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US 2013/0085515 A1Published application
Atherectomy devices and methods
AssigneeAtheromed, Inc.
InventorsJohn T. TO, Paul ESCUDERO, Christopher James DANEK
Life of this patent
Estimating the term…
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.
Claims8
1-70. (canceled)
A device for removing material from a body lumen, the device comprising:
- a catheter comprising a slotted tube and having a proximal end, a distal end, a distal portion having a first slot pattern, a proximal portion having a second slot pattern, and a catheter lumen extending therethrough;
- a cutter assembly located at the distal end of the catheter;
- a torque shaft extending through the catheter lumen and attached to the cutter assembly for rotating a cutter of the cutter assembly;
- and
- a sweep sheath slidable relative to the catheter, the sweep sheath comprising a curved distal portion,
- wherein the curved distal portion is stiffer than the distal portion of the catheter and is less stiff than the proximal portion of the catheter, and wherein the sweep sheath is advanceable from a first position in which the proximal portion of the catheter straightens the curved distal portion of the sweep sheath to a second position in which the curved distal portion of the sweep sheath deflects the distal portion of the catheter.
3 more elements
Dependencies are inferred from the claim text.