Patent ID: 7935127

Claim:
A method of using flexible retention tines, comprising: inserting a catheter through an opening in a skin layer and into a targeted body vessel; advancing one or more retention tines of an anchor device through the same opening in the skin layer and into a subcutaneous region under the skin layer proximate the targeted body vessel, the retention tines being adjustable to a deployed orientation in which each retention tine has a longitudinal convex curvature extending outwardly toward a free end of the retention tine, the free end of each retention tine terminating at a dull or rounded tip; and arranging the one or more retention tines in the deployed orientation in the subcutaneous region under the skin layer such that the longitudinal convex curvature of each retention tine bows toward an underside of the skin layer, wherein the anchor device releasably attaches to an outer surface of the catheter to secure the catheter relative to the opening in the skin layer while the catheter is arranged in the targeted body vessel.