Abstract: A surgical access assembly includes a cannula including an elongated shaft having a proximal end portion including an anchor inflation port and a distal end portion including an expandable anchor. The elongated shaft includes an inner tube and an outer tube disposed over the inner tube. The inner tube includes at least one groove defined in an outer surface thereof that forms an inflation channel with an inner surface of the outer tube. The inflation channel is in communication with the anchor inflation port and the expandable anchor.

Abstract: A surgical instrument includes a housing, an end effector and an elongated shaft extending therebetween. The end effector is movable between open and closed configurations. The elongated shaft includes a distal portion that is movable between aligned and articulated configurations. The surgical instrument further includes a driving assembly that induces motion in the end effector between open and closed configuration and maintains a closure pressure in the range of about 3 kg/cm2 to about 16 kg/cm2 between aligned and articulated configurations of the elongated shaft.

Abstract: A electrosurgical generator and system includes a first radio frequency (RF) source and a second RF source, a first controller configured to output a first control signal to the first RF source to generate a first RF waveform, and a second controller configured to output a second control signal to the second RF source to generate a second RF waveform. The electrosurgical generator further includes a first output port and a second output port configured to provide the respective first RF waveform and the second RF waveform for treatment of tissue.

Abstract: An electrosurgical instrument includes an end effector assembly including first and second jaw members. At least one of the first or second jaw members is movable about a pivot relative to the other from a spaced-apart position to an approximated position to grasp tissue between first and second opposed surfaces of the first and second jaw members, respectively. The electrosurgical instrument further includes an interface configured to provide a feedback related to a size of tissue grasped by the first and second jaw members. At least one of the first or second jaw members includes a touch sensor configured to sense a touch span where the tissue touches the at least one of the first or second opposed surfaces. The end effector assembly further includes an angle sensor configured to sense an angle ? about the pivot between the first and second opposed surfaces.

Abstract: A surgical instrument apparatus for performing a surgical procedure within a body cavity of a patient is disclosed and includes an elongate manipulator having a distal end for receiving an end effector and including a plurality of control links extending through the manipulator operable to cause movement of the distal end in response to movement of the control links in a longitudinal direction. An actuator chassis is disposed at a proximal end of the manipulator and includes a plurality of actuators slidingly mounted within the actuator chassis for linear movement in the longitudinal direction. Each actuator is coupled to a control link and adjacently disposed about a curved periphery of the actuator chassis. An outwardly oriented portion couples a drive force to the actuator to cause movement of the control link.

Abstract: The present disclosure is directed to an expandable energy delivery assembly adapted to deliver electrical energy to tissue. The assembly includes an elongate device and an expandable portion. The expandable portion includes an inflatable element, a single helical electrode disposed on the inflatable element, and at least one irrigation aperture within the inflatable element. The inflatable element is secured to the elongate device and the single helical electrode makes between about 0.5 and about 1.5 revolutions around the inflatable element. The at least one irrigation aperture is adapted to allow fluid to flow from within the inflatable element to outside the inflatable element.

Abstract: A system for navigation of a luminal network including a catheter with a distal portion configured for articulation and a handle, a cradle configured to receive and support the handle, a first motor connected to the catheter, wherein the motor is operable to articulate the distal portion of the catheter, a second motor connected to the catheter, wherein the motor is operable to rotate the catheter about its longitudinal axis, and a user interface including at least one input, wherein signals generated by manipulation of the input are delivered to the first motor to articulate the catheter and to the second motor to rotate the catheter.

Abstract: A powered surgical device includes a power source and a motor coupled to the power source. The device may include a reload having a plurality of staples. The device may also include a transmission assembly movable by the motor. The device may also include a sensor configured to monitor operation of the transmission assembly and output sensor data. The device may also include a controller configured to: determine a position of the transmission assembly, and operate the motor based on the position of the transmission assembly to advance the transmission assembly to eject the plurality of staples from the reload. The controller is further configured to stop the motor once the plurality of staples is ejected from the reload for a preset period of time.

Abstract: Methods and systems for an airway access device including a sensor that measures linear distance that an endoluminal tool has traveled into a patient. In an example, the airway access device includes a body; a lumen defined by the body; and an optical sensor, coupled to the body. The optical sensor includes an optical emitter that emits light towards an endoluminal instrument that passes through the lumen; an optical receiver that detects light reflected from the endoluminal instrument; and a processing unit that calculates a linear distance that the endoluminal instrument has traveled.

Abstract: A powered surgical device (10) includes a safety trigger assembly (62) that is movable from a safe position to an intermediate position, and subsequently to a fire-ready position. The safety trigger assembly (62) prevents firing of the surgical device (10) unless the safety trigger assembly (62) is in the fire-ready position and includes at least one safety button (120, 134) that extends through an outer housing (18) of the surgical device (10) and is accessible to a clinician to move the safety trigger assembly (62) to the fire-ready position. The surgical device (10) includes the outer housing (18) that shields the at least one safety button (120, 134) when the safety trigger assembly (62) is in the safe position to prevent inadvertent movement of the safety trigger assembly (62) from the safe position to the fire-ready position.

Abstract: In some examples, a device includes at least three electrodes a first pair of electrodes and a second pair of electrodes. The device also includes circuitry configured to generate a first cardiac signal based on a first differential signal received across the first pair, generate a first brain signal based on the first differential signal received across the first pair, generate a second cardiac signal based on a second differential signal received across the second pair, and generate a second brain signal based on the second differential signal received across the second pair. The circuitry is also configured to output a composite cardiac signal based on the first cardiac signal and the second cardiac signal and to output a composite brain signal based on the first brain signal and the second brain signal.

Abstract: A tissue resecting instrument includes an end effector assembly having a proximal hub housing, a retainer cap extending proximally therefrom, an elongated outer shaft extending distally from the proximal hub housing, an inner cutting shaft rotatably disposed within the elongated outer shaft, and an inner core drive assembly that includes a proximal driver and a distal driver. The distal driver is coupled to the inner cutting shaft such that rotation of the distal driver rotates the inner cutting shaft relative to the elongated outer shaft. The proximal driver is slidable relative to the distal drive between a more-proximal position wherein the proximal driver is engaged with the retainer cap to rotationally fix the proximal driver, thereby rotationally locking the inner cutting shaft, and a more-distal position wherein the proximal driver is disengaged from the retainer cap permitting rotation thereof thereby permitting rotation of the inner cutting shaft.

Abstract: Polymeric ligation clips and a clip applier for applying a polymeric ligation clip to tissue are disclosed herein. More particularly, the polymeric ligation clips include separate first and second beams that can be coupled to each other and are movable from a reduced diameter open position in which minimal strain is placed on the ligation clip to a clamped position and to a clip applier for delivering such a ligation clip to a surgical site.

Abstract: A surgical stapler includes a stapler cartridge having a plurality of staples. The surgical stapler also includes a spectroscopy assembly disposed within the stapler cartridge and having a plurality of light sources and a plurality of photodetectors interspersed among the plurality of light sources. The surgical stapler further includes a controller coupled to the spectroscopy assembly. The controller is configured to activate the plurality of light sources to irradiate tissue contacting the stapler cartridge with a light. The controller is further configured to receive signals from the plurality of photodetectors based on reflected light detected by the plurality of photodetectors and to determine a degree of blood perfusion in the tissue based on the signals.

Abstract: Systems and methods for target movement modelling use sequences of position data from a first electromagnetic (EM) sensor disposed at a distal portion of a catheter disposed in a lung and from at least one second EM sensor disposed at the patient's chest in order to update target tissue position. The methods involve generating a breathing model of the lungs as a function of breathing phases based on the position data from the first and second EM sensors. The methods also involve receiving current position data from the at least one second EM sensor and estimating a current breathing phase based on the breathing model and the current position data. The methods also involve predicting displacement of the target based on the breathing model and the current breathing phase, and updating body coordinates near the target based on the displacement of the target.

Abstract: Devices, systems, and methods for treating vascular defects are disclosed herein. One aspect of the present technology, for example, is directed toward an occlusive device comprising a coil having a proximal end, a distal end, and a longitudinal axis extending therebetween. The coil may be formed of an elongated member wound about the longitudinal axis of the coil in a series of contiguous loops, wherein each of the loops extend around the longitudinal axis between a first end and a second end. The second end may be disposed at generally the same angular position as the first end about to the longitudinal axis of the coil. The elongated member may undulate along its longitudinal axis between the first and second ends of at least some of the individual loops.

Abstract: A surgical instrument includes an end effector configured to clamp tissue, a motor configured to actuate the end effector, and a controller in communication with the motor and configured to determine a stress and strain of the tissue, identify a tissue type of the tissue based on the determined stress and strain of the tissue, and set an operational parameter of the surgical instrument based on the identified tissue type of the tissue.

Abstract: A surgical instrument apparatus for performing a surgical procedure within a body cavity of a patient is disclosed and includes an elongate manipulator having a distal end for receiving an end effector and including a plurality of control links extending through the manipulator operable to cause movement of the distal end in response to movement of the control links in a longitudinal direction. An actuator chassis is disposed at a proximal end of the manipulator and includes a plurality of actuators slidingly mounted within the actuator chassis for linear movement in the longitudinal direction. Each actuator is coupled to a control link and adjacently disposed about a curved periphery of the actuator chassis. An outwardly oriented portion couples a drive force to the actuator to cause movement of the control link.

Abstract: An end effector assembly for an optical surgical instrument includes a jaw member and a plurality of optical elements positioned within a cavity of the jaw member. The jaw member has a tissue contacting surface. The jaw member has a proximal portion that is configured to secure a fiber optic cable thereto such that a distal end of the fiber optical cable extends into the cavity. The plurality of optical elements are arranged in a staircase-like manner that rises towards the tissue contacting surface as the plurality of optical elements extends distally within the cavity. The plurality of optical elements is configured to direct a beam of light exiting the fiber optic cable towards the tissue contacting surface.

Abstract: An authentication and information system for use in a surgical stapling system includes a microprocessor configured to demultiplex data from a plurality of components in the surgical system. The authentication and information system can include one wire chips and a coupling assembly with a communication connection.