Systems and methods for anchoring medical devices
First Claim
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1. An anchor device for securing the position of a medical instrument, the anchor device comprising:
- a first external body comprising a proximal end and a distal end;
one or more anchors that extend distally from the distal end of the first external body, each anchor comprising a flexible tine that is deployable in a subcutaneous region to secure the first external body relative to a penetration point;
a tether member that extends proximally from the first external body, the tether member being directly connected to the first external body so that a distal end of the tether member is permanently maintained in a fixed positioned relative to the one or more anchors that extend distally from the distal end of the first external body; and
a second external body that is attachable to the tether member at a position proximally spaced away from the proximal end of the first external body, wherein the second external body is configured to directly contact and mate with an exterior of a medical instrument at a releasable mating location proximally spaced away from the proximal end of the first external body.
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Abstract
Some embodiments of a medical device anchor system include an anchor device, a tether, and an adapter for securing a medical instrument (such as a catheter or the like) in place relative to a skin penetration point using subcutaneous anchors.
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Citations
20 Claims
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1. An anchor device for securing the position of a medical instrument, the anchor device comprising:
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a first external body comprising a proximal end and a distal end; one or more anchors that extend distally from the distal end of the first external body, each anchor comprising a flexible tine that is deployable in a subcutaneous region to secure the first external body relative to a penetration point; a tether member that extends proximally from the first external body, the tether member being directly connected to the first external body so that a distal end of the tether member is permanently maintained in a fixed positioned relative to the one or more anchors that extend distally from the distal end of the first external body; and a second external body that is attachable to the tether member at a position proximally spaced away from the proximal end of the first external body, wherein the second external body is configured to directly contact and mate with an exterior of a medical instrument at a releasable mating location proximally spaced away from the proximal end of the first external body. - View Dependent Claims (2, 3, 4, 5, 6, 11, 12, 18, 19, 20)
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7. An anchor device for securing the position of a medical instrument, the anchor device comprising:
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a first external body comprising a proximal end and a distal end, wherein the first external body comprises a first body portion that is pivotably coupled to a second body portion about a longitudinal fold axis; one or more anchors that extend distally from the distal end of the first external body, each anchor comprising a flexible tine that is deployable in a subcutaneous region to secure the first external body relative to a penetration point; a tether member that extends proximally from the first external body; and
a second external body that is attachable to the tether member at a position proximally spaced away from the proximal end of the first external body, wherein the second external body is configured to releasably couple to a medical instrument. - View Dependent Claims (8, 9, 10)
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13. An anchor device for securing the position of a medical instrument, the anchor device comprising:
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a retainer body comprising a proximal end and a distal end, wherein the retainer body is configured to releasably couple to a first external portion of a medical instrument; first and second anchors that extend distally from the distal end of the retainer body, each anchor comprising a flexible tine that is deployable in a subcutaneous region to secure the retainer body relative to a penetration point; a tether member configured to extend proximally from the proximal end of the retainer body; and an adapter that is attachable to the tether at a user-selectable position proximally spaced a distance away from the retainer body, wherein the adapter is configured to releasably couple to a second external portion of the medical instrument, and wherein the tether member defines a plurality of mating locations spaced apart at different longitudinal positions relative to the proximal end of the retainer body, and the adapter being releasably and directly matable to the tether member at any of the plurality of mating locations so as to secure the adapter at the user-selectable position proximally spaced away from the proximal end of the retainer body. - View Dependent Claims (16, 17)
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14. An anchor device for securing the position of a medical instrument, the anchor device comprising:
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a retainer body comprising a proximal end and a distal end, wherein the retainer body is configured to releasably couple to a first external portion of a medical instrument, wherein the retainer body comprises a first body portion and a second body portion, wherein the first body portion is pivotably coupled to the second body portion at a longitudinal fold axis that extends between the proximal and distal ends of the retainer body; first and second anchors that extend distally from the distal end of the retainer body, each anchor comprising a flexible tine that is deployable in a subcutaneous region to secure the retainer body relative to a penetration point; a tether member configured to extend proximally from the proximal end of the retainer body; and an adapter that is attachable to the tether at a position proximally spaced a distance away from the retainer body, wherein the adapter is configured to releasably couple to a second external portion of the medical instrument. - View Dependent Claims (15)
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Specification