A method for controlling an operation of an ultrasonic blade of an ultrasonic electromechanical system is disclosed. The method includes providing an ultrasonic electromechanical system comprising an ultrasonic transducer coupled to an ultrasonic blade via an ultrasonic waveguide; applying, by an energy source, a power level to the ultrasonic transducer; determining, by a control circuit coupled to a memory, a mechanical property of the ultrasonic electromechanical system; comparing, by the control circuit, the mechanical property with a reference mechanical property stored in the memory; and adjusting, by the control circuit, the power level applied to the ultrasonic transducer based on the comparison of the mechanical property with the reference mechanical property.

A surgical instrument is disclosed. The surgical instrument includes a shaft, a sensing array and a fluid detection circuit. The sensing array is positioned within the shaft. The fluid detection circuit is electrically coupled to the sensing array, and is configured to determine when a fluid originating from an environment external to the shaft is present within the shaft.

A surgical instrument comprising an articulatable end effector and a control system that controls the articulation of the end effector and provides feedback to the user of the surgical instrument.

Systems and methods for facilitating assessment and convenient display of graphical output indicative of lesion formation and outputting data indicative of lesion formation to a 3D mapping system to display on a 3D model are disclosed herein.

Various systems and methods for determining the state of an end effector of an ultrasonic surgical instrument are disclosed. A control circuit can be configured to measure a complex impedance of an ultrasonic electromechanical system including an ultrasonic blade and compare the measured complex impedance to reference complex impedance patterns that each correspond to a state of the end effector. Accordingly, the control circuit can further be configured to determine the state of the end effector according to which of the plurality of reference complex impedance patterns the measured complex impedance corresponds.

A control console for a powered surgical tool. The console includes a transformer that supplies the drive signal to the surgical tool. A linear amplifier with active resistors selectively ties the ends of the transformer primary winding between ground and the open circuit state. Feedback voltages from the transformer windings regulate the resistances of the active resistors.

A method for adjusting the operation of a surgical instrument using machine learning in a surgical suite is disclosed. The method comprises the steps of gathering data during surgical procedures, wherein the surgical procedures include the use of a surgical instrument, analyzing the gathered data to determine an appropriate operational adjustment of the surgical instrument, and adjusting the operation of the surgical instrument to improve the operation of the surgical instrument.

A spinal implant assembly includes a set screw having a central opening that extends from a first end of the set screw toward a second end of the set screw. The second end of the set screw includes a bottom bore portion, and the set screw is configured to engage with an anchoring member. The spinal implant assembly includes a capacitive assembly having an integrated circuit located within an internal portion the capacitive assembly, and a plurality of capacitive plates positioned on an outside bottom surface of the capacitive assembly. Each of the capacitive plates is in operable communication with the integrated circuit, and the capacitive assembly is configured to be received within the central opening of the set screw, such that the plurality of capacitive plates are positioned above the bottom bore portion.

An ultrasonic surgical tool system for actuating a handpiece with a tip. The frequency of the drive signal applied to the handpiece drivers is a function of the equivalent of current through the mechanical components of the handpiece and tip and the frequency responsiveness of these components.

A surgical instrument is disclosed comprising a housing and a control circuit mounted to and/or embedded in the housing.