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US 2011/0087222 A1Published application
Tissue Resection Device
AssigneeApollo Endosurgery US, Inc.
InventorsDavid Miller, Todd Dalton, Mitch Gilkey
Life of this patent
Estimating the term…
Abstract
Instruments and methods are provided for performing submucosal medical procedures in a desired area of the digestive tract using endoscopy. The instruments include a mucosal resection device, a tissue grasper and a snare. Systems include a combination of one or more of such instruments. Embodiments of various methods for performing the procedures are also provided.
Claims17
An apparatus for resecting a target area of mucosal tissue comprising:
- an elongate member having proximal and distal sections wherein said distal section includes first and second guides each having a slot, the slots defining a path;
- and
- a resection member having proximal and distal ends wherein the distal end is movably engaged to the distal section and extends between said first and second guides of said elongate member such that said resection member may traverse a path defined by said distal section to thereby resect mucosal tissue along said path positioned between said first and second guides.
An apparatus for resecting a target area of mucosal tissue, comprising:
- an elongate member having proximal and distal sections;
- first and second electrically-insulated tubular guides coupled to said distal section, each of said guides defining a longitudinal slot, said longitudinal slots facing each other, each of said first and second guides having an outer diameter larger than a width of said slots;
- an electro-conductive resection member having proximal and distal ends wherein the distal end forms a loop that extends through said first guide, through said slots, and back through said second guide;
- and
- a proximal handle coupled to said elongate member for longitudinally displacement said resection member within said slots such that said resection member may traverse mucosal tissue along a path defined between said first and second guides and resect such mucosal tissue, said handle including an electrical connector adapted for coupling said resection member to an electrosurgical generator.
2 more elements
A method of resecting a mucosal tissue from submucosal tissue, comprising:
- a) forming a large mucosal layer dissected area in a digestive tract of a mammal to define a target area to be resected;
- b) providing a mucosal layer resection device having first and second electrically-insulated tubular guides, each of said guides defining a longitudinal slot, said longitudinal slots facing each other, and a resection member having proximal and distal ends wherein said distal end forms a loop that extends through said first guide, through said slots, and back through said second guide;
- c) inserting a portion of said first guide through an opening in the mucosal layer into a submucosal space beneath the target area to be resected and a second guide above the target area to be resected;
- and
- d) distally displacing said resection member through said slots relative to said first and second guides to resect the target area of mucosal tissue from surrounding mucosal tissue.
2 more elements
Dependencies are inferred from the claim text.