Cannula for heart chamber implantation and related systems and methods

US8545379B2 · kind B2 · utility

Assignee

• CircuLite, Inc. · US

Inventors

• Oliver Marseille · Aachen, DE
• Walid Aboulhosn · Aachen, DE

Key dates

• Filing date: Jun 24, 2008
• Grant date: Oct 1, 2013
• Expiry date: Dec 2, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61B2017/3488
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A cannula for implantation into a chamber of a heart includes an elongate body having a lumen extending along a longitudinal axis, a first end, and a second end. The first and second ends define openings into the lumen and the second end includes a flat portion. A flared tip portion extends from the flat portion of the second end in a direction toward the first end, and flares radially outward from the longitudinal axis and in such direction. A ring member extends around the axis of the elongate body and is spaced from the flared tip portion, and the ring member is adapted for retaining the elongate body in a position relative to a wall of the chamber. An embodiment of a flared tip portion may further include a barbed surface configured to contact tissue around an aperture in the wall of the heart when the cannula travels through the aperture.