Systems and methods for anchoring medical devices
First Claim
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1. A method of using a medical anchor system, comprising:
- advancing an anchor device toward a skin penetration point of a user while the anchor device is in a folded condition so that a plurality of subcutaneous tines of the anchor device are generally adjacent to each other;
inserting the subcutaneous tines through the skin penetration point and into a subcutaneous region adjacent to an underside of a skin layer while the anchor device is in the folded condition;
adjusting the anchor device to a non-folded condition after the subcutaneous tines are inserted into the subcutaneous layer so that subcutaneous tines are in an anchored position different from the folded condition; and
securing a medical instrument to the anchor device, wherein securing the medical instrument comprises pivoting a cap of the anchor device in relation to a retainer base of the anchor device about a pivot axis defined by connection between the retainer base and the cap during adjustment between a first arrangement and a second arrangement, wherein the medical instrument is received in a channel that is defined between the cap and the retainer base when the cap and the retainer base are in the first arrangement, and wherein the cap is removable from the medical instrument when the cap and the retainer base are in the second arrangement.
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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 or the like) in place relative to a skin penetration point using subcutaneous anchors. In some implementations, the medical instrument can be coupled to the anchor device using a snap-lock cap mechanism.
97 Citations
20 Claims
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1. A method of using a medical anchor system, comprising:
- advancing an anchor device toward a skin penetration point of a user while the anchor device is in a folded condition so that a plurality of subcutaneous tines of the anchor device are generally adjacent to each other;
inserting the subcutaneous tines through the skin penetration point and into a subcutaneous region adjacent to an underside of a skin layer while the anchor device is in the folded condition;
adjusting the anchor device to a non-folded condition after the subcutaneous tines are inserted into the subcutaneous layer so that subcutaneous tines are in an anchored position different from the folded condition; and
securing a medical instrument to the anchor device, wherein securing the medical instrument comprises pivoting a cap of the anchor device in relation to a retainer base of the anchor device about a pivot axis defined by connection between the retainer base and the cap during adjustment between a first arrangement and a second arrangement, wherein the medical instrument is received in a channel that is defined between the cap and the retainer base when the cap and the retainer base are in the first arrangement, and wherein the cap is removable from the medical instrument when the cap and the retainer base are in the second arrangement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- advancing an anchor device toward a skin penetration point of a user while the anchor device is in a folded condition so that a plurality of subcutaneous tines of the anchor device are generally adjacent to each other;
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12. A method of using a medical anchor system, comprising:
- advancing an anchor device toward a skin penetration point of a user while the anchor device is in a folded condition so that a plurality of subcutaneous tines of the anchor device are generally adjacent to each other;
inserting the subcutaneous tines through the skin penetration point and into a subcutaneous region adjacent to an underside of a skin layer while the anchor device is in the folded condition;
adjusting the anchor device to a non-folded condition after the subcutaneous tines are inserted into the subcutaneous layer so that subcutaneous tines are in an anchored position different from the folded condition; and
securing a medical instrument to the anchor device, wherein securing the medical instrument comprises pivoting a cap of the anchor device in relation to a retainer base of the anchor device about a pivot axis defined by connection between the retainer base and the cap, wherein the medical instrument is received in a channel that is defined between the cap and the retainer base;
wherein the cap comprises a first connector at the location of connection with the retainer base, and a second connector that is fixedly positioned relative to the first connector such that the first and second connectors are spaced a fixed distance when the cap is pivoted about the pivot axis. - View Dependent Claims (13)
- advancing an anchor device toward a skin penetration point of a user while the anchor device is in a folded condition so that a plurality of subcutaneous tines of the anchor device are generally adjacent to each other;
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14. A method of using a medical anchor system, comprising:
- advancing an anchor device toward a skin penetration point of a user while the anchor device is in a folded condition so that a plurality of subcutaneous tines of the anchor device are generally adjacent to each other;
inserting the subcutaneous tines through the skin penetration point and into a subcutaneous region adjacent to an underside of a skin layer while the anchor device is in the folded condition;
adjusting the anchor device to a non-folded condition after the subcutaneous tines are inserted into the subcutaneous layer so that subcutaneous tines are in an anchored position different from the folded condition; and
securing a medical instrument to the anchor device after the subcutaneous tines are adjusted to the anchored position, wherein securing the medical instrument comprises pivoting a cap of the anchor device in relation to a retainer base of the anchor device about a pivot axis defined by connection between the retainer base and the cap during adjustment between a first arrangement and a second arrangement, wherein the medical instrument is received in a channel that is defined between the cap and the retainer base when the cap and the retainer base are in the first arrangement, and wherein the cap is removable from the medical instrument when the cap and the retainer base are in the second arrangement. - View Dependent Claims (15, 16, 17, 18, 19, 20)
- advancing an anchor device toward a skin penetration point of a user while the anchor device is in a folded condition so that a plurality of subcutaneous tines of the anchor device are generally adjacent to each other;
Specification