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The basic technology of the hypodermic needle has stayed largely unchanged since the 19th century, but as the years progressed and medical and chemical knowledge improved, small refinements have been made to increase safety and efficacy, with needles being designed and tailored for very particular uses. Hypodermic needles remain essential to ...
Fragment of a hypodermic needle stuck inside the arm of an IV drug user (x-ray). Drug injection is a method of introducing a drug into the bloodstream via a hollow hypodermic needle, which is pierced through the skin into the body (usually intravenously, but also at an intramuscular or subcutaneous, location).
A syringe being prepared for injection of medication. An injection (often and usually referred to as a "shot" in US English, a "jab" in UK English, or a "jag" in Scottish English and Scots) is the act of administering a liquid, especially a drug, into a person's body using a needle (usually a hypodermic needle) and a syringe. [1]
Subcutaneous administration is the insertion of medications beneath the skin either by injection or infusion. A subcutaneous injection is administered as a bolus into the subcutis, the layer of skin directly below the dermis and epidermis, collectively referred to as the cutis. The instruments are usually a hypodermic needle and a syringe.
The carpuject is a syringe device for the administration of injectable fluid medication. It was patented by the Sterling Drug Company, which became the Sterling Winthrop, after World War II. It is designed with a luer-lock device to accept a sterile hypodermic needle or to be linked directly to intravenous tubing line.
The most abundant transdermal drug administration route currently is via hypodermic needles, transdermal patches, and topical creams. [21] However, these routes have limited therapeutic effects because stratum corneum serves as a barrier that reduces the entry of drug molecules into the systemic circulation and target tissues. [ 21 ]
used for nasogastric suction (or at times introduction of food or drugs). video link: FNAC needles: used for fine needle aspiration of material from inside the body; used for diagnostic examinations of the cells hence obtained; video link: Trephine biopsy needle [4] used for taking a biopsy from a deep hard tissue like bone marrow (within a ...
Pen needles are designed for single use subcutaneous injection of medication and are not designed to be reused for more than one administration. [6] The needles are generally manufactured with an outer protective plastic shell, which is used by a person to attach the needle to the pen, and an inner plastic shell protecting the needle itself.