Temporary retention device
First Claim
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1. A method for using an anchor device to subcutaneously anchor a catheter to a patient, comprising:
- inserting a catheter through an opening in a skin layer and into a targeted body lumen;
advancing first and second flexible anchors of an anchor device through the same opening in the skin layer and into a subcutaneous region adjacent to and under the skin layer, wherein the anchor device comprises;
a catheter retainer body including a catheter engagement portion extending in a longitudinal direction, the catheter engagement portion being configured to releasably engage with an outer surface of the catheter, a longitudinal extension apparatus that is secured to the catheter retainer body, that is spaced apart from the catheter engagement portion, and that extends in a direction that is generally parallel to the longitudinal direction of the catheter engagement portion, wherein the first and second flexible anchors are configured to extending outwardly away from a distal region of the longitudinal extension apparatus, wherein a free end of the first flexible anchor terminates at a non-sharp tip, and wherein a free end of the second flexible anchor terminates at a non-sharp tip;
deploying the first and second flexible anchors in the subcutaneous region under the skin layer such that the free end of the first flexible anchor extends generally oppositely away from the free end of the second flexible anchor and such that the first and second flexible anchors abut an underside of the skin layer,wherein the catheter retainer body engages with the outer surface of the catheter to anchor the catheter relative to the opening in the skin layer.
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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.
189 Citations
20 Claims
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1. A method for using an anchor device to subcutaneously anchor a catheter to a patient, comprising:
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inserting a catheter through an opening in a skin layer and into a targeted body lumen; advancing first and second flexible anchors of an anchor device through the same opening in the skin layer and into a subcutaneous region adjacent to and under the skin layer, wherein the anchor device comprises;
a catheter retainer body including a catheter engagement portion extending in a longitudinal direction, the catheter engagement portion being configured to releasably engage with an outer surface of the catheter, a longitudinal extension apparatus that is secured to the catheter retainer body, that is spaced apart from the catheter engagement portion, and that extends in a direction that is generally parallel to the longitudinal direction of the catheter engagement portion, wherein the first and second flexible anchors are configured to extending outwardly away from a distal region of the longitudinal extension apparatus, wherein a free end of the first flexible anchor terminates at a non-sharp tip, and wherein a free end of the second flexible anchor terminates at a non-sharp tip;deploying the first and second flexible anchors in the subcutaneous region under the skin layer such that the free end of the first flexible anchor extends generally oppositely away from the free end of the second flexible anchor and such that the first and second flexible anchors abut an underside of the skin layer, wherein the catheter retainer body engages with the outer surface of the catheter to anchor the catheter relative to the opening in the skin layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for using an anchor device to subcutaneously anchor a medical device to a patient, comprising:
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inserting a medical device through an opening in a skin layer so that a proximal portion of the medical device resides external to the skin layer and a distal portion of the medical device resides in a targeted portion of a body; deploying first and second flexible anchors of an anchor device through the same opening in the skin layer and into a subcutaneous region adjacent to and under the skin layer such that a free end of the first flexible anchor extends generally oppositely away from a free end of the second flexible anchor and such that the first and second flexible anchors abut an underside of the skin layer, wherein the anchor device comprises; a retainer body comprising an elongate surface configured to releasably engage with an outer surface of the medical device; and an anchor mechanism contacting the retainer body and being spaced apart from the elongate surface of the retainer body, the anchor mechanism including;
a longitudinal extender apparatus secured to the catheter retainer body, and said first and second flexible anchors extending outwardly away from a distal region of the longitudinal extender apparatus, each of the first and second flexible anchors terminating at a non-sharp tip, wherein at least a portion of the longitudinal extender apparatus is laterally offset from the channel of the retainer body. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification