Abstract: A surgical hub is configured to authenticate data communications with surgical devices. The surgical hub comprises a processor and a memory storing instructions executable by the processor to: transmit a public key to a detected surgical device; receive a message from the surgical device encrypted using the public key associated with the surgical hub, the encrypted message comprising a shared secret associated with the surgical device and a checksum function associated with the shared secret, wherein the shared secret comprises an identifier assigned to the surgical device; decrypt the encrypted message, using a private key associated with the public key, to reveal the shared secret and the checksum function; receive data communications from the surgical device encrypted using the shared secret, and comprising a checksum value, derived via the checksum function, based on the data communications; and decrypt the data communications using the shared secret.

Abstract: A method of displaying an operational parameter of a surgical system is disclosed. The method includes receiving, by a cloud computing system of the surgical system, first usage data, from a first subset of surgical hubs of the surgical system; receiving, by the cloud computing system, second usage data, from a second subset of surgical hubs of the surgical system; analyzing, by the cloud computing system, the first and the second usage data to correlate the first and the second usage data with surgical outcome data; determining, by the cloud computing system, based on the correlation, a recommended medical resource usage configuration; and displaying, on respective displays on the first and the second subset of surgical hubs, indications of the recommended medical resource usage configuration.

Abstract: Various systems and methods for controlling the activation of energy surgical instruments are disclosed. An advance energy surgical instrument, such an electrosurgical instrument or an ultrasonic surgical instrument, can include one or more sensor assemblies for detecting the state or position of the end effector, arm, or other components of the surgical instrument. A control circuit can be configured to control the activation of the surgical instrument according to the state or position of the components of the surgical instrument.

Abstract: Disclosed is a method including detecting a modular surgical device within bounds of a surgical operating room; connecting the modular surgical device to a surgical hub; connecting the surgical hub to a cloud-based system; transmitting surgical data associated with a surgical procedure being performed in the surgical operating room from the modular surgical device to the surgical hub; and transmitting the surgical data from the surgical hub to the cloud-based system.

Abstract: A surgical evacuation system for communication between a smoke evacuation device and a filter device through a communication circuit is provided. The surgical evacuation system comprises a smoke evacuation device comprising a pump and a motor operably coupled to the pump. The surgical evacuation system also comprises a communication circuit and a filter device in communication with the smoke evacuation device through the communication circuit. The filter device comprises a plurality of filter components including a plurality of filter elements and a plurality of filter sensors. The plurality of filter elements comprises at least one of a fluid filter, particulate filter, and a charcoal filter. The communication circuit is configured to authenticate the plurality of filter components, verify a remaining life of at least one of the plurality of filter components, update parameters output from the plurality of filter components, and record errors output from the plurality of filter components.

Abstract: An interactive control unit is disclosed. The interactive control unit includes an interactive touchscreen display, an interface configured to couple the control unit to a surgical hub, a processor, and a memory coupled to the processor. The memory stores instructions executable by the processor to receive input commands from the interactive touchscreen display located inside a sterile field and transmit the input commands to the surgical hub to control devices coupled to the surgical hub located outside the sterile field.

Abstract: Various embodiments are directed to a method of driving an end effector coupled to an ultrasonic drive system of a surgical instrument. The method comprises generating at least one electrical signal. The at least one electrical signal is monitored against a first set of logic conditions. A first response is triggered when the first set of logic conditions is met. A parameter is determined from the at least one electrical signal.

Abstract: A method for controlling a waveform shape of a motional branch current in an ultrasonic transducer of a surgical device. The method may comprise generating a transducer drive signal by selectively recalling, using a direct digital synthesis (DDS) algorithm, drive signal waveform samples stored in a look-up table (LUT), generating samples of current and voltage of the transducer drive signal when the transducer drive signal is communicated to the surgical device, determining samples of the motional branch current based on the current and voltage samples, a static capacitance of the ultrasonic transducer and a frequency of the transducer drive signal, comparing each sample of the motional branch current to a respective target sample of a target waveform to determine an error amplitude, and modifying the drive signal waveform samples stored in the LUT such that an amplitude error between subsequent samples of the motional branch current and respective target samples is reduced.

Abstract: In various embodiments, an end effector comprising a first jaw, a second jaw, an implantable arrangement, first cavities, and second cavities is disclosed. At least one of the first and second jaws is movable to compress tissue between the first jaw and second jaws. The implantable arrangement comprises a first layer and a second layer. The first layer and the second layer comprise a polymeric composition. The first cavities are defined in the first layer and interconnectedly form a permeable first layer. The first cavities releasably retain a first therapeutic agent configured to induce a first biological response in the tissue. The second cavities are defined in the second layer and interconnectedly form a permeable second layer. The second cavities releasably retain a second therapeutic agent configured to induce a second biological response in the tissue. The first therapeutic agent and the second therapeutic agent are different.

Abstract: A method for determining motional branch current in an ultrasonic transducer of an ultrasonic surgical device over multiple frequencies of a transducer drive signal. The method may comprise, at each of a plurality of frequencies of the transducer drive signal, oversampling a current and voltage of the transducer drive signal, receiving, by a processor, the current and voltage samples, and determining, by the processor, the motional branch current based on the current and voltage samples, a static capacitance of the ultrasonic transducer and the frequency of the transducer drive signal.

Abstract: An end effector of an electrosurgical device may include a discharge port, an aspiration port, two electrodes, and a diverter formed from a porous material. The diverter includes a matrix having voids to receive fluid from the discharge port. A releasable diverter assembly may include an assembly body configured to receive a pair of electrodes and a diverter composed of a porous material. A shaft assembly of an electrosurgical device may include two electrodes and two fluid cannulae. Each cannula may be disposed proximate to a surface of each of the electrodes. An end effector of an electrosurgical device may include a fluid discharge port, two electrodes, and a diverter disposed therebetween. A proximal edge of the diverter may form a secant line with respect to the end of the discharge port so that fluid emitted by the discharge port is disposed on a surface of the diverter.

