APPARATUS AND METHODS FOR FORMING AND SECURING GASTROINTESTINAL TISSUE FOLDS
First Claim
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1. Apparatus for securing a tissue fold within a patient, the apparatus comprising:
- a plication apparatus having a distal region adapted to engage a tissue fold within a patient; and
an anchor assembly having proximal and distal anchors connected by a suture, said suture having a proximal end and a distal end, said anchor assembly being adapted for adjustment of the length of suture disposed between the proximal and distal anchors while the anchor assembly is disposed across the tissue fold;
an anchor delivery system adapted to deploy and secure the anchor assembly across the tissue fold, said anchor delivery system comprising a flexible delivery tube having a lumen, and a hollow needle disposed within the lumen;
wherein the anchor assembly passes through the hollow needle during delivery;
wherein the anchor delivery system further comprises a trap mechanism located substantially within a distal region of said anchor delivery system, said trap mechanism being adapted to reversibly trap the suture at or near its proximal end to facilitate adjustment of the length of suture disposed between the proximal and distal anchors, and wherein the trap mechanism is adapted to release the suture after the length of suture has been adjusted.
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Abstract
Apparatus and methods are provided for forming a gastrointestinal tissue fold by engaging tissue at a first tissue contact point, moving the first tissue contact point from a position initially distal to a second tissue contact point to a position proximal of the second contact point to form a tissue fold, and extending an anchor assembly through the tissue fold near the second tissue contact point. Adjustable anchor assemblies, as well as anchor delivery systems, are also provided.
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Citations
17 Claims
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1. Apparatus for securing a tissue fold within a patient, the apparatus comprising:
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a plication apparatus having a distal region adapted to engage a tissue fold within a patient; and an anchor assembly having proximal and distal anchors connected by a suture, said suture having a proximal end and a distal end, said anchor assembly being adapted for adjustment of the length of suture disposed between the proximal and distal anchors while the anchor assembly is disposed across the tissue fold; an anchor delivery system adapted to deploy and secure the anchor assembly across the tissue fold, said anchor delivery system comprising a flexible delivery tube having a lumen, and a hollow needle disposed within the lumen; wherein the anchor assembly passes through the hollow needle during delivery; wherein the anchor delivery system further comprises a trap mechanism located substantially within a distal region of said anchor delivery system, said trap mechanism being adapted to reversibly trap the suture at or near its proximal end to facilitate adjustment of the length of suture disposed between the proximal and distal anchors, and wherein the trap mechanism is adapted to release the suture after the length of suture has been adjusted. - View Dependent Claims (2, 3)
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4. Apparatus for securing a tissue fold within a patient, the apparatus comprising:
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an anchor delivery system adapted to deploy and secure an anchor assembly across a tissue fold, said anchor delivery system including an elongated body and a hollow needle disposed at or near a distal end of the elongated body; wherein said anchor assembly has proximal and distal anchors connected by a suture, said suture having a proximal end and a distal end, said anchor assembly being adapted for adjustment of the length of suture disposed between the proximal and distal anchors while the anchor assembly is disposed across the tissue fold; wherein the anchor delivery system further comprises a trap mechanism located substantially within a distal region of said anchor delivery system, said trap mechanism being adapted to reversibly trap the suture at or near its proximal end to facilitate adjustment of the length of suture disposed between the proximal and distal anchors, and wherein the trap mechanism is adapted to release the suture after the length of suture has been adjusted. - View Dependent Claims (5, 6, 7, 8)
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9. Apparatus for securing a tissue fold within a patient, the apparatus comprising:
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an anchor delivery system adapted to deploy and secure an anchor assembly across a tissue fold, said anchor delivery system including an elongated body and a hollow needle disposed at or near a distal end of the elongated body; wherein said anchor assembly has proximal and distal anchors connected by a suture, said suture having a proximal end and a distal end, said anchor assembly being adapted for adjustment of the length of suture disposed between the proximal and distal anchors; wherein the anchor delivery system further comprises a trap mechanism located substantially within a distal region of said anchor delivery system, said trap mechanism being adapted to reversibly trap the suture at or near its proximal end to facilitate adjustment of the length of suture disposed between the proximal and distal anchors, and wherein the trap mechanism is adapted to release the suture after the length of suture has been adjusted. - View Dependent Claims (10, 11, 12, 13)
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14. A method for securing a tissue fold within a patient, the method comprising:
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providing apparatus comprising an anchor assembly having proximal and distal anchors connected by an adjustable length of suture; deploying the distal anchor on a distal side of the tissue fold; deploying the proximal anchor on a proximal side of the tissue fold; trapping a proximal end of the suture; and adjusting the length of suture disposed between the proximal and distal anchors to secure the tissue fold. - View Dependent Claims (15, 16, 17)
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Specification