Tissue anchors with hemostasis seal
First Claim
1. Apparatus for delivery through tissue in a constrained state within a deployment tool, the apparatus comprising a tissue anchor, which comprises:
- a shaft, which comprises a seal;
a head connected to a proximal portion of the shaft; and
a tissue-coupling element, which extends from a distal end of the shaft,wherein, when the tissue anchor is unconstrained by the deployment tool;
the shaft has a central longitudinal axis,the head is coaxial with the central longitudinal axis, andthe tissue-coupling element is generally orthogonal to the central longitudinal axis of the shaft and is shaped such that if the tissue-coupling element were to be projected onto a plane that is perpendicular to the central longitudinal axis, (a) at least 80% of an area of a projection of the tissue-coupling element on the plane would fall within a first angle of 180 degrees in the plane having a vertex at the central longitudinal axis, and (b) the area would partially overlap, at least 3 mm from the vertex, both rays of a second angle of between 45 and 180 degrees in the plane having the vertex at the central longitudinal axis, wherein both the rays fall within the first angle.
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Accused Products
Abstract
A tissue anchor is provided that includes a head connected to a shaft, and a tissue-coupling element extending from the shaft. When the tissue anchor is unconstrained, the head is coaxial with an axis of the shaft, and the tissue-coupling element is generally orthogonal to the axis and is shaped such that if the tissue-coupling element were to be projected onto a plane that is perpendicular to the axis, (a) at least 80% of an area of a projection of the tissue-coupling element on the plane would fall within a first angle of 180 degrees in the plane having a vertex at the axis, and (b) the area would partially overlap, at least 3 mm from the vertex, both rays of a second angle of between 45 and 180 degrees in the plane having the vertex at the axis. Other embodiments are also described.
114 Citations
31 Claims
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1. Apparatus for delivery through tissue in a constrained state within a deployment tool, the apparatus comprising a tissue anchor, which comprises:
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a shaft, which comprises a seal; a head connected to a proximal portion of the shaft; and a tissue-coupling element, which extends from a distal end of the shaft, wherein, when the tissue anchor is unconstrained by the deployment tool; the shaft has a central longitudinal axis, the head is coaxial with the central longitudinal axis, and the tissue-coupling element is generally orthogonal to the central longitudinal axis of the shaft and is shaped such that if the tissue-coupling element were to be projected onto a plane that is perpendicular to the central longitudinal axis, (a) at least 80% of an area of a projection of the tissue-coupling element on the plane would fall within a first angle of 180 degrees in the plane having a vertex at the central longitudinal axis, and (b) the area would partially overlap, at least 3 mm from the vertex, both rays of a second angle of between 45 and 180 degrees in the plane having the vertex at the central longitudinal axis, wherein both the rays fall within the first angle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 29)
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28. A method comprising:
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providing a tissue anchor that comprises (a) a shaft, (b) a head connected to a proximal portion of the shaft, which comprises a seal, and (c) a tissue-coupling element, which extends from a distal end of the shaft; introducing, during a transcatheter procedure, the tissue anchor into a cardiac chamber of a heart of a subject, while the tissue-coupling element is constrained by a deployment tool; delivering the tissue-coupling element through a wall of the heart; and at least partially releasing the tissue anchor from the deployment tool such that (a) the tissue-coupling element is unconstrained by the deployment tool, (b) the head is coaxial with a central longitudinal axis of the shaft, and (c) the tissue-coupling element is generally orthogonal to the central longitudinal axis of the shaft and is shaped such that if the tissue-coupling element were to be projected onto a plane that is perpendicular to the central longitudinal axis, (i) at least 80% of an area of a projection of the tissue-coupling element on the plane would fall within a first angle of 180 degrees in the plane having a vertex at the central longitudinal axis, and (ii) the area would partially overlap, at least 3 mm from the vertex, both rays of a second angle of between 45 and 180 degrees in the plane having the vertex at the central longitudinal axis, wherein both the rays fall within the first angle. - View Dependent Claims (30, 31)
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Specification