Patent ID: 8932270
Filing Date: 2015-01-13
Classification: A61M

Abstract:
1. A variable infusion length catheter comprising: a tube assembly including a distal end positionable within a body lumen in a patient, and a proximal end having a fitting with an inlet orifice formed therein, for fluidly connecting with a supply of liquid; the tube assembly further including an outer tube defining a longitudinal axis and having formed therein a plurality of axially spaced outer side ports, for infusing the liquid into the body lumen; the tube assembly further including at least one inner tube positioned coaxially within the outer tube, and having formed therein a supply passage configured to receive the liquid from the inlet orifice, and a plurality of axially spaced inner side ports configured to convey the liquid from the supply passage to the outer side ports; the outer tube being in contact with an adjacent one of the at least one inner tube along a segment of the tube assembly that includes the inner side ports and the outer side ports; and the at least one inner tube being rotatable within the outer tube to change a pattern of fluid communication among the outer and inner side ports and responsively adjust the infusion length of the catheter.