Patent ID: 7887558
Filing Date: 2011-02-15
Classification: A61B

Abstract:
1. A vessel harvesting system for use in conjunction with an endoscope having an elongated shaft, comprising: a handle having a distal end and a proximal end; a cannula tube connected to and extending distally from the handle, the cannula tube having a first lumen sized to receive the elongated shaft of the endoscope and at least a second lumen, both terminating at a distal end of the cannula tube; a carriage supporting a movable control element thereon and being slidably mounted on the handle for translational movement thereon, wherein the carriage has a portion for touch by a user; and an elongated surgical instrument having an end effector sized to extend through the second lumen of the cannula tube, the surgical instrument being mounted for movement with the carriage with respect to the handle to cause proportional movement of the end effector relative to the cannula tube; wherein the carriage is mounted to be displaced in a proximal-distal direction along the handle and is coupled to the surgical instrument to cause equal proximal-distal movement of the end effector near the distal end of the cannula tube; and wherein the carriage is configured to be displaced in the proximal-distal direction along the handle in response to a movement of the portion that is for touch by the user in the proximal-distal direction.