Apparatus and methods for positioning and securing anchors
First Claim
1. An anchor for implantation in a body, comprising:
- an anchor body adapted to be delivered through a hollow member for placement against a tissue surface; and
a locking mechanism defining a lumen for passage of a flexible member therethrough, wherein the locking mechanism is positioned proximally of the anchor body and has at least one arm biased to project into the lumen for contact against the flexible member such that the flexible member is uni-directionally advancable through the lumen relative to the anchor body.
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Accused Products
Abstract
Apparatus and methods for positioning and securing anchors are disclosed herein. The anchors are adapted to be delivered and implanted into or upon tissue, particularly tissue within the gastrointestinal system of a patient. The anchor is adapted to slide uni-directionally over suture such that a tissue plication may be cinched between anchors. A locking mechanism either within the anchor itself of positioned proximally of the anchor may allow for the uni-directional translation while enabling the anchor to be locked onto the suture if the anchor is pulled, pushed, or otherwise urged in the opposite direction along the suture. This uni-directional anchor locking mechanism facilitates the cinching of the tissue plication between the anchors and it may be utilized in one or several anchors in cinching a tissue fold.
295 Citations
60 Claims
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1. An anchor for implantation in a body, comprising:
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an anchor body adapted to be delivered through a hollow member for placement against a tissue surface; and
a locking mechanism defining a lumen for passage of a flexible member therethrough, wherein the locking mechanism is positioned proximally of the anchor body and has at least one arm biased to project into the lumen for contact against the flexible member such that the flexible member is uni-directionally advancable through the lumen relative to the anchor body. - 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)
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26. A method for cinching an anchor relative to tissue, comprising:
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ejecting an anchor body from a hollow member in proximity to the tissue;
urging the anchor body distally along a flexible member into contact against a surface of the tissue to be cinched; and
locking the anchor body with a locking mechanism having at least one arm biased to project into a lumen defined by the locking mechanism such that the at least one arm contacts the flexible member and inhibits proximal movement of the anchor body along the flexible member. - View Dependent Claims (27, 28, 29, 30, 31, 32)
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33. An anchor for implantation in a body, comprising:
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an anchor body adapted to be delivered through a hollow member for placement against a tissue surface; and
a locking mechanism positioned proximally of the anchor body and having at least one arm biased to project at an angle relative to the anchor body, wherein the arm defines an opening for passage of a flexible member therethrough such that the flexible member is uni-directionally advancable through the opening relative to the anchor body. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53)
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54. A method for cinching an anchor relative to tissue, comprising:
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ejecting an anchor body from a hollow member in proximity to the tissue;
urging the anchor body distally along a flexible member into contact against a surface of the tissue to be cinched; and
locking the anchor body with a locking mechanism having at least one arm biased to project at an angle relative to the anchor body such that the flexible member passes through an opening defined in the arm. - View Dependent Claims (55, 56, 57, 58, 59, 60)
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Specification