System for anchoring medical devices
First Claim
Patent Images
1. An anchor device for securing the position of a catheter, comprising:
- an external retainer assembly to releasably couple to a catheter, the external retainer assembly having a longitudinal axis extending from a proximal end to a distal end; and
first and second anchors that are fixedly mounted to the external retainer assembly and that extend distally from the distal end of the external retainer assembly, each anchor comprising a flexible tine that is deployable in a subcutaneous region to secure the external retainer assembly relative to a skin penetration point,wherein the external retainer assembly defines a gripping channel extending generally parallel to the longitudinal axis of the external retainer assembly so as to engage an exterior surface of to the catheter when the external retainer assembly releasably couples to the catheter, the gripping channel having a non-circular cross-sectional shape in a plane generally perpendicular to the longitudinal axis.
1 Assignment
0 Petitions
Accused Products
Abstract
Some embodiments of a medical device anchor system include an anchor device that receives a catheter (or other medical instrument) and secures the catheter in place relative to a skin penetration point. In some embodiments, the anchor device can secure the catheter in an operative position relative to the skin without the use of sutures or skin tapes. In particular embodiments, the anchor device can be adjusted to a folded condition so that subcutaneous anchors are partially rotated prior to removal from the skin penetration point.
106 Citations
25 Claims
-
1. An anchor device for securing the position of a catheter, comprising:
-
an external retainer assembly to releasably couple to a catheter, the external retainer assembly having a longitudinal axis extending from a proximal end to a distal end; and first and second anchors that are fixedly mounted to the external retainer assembly and that extend distally from the distal end of the external retainer assembly, each anchor comprising a flexible tine that is deployable in a subcutaneous region to secure the external retainer assembly relative to a skin penetration point, wherein the external retainer assembly defines a gripping channel extending generally parallel to the longitudinal axis of the external retainer assembly so as to engage an exterior surface of to the catheter when the external retainer assembly releasably couples to the catheter, the gripping channel having a non-circular cross-sectional shape in a plane generally perpendicular to the longitudinal axis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. An anchor device for securing the position of a catheter, comprising:
-
an external retainer assembly to releasably couple to a catheter, the external retainer assembling having a longitudinal axis extending from a proximal end to a distal end; and first and second anchors that extend distally from the distal end of the retainer body, each anchor comprising a flexible tine that is deployable in a subcutaneous region to secure the external retainer assembly relative to a skin penetration point, wherein each flexible tine extends substantially straight to a respective free end having a rounded tine tip; wherein the external retainer assembly defines a channel extending along the longitudinal axis of the external retainer assembly to frictionally engage an exterior surface of to the catheter when the external retainer assembly releasably couples to the catheter. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
-
-
22. A method of using a catheter anchor device, comprising:
-
advancing a catheter though a skin penetration point; directing an anchor device toward the skin penetration point that is occupied by a portion of the catheter, the anchor device comprising;
an external retainer assembly defining a channel to releasably couple to an exterior surface of the catheter arranged outside the skin penetration point, and first and second anchors extending distally from a distal end of the external retainer assembly, the channel having a cross-sectional shape that is different than a cross sectional shape of the catheter;inserting the first and second anchors through the skin penetration point that is occupied by the catheter so that at least a portion of the first and second anchors are deployed in a subcutaneous region proximate the skin penetration point; securing the catheter with the external retainer assembly so that the catheter is anchored relative to the skin penetration point; pivoting the first and second anchors about a longitudinal fold line defined by a portion of the external retainer assembly so that the first and second anchors are adjusted from a deployed configuration to a removal configuration; and removing the first and second anchors from the subcutaneous region and the skin penetration point. - View Dependent Claims (23, 24, 25)
-
Specification