COLIN S. GREGERSEN,RYAN C PATTERSON,DANIEL H. BRITTINGHAM
申请号：
PT13793874
公开号：
PT2854928T
申请日:
2013.05.24
申请国别(地区):
PT
年份:
2019
代理人:
摘要：
A multi-lumen catheter including an elliptical cross-sectional profile configuration that enhances fluid flow rate while minimizing the average diameter of the catheter body is disclosed. In one embodiment the catheter includes an elongate catheter tube (12) defining a plurality of lumens. At least a portion of the longitudinal length of the catheter tube (12) may define an elliptical cross section, in turn defined by a major axis and a minor axis. In one embodiment, a ratio of the major axis to the minor axis of the elliptical cross section is between about 1.3 and about 1.4. The catheter body can define two, three, or more lumens. In one embodiment, a dual-lumen catheter tube includes an aspect ratio of about 1.1:1, and each lumen thereof includes an inner surface defined by a plurality of radii and an hourglass-shaped septum.
