1. Phototherapy lights
Shannonpatrick17, Phototherapy [photograph]. Retrieved from

2. Summary Quiz Clinical Use History Specifications
Principles of Operation
Block Diagram
Commercial Examples
Preventive Maintenance
Common Problems
Test Procedures

3. Quiz What wavelengths are effective for Neonatal jaundice treatment?
Can one replace a bili-light by a fluorescence bulb?

4. Neonatal jaundice (Hyperbilirubinemia )
Clinical Use
Neonatal jaundice (Hyperbilirubinemia )
80% of premature children suffer from decreased liver functions, which builds up bilirubin in the blood
Can cause long term nervous system damage

5. Janduice Meter Specifications
(2015), Jaundice Monitor [screenshot]. Retrieved from
Specifications
non-invasively and instantly tests transcutaneous concentration of bilirubin correlative with serum bilirubin concentration
Name: Jaundice Meter Introduction:
The Jaundice Meter is not only elegant in appearance, small in volume, easy and safe for operation, but also quick for examining jaundice disaster of body without any pollution to be generated in use.
Application:
The jaundice meter measures bilirubin transcutaneously.
Jaundice meter is an accurate, non-invasive device that will assist you in management of neonatal jaundice.
And transfer into bilirubin according to bilirubin list.
Jaundice meter can instantaneously measure and provide an estimate of serum bilirubin levels reported in mg/dl.
Display: LCD, 3 figures

6. (Hyperbilirubinemia )
Clinical Use
Neonatal jaundice
(Hyperbilirubinemia )
The baby sits in a basinet below the lights for 20 minutes or more
Der Lange (2010), Infant undergoing bili light therapy [photograph].. Retrieved from

7. Neonatal jaundice (Hyperbilirubinemia )
Clinical Use
Neonatal jaundice (Hyperbilirubinemia )
Mechanism of phototherapy: Blue-green light in the range of nm is most effective for phototherapy. The absorption of light by the normal bilirubin (4Z,15Z-bilirubin) generates configuration isomers, structural isomers, and photooxidation products. The 2 principal photoisomers formed in humans are shown. Configurational isomerization is reversible and much faster than structural isomerization. Structural isomerization is slow and irreversible. Photooxidation occurs more slowly than both configurational and structural isomerization. Photooxidation products are excreted mainly in urine. Adapted from Maisel MJ, McDonagh AD. Phototherapy for Neonatal Jaundice. N Engl J Med. 2008;358:
(2015), Phototherapy for Jaundice [image]. Retrieved from

8. Principles of Operation
9-4 Fordham (2015), Wavelength [graphic]. Retrieved from

9. Principles of Operation
Bili-lights can range from fluorescent tubes to reflector type lamps with special filters to pass only the proper wavelength of light (420 nm to 490 nm)
(2015), Phototherapy for Jaundice [image]. Retrieved from

10. Principles of Operation
(2004(, Phototherapy Lights [drawing]. Retrieved from

11. Controls Parameters
(2013), Epilepsyu [image]. Retrieved from

12. CONTROL OF THE NEWBORN POSTITION
Diagram
OPERATOR (OP)
CONTROL OF THE NEWBORN POSTITION
ALARM CIRCUIT
ENVIROMENT
TEMPERATURE
MONITORING
CIRCUIT
NEWBORN
AIR CIRCULATION
SYSTEM
OXYGENATOR
HUMIDIFIER
RESISTIVE
HEATER
TEMPERATURE
CONTROL
CIRCUIT
POWER SUPPLY
PANEL
GENERAL
SWITCH
Malkin (2006) Phototherapy Lights [diagram]. Retrieved from library.ewh.org

13. Commercial Examples Bili Blanket Light sources Flourescent
Halogen with filter
LED

14. Patient Safety Patients’ eyes must be protected from light
Martybugs (2008), Phototherapy[image]. Retrieved from
Note: never look directly at a UV light source

15. Common Problems Broken or missing blue light bulb
Broken or missing UV lamps
       - Low lamp output
       - Loose mounts or frayed cables
       - Broken power cord
       - Broken fibres in Biliblanket and fibre optic cable if applicable. 
       - insufficient cooling flow or blocked vent

16. Test Procedures Measure with a light meter and a filter
Measure the light output 1/2 meter (20") from the bili light opening

17. Test Procedures
If a light meter is not available the following test method may be required:
Check the light source by leaving your arm exposed to the light for 30 minutes
The next day, that part of your skin should be tan, but not burned

18. Questions ?