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Jet injectorA jet injector is a type of medical injecting syringe that uses a high-pressure narrow jet of the injection liquid instead of a hypodermic needle to penetrate the epidermis. It is powered by compressed air or gas, either by a pressure hose from a large cylinder, or from a built-in gas cartridge or small cylinder. Some are multi-shot, and some are one-shot. They are made in various shapes, as the links to images below show. They are used by diabetics to inject insulin as an alternative to needle syringes, though they are still not very common. In the Star Trek franchise, and sometimes in other fictional scenarios and occasionally in the real world, it is called a hypospray. Additional recommended knowledge
Types of jet injectorJet InjectorsThe Jet Injector Gun and the Ped-O-Jet are air-powered medical injector devices designed to administer vaccinations in an extremely efficient manner. Invented by Aaron Ismach, these medical devices were bought in mass quantities by the US Government and provided to governments around the world to eradicate smallpox and other diseases. Servicemen in the Armed Forces were routinely injected with these medical devices to immunize them, and civilian usage included vaccinations during flu epidemics and the like. The Jet Injector is powered by electricity, while the Ped-O-Jet version is powered by a foot pump and does not require electricity to administer the vaccines. These devices has various specialized nozzles for different medication densities and also permitted the efficient inoculation of animal populations as well. The Biojector® 2000 is a make of gas-cartridge-powered jet injector. It is claimed that it can deliver intramuscular injections and subcutaneous injections up to 1 milliliter. The part which touches the patient's skin is single-use and can be replaced easily. It can be powered from a big compressed gas cylinder instead of gas cartridges. It is made by Bioject. In October 2006 it was in clinical trials for patients using Fuzeon as part of their HAART treatment for HIV. For clinical trial and related information see http://www.hivdent.org/drugs1/drugBIFI0306.htm History
External links about jet injectors
Web pages using "hypospray" for a real jet injectorThese three references are all to articles in scientific periodicals:-
This link uses the name "hypospray" for an automatic tourniquet. Links to pages with images
Accidental jet injectionAccidents have happened in vehicle repair garages and elsewhere where one of these has unintentionally acted as a hypodermic jet injector:-
High pressure injections of oil or paint can cause very serious injuries which may require amputation and can induce fatal blood poisoning. Particular care must be taken around high pressure sprays of this kind to avoid such injuries. External links about accidental jet injection
References
Categories: Medical equipment | Drug delivery devices |
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Jet_injector". A list of authors is available in Wikipedia. |