Anchoring a medical instrument
AssigneeINTERRAD Medical, Inc.
InventorsMichael S. Rosenberg, Mark R. Christianson, Kyle P. Taylor, Andrew T. Forsberg, Edward A. Barlow
Life of this patent
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Abstract
Some embodiments of a medical anchor device include an elongate body coupled with deployable subcutaneous anchors to secure a catheter instrument (or other medical instrument) in place relative to a skin penetration point. In some circumstances, the elongate body may be in the form of catheter hub body, and the subcutaneous anchors can be deployed from the hub body by adjustment of a movable actuator. A locking member can interact with the actuator so as to retain the actuator in the deployed orientation during the medical procedure.
Claims20
A system for subcutaneously anchoring a catheter instrument, comprising:
- a catheter hub body that is connected to first and second proximal external lines and connected to a distal catheter line which is insertable through a skin penetration point, wherein the catheter hub body provides fluid communication between the first proximal external line and a first lumen of the distal catheter line and provides fluid communication between the second proximal external line and a second lumen of the distal catheter line;
- a pair of subcutaneous anchor elements that are adjustable between a non-deployed orientation in which the subcutaneous anchor elements are housed inside the catheter hub body and 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;
- an actuator to shift the flexible anchors from the non-deployed orientation to the deployed orientation;
- and a locking device 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 are configured to remain external to the skin penetration point when the distal catheter line and the pair of subcutaneous anchor elements are inserted through the skin penetration point.
A system for subcutaneously anchoring a catheter instrument, comprising:
- a catheter hub body that is connected to first and second proximal external and connected to a distal catheter line which is insertable through a skin penetration point, wherein the first and second proximal external lines are connected to a proximal end of the catheter hub body in a generally side-by-side position, and wherein the catheter hub body provides fluid communication between the first proximal external line and a first lumen of the distal catheter line and provides fluid communication between the second proximal external line and a second lumen of the distal catheter line;
- and a pair of subcutaneous anchor elements that are adjustable between a non-deployed orientation in which the subcutaneous anchor elements are housed inside the catheter hub body and a deployed orientation in which free ends of the subcutaneous anchor elements extend laterally outward from the catheter hub body in a subcutaneous layer proximate to the skin penetration point, wherein the subcutaneous anchor elements are flexible and the free ends of the subcutaneous anchor elements comprises rounded tips, wherein the first and second proximal external lines and at least a proximal portion of the catheter hub body are configured to remain external to the skin penetration point when the distal catheter line and the pair of subcutaneous anchor elements are inserted through the skin penetration point.
Dependencies are inferred from the claim text.