Medical electrical equipment - Part 2-71: Particular requirements for the basic safety and essential performance of functional near-infrared spectroscopy (NIRS) equipment
IEC 80601-2-71:2025 applies to the BASIC SAFETY and ESSENTIAL PERFORMANCE of FUNCTIONAL NIRS EQUIPMENT, as defined in 201.3.205, intended to be used by itself, or as a part of an ME SYSTEM hereinafter referred to as ME EQUIPMENT.
HAZARDS inherent in the intended physiological function of ME EQUIPMENT or ME SYSTEMS within the scope of this document are not covered by specific requirements in this document except in IEC 60601-1:2005, IEC 60601-1:2005/AMD1:2012 and IEC 60601-1:2005/AMD2:2020, 7.2.13 and 8.4.1.
This document is not applicable to
– equipment for the measurement of oxygen saturation of the haemoglobin in the micro vessels (capillaries, arterioles and venules), i.e. tissue oximeters;
– frequency-domain and time-domain equipment for functional near-infrared spectroscopy;
– equipment for the measurement of changes in the concentration of chromophores other than oxy- and deoxy-haemoglobin;
– equipment for the measurement of changes in the concentration of oxy- and deoxy-haemoglobin in tissues other than the brain.
This document does not specify the requirements for:
– cerebral tissue oximeter equipment, which are given in ISO 80601-2-85; and
– pulse oximeter equipment, which are given in ISO 80601-2-61.
IEC 80601-2-71:2025 cancels and replaces the first edition published in 2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) alignment with IEC 60601-1:2005, IEC 60601-1:2005/AMD1:2012, IEC 60601-1:2005/AMD2:2020, IEC 60601-1-8:2006, IEC 60601-1-8:2006/AMD1:2012, IEC 60601-1-8:2006/AMD2:2020, IEC 60601-1-2:2014, IEC 60601-1-2:2014/AMD1:2020, IEC 60601-1-6:2010, IEC 60601-1-6:2010/AMD1:2013 and IEC 60601-1-6:2010/AMD2:2020;
b) added requirements for ESSENTIAL PERFORMANCE;
c) added requirements for PRIMARY OPERATING FUNCTIONS;
d) added requirements for protection against excessive temperatures;
e) added requirements for the display legibility for OPERATORS wearing personal protective equipment;
f) harmonization with ISO 20417, where appropriate.
