Autoinjector Testing System: Device Changeover and System Alignment
Bluehill® Universal uses simplified test types that empower users to develop and change method parameters with ease, while offering the flexibility to readily accommodate future devices without requiring Instron’s support.
Users simply select the required functional tests — cap removal, injection, and safety check of the needle shield — and enter the parameters. The system automatically runs the tests in the appropriate sequence, optimizing test time and ensuring consistency. Pre-loaded templates are included with the software, making it fast and easy for a user to create a new device method and begin testing.
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When testing auto injectors, alignment and fixture design have a direct impact on the variability of cap removal force data. Instron's auto- injector testing fixtures are designed to simplify alignment, minimize side loading during cap removal, and support a range of established device geometries while offering the flexibility to easily accommodate customized or non-standard devices. The cap removal fixture consists of a base and insert aligned with the systems grips and cross- head to ensure loading occurs along the test axis. The base can be equipped with a series of interchangeable cap removal inserts that fit a range of commercially available auto- injector devices. Each insert has been carefully designed to ensure proper engagement of the cap for removal without imparting unnecessary side loads that influence maximum force data. Secured by three thumb screws, the cap removal inserts can be easily swapped out to accommodate new devices. The simple design makes it easy to machine non-standard inserts, offering the flexibility to support future designs of auto injector devices. Because the cap removal base is fixed in place and common between inserts, there's no need to realign the system every time a different device is being tested. In the case when realignment of the system is required, the procedure using the included alignment rod is simple and repeatable. The system uses pneumatic side acting grips to interact with the device under test. The upper grips serve as the primary contact point holding the device throughout the test and feature a set of reversible jaw faces that are optimized to support common industry device geometries. The lower grip serves two functions. first to automatically straighten the device after insertion and secondly to accommodate button activated devices. The grip and fixture design of the latest generation auto injector testing system simplifies alignment, reduces variability in test results, and increases the flexibility and efficiency to test multiple device types. Instron, the difference is measurable.
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Autoinjector Testing System
Instron’s latest generation Autoinjector Testing System can perform full functionality testing on a wide range of drug delivery devices — such as needle shield and button-activated devices, as well as safety syringes.
Autoinjector Testing System: Simple Test Methods
Bluehill Universal uses simplified test types that empower users to develop and change method parameters with ease, while offering the flexibility to readily accommodate future devices without requiring Instron’s support.
CT6 Cobot Configured for Auto-Injector Testing
Instron’s® CT6 can be configured as an automated solution for the required testing of auto-injection devices — providing the benefits of automation without the additional complexity of a fully automated testing system. Designed to accommodate auto-injectors with varying geometries, this system allows you to measure a variety of critical data points including cap removal, activation force, injection time, injection mass/volume, and lock out force of the needle shield — all within a single test method.
Autoinjector Testing System: Root Cause Analysis
Instron’s Autoinjector Testing System uses a high-resolution video camera, along with the machine vision camera, to provide critical visuals to aid in root cause analysis when a device failure occurs.
