Tip configurations for a multi-lumen catheter

US8323227B2 · kind B2 · utility

Assignee

• C.R. Bard, Inc. · US

Inventors

• Bret Hamatake · Grantsville, US
• Jason R. Stats · Layton, US
• Amir Orome · Sandy, US
• Joseph Barrett · Kaysville, US
• Dallen G. Herzog · Salt Lake City, US

Key dates

• Filing date: Jul 2, 2004
• Grant date: Dec 4, 2012
• Expiry date: Jul 8, 2031

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2202/0413
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

Multi-lumen catheters with improved tip configurations, including a triple-lumen catheter which may be useful for apheresis. In one variation, the catheter has three lumens with distal openings angularly spaced apart and staggered axially with respect to one another. In another variation, the catheter has two lumens exiting distally and one centrally positioned lumen exiting proximally. A third variation is a catheter with a single distal opening and two proximal openings. The staggered lumen openings along the axial length of the catheter may decrease recirculation while maximizing flow rates.