A tube, usually of clear flexible plastic with lateral perforations, for draining a wound, abscess, etc.
- A man with an intracerebral drainage tube and an intravenous cannula died after he had been given penicillin intracerebrally rather than intravenously as prescribed.
- A negative pressure or suction force is then applied across the wound via a drainage tube embedded in the foam.
- The allograft is cut and shaped to a desired size and is sutured in place over the drainage tube to prevent the tube from eroding into the conjunctiva.
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