ARCPROLED MediPanel COI
For medical installations

ARCPROLED MEDIPanel COI

  • YEAR : 2023
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  • PRODUCT CATEGORY : Commercial Lighting
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The ARCPROLED MediPanel COI has been developed to be installed in hospital emergency rooms for fast diagnosis of possible cyanosis.

DESIGN FEATURES

  • High color rendering, uniform and healthy light, designed for medical and clinical applications
  • Easy and fast installation, tool-less installation, saving installation costs
  • Standard sizes: 600×600, 300×1200, 600×1200 mm
  • RAL9016 as standard, other RAL color available on request
  • System efficiency up to 100lm/W at Ra>97
  • EN 12464-1 & LG7 complaint, UGR<19 Optional
  • Various dimming options including 0-10V, DALI, switch DIM etc.
  • Emergency options available

TECHNICAL FEATURES

  • Available in 40W (600×600, 300×1200) & 60W (600×1200)
  • Input range 200V – 240V 50˜60Hz
  • CCT 4000K ±300K
  • Color rendering index Ra>97
  • Luminous flux 4000lm / 6000lm
  • Beam angle 110° / 90°
  • IP20 / IK04
  • Lighting Method: Backlite
  • 595x595x30mm, 295x1195x30mm, 595x1195x30mm
  • Flicker Free

What is Cyanosis?

Cyanosis is a medical term referring to skin and/or membranes turning bluish/purplish. It is an indication that the tissue near the skin/membranes is low on oxygen saturation. It is therefore a visual manifestation of a whole range of potential cardiac or respirator problems and is a symptom the medical professionals are trained to look for.

ARCPROLED MediPanel COI

HOW DOES LIGHTING HELP?

Because cyanosis is a visual cue of a medical symptom based on observable color, lighting conditions and light quality play a significant part in its visual detection. The detection of a ‚bluing’ of the skin depends largely on the accurate rendition of both ‚normal’ skin tones and blue hues, so it is particularly important that the light color spectrum (and therefore, CRI) factors are considered when developing a lighting design.

LIGHTING DESIGN CONSIDERATIONS

Interior Lighting Standard AS/NZS 1680.2.5:1997 covers ‚Hospital and medical tasks‘ , and it introduces the concept of lighting to support the observation of cyanosis. It also establishes the Cyanosis Obseravation Index (COI) as a measure of the ability of a light source to aid the detection of cyanosis in a patient. Full requirements are outlined in Section 7.2 of that standard, which includes

  • „Where it is decided“ that cyanosis observation is necessary, the lighting should have a color temperature between 3300K and 5300K and a COI of 3.3 or less.
  • „All members of the health care team“ should „discuss and decide“ on which areas need to have lighting which meets these specifications.
ARCPROLED MediPanel COI
ARCPROLED MediPanel COI

THE CYANOSIS OBSERVATION INDEX

Appendix G of AS/NZS1680.2.5 sets out the calculation procedure for determining the Cyanosis Observation Index (COI) of a light source.
The index value describes a light source’s suitability for visual detection of cyanosis in a patient. The lower the value, the better suited it is. Refer to the Standard for the full description for testing COI, but the basic overview is:

  • A full spectral power test needs to be completed, covering the 380nm to 760nm range in 5nm intervals.
  • The test evaluates the color appearance of fully oxygenated blood and oxygen-depleted blood under both a reference light source and then the light source under test. The COI is calculated based on the average difference/deviation of appearance when the two light sources illuminated the two blood types.

As mentioned previously, the standard suggests that light sources with a COI of no greater tan 3.3 can support reliable visual observation of cyanosis.