Methods for reduction of a gastric lumen
AssigneeUSGI Medical, Inc.
InventorsVahid Saadat, Richard C. Ewers, Eugene Chen, Rodney Brenneman
Life of this patent
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Abstract
A method of reducing the cross-sectional area of a gastrointestinal lumen is provided wherein a delivery catheter having a needle, one or more anchors disposed within the needle and a suture coupled to each anchor is advanced into the gastrointestinal lumen, the needle extended through the tissue wall, and an anchor ejected from a distal tip of the needle through the tissue wall. The needle is then repositioned against an opposing tissue wall, another anchor deployed from the needle through the opposing tissue wall, and the tissue walls approximated by applying tension to the sutures.
Claims31
A method for delivering an anchor for use in a gastric reduction system for reducing the cross-sectional area of a gastrointestinal lumen, comprising:
- providing a delivery catheter having a needle translatably disposed therein, a distal end, a stabilization device disposed at the distal end and one or more anchors disposed within the needle;
- advancing the delivery catheter into the gastrointestinal lumen;
- engaging the stabilization device to a tissue wall of the gastrointestinal lumen;
- advancing the needle through the tissue wall;
- ejecting an anchor from a distal tip of the needle.
A method for reducing the cross-sectional area of a gastrointestinal lumen, comprising:
- providing a delivery catheter including a needle translatably disposed therein, one or more anchors disposed within the needle and a suture coupled to each anchor;
- advancing the delivery catheter into the gastrointestinal lumen;
- advancing the needle through the tissue wall;
- ejecting an anchor from a distal tip of the needle through the tissue wall;
- advancing the needle through an opposing tissue wall;
- ejecting an anchor from a distal tip of the needle through the opposing tissue wall;
- and
- applying tension to the sutures to approximate the tissue walls.
A method for creating a gastrointestinal tissue fold, comprising:
- providing a delivery catheter including a translatable needle, an anchor disposed within the needle and a suture coupled to the anchor;
- extending the needle through the tissue wall at a first location so that the needle curves back against and punctures the tissue wall at a second location;
- ejecting the anchor from the curved needle;
- and
- tensioning the suture to create the tissue fold.
A method for creating a gastrointestinal tissue fold, comprising:
- providing a delivery catheter having a translatable needle, a jaw assembly, an anchor disposed within the needle and a suture coupled to the anchor;
- grabbing and pulling a tissue wall of the gastrointestinal lumen using the jaw assembly to create a tissue fold;
- extending the needle through the tissue fold;
- ejecting the anchor from the needle;
- and
- maintaining the tissue fold by applying tension to the suture.
Dependencies are inferred from the claim text.