Patent ID: 8663241
Filing Date: 2014-03-04
Classification: A61B

Abstract:
1. An apparatus for resectioning tissue within a body lumen, comprising: a stapling mechanism which, when in an operative position, is entirely located within a body lumen, the stapling mechanism including a stapling head formed at a distal end of a stapling arm and an anvil member including an anvil surface formed on a surface of a distal end of an anvil arm, wherein each of the stapling and anvil arms includes a camming surface engaging a cam so that, as the cam is moved proximally and distally relative to the camming surfaces, the stapling and anvil arms are rotated so that the distal ends thereof move toward and away from one another, the stapling head including a staple cam to drive staples; a flexible drive member extending proximally from one of the cam and the stapling and anvil arms; and an actuating member coupled to a proximal end of the flexible drive member for controlling the drive member to move the distal ends of the anvil and stapling arms toward and away from one another, wherein, when in the operative position, the flexible drive member extends through a body lumen and out of the body via a naturally occurring body orifice to couple to the actuating member, wherein a first direction along the stapling mechanism extending parallel to a longitudinal axis of the stapling arm defines a tissue pulling direction, and wherein a staple line along the stapling head extending parallel to a direction in which the staple cam moves is perpendicular with respect to the tissue pulling direction.