US Patent 7465288 Actuation handle for a catheter

A catheter actuation handle is disclosed for deflecting a distal end of a tubular catheter body including a first actuation wire extending from a proximal end of the body. The handle includes a grip portion for coupling to the proximal end of the body. A first actuator is moveably coupled to the grip portion. A first stationary gear rack is fixed relative to the grip portion. A first moveable gear rack is moveable relative to the grip portion and for coupling to the first actuation wire. A first pinion gear is coupled to the first actuator and located between, and engaged with, the first stationary gear rack and the first moveable gear rack.