Medela BiliBed, Инструкция по эксплуатации

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9 EN
According to the study from M. Jeffrey Maisels (Pediatrics Vol. 98, No. 2, August
1996: Why use Homeopathic Doses of Phototherapy) the efficacy of phototherapy
depends on three factors:
• Spectrum of light delivered by the phototherapy unit. Because of the optical
properties of bilirubin and skin, the most effective wavelengths are in the
blue-green spectrum.
• Power output of the light. This also depends on the distance of the light from
the infant. The lower the distance, the higher the efficacy.
• Surface area of the infant exposed to phototherapy. The efficacy is higher when
more skin is subjected to phototherapy.
Wavelength
Irradiation, effective surface area
E
bi max (400–550nm)
= max. irradiation in a central area
Effective surface area: within this area E
bi
≥ 0.4 E
bimax
Room temperature: (25± 2) °C
Effective surface area
Light is focused on the baby through the cut-out sector on the backside of the
Bilicombi. The size of this sector corresponds to the effective surface area.
In order to achieve the best therapeutical effect, the baby should wear small diapers.
spectral
irradiation
[w/m
2
/5nm]
with baby support
with baby support & Bilicombi
Wavelength [nm]
Maximum values
E
bi max (400–550nm)
= 49.1 W/m
2
Average values
E
bi max (400–550nm)
= 33.9 W/m
2
Effective surface area 21 × 27 cm
Head end
Corresponds to the effective surface area with measured spots
Corresponds to the BiliCombi
Corresponds to the cut-out sector of the Bilicombi
Foot end
Irradiation levels
VII