DEVICES AND METHODS FOR STOMACH PARTITIONING
First Claim
1. A method of forming a tissue structure in body tissue, the method comprising the steps of:
- introducing a head having a first member and a second member into a body cavity;
using a first tissue engager to engage a first pinch of body tissue within the body cavity;
using a second tissue engager to engage a second pinch of body tissue within the body cavity;
withdrawing the first tissue engager and the second tissue engager to withdraw the first and second pinches between the first and second members;
compressing at least a portion of the first pinch and at least a portion of the second pinch between the first and second members; and
advancing a fastener from the first member through the first and second pinches to form a tissue structure.
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Accused Products
Abstract
A device and method for remodeling or partitioning a body cavity, hollow organ or tissue tract includes graspers operable to engage two or more sections of tissue within a body cavity and to draw the engaged tissue between a first and second members of a tissue remodeling tool. The two or more pinches of tissue are held in complete or partial alignment with one another as staples or other fasteners are driven through the pinches, thus forming a four-layer tissue plication. Over time, adhesions formed between the opposed serosal layers create strong bonds that can facilitate retention of the plication over extended durations, despite the forces imparted on them by stomach movement. A cut or cut-out may be formed in the plication during or separate from the stapling step to promote edge-to-edge healing effects that will enhance tissue knitting/adhesion.
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Citations
22 Claims
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1. A method of forming a tissue structure in body tissue, the method comprising the steps of:
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introducing a head having a first member and a second member into a body cavity; using a first tissue engager to engage a first pinch of body tissue within the body cavity; using a second tissue engager to engage a second pinch of body tissue within the body cavity; withdrawing the first tissue engager and the second tissue engager to withdraw the first and second pinches between the first and second members; compressing at least a portion of the first pinch and at least a portion of the second pinch between the first and second members; and advancing a fastener from the first member through the first and second pinches to form a tissue structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system for forming a tissue structure in body tissue, the system comprising:
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a head having a first member and a second member; a first tissue engager extendable between the first and second members to engage a first pinch of body tissue within the body cavity and retractable to withdraw the first pinch between the first and second members; a second tissue engager extendable between the first and second members to engage a second pinch of body tissue within the body cavity and retractable to withdraw the second pinch between the first and second members adjacent to the first pinch of body tissue; wherein the first and second members are moveable relatively towards one another into a tissue compression position in which the first and second members are positioned to compress at least a portion of the first pinch and at least a portion of the second pinch between the first and second members; and a fastener advanceable from the first member through the first and second pinches. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of closing a hole in body tissue, comprising the steps of;
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providing a grasper including a first jaw member, a second jaw member, and a third member between the first and second jaw members; advancing the grasper to a hole in body tissue; engaging a first edge of the hole between the first jaw member and the third member; engaging a second edge of the hole between the second jaw member and the third member; with the first and second edges of the hole engaged by the grasper, manipulating the grasper to draw the first and second edges and an adjacent pinch of tissue between first and second elements of a fastening tool; compressing the pinch of tissue between the first and second elements of the fastening tool; and advancing a fastener from the first element through the pinch of tissue.
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Specification