NORMALLY CLOSED VALVE IN FREE STATE Russian patent published in 2011 - IPC A61F9/07 F01L1/00 F16K25/00 

Abstract RU 2432142 C2

FIELD: medicine.

SUBSTANCE: invention relates to medical equipment. A valve system for fluid flow control inside a surgical cartridge contains a body with a fluid inlet passage and a fluid outlet passage where two passages are coupled by a through hole; and an elastomeric valve boss arranged concentrically relatively to the through hole. Under static conditions, an edge of a lower side of the valve boss forms a seal face of the valve which contacts with an edge of the through hole owing to extension of the valve boss with respect to the through hole. And the edge of the through hole forms a valve seat.

EFFECT: application of the given invention shall allow controlling a fluid flow inside the cartridge with providing higher functionality, reliability, cleanness and operating safety of the valve system.

8 cl, 5 dwg

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RU 2 432 142 C2

Authors

Uill'Jams Dehvid Llojd

Dates

2011-10-27Published

2007-09-26Filed