suction channel

suction channel

A passage within an endoscope through which fluids may be injected or removed. During endoscopy it is used to draw blood, feces, mucus, or secretions away from the lens of the scope, so that clinical observations can be made with clarity and tissues can be selected for specimen collection.
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References in periodicals archive ?
In the first case, a pressure transducer was attached to the suction channel of the bronchoscope without suction applied.
A 16 Fr bronchoscope (Olympus LF-TP 5.2 mm outer diameter, 2.6 mm suction channel diameter) was used in all patients.
The pseudopolyp technique employs the suction channel of the colonoscope.
The suction channel supplements the inefficient gastric site with more efficient aspiration within the proximal duodenum.