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.
The present application is a continuation of application Ser. No. 10/083,097, filed Feb. 26, 2002 now U.S. Pat. No. 6,716,222, which is a continuation of application Ser. No. 09/727,051, filed Nov. 30, 2000 now U.S. Pat. No. 6,398,795, entitled "Stapling and Cutting in Resectioning for Full Thickness Resection Devices."
