Patent ID: 7833215
Filing Date: 2010-11-16
Classification: A61M

Abstract:
1. A method of maintaining a catheter fluid lock comprising: providing an indwelling catheter having a proximal end and a distal end, wherein said catheter is adapted for use in the cardio-vascular system, said catheter having an annular lumen segment with an axis and a sole sidewall distal port arrangement that lies in a common plane, wherein said common plane is substantially perpendicular to said axis of said annular lumen segment, and wherein said annular lumen segment extends between said proximal end and said common plane, terminating substantially in said common plane, implanting said catheter into a patient's cardio-vascular system, injecting fluid into said annular lumen segment to fill said annular segment with said fluid, and maintaining said fluid in said segment by virtue of said common perpendicular plane for said port arrangement.