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GASTROINTESTINAL VIDEOSCOPE XGIF-Q140M, XGIE-2T140M This instrument has been designed to be used with the OLYMPUS Video System Center, Light Source, Documentation Equipment, Video Monitor, Electrosurgical unit, Endo-Therapy Accessories such as a Biopsy Forceps and other ancillary equipment for endoscopy and endoscopic surgery within the upper digestive tract (including the esophagus, stomach and duodenum). COLONOVIDEOSCOPE XCF-Q140ML/L XPCF-160AML/I This instrument has been designed to be used with the OLYMPUS Video System Center, Light Source, Documentation Eguipment, Video Monitor, Electrosurgical unit, Endo-Therapy Accessories such as a Biopsy Forceps and other ancillary equipment for endoscopy and endoscopic surgery within the lower digestive tract (including the anus, rectum, and sigmoid colon, colon, and ileocecal valve).

The subject devices. XGIF-Q140M. XGIF-2T140M. XCF-Q140ML/I. XPCF-160AML/I are basically identical to the predicate devices, GIF-Q140, GIF-2T140, CF-Q140L/I, PCF-140L/I except that the mechanical structure of variable stiffness* and Multi-bending function has been added. *This feature has been added to XPCF-160AML/I only. While XPCF-160AML/I has the mechanical structure of variable stiffness (Refer to Attachment 2. "Flexibility Adiustment Function") this feature is identical to those of another predicate device, the EVIS EXERA Colonovideoendoscopes (#K001241). The addition of the variable stiffness function does not require any new insertion method or technique. The Multi-bending function has two independent bending sections in the insertion portion of the scope. This new function provides an easier approach in reaching the lesion and also a better view of the lesion from the front. Some lesions in the upper digestive tract were difficult to perform a perfect biopsy and endoscopy with the conventional forward-viewing gastroscope. (Refer to Appendix-3, "Clinical Literature"). The subject devices improve the approach to the lesion in the lower digestive tract compared with the predicate devices. We have evaluated the approach performance of the XPCF-160AMI compared to the predicate device using a colon model. (Refer to Attachment 1, "Comparison between approach performance of Predicate and Subject Device using a colon model").

This instrument has been designed to be used with the OLYMPUS EVIS Video System Center, EVIS Universal Light Source, Documentation Equipment, Video Monitor, Endo-Therapy Accessories (such as a Forceps) and other ancillary equipment for endoscopy and endoscopic surgery within the small intestine.

The subject device, the XSIF-1TQ140 is basically identical to the preamendment device, the SIF-B except that the mechanical structure of variable stiffness has been added and the imaging system has been changed from fiber to CCD.