Articulating apparatus for endoscopic procedures with timing system

An endoscopic surgical device configured to fire a surgical anchor into target tissue, the endoscopic surgical device comprising;

• a handle assembly including:
• a handle housing;
• a trigger defining a gear rack, the trigger operatively connected to the handle housing and movable between a fully un-actuated position and a fully actuated position;
• a pinion gear defining a plurality of teeth operatively engageable with the gear rack of the trigger, the pinion gear including an arm extending radially therefrom that defines a camming feature;
• a first bevel gear defining a first surface including a plurality of teeth and a camming feature selectively engageable with the camming feature of the pinion gear;
• a drive mechanism actuatable by the trigger;
• a timing system associating the trigger with the drive mechanism;
• and
• a second bevel gear defining a plurality of teeth operatively engaged with the plurality of teeth of the first bevel gear, the second bevel gear secured to a proximal end portion of the rotatable inner actuation shaft;
• and
• an endoscopic assembly including:
• a proximal end portion extending from the handle assembly;
• a distal end portion configured to support an end effector;
• a rotatable inner actuation shaft extending from the handle assembly and into the distal end portion of the endoscopic assembly, the rotatable inner actuation shaft being connected to the drive mechanism of the handle assembly such that an actuation of the trigger results in a rotation of the rotatable inner actuation shaft to fire a surgical anchor from the endoscopic surgical device, the rotatable inner actuation shaft including a proximal portion operatively connected to the second bevel gear, and a distal portion non-rotatably supporting a coupling member;
• a support tube assembly having a proximal support tube portion extending from the handle assembly;
• and
• a distal support tube portion configured to removably receive the end effector, the inner actuation shaft being rotatably supported in the support tube,
• wherein actuation of the trigger causes movement of the gear rack in a first direction, which causes rotation of the pinion gear in a first direction, and wherein rotation of the pinion gear in the first direction causes the camming feature of the pinion gear to selectively engage the camming feature of the first bevel gear to cause a corresponding rotation of the first bevel gear in a first direction, wherein rotation of the first bevel gear in the first direction causes a corresponding rotation of the second bevel gear in a first direction, the rotation of the second bevel gear in the first direction resulting in the rotation of the inner actuation shaft to fire a surgical anchor from the endoscopic surgical device.

An endoscopic surgical device configured to fire a surgical anchor into target tissue, the endoscopic surgical device comprising;

• a handle assembly including:
• a handle housing;
• a trigger operatively connected to the handle housing and movable between a fully un-actuated position and a fully actuated position;
• a drive mechanism actuatable by the trigger;
• and
• a timing system associating the trigger with the drive mechanism, wherein the timing system includes:
• a raceway formed in a surface of the trigger, the raceway defining steps along a length thereof;
• and
• a deflectable arm having a first end disposed within the raceway and operatively associated with the steps thereof, and a second end connected to the handle housing;
• wherein the timing system maintains a timing of an actuation stroke of the trigger with an actuation of the drive mechanism to fire a single surgical anchor upon a single stroke of the trigger from the fully un-actuated position, to the fully actuated position, to the fully un-actuated position.