Patent ID: 9737688
Date: 2017-08-22
CPC Classifications: A61M

Claim:
1. A modular handle assembly for supporting and controlling a steerable catheter having at least one deflection wire, said modular handle assembly comprising; a handle portion extending along an axis for being secured about a portion of the steerable catheter, at least one barrel rotatably connected to said handle portion for rotation about said axis, said at least one barrel having an inside surface presenting a plurality of internal teeth, at least one actuation screw shaft disposed within said handle portion and extending through said at least one barrel for connection with the at least one deflection wire of the steerable catheter, said at least one actuation screw shaft having an outer surface presenting a plurality of external threads, at least one pinion gear threadedly interconnecting said at least one actuation screw shaft and said at least one barrel, said at least one pinion gear having an external surface presenting a plurality of external teeth mating with said internal teeth of said barrel for providing rotational movement of said at least one pinion gear in response to said rotation of said at least one barrel about said axis, and said at least one pinion gear having an internal surface presenting a plurality of internal threads being threadedly connected with said external threads of said at least one actuation screw shaft for translating rotational movement of said at least one barrel about said axis into axial movement of the at least one actuation screw shaft to provide for movement of said at least one deflection wire to curl the steerable catheter.