Devices and systems for docking a heart valve
First Claim
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1. An expandable docking station for an expandable valve comprising:
- a valve seat that is substantially unexpandable beyond a deployed size;
one or more sealing portions connected to the valve seat that are constructed to expand radially outward of the valve seat and provide a seal over a range of sizes; and
one or more retaining portions connected to the one or more sealing portions that are configured to retain the docking station at a deployed position;
wherein the valve seat and the one or more sealing portions act as an isolator that reduces or prevents radial outward forces of an expandable valve in the valve seat from being transferred to the one or more sealing portions or the one or more retaining portions.
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Abstract
Expandable docking stations for docking an expandable valve can include a valve seat, one or more sealing portions, and one or more retaining portions. The valve seat can be unexpandable or substantially unexpandable beyond a deployed size. The one or more sealing portions are connected to the valve seat and extend radially outward of the valve seat. The one or more sealing portions are constructed to expand outward of the valve seat and provide a seal over a range of sizes. The one or more retaining portions are connected to the one or more sealing portions. The one or more retaining portions are configured to retain the docking station at a deployed position.
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Citations
24 Claims
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1. An expandable docking station for an expandable valve comprising:
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a valve seat that is substantially unexpandable beyond a deployed size; one or more sealing portions connected to the valve seat that are constructed to expand radially outward of the valve seat and provide a seal over a range of sizes; and one or more retaining portions connected to the one or more sealing portions that are configured to retain the docking station at a deployed position; wherein the valve seat and the one or more sealing portions act as an isolator that reduces or prevents radial outward forces of an expandable valve in the valve seat from being transferred to the one or more sealing portions or the one or more retaining portions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system comprising:
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an expandable docking station that includes; a valve seat that expands to a deployed size; one or more sealing portions connected to the valve seat that are constructed to expand radially outward of the valve seat and provide a seal over a range of sizes of expansion; and one or more retaining portions connected to the one or more sealing portions that are configured to retain the docking station at a deployed position; an expandable valve that comprises; an expandable frame that is expandable to engage the valve seat of the docking station; a valve element connected to the expandable frame; wherein the expandable docking station and expandable valve are configured such that, when implanted in a portion of a circulatory system, a radial outward force applied by the sealing portions to the portion of the circulatory system when within the range of sizes is less than ½
of a radial outward force applied by the expandable frame to the valve seat. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A method of implanting an expandable valve in a docking station comprising:
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expanding a docking station such that a valve seat of the docking station expands to a valve seat deployed size and a sealing portion expands to a sealing size that is within a range of sealing sizes; expanding a frame of an expandable valve to engage the valve seat of the docking station; and wherein a radial outward force applied by the sealing portions over the range of sealing sizes is less than ½
of a radial outward force applied by the expandable frame to the valve seat after expanding the frame. - View Dependent Claims (18, 19)
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20. An expandable docking station comprising:
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a valve seat that is unexpandable beyond a deployed size; a sealing portion connected to the valve seat constructed to expand radially outward of the valve seat and provide a seal between the valve seat and surrounding tissue, when implanted, to prevent leakage around the valve; and retaining portions coupled to the one or more sealing portions that are configured to retain the docking station at a deployed position; wherein the docking station acts as an isolator that reduces or prevents radial outward forces of an expandable valve in the valve seat from being transferred to one or more of the sealing portion and the retaining portions. - View Dependent Claims (21, 22, 23, 24)
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Specification