JWG 1 - TC 62/SC 62D/JWG 1

This document applies to the basic safety and essential performance of a high-frequency ventilator (HFV) in combination with its accessories, hereafter referred to as ME equipment:
- intended for use in an environment that provides specialized care for patients whose conditions can be life-threatening and who can require comprehensive care and constant monitoring in a professional healthcare facility;
NOTE 1 For the purposes of this document, such an environment is referred to as a critical care environment. High-frequency ventilators for this environment are considered life-sustaining.
NOTE 2 For the purposes of this document, such a high-frequency ventilator can provide transport within a professional healthcare facility (i.e., be a transit-operable ventilator).
NOTE 3 A high-frequency ventilator intended for use in transport within a professional healthcare facility is not considered as a ventilator intended for the emergency medical services environment.
- intended to be operated by a healthcare professional operator;
- intended for those patients who need differing levels of support from artificial ventilation including ventilator-dependent patients; and
- capable of providing more than 150 inflations/min.
There are three principal designations of HFV:
- high-frequency percussive ventilation [HFPV, with a typical HFV frequency of (60 to 1 000) HFV inflations/min];
- high-frequency jet ventilation [HFJV, with a typical HFV frequency of (100 to 1 500) HFV inflations/min]; and
- high-frequency oscillatory ventilation [HFOV, with a typical HFV frequency of (180 to 1200) HFV inflations/min and typically having an active expiratory phase].
Additionally, HFV designations can be combined together or with ventilation at rates less than 150 inflations/min.
*A high-frequency ventilator is not considered a physiologic closed loop-control system unless it uses a physiological patient variable to adjust the ventilation therapy settings.
This document is also applicable to those accessories intended by their manufacturer to be connected to an HFV breathing system, or to a high-frequency ventilator, where the characteristics of those accessories can affect the basic safety or essential performance of the high-frequency ventilator.
If a clause or subclause is specifically intended to be applicable to ME equipment only, or to ME systems only, the title and content of that clause or subclause will say so. If that is not the case, the clause or subclause applies both to ME equipment and to ME systems, as relevant.
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 7.2.13 and 8.4.1 of IEC 60601-1:2005.
NOTE 4 Additional information can be found in 4.2 of IEC 60601-1:2005+AMD1:2012.
This document is not applicable to ME equipment that is intended solely to augment the ventilation of spontaneously breathing patients within a professional healthcare facility.
This document does not specify the requirements for:
- non-high-frequency ventilators or accessories which provide conventional ventilation for use in critical care environments, which are given in ISO 80601-2-12 [23];.
NOTE 5 An HFV can incorporate conventional critical care ventilator operational modes, in which case ISO 80601-2-12 is applicable to those modes.
- ventilators or accessories intended for anaesthetic applications, which are given in ISO 80601-2-13 [24];
- ventilators or accessories intended for the emergency medical services environment, which are given in ISO 80601-2-84, the replacement for ISO 10651-3 [13];
NOTE 6 An HFV can incorporate EMS ventilator capability.
- ventilators or accessories intended for ventilator-dependent patients in the home healthcare environment, which are given in ISO 80601-€‘2-72 [26];
- ventilators or accessories intended for home-care ventilatory support devices, which are given in ISO

This document applies to the basic safety and essential performance of an EMS ventilator in combination with its accessories, hereafter also referred to as ME equipment:
- intended for patients who need differing levels of support from artificial ventilation including ventilator-dependent patients;
- intended to be operated by a healthcare professional operator;
- intended for use in the EMS environment; and
- intended for invasive or non-invasive ventilation.
NOTE 1 An EMS ventilator can also be used for transport within a professional healthcare facility.
* An EMS ventilator is not considered to utilize a physiologic closed loop-control system unless it uses a physiological patient variable to adjust the ventilation therapy settings.
This document is also applicable to those accessories intended by their manufacturer to be connected to the ventilator breathing system, or to an EMS ventilator, where the characteristics of those accessories can affect the basic safety or essential performance of the EMS ventilator.
NOTE 2 If a clause or subclause is specifically intended to be applicable to ME equipment only, or to ME systems only, the title and content of that clause or subclause will say so. If that is not the case, the clause or subclause applies both to ME equipment and to ME systems, as relevant.
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, 7.2.13 and 8.4.1.
NOTE 3 Additional information can be found in IEC 60601-1:2005+AMD1:2012, 4.2.
This document does not specify the requirements for the following:
- ventilators or accessories intended for ventilator-dependent patients in critical care applications, which are given in ISO 80601-2-12.
- ventilators or accessories intended for ventilator-dependent patients in the home healthcare environment, which are given in ISO 80601-2-72[3].
- ventilators or accessories intended for anaesthetic applications, which are given in ISO 80601‐2‐13[4].
- ventilators or accessories intended for ventilatory support equipment (intended only to augment the ventilation of spontaneously breathing patients), which are given in ISO 80601‑2-79[5] and ISO 80601-2-80[6] [1].
- obstructive sleep apnoea therapy ME equipment, which are given in ISO 80601‐2‐70[7].
- operator-powered resuscitators, which are given in ISO 10651‐4[8].
- gas-powered emergency resuscitators, which are given in ISO 10651‐5[9].
- continuous positive airway pressure (CPAP) ME equipment .
- high‐frequency jet ventilators (HFJVs), which are given in ISO 80601-2-87[11].
- high‐frequency oscillatory ventilators (HFOVs)[10], which are given in ISO 80601-2-87[11].
NOTE 4 An EMS ventilator can incorporate high-frequency jet or high-frequency oscillatory ventilation-modes.
- cuirass or "iron‐lung" ventilators.
[1] ISO 80601-2-79 and ISO 80601-2-80 replace ISO 10651-6, which has been withdrawn.

