DDU tester DPIs

for dry-powder inhalersbenchtop

The basic requirements for Dry Powder Inhalers DDU testing are the same as for MDI testing, namely DUSA, mouthpiece adapter, vacuum pump and flow meter. However, a critical flow controller (e.g. Critical Flow Controller TPK 100i) to measure the pressure drop across the device and control the flow conditions during testing is also required. This is because most DPIs are passive breath-actuated devices which rely on the patient’s inspiration rather than a propellant for dose aerosolisation and delivery. The testing of DPIs is further complicated by the fact that different inhalers provide varying degrees of flow resistance, i.e. some require more effort to inhale through than others. DDU Over the Entire Contents In the case of DPI reservoir type devices, tests should be carried out throughout the life of the inhaler i.e. dose uniformity over the entire contents. Inhaler Support Accessory Designed for larger Dry Powder Inhalers (DPIs) and particularly multi-dose disc-shaped devices, this new fixture provides a stable, airtight seal with an Induction Port or DUSA tube without the need for manual support. Its robust construction and spring-loaded retaining mechanism ensure seamless compatibility with Copley’s Mouthpiece Adapters, enhancing repeatability of DPI testing for generic development and bioequivalence studies.