Pressure actuated catheter seal and method for the same

US8951229B2 · kind B2 · utility

Assignee

• Boston Scientific Limited · BB

Inventors

• Michael J. Bonnette · Minneapolis, US
• Eric J. Thor · Arden Hills, US
• Stephen E. Weisel · Montrose, US
• Arthur E. Uber, III · Pittsburgh, US
• Leif E. Leirfallom · Plymouth, US
• Laszlo Trent Farago · Hudson, US

Key dates

• Filing date: Feb 22, 2011
• Grant date: Feb 10, 2015
• Expiry date: Jul 20, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2039/062
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A catheter includes a pressure actuated seal within a manifold. A catheter body is coupled with the manifold, and a manifold lumen and a catheter lumen are configured to receive pressurized fluids. The pressure actuated seal includes a pressure actuated seal element having a seal element lumen. The seal element lumen is in communication with the manifold and catheter lumens. The pressure actuated seal element is deformable between an open configuration and a sealed configuration. In the sealed configuration, the pressurized fluids in the manifold press on the pressure actuated seal element along a first seal face. The pressure actuated seal element compresses inwardly around the seal element lumen according to a pressure of the pressurized fluids. In the open configuration, the pressure actuated seal element relaxes in an absence of the pressurized fluids, and the seal element lumen is open and configured to allow passage of an instrument.