Apparatus and methods are provided for performing mucosectomy, such as to map out gastrointestinal surgery, including endoluminal gastric reduction. In one variation, the apparatus comprises a separating element and an integrated resection element. In one variation, the apparatus is configured to simultaneously separate mucosal tissue from underlying muscularis tissue and to resect the separated mucosal tissue. Methods of using the apparatus are provided.
CROSS-REFERENCES TO RELATED APPLICATIONS
This application is a Continuation-In-Part application of co-pending U.S. patent application Ser. No. 10/954,658 , filed Sep. 29, 2004, which is a Continuation-In-Part application of co-pending U.S. patent application Ser. No. 10/797,910 , filed Mar. 9, 2004, both of which are incorporated herein by reference in their entireties.