Anchor systems and methods
First Claim
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1. An anchor system for securing a medical instrument, comprising:
- a retainer body to couple to a catheter;
a plurality of flexible anchors releasably coupled to 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;
an actuator that, when activated, moves the anchors from a non-deployed position to a deployed position in which the anchors flexible anchors extend distally from the retainer body and into the subcutaneous region; and
a retention member coupled to the retainer body that directly engages an outer circumferential surface of the catheter when the retainer body couples to the catheter, wherein the retention member defines a gripping channel that at least partially surrounds the outer circumferential surface of the catheter when the retention member engages the catheter, wherein the gripping channel is at least partially defined by a wall comprising a silicone material to press against the outer circumferential surface of the catheter when the retention member engages the catheter.
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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
33 Claims
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1. An anchor system for securing a medical instrument, comprising:
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a retainer body to couple to a catheter; a plurality of flexible anchors releasably coupled to 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; an actuator that, when activated, moves the anchors from a non-deployed position to a deployed position in which the anchors flexible anchors extend distally from the retainer body and into the subcutaneous region; and a retention member coupled to the retainer body that directly engages an outer circumferential surface of the catheter when the retainer body couples to the catheter, wherein the retention member defines a gripping channel that at least partially surrounds the outer circumferential surface of the catheter when the retention member engages the catheter, wherein the gripping channel is at least partially defined by a wall comprising a silicone material to press against the outer circumferential surface of the catheter when the retention member engages the catheter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. An anchor system for securing a medical instrument, comprising:
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a retainer body to couple with a medical instrument, wherein a retention member coupled to the retainer body directly engages an outer surface of the medical instrument when the retainer body couples to the medical instrument, wherein the retention member defines an inwardly facing wall comprising a compliant gripping material that compresses against, and applies a holding force to, the outer surface of the medical instrument when the retention member engages the medical instrument; first and second anchors that are deployable through a skin penetration point and into subcutaneous region so as to secure the retainer body relative to the skin penetration point; a separable delivery device including an actuator that, when activated, moves the first and second anchors from a non-deployed position to a deployed position in which the anchors flexible anchors extend distally from the retainer body and into the subcutaneous region along an underside of a skin layer; and a release member that releasably couples the first and second anchors to the retainer body, the release member being adjustable from a first position to a second position in which the first and second anchors are decoupled from the retainer body. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. An anchor system for securing a medical instrument, comprising:
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a retainer body to releasably couple to a catheter that occupies a skin penetration point, wherein the retainer body includes an adjustable retention member that directly engages an outer circumferential surface of the catheter when the retainer body releasably couples to the catheter; and first and second flexible anchors coupled to the retainer body and being configured to extend distally from a distal end of the retainer body, the first flexible anchor comprising a first curved tine and the second flexible anchor comprising a second curved tine, the first and second curved tines that is being deployable in a subcutaneous region adjacent to a skin layer to secure the retainer body relative to the skin penetration point, wherein the first and second curved tines are positioned distal to the distal end of the retainer body when deployable in the subcutaneous region adjacent to the skin layer, wherein the first and second anchors are retained in a non-deployed position prior to insertion through the skin penetration point and are actuatable to a deployed position in which the first and second flexible anchors extend distally from the distal end of the retainer body and through the skin penetration point occupied by the catheter. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33)
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Specification