Pump with venting

Details Pump with venting Pump with venting

2011-03-15

2011-03-15

Stigell, Theodore J (Department: 3763)

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

Reexamination Certificate

active

07905859

ABSTRACT:
A medication pump includes a housing including an external wall and a plurality of internal adjoining housings, including a first housing enclosing a cartridge. The pump includes a primary vent for venting the medication pump to atmosphere, the primary vent including a primary liquid barrier allowing passage of gas therethrough while preventing passage of liquid therethrough. The pump includes a secondary vent on the first housing, the secondary vent including a secondary liquid barrier allowing passage of gas therethrough to an interior of the housing while preventing passage of liquid therethrough.

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