ATHERECTOMY DEVICES AND METHODS
1 Assignment
0 Petitions
Accused Products
Abstract
The devices and methods generally relate to treatment of occluded body lumens. In particular, the present devices and method relate to removal of the occluding material from the blood vessels as well as other body lumens.
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Citations
82 Claims
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1-49. -49. (canceled)
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50. A vascular device for removing material from body lumens, the device comprising:
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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 the 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 the housing opening and the cutting surface removes material located therebetween; a rotating shaft extending through the 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. - View Dependent Claims (51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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63-78. -78. (canceled)
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79. A vascular device for removing material from body lumens, the device comprising:
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a catheter body having a proximal portion and a distal portion; a steering tube having varying stiffness along its circumference at the distal portion; 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 the housing opening and the cutting surface removes material located there between; and the distal portion of the steering tube is attached to the cutter assembly. - View Dependent Claims (80, 81)
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82-106. -106. (canceled)
Specification