SIST EN IEC 60601-2-31:2020

Medical electrical equipment - Part 2-31: Particular requirements for the basic safety and essential performance of external cardiac pacemakers with internal power source (IEC 60601-2-31:2020)

EN-IEC 60601-2-31 applies to the BASIC SAFETY and ESSENTIAL PERFORMANCE of EXTERNAL PACEMAKERS powered by an INTERNAL ELECTRICAL POWER SOURCE, hereafter referred to as ME EQUIPMENT. This document applies to PATIENT CABLES as defined in 201.3.209, but does not apply to LEADS as defined in 201.3.206. HAZARDS inherent in the intended physiological function of ME EQUIPMENT 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 the general standard. This document does not apply to the implantable parts of ACTIVE IMPLANTABLE MEDICAL DEVICES covered by ISO 14708-1. This document does not apply to EXTERNAL PACEMAKERS which can be connected directly or indirectly to a SUPPLY MAINS. This document does not apply to transthoracic and oesophageal pacing ME EQUIPMENT and antitachycardia ME EQUIPMENT.

Medizinische elektrische Geräte - Teil 2-31: Besondere Festlegungen für die Sicherheit einschließlich der wesentlichen Leistungsmerkmale von externen Schrittmachern mit interner Stromversorgung (IEC 60601-2-31:2020)

Appareils électromédicaux - Partie 2-31: Exigences particulières pour la sécurité de base et les performances essentielles des stimulateurs cardiaques externes à source d'énergie interne (IEC 60601-2-31:2020)

IEC 60601-2-31:2020 est disponible sous forme de IEC 60601-2-31:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
L'IEC 60601-2-31:2020 s’applique à la SECURITE DE BASE et aux PERFORMANCES ESSENTIELLES des STIMULATEURS EXTERNES alimentés par une SOURCE D’ENERGIE ELECTRIQUE INTERNE désignés ci-après sous le terme APPAREILS EM. Le présent document s'applique aux CABLES PATIENT tels qu’ils sont définis en 201.3.209, mais ne s’applique pas aux DERIVATIONS telles qu’elles sont définies en 201.3.206. Les DANGERS inhérents à la fonction physiologique prévue de l'APPAREIL EM dans le cadre du domaine d'application du présent document ne sont pas couverts par des exigences spécifiques contenues dans le présent document, à l'exception de 7.2.13 et de 8.4.1 de la norme générale. Le présent document ne s'applique pas aux parties implantables des DISPOSITIFS MEDICAUX IMPLANTABLES ACTIFS traités par l’ISO 14708-1. Le présent document ne s'applique pas aux stimulateurs externes qui peuvent être connectés directement ou indirectement au RESEAU D’ALIMENTATION. Le présent document ne s’applique pas aux APPAREILS EM de stimulation transthoracique et œsophagienne ni aux APPAREILS EM pour la tachycardie. L'IEC 60601-2-31:2020 annule et remplace la deuxième édition parue en 2008 et l'Amendement 1:2011. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) L’exigence concernant l’essai de réduction d’énergie a été supprimée;
b) L’essai d’exposition à la défibrillation externe a été entièrement révisé;
c) L’exclusion des essais d'immunité aux DES uniquement relatives aux décharges dans l’air a été supprimée;
d) Alignement sur la version la plus récente de l’ISO 14708-2 pour les stimulateurs cardiaques, ainsi que sur la norme ISO 14117 associée relative à la CEM;
e) Justifications supplémentaires pour toutes les modifications.

