EN ISO 11608-4:2022 PDF

Overview

EN ISO 11608-4:2022 (Corrected version 2024-12) specifies requirements and test methods for needle-based injection systems containing electronics (NIS-E). It covers electronic needle-based injectors used for self‑administration or administration by a caregiver/healthcare professional. The standard applies to single‑use or reusable NIS‑Es and to electronic accessories that are physically or electrically connected to NIS or NIS‑E devices. It does not set requirements for programmable device software (see IEC 60601-1 Clause 14) and does not address cybersecurity.

Key topics and technical requirements

The standard combines design, safety and verification requirements focused on medical-device electrical and electromagnetic characteristics, usability and risk management. Key topics include:

• General design and risk approach
  • Usability engineering and risk-based design decisions for NIS‑E.
• Identification and marking
  • Labeling, instructions for use and documentation related to electrical and EMC behavior.
• Electrical safety
  • Protection against electrical hazards, insulation, creepage/clearance, patient leakage current and touch current limits, and single‑fault conditions.
• Power and connections
  • Requirements related to power sources, separation of parts (Type X / Type Y), and limitations for accessible parts.
• Electromagnetic compatibility (EMC)
  • Emissions and immunity tests, test conditions, and documentation; immunity to RF and magnetic proximity fields.
• Mechanical hazards and environmental preconditioning
  • Mechanical strength, shock, fluid leakage influence and preconditioning for humidity/temperature.
• Testing framework
  • Type testing, sample sizes, ambient conditions and documentation of test results.

Practical applications

EN ISO 11608-4 is used to:

• Define design and verification criteria during development of electronic pen injectors, motor‑driven injectors and connected injection devices.
• Support type testing for conformity assessment and CE marking of NIS‑E in the EU.
• Provide test methods for electrical safety, EMC and mechanical robustness for regulatory submissions.
• Inform risk management and usability activities for devices that combine needles and electronics.

Who should use this standard

• Medical device manufacturers and design engineers of needle‑based electronic injectors (NIS‑E)
• Test laboratories performing electrical safety and EMC testing
• Regulatory bodies, notified bodies and conformity assessment teams
• Clinical engineers and procurement specialists evaluating device safety and interoperability

Related standards

• ISO 11608 series (other parts addressing needle‑based injection systems)
• IEC 60601-1 (for software life cycle processes referenced in the document)
• Applicable regional medical device regulations and EMC/low‑voltage directives

Keywords: EN ISO 11608-4:2022, needle-based injection systems, NIS-E, electronic injection systems, medical device standards, electrical safety, EMC testing, test methods, risk management, usability engineering.