Apparatus and methods for forming and securing gastrointestinal tissue folds
First Claim
1. A method for performing a medical procedure within a hollow body organ of tortuous or unpredictably supported anatomy, the method comprising:
- advancing an overtube comprising a plurality of nested elements having mating contoured surfaces within the hollow body organ in a flexible state;
transitioning the overtube to a rigid state by imposing a load that clamps the contoured surfaces of adjacent nested elements together to thereby substantially fix the shape of the overtube in any desired configuration;
advancing a plication device through a lumen defined by the overtube after the overtube has been transitioned to the rigid state, the plication device comprising a pair of movable jaws adapted to engage tissue within the hollow body organ;
forming a tissue fold within the hollow body organ with the plication device; and
securing the tissue fold using a tissue anchor deployed from a needle of the plication device.
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Accused Products
Abstract
Apparatus and methods are provided for forming a gastrointestinal tissue fold by engaging tissue at a first tissue contact point and moving the first tissue contact point from a position initially distal to, or in line with, a second tissue contact point to a position proximal of the second contact point, thereby forming the tissue fold, and extending an anchor assembly through the tissue fold from a vicinity of the second tissue contact point. Adjustable anchor assemblies; as well as anchor delivery systems, shape-lockable guides and methods for endoluminally performing medical procedures, such as gastric reduction, treatment of gastroesophageal reflux disease, resection of lesions, and treatment of bleeding sites; are also provided.
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Citations
22 Claims
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1. A method for performing a medical procedure within a hollow body organ of tortuous or unpredictably supported anatomy, the method comprising:
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advancing an overtube comprising a plurality of nested elements having mating contoured surfaces within the hollow body organ in a flexible state; transitioning the overtube to a rigid state by imposing a load that clamps the contoured surfaces of adjacent nested elements together to thereby substantially fix the shape of the overtube in any desired configuration; advancing a plication device through a lumen defined by the overtube after the overtube has been transitioned to the rigid state, the plication device comprising a pair of movable jaws adapted to engage tissue within the hollow body organ; forming a tissue fold within the hollow body organ with the plication device; and securing the tissue fold using a tissue anchor deployed from a needle of the plication device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification