F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
128/127, 137/60
F16K 15/14 (2006.01) A61M 25/10 (2006.01)
Patent
CA 1239072
ABSTRACT A self-sealing check valve is disclosed for use in the inflation of a catheter cuff. The valve includes a valve housing and a valve element sealingly positioned within the housing. The valve housing has a transversely located fitting for receiving a Luer tip device. The valve element is cylindrical and preferably hollow. A circumferential rim at each end of the element is main- tained in a state of compression so that it presses against the inner wall of the housing to form a seal. The element also includes a circumferential channel which is aligned with the Luer fitting. Insertion of the Luer tip device into the fitting depresses the valve element and breaks the seal between the rims and the valve housing wall. This allows fluid flow in either direction through the valve. Resiliency of the valve element causes resealment at the rims when the Luer tip device is removed.
483507
Mallinckrodt Inc.
Osler Hoskin & Harcourt Llp
LandOfFree
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