Patent ID: 7118584

Claim:
A multi-lumen, multi-functional endoscopic catheter comprising: a first lumen disposed in said catheter; at least one positionable cutting device disposed in said first lumen to be positioned along said first lumen and also out of a distal end of said first lumen a reciprocating cable disposed in said first lumen to position said cutting device; at least one transmission element disposed in said first lumen at a distal portion of said catheter, said transmission element being disposed about said cable; said cable having a helical exterior shaped surface portion that is in moveable contact with a helical interior shaped surface portion of said transmission element so that when a proximal portion of said cable is reciprocally moved a combination of rotational and reciprocal movements are made between said cable and said transmission element as said cable helical exterior shaped surface portion is moved with respect to said transmission element helical interior shaped surface portion; and, said transmission element having an exterior shaped surface disposed in contact with an interior shaped surface of said first lumen for transmitting rotary motion to the distal end of said catheter from said transmission element.