Socketed portal anchors and methods of using same
First Claim
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1. A sub-dermal anchor configured to secure a medical device implanted via a portal formed in a mammalian body, the anchor comprising:
- a base configured to secure to tissue surrounding the portal, the base comprising an upper side, lower side, outer edge, and inner edge, the inner edge defining an opening passing between the upper and lower sides, the opening forming a socket, wherein the base is a single, unitary base; and
an elastomeric retention member comprising a spherical surface, the retention member configured to be received within the socket such that the retention member may rotate therein about three mutually perpendicular axes, the retention member defining a bore formed therethrough, the bore configured to permit passage of the medical device through the base from the upper side to the lower side;
wherein the retention member is positioned within the socket such that an uppermost surface of the retention member is at an elevation below the upper side of the base and the retention member is recessed into the portal;
wherein the sub-dermal anchor is adapted to be implanted sub-dermally on the mammalian body.
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Abstract
Anchors for securing a medical device relative to a body portal, wherein the anchors may accommodate most any implantation trajectory through the portal. Such anchors may further secure the device along any such trajectory without imparting undesirable biasing forces that may shift the device from its intended implanted location. In some embodiments, the anchor is configured as a burr hole anchor including a spherical member contained in a socket of the anchor such that orientation of the spherical member is permitted about three mutually perpendicular axes.
83 Citations
13 Claims
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1. A sub-dermal anchor configured to secure a medical device implanted via a portal formed in a mammalian body, the anchor comprising:
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a base configured to secure to tissue surrounding the portal, the base comprising an upper side, lower side, outer edge, and inner edge, the inner edge defining an opening passing between the upper and lower sides, the opening forming a socket, wherein the base is a single, unitary base; and an elastomeric retention member comprising a spherical surface, the retention member configured to be received within the socket such that the retention member may rotate therein about three mutually perpendicular axes, the retention member defining a bore formed therethrough, the bore configured to permit passage of the medical device through the base from the upper side to the lower side;
wherein the retention member is positioned within the socket such that an uppermost surface of the retention member is at an elevation below the upper side of the base and the retention member is recessed into the portal;wherein the sub-dermal anchor is adapted to be implanted sub-dermally on the mammalian body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification