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Paravalvular Leak Detection, Sealing, And Prevention

Patent No. EP2982337 (titled "Paravalvular Leak Detection, Sealing, And Prevention") was filed by Edwards Lifesciences PVT on Jun 30, 2005. The application was issued on Apr 8, 2026.

Patent Summary

A prosthetic valve (250) for percutaneous implantation in a body channel comprises a substantially cylindrical, radially expandable stent structure (252) and a valvular structure (254) formed of a pliant material attached to the stent, featuring three valve leaflets with an inlet and outlet. To prevent paravalvular leaks, the device includes a sleeve of compressible material (256) disposed along and extending entirely around the stent's outer surface. This compressible material, composed of polyethylene terephthalate (PET), has a thickness of 1 to 5mm and includes a plurality of fibers extending outward. Upon deployment, the material expands to fill gaps between the prosthetic valve and the body channel, providing an automatic seal.

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Patent Oppositions (2)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentative
NEOVASC TIARAMay 26, 2021WBH WACHENHAUSEN PATENTANWALTE PARTG MBB
ABBOTT CARDIOVASCULAR SYSTEMS, INC.May 25, 2021LKGLOBAL LORENZ & KOPF

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

  • Date

    Description

EP2982337

EDWARDS LIFESCIENCES PVT
Application Number
EP15180327A
Filing Date
Jun 30, 2005
Status
Patent Maintained As Amended
Mar 6, 2026
Publication Date
Apr 8, 2026
External Links
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