A system for fracturing a frame of a deployed prosthesis with ultrasonic vibration includes a shaft, a tip assembly, an ultrasonic electric generator, and an ultrasonic transducer. The shaft includes a proximal portion and a distal portion. The tip assembly is coupled to the distal portion of the shaft. The tip assembly includes a cutting edge. The ultrasonic transducer is electrically coupled to the ultrasonic generator. Ultrasonic vibration generated by the ultrasonic transducer is translated to the tip assembly. The cutting edge of the tip assembly is configured to focus the vibration of the tip assembly onto a frame of a deployed prosthesis to fracture the frame of the prosthesis. The ultrasonic transducer may be coupled to the proximal portion or the distal portion of the shaft.

A vibration transmitter can include a straight portion, a curved portion, a first curved surface provided on an external surface of the curved portion, a second curved surface facing a side opposite to the first curved surface and a first portion provided on the first curved surface. The first portion can extend towards a side opposite to the side toward which the curved portion is curved and a distance between the first portion and an imaginary curved surface can increase from the proximal side toward the distal side, and the imaginary curved surface being parallel with the second curved surface.

A method for using an endoluminal device to modify an intravascular lesion includes providing an ultrasound-producing mechanism that converts an electric current into vibrational energy at an ultrasonic frequency; providing a sheath including a sheath lumen, wherein the sheath is configured to retract from a first, fully extended position of the sheath and extend from a second, fully retracted position of the sheath; providing a core wire disposed within the sheath lumen of the sheath, the core wire being coupled to the ultrasound-producing mechanism via a sonic connector, the core wire being excited by the vibrational energy at the ultrasonic frequency when the ultrasound-producing mechanism is activated; and retracting the sheath relative to the core wire to expose a working length of a distal portion of the core wire for ultrasound-based modification of one or more intravascular lesions.

A surgical instrument includes an end effector, and a shaft assembly. The end effector includes an ultrasonic blade, a rotating body, and a clamp arm movable between an open and a closed position. The shaft assembly extends along an axis and includes clamp arm clocking assembly and a clamp arm pivot assembly. The clamp arm clocking assembly can drive the rotating body and the clamp arm between a first clocked position and a second clocked position. The clamp arm pivot assembly includes an actuator body defining a track, where the actuator body can actuate to drive the clamp arm between the open position and the closed position while the actuator body is in a rotational position relative to the ultrasonic blade. The track houses a portion of the clamp arm in the first clocked position and the second clocked position while the actuator body is in the rotational position.

Disclosed is an ultrasonic scalpel bit, comprising a bit tip (1), a bit bar (2) and a bit body (3), one end of the bit bar (2) being connected to the bit tip (1), and the other end of the bit bar (2) being connected to the bit body (3), wherein a main body of the bit tip (1) is of a flat sheet structure, an upper and a lower face of which respectively form an upper bit ridge (11) and a lower bit ridge (12) of the bit tip (1); a protrusion (14) is formed at a front end of the upper bit ridge (11); the upper bit ridge (11) has a thickness greater than that of the flat sheet structure and that of the lower bit ridge (12); and the protrusion (14) is smooth and free of edges.

An ultrasonic surgical instrument including a blade that treats tissue and a fluid control system to cool the blade by pumping cooling fluid through the blade. The blade defines a blade lumen in fluid contact with an inflow and return conduit of the fluid control system. The inflow conduit defines an open distal end positioned within the blade lumen adjacent the distal end of the blade lumen and the return conduit defines an open distal end positioned within the blade lumen adjacent the proximal end of the blade lumen. The fluid control system may further include a fluid reservoir holding the cooling fluid and an inflow pump. The inflow pump is configured to deliver the fluid from the fluid reservoir, through the inflow conduit and the blade lumen, and into return conduit.

A surgical instrument includes an end effector, and a shaft assembly. The end effector includes an ultrasonic blade, a rotating body, and a clamp arm movable between an open and a closed position. The shaft assembly extends along an axis and includes clamp arm clocking assembly and a clamp arm pivot assembly. The clamp arm clocking assembly can drive the rotating body and the clamp arm between a first clocked position and a second clocked position. The clamp arm pivot assembly includes an actuator body defining a track, where the actuator body can actuate to drive the clamp arm between the open position and the closed position while the actuator body is in a rotational position relative to the ultrasonic blade. The track houses a portion of the clamp arm in the first clocked position and the second clocked position while the actuator body is in the rotational position.

An ultrasonic surgical tool system with a tip capable of simultaneously vibrating in plural modes. The system includes a console capable of supplying a drive signal to the tip that includes plural components. Each component has a frequency characteristic that is based in part on the equivalent of current through the mechanical components of the tip. The frequency components are different from each other. Based on the application of drive signal the tip undergoes non-linear vibrations.

An ultrasonic surgical instrument comprises a cylindrical shaft and a blade at a distal or free end of the shaft, the blade being unitary and continuous with the shaft, without an intervening joint. The shaft has a longitudinal axis and the blade includes a flat or planar blade body with a proximal end eccentrically disposed relative to the shaft axis. Thus, the blade body or at least a proximal end portion thereof is disposed eccentrically relative to the shaft. The blade in its entirely may be inclined relative to the shaft axis or extend parallel thereto.

An ultrasonic treatment instrument for use in arthroscopic surgery, includes a probe having a main body that is configured to transmit ultrasonic vibration, and a treatment portion that is provided on a distal side of the main body and is configured to cut a hard tissue and/or a soft tis e by transmission of the ultrasonic vibration; and a sheath unit that includes an inner sheath covering an outer peripheral surface of the main body in the probe, and an outer sheath covering an outer peripheral surface of the inner sheath and forming a suction path between the outer peripheral surface of the inner sheath and the outer sheath, wherein a distal end of the inner sheath extends to a position closer to the treatment portion of the probe than a distal end of the outer sheath.