Abstract: An ultrasonic surgical device including an elongate waveguide having a longitudinal axis and a distal end, and a blade extending away from the distal end of the waveguide, the blade including a curved portion that includes first and second opposed faces extending lengthwise along at least a portion of the length of the blade. Each of the first and second faces has a width that extends perpendicular to the longitudinal axis of the waveguide and a length that extends orthogonal to the width. A pair of hook portions are located on opposite sides of the blade. A method of fabricating an ultrasonic surgical device is also provided.

Abstract: A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The electrolytic solution includes a solvent, an electrolyte salt, and an aminoanthraquinone polymer compound. The aminoanthraquinone polymer compound includes a divalent maleic anhydride part and a divalent aminoanthraquinone derivative part.

Abstract: Ultrasonic surgical instrument having a handle assembly, a waveguide extending distally from handle assembly, an end-effector at distal end of the waveguide, and a clamp assembly removably mounted to the handle assembly. The clamp assembly includes a pivotally mounted clamp arm for pivotal movement with respect to the end effector, and is removably mounted to the handle assembly by axially aligned first and second bayonet mounts. Each of the bayonet mounts includes a female bayonet coupling having at least one bayonet slot configured to matingly receive a bayonet mounting pin of a male bayonet coupling, wherein the bayonet slots extend circumferentially about the longitudinal axis of the waveguide. A method of removing the clamp assembly of the ultrasonic surgical instrument is also provided, as well as an ultrasonic surgical shears instrument and a clamp assembly.

Abstract: Ultrasonic surgical instrument having a handle assembly, a waveguide extending distally from handle assembly, an end-effector at distal end of the waveguide, and a clamp assembly removably mounted to the handle assembly. The clamp assembly includes a pivotally mounted clamp arm for pivotal movement with respect to the end effector, and is removably mounted to the handle assembly by axially aligned first and second bayonet mounts. Each of the bayonet mounts includes a female bayonet coupling having at least one bayonet slot configured to matingly receive a bayonet mounting pin of a male bayonet coupling, wherein the bayonet slots extend circumferentially about the longitudinal axis of the waveguide. A method of removing the clamp assembly of the ultrasonic surgical instrument is also provided, as well as an ultrasonic surgical shears instrument and a clamp assembly.

Abstract: An ultrasonic surgical instrument having a handle assembly, a waveguide extending distally from the handle assembly, an end-effector located at a distal end of the waveguide, and a clamp assembly removably mounted to the handle assembly, the clamp assembly including a clamp arm pivotally mounted on the distal end of the clamp assembly for pivotal movement with respect to the end effector. The clamp assembly is removably mounted to the handle assembly by axially aligned first and second bayonet mounts, each of the bayonet mounts including a female bayonet coupling having at least one bayonet slot configured to matingly receive a bayonet mounting pin of a male bayonet coupling therein, wherein the bayonet slots extend circumferentially about a common longitudinal axis corresponding to the longitudinal axis of the waveguide. A method of removing the clamp assembly of the ultrasonic surgical instrument is also provided, as well as an ultrasonic surgical shears instrument and a clamp assembly are also provided.

Abstract: An ultrasonic surgical device including an elongate waveguide having a longitudinal axis and a distal end, and a blade extending away from the distal end of the waveguide, the blade including a curved portion that has at least five faces extending lengthwise along at least a portion of the length of the blade. Each of the faces has a width that extends perpendicular to the longitudinal axis of the waveguide and a length that extends orthogonal to the width. Each of the faces is flat across its width and is either flat along its entire length or includes one or more curved segments along its length, with each of the curved segments of an individual face being curved in the same direction. A method of fabricating an ultrasonic surgical device is also provided.

Abstract: A modular signal interface system for providing electrical communication with a surgical instrument when the surgical instrument is inserted into a cannula of a trocar. The system includes a signal interface adapter and an instrument connector. The signal interface adapter is provided on, or adapted to be mounted on a trocar, and includes central aperture extending therethrough and a proximal face having a plurality of conductive contacts. The instrument connector is provided on or adapted to be mounted on a shaft of a surgical instrument, and includes a central aperture extending therethrough and a distal face having a plurality of conductive contacts. The signal interface adapter and the instrument connector are adapted for mating engagement such that, when matingly engaged, their central apertures are axially aligned and predetermined ones of the plurality of contacts of the signal interface adapter are in conductive contact with predetermined ones of the plurality of contacts of the instrument connector.

