Temporary retention device
First Claim
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1. A method of using flexible retention tines, comprising:
- inserting a catheter through an opening in a skin layer and into a targeted body vessel;
advancing one or more retention tines of an anchor device through the same opening in the skin layer and into a subcutaneous region under the skin layer proximate the targeted body vessel, the retention tines being adjustable to a deployed orientation in which each retention tine has a longitudinal convex curvature extending outwardly toward a free end of the retention tine, the free end of each retention tine terminating at a dull or rounded tip; and
arranging the one or more retention tines in the deployed orientation in the subcutaneous region under the skin layer such that the longitudinal convex curvature of each retention tine bows toward an underside of the skin layer,wherein the anchor device releasably attaches to an outer surface of the catheter to secure the catheter relative to the opening in the skin layer while the catheter is arranged in the targeted body vessel.
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Abstract
A retention device for anchoring indwelling catheters, sheath introducers, feeding tubes, ostomy bags or other medical devices beneath the skin of a patient includes an deployable section coupled to a medical device; following introduction into a patient, the deployable section is subcutaneously deployed, securely anchoring the device and coupled medical device for the duration of treatment.
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Citations
29 Claims
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1. A method of using flexible retention tines, comprising:
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inserting a catheter through an opening in a skin layer and into a targeted body vessel; advancing one or more retention tines of an anchor device through the same opening in the skin layer and into a subcutaneous region under the skin layer proximate the targeted body vessel, the retention tines being adjustable to a deployed orientation in which each retention tine has a longitudinal convex curvature extending outwardly toward a free end of the retention tine, the free end of each retention tine terminating at a dull or rounded tip; and arranging the one or more retention tines in the deployed orientation in the subcutaneous region under the skin layer such that the longitudinal convex curvature of each retention tine bows toward an underside of the skin layer, wherein the anchor device releasably attaches to an outer surface of the catheter to secure the catheter relative to the opening in the skin layer while the catheter is arranged in the targeted body vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of using flexible retention tines, comprising:
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inserting a catheter through an opening in a skin layer and into a targeted body vessel; advancing one or more retention tines of an anchor device through the same opening in the skin layer and into a subcutaneous region adjacent to the skin layer proximate the targeted body vessel, the retention tines being flexibly biased toward a deployed orientation in which each retention tine extends outwardly toward a free end terminating at a dull or rounded tip; and arranging the one or more retention tines in the deployed orientation in the subcutaneous region adjacent to the skin layer such that a convexly curved portion of each retention tine bows outwardly toward an underside of the skin layer and abuts with the underside of the skin layer when the retention tines are arranged in the deployed orientation in the subcutaneous region adjacent to the skin layer, wherein the anchor device receives the catheter to secure the catheter relative to the opening in the skin layer. - View Dependent Claims (19, 20, 21, 22, 23)
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24. A method of using flexible retention tines, comprising:
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inserting a catheter through an opening in a skin layer and into a targeted body vessel; advancing one or more retention tines of an anchor device through the same opening in the skin layer and into a subcutaneous region under the skin layer proximate the targeted body vessel, the retention tines being adjustable to a deployed orientation in which each retention tine extends outwardly toward a free end, the free end of each retention tine terminating at a dull or rounded tip; and arranging the one or more retention tines in the deployed orientation in the subcutaneous region under the skin layer such that a convexly curved portion of each retention tine bows outwardly toward an underside of the skin layer, wherein the anchor device receives the catheter to secure the catheter relative to the opening in the skin layer, wherein the anchor device comprises a lumen to slideably receive the catheter. - View Dependent Claims (25, 26, 27, 28, 29)
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Specification