A painless substitute for the hypodermic needle was reported last week. The revolutionary gadget, called the "hypospray," is a kind of air gun that shoots an injection under the skin in a spray so fine that the patient usually does not feel it.
The wonder was that no one had thought of it before. Its originator (an engineer) got the idea when an accidental explosion embedded oil droplets in a victim's flesh without marking his skin. The implement was later perfected by a group at R. P. Scherfer Corp., Detroit.
The hypospray blasts a drug through the pores, using air pressure of...
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