Medicinska električna oprema - 2-31. del: Posebne zahteve za osnovno varnost in bistvene lastnosti zunanjih srčnih spodbujevalnikov z vgrajenim napajalnim virom (IEC 60601-2-31:2020)

General Information

• Status: Published
• Publication Date: 28-Apr-2020
• ICS: 11.040.01 - Medical equipment in general
• Technical Committee: IEMO - Electrical equipment in medical practice
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 22-Apr-2020
• Due Date: 27-Jun-2020
• Completion Date: 29-Apr-2020
• Directive: 93/42/EEC - Council Directive 93/42/EEC of 14 June 1993 concerning medical devices
• Mandate: M/432 - Standardisation Mandate addressed to CEN and CENELEC within the framework of Directive 2007/47/EC amending Directive 90/385/EEC and Directive 93/42/EEC relating to Medical Devices
• Ref Project: EN IEC 60601-2-31:2020 - Medical electrical equipment - Part 2-31: Particular requirements for the basic safety and essential performance of external cardiac pacemakers with internal power source

Relations

• Revised: SIST EN 60601-2-31:2008 - Medical electrical equipment -- Part 2-31: Particular requirements for the basic safety and essential performance of external cardiac pacemakers with internal power source
• Effective Date: 16-Aug-2016
• Revised: SIST EN 60601-2-31:2008/A1:2011 - Medical electrical equipment - Part 2-31: Particular requirements for the basic safety and essential performance of external cardiac pacemakers with internal power source
• Effective Date: 16-Aug-2016
• Replaces: SIST EN 60601-2-31:2008 - Medical electrical equipment -- Part 2-31: Particular requirements for the basic safety and essential performance of external cardiac pacemakers with internal power source
• Effective Date: 07-Apr-2020
• Replaces: SIST EN 60601-2-31:2008/A1:2011 - Medical electrical equipment - Part 2-31: Particular requirements for the basic safety and essential performance of external cardiac pacemakers with internal power source
• Effective Date: 07-Apr-2020

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN IEC 60601-2-31:2020
01-junij-2020
Nadomešča:
SIST EN 60601-2-31:2008
SIST EN 60601-2-31:2008/A1:2011
Medicinska električna oprema - 2-31. del: Posebne zahteve za osnovno varnost in
bistvene lastnosti zunanjih srčnih spodbujevalnikov z vgrajenim napajalnim virom
(IEC 60601-2-31:2020)
Medical electrical equipment - Part 2-31: Particular requirements for the basic safety and
essential performance of external cardiac pacemakers with internal power source (IEC
60601-2-31:2020)
Medizinische elektrische Geräte - Teil 2-31: Besondere Festlegungen für die Sicherheit
einschließlich der wesentlichen Leistungsmerkmale von externen Schrittmachern mit
interner Stromversorgung (IEC 60601-2-31:2020)
Appareils électromédicaux - Partie 2-31: Exigences particulières pour la sécurité de base
et les performances essentielles des stimulateurs cardiaques externes à source
d'énergie interne (IEC 60601-2-31:2020)
Ta slovenski standard je istoveten z: EN IEC 60601-2-31:2020
ICS:
11.040.01 Medicinska oprema na Medical equipment in general
splošno
SIST EN IEC 60601-2-31:2020 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN IEC 60601-2-31:2020


EUROPEAN STANDARD EN IEC 60601-2-31

NORME EUROPÉENNE

EUROPÄISCHE NORM
April 2020
ICS 11.040.01 Supersedes EN 60601-2-31:2008 and all of its
amendments and corrigenda (if any)
English Version
Medical electrical equipment - Part 2-31: Particular requirements
for the basic safety and essential performance of external
cardiac pacemakers with internal power source
(IEC 60601-2-31:2020)
Appareils électromédicaux - Partie 2-31: Exigences Medizinische elektrische Geräte - Teil 2-31: Besondere
particulières pour la sécurité de base et les performances Festlegungen für die Sicherheit einschließlich der
essentielles des stimulateurs cardiaques externes à source wesentlichen Leistungsmerkmale von externen
d'énergie interne Schrittmachern mit interner Stromversorgung
(IEC 60601-2-31:2020) (IEC 60601-2-31:2020)
This European Standard was approved by CENELEC on 2020-01-01. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN IEC 60601-2-31:2020 E

