Aortic valve cutter

摘要

An aortic valve cutter of the present disclosure has a flexible housing with a central lumen for receiving a guide wire. A high-speed rotating wire is disposed within the housing near an edge of the housing. A trough cut into a side of the housing exposes a portion of the rotating wire such that the rotating wire can be used as a cutter. Two pusher wires are disposed on an opposite side of the housing from the rotating wire. Troughs cut into the side of the housing form openings from which the pusher wires can extend. The pusher wires are staggered with respect to one another in the longitudinal direction. When the pusher wires are advanced, they extend outwardly from the troughs and can be used to stabilize the cutter at the aortic valve and push the cutting wire against the valve on the opposite side.

主权项

1. A device for cutting an aortic valve, the device comprising:
a housing comprising a single central lumen adapted to receive a guide wire, the housing comprising an exterior wall; a high speed rotating cutting wire disposed within the housing near an outside wall of the housing; an elongated cutout in the outside wall adjacent to the cutting wire, the elongated cutout forming a cutting trough through which the cutting wire is accessible; a pair of pusher wires disposed within the housing near the outside wall of the housing, on an opposite side of the housing from the cutting trough, the pusher wires each extendable through the outside wall via a pusher wire trough associated with the pusher wire, the pusher wire troughs comprising elongated cutouts in the outside wall, the pusher wire troughs spaced apart from one another longitudinally such that when the pusher wires are extended from the pusher wire troughs, a valley is formed between the pusher wires.