Agent delivery catheter having a radially expandable centering support member

US8568355B2 · kind B2 · utility

Assignee

• Abbott Cardiovascular Systems, Inc. · US

Inventors

• Sung Woo Min · Mountain View, US
• Randolf von Oepen · Los Altos, US
• Binh T. Nguyen · Newark, US
• Kevin J. Ehrenreich · San Francisco, US
• William E. Webler · Escondido, US
• Rommel Lumauig · San Jose, US
• Gregory W. Chan · San Francisco, US
• Lorcan Coffey · Tübingen, DE
• Travis R. Yribarren · San Mateo, US
• Jesus Magana · Redwood City, US

Key dates

• Filing date: Dec 12, 2011
• Grant date: Oct 29, 2013
• Expiry date: Dec 12, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2025/1047
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A catheter for delivering an agent to an injection site in a wall of a patient's body lumen, with an elongated shaft having a needle-through lumen slidably containing a needle therein, and an expandable member on the distal shaft section which has a collapsed configuration and a radially expanded configuration. In the radially expanded configuration, the expandable member supports the shaft in a position spaced away from the body lumen wall, and the needle slidably exits the needle-through lumen in the extended configuration through the port spaced away from the body lumen wall as a portion of the expandable member maintains the position of the port section of the shaft in the body lumen. The expandable member typically has an open-walled, helical, or lobed configuration providing a perfusion path along the expandable member.