Stapling and cutting in resectioning for full thickness resection devices
First Claim
Patent Images
1. 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.
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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.
1544 Citations
16 Claims
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1. A stapling unit for an endolumenal stapling system comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of endolumenally resecting tissue within a body lumen, comprising the steps of:
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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. - View Dependent Claims (13, 14, 15)
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16. A system for endolumenally resecting tissue comprising:
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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.
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Specification