Hypodermic needle | 合法醫療器材資訊網

Ahypodermicneedle(fromGreekὑπο-(hypo-=under),andδέρμα(derma=skin)),oneofacategoryofmedicaltoolswhichentertheskin,calledsharps,isa​ ...

Device to inject substances into the circulatory system

A hypodermic needle (from Greek ὑπο- (hypo- = under), and δέρμα (derma = skin)), one of a category of medical tools which enter the skin, called sharps,[1] is a very thin, hollow tube with one sharp tip. It is commonly used with a syringe, a hand-operated device with a plunger, to inject substances into the body (e.g., saline solution, solutions containing various drugs or liquid medicines) or extract fluids from the body (e.g., blood). Large-bore hypodermic intervention is especially useful in catastrophic blood loss or treating shock.

A hypodermic needle is used for rapid delivery of liquids, or when the injected substance cannot be ingested, either becau...