ISO 80369-6:2016

Overview

ISO 80369-6:2016 defines requirements for small-bore connectors for neuraxial applications - connectors used to deliver liquids and gases to neuraxial sites (spine, intrathecal/subarachnoid space, brain ventricles, epidural/extra-/peri-dural spaces) or to monitor/remove cerebrospinal fluid. The part of the ISO 80369 series focuses on connector design, dimensions and functional performance to reduce wrong-route misconnections that have caused serious patient harm.

Key topics and technical requirements

This standard addresses both design and verification to ensure safety and non-interconnectability with other connector types:

• Scope and intended use: neuraxial drug delivery, intrathecal chemotherapy, local anaesthetics, radiological contrast, antibiotics, analgesics, wound infiltration and continuous regional infusion.
• Dimensional requirements: specified geometry to prevent misconnection with connectors from other clinical applications.
• Materials and type tests: requirements for materials used in connector manufacture and referenced test methods.
• Performance requirements (examples from the standard):
  • Fluid leakage (positive-pressure liquid leakage, pressure-decay leakage testing)
  • Subatmospheric air leakage
  • Stress cracking resistance of materials
  • Mechanical integrity: resistance to axial separation, unscrewing and overriding
• Testing methods and reference connectors: normative and informative annexes define reference connectors, mechanical tests (including tests to verify non-interconnectability) and common test methods (see ISO 80369-20).
• Usability, risk and rationale: annexes summarize usability requirements, design assessment and link to risk management principles (ISO 14971).

Practical applications and users

ISO 80369-6 is relevant to:

• Medical device manufacturers and designers - for incorporating neuraxial-specific small-bore connectors into pumps, catheters, infusion sets and accessory devices.
• Regulatory and quality teams - to verify compliance, risk mitigation and product approvals.
• Hospitals and procurement - to select devices designed to reduce wrong-route errors.
• Clinical engineers and anaesthesiologists - for understanding connector compatibility and safe system design.

Adoption of ISO 80369-6 helps prevent dangerous misconnections, improving patient safety in neuraxial and regional anaesthesia workflows.

Related standards

• ISO 80369-1 - General requirements for small-bore connectors
• ISO 80369-20 - Common test methods
• Other ISO 80369 parts (e.g., Part 3, Part 5, Part 7) address connectors for different clinical applications.
• ISO 14971 - Risk management for medical devices; ASTM test methods referenced for material testing.

Keywords: ISO 80369-6, neuraxial connectors, small-bore connectors, misconnection prevention, connector dimensions, leakage testing, medical device safety.