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SIST EN IEC 60601-2-31:2020
EN IEC 60601-2-31:2020 (E)
European foreword
The text of document 62D/1719/FDIS, future edition 3 of IEC 60601-2-31, prepared by SC 62D
"Electromedical equipment" of IEC/TC 62 "Electrical equipment in medical practice" was submitted to
the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 60601-2-31:2020.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2020-10-03
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-04-03
document have to be withdrawn

This document supersedes EN 60601-2-31:2008 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association.
Endorsement notice
The text of the International Standard IEC 60601-2-31:2020 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60086-2:2015 NOTE Harmonized as EN 60086-2:2016 (not modified)
IEC 61000-4-2:2008 NOTE Harmonized as EN 61000-4-2:2009 (not modified)
IEC 60086-1:2015 NOTE Harmonized as EN 60086-1:2015 (not modified)
IEC 60601-2-4:2010 NOTE Harmonized as EN 60601-2-4:2011 (not modified)


2

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SIST EN IEC 60601-2-31:2020
EN IEC 60601-2-31:2020 (E)
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
The annex ZA of EN 60601-1:2006 applies, except as follows:
Publication Year Title EN/HD Year
Replace
IEC 60601-1-2 2014 Medical electrical equipment - Part 1-2: EN 60601-1-2 2015
General requirements for basic safety and
essential performance - Collateral
Standard: Electromagnetic disturbances -
Requirements and tests

Addition
IEC 60601-1 2005 Medical electrical equipment - Part 1: EN 60601-1 2006
General requirements for basic safety and
essential performance
  +A12 2014
  +EN 60601-2010
1:2006/corrigendum
Mar. 2010
  +AC 2014
  +A11 2011
ISO 14117 2019 Active implantable medical devices – - -
Electromagnetic compatibility – EMC test
protocols for implantable cardiac
pacemakers, implantable cardioverter
defibrillators and cardiac resynchronization
devices
ISO 14708-2 2019 Implants for surgery – Active implantable - -
medical devices – Part 2: Cardiac
pacemakers

3

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SIST EN IEC 60601-2-31:2020




IEC 60601-2-31



Edition 3.0 2020-01





INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside










Medical electrical equipment –

Part 2-31: Particular requirements for the basic safety and essential

performance of external cardiac pacemakers with internal power source




Appareils électromédicaux –

Partie 2-31: Exigences particulières pour la sécurité de base et les


performances essentielles des stimulateurs cardiaques externes à source

d'énergie interne












INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 11.040.01 ISBN 978-2-8322-7671-6





Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

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SIST EN IEC 60601-2-31:2020
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CONTENTS
FOREWORD . 4
INTRODUCTION . 7
201.1 Scope, object and related standards . 8
201.2 Normative references . 10
201.3 * Terms and definitions . 10
201.4 General requirements . 12
201.5 General requirements for testing ME EQUIPMENT . 13
201.6 Classification of ME EQUIPMENT and ME SYSTEMS . 13
201.7 ME EQUIPMENT identification, marking and documents . 13
201.8 Protection against electrical HAZARDS from ME EQUIPMENT . 17
201.9 Protection against MECHANICAL HAZARDS of ME EQUIPMENT and ME SYSTEMS . 23
201.10 Protection against unwanted and excessive radiation HAZARDS . 23
201.11 Protection against excessive temperatures and other HAZARDS . 23
201.12 Accuracy of controls and instruments and protection against hazardous
outputs . 24
201.13 HAZARDOUS SITUATIONS and fault conditions for ME EQUIPMENT . 29
201.14 PROGRAMMABLE ELECTRICAL MEDICAL SYSTEMS (PEMS) . 29
201.15 Construction of ME EQUIPMENT . 29
201.16 ME SYSTEMS . 29
201.17 Electromagnetic compatibility of ME EQUIPMENT and ME SYSTEMS . 29
202 * ELECTROMAGNETIC DISTURBANCES – Requirements and tests . 29
Annexes . 31
Annex I Identification of IMMUNITY pass/fail criteria . 31
Annex AA (informative) Particular guidance and rationale . 32
Bibliography . 52
Index of defined terms used in this particular standard . 53

