Stapling and cutting in resectioning for full thickness resection devices
AssigneeBoston Scientific Scimed, Inc.
InventorsGary McAlister, Robert L. Sakal
Life of this patent
Estimating the term…
Abstract
A stapling unit for use with an endoscopic stapling system adapted to be advanced along an endoscope to a predetermined location within a body lumen to staple the portion of tissue, as part of an occlusal or full thickness resectioning procedure. The stapling unit comprises a first casing having a distal end, a proximal end and a stapling device mounted thereto adjacent to a first window extending through a periphery of the first casing. The invention includes methods for the stapling, severing and removal of tissue by using the device.
Claims16
A stapling unit for an endolumenal stapling system comprising:
- a housing including a substantially tubular wall and a distal end cap, the housing being slidably coupleable to an endoscope for advancement therealong, the tubular wall including a window extending therethrough with an anvil formed on a first edge of the window, the housing further including a stapling apparatus mounted within the housing for movement between a stapling position in which a staple firing surface of the stapling apparatus is adjacent to the anvil and a tissue receiving position in which the staple firing surface is separated from the anvil to open the window and expose a tissue receiving cavity within an interior of the housing, the staple firing apparatus driving a staple across the staple firing surface through tissue in the tissue receiving cavity;
- and
- a tissue grasping mechanism extendible through the window for drawing tissue through the window into the tissue receiving cavity.
A method of endolumenally resecting tissue within a body lumen, comprising the steps of:
- endoscopically locating a portion of tissue to be resected within a body lumen;
- sliding a housing along the endoscope to a desired position adjacent to the portion of tissue to be resected, the housing including a substantially tubular wall and a distal end cap, the tubular wall including a window extending therethrough with an anvil formed on an edge of the window, the housing further including a stapling apparatus movably mounted therewithin, defining a staple firing surface and opening and closing the window as it moves within the housing between a tissue receiving position and a stapling position;
- moving the stapling apparatus to the tissue receiving position to open the window;
- drawing the portion of tissue to be resected into the housing through the window folded over so that two full thicknesses of tissue of a wall of the body lumen are received within the window;
- moving the stapling apparatus to the stapling position clamping the portion of tissue to be resected between the stapling apparatus and the anvil;
- driving staples from across the staple firing surface through the two thicknesses of wall tissue to couple the two thicknesses of wall tissue to one another;
- and
- cutting tissue radially within the stapled tissue from the stapled tissue.
A system for endolumenally resecting tissue comprising:
- a flexible endoscope;
- a housing including a substantially tubular wall including a window extending therethrough with an anvil formed on a first edge of the window and a distal end cap, the housing being slidably coupled to the endoscope and including a stapling apparatus mounted within the housing for movement between a stapling position in which a staple firing surface of the stapling apparatus is adjacent to the anvil and a tissue receiving position in which the staple firing surface is separated from the anvil to open the window and expose a tissue receiving cavity within the housing, the staple firing apparatus driving a staple across the staple firing surface through tissue in the tissue receiving cavity;
- and
- a tissue grasping mechanism extendible through the window for drawing tissue through the window into the tissue receiving cavity.
Dependencies are inferred from the claim text.