EN 60601-2-11:2015

FOREWORD
INTRODUCTION
201.1 Scope, object and related standards
201.2 Normative references
201.3 Terms and definitions
201.4 General requirements
201.5 General requirements for testing of
       ME EQUIPMENT
201.6 Classification of ME EQUIPMENT and
       ME SYSTEMS
201.7 ME EQUIPMENT identification, marking
       and documents
201.8 Protection against electrical HAZARDS from
       ME EQUIPMENT
201.9 Protection against MECHANICAL HAZARDS of
       ME EQUIPMENT and ME SYSTEMS
201.10 Protection against unwanted and excessive radiation
       HAZARDS
201.11 Protection against excessive temperatures and other
       HAZARDS
201.12 Accuracy of controls and instruments and protection
       against hazardous outputs
201.13 HAZARDOUS SITUATIONS and fault conditions
201.14 PROGRAMMABLE ELECTRICAL MEDICAL
       SYSTESM (PEMS)
201.15 Construction of ME EQUIPMENT ME SYSTEMS
201.16 ME SYSTEMS
201.17 Electromagnetic compatibility of ME EQUIPMENT
       and ME SYSTEMS 201
Annexes
Annex B (informative) - Sequence of testing
Index of defined terms used in this particular standard
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications
Annex ZZ (informative) - Coverage of Essential
         Requirements of EU Directives

IEC 60601-2-11:2013 applies to the basic safety and essential performance of gamma beam therapy equipment, including multi-source stereotactic radiotherapy equipment. This particular standard of the 60601 series, establishes requirements to be complied with by manufacturers in the design and construction of gamma beam therapy equipment. It states tolerance limits beyond which interlocks must prevent, interrupt or terminate irradiation in order to avoid an unsafe condition. Type tests which are performed by the manufacturer, or site tests, which are not necessarily performed by the manufacturer, are specified for each requirement. It does not attempt to define the optimum performance requirements for a gamma beam therapy equipment for use in radiotherapy. Its purpose is to identify those features of design which are regarded at the present time as essential for the safe operation of such equipment. It places limits on the degradation of equipment performance at which it can be presumed that a fault condition applies, e.g. a component failure, and where an interlock then operates to prevent continued operation. This third edition cancels and replaces the second edition of IEC 60601-2-11 published in 1997 and its Amendment 1:2004. This edition constitutes a technical revision which brings this standard in line with the third edition of IEC 60601-1 and its collateral standards.