Overview
ISO 15674:2016/Amd 1:2020 is an important amendment to the ISO 15674:2016 standard, addressing connectors for cardiovascular implants and artificial organs, specifically focusing on hard-shell cardiotomy/venous reservoir systems (with or without filters) and soft venous reservoir bags. Developed by ISO Technical Committee ISO/TC 150 and Subcommittee SC 2, this amendment updates the specifications for connectors to ensure secure, reliable connections to blood pathways in extracorporeal systems used in cardiovascular surgery.
The amendment highlights key performance requirements and testing methods for connectors, including compliance with international standards such as ISO 80369-7:2016 and compatibility with connector types conforming to ISO 8637-1:2017.
Key Topics
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Connector Specifications
Connectors for blood pathway connections must allow a secure fit when tested according to prescribed ISO test methods, ensuring safety during cardiovascular procedures.
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Connector Types and Dimensions
The amendment specifies acceptable connector dimensions, including tubes with inner diameters of 4.8 mm, 6.3 mm, 9.5 mm, or 12.7 mm. It recognizes connectors that comply with ISO 8637-1:2017 (extracorporeal systems) and ISO 80369-7 (small-bore connectors for intravascular or hypodermic applications).
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Performance Testing
Connector performance is tested as per ISO 80369-7:2016, Clause 6, including tests with reference fittings and gauges to ensure proper sealing, strength, and compatibility.
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Connector Examples and Gauging
The amendment includes an informative Annex B showcasing detailed examples of connector types such as Luer slip fittings and Luer lock fittings, complete with dimensional tables and test gauge illustrations. These ensure standardized manufacturing, testing, and quality control practices.
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Reference Steel Fittings
Steel reference fittings depicted in the annex support consistent performance verification by serving as benchmark tools during testing procedures.
Applications
The ISO 15674:2016/Amd 1:2020 amendment is crucial for manufacturers, clinicians, and biomedical engineers involved in:
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Cardiovascular Surgery
Assuring the reliability and safety of hard-shell and soft venous reservoir systems used in procedures like cardiopulmonary bypass.
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Medical Device Manufacturing
Standardizing connector designs to guarantee compatibility with existing extracorporeal circulation systems and ease of assembly.
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Healthcare Safety
Minimizing risks associated with connector incompatibility, leakage, disconnection, or contamination during extracorporeal blood management.
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Regulatory Compliance
Supporting conformity with international medical device regulations by adhering to well-established ISO standards for cardiovascular implants.
Related Standards
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ISO 80369-7:2016
Governs small-bore connectors used in healthcare, particularly those for intravascular or hypodermic applications, ensuring safe connector interfaces.
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ISO 8637-1:2017
Specifies requirements for extracorporeal blood purification systems including haemodialysers and haemoconcentrators, relevant for connector compatibility.
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ISO/IEC Directives
Framework guiding the development and maintenance of ISO standards, ensuring consistency and rigor in technical documentation.
By following the specifications and testing protocols laid out in ISO 15674:2016/Amd 1:2020, stakeholders ensure high-quality, standardized connector systems crucial for safe and effective cardiovascular extracorporeal devices. This contributes to improved patient outcomes and harmonized international medical device safety.