| 主权项 |
1. A vascular device for removing material from body lumens, the device comprising:
a steering member; a catheter body having a stiffer proximal portion and a more flexible distal portion: a steering member located along the catheter body, the steering member having a curved section located towards the distal end. where the curved section is more flexible than the stiffer proximal portion of the catheter body such that when located along the flexible portion the flexible distal portion of the catheter body takes tile shape of the curved section: a cutter assembly located at the distal end of the catheter body, the cutter assembly comprising a housing having at least one opening and a cutter having at least one cutting surface configured to rotate relative to the housing, where movement between tile housing opening and the cutting surface removes material located therebetween; a rotating shaft extending through tile catheter body and coupled to the cutter, the torque shaft having a proximal end adapted to couple to a first rotating mechanism; and where on advancement of the curved section of the steering member out of the distal portion of the sheath, the curved section reshapes the catheter body. |
