Patent · US Active

Tip configurations for multi-lumen catheter

US9656041B2 · kind B2 · utility

7Cited by

137References

12Claims

0Family size

Assignee

C.R. Bard, Inc. · US

Inventors

Bret Hamatake · Grantsville, US
Jason R. Stats · Layton, US
Joseph Barrett · Kaysville, US

Key dates

Filing date	Dec 12, 2013
Grant date	May 23, 2017
Priority date	—
Expiry date	May 26, 2035

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.