Abstract: A surgical apparatus comprises a body, an ultrasonic transducer, a shaft, and an end effector. The ultrasonic transducer is operable to convert electrical power into ultrasonic vibrations. The shaft couples the end effector and the body together. The end effector comprises an ultrasonic blade in acoustic communication with the ultrasonic transducer. The ultrasonic blade includes a recess region having a plurality of recesses. The recess region is tapered such that the cross-sectional area of the recess region decreases along the length of the recess region. The ultrasonic blade is also curved such that a central longitudinal axis of the ultrasonic blade extends along a curved path. A reference circuit is used to account for voltage drops of unknown values during operation of the surgical apparatus.

Abstract: An ultrasonic instrument includes a body, an actuation assembly, a shaft assembly, and an end effector. The actuation assembly includes an activation member that is operable to move in a first direction to select a mode of operation. The shaft assembly extends distally from the body and includes an acoustic waveguide. The end effector includes an ultrasonic blade that is in acoustic communication with the acoustic waveguide. The activation member is operable to move in a second direction to activate the end effector in a mode of operation selected by movement of the activation member in the first direction.

Abstract: An apparatus includes a shaft assembly and an end effector. The shaft assembly includes an outer sheath, at least one irrigation conduit, and at least one suction conduit. The end effector includes a first electrode, a second electrode, and a web. The electrodes extend distally relative to a distal end of the outer sheath. The electrodes are operable to apply bipolar RF energy to tissue. The web extends laterally between the first and second electrodes. The web is positioned distal to the distal end of the outer sheath.

Abstract: A surgical generator is disclosed including an ultrasonic generator module to provide at an ultrasonic drive signal for driving an ultrasonic surgical device and an electrosurgical generator module to provice an electrosurgical drive signal for driving an electrosurgical device. At least one of providing the ultrasonic drive signal or providing the electrosurgical drive signal includes recalling a waveform sample from a look-up table (LUT), modifying the waveform sample to generate a modified waveform based on voltage and current feedback information to pre-distort the waveform sample on a dynamic ongoing basis, indexing each stored voltage and current feedback data pair based on a corresponding LUT sample that was output when the voltage and current feedback data pair was acquired, synchronizing the LUT sample and the voltage and current feedback data pair to correct timing and stability of the pre-distorted waveform sample, and providing the modified waveform to an output stage.

Abstract: Surgical generator systems and related methods are disclosed herein. An exemplary generator system can include one or more auxiliary transformer stages to boost the amount of power applied to low-impedance tissue, or to adjust the output voltage and current delivered to a surgical instrument. The auxiliary transformer stage(s) can be disposed in the generator, in the surgical instrument, and/or in an intermediate component. Exemplary generator systems can also include an accessory box disposed inline between a generator and a surgical instrument to provide expanded functionality to the system. The accessory box can have a ground plane that is isolated from the ground planes of the mains supply, the generator, and/or the surgical instrument to reduce or eliminate patient leakage current.

Abstract: A surgical system includes a plurality of voice sensors located in a surgical environment and configured to detect sound and generate a first plurality of signals. The surgical system also includes a position indicator, in proximity to a designated user, configured to indicate a first position of the designated user and generate a second signal representative of the first position. The surgical system further includes a processor configured to receive the first plurality of signals and the second signal and determine, based on the first plurality of signals, a second position. The processor is also configured to compare the detected sound with registered voice command of the designated user stored in a memory to verify the designated user's credentials, and send a command signal to a surgical instrument to carry out an operation related to the voice command based on at least one of the verification of the designated user's credentials, the first position and the second position.

Abstract: Methods and devices are provided for retracting a cutting assembly in the event of a failure on a motorized electrosurgical device. As an example, a surgical device is provided that includes a handle portion with an elongate shaft extending distally that has first and second jaws configured to engage tissue therebetween. A cutting assembly cuts tissue engaged between the first and second jaws. A drive shaft extends from the handle through the elongate shaft and moves the cutting assembly. A motorized gear assembly moves the drive shaft. The drive shaft is movable between a first position in which the drive shaft is engaged with the motorized gear assembly such that actuation of the motorized gear assembly drives the drive shaft, and a second position in which the drive shaft is disengaged from the motorized gear assembly such that the drive shaft can move independent of the gear assembly.

Abstract: A surgical system includes a plurality of voice sensors located in a surgical environment and configured to detect sound and generate a first plurality of signals. The surgical system also includes a position indicator, in proximity to a designated user, configured to indicate a first position of the designated user and generate a second signal representative of the first position. The surgical system further includes a processor configured to receive the first plurality of signals and the second signal and determine, based on the first plurality of signals, a second position. The processor is also configured to compare the detected sound with registered voice command of the designated user stored in a memory to verify the designated user's credentials, and send a command signal to a surgical instrument to carry out an operation related to the voice command based on at least one of the verification of the designated user's credentials, the first position and the second position.

Abstract: Various embodiments are directed to a method of driving an end effector coupled to an ultrasonic drive system of a surgical instrument. In accordance with the method, a generator is configured to generate at least one time varying electrical signal having a resonant frequency, monitor the resonant frequency of the at least one electrical signal, calculate a frequency slope between frequency data points of the time varying electrical signal, where the frequency slope is the change in resonant frequency over time, compare the frequency slope to a threshold frequency slope, and trigger a first response of the generator when the frequency slope crosses the threshold frequency slope.