A spatial orientation determining system includes an imaging device configured for obtaining an image of a surgical site, a surgical tool defining a central axis, a processor, and a memory. The surgical tool configured for operating at the surgical site and disposed thereon, a fiducial marker generated by a machine learning network. The fiducial marker includes a distinct pattern. The memory, includes instructions which when executed by the processor, cause the system to: access an image from the imaging device, the image including a portion of the fiducial marker; determine a spatial positioning of the surgical tool based on at least a visible portion of the fiducial marker and the distinct pattern; and determine, based on the spatial positioning, a positioning, an orientation, and/or a rotational angle of the surgical tool.

An electrosurgical assembly that includes one or more electrodes, and one or more AC conductors electrically connecting the one or more electrodes to a power source that is configured to generate and output an AC power signal to the one or more electrodes via the one or more AC conductors. A rectifier is electrically connected to the one or more AC conductors, and configured to convert the AC power signal into a DC power signal. A light source is electrically powered by the DC power signal.

A surgical system according to one or more embodiments may include: manipulators respectively supporting an endoscope and first and second surgical instruments; a remote control apparatus including a display device, a first operation handle for right hand to operate the first surgical instrument, and a second operation handle for left hand to operate the second surgical instrument; and a control apparatus. The control apparatus may display, on the display device, a graphical user interface, overlapped with the image captured by the endoscope, the graphical user interface including a first area that displays information on the first surgical instrument to be operated by the first operation handle, a second area that displays information on the second surgical instrument to be operated by the second operation handle, and a third area that displays information on the endoscope, which are arranged side by side in order from right to left.

A cryoadhesion apparatus includes a remote control assembly, a valve assembly, a needle catheter assembly, and a gas cylinder, the remote control assembly includes a sheath structure and a remote control, the sheath structure is provided with a catheter channel for the needle catheter assembly to pass through, two ends of the valve assembly are respectively connected to the needle catheter assembly and the gas bottle; the sheath structure is capable of squeezing the needle catheter assembly, when squeezing is maintained, the needle catheter assembly is capable of moving along with the sheath structure under a frictional force between an inner wall of the catheter channel and the needle catheter assembly; the remote control is configured to, when triggered, send a trigger signal to the valve assembly; the valve assembly is configured to transport, when receiving the trigger signal, a gas from the gas cylinder to the needle catheter assembly.

A surgical system comprises an articulated mechanical arm comprising arm segments connected serially by arm joints that flex and rotate, and first and second input-devices. The second input-device comprises a handle configurable to be oriented in any orientation in an x-y-z space, and the handle comprises segment members and joint members corresponding to the arm segments and arm joints of the arm. The arm joints can be actuatable by, and have the same degrees of freedom as, the handle joint member. A method of using the surgical system includes retroflecting the arm, transitioning control of the arm from the first input device to the second input device, and performing a surgical action, during which a displacement vector or a reorientation arc of the handle member through the x-y-z space is translated to a corresponding displacement vector or corresponding reorientation arc of the end effector in the same x-y-z space.

A surgical instrument end effector assembly includes a first jaw member defining an insulative tissue-contacting surface and first and second electrically-conductive tissue-contacting surfaces disposed on either side of the insulative tissue-contacting surface. A second jaw member includes an ultrasonic blade body positioned to oppose the insulative tissue-contacting surface of the first jaw member. The first jaw member is movable relative to the second jaw member between a spaced-apart position and an approximated position to apply a first grasping force to tissue disposed therebetween. A slider is movable, independent of the first jaw member, between a retracted position, wherein the slider is disposed proximally of the first and second jaw members, and an extended position, wherein the slider extends about the first jaw member and urges the first jaw member from the approximated position further towards the second jaw member to apply a second, greater grasping force to tissue.

A surgical instrument includes a housing having a shaft with an end effector assembly disposed at a distal end thereof that includes first and second jaw members configured to treat tissue upon electrical activation thereof. A first handle is movable relative to the housing and is configured to move the jaw members relative to one other to grasp tissue therebetween. A switch is disposed on the housing and in the actuation path of the first handle, the switch configured for activation by the first handle when the first handle is fully actuated relative to the housing. An over-ride is disposed in the housing and is movable between a first position configured to block full actuation of the first handle relative to the housing to prevent activation of the switch and a second position allowing full actuation of the first handle and activation of the switch.

A medical device includes a shaft including a distal end including a passive electrode that defines a central opening extending through the passive electrode, and an active electrode within the central opening. The active electrode is movable between at least an extended position in which the active electrode does not contact the passive electrode, and a retracted position in which the active electrode contacts the passive electrode.

A surgical instrument includes a housing having a shaft affixed thereto, a reciprocatable drive rod slideably disposed at least partially within the shaft, and a force applicator coupled to the drive rod. The shaft includes first and second jaw members attached to a distal end thereof, at least one of which movable relative to the other from a first position wherein the jaw members are disposed in spaced relation relative to one another to at least a second position closer to one another wherein the jaw members cooperate to grasp tissue therebetween. The force applicator and the drive rod mechanically communicate to impart movement to at least one of the jaw members. The bipolar forceps includes a handle assembly and a force-balance interface. The force-balance interface configured to translate a multiple of the user-applied force exerted on the handle assembly into the jaw members.

An electrode assembly for an electrosurgical instrument includes a housing configured to operably receive a distal end of an electrosurgical instrument shaft, the housing encapsulating an insulative core sandwiched between a pair of return electrodes. The insulative core includes a slot defined about a periphery thereof configured to partially receive an active electrode. The active electrode and the pair of return electrodes are adapted to connect to opposite polarities of an electrosurgical generator. A tensioning mechanism is configured to tension the active electrode about the insulative core during assembly.