Overview
EN ISO 11608-5:2023 - Needle-based injection systems for medical use - Requirements and test methods - Part 5: Automated functions (ISO 11608-5:2022) defines safety, performance and test-method expectations for needle-based injection systems that include automated functions (referred to as NIS‑AUTO). Adopted by CEN in 2023, this part of the ISO 11608 series complements ISO 11608-1 and focuses on the automated behaviours of medical injection devices (it does not cover remote communication capabilities).
Key topics and technical requirements
The standard addresses automated functional areas and associated test methods, including:
- General requirements for NIS‑AUTO design and safety verification.
- Medicinal product preparation and needle preparation procedures to ensure correct administration.
- Priming and dose setting: requirements to verify correct priming and accurate dose selection.
- Needle extension, insertion and retraction, including injection depth control when depth is determined automatically by the device.
- Dose delivery and dose accuracy testing (test methods specified to confirm delivered dose matches intended dose).
- Needle hiding and shielding before and after injection to reduce needlestick risk.
- Recording of device functions and disabling the NIS‑AUTO (safety and user awareness requirements).
- Detailed test methods and test conditions for verifying actuation, injection time, retracted position, shielding performance and more.
- Informative annexes with rationale and example test methods (e.g., dose accuracy at intended injection depth).
The document emphasizes verifying outputs of automated designs rather than prescribing exact mechanisms, supporting innovation in device design while ensuring patient safety.
Practical applications and users
EN ISO 11608-5:2023 is essential for:
- Medical device manufacturers developing autoinjectors, automated injection platforms or delivery modules with automated functions.
- Regulatory and conformity assessment bodies assessing device compliance for market approval and CE marking across CEN member states.
- Design, verification and validation engineers who implement and test automated needle functions (dose accuracy, depth control, shielding).
- Quality assurance and test laboratories executing the specified test methods.
- Procurement and clinical technology managers evaluating device safety features for hospitals and home-care settings.
Use the standard when designing, validating or specifying NIS‑AUTO to demonstrate compliance with accepted international safety and performance criteria.
Related standards
- ISO 11608-1 (general requirements and terminologies for needle-based injection systems)
- Other parts of the ISO 11608 series (device-specific requirements and test methods)
Keywords: EN ISO 11608-5:2023, ISO 11608-5:2022, needle-based injection systems, automated functions, NIS‑AUTO, dose accuracy, injection depth control, needle shielding, medical device standards.
