Patent ID: 9707380
Date: 2017-07-18
CPC Classifications: A61M

Claim:
1. A multi-lumen catheter comprising: a monolithic elongate tubular shaft member having a proximal end, a distal end and a longitudinal length therebetween, the tubular shaft member having an outer cross-sectional dimension that varies along the length of the tubular shaft member, the tubular shaft member having an inner core made of a first material, an outer layer made of a second material, and an intermediate tie layer disposed between the inner core and the outer layer, the first material of the inner core defining a first lumen and a second lumen, the first lumen having a first lumen cross-section and a length extending at least along a portion of the length of the tubular shaft member, the first lumen cross-section being substantially uniform along the length of the first lumen, and the second lumen having a second lumen cross-section and a length extending along the length of tubular shaft member, the second lumen cross-section being substantially uniform along the length of the second lumen.