Handle control system for a stent delivery system

A stent delivery system comprising:

• a first shaft;
• a second shaft, the second shaft movable relative to the first shaft and coaxially extending with the first shaft;
• a stent operably connected to the first shaft and the second shaft;
• and
• a control system comprising:
• a rotatable gear;
• a first movable member operably connected to the gear and the first shaft;
• and
• a second movable member operably connected to the gear and the second shaft;
• wherein rotation of the rotatable gear moves the first movable member and the second movable member in opposite directions and an equal distance from a central axis of the control system to change a position of the first shaft relative to the second shaft and equal and opposite force is removed from the stent to change a configuration of the stent operably connected to the first shaft and the second shaft from a constrained configuration to an expanded configuration.

A method of controlling the movement of a medical device delivery system, the method comprising:

• providing a control system, the control system comprising:
• a rotatable gear, the rotatable gear comprising a plurality of protrusions;
• a first movable member operably connected to the gear and a first shaft;
• and
• a second movable member operably connected to the gear and a second shaft;
• activating the rotatable gear to move the first movable member relative to the second movable member in opposite directions and an equal distance from a central axis of the control system;
• changing the position of the first shaft relative to the second shaft;
• and
• changing a configuration of a medical device connected to the first shaft and the second shaft when the first shaft is moved relative to the second shaft and equal and opposite force is applied to or removed from the medical device.