Anchor instrumentation and methods
First Claim
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1. A catheter anchor device for securing a position of a catheter relative to a percutaneous opening in a skin layer occupied by the catheter, comprising:
- a proximal end, a distal end, and a length extending therebetween;
a catheter engagement body configured to releasably secure with a catheter when the catheter is inserted into a percutaneous opening in a skin layer and extends distally away from the distal end;
a subcutaneous anchor mechanism coupled to the catheter engagement body, the subcutaneous anchor mechanism having first and second flexible anchors that are adjustable to a deployed position in which the first and second flexible anchors are configured to abut an underside of the skin layer in a subcutaneous region; and
a subcutaneous cuff device coupled to the catheter engagement body, the subcutaneous cuff device comprising a biocompatible material to receive ingrowth of bodily tissue when disposed in the subcutaneous region, wherein the subcutaneous cuff device is positioned closer to the distal end of the catheter anchor device than to the proximal end of the catheter anchor device, and wherein when the catheter is moved through the percutaneous opening in the skin layer, a cuff-to-tip distance between the subcutaneous cuff device and a distal tip of the catheter is manually selectable; and
an actuator adjustable relative to the subcutaneous cuff device between a first position and a second position to simultaneously shift i) the catheter engagement body to secure the catheter in a fixed position relative to the subcutaneous cuff and ii) the flexible anchors to the deployed configuration.
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Abstract
Some embodiments of a medical device anchor system includes an anchor sleeve and a catheter (or other medical instrument) to advance through a working channel of the anchor sleeve. The anchor sleeve may have a subcutaneous cuff device arranged along an outer surface. In such circumstances, the embedded cuff device can inhibit the migration of infection from outside the skin and into the blood stream.
108 Citations
19 Claims
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1. A catheter anchor device for securing a position of a catheter relative to a percutaneous opening in a skin layer occupied by the catheter, comprising:
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a proximal end, a distal end, and a length extending therebetween; a catheter engagement body configured to releasably secure with a catheter when the catheter is inserted into a percutaneous opening in a skin layer and extends distally away from the distal end; a subcutaneous anchor mechanism coupled to the catheter engagement body, the subcutaneous anchor mechanism having first and second flexible anchors that are adjustable to a deployed position in which the first and second flexible anchors are configured to abut an underside of the skin layer in a subcutaneous region; and a subcutaneous cuff device coupled to the catheter engagement body, the subcutaneous cuff device comprising a biocompatible material to receive ingrowth of bodily tissue when disposed in the subcutaneous region, wherein the subcutaneous cuff device is positioned closer to the distal end of the catheter anchor device than to the proximal end of the catheter anchor device, and wherein when the catheter is moved through the percutaneous opening in the skin layer, a cuff-to-tip distance between the subcutaneous cuff device and a distal tip of the catheter is manually selectable; and an actuator adjustable relative to the subcutaneous cuff device between a first position and a second position to simultaneously shift i) the catheter engagement body to secure the catheter in a fixed position relative to the subcutaneous cuff and ii) the flexible anchors to the deployed configuration. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A catheter anchor device for securing a position of a catheter relative to a percutaneous opening in a skin layer occupied by the catheter, comprising:
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a subcutaneous cuff device; means for subcutaneously anchoring the catheter anchor device at a percutaneous opening in a skin layer so that the subcutaneous anchor means and the subcutaneous cuff device of the catheter anchor device are disposed in a subcutaneous region along an underside of the skin layer; means for receiving a catheter such that a distal tip of the catheter is movable relative to the subcutaneous cuff device to provide a distal length of the catheter extending distally from a distal end of the catheter anchor device that is greater than a maximum length of the catheter anchor, wherein the distance from the subcutaneous cuff device to the distal catheter tip defines a cuff-to-tip distance that is adjustable when the subcutaneous cuff device is disposed in the subcutaneous region along the underside of the skin layer; and means for simultaneously i) releasably securing the catheter to the catheter anchor device after the adjustment of the cuff-to-tip distance and ii) shifting the means for subcutaneously anchoring the catheter anchor device to a deployed configuration. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification