System for anchoring medical devices
First Claim
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1. An anchor device for securing a position of a catheter, comprising:
- a retainer body to releasably couple to the catheter when the catheter is inserted into a skin penetration point, the retainer body is configured to frictionally engage an outer surface of the catheter that is positioned external to the skin penetration point; and
first and second anchors comprising external shaft portions that extend distally from a distal end of the retainer body and generally longitudinally toward the skin penetration point when the retainer body releasably couples to the catheter, each anchor comprising a flexible tine that is deployable into a subcutaneous region to secure the retainer body relative to the skin penetration point, the flexible tine of the first anchor being configured to extend outwardly away from the flexible tine of the second anchor when the flexible tines are deployed in the subcutaneous region,wherein the first and second anchors extend distally from the distal end of the retainer body such that the entire retainer body is arranged external to the skin penetration point when the flexible tines of the first and second anchors are deployed to extend outwardly away from one another in the subcutaneous region.
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Abstract
Some embodiments of a medical device anchor system include an anchor device that receives a catheter (or other medical instrument) and secures the catheter in place relative to a skin penetration point. In some embodiments, the anchor device can secure the catheter in an operative position relative to the skin without the use of sutures or skin tapes.
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Citations
37 Claims
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1. An anchor device for securing a position of a catheter, comprising:
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a retainer body to releasably couple to the catheter when the catheter is inserted into a skin penetration point, the retainer body is configured to frictionally engage an outer surface of the catheter that is positioned external to the skin penetration point; and first and second anchors comprising external shaft portions that extend distally from a distal end of the retainer body and generally longitudinally toward the skin penetration point when the retainer body releasably couples to the catheter, each anchor comprising a flexible tine that is deployable into a subcutaneous region to secure the retainer body relative to the skin penetration point, the flexible tine of the first anchor being configured to extend outwardly away from the flexible tine of the second anchor when the flexible tines are deployed in the subcutaneous region, wherein the first and second anchors extend distally from the distal end of the retainer body such that the entire retainer body is arranged external to the skin penetration point when the flexible tines of the first and second anchors are deployed to extend outwardly away from one another in the subcutaneous region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An anchor device for securing a position of a catheter comprising:
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a retainer body to releasably couple to the catheter when the catheter is inserted into a skin penetration point, the retainer body is configured to frictionally engage an outer surface of the catheter that is positioned external to the skin penetration point, the retainer body comprising a retention member that releasably engages the catheter, wherein the retention member is adjustable from an opened configuration to a closed configuration to engage the catheter; and first and second anchors that extend distally from a distal end of the retainer body and toward the skin penetration point when the retainer body releasably couples to the catheter, each anchor comprising a flexible tine that is deployable into a subcutaneous region to secure the retainer body relative to the skin penetration point, the flexible tine of the first anchor being configured to extend outwardly away from the flexible tine of the second anchor when the flexible tines are deployed in the subcutaneous region, wherein the first and second anchors extend distally from the distal end of the retainer body such that the entire retainer body is arranged external to the skin penetration point when the flexible tines of the first and second anchors are deployed to extend outwardly away from one another in the subcutaneous region. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An anchor device for securing a position of a catheter, comprising:
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a retainer body to releasably couple to the catheter when the catheter is inserted into a skin penetration point, the retainer body is configured to frictionally engage an outer surface of the catheter that is positioned external to the skin penetration point, the retainer body comprising a retention member that releasably engages the catheter; and first and second anchors that extend distally from a distal end of the retainer body and toward the skin penetration point when the retainer body releasably couples to the catheter, each anchor comprising a flexible tine that is deployable into a subcutaneous region to secure the retainer body relative to the skin penetration point, the flexible tine of the first anchor being configured to extend outwardly away from the flexible tine of the second anchor when the flexible tines are deployed in the subcutaneous region, wherein the first and second anchors extend distally from the distal end of the retainer body such that the entire retainer body is arranged external to the skin penetration point when the flexible tines of the first and second anchors are deployed to extend outwardly away from one another in the subcutaneous region, wherein the flexible tines of the first and second anchors are sized to collectively insert through the skin penetration point and into the subcutaneous region while the skin penetration point is occupied by the catheter, wherein the first and second anchors comprise longitudinal shaft portions that extend generally longitudinally from the distal end of the retainer body to the respective flexible tines of the first and second anchors, wherein the flexible tine of the first anchor extends outwardly away from the distal end of the longitudinal shaft portion of the first anchor and toward a rounded free end of the flexible tine of the first anchor, and wherein the flexible tine of the second anchor extends outwardly away from the distal end of the longitudinal shaft portion of the second anchor and toward a rounded free end of the flexible tine of the second anchor. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification