公开(公告)号：EP0746712A4

公开(公告)日：1997-05-14

申请号：EP95903604

申请日：1994-11-25

申请人： ABBOTT LAB

发明人： POLI ROBERT G

IPC分类号： A61M39/24 ,  A61M39/28 ,  F16K7/00 ,  F16K15/18 ,  F16K17/18

CPC分类号： F16K7/00 ,  A61M39/24 ,  A61M39/281 ,  A61M2039/242 ,  A61M2039/2426 ,  F16K15/185 ,  F16K17/18 ,  Y10T137/7771 ,  Y10T137/7877 ,  Y10T137/7881

摘要： A bi-directional cracking valve that can be selectively opened. Bi-directional cracking valve (10, 70) is formed using an elastomeric membrane (34). Centered within the elastomeric membrane is a slit (36) that remains closed, blocking fluid flow through the device until a differential pressure across the elastomeric membrane exceeds a predefined cracking pressure, sufficient to force fluid through the slit. The elastomeric membrane is an integral part of an elastomeric cylinder (28), which is mounted in a valve carrier (12). The valve carrier includes ports disposed at opposite ends and the ports are adapted to couple to tubing. An operator can selectively enable fluid flow through the device by squeezing side tabs (40, 42) disposed on opposite sides of the elastomeric membrane together, forcing the slit open. A latch (46) is provided to keep the bi-directional cracking valve in an open state.

公开(公告)号：EP0596021A4

公开(公告)日：1994-07-13

申请号：EP92917000

申请日：1992-07-23

申请人： ABBOTT LAB

发明人： POLI ROBERT G ,  JOHNSON NOEL L

IPC分类号： A61M37/00 ,  A61M5/14 ,  A61M39/02 ,  A61M39/00

CPC分类号： A61M39/02 ,  A61M5/1408 ,  Y10T137/87652 ,  Y10T137/87684