Catheters, Drains and Tubes

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There are many types of drains, tubes and catheters used in surgery.   These next few pages will outline many of these and their major uses.

  • Catheters are used for evacuating or injecting fluids.  Catheters are sized on a French scale according to the diameter of the lumen.  The smallest diameter on this scale is 3 French.

  • Drains and tubes are devices used to drain fluid from the body when excessive drainage is expected.  A drain or tube is often placed in a separate small incision site known as a stab wound, close to the operative site.


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Last updated 10/11/16.
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