Dual lumen aspiration catheter system

US7608063B2 · kind B2 · utility

Assignee

• MEDRAD, Inc. · US

Inventors

• Hieu V. Le · Brooklyn Park, US
• Michael Schrom · Forest Lake, US
• Diana Dutcher · Maple Grove, US
• Kyle R. Matson · Plymouth, US
• Dean A. Swanson · Forest Lake, US
• Kathleen C. Grant · Rogers, US
• James T. Klee · Maple Grove, US

Key dates

• Filing date: Feb 23, 2006
• Grant date: Oct 27, 2009
• Expiry date: Apr 28, 2026

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2025/0098
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A dual lumen aspiration catheter system with an aspiration catheter, a hub and a flexible strain relief, and a suction assembly. The aspiration catheter includes multiple successively connected flexible tubular components each increasing in relative flexibility in the distal direction, the most proximal tubular component connectingly extending from the hub and through the flexible strain relief. The tubular components of the aspiration catheter include, in order proximally to distally, a composite tube, an intermediate tube, a dual lumen tube, and a flexible tip tube. The dual lumen tube includes eccentrically co-located large and small tubular portions forming eccentrically co-located large and small lumens to provide a minimum cross section. The distal end of the dual lumen tube includes a convex beveled edge. The convex beveled edge and the flexible tip tube singly or jointly inflict minimal traumatic contact with a vessel wall when urged along a tortuous vascular path.