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 adapted to pass the anchor body in a first direction relative to a flexible member upon application of a cinching force, wherein the locking mechanism is further adapted to impart a locking force upon the flexible member when the anchor body is urged in a second direction opposite to the first direction, and wherein the locking force is greater than the cinching force.
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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 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.
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Citations
135 Claims
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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 adapted to pass the anchor body in a first direction relative to a flexible member upon application of a cinching force, wherein the locking mechanism is further adapted to impart a locking force upon the flexible member when the anchor body is urged in a second direction opposite to the first direction, and wherein the locking force is greater than the cinching force. - 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, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 80, 81, 82)
- an anchor body adapted to be delivered through a hollow member for placement against a tissue surface; and
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51. An anchor system for implantation in a body, comprising:
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a first anchor body adapted to be delivered through a hollow member for placement against a first region of tissue surface;
a second anchor body adapted to be delivered through the hollow member for placement against a second region of tissue surface;
a flexible member extending between the first anchor body and the second anchor body, wherein the second anchor body comprises a locking mechanism adapted to allow the second anchor body to pass in a distal direction relative to the suture upon application of a cinching force on the second anchor body, and wherein the locking mechanism is adapted to impart a locking force upon the flexible member when the second anchor body is urged in a proximal direction. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 83, 84, 85, 86, 87)
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88. A tissue cinching system, comprising:
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an elongate member having at least a portion which is hollow;
at least one anchor body adapted to be delivered through the hollow portion of the elongate member and placed against a surface of tissue;
a locking mechanism adapted to allow the anchor body to pass in a distal direction relative to the suture upon application of a cinching force on the anchor body; and
a flexible member for passage through the anchor body. - View Dependent Claims (89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103)
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104. 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 self-locking mechanism adapted to allow the anchor body to pass distally over the suture while preventing the anchor body from moving proximally over the flexible member. - View Dependent Claims (105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119)
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120. A method for delivering a cinching anchor to a region of tissue to be cinched, comprising:
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ejecting an anchor body in proximity to a tissue surface to be cinched from a hollow member such that the anchor body reconfigures from a delivery configuration to a deployed configuration;
urging the anchor body distally along a flexible member into contact against the tissue surface; and
locking the anchor body with a locking mechanism adapted to allow the anchor body to pass distally over the flexible member while preventing the anchor body from moving proximally over the flexible member. - View Dependent Claims (121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135)
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Specification