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US 2026/0198911 A1Published application
Device with features for rotational atherectomy and lithotripsy
AssigneeCardio Flow, Inc.
InventorsJihad A. Mustapha, Gary M. Petrucci, Cassandra Ann Piippo Svendsen, Ryan D. Welty, Peter Samo Dovgan
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Abstract
Some embodiments of a rotational atherectomy and lithotripsy system can partially or completely remove a stenotic lesion in blood vessels by rotating one or more abrasive elements to abrade and breakdown the lesion, by emitting acoustic energy to fracture and breakdown the lesion, or a combination of both.
Claims20
A method of removing stenotic lesion material from an artery of a patient, the method comprising:
- advancing a torque-transmitting coil of a rotational atherectomy and lithotripsy device into an artery of the patient;
- rotating the torque-transmitting coil so that at least one abrasive burr mounted to the torque-transmitting coil abrades the stenotic lesion within the artery;
- and
- energizing at least one lithotripsy emitter mounted to the torque-transmitting coil to apply acoustic energy to the stenotic lesion within the artery.
1 more element
A controller for a rotational atherectomy and lithotripsy device, the controller comprising:
- a processor;
- and
- memory storing instructions that, when executed by the processor, cause the processor to:
- activate a motor to drive rotation of an elongated flexible drive shaft of the rotational atherectomy and lithotripsy device, the elongated flexible drive shaft comprising (i) a torque-transmitting coil of one or more filars and (ii) abrasive burrs on a distal end portion of the torque-transmitting coil;
- and
- activate one or more lithotripsy emitters on the distal end portion of the torque-transmitting coil to cause the one or more lithotripsy emitters to selectively emit acoustic energy.
3 more elements
Dependencies are inferred from the claim text.