Figure 201.101 – Test waveform V implemented by example RCL circuit using
test
, L = 25 µH, RL + R = 1 Ω . 18
C = 120 µF
Figure 201.102 – Example circuit of defibrillation test voltage generator for generating
a decaying exponential waveform . 19
Figure 201.103 – Test setup for a SINGLE CHAMBER external CARDIAC PACEMAKER . 20
Figure 201.104 – Test setup for a DUAL CHAMBER external CARDIAC PACEMAKER . 20
Figure 201.105 – Test setup for a triple chamber external CARDIAC PACEMAKER, e.g. bi-
ventricular external CARDIAC PACEMAKER . 21
Figure 201.106 – Timing sequence . 21
Figure 201.107 – Measuring circuit for the PATIENT AUXILIARY CURRENT for
ME EQUIPMENT with an INTERNAL ELECTRICAL POWER SOURCE . 23
Figure 201.108 – Measuring circuit for the MAXIMUM TRACKING RATE . 26
Figure 201.109 – Initial oscilloscope display when measuring MAXIMUM TRACKING RATE . 27
Figure AA.1 – Simple model of a SINGLE CHAMBER EXTERNAL PACEMAKER during
defibrillation . 39

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SIST EN IEC 60601-2-31:2020
IEC 60601-2-31:2020 © IEC 2020 – 3 –
Figure AA.2 – First proposal for a defib-protection test of SINGLE CHAMBER EXTERNAL
PACEMAKER . 41
Figure AA.3 – Circuit for a defibrillation test generator for defibrillation test according

to conditions during open heart surgery . 42
Figure AA.4 – Defibrillation PULSE generated by the defibrillation test generator from
Figure AA.3 . 43
Figure AA.5 – Rise times of a defibrillation PULSE according to the circuit proposed in
Figure AA.3 . 47

Table 201.101 – Distributed ESSENTIAL PERFORMANCE requirements . 12
Table 201.102 – DUAL CHAMBER connector terminal marking. 14
Table 201.103 – ME EQUIPMENT parameters . 25
Table 202.101 – Static discharge requirements . 30
Table AA.1 – EXTERNAL PACEMAKER HAZARD inventory . 33
Table AA.2 – PULSE energies calculated for C = 120 µF ± 5 % . 44
Table AA.3 – PULSE energies calculated for C = 122 µF ± 5 % . 45
Table AA.4 – PULSE energies calculated for C = 126,32 µF ± 5 % . 46

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

MEDICAL ELECTRICAL EQUIPMENT –

Part 2-31: Particular requirements for the basic safety and essential
performance of external cardiac pacemakers
with internal power source

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC Publication(s)"). Their
preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
may participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
International standard IEC 60601-2-31 has been prepared by a Joint Working Group of IEC
subcommittee 62D: Electromedical equipment, of IEC technical committee 62: Electrical
equipment in medical practice, and ISO subcommittee SC6: Active implants, of ISO technical
committee 150: Implants for surgery.
This publication is published as a double logo standard.
This third edition cancels and replaces the second edition published in 2008 and
Amendment 1:2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
The requirement for testing for energy reduction has been removed;
The test for exposure to external defibrillation has been completely revised;

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SIST EN IEC 60601-2-31:2020
IEC 60601-2-31:2020 © IEC 2020 – 5 –
The exclusion for testing ESD immunity only with respect to air discharges has been
removed;
Alignment with the latest edition of ISO 14708-2 for pacemakers, as well as the associated
EMC standard ISO 14117;
Additional rationale for all changes.
The text of this International Standard is based on the following documents of IEC:
FDIS Report on voting
62D/1719/FDIS 62D/1732A/RVD

Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table. In ISO, the standard has been approved by 10
P members out of 10 having cast a vote.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
In this document, the following print types are used:
– requirements and definitions: roman type;
– test specifications: italic type;
– informative material appearing outside of tables, such as notes, examples and references: in smaller type.
Normative text of tables is also in a smaller type;
– TERMS DEFINED IN CLAUSE 3 OF THE GENERAL STANDARD, IN THIS PARTICULAR STANDARD OR AS
NOTED: SMALL CAPITALS.
In referring to the structure of this document, the term
– "clause" means one of the seventeen numbered divisions within the table of contents,
inclusive of all subdivisions (e.g. Clause 7 includes subclauses 7.1, 7.2, etc.);
– "subclause" means a numbered subdivision of a clause (e.g. 7.1, 7.2 and 7.2.1 are all
subclauses of Clause 7).
References to clauses within this document are preceded by the term "Clause" followed by the
clause number. References to subclauses within this particular standard are by number only.
In this document, the conjunctive "or" is used as an "inclusive or" so a statement is true if any
combination of the conditions is true.
The verbal forms used in this document conform to usage described in Clause 7 of the ISO/IEC
Directives, Part 2. For the purposes of this document, the auxiliary verb:
– "shall" means that compliance with a requirement or a test is mandatory for compliance with
this document;
– "should" means that compliance with a requirement or a test is recommended but is not
mandatory for compliance with this document;
– "may" is used to describe a permissible way to achieve compliance with a requirement or
test.
An asterisk (*) as the first character of a title or at the beginning of a paragraph or table title
indicates that there is guidance or rationale related to that item in Annex AA.
A list of all parts of the IEC 60601 series, published under the general title Medical electrical
equipment, can be found on the IEC website.

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The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
NOTE The attention of users of this document is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests. It is the recommendation of the committee that the content of this publication be adopted for
implementation nationally not earlier than 3 years from the date of publication.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

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SIST EN IEC 60601-2-31:2020
IEC 60601-2-31:2020 © IEC 2020 – 7 –
INTRODUCTION
The minimum safety requirements specified in this particular standard are considered to provide
for a practical degree of safety in the operation of EXTERNAL PACEMAKERS with an internal power
source.
Basically, CARDIAC PACEMAKERS treat cardiac arrhythmias. Such arrhythmias reduce cardiac
output and can lead to confusion, dizziness, loss of consciousness and death. The objective of
pacing is to restore cardiac rhythm and output appropriate to the PATIENT's physiological needs.
There are two distinct families of CARDIAC PACEMAKERS, implantable PACEMAKERS and EXTERNAL
PACEMAKERS. EXTERNAL PACEMAKERS are used to pace PATIENTS temporarily prior to implanting
an implantable PACEMAKER as well as for temporary pacing related to other medical
PROCEDURES, e.g. open heart surgery.
CARDIAC PACEMAKERS differ in the various ways in which they maintain and monitor cardiac
activity in different circumstances. The simplest model stimulates the atrium or ventricle
independently of the cardiac activity; others detect atrial or ventricular activity and stimulate the
atrium or ventricle as and when this is necessary; others, more complex, detect the
spontaneous heart activity and stimulate appropriately the atrium and/or the ventricle. Certain
PACEMAKERS work on preset frequency values, amplitudes and impulse duration. Others can
have several values for parameters.
Standards for EXTERNAL PACEMAKERS require attention to information which will aid in developing
and applying these devices. It is through these aspects of standardization that the central role
of clinical experience should be, or has been, acknowledged. The ability to predict how a
PACEMAKER will perform in a specific PATIENT based on testing of a device to a set of technical
criteria is limited.
This particular standard does not take into consideration the specific safety aspects of EXTERNAL
PACEMAKERS that are connected to a SUPPLY MAINS while simultaneously connected to the
PATIENT.
This particular standard amends and supplements IEC 60601-1:2005 and
IEC 60601-1:2005/AMD1:2012, Medical electrical equipment – Part 1: General requirements
for basic safety and essential performance, hereinafter referred to as the general standard.
The requirements are followed by specifications for the relevant tests.
Following the decision taken by subcommittee 62D at the meeting in Washington in 1979, a
"General guidance and rationale" section giving some explanatory notes, where appropriate,
about the more important requirements is included in Annex AA.
Clauses or subclauses for which there are explanatory notes in Annex AA are marked with an
asterisk (*).
An inventory of the PATIENT's safety posed by EXTERNAL PACEMAKERS and a rationale for the
safety requirements contained in this particular standard are given in Annex AA. It is considered
that knowledge of the reasons for these requirements will not only facilitate the proper
application of this particular standard but will, in due course, expedite any revision necessitated
by changes in clinical practice or as a result of developments in technology. However, Annex AA
does not form part of the requirements of this document.

