Find a Syringe images for your creative needs, desktop wallpaper or Android device. A needle and syringe programme (NSP), syringe-exchange programme (SEP), or needle exchange program (NEP) is a social service that allows injecting drug users (IDUs) to obtain hypodermic needles and associated paraphernalia at little or no cost. It is based on the philosophy of harm reduction that attempts to reduce the risk factors for diseases such as HIV/AIDS and hepatitis. While NSPs provide most or all equipment free of charge, exchange programmes require service users to return used syringes to receive an equal number of new syringes.
A comprehensive 2004 study by the World Health Organization (WHO) found a "compelling case that NSPs substantially and cost effectively reduce the spread of HIV among IDUs and do so without evidence of exacerbating injecting drug use at either the individual or societal level." WHO's findings have also been supported by the American Medical Association (AMA), which in 2000 adopted a position strongly supporting NSPs when combined with addiction counseling.A syringe is a simple reciprocating pump consisting of a plunger (though in modern syringes it's 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 front (open) end of the tube. The open end of the syringe may be fitted with a hypodermic needle, a nozzle or a tubing to help direct the flow into and out of the barrel. Syringes are frequently used in clinical medicine to administer injections, infuse intravenous therapy into the bloodstream, apply compounds such as glue or lubricant, and draw/measure liquids.
The word "syringe" is derived from the Greek σύριγξ (syrinx, meaning "tube") via back-formation of a new singular from its Greek-type plural "syringes" (σύριγγες).A syringe driver or syringe pump is a small infusion pump (some include infuse and withdraw capability), use ...
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