A surgical treatment device includes a treatment tool including a transducer including a piezoelectric element, an impedance matching circuit, a power supply wiring line, and a control mechanism that controls an amount of power supplied, in which the transducer is located at a distal end of the treatment tool and includes an opening/closing mechanism that opens and closes grip pieces that grip a biological tissue, the piezoelectric element is installed on at least one of the grip pieces, a stress concentration structure is provided on at least one of the grip pieces, and the piezoelectric element is driven by using a first driving frequency in a case in which the biological tissue is sealed, and is driven by using a second driving frequency different from the first driving frequency in a case in which the biological tissue is incised.

A thrombolysis promoting module and an interventional thrombus removal device. The thrombolysis promoting module includes a driving module and a cavitation module. The driving module is an ultrasonic module for generating acoustic energy. The driving module is configured to generate ultrasonic waves with a first frequency in a circumferential direction. The cavitation module is an ultrasonic module for generating acoustic energy. The cavitation module is configured to generate ultrasonic waves with a second frequency greater than the first frequency in the circumferential direction. The thrombolysis promoting module of the present disclosure can drive the microbubble precursors and the thrombolytic drug to penetrate into the thrombus, and can induce cavitation in the microbubble precursors that penetrate into the thrombus or on surfaces of the microbubble precursors to form microbubbles.

Systems and associated methods for ultrasonically-assisted placement of orthopedic implants are described herein. An example system includes an ultrasonic generator, a transducer, and a probe, surgical instrument, and/or an implant. Ultrasonic energy can be delivered to a region of a bone using the system to remove a portion of the bone.

Systems and methods for ultrasonically-assisted placement of orthopedic implants is described herein. An example method may comprise delivering ultrasonic energy to a surgical instrument such as a screw driver, Jamshidi needle, awl, probe, or tap that is in contact with the bone region targeted for removal and/or being prepared for implant placement. The method may further comprise delivering the ultrasonic energy via a probe passed through a cannulated surgical instrument and/or implant. An example system may comprise an ultrasonic generator coupled to a transducer, a probe or surgical instrument coupled to the transducer, a cannulated surgical instrument that allows passage of the probe, and a computing device configured to control the ultrasonic generator and take input from the user.

A system for removing an occlusive clot from a blood vessel comprises a catheter and an apparatus for generating a pulsatile vacuum force to pulse the pressure gradient at a distal end of the catheter. The pulse generator may be integral with or separate from the vacuum pump. The pulse generator may be applied to a flexible tubing between the vacuum pump and the proximal end of the catheter.

Systems and associated methods for ultrasonically-assisted placement of orthopedic implants are described herein. An example system includes an ultrasonic generator, a transducer, and a probe, surgical instrument, and/or an implant. Ultrasonic energy can be delivered to a region of a bone using the system to remove a portion of the bone.

An ultrasonic tool system with a console and a tip that has a distal end that when vibrated vibrates both longitudinally and torsionally. The console applies a drive signal to the drivers that vibrate the tip that is at a longitudinal mechanical cancelation frequency. Consequently, when the tip is vibrated, at the distal end the longitudinal component of a first resonant mode of the tip cancel out the longitudinal component of the second resonant move of the tip so the distal end of the tip engages in vibrations that substantially torsional and only minimally longitudinal.