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MEDICAL ELECTRICAL EQUIPMENT –

Part 2-31: Particular requirements for the basic safety and essential
performance of external cardiac pacemakers
with internal power source



201.1 Scope, object and related standards
1
Clause 1 of the general standard applies, except as follows:
201.1.1 * Scope
Replacement:
This part of IEC 60601 applies to the BASIC SAFETY and ESSENTIAL PERFORMANCE of EXTERNAL
PACEMAKERS powered by an INTERNAL ELECTRICAL POWER SOURCE, hereafter referred to as
ME EQUIPMENT.
This document applies to PATIENT CABLES as defined in 201.3.209, but does not apply to LEADS
as defined in 201.3.206.
HAZARDS inherent in the intended physiological function of ME EQUIPMENT 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 the general standard.
NOTE See also 4.2 of the general standard.
This document does not apply to the implantable parts of ACTIVE IMPLANTABLE MEDICAL DEVICES
covered by ISO 14708-1. This document does not apply to EXTERNAL PACEMAKERS which can be
connected directly or indirectly to a SUPPLY MAINS.
This document does not apply to transthoracic and oesophageal pacing ME EQUIPMENT and
antitachycardia ME EQUIPMENT.
201.1.2 Object
Replacement:
The object of this particular standard is to establish particular BASIC SAFETY and ESSENTIAL
PERFORMANCE requirements for EXTERNAL PACEMAKERS as defined in 201.3.205.
201.1.3 Collateral standards
Addition:
This particular standard refers to those applicable collateral standards that are listed in Clause
2 of the general standard and Clause 201.2 of this particular standard.
___________
1
The general standard is IEC 60601-1:2005 and IEC 60601-1:2005/AMD1:2012, Medical electrical equipment –
Part 1: General requirements for basic safety and essential performance.

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SIST EN IEC 60601-2-31:2020
IEC 60601-2-31:2020 © IEC 2020 – 9 –
IEC 60601-1-2:2014 applies as modified in Clause 202. IEC 60601-1-3 does not apply. All other
published collateral standards in the IEC 60601-1 series apply as published.
201.1.4 Particular standards
Replacement:
In the IEC 60601 series, particular standards may modify, replace or delete requirements
contained in the general standard and collateral standards as appropriate for the particular
ME EQUIPMENT under consideration, and may add other BASIC SAFETY and ESSENTIAL
requirements.
PERFORMANCE
A requirement of a particular standard takes priority over the general standard.
For brevity, IEC 60601-1:2005 and IEC 60601-1:2005/AMD1:2012 are referred to in this
particular standard as the general standard. Collateral standards are referred to by their
document number.
The numbering of clauses and subclauses of this particular standard corresponds to that of the
general standard with the prefix "201" (e.g. 201.1 in this document addresses the content of
Clause 1 of the general standard) or applicable collateral standard with the prefix "20x" where
x is the final digit(s) of the collateral standard document number (e.g. 202.4 in this particular
standard addresses the content of Clause 4 of the IEC 60601-1-2 collateral standa
...