http://www.freepatentsonline.com/4207894.html
A pediatric suction receptacle has a closed plastic collector with an upper wall integrally joined to a downward extending wall and an inward sloping wall terminating in a spigot. Two plastic tubes permanently connected to the upper wall have proximal ends extending into the chamber. Distal ends of the tubes have integrally formed two-way tubing adaptors. One tube is connected to a wall suction fitting, and the other tube is connected to a patient for receiving fluids to be calibrated.
Dalle descrizioni posso dire che non si riferisce a "presa". Potresti anche dire "compartimento"

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Note added at 4 giorni (2010-05-11 08:29:46 GMT) Post-grading
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Grazie mille