SIST EN ISO 80369-3:2016 PDF

Overview

EN ISO 80369-3:2016 (ISO 80369-3:2016) defines the dimensions, design and functional performance requirements for small-bore connectors used with enteral medical devices (for example, enteral feeding sets, enteral drainage sets, enteral syringes and patient access ports). The standard targets connector safety and interoperability to reduce the risk of misconnections between enteral and non-enteral devices. It specifies connector geometry, materials considerations and type-test methods, but does not set requirements for the medical devices or accessories that use these connectors.

Key topics and technical requirements

• Scope and exclusions: Applies to enteral connectors only; excludes gastric suction-only devices, oral‑only devices, rectal and endoscopy equipment, skin-level gastrostomy devices, and pressurizing/depressurizing retention mechanisms.
• Dimensional requirements: Defined connector geometries and mating interfaces to ensure unique enteral connections and prevent cross-connection.
• Materials and biocompatibility: General requirements for materials used in enteral small-bore connectors (selection, compatibility, and manufacturing considerations).
• Type tests and performance testing:
  • Fluid leakage (including pressure decay and positive pressure leakage)
  • Stress cracking resistance
  • Resistance to separation under axial load and unscrewing
  • Resistance to overriding and controlled disconnection behavior
• Usability and risk guidance: Informative annexes provide rationale, usability summaries, checklists and assessment guidance for connector design and clinical use.
• Normative references and regulatory alignment: Cross-references ISO 80369-1 and other standards; includes Annex ZA describing relationship to EU Directive 93/42/EEC (medical device essential requirements).

Applications and who uses it

• Medical device manufacturers designing enteral feeding sets, syringes, access ports and related accessories - to ensure connector compatibility and compliance.
• Design engineers and product managers working on connector geometry, materials and performance validation.
• Regulatory and quality teams using EN ISO 80369-3:2016 to support conformity assessment and to demonstrate alignment with EU medical device requirements.
• Procurement and clinical engineering evaluating device interoperability and reducing misconnection risk in hospitals and long‑term care.
• Standards writers and test labs performing type-testing and verification.

Practical benefits include improved patient safety, reduced risk of inadvertent drug or fluid administration via wrong routes, and clearer paths to regulatory compliance. Manufacturers are encouraged to adopt ISO 80369-3 connector designs proactively even where not yet mandated by specific device standards.

Related standards

• ISO 80369-1 (General requirements for small-bore connectors)
• Other parts of ISO 80369 series addressing tubing connectors for different clinical applications
• Referenced standards such as ISO 5356 and ISO 8185 for related interfaces and testing methods

Keywords: EN ISO 80369-3:2016, ISO 80369-3, small-bore connectors, enteral connectors, enteral medical devices, connector dimensions, performance requirements, misconnection prevention, medical device standards.