ISO 80601-2-61:2017

Overview

ISO 80601-2-61:2017 - "Medical electrical equipment - Part 2-61" specifies particular requirements for the basic safety and essential performance of pulse oximeter equipment. It covers the pulse oximeter monitor, pulse oximeter probe, and probe cable extenders, and applies to devices that have been reprocessed. The standard focuses on non‑invasive estimation of arterial oxygen haemoglobin saturation (SpO2) and pulse rate for patients in clinical, home healthcare and emergency medical services (EMS) environments. It is not applicable to laboratory‑only devices, oximeters that require a blood sample, foetal‑only oximeters, or remote/slave displays located outside the patient environment.

Key topics and technical requirements

ISO 80601-2-61:2017 builds on the IEC 60601 series and addresses particular technical areas including:

• Basic safety and essential performance for pulse oximeter equipment and accessories (monitors, probes, cable extenders).
• Electrical and mechanical protection: identification, marking, construction and protection against electrical and mechanical hazards.
• Temperature and tissue safety: requirements and guidance for probe–patient interface temperature (see informative Annex BB).
• Accuracy and calibration: definitions and methods for evaluating SpO2 accuracy, calibration guidance, and controlled desaturation studies (Annexes CC, DD, EE).
• Signal and functional interfaces: saturation pulse information, functional connections, and data interface requirements (Annex HH).
• Electromagnetic compatibility (EMC) and immunity for medical electrical equipment, including use under extreme/uncontrolled environments (ambulance, air transport).
• Usability and alarm systems: human factors, alarm requirements and documentation (clauses and Annex AA rationale).
• Test methods and tooling: guidance on simulators, calibrators and functional testers for pulse oximeter evaluation (Annex FF).
• Notable update: ingress protection requirement changed from IPX1 to IPX2 in this edition.

Applications and who uses this standard

ISO 80601-2-61:2017 is used to:

• Define design and safety requirements for manufacturers of pulse oximeters, probes and accessories.
• Inform clinical engineers, biomedical device test labs and QA teams about performance testing, calibration and validation protocols.
• Support regulatory submissions and conformity assessment for medical electrical equipment that measures SpO2 and pulse rate.
• Guide procurement specifications for hospitals, EMS providers and home‑care device programs.

Primary users: medical device manufacturers, test laboratories, regulatory authorities, clinical engineers, and product managers responsible for SpO2 device safety and performance.

Related standards

ISO 80601-2-61:2017 is a particular standard within the IEC 60601 / ISO 80601 family and references collateral standards such as:

• IEC 60601-1 (general safety/performance)
• IEC 60601-1-2 (EMC), -1-6 (usability), -1-8 (alarm systems), -1-11 (home healthcare), -1-12 (ambulance/EMS) These related standards should be consulted alongside ISO 80601-2-61 for full compliance.