A surgical tool may move a saw blade in a sagittal plane. The saw blade has a distal blade end with teeth. The surgical tool comprises a handpiece body and a carrier operatively attached to the handpiece body. The carrier is configured for oscillating movement about a pivot axis. A retainer is operatively attached to the carrier for concurrent movement and releasably secures the saw blade in the sagittal plane relative to the handpiece body. An actuator is coupled to the handpiece body to selectively oscillate the carrier relative to the handpiece body such that the retainer and the saw blade pivot back and forth about the pivot axis within the sagittal plane. An ultrasonic transducer is operatively attached to the handpiece body to selectively generate ultrasonic energy to resonate the saw blade such that the teeth at the distal blade end reciprocate proximally and distally within the sagittal plane.

A microcavitation system, device, and ultrasonic probe assembly for generating directional microcavitation includes a cannula and an ultrasonic transmission member. The ultrasonic transmission member has a first end portion and a second end spaced apart from the first end portion. The cannula has a tubular side wall, a cannula lumen, a fluid input port, a proximal end, a distal end, and a distal end portion. The ultrasonic transmission member is located in the cannula lumen. The fluid input port of the cannula is connected in fluid communication with the cannula lumen. The distal end portion of the cannula is configured to define a cavitation generation chamber. The cavitation generation chamber has a distal end wall at the distal end of the cannula that is configured as a sieve to define a plurality of apertures.

A method of priming a surgical instrument, wherein the surgical instrument includes a shaft assembly including a lumen, and a valve assembly. The valve assembly includes a first inlet configured to receive the fluid from a fluid source, a second inlet configured to receive a suction from a vacuum source, an outlet in fluid communication with the lumen, a valve chamber, and at least one valve plug. The method includes activating the fluid source to provide the fluid to the first inlet, activating the vacuum source to provide the suction to the second inlet, transitioning the at least one valve plug from a first position to a second position, and transferring a first portion of the fluid from the first inlet toward the vacuum source through the second inlet thereby priming the surgical instrument.

An electrosurgical system may include an electrosurgical generator configured to generate electrosurgical energy; and an electrosurgical instrument coupled to the electrosurgical generator. The electrosurgical instrument may include a motion and/or position sensor, where the electrosurgical generator is configured to control the electrosurgical energy based on a sensor signal from the sensor.

A handpiece-type high-frequency vibration cutting device includes a housing (10); a vibration device (21); a holding member (11); a tool (12); and a controller (20) to control the operations of the vibration device (21). The controller (20) controls the vibration of the tool (12) due to the vibration device (21) such that the vibration is burst oscillation in which vibration and stop of vibration are repeated. The controller (20) also controls the entire burst frequency f1 of the tool (12) to be included in the range of 1 to 8 [Hz], one cycle of the burst frequency f1 including a burst period with the holding member (11) vibrating and a stop period with the tool (12) not vibrating. The controller (20) also controls the vibration frequency f2 of the tool (12) during the burst period such that the vibration frequency f2 is in the range of 20 to 60 [kHz].

An ultrasonic probe assembly includes a handle configured to be handheld, and has a housing that defines a chamber. A carriage is slidably coupled to the housing. The carriage has an operator arm configured to be operable by a user to move the carriage between a first position and a second position. An ultrasonic catheter has a catheter sheath and an ultrasonic core wire. The ultrasonic catheter has a proximal end portion and a distal end portion. An ultrasonic transducer is positioned in the chamber of the housing. The ultrasonic transducer is connected to the proximal end portion of the ultrasonic catheter, and the ultrasonic transducer is connected to the carriage. The ultrasonic transducer is configured to longitudinally move in the chamber of the housing between a retracted position and an extended position coincident with a corresponding longitudinal movement of the carriage.

A method of treating a subject having one or more eye conditions comprises applying phacoemulsification ultrasound to a subject having one or more eye conditions; and applying an excimer laser to the subject to preventatively treat glaucoma. A system for treatment of one or more eye conditions in a subject comprises a phacoemulsification ultrasound system and an excimer laser system. The phaco system comprises an ultrasound probe for treating cataracts in the subject. The excimer laser system comprises an excimer laser and a fiber probe that applies pulsed shots of energy from the excimer laser to the eye to prophylactically treat glaucoma.

A drive device includes: a first circuit including an alternating current (AC) power supply, a primary winding constituting a first side of an output transformer, and an input line connecting the primary winding and the AC power supply to each other; a second circuit including a pair of electrodes detachably connected to an ultrasound treatment instrument, a secondary winding constituting a second side of the output transformer, and a pair of output lines connecting the pair of electrodes and the secondary winding; and a pair of third circuits each having one end respectively connected to the output lines and another end connected to a ground. Each of the pair of third circuits includes an inductor being a passive element, and a capacitor being a passive element connected in series to the inductor. Each of the pair of third circuits is connected to each of the output lines.

A vibration transmitter includes: a proximal end extending portion; a supported portion; a distal end extending portion; a first relay unit provided between the supported portion and the proximal end extending portion; and a second relay unit provided between the supported portion and the distal end extending portion. The second relay unit includes a horn that is constructed such that an outer diameter at a position continuously adjacent to the supported portion is larger than: (i) an outer diameter of the first relay unit at a position continuously adjacent to the supported portion, and (ii) the outer diameter of the distal end extending portion. The horn expands amplitude of vibration output from a distal end of the distal end extending portion to be larger than a maximum amplitude at an antinode of vibration in the first relay unit or the proximal end extending portion.

A tissue treatment catheter and system include a catheter shaft sized and shaped for delivery through a radial artery to a blood vessel of a patient. The catheter shaft has several lumens, including a guidewire lumen, a cable lumen, and one or more fluid lumens. A stiffening web extends from the guidewire lumen and is thicker than an outer wall of the catheter shaft. The tissue treatment catheter and system include an ultrasound transducer, a balloon surrounding the ultrasound transducer, and a single electrical cable electrically connected to the ultrasound transducer to deliver sufficient electrical energy during sonication to the transducer such that the transducer thermally induces modulation of neural fibers surrounding the blood vessel sufficient to improve a measurable physiological parameter corresponding to a diagnosed condition of the patient. Other embodiments are described and claimed.