Valve cutter

A device for cutting cardiac valve, the device comprising:

• a housing comprising a single lumen adapted to receive a guide wire, the housing comprising an exterior wall;
• a high speed cutting blade disposed within the housing near the exterior wall of the housing;
• a motor configured to effectuate motion of the high speed cutting blade;
• an elongated cutout in the exterior wall adjacent to the cutting blade, the
• elongated cutout forming a cutting trough through which the cutting blade is accessible;
• a first pusher wire and a second pusher wire disposed within the housing near the exterior wall of the housing, on an opposite side of the housing from the cutting trough, the first pusher wire and the second pusher wire each extendable through the exterior wall via a pusher wire trough associated with each of the first pusher wire and the second pusher wire, the pusher wire troughs comprising elongated cutouts in the exterior wall, the pusher wire troughs spaced apart from one another longitudinally such that when the first pusher wire and the second pusher wire are extended from the pusher wire troughs, a valley is formed between the first pusher wire and the second pusher wire.