IEC 60601-2-43:2022

Overview

IEC 60601-2-43:2022 is the third edition of the IEC particular standard for medical electrical X‑ray equipment used in radioscopically guided interventional procedures. It defines requirements for the basic safety and essential performance of both fixed and mobile interventional X‑ray systems declared by the manufacturer for interventional use. The standard focuses on minimizing radiation hazards, ensuring critical clinical functions remain available, and addressing electrical, mechanical and software safety in normal and single‑fault conditions.

Key topics and technical requirements

• Scope and exclusions: Applies to interventional X‑ray equipment; excludes radiotherapy, CT, mammography, dental X‑ray, accessories intended to be introduced into the patient, and general patient support exemptions where applicable.
• Radiation protection: Requirements for protection against unwanted and excessive radiation, stray radiation mapping (Annex BB), skin dose/air kerma considerations and guidance on preventing deterministic and stochastic effects.
• Dosimetry: Introduces the specific term DOSIMETER (replacing the general term dosemeter) and references dosimetric practices aligned with IEC 60601-2-54:2022.
• Essential performance & risk management: Clarifies what constitutes essential performance (see Annex AA) - clinical function under normal and single‑fault conditions - and lists potential essential performance items to consider during risk analysis.
• Electrical, mechanical and thermal safety: Alignment with IEC 60601‑1 series for electrical protection, temperature controls, and construction; includes requirements for controls, indicators (colour requirements clarified), and recovery times for functions after failures.
• Electromagnetic compatibility (EMC): Test and immunity/ emission requirements to ensure reliable operation in clinical environments.
• Documentation and labeling: Identification, marking and accompanying documents requirements for safe use and maintenance of interventional X‑ray equipment.
• ME systems: Clarifies application to complete medical electrical (ME) systems and interplay with other parts of the IEC 60601 series.

Practical applications and users

This standard is essential for:

• Medical device manufacturers designing or certifying interventional X‑ray systems and subsystems (fixed or mobile).
• Design and test engineers responsible for safety, dosimetry, EMC and risk management compliance.
• Regulatory and quality teams preparing technical documentation for conformity assessment and market access.
• Clinical engineering and procurement teams evaluating equipment safety, radiation protection features and essential performance for interventional suites.
• Test laboratories and notified bodies performing conformity testing against IEC 60601 series requirements.

Related standards

• IEC 60601‑1 (general safety and essential performance) and amendments (including AMD2:2020)
• IEC 60601‑2‑54 (diagnostic X‑ray imaging equipment) - cited subclauses apply as referenced
• Collateral standards IEC 60601‑1‑11 and IEC 60601‑1‑12 may apply if declared by the manufacturer

Keywords: IEC 60601-2-43, interventional X‑ray equipment, medical electrical equipment, radiation protection, dosimeter, essential performance, basic safety, IEC standard.