公开(公告)号：EP3268712A1

公开(公告)日：2018-01-17

申请号：EP16762540.9

申请日：2016-03-10

申请人： Edwards Lifesciences Corporation

发明人： VAN NEST, Mark ,  KORNSWIET, Alyssa, E. ,  LAU, Jackie, P.

IPC分类号： G01M3/08

摘要： Systems, devices, and methods for leak testing surgical conduit grafts or valved conduits such as aortic-valved conduits with a pressurized gas such as air. Air is non-destructive and especially useful for leak testing conduits that have coatings or sealants that may be functionally impacted when exposed to fluids such as water or saline. Open ends of the conduit are clamped and sealed, and a pressurized gas introduced into an inner lumen thereof. A change in mass flow rate is measured to quantify the leakage. One end of a tubular conduit may be clamped to a fixed manifold, and the opposite end to a manifold slidably mounted to accommodate any conduit elongation when pressurized. The clamping and sealing structure may be pneumatic and/or mechanical, and complementary contoured clamp members may be used to seal a scalloped external sealing ring of an aortic conduit.

公开(公告)号：EP3917454A1

公开(公告)日：2021-12-08

申请号：EP20708363.5

申请日：2020-01-29

申请人： Edwards Lifesciences Corporation

发明人： CHEN, Harvey, H. ,  NGUYEN, Son, V. ,  NGUYEN, Devine, D. ,  GEORGE, Diana, Marie ,  YAMBAO, August, R. ,  RAO, Jyoti, B. ,  KORNSWIET, Alyssa, E. ,  AI, Lisong ,  TANG, Stephen, W. ,  ROMERO, Edward ,  DANG, Kevin, K. ,  FRANCIS, Meena ,  CAMPBELL, Louis, A. ,  KIM, Grace, Myong

IPC分类号： A61F2/24

公开(公告)号：EP3268712B1

公开(公告)日：2020-07-29

申请号：EP16762540.9

申请日：2016-03-10

申请人： Edwards Lifesciences Corporation

发明人： VAN NEST, Mark ,  KORNSWIET, Alyssa, E. ,  LAU, Jackie, P.

IPC分类号： G01M3/08 ,  G01M3/28