Abstract: Rotational atherectomy devices and systems can remove or reduce stenotic lesions in implanted grafts by rotating one or more abrasive elements within the graft. The abrasive elements can be 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, individual abrasive elements are attached to the drive shaft at differing radial angles in comparison to each other (e.g., configured in a helical array). The centers of mass of the abrasive elements can define a path that fully or partially spirals around the drive shaft.

Abstract: Disclosed is a method, system, and computer-readable medium for enabling a cross-platform, multi-component customer centric system for parking is provided. The method includes identifying a plurality of payment options which allow a customer to balance convenience, expense and self-service to enable a customer centric parking experience. The method also a plurality of means by which a customer can engage or book parking combining corporate information, loyalty information, customer affiliation information and proprietary revenue management techniques which enable a highly customer centric set of choices on how, when and where to book parking.