Apparatus and methods for positioning and securing anchors
First Claim
1. An anchor assembly, comprising:
- a basket anchor having a tubular body with a lumen extending through the tubular body;
a flexible element extending at least partway through the lumen;
a first uni-directional lever extending inwardly more than half way across the lumen, at a first acute angle towards a first end of the tubular body;
a second uni-directional lever extending inwardly more than half way across the lumen, at a second acute angle towards the first end of the tubular body;
with the first and second levers allowing the flexible member to move through the lumen, in a first direction, but not in a second direction opposite to the first direction, relative to the tubular body.
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Accused Products
Abstract
Apparatus and methods for positioning and securing 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 unidirectional 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.
462 Citations
18 Claims
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1. An anchor assembly, comprising:
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a basket anchor having a tubular body with a lumen extending through the tubular body; a flexible element extending at least partway through the lumen; a first uni-directional lever extending inwardly more than half way across the lumen, at a first acute angle towards a first end of the tubular body; a second uni-directional lever extending inwardly more than half way across the lumen, at a second acute angle towards the first end of the tubular body; with the first and second levers allowing the flexible member to move through the lumen, in a first direction, but not in a second direction opposite to the first direction, relative to the tubular body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An anchor assembly comprising:
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a basket anchor including a tubular body having a first sidewall and a second sidewall substantially opposite from the first sidewall; a length of suture extending through the tubular body; a first flex arm cut out from the first side wall and bent inwardly at a first acute angle to the tubular body, and forming a first opening in the first side wall, with the first flex arm extending inwardly more than half way across the tubular body; a second flex arm cut out from the second side wall and bent inwardly at a second acute angle to the tubular body, and forming a second opening in the second side wall, with the second flex arm extending inwardly more than half way across the tubular body; with the first and second flex arms allowing the suture to be pulled through the tubular body only in one direction. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18)
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Specification