A catheter, comprising a catheter body, a handle coupled to the catheter body, comprising a plunger (262) moveable within the handle over a stroke length, a switching mechanism (220) to selectively change a direction of deflection between a first deflection direction and a second deflection direction of the catheter body, means (102, 284a) for deflecting the catheter body in the first deflection direction in response to the plunger (262) being moved over the stroke length when the switching mechanism (220) is in a first configuration； and means (102, 284b) for deflecting the catheter body in the second deflection direction in response to the plunger (262) being moved over the same stroke length when the switching mechanism (220) is in a second configuration.
