25 December, 2008

Thermometer (old & new)

It was often a troublesome thing to measure the body 
temperature of children. It took 10~15 minutes in old one.  
Thanks to the advance of microelectronics.  Now it take 
few minutes.

This is a Ear thermometer(OMRON). To measure the 
body temperature, just inserting the ear canal.  
This device can measure the temperature of tympanic 
membrane, using the refraction of infra-red beam.  
But not for suitable in child, since the ear canal of children 
is narrow and often difficult in infants.

Any question: write to keiji Hagiwara, M.D.