Rotational alignment wire system for an endovascular delivery system

摘要

An endovascular delivery system includes an endovascular prosthetic device and a signal active guide wire engaging the endovascular prosthetic device. A rotary encoder is coupled with the guide wire and the endovascular prosthetic device to provide an encoder signal on the guide wire. The encoder signal is indicative of axial angular position of the endovascular prosthetic device during implantation of the endovascular prosthetic device in a body of a patient.

主权项

1. An endovascular delivery system comprising:
an endovascular prosthetic device; a signal active guide wire engaging the endovascular prosthetic device; and a rotary encoder coupled with the guide wire and the endovascular prosthetic device to provide an encoder signal on the signal active guide wire, the encoder signal indicative of an axial angular position of the endovascular prosthetic device during implantation of the endovascular prosthetic device in a body of a patient, the rotary encoder including a device positioned on the endovascular prosthetic device and being rotatable with the endovascular prosthetic device about the signal active guide wire; a signal collecting array of elements disposed circumferentially around the signal active guide wire, the signal collecting array of elements being responsive to a position of respective selected elements of the signal collecting array of elements relative to the device to generate the encoder signal in the signal active guide wire as a time varying signal as the device is rotated relative to the signal collecting array of elements; and wherein the device of the rotary encoder further comprises a magnet fixed on the endovascular prosthetic device to cause the signal collecting array of elements disposed circumferentially around the signal active guide wire to generate the encoder signal on the guide wire in response to rotation of the endovascular prosthetic device, including the magnet, relative to the signal collecting array of elements disposed circumferentially around the signal active guide wire.