cannula

Thân thiện

A nurse carefully inserts a cannula into a patient's arm.

Definition

Noun: A small, flexible tube designed to be inserted into a body cavity, duct, or vessel. Its primary functions are to drain fluid from or introduce medication into that space.

Usage

The word "cannula" is a technical medical term. It is used to describe the specific tube-like instrument itself. The term focuses on the object's physical form and its standard medical purpose.

Examples

• The surgeon inserted a cannula to drain the abscess.
• Oxygen is often delivered through a nasal cannula.
• The anesthetic was administered via an intravenous cannula.

Advanced Usage

• "To cannulate" (verb): The act of inserting a cannula.
  • The nurse will cannulate the vein for the IV drip.
• The term is often specified by its location or purpose, forming compound nouns like "nasal cannula" or "suction cannula." These are considered distinct, specific types of medical equipment.

Variants and Related Words

• Cannulate (verb): To introduce a cannula into a body part.
• Cannulation (noun): The process or instance of inserting a cannula.

Synonyms

• Catheter: A broader term for a tube inserted into the body; a cannula is a type of catheter.
• Tube: A very general, non-technical synonym.
• Drain: Can refer to a tube used for drainage, similar to one function of a cannula.

Học thuật

Noun

1. a small flexible tube inserted into a body cavity for draining off fluid or introducing medication