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Robert Andrew Hingson (April 13, 1913 – October 9, 1996) was an American physician who served as the first professor of anesthesiology at the University of Tennessee College of Medicine. Hingson developed multiple medical devices, including the jet injector for inoculations.
Since the late 1970s, jet injectors have been increasingly used by diabetics in the United States. These devices have all been spring-loaded. At their peak, jet injectors accounted for 7% of the injector market. Currently, the only model available in the United States is the Injex 23. In the United Kingdom, the Insujet has recently entered the ...
Some injectors are triggered by simply pushing the nose ring against the injection site. In these designs, the protective cap is the primary safety. Other designs use a safety mechanism similar to nail guns : The injection is triggered by pushing the nose ring against the injection site and simultaneously, while applying pressure, pushing a ...
Rather than removing the caudal needle after the injection as was customary, the two surgeons experimented with a continuous caudal infusion of local anesthetic. Hingson then collaborated with Edwards, the chief obstetrician at the Marine Hospital, to study the use of continuous caudal anesthesia for analgesia during childbirth. Hingson and ...
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There is an earlier patent 2821981 issued 1958 for a "MULTI-SHOT INOCULANT INJECTOR INSTRUMENT WITH ADJUSTABLE EJECTION PRESSURE CONTROL" invented by Frank A. Ziherl , viewable on Google patents I actually own one of these units called a "Press-O-Jet" and made by Z&W manufacturing, Wickliffe, Ohio however I don't know if this is the first such ...