Methods and apparatus for performing transluminal and other procedures

摘要: The invention is directed to an apparatus for use in a transluminal procedure. apparatus, comprising, example, housing having guide lumen and seal proximal distal end of the that extends across completely seals lumen; fixation element adapted secure tissue; channel extending through side wall outlet communication with seal. Methods are also provided. For method includes, performing procedure by: securing datum position indicator target forming opening wall; advancing instrument opening; tracking advancement using indicator.