Patent ID: 8961491
Filing Date: 2015-02-24
Classification: A61M

Abstract:
1. A catheter retention device comprising: a catheter retention body having a proximal end and a distal end, the catheter retention body defining a lumen designed and configured to receive a catheter; a fluid source that provides a fluid at a fluid flow rate which is greater than a flow of blood in a vein; one or more proximal fittings operably connected to the catheter, and providing fluid communication from an exterior of the catheter retention body to an interior of the catheter; at least one distal lateral fitting on a distal portion of the catheter retention body, the at least one distal lateral fitting being designed and configured to couple to the fluid source and introduce the fluid into a distal portion of the lumen of the catheter retention body; a distal fitting at the distal end of the catheter retention body, the distal fitting defining a distal aperture through which the fluid and the catheter exit the lumen of the catheter retention body, wherein the fluid flowing through the distal aperture provides substantially all of a force required to expel the catheter from the catheter retention body and provides a pulling force on the catheter in a venous blood vessel related to the fluid flow rate and the flow of blood in the vein, wherein the fluid provides an augmented fluid flow rate in the venous blood vessel; and at least one friction augmentation device positioned to contact the catheter received within the lumen of the catheter retention body, wherein the at least one friction augmentation device provides a restraining force on the catheter during catheter deployment to control a rate of feed-out of the catheter from the distal aperture of the catheter retention body so the rate of feed-out of the catheter is less than the augmented fluid flow rate in the venous blood vessel.