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CAN CSA C22.2 No. 60601-2-50-10 (2018): Safety Requirements for Infant Phototherapy Equipment
A comprehensive guide to the Canadian standard for medical electrical equipment used in neonatal jaundice treatment
Introduction
Infant phototherapy equipment is widely used in neonatal care to treat hyperbilirubinemia (jaundice) by exposing the infant’s skin to specific wavelengths of light. Given the vulnerability of the patient population, stringent safety requirements are essential. CAN CSA C22.2 No. 60601-2-50-10 (2018) is the Canadian adoption of IEC 60601-2-50:2009, incorporating national deviations for the Canadian market. It establishes particular safety and essential performance requirements for infant phototherapy equipment, complementing the general requirements of CAN CSA C22.2 No. 60601-1 (or CSA C22.2 No. 601.1). This article provides an overview of the scope, key technical provisions, and compliance considerations for manufacturers, regulators, and healthcare engineers.
Tip: When applying this standard, manufacturers should also integrate the risk management process defined in ISO 14971 to identify and mitigate hazards specific to neonate use.
Scope and Application
CAN CSA C22.2 No. 60601-2-50-10 (2018) applies to the basic safety and essential performance of infant phototherapy equipment, as defined in Clause 201.3.201. The equipment is intended to expose infants to electromagnetic radiation (typically in the blue or blue-green region, 400–550 nm) for therapeutic reduction of bilirubin.
Included equipment
- Phototherapy units with fluorescent, LED, or halogen light sources
- Fiberoptic phototherapy blankets
- Combined incubator-phototherapy systems (where the phototherapy function is used)
Exclusions
- Devices solely for diagnostic or cosmetic use
- Phototherapy products intended for adult patients (covered by other part 2 standards)
- Parts of the equipment that are outside the scope of IEC 60601-1 general standard
The standard applies both to equipment used in hospitals and in home care settings, as long as it meets the definitions. Notably, the Canadian version includes a national deviation for electrical supply connections (Clause 202.6) aligning with Canadian Electrical Code Part I requirements for branch circuit overcurrent protection.
Compliance Note: Demonstrating conformity to this standard is one pathway to satisfy the safety requirements of the Canadian Medical Devices Regulations (SOR/98-282) for Class II devices.
Key Technical Requirements
The standard specifies technical provisions organized under several categories. The table below summarizes critical parameters and limits.
| Requirement | Clause | Parameter / Limit |
|---|---|---|
| Effective irradiance | 201.12.4.101 | ≥ 10 μW/cm²/nm (spectrally weighted) at 450 nm |
| Maximum irradiance level | 201.12.4.102 | ≤ 150 μW/cm²/nm (to avoid thermal injury) |
| Skin temperature limit | 201.11.1.2 | Not exceed 41 °C under normal conditions |
| Temperature of accessible surfaces | 201.11.1.1 | Maximum 43 °C for metallic surfaces, 48 °C for non-metallic (during normal use) |
| Protective earthing | 201.8.6 | ≤ 0.1 Ω (Canadian deviation: ≤ 0.15 Ω allowed for cord sets) |
| Leakage current (patient leakage) | 201.8.7.4 | ≤ 10 μA under normal conditions (single fault: ≤ 50 μA) |
| Optical radiation hazard | 201.12.4.201 | Must not exceed weighted exposure limits for skin and eye (based on ICNIRP) |
| Mechanical strength (drop test) | 201.9.6 | No damage affecting safety after 25 mm drop onto hard surface |
Essential Performance
Clause 201.4.3 defines essential performance as the ability to deliver therapeutic irradiance within the specified range and maintain it during operation. The standard requires that the equipment be provided with an irradiance indicator or dosimeter to inform the user of the delivered dose.
Protection Against Radiation Hazards
Special attention is given to optical radiation. The standard requires that the spectral output of the light source shall be measured and documented. For UV and infrared components, limits are set to prevent photochemical and thermal damage. The use of a protective filter (e.g., to block UV below 400 nm) is mandated unless the source inherently does not emit hazardous levels.
