Apparatus and methods for forming gastrointestinal tissue approximations
First Claim
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1. Apparatus for forming a tissue fold in a tissue wall of a gastrointestinal lumen, comprising:
- a catheter having a flexible tube with a distal region, the catheter adapted to be inserted via a patient'"'"'s esophagus to position the distal region in the patient'"'"'s gastrointestinal lumen;
a tissue grabbing assembly disposed on the distal region, the tissue grabbing assembly defining a first tissue contact point for engaging a tissue wall of the patient'"'"'s gastrointestinal lumen;
a second tissue contact point disposed on the distal region at a location initially proximal of the first tissue contact point; and
means for moving the first tissue contact point to a tissue engaging position proximal of the second tissue contact point to a tissue folding position proximal of the second tissue contact point to form a tissue fold.
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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.
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Citations
28 Claims
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1. Apparatus for forming a tissue fold in a tissue wall of a gastrointestinal lumen, comprising:
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a catheter having a flexible tube with a distal region, the catheter adapted to be inserted via a patient'"'"'s esophagus to position the distal region in the patient'"'"'s gastrointestinal lumen;
a tissue grabbing assembly disposed on the distal region, the tissue grabbing assembly defining a first tissue contact point for engaging a tissue wall of the patient'"'"'s gastrointestinal lumen;
a second tissue contact point disposed on the distal region at a location initially proximal of the first tissue contact point; and
means for moving the first tissue contact point to a tissue engaging position proximal of the second tissue contact point to a tissue folding position proximal of the second tissue contact point to form a tissue fold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method of forming a tissue fold in a tissue wall of a gastrointestinal lumen, comprising:
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providing a catheter having a flexible tube with a distal region defining a first tissue contact point and a second tissue contact point;
positioning the distal region in a gastrointestinal lumen so that the first tissue contact point is disposed adjacent a tissue wall;
engaging and stretching the tissue wall at the point of engagement with the first tissue contact point;
contacting the second tissue contact point against the tissue wall; and
moving the first tissue contact point from a position initially distal to the second tissue contact point to a position proximal of the second tissue contact point to form a tissue fold. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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Specification