Patent · US Active

Tip configurations for multi-lumen catheter

US8894607B2 · kind B2 · utility

8Cited by

133References

10Claims

0Family size

Assignee

C.R. Bard, Inc. · US

Inventors

Joseph Barrett · Kaysville, US
Dallen G. Herzog · Salt Lake City, US
Amir Orome · Sandy, US

Key dates

Filing date	Nov 28, 2012
Grant date	Nov 25, 2014
Priority date	—
Expiry date	Nov 28, 2032

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61M2202/0413
WIPO fieldMedical technology
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.