Electrical and Thermal Safety
As an application-specific supplement to IEC 60601-1, the standard adopts all general requirements unless modified. Notable Canadian differences include:
- Supply voltage tolerance: ±10% of rated voltage (IEC allows ±10% as well, but Canada requires marking for 120 V / 60 Hz)
- Ambient temperature range for normal operation: 15 °C to 30 °C (as per CSA national deviation)
- Mandatory use of hospital-grade plugs (CSA C22.2 No.125)
Warning: Products originally certified to the international IEC 60601-2-50:2009 may require modification to meet Canadian deviations, especially regarding grounding resistance and plugs.
Compliance and Certification
To demonstrate conformity to CAN CSA C22.2 No. 60601-2-50-10, manufacturers must undergo testing by an accredited certification body recognized by the Standards Council of Canada (SCC). The evaluation includes:
- Full type testing according to all applicable clauses of the standard
- Review of the risk management file (ISO 14971)
- Inspection of production quality system (e.g., ISO 13485 or equivalent)
The certificate of compliance typically references the CSA mark or cCSAus mark. It is valid for five years, after which a surveillance audit is required. The standard also mandates that accompanying documents (instructions for use, technical description) be in English and French, as per Canadian regulations.
Transition and Updates
Since the publication in 2018, manufacturers should monitor any amendments or revisions. Currently, the standard is designated as “R2018” indicating reaffirmation in 2018 without changes to the 2010 edition. The next anticipated revision will align with IEC 60601-2-50:2018 (Ed. 3), but as of 2025, the Canadian adoption of the new edition is still under development.
Danger of Non-Compliance: Devices sold in Canada without certification to the applicable CSA standard can be subject to seizure by the Canada Border Services Agency or recall orders from Health Canada. Manufacturers must ensure valid certification before placing on the market.
Frequently Asked Questions
Q: Does CAN CSA C22.2 No. 60601-2-50-10 (2018) apply to phototherapy devices used in home care?
A: Yes, as long as the device is intended for infant phototherapy, the standard applies regardless of the location of use. However, added requirements for home use (e.g., caregiver training, misuse scenarios) may be covered by the accompanying risk management file.
A: Yes, as long as the device is intended for infant phototherapy, the standard applies regardless of the location of use. However, added requirements for home use (e.g., caregiver training, misuse scenarios) may be covered by the accompanying risk management file.
Q: How does this standard relate to the U.S. version (UL 60601-2-50)?
A: Both are based on IEC 60601-2-50; however, CSA includes specific national deviations for Canada, such as supply voltage (120 V), plug requirements (CSA C22.2 No.125), and bilingual labeling. UL version deviates for U.S. requirements (125 V, NEMA plugs). They are not interchangeable unless dual-certified.
A: Both are based on IEC 60601-2-50; however, CSA includes specific national deviations for Canada, such as supply voltage (120 V), plug requirements (CSA C22.2 No.125), and bilingual labeling. UL version deviates for U.S. requirements (125 V, NEMA plugs). They are not interchangeable unless dual-certified.
Q: Can I use a risk management file prepared for IEC 60601-2-50 for the CSA version?
A: Yes, but you must include the hazards arising from the Canadian deviations (e.g., different supply voltage ranges, ambient temperature limits) and ensure that the mitigation measures are applicable under Canadian conditions. The risk management file must be updated accordingly.
A: Yes, but you must include the hazards arising from the Canadian deviations (e.g., different supply voltage ranges, ambient temperature limits) and ensure that the mitigation measures are applicable under Canadian conditions. The risk management file must be updated accordingly.
Q: What is the certification process and typical timeline?
A: Manufacturers apply to a recognized certification body (e.g., CSA Group, Intertek, TÜV SÜD). The process includes document review, testing (typically 8–12 weeks), and initial factory inspection. Full certification can take 4–8 months depending on readiness and complexity.
A: Manufacturers apply to a recognized certification body (e.g., CSA Group, Intertek, TÜV SÜD). The process includes document review, testing (typically 8–12 weeks), and initial factory inspection. Full certification can take 4–8 months depending on readiness and complexity.
Last revised: 2026 — This article is for informational purposes and does not substitute the official standard text. Always refer to the published version of CAN CSA C22.2 No. 60601-2-50-10 for authoritative requirements.