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Anchoring a medical instrument

  • US 8,394,066 B2
  • Filed: 03/02/2012
  • Issued: 03/12/2013
  • Est. Priority Date: 11/19/2008
  • Status: Active Grant
First Claim
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1. A medical anchoring system, comprising:

  • a catheter hub body that provides fluid communication from an internal lumen to a distal catheter portion that is insertable through a skin penetration point, the internal lumen extending longitudinally from a proximal end of the catheter hub body toward a distal end of the catheter hub body;

    a subcutaneous anchor mechanism movably coupled to the catheter hub body, the subcutaneous anchor mechanism including flexible anchors that are adjustable between a non-deployed orientation and a deployed orientation in which the flexible anchors extend outwardly from the catheter hub body into a subcutaneous layer proximate to the skin penetration point;

    an actuator including an external portion that is movable relative to the catheter hub body so as to shift the flexible anchors from the non-deployed orientation to the deployed orientation; and

    a locking device that is movable relative to the catheter hub body and relative to the actuator from a first position to a second position in which the locking device abuts with an external proximal end face of the catheter hub body at the proximal end of the catheter hub body and abuts with the external portion of the actuator so as to lock the flexible anchors in the deployed orientation.

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