Atherectomy device having an ultrasonic catheter assembly
AssigneeC. R. Bard, Inc.
InventorScott L. Randall
Life of this patent
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Abstract
An atherectomy device includes a handpiece having an ultrasonic transducer, and an ultrasonic catheter assembly detachably attached to the handpiece. The ultrasonic catheter assembly includes a sheath having a proximal end, a distal end, and an elongate lumen. A core wire is located in the elongate lumen. The core wire has a distal tip and a distal portion proximal to the distal tip. The distal portion has an abrasive exterior surface portion. The abrasive exterior surface portion defines a plurality of cutting protrusions, wherein each of the plurality of cutting protrusions extends away from the core wire in a distal direction at an acute angle with respect to a longitudinal external surface of the core wire.
Claims20
An atherectomy device, comprising:
- a handpiece having an ultrasonic transducer;
- and
- an ultrasonic catheter assembly detachably attached to the handpiece, the ultrasonic catheter assembly including:
- a sheath having a proximal end, a distal end, and an elongate lumen;
- and
- a core wire located in the elongate lumen, the core wire having a distal tip and a distal portion proximal to the distal tip, the distal portion having an abrasive exterior surface portion, the abrasive exterior surface portion defining a plurality of cutting protrusions, wherein each of the plurality of cutting protrusions extends away from the core wire in a distal direction at an acute angle with respect to a longitudinal external surface of the core wire.
An ultrasonic catheter assembly, comprising:
- a housing;
- a sheath connected to the housing, the sheath having a proximal end, a distal end, and an elongate lumen;
- and
- a core wire located in the elongate lumen, the core wire having a distal tip and a distal portion proximal to the distal tip, the distal portion having an abrasive exterior surface portion, the abrasive exterior surface portion defining a plurality of cutting protrusions, wherein each of the plurality of cutting protrusions extends away from the core wire in a distal direction at an acute angle with respect to a longitudinal external surface of the core wire.
Dependencies are inferred from the claim text.