Edwards Lifesciences Corporation

Alyssa E Kornswiet

Mark Van Nest

Jackie P Lau

Louis A Campbell

Son V Nguyen

August R Yambao

Kevin K Dang

Harvey H Chen

Grace Myong Kim

Lisong Ai

Jyoti B Rao

Devin D Nguyen

Stephen W Tang

Edward Romero

Meena Francis

Diana Marie Edwards

Devine D Nguyen

Diana Marie George

A hybrid heart valve prosthesis that can be quickly and easily implanted during a surgical procedure is provided. The hybrid heart valve includes a substantially non-expandable, non-compressible prosthetic valve member having a peripheral sealing ring and an expandable stent frame projecting from an inflow end, thereby enabling attachment to the annulus without sutures. The stent frame may be plastically-expandable and may have a thin fabric layer covering its entirety as well as secondary sealing structures around its periphery to prevent paravalvular leaking. Other sealing solutions include interactive steps at the time of valve implant to establish seals around the stent and especially between the stent and the sealing ring of the valve member.

Heart valve sealing assemblies

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.

Systems for leak testing a valved conduit

Methods of leak testing a surgical conduit

Surgical conduit leak testing

Growing community of inventors

Orange, CA, United States of America

Alyssa E Kornswiet