Abstract: It is disclosed an actuation mechanism and ultrasonic surgical instrument. The ultrasonic surgical instrument includes an elongated body, a clamping assembly and an actuation mechanism configured to actuate the clamping assembly. The actuation mechanism includes: a handle portion; a first trigger and a second trigger pivotally arranged on the handle portion, respectively; and a driving member configured to actuate the clamping assembly, where the clamping assembly is arranged on a distal portion of the elongated body. The first trigger is engaged with the driving member through a first link, and the second trigger is engaged with the driving member through the first link and a second link. The first trigger is movable independently with respect to the second trigger during a portion of movement of the first trigger.

Abstract: An ultrasonic surgical device including an elongate waveguide having a longitudinal axis and a distal end, and a blade extending away from the distal end of the waveguide, the blade including a curved portion that has at least five faces extending lengthwise along at least a portion of the length of the blade. Each of the faces has a width that extends perpendicular to the longitudinal axis of the waveguide and a length that extends orthogonal to the width. Each of the faces is flat across its width and is either flat along its entire length or includes one or more curved segments along its length, with each of the curved segments of an individual face being curved in the same direction. A method of fabricating an ultrasonic surgical device is also provided.

Abstract: A modular signal interface system for providing electrical communication with a surgical instrument when the surgical instrument is inserted into a cannula of a trocar. The system includes a signal interface adapter and an instrument connector. The signal interface adapter is provided on, or adapted to be mounted on a trocar, and includes central aperture extending therethrough and a proximal face having a plurality of conductive contacts. The instrument connector is provided on or adapted to be mounted on a shaft of a surgical instrument, and includes a central aperture extending therethrough and a distal face having a plurality of conductive contacts. The signal interface adapter and the instrument connector are adapted for mating engagement such that, when matingly engaged, their central apertures are axially aligned and predetermined ones of the plurality of contacts of the signal interface adapter are in conductive contact with predetermined ones of the plurality of contacts of the instrument connector.

Abstract: It is disclosed an actuation mechanism for performing an action, where the actuation mechanism comprises: a first movable trigger assembly having a first trigger; a second movable trigger assembly have a second trigger, where the first trigger is movable independently with respect to the second trigger during a portion of movement of the first trigger and/or the second trigger; and a driving member in engagement with the first trigger assembly and the second trigger assembly, respectively, wherein, the first trigger assembly and the second trigger assembly are applied different mechanical advantages.

Abstract: An ultrasonic surgical device including an elongate waveguide having a longitudinal axis and a distal end, and a blade extending away from the distal end of the waveguide, the blade including a curved portion that includes first and second opposed faces extending lengthwise along at least a portion of the length of the blade. Each of the first and second faces has a width that extends perpendicular to the longitudinal axis of the waveguide and a length that extends orthogonal to the width. A pair of hook portions are located on opposite sides of the blade. A method of fabricating an ultrasonic surgical device is also provided.

Abstract: Ultrasonic surgical instrument having a handle assembly, a waveguide extending distally from handle assembly, an end-effector at distal end of the waveguide, and a clamp assembly removably mounted to the handle assembly. The clamp assembly includes a pivotally mounted clamp arm for pivotal movement with respect to the end effector, and is removably mounted to the handle assembly by axially aligned first and second bayonet mounts. Each of the bayonet mounts includes a female bayonet coupling having at least one bayonet slot configured to matingly receive a bayonet mounting pin of a male bayonet coupling, wherein the bayonet slots extend circumferentially about the longitudinal axis of the waveguide. A method of removing the clamp assembly of the ultrasonic surgical instrument is also provided, as well as an ultrasonic surgical shears instrument and a clamp assembly.

Abstract: An engagement detection system (“EDS”) adapted to be positioned between, and in electrical communication with, an electrosurgical generator and an electrosurgical instrument. The EDS adapted to electronically detect that the electrosurgical instrument is inserted into a trocar cannula, and thereafter deliver electrosurgical energy to the instrument. A method of operating an endoscopic electrosurgical instrument inserted into a trocar cannula, as well as a switch assembly are also provided.

