Rotational angioplasty device with abrasive crown
AssigneeCardiovascular Systems, Inc.
InventorsLeonid Shturman, Dmitrii Urjevich Proudnikov, Aleksi Filippovich Filippov, Arkadiy Smagin
Life of this patent
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Abstract
A rotational angioplasty device comprising a flexible, elongated drive shaft rotatable about an axis of rotation of the drive shaft, the drive shaft comprising one or more helically wound wires and having an eccentric enlarged diameter section and an abrasive crown mounted on the enlarged diameter section of the drive shaft.
Claims102
A rotational angioplasty device comprising:
- a flexible, elongated drive shaft rotatable about an axis of rotation of the drive shaft, the drive shaft comprising one or more helically wound wires and having an eccentric enlarged diameter section;
- and an abrasive crown mounted on the enlarged diameter section of the drive shaft.
A rotational angioplasty device comprising:
- a flexible, elongated drive shaft rotatable about an axis of rotation of the drive shaft, the drive shaft comprising one or more helically wound wires and having an eccentric enlarged diameter section;
- and an abrasive crown mounted around a maximum diameter of the enlarged diameter section of the drive shaft.
A rotational angioplasty device driveshaft comprising:
- one or more helically wound wires forming a flexible drive shaft having an eccentric enlarged diameter section located between elongated proximal and distal sections of the drive shaft, the proximal and distal sections being symmetric relative to an axis of rotation of the drive shaft;
- and
- a sleeve connected to the flexible enlarged diameter portion, the sleeve having a tissue removing surface which defines a tissue removing section of the drive shaft.
A rotational angioplasty device comprising a flexible, elongated drive shaft rotatable about an axis of rotation of the drive shaft, the drive shaft comprising one or more helically wound wires and having an eccentric enlarged diameter section located between elongated proximal and distal sections of the drive shaft, and an abrasive sleeve mounted around a maximum diameter portion of the enlarged diameter section of the drive shaft.
A. rotational angioplasty device comprising a flexible, elongated drive shaft rotatable about an axis of rotation of the drive shaft, the drive shaft comprising one or more helically wound wires and having an eccentric enlarged diameter section, and an abrasive sleeve mounted on a portion of the enlarged diameter section of the drive shaft, wherein the enlarged diameter section has first portion of increasing diameter and a second portion of decreasing diameter, the abrasive sleeve being mounted between the first portion and second portion of the enlarged diameter section of the drive shaft.
A method for making a rotational angioplasty device, the method comprising the steps of:
- providing a flexible, elongated drive shaft comprising one or more helically wound wires and having an eccentric enlarged diameter section located between elongated proximal and distal sections of the drive shaft;
- providing an abrasive crown, the abrasive crown having a tissue removal surface;
- placing either the elongated distal or proximal section of the drive shaft through the abrasive crown;
- resiliently stretching a portion of the drive shaft which includes the enlarged diameter section to reduce a maximum diameter of the enlarged diameter section of the drive shaft;
- moving the abrasive crown over the drive shaft so that the abrasive crown is located around a maximum diameter portion of the enlarged diameter section of the drive shaft;
- and
- allowing the stretched portion of the drive shaft to return to an unstretched state wherein at least some wire turns of the enlarged diameter section rest against an inner surface of the abrasive crown.
A rotational angioplasty device drive shaft comprising one or more helically wound wires forming a flexible, elongated portion of the drive shaft, the flexible elongated portion of the drive shaft having an axis of rotation about which the drive shaft is rotated and an eccentric enlarged diameter section, wherein a majority of adjacent wire turns of the enlarged diameter section and along length of the drive shaft distal to the enlarged diameter section have increased spaces inbetween the adjacent wire turns compared to spaces between adjacent wire turns in another portion of the drive shaft.
A rotational angioplasty device driveshaft comprising:
- one or more helically wound wires forming a flexible, elongated portion of the drive shaft, the flexible elongated portion of the drive shaft having an axis of rotation about which the drive shaft is rotated and an eccentric enlarged diameter section;
- and
- a sleeve connected to the flexible elongated portion, the sleeve having a tissue removal surface, and being located around a portion of the enlarged diameter section which has a maximum diameter of the enlarged diameter section to define a tissue removal section of the drive shaft.
A rotational angioplasty device comprising a flexible, elongated drive shaft rotatable about a guide wire, the drive shaft having a longitudinal axis and comprising one or more helically wound wires and having an eccentric enlarged diameter section, and a abrasive sleeve mounted on a portion of the enlarged diameter section of the drive shaft having a maximum diameter of the drive shaft.
A method for making a rotational angioplasty device, the method comprising the steps of:
- providing a flexible, elongated drive shaft comprising one or more helically wound wires and having an eccentric enlarged diameter section located between elongated proximal and distal sections of the drive shaft;
- providing an abrasive crown, the abrasive crown having a tissue removal surface;
- and
- placing the abrasive crown on the eccentric enlarged diameter section of the drive shaft.
A rotational angioplasty device comprising:
- a flexible, elongated drive shaft rotatable about an axis of rotation of the drive shaft, the drive shaft comprising one or more helically wound wires and having an enlarged diameter section;
- and an abrasive crown mounted on the enlarged diameter section of the drive shaft.
Dependencies are inferred from the claim text.