP. There is no need for the manual assembly of the rubber bag closures, time and money can be saved while the risk of non-conforming bags is minimised. The new solution also does away with costly storage of the closure components, and contamination of the septum is not possible.