Stopper device, medicament container, and method for mixing two substances in a medicament container

PT3817706TActive Publication Date: 2026-06-12VETTER PHARMA FERTIGUNG
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Patent Information

Application Number
PT2019739927T
Authority / Receiving Office
PT · PT
Patent Type
Patents
Current Assignee / Owner
Priority Date
2018-07-03
Filing Date
2019-06-28
Publication Date
2026-06-12
Estimated Expiration
2039-06-28

AI Technical Summary

Technical Problem

Conventional drug containers face challenges in safely storing and mixing unstable substances like powdered medications, as they require complex filling processes and are prone to pressure fluctuations, making it difficult to create multi-chamber systems, especially in ampoules or injection vials.

Method used

A stopper device with a stopper element and closure element that allows for separate, aseptic storage and mixing of substances, avoiding contact with siliconized inner walls, and enabling easy transition between sealed and mixed states without requiring a bypass, suitable for single and multi-chamber systems.

Benefits of technology

Ensures safe storage and easy mixing of unstable substances, allowing for aseptic handling and extended shelf life, while simplifying the filling process and enabling dual-chamber systems in containers like syringes and cartridges.

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