cannula

(noun)

A hose or tube that connects directly to an oxygen (O2) bottle/source from the user's nose, commonly used by aircraft pilots or others needing a direct oxygen breathing apparatus.

Related Terms

  • hypertonic
  • prophylactic

Examples of cannula in the following topics:

  • Liposuction

    • In general, fat is removed via a cannula (a hollow tube) and aspirator (a suction device).
    • Twin cannula (assisted) liposuction uses a tube-within-a-tube specialized cannula pair, so that the cannula, which aspirates fat, the mechanically reciprocated inner cannula, does not impact the patient's tissue or the surgeon's joints with each and every forward stroke.
    • The aspirating inner cannula reciprocates within the slotted outer cannula to simulate a surgeon's stroke of up to 5 cm (2 in) rather than merely vibrating 1–2 mm (1/4 in), as other power assisted devices, removing most of the labor from the procedure.
    • Superficial or subdermal liposuction is facilitated by the spacing effect of the outer cannula and the fact that the cannulas do not get hot, eliminating the potential for friction burns.
    • During the liposuction, the water is continually added and almost immediately aspirated via the same cannula.
  • Inferences of Correlation and Regression

    • Numbers of patients classified by site of central venous cannula and infectious complication.
    • This table shows the proportions of patients in the sample with cannulae sited at the internal jugular, subclavian and femoral veins.
    • Using the above formula to find the adjusted standardized residual for those with cannulae sited at the internal jugular and no infectious complications yields: $\frac{686-714.5}{\sqrt{714.5\left ( 1-\frac{934}{1706} \right )(1-\frac{1305}{1706})}}=-3.3$.
  • Respiratory Syncytial Virus Infection

    • Increased airflow, humidified and delivered via nasal cannula, may be supplied in order to reduce the effort required for respiration.
  • Radiation

    • Gamma rays are very penetrating and are commonly used for sterilization of disposable medical equipment, such as syringes, needles, cannulas and IV sets, and food.
  • Uses of Oxygen

    • Oxygen tents were once commonly used in oxygen supplementation, but have since been replaced mostly by the use of oxygen masks or nasal cannulas.
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