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A Med-E-Jet vaccination gun from 1980. A jet injector, also known as a jet gun injector, air gun, or pneumatic injector, is a medical instrument that uses a high-pressure jet of liquid medication to penetrate the skin and deliver medication under the skin without a needle.
Syringe – indigenous American medicine men used syringes and hypodermic needles made from materials fashioned from hollow bird bones and animal bladders to inject medicine into sick patients and treat the illness of the patients. [29]
Alexander Wood's main contribution was the all-glass syringe in 1851, which allowed the user to estimate dosage based on the levels of liquid observed through the glass. [12] Wood used hypodermic needles and syringes primarily for the application of localized, subcutaneous injection (localized anesthesia) and therefore was not as interested in ...
A syringe is a simple reciprocating pump consisting of a plunger (though in modern syringes, it is actually a piston) that fits tightly within a cylindrical tube called a barrel. The plunger can be linearly pulled and pushed along the inside of the tube, allowing the syringe to take in and expel liquid or gas through a discharge orifice at the ...
Colonel Henry Milward was a fervent fly angler who decided to mix business with pleasure when he created Milward's Fishing Tackle Company as part of his centuries-old needle-factory. A dozen workers left needle- and syringe-making to become experts in hooks, flies, devons, spoons and split-cane rods. This remarkable adventure lasted until 1965 ...
According to Geer's patent, "In a hand-syringe the combination of a cylinder, a piston and an operating-rod which is bent upon itself to form a smooth and rigid arm terminating in a handle, which, in its extreme positions, is located within reach of the fingers of the hand which holds the cylinder, thus permitting one hand to hold and operate ...