Anchoring a Medical Instrument
First Claim
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1. A system for subcutaneously anchoring a catheter instrument, comprising:
- a catheter hub body that provides fluid communication from one or more catheter lines to a distal catheter portion that is insertable through a skin penetration point;
a subcutaneous anchor mechanism movably coupled to the catheter hub body, the subcutaneous anchor mechanism having one or more flexible anchors that extend outwardly away from the catheter hub body when in a deployed orientation in a subcutaneous layer proximate to the skin penetration point;
an actuator that is manually adjustable relative to the catheter hub body so as to shift the flexible anchors from a non-deployed orientation to the deployed orientation;
a locking device that is movable relative to the actuator so as to shift from an actuator-unlocked position to an actuator-locked position which the locking device is arranged between the catheter hub body and the actuator when the flexible anchors are in the deployed orientation, wherein the locking device mates with an outer circumference of the one or more catheter lines while in the actuator-locked position.
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Abstract
Some embodiments of a medical anchor device include an elongate body coupled with deployable subcutaneous anchors to secure a catheter instrument (or other medical instrument) in place relative to a skin penetration point. In some circumstances, the elongate body may be in the form of catheter hub body, and the subcutaneous anchors can be deployed from the hub body by adjustment of a movable actuator. A locking member can interact with the actuator so as to retain the actuator in the deployed orientation during the medical procedure.
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Citations
23 Claims
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1. A system for subcutaneously anchoring a catheter instrument, comprising:
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a catheter hub body that provides fluid communication from one or more catheter lines to a distal catheter portion that is insertable through a skin penetration point; a subcutaneous anchor mechanism movably coupled to the catheter hub body, the subcutaneous anchor mechanism having one or more flexible anchors that extend outwardly away from the catheter hub body when in a deployed orientation in a subcutaneous layer proximate to the skin penetration point; an actuator that is manually adjustable relative to the catheter hub body so as to shift the flexible anchors from a non-deployed orientation to the deployed orientation; a locking device that is movable relative to the actuator so as to shift from an actuator-unlocked position to an actuator-locked position which the locking device is arranged between the catheter hub body and the actuator when the flexible anchors are in the deployed orientation, wherein the locking device mates with an outer circumference of the one or more catheter lines while in the actuator-locked position. - View Dependent Claims (5, 6, 7, 8, 9, 11, 12, 22)
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2. A system for subcutaneously anchoring a catheter instrument, comprising:
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a catheter hub body that provides fluid communication from one or more catheter lines to a distal catheter portion that is insertable through a skin penetration point; a subcutaneous anchor mechanism movably coupled to the catheter hub body, the subcutaneous anchor mechanism having one or more flexible anchors that extend outwardly away from the catheter hub body when in a deployed orientation in a subcutaneous layer proximate to the skin penetration point; an actuator that is at least partially housed in the catheter hub body and that is manually adjustable relative to the catheter hub body so as to shift the flexible anchors from a non-deployed orientation to the deployed orientation; and an external locking device that is movable relative to the actuator so as to shift from an actuator-unlocked position to an actuator-locked position which the external locking device abuts with an exterior surface of the catheter hub body, is positioned outside of the catheter hub body and, is arranged between the catheter hub body and the actuator when the flexible anchors are in the deployed orientation; wherein when the external locking device is shifted to the actuator-locked position, the external locking device limits movement of the actuator relative to the catheter hub body and hinders migration the flexible anchors from the deployed position toward the non-deployed position. - View Dependent Claims (3, 4, 10, 23)
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13. A medical anchoring system, comprising:
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an elongate body that provides fluid communication from an internal lumen to a distal catheter portion that is insertable through a skin penetration point; a subcutaneous anchor mechanism movably coupled to the elongate body, the subcutaneous anchor mechanism including flexible anchors that are adjustable between a non-deployed orientation in which the flexible anchors at least partially reside inside the elongate body and a deployed orientation in which the flexible anchors extend outwardly from the elongate body into a subcutaneous layer proximate to the skin penetration point; an actuator including an external portion that is movable away from the elongate body so as to shift the flexible anchors from the non-deployed orientation to the deployed orientation; and a locking device that is manually movable to fit between a proximal end of the elongate body and the external portion of the actuator that is proximal of the proximal end of the elongate body so as to lock the flexible anchors in the deployed orientation. - View Dependent Claims (14, 15, 16, 17, 21)
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18. A method of anchoring a catheter instrument, comprising:
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inserting at least a portion of a catheter hub body through a skin penetration point so that a distal catheter portion extending from the catheter hub body is advanced into a blood vessel; adjusting an actuator to an operative position relative to the catheter hub body so as to deploy a subcutaneous anchor mechanism in a subcutaneous layer proximate to the skin penetration point, the subcutaneous anchor mechanism comprising one or more flexible anchors that extend outwardly from the catheter hub body to abut an underside of a skin layer when deployed in the subcutaneous layer; moving a locking device relative to the actuator and the catheter hub body so that the locking device retains the actuator in the operative position by fitting between a proximal end of the catheter hub body and an external portion of the actuator that opposes the proximal end of the catheter hub body while the locking device is arranged externally to an exterior surface of the catheter hub body. - View Dependent Claims (19, 20)
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Specification