This document applies to the basic safety and essential performance of a ventilator in combination with its accessories, hereafter referred to as ME equipment:
intended for use in an environment that provides specialized care for patients whose conditions can be life-threatening and who can require comprehensive care and constant monitoring in a professional healthcare facility;  
NOTE 1 For the purposes of this document, such an environment is referred to as a critical care environment. Ventilators for this environment are considered life-sustaining.
NOTE 2 For the purposes of this document, such a ventilator can provide transport within a professional healthcare facility (i.e. be a transit-operable ventilator).
NOTE 3 A critical care ventilator intended for use in transport within a professional healthcare facility is not considered as an emergency medical services environment ventilator.
intended to be operated by a healthcare professional operator; and
intended for those patients who need differing levels of support from artificial ventilation including for ventilator-dependent patients.  
A critical care ventilator is not considered to utilize a physiologic closed-loop-control system unless it uses a physiological patient variable to adjust the ventilation therapy settings.
This document is also applicable to those accessories intended by their manufacturer to be connected to a ventilator breathing system, or to a ventilator, where the characteristics of those accessories can affect the basic safety or essential performance of the ventilator.
NOTE 4 If a clause or subclause is specifically intended to be applicable to ME equipment only, or to ME systems only, the title and content of that clause or subclause will say so. If that is not the case, the clause or subclause applies both to ME equipment and to ME systems, as relevant.
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, 7.2.13 and 8.4.1.
NOTE 5 Additional information can be found in IEC 60601-1:2005+AMD1:2012, 4.2.
This document is not applicable to ME equipment or an ME system operating in a ventilator-operational mode solely intended for patients who are not dependent on artificial ventilation.
NOTE 6 A critical care ventilator, when operating in such a ventilator-operational mode, is not considered life-sustaining.
This document is not applicable to ME equipment that is intended solely to augment the ventilation of spontaneously breathing patients within a professional healthcare facility.
This document does not specify the requirements for:
ventilators or accessories intended for anaesthetic applications, which are given in ISO 80601-2-13[2];
ventilators or accessories intended for the emergency medical services environment, which are given in ISO 80601-2-84[3], the future replacement for ISO 10651-3[4];
ventilators or accessories intended for ventilator-dependent patients in the home healthcare environment, which are given in ISO 80601‑2-72:2015[5];
ventilators or accessories intended for home-care ventilatory support devices, which are given in ISO 80601-2-79:2018[6] and ISO 80601-2-80:2018[7][1];
obstructive sleep apnoea therapy ME equipment, which are given in ISO 80601‑2‑70[9];
continuous positive airway pressure (CPAP) ME equipment;
high-frequency jet ventilators (HFJVs) and high-frequency oscillatory ventilators (HFOVs), which are given in ISO 80601‑2‑87[63];  
NOTE 7 A critical care ventilator can incorporate high-frequency jet or high-frequency oscillatory ventilator-operational modes.
oxygen therapy constant flow ME equipment; and
cuirass or "iron-lung" ventilation equipment.  
[1] ISO 80601-2-79 and ISO 80601-2-80 replace ISO 10651-6, which has been withdrawn.

ISO 80601-2-12:2011 applies to the basic safety and essential performance of a ventilator in combination with its accessories, hereafter referred to as me equipment: - intended to be attended by a professional operator for those patients who are dependent on mechanical ventilation; and - intended for use in critical care environments in a professional healthcare facility or intended for use in transport within a professional healthcare facility. ISO 80601-2-12:2011 is also applicable to those accessories intended by their manufacturer to be connected to a breathing system, or to a ventilator, where the characteristics of those accessories can affect the basic safety or essential performance of the ventilator. ISO 80601-2-12:2011 is not applicable to me equipment or an me system operating in ventilation modes intended for patients who are not dependent on mechanical ventilation. ISO 80601-2-12:2011 is not applicable to me equipment or an me system intended for those patients who are not dependent on mechanical ventilation. If a clause or subclause is specifically intended to be applicable to me equipment only, or to me systems only, the title and content of that clause or subclause will say so. If that is not the case, the clause or subclause applies both to me equipment and to me systems, as relevant. ISO 80601-2-12:2011 is not applicable to continuous positive airway pressure (CPAP) me equipment, sleep apnoea therapy me equipment, home healthcare environment ventilators, ventilatory support me equipment, emergency and transport ventilators, anaesthetic ventilators, high-frequency jet ventilators (HFJVs) and high-frequency oscillatory ventilators (HFOVs). ISO 80601-2-12:2011 does not specify the requirements for me equipment that is intended solely to augment the ventilation of spontaneously breathing patients within a professional healthcare facility. ISO 80601-2-12:2011 does not specify the requirements for ventilators or accessories intended for anaesthetic applications which are given in ISO 80601-2-13. ISO 80601-2-12:2011 does not specify the requirements for ventilators or accessories intended for home care ventilators for ventilator-dependent patients which are given in ISO 10651-2. ISO 80601-2-12:2011 does not specify the requirements for ventilators or accessories intended for emergency and transport which are given in ISO 10651-3. ISO 80601-2-12:2011 does not specify the requirements for ventilators or accessories intended for home-care ventilatory support devices which are given in ISO 10651-6.