Anchor systems and methods
First Claim
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1. A method for securing a catheter relative to a skin penetration point, comprising:
- inserting the catheter through a skin penetration point;
inserting first and second anchors of an anchor instrument through the skin penetration point while the catheter is occupying the penetration point, the first and second anchors being coupled to an external retainer device of the anchor instrument and being configured to extend distally away from a distal end of the external retainer device, wherein a first subcutaneous flexible tine of the first anchor and a second subcutaneous flexible tine of the second anchor are deployed in a subcutaneous region adjacent to an underside of a skin layer to secure the external retainer device relative to the skin penetration point;
releasably engaging the external retainer device to an external portion of the catheter while the catheter is occupying the skin penetration point and while the first and second anchors extend distally away from the distal end of the external retainer device, wherein the external retainer device provides a channel that frictionally engages with at least a portion of an outer surface of the catheter; and
wherein the first and second subcutaneous flexible tines are positioned distal to the distal end of the external retainer device while deployed in the subcutaneous region adjacent to the underside of the skin layer and while the external retainer device resides fully external to the skin penetration point.
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Abstract
Some embodiments of a medical device anchor system include an anchor device that receives a medical instrument (such as a catheter or the like) and secures the instrument in place relative to a skin penetration point. In some circumstances, the anchor device may allow the anchor device to be used after medical instrument is already in place without the need for a second penetration point for the anchor device.
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Citations
12 Claims
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1. A method for securing a catheter relative to a skin penetration point, comprising:
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inserting the catheter through a skin penetration point; inserting first and second anchors of an anchor instrument through the skin penetration point while the catheter is occupying the penetration point, the first and second anchors being coupled to an external retainer device of the anchor instrument and being configured to extend distally away from a distal end of the external retainer device, wherein a first subcutaneous flexible tine of the first anchor and a second subcutaneous flexible tine of the second anchor are deployed in a subcutaneous region adjacent to an underside of a skin layer to secure the external retainer device relative to the skin penetration point; releasably engaging the external retainer device to an external portion of the catheter while the catheter is occupying the skin penetration point and while the first and second anchors extend distally away from the distal end of the external retainer device, wherein the external retainer device provides a channel that frictionally engages with at least a portion of an outer surface of the catheter; and wherein the first and second subcutaneous flexible tines are positioned distal to the distal end of the external retainer device while deployed in the subcutaneous region adjacent to the underside of the skin layer and while the external retainer device resides fully external to the skin penetration point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification