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: A surgical instrument, has an end effector that includes an ultrasonic blade, and a clamp arm that moves relative to the ultrasonic blade from an opened position toward an intermediate position and a closed position. The clamp arm is offset from the ultrasonic blade to define a predetermined gap in the intermediate position between the opened position and the closed position. A clamp arm actuator connects to the clamp arm and moves from an opened configuration to a closed configuration to direct the clamp arm from the opened position toward the intermediate position and the closed position. A spacer connects with the clamp arm to inhibit movement of the clamp arm from the intermediate position toward the closed position for maintaining the predetermined gap between the clamp arm and the ultrasonic blade.

Abstract: An endoscope system comprises an endoscope and a display to display image content captured by the endoscope. The endoscope system also comprises one or more sensors located in a headrest and configured to detect an input at the headrest. The endoscope system also comprises a control module configured to receive one or more sensor signals from the one or more sensors. The one or more sensor signals indicate movement of the headrest with respect to a support on which the headrest is mounted or pressure applied to the headrest. The control module is also configured to adjust the image content displayed by the display in response to the one or more sensor signals.

Abstract: A method for performing a surgical procedure includes adjusting an encoding configuration of a video encoder in response to receiving an input associated with a change of state of a surgical system performing the surgical procedure, and encoding image data of the surgical procedure captured after the change of state based on the adjusted encoding configuration.

Abstract: Implementations relate to medical simulations for medical procedure training. In some implementations, a system includes a simulation processing component including at least one processor and which generates a virtual environment using position signals that describe at least one of a position and a configuration of a physical surgical instrument relative to a physical surgical site. The simulation processing component updates the virtual environment according to changes in the position signals and according to control signals corresponding to inputs by a user of the system. The updating in cludes moving a virtual surgical instrument within the virtual environment, where an interaction of the virtual surgical instrument with a virtual surgical site is defined at least partly by a physical relationship between the physical surgical instrument and the physical surgical site.

Abstract: Implementations relate to medical simulations for medical procedure training. In some implementations, a system includes a simulation processing component including at least one processor and which generates a virtual environment using position signals that describe at least one of a position and a configuration of a physical surgical instrument relative to a physical surgical site. The simulation processing component updates the virtual environment according to changes in the position signals and according to control signals corresponding to inputs by a user of the system. The updating includes moving a virtual surgical instrument within the virtual environment, where an interaction of the virtual surgical instrument with a virtual surgical site is defined at least partly by a physical relationship between the physical surgical instrument and the physical surgical site.

Abstract: An endoscope system comprises an endoscope and a display to display image content captured by the endoscope. The endoscope system also comprises one or more sensors located in a headrest and configured to detect an input at the headrest. The endoscope system also comprises a control module configured to receive one or more sensor signals from the one or more sensors. The one or more sensor signals indicate movement of the headrest with respect to a support on which the headrest is mounted or pressure applied to the headrest. The control module is also configured to adjust the image content displayed by the display in response to the one or more sensor signals.

Abstract: An endoscope control system comprises one or more sensors located in a headrest and configured to detect an input at the headrest. The one or more sensors include at least one of an array of pressure sensors positioned adjacent to a forehead rest surface, a joystick controller mounted in the headrest, or a slip plate mounted to the headrest. The endoscope control system further comprises an endoscope control module configured to receive one or more sensor signals from the sensors indicating movement of the headrest or pressure applied to the headrest and providing an indication of intended movement of an image provided by an endoscope. The endoscope control system further comprises an endoscope manipulation module configured to receive the indication of intended movement from the endoscope control module and generate one or more actuation signals to activate one or more actuators configured to cause the intended movement of the image.

Abstract: A method for performing a surgical procedure includes adjusting an encoding configuration of a video encoder in response to receiving an input associated with a change of state of a surgical system performing the surgical procedure, and encoding image data of the surgical procedure captured after the change of state based on the adjusted encoding configuration.

Abstract: A method for performing a surgical procedure includes adjusting an encoding configuration of a video encoder in response to receiving an input associated with a change of state of a surgical system performing the surgical procedure, and encoding image data of the surgical procedure captured after the change of state based on the adjusted encoding configuration.

Abstract: A method of searching video content for specific subject matter of interest augments traditional image data analysis methods with analysis of contemporaneously gathered non-image data. One application involves video recordings of medical procedures performed using a medical device. When a user desires to locate portions of video recordings showing a medical event of interest, one or more medical device system events likely to correspond to the occurrence of the medical event of interest are identified from one or more procedure event logs. Timestamps associated with these system events are used to identify candidate video clips from the procedure video recordings. Image data analysis is performed on the candidate video clips to determine whether each candidate video clip contains the medical event of interest.

