Anchoring a medical instrument
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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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.
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Citations
20 Claims
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1. A method for subcutaneously anchoring a catheter instrument, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification