Medical device delivery system

A method for automatic remote deployment of a medical device comprising:

• providing a delivery device comprising:
• a handle for remotely deploying a medical device, the handle including a trigger actuator operatively engaged to a drive mechanism for actuating a rotatable lead screw,
• a hollow, elongated barrel having a proximal end engaged to the handle, the barrel defining at least one slot for engaging a puller arrangement, the puller arrangement comprising:
• a chariot assembly engaged to the lead screw for moving the puller arrangement in a linear direction along the barrel, the chariot assembly including an automatic chariot engaged to the lead screw for providing linear movement of the chariot assembly along the lead screw and a manual chariot engaged to the automatic chariot and disengaged from the lead screw for manual actuation of the puller arrangement;
• a hollow, elongated outer catheter having a proximal end engaged to the puller arrangement and a distal end thereof engaged to a catheter tip for collectively encapsulating the medical device prior to deployment, and
• a hollow, elongated inner catheter disposed inside the outer catheter, the inner catheter defining a free end engaged to the catheter tip for retaining the catheter tip;
• and.
• inserting the catheter tip over a guidewire and through a body passageway of a body for delivery of the medical device to a desired location in the body;
• and
• actuating the trigger actuator of the handle in a single-handed action for operating the drive mechanism to rotate the lead screw such that the puller arrangement moves in a linear direction along the slot of the barrel, thereby causing the outer catheter to be progressively retracted and disengaged from the catheter tip to deploy the medical device.

A method for manual remote deployment of a medical device comprising:

• providing a delivery device comprising:
• a handle for remotely deploying a medical device, the handle including a trigger actuator operatively engaged to a drive mechanism for actuating a rotatable lead screw,
• a hollow, elongated barrel having a proximal end engaged to the handle, the barrel defining at least one slot for engaging a puller arrangement, the puller arrangement comprising:
• a chariot assembly engaged to the lead screw for moving the puller arrangement in a linear direction along the barrel, the chariot assembly including an automatic chariot engaged to the lead screw for providing linear movement of the chariot assembly along the lead screw and a manual chariot engaged to the automatic chariot and disengaged from the lead screw for manual actuation of the puller arrangement;
• a hollow, elongated outer catheter having a proximal end engaged to the puller arrangement and a distal end thereof engaged to a catheter tip for collectively encapsulating the medical device prior to deployment, and
• a hollow, elongated inner catheter disposed inside the outer catheter, the inner catheter defining a free end engaged to the catheter tip for retaining the catheter tip;
• and.
• inserting the catheter tip over a guidewire and through a body passageway of a body for delivery of the medical device to a desired location in the body;
• and
• disengaging the manual chariot from the automatic chariot of the chariot assembly such that only the manual chariot is engaged to the puller arrangement;
• and
• moving the puller arrangement in a linear direction along the slot of the barrel, thereby causing the outer catheter to be progressively retracted and disengaged from the catheter tip to deploy the medical device.