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Anchoring a medical instrument

  • US 9,205,230 B2
  • Filed: 03/11/2013
  • Issued: 12/08/2015
  • Est. Priority Date: 11/19/2008
  • Status: Active Grant
First Claim
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1. A method for subcutaneously anchoring a catheter instrument, comprising:

  • inserting a distal catheter line of a catheter hub body through a skin penetration point, wherein the catheter hub body provides fluid communication between a first proximal external line connected to the catheter hub body and a first lumen of the distal catheter line and provides fluid communication between the second proximal external line connected to the catheter hub body and a second lumen of the distal catheter line;

    adjusting a pair of subcutaneous anchor elements from a non-deployed orientation in which the subcutaneous anchor elements are housed inside the catheter hub body to a deployed orientation in which free ends of the subcutaneous anchor elements extend outwardly away from the catheter hub body in a subcutaneous layer proximate to the skin penetration point, wherein the pair of subcutaneous anchor elements are adjusted to the deployed orientation by moving an actuator relative to the catheter hub body; and

    moving a locking device to a locked position to releasably maintain the pair of subcutaneous anchor elements in the deployed orientation,wherein the first and second proximal external lines, at least a portion of the actuator, and the locking device remain external to the skin penetration point after the distal catheter line and the pair of subcutaneous anchor elements are inserted through the skin penetration point.

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