Patent ID: 8070694
Filing Date: 2011-12-06
Classification: A61B,A61F,A61M

Abstract:
1. An actuation tool for manipulating a medical device comprising an overtube and a corewire within a lumen of the overtube, wherein a proximal end of the corewire extends from a proximal end of the overtube; the actuation tool comprising: a support structure; an overtube connection supported by the support structure, the overtube connection comprising a fastening element configured for gripping the overtube at or near its proximal end with the corewire extending outward from the overtube; a corewire connection supported by the support structure, the corewire connection comprising a corewire connecting element configured to grip the corewire at or near its proximal end; an adjustable channel comprising slidably engaging channel portions forming a lumen, the adjustable channel being supported within the support structure, the adjustable channel extending between the overtube connection and the corewire connection, wherein the lumen has a diameter larger than the diameter of the corewire that effectively receives the entire length of the corewire between the corewire connection and the overtube connection with nominal clearance to prevent bending of the corewire; and a control element comprising a rotatable element and a lateral transmission element operably connected to the adjustable channel wherein the control element converts rotational motion of the rotatable element to relative translational motion of the engaging channel portions to change the length of the adjustable channel and adjust the relative distance of the overtube connection and the corewire connection to move the proximal ends of the overtube and the corewire toward or away from each other when the overtube and corewire are respectively gripped by the overtube connection and the corewire connection.