ISO 18250-7:2018

Overview

ISO 18250-7:2018 - "Medical devices - Connectors for reservoir delivery systems for healthcare applications - Part 7: Connectors for intravascular infusion" specifies the interface dimensions, material and functional performance requirements for connectors used to join intravascular infusion sets to intravascular reservoirs. It defines two connector families: spikes and administration ports (Connector Type 1) and Luer connectors (Connector Type 2). The standard focuses on connector interfaces only - not on full medical devices or accessories that use them - and aims to reduce the risk of misconnections by enforcing non‑interconnectability with non‑intravascular systems.

Key topics and technical requirements

• Connector types:
  • Type 1 - Spikes (on infusion sets) and administration ports (on reservoirs). Spikes shall follow spike geometries in ISO 8536-4 or ISO 1135-4 unless risk analysis requires modification.
  • Type 2 - Luer connectors, which must conform to ISO 80369-7 design and performance requirements.
• Material requirements:
  • Spikes: materials with a tensile or flexural modulus (E) ≥ 700 MPa.
  • Administration ports: wider range of elastomeric to rigid polymers allowed.
  • Luers: conform to ISO 80369-7 material rules.
• Dimensional and performance requirements: Clauses specify dimensional tolerances (see Clause 6) and performance/test expectations (see Clause 7). Performance references include ISO 8536-4, ISO 1135-4, ISO 15747, ISO 15759 and ISO 3826 parts for reservoir behaviors.
• Non‑interconnectability: Conformance to Clauses 5–7 demonstrates non‑interconnectability with clinical domains other than intravascular (reducing misconnections).
• Documentation: Compliance is checked by inspection of the technical file; annexes offer design guidance, usability summaries, engineering analysis and alternative spike examples (Annexes A–G).

Applications and users

ISO 18250-7 is directly applicable to:

• Medical device manufacturers designing IV bags, administration ports, infusion sets, syringes and reservoir accessories.
• Design and R&D engineers specifying connector geometry, materials, and performance validation.
• Regulatory and quality teams preparing technical files and conformity evidence.
• Procurement and suppliers ensuring connector compatibility and compliance.
• Healthcare systems and risk managers seeking to reduce misconnections and improve patient safety.

Practical benefits include standardized connector interfaces for IV reservoirs, clearer supplier requirements, and reduced risk of hazardous misconnections in clinical environments.

Related standards

• ISO 80369-7 (Luer / small‑bore connectors for intravascular use)
• ISO 8536-4, ISO 1135-4 (spike geometries and infusion set requirements)
• ISO 15747, ISO 15759, ISO 3826 (reservoir/container performance and materials)

Keywords: ISO 18250-7:2018, intravascular infusion connectors, reservoir connectors, IV spikes, administration ports, Luer connectors, connector dimensions, non‑interconnectability, medical device standards.