Patent ID: 9549753
Date: 2017-01-24
CPC Classifications: A61B,A61M,B05B,B08B,B24C

Claim:
1. An ultrasonically pulsated waterjet system comprising: a handpiece apparatus comprising a handpiece body member and a cylindrical clamping member coupled with the handpiece body member, the handpiece body member having opposite distal and proximal ends and defining an elongate longitudinal passageway extending therein along a longitudinal axis, the elongate passageway forming a nozzle terminating in an elongate pressure tube exiting the handpiece body member at a distal end thereof; a set of biasing members disposed between the cylindrical clamping member and the handpiece body member; a fluid port comprising a coupling member configured to selectively connect the passageway of the handpiece body member with an associated source of a pressurized fluid for selectively permitting the pressurized fluid to flow into the passageway; an elongate delivery tube apparatus extending from the distal end of the handpiece body member to a working tip portion of the delivery tube apparatus, the delivery tube apparatus defining an elongate conduit in operative fluid communication with the passageway of the handpiece body member; an ultrasonic transducer member comprising an elongate piston member disposed in the passageway, the elongate piston member having opposite tip and coupling ends and an outwardly extending flange member arranged between the opposite tip and coupling ends, the tip end being shaped to correspond with a selected portion of the passageway, the coupling end comprising a coupling portion configured to selectively couple the ultrasonic transducer member with an associated source of ultrasonic vibrations whereby the ultrasonic vibrations cause the ultrasonic transducer member to vibrate along the longitudinal axis to periodically interrupt the pressurized fluid flow at the nozzle with the tip end thereby delivering a pulsated jet of the pressurized fluid to the delivery tube apparatus for dissociation of associated target tissue adjacent the working tip portion by the pulsated jet of the pressurized fluid impacting the associated target tissue, and a portion of the outwardly extending flange member being held between the set of biasing members for supporting the piston member relative to the handpiece body member and the cylindrical clamping member enabling the elongate piston member to vibrate in the passageway along the longitudinal axis; and, a suction aspirator apparatus comprising a cannula extending from the working tip portion along a selected length of the delivery tube apparatus, and an elongate flexible suction tube operatively coupled with an associated fluid collector, wherein the dissociated target tissue is drawn into the cannula at the working tip portion and communicated to the associated fluid collector via the elongate flexible suction tube.