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A cannula (from Latin ''"little reed"''; plural ''cannulae'' or ''cannulas'')〔(cannula ) Oxford Dictionaries. Retrieved: 2014-09-18.〕 is a tube that can be inserted into the body, often for the delivery or removal of fluid or for the gathering of data. In simple terms, a cannula can surround the inner or outer surfaces of a trocar needle Decannulation is the permanent removal of a cannula (extubation),〔Children with Tracheotomies Resource Guide, by Marilyn K. Kertoy, page 15 ((Google book search ))〕 especially of a tracheostomy〔(Dorland's Illustrated Medical Dictionary )〕 cannula, once a physician determines it is no longer needed for breathing. == Medicine == Cannulae normally come with a trocar attached, which allows puncturing of the body in order to get into the intended space. Many types of cannulae exist:〔(Vita Needle - Typical Cannula Points )〕 Intravenous cannulae are the most common in hospital use. A variety of cannulae are used to establish cardiopulmonary bypass in cardiac surgery. A nasal cannula is a piece of plastic tubing that runs under the nose and is used to administer oxygen. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「cannula」の詳細全文を読む スポンサード リンク
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