Atherectomy devices and methods
AssigneeCardio Flow, Inc.
InventorsCassandra Ann Piippo Svendsen, Ryan D. Welty, Michael Kallok
Life of this patent
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Abstract
Rotational atherectomy devices and systems can remove or reduce stenotic lesions in blood vessels by rotating one or more abrasive elements within the vessel. The abrasive elements are attached to a distal portion of an elongate flexible drive shaft that extends from a handle assembly that includes a driver for rotating the drive shaft. In particular implementations, the handle assembly encapsulates an electric motor assembly, a pump assembly, and a controller assembly.
Claims20
A rotational atherectomy device for removing stenotic lesion material from a blood vessel of a patient, the device comprising:
- an elongate flexible drive shaft;
- an abrasive element coupled to a distal portion of the elongate flexible drive shaft;
- and
- a handle comprising an outer housing, the handle further comprising:
- an electric motor coupled to a proximal portion of the elongate flexible drive shaft, the electric motor configured to cause rotation of the elongate flexible drive shaft in a first rotational direction;
- and
- a pump configured to provide fluid to a distal portion of the elongate flexible drive shaft,
- wherein the outer housing contains the electric motor and the pump.
Dependencies are inferred from the claim text.