Drainage system with vent

Details Drainage system with vent Drainage system with vent

A - Human Necessities

61

M

128/110

A61M 1/00 (2006.01) A61F 5/441 (2006.01) F16K 11/02 (2006.01)

Patent

CA 1158947

PF-1448 DRAINAGE SYSTEM WITH VENT ABSTRACT OF THE DISCLOSURE A vent for a liquid drainage system comprising, a con- duit having a lumen for drainage of liquid, and a filter pervious to air and substantially impervious to the passage of bacteria, with the filter communicating with the atmosphere. The vent has a valve assembly communicating between the lumen and the filter, with the valve assembly being movable between a first closed posi- tion to prevent passage of liquid from the lumen against the fil- ter, and a second open position to permit passage of air between the atmosphere and the lumen through the filter.

382454

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