US 12,220,546 B2
System for anchoring medical devices
Michael S. Rosenberg, Eagan, MN (US); Mark R. Christianson, Plymouth, MN (US); Andrew T. Forsberg, Plymouth, MN (US); Andrew R. Beeson, Plymouth, MN (US); Ryan J. Bormann, Maple Grove, MN (US); and Michael W. Augustine, St. Michael, MN (US)
Assigned to INTERRAD Medical, Inc., Plymouth, MN (US)
Filed by INTERRAD Medical, Inc., Plymouth, MN (US)
Filed on May 3, 2022, as Appl. No. 17/735,503.
Application 17/735,503 is a continuation of application No. 16/894,467, filed on Jun. 5, 2020, granted, now 11,344,703.
Application 16/894,467 is a continuation of application No. 15/836,313, filed on Dec. 8, 2017, granted, now 10,709,874, issued on Jul. 14, 2020.
Application 15/836,313 is a continuation of application No. 14/569,065, filed on Dec. 12, 2014, granted, now 9,849,269, issued on Dec. 26, 2017.
Application 14/569,065 is a continuation of application No. 13/233,946, filed on Sep. 15, 2011, granted, now 8,936,576, issued on Jan. 20, 2015.
Prior Publication US 2022/0257908 A1, Aug. 18, 2022
Int. Cl. A61M 25/02 (2006.01)
CPC A61M 25/02 (2013.01) [A61M 2025/028 (2013.01); A61M 2025/0286 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method of securing a catheter relative to a skin penetration point, comprising:
advancing a catheter through a skin penetration point;
inserting first and second anchors of an anchor device through the skin penetration point and into a subcutaneous region proximate the skin penetration point while an external retainer assembly of the anchor device remains external to the skin penetration point and connected to the first and second subcutaneous anchors; and
securing an exterior surface of the catheter in a channel defined by a base of the external retainer assembly and a cap releasably mounted to the base of the external retainer assembly so that the catheter is anchored relative to the skin penetration point, the channel having a noncircular cross-sectional shape that is different than a cross-sectional shape of the catheter and is in a plane perpendicular to a central axis of the catheter; and
wherein the cap is releasably mounted to the base of the external retainer assembly by mating non-symmetric engagement structures of the base with corresponding non-symmetrical engagement structures of the cap while the catheter is within the channel.