Abstract: A surgical instrument and a drive mechanism, the drive mechanism includes a motor, a planetary gear train, and a bidirectional ratchet mechanism; the input sun gear of the planetary gear train engages the output shaft of the motor; an output carrier of the planetary gear train engages an executing mechanism of the surgical instrument through a transmission mechanism; the bidirectional ratchet mechanism includes a ratchet, a bidirectional pawl assembly, and a selector; the ratchet is in rigid connection with an annular gear of the planetary gear train; the bidirectional pawl assembly includes a bidirectional pawl; the selector selectively drives a first end or a second end of the bidirectional pawl to bias the ratchet, so as to prevent corresponding rotation of the ratchet when the motor drives the planetary gear train, and allow corresponding rotation of the ratchet when the transmission mechanism drives the planetary gear train.

Abstract: An ultrasonic surgical device including an elongate waveguide having a longitudinal axis an a distal end, and a blade extending away from the distal end of the waveguide, the blade including a curved portion that includes first and second opposed faces extending lengthwise along at least a portion of the length of the blade. Each of the first and second faces has a width that extends perpendicular to the longitudinal axis of the waveguide and a length that extends orthogonal to the width. A pair of hook portions are located on opposite sides of the blade. A method of fabricating an ultrasonic surgical device is also provided.

Abstract: A surgical instrument and a drive mechanism, the drive mechanism includes a motor, a planetary gear train, and a bidirectional ratchet mechanism; the input sun gear of the planetary gear train engages the output shaft of the motor; an output carrier of the planetary gear train engages an executing mechanism of the surgical instrument through a transmission mechanism; the bidirectional ratchet mechanism includes a ratchet, a bidirectional pawl assembly, and a selector; the ratchet is in rigid connection with an annular gear of the planetary gear train; the bidirectional pawl assembly includes a bidirectional pawl; the selector selectively drives a first end or a second end of the bidirectional pawl to bias the ratchet, so as to prevent corresponding rotation of the ratchet when the motor drives the planetary gear train, and allow corresponding rotation of the ratchet when the transmission mechanism drives the planetary gear train.

Abstract: An ultrasonic surgical instrument having a handle assembly, a waveguide extending distally from the handle assembly, an end-effector located at a distal end of the waveguide, and a clamp assembly removably mounted to the handle assembly, the clamp assembly including a clamp arm pivotally mounted on the distal end of the clamp assembly for pivotal movement with respect to the end effector. The clamp assembly is removably mounted to the handle assembly by axially aligned first and second bayonet mounts, each of the bayonet mounts including a female bayonet coupling having at least one bayonet slot configured to matingly receive a bayonet mounting pin of a male bayonet coupling therein, wherein the bayonet slots extend circumferentially about a common longitudinal axis corresponding to the longitudinal axis of the waveguide. A method of removing the clamp assembly of the ultrasonic surgical instrument is also provided, as well as an ultrasonic surgical shears instrument and a clamp assembly are also provided.

Abstract: A surgical instrument and a drive mechanism, the drive mechanism includes a motor, a planetary gear train, and a bidirectional ratchet mechanism; the input sun gear of the planetary gear train engages the output shaft of the motor; an output carrier of the planetary gear train engages an executing mechanism of the surgical instrument through a transmission mechanism; the bidirectional ratchet mechanism includes a ratchet, a bidirectional pawl assembly, and a stop; the ratchet is in rigid connection with an annular gear of the planetary gear train; the bidirectional pawl assembly includes a bidirectional pawl; the stop selectively drives a first end or a second end of the bidirectional pawl to lock the ratchet, so as to lock corresponding rotation of the ratchet when the motor drives the planetary gear train, and unlock corresponding rotation of the ratchet when the transmission mechanism drives the planetary gear train.

Abstract: An ultrasonic surgical device including an elongate waveguide having a longitudinal axis and a distal end, and a blade extending away from the distal end of the waveguide, the blade including a curved portion that has at least five faces extending lengthwise along at least a portion of the length of the blade. Each of the faces has a width that extends perpendicular to the longitudinal axis of the waveguide and a length that extends orthogonal to the width. Each of the faces is flat across its width and is either flat along its entire length or includes one or more curved segments along its length, with each of the curved segments of an individual face being curved in the same direction. A method of fabricating an ultrasonic surgical device is also provided.