Abstract: Implementations relate to medical simulations for medical procedure training. In some implementations, a system includes a simulation processing component including at least one processor and which generates a virtual environment using position signals that describe at least one of a position and a configuration of a physical surgical instrument relative to a physical surgical site. The simulation processing component updates the virtual environment according to changes in the position signals and according to control signals corresponding to inputs by a user of the system. The updating includes moving a virtual surgical instrument within the virtual environment, where an interaction of the virtual surgical instrument with a virtual surgical site is defined at least partly by a physical relationship between the physical surgical instrument and the physical surgical site.

Abstract: Implementations relate to medical simulations for medical procedure training. In some implementations, a system includes a simulation processing component including at least one processor and which generates a virtual environment using position signals that describe at least one of a position and a configuration of a physical surgical instrument relative to a physical surgical site. The simulation processing component updates the virtual environment according to changes in the position signals and according to control signals corresponding to inputs by a user of the system. The updating includes moving a virtual surgical instrument within the virtual environment, where an interaction of the virtual surgical instrument with a virtual surgical site is defined at least partly by a physical relationship between the physical surgical instrument and the physical surgical site.

Abstract: A card recognition system comprises an imaging device configured to capture a raw image of at least a portion of a card, and a processor operably coupled with the imaging device. The processor is configured to perform an image processing analysis of the raw image to identify measurements of at least one of a rank area around a rank of the card, and a suit area around a suit of the card, and automatically generate a calibration file based, at least in part, on the image processing analysis. A card handling device comprises a card infeed, a card output, and a card recognition system. A method for tuning a card handling device comprises capturing a plurality of images from a deck of cards, storing the images in memory, analyzing the plurality of images for card identification information, and generating a calibration file including parameters associated with the card identification information.

Abstract: Control of an endoscope in a surgical system is described. In some embodiments, the endoscope can be controlled by movement of the surgeon's head or face at a surgeon's console. In some embodiments the endoscope control system includes one or more sensors, one or more actuators, and one or more processors coupled to the one or more sensors and the one or more actuators. The one or more processors are configured to receive one or more sensor signals from the one or more sensors, the one or more sensor signals indicating movement of a head of a surgeon and providing an indication of movement of an image received by an endoscope, generate one or more actuation signals based on the indication of movement, and actuate the one or more actuators using the one or more actuation signals to move the endoscope.

Abstract: Control of the endoscope in a surgical system is described. In some embodiments, the endoscope can be controlled by movement of the surgeon's head or face at a surgeon's console. In some embodiments, the endoscope can be controlled using sensors integrated with a surgeon's headrest mounted on the surgeon's console.

Abstract: A medical robotic system that includes a robotically controlled surgical instrument. The system includes a constraint controller that constrains the movement of the instrument based on a predetermined parameter. The parameter may be a surgical space, wherein the instrument cannot be moved into, or alternatively cannot be moved out of, the space. The surgically constrained spaced may be defined through a telestrator screen that allows a surgeon to point and click the boundaries of the space.

Abstract: A method of searching video content for specific subject matter of interest augments traditional image data analysis methods with analysis of contemporaneously gathered non-image data. One application involves video recordings of medical procedures performed using a medical device. When a user desires to locate portions of video recordings showing a medical event of interest, one or more medical device system events likely to correspond to the occurrence of the medical event of interest are identified from one or more procedure event logs. Timestamps associated with these system events are used to identify candidate video clips from the procedure video recordings. Image data analysis is performed on the candidate video clips to determine whether each candidate video clip contains the medical event of interest.

Abstract: An earth-boring tool includes a body comprising a pocket in a leading end thereof for accepting at least a portion of a bearing element assembly. A bearing element assembly may be disposed within the pocket, and the bearing element assembly may include a retaining element at least partially disposed in a groove in a sidewall of the pocket and a bearing element. The bearing element may include a distal end having a bearing surface, a proximal end, and a side surface between the distal end and the proximal end, the side surface comprising a feature configured to abut the retaining element, wherein mechanical interference between the feature and the retaining element axially retains the bearing element within the pocket. Methods include disengaging a mechanical retention device retaining a bearing element within a pocket in a body of the earth-boring tool, and removing the bearing element from the pocket.

Abstract: A card recognition system comprises an imaging device configured to capture a raw image of at least a portion of a card, and a processor operably coupled with the imaging device. The processor is configured to perform an image processing analysis of the raw image to identify measurements of at least one of a rank area around a rank of the card, and a suit area around a suit of the card, and automatically generate a calibration file based, at least in part, on the image processing analysis. A card handling device comprises a card infeed, a card output, and a card recognition system. A method for tuning a card handling device comprises capturing a plurality of images from a deck of cards, storing the images in memory, analyzing the plurality of images for card identification information, and generating a calibration file including parameters associated with the card identification information.