cánulas

Cánula is a medical device, typically a thin tube, inserted into the body for a variety of medical procedures. The primary purpose of a cannula is to provide access to a bodily cavity, duct, or vessel. This access can be used for the introduction or removal of fluids, gases, or surgical instruments. Cannulas vary widely in size, material, and design, depending on their specific application. They are often made of metal or plastic and can be rigid or flexible.

One common use of cannulas is in intravenous (IV) therapy, where a cannula is inserted into a vein to administer medications, fluids, or blood. These are often referred to as IV catheters. Another application is in surgical procedures, where cannulas can be used for minimally invasive techniques, allowing surgeons to insert instruments through small incisions. Examples include laparoscopic surgery and arthroscopy.

Cannulas are also employed in respiratory care, such as nasal cannulas used to deliver supplemental oxygen to individuals with breathing difficulties. In dentistry, specialized cannulas might be used for suctioning saliva and debris. The insertion of a cannula is a medical procedure that requires sterile technique to prevent infection. The choice of cannula and the method of insertion are determined by the patient's condition and the intended medical intervention. Following use, cannulas are typically disposed of or sterilized for reuse, adhering to strict medical protocols.