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 retainer body comprising a first body portion that is pivotably coupled to a second body portion about a longitudinal fold axis; and
first and second anchors that extend distally from a 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, the first anchor being coupled to the first body portion and the second anchor being coupled to the second body portion,wherein the first body portion of the retainer body is pivotable relative to the second body portion about the longitudinal fold axis so that the first and second anchors are adjustable from a first configuration in which the flexible tines extend outwardly away from one another to a second configuration in which the flexible tines extend generally in a same direction; and
wherein the first body portion and the second body portions define a cutout region therebetween at a proximal end opposite from the first and second anchors in the first configuration to provide visualization and access to a surface under the retainer body.
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Abstract
Some embodiments of a medical device anchor system include an anchor device that secures a medical instrument (such as a catheter) in place relative to a skin penetration point using subcutaneous anchors.
118 Citations
21 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 retainer body comprising a first body portion that is pivotably coupled to a second body portion about a longitudinal fold axis; and first and second anchors that extend distally from a 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, the first anchor being coupled to the first body portion and the second anchor being coupled to the second body portion, wherein the first body portion of the retainer body is pivotable relative to the second body portion about the longitudinal fold axis so that the first and second anchors are adjustable from a first configuration in which the flexible tines extend outwardly away from one another to a second configuration in which the flexible tines extend generally in a same direction; and wherein the first body portion and the second body portions define a cutout region therebetween at a proximal end opposite from the first and second anchors in the first configuration to provide visualization and access to a surface under the retainer body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An anchor device for securing the position of a medical instrument, the anchor device comprising:
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a retainer body comprising a first body portion that is pivotably coupled to a second body portion about a longitudinal fold axis; and first and second anchors that extend distally from a 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, the first anchor being coupled to the first body portion and the second anchor being coupled to the second body portion, wherein the first body portion of the retainer body is pivotable relative to the second body portion about the longitudinal fold axis so that the first and second anchors are adjustable from a first configuration in which the flexible tines extend outwardly away from one another to a second configuration in which the flexible tines extend generally in a same direction; and
wherein the first body portion and the second body portions define a cutout region therebetween in the first configuration to provide visualization and access to a surface under the retainer body;wherein the first and second body portions include first and second tabs, respectively, at a proximal end of the retainer body, wherein the first and second tabs define the cutout region. - View Dependent Claims (13)
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14. A system for securing the position of a medical instrument, the system comprising:
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an adapter including;
a hub portion that is elastically deformable and configured to substantially surround and releasably engage with an outer surface of a medical instrument, and a second portion having one or more engagement members extending outwardly from the hub portion; andan anchor device comprising; a retainer body comprising a first body portion that is pivotably coupled to a second body portion about a longitudinal fold axis, and one or more anchor engagement portions being configured to releasably couple with the one or more engagement members extending outwardly from the hub portion of the adapter; and first and second anchors that extend distally from a 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, the first anchor being coupled to the first body portion and the second anchor being coupled to the second body portion, wherein the first body portion of the retainer body is pivotable relative to the second body portion about the longitudinal fold axis so that the first and second anchors are adjustable from a first configuration in which the flexible tines extend outwardly away from one another to a second configuration in which the flexible tines extend generally in a same direction; and wherein the first body portion and the second body portions define a cutout region therebetween at a proximal end opposite from the first and second anchors in the first configuration to provide visualization and access to a surface under the retainer body. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21)
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Specification