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Scientific - Injection needle mimics mosquito bite
یکشنبه 30 مرداد 1390

Injection needle mimics mosquito bite

   نوشته شده توسط: فریده جلیلوند    

 

Injection needle mimics mosquito bite

 

OSAKA, Japan (UPI) -- Japanese researchers say they've developed a motorized hypodermic needle patterned after a mosquito's mouth parts that hurts less than a conventional one

Seiji Aoyagi at Kansai University in Osaka, Japan, said the needle mimics a mosquito's proboscis, which is serrated and barely touches the skin so you don't feel the initial bite, NewScientist.com reported last week

A smooth, traditional hypodermic needle leaves a lot of metal in contact with the skin, which stimulates nerves and causes pain, Aoyagi said

His design could help diabetic people who have to take frequent blood samples, he said

Etched from silicon, the needle imitates a mosquito's mobile mouth parts

The sections of the needle, vibrated by small crystals, break the skin in the same sequence as they do with a mosquito as observed under high-speed video microscopes

Aoyagi has tested his needle on himself and three volunteers, who say the pain is much less but lasts longer than with a conventional syringe

 

 ArcaMax Science & Technology Ezine


 
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