Anchor device and method
First Claim
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1. A method for using a tubular catheter at a skin penetration point, comprising:
- inserting a distal tip of a tubular catheter through a skin penetration point such that a proximal end portion of a tubular catheter resides external to the skin penetration point, the tubular catheter comprising;
a longitudinal axis, an inner lumen, and an outer tubular wall extending for a longitudinal length from the proximal end portion to the distal tip;
after the distal tip of the tubular catheter is inserted through the skin penetration point, securing a plurality of subcutaneous anchors of the tubular catheter in a subcutaneous layer along an underside of a skin layer proximate to the skin penetration point while the plurality of subcutaneous anchors are fixed to and extend outwardly from the outer tubular wall of the tubular catheter at a position that is located proximally from the distal tip of the tubular catheter and that is located distally of the proximal end portion of the tubular catheter, wherein the plurality of subcutaneous anchors are non-retractable and are positioned outwardly from the outer tubular wall of the tubular catheter during insertion of the plurality of subcutaneous anchors through the skin penetration point; and
withdrawing the tubular catheter and the plurality of subcutaneous anchors from the skin penetration point while the plurality of subcutaneous anchors are positioned outwardly from the outer tubular wall of the tubular catheter.
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Abstract
Some embodiments of an anchor device may include bendable anchor mechanism that is deployable in a subcutaneous layer to releasably secure the anchor device to a patient'"'"'s body. Certain embodiments of the anchor mechanism may include one or more barbs that flexibly bend in response to an insertion or removal force. As such, the anchor mechanism may be inserted into a subcutaneous layer, and removed from the subcutaneous layer, without the need for a separate actuation device to extend or retract the barbs.
178 Citations
14 Claims
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1. A method for using a tubular catheter at a skin penetration point, comprising:
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inserting a distal tip of a tubular catheter through a skin penetration point such that a proximal end portion of a tubular catheter resides external to the skin penetration point, the tubular catheter comprising;
a longitudinal axis, an inner lumen, and an outer tubular wall extending for a longitudinal length from the proximal end portion to the distal tip;after the distal tip of the tubular catheter is inserted through the skin penetration point, securing a plurality of subcutaneous anchors of the tubular catheter in a subcutaneous layer along an underside of a skin layer proximate to the skin penetration point while the plurality of subcutaneous anchors are fixed to and extend outwardly from the outer tubular wall of the tubular catheter at a position that is located proximally from the distal tip of the tubular catheter and that is located distally of the proximal end portion of the tubular catheter, wherein the plurality of subcutaneous anchors are non-retractable and are positioned outwardly from the outer tubular wall of the tubular catheter during insertion of the plurality of subcutaneous anchors through the skin penetration point; and withdrawing the tubular catheter and the plurality of subcutaneous anchors from the skin penetration point while the plurality of subcutaneous anchors are positioned outwardly from the outer tubular wall of the tubular catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification