Abstract: A forceps includes shaft members each having a jaw member disposed at a distal end thereof and configured move the jaw members between open and closed position. A knife deployment mechanism includes a trigger moveable along a longitudinal axis to deploy a knife between retracted and extended positions between the jaw members, the knife deployment mechanism including links that cooperate to actuate the knife. A knife kickout mechanism is pivotably coupled to one link and is configured to engage a ramp disposed in a shaft member upon approximation of the shaft members, the knife kickout is configured to cooperate with the links to urge the knife back to an at rest position upon the opening of the shaft members.

Abstract: An electrosurgical forceps includes a first shaft member including a first inner frame. A first jaw member extends distally from the first inner frame. A first outer housing is supported by the first inner frame. The first inner frame includes a first member stamped from sheet metal. A second shaft member includes a second inner frame. A second jaw member extends distally from the second inner frame. A second outer housing is supported by the second inner frame. The second inner frame includes a second member stamped from sheet metal and a rigid filler member disposed on the second member.

Abstract: An electrosurgical instrument includes a housing and an elongated shaft extending from the housing. An end effector is disposed at a distal portion of the elongated shaft. The end effector is configured to deliver electrosurgical energy to tissue. The end effector includes a first jaw member having a first electrode plate and a second jaw member having a second electrode plate. A movable handle is operably coupled to the housing. The movable handle is configured to move at least one of the first or second jaw members between an open position and a closed position. A first plate is disposed on the first jaw member. A second plate is disposed on the first plate. The second plate includes an opening defined therein. A bead is disposed on the first plate and is configured to protrude through the opening defined in the second plate.

Abstract: An electrosurgical forceps includes a first shaft member including a first inner frame. A first jaw member extends distally from the first inner frame. A first outer housing is supported by the first inner frame. The first inner frame includes a first member stamped from sheet metal. A second shaft member includes a second inner frame. A second jaw member extends distally from the second inner frame. A second outer housing is supported by the second inner frame. The second inner frame includes a second member stamped from sheet metal and a rigid filler member disposed on the second member.

Abstract: An electrosurgical pencil includes a handle housing. A light source is disposed within the handle housing and is configured to generate light for illuminating a surgical site. A light-transmitting nozzle formed of a resin is disposed in proximity to the light source and defines a fluid lumen in fluid communication with a fluid lumen of the handle housing for suctioning surgical smoke from a surgical site. The light-transmitting nozzle is configured to transmit light generated by the light source. An electrode extends from a distal end portion of the handle housing and through an aperture defined by the light source. The electrode is configured to deliver electrosurgical energy to tissue.

Abstract: A method of manufacturing a two-part sealing plate of a jaw member of an end effector assembly includes: fabricating a series of grooves through an upper plate of a two-part sealing plate of a jaw member; securing a lower plate to a non-tissue engaging side of the upper plate such that an upper surface of the lower plate defines a corresponding bottom surface of at least one of the series of grooves; and securing the seal plate to a support base of the jaw member.

Abstract: A forceps includes shaft members each having a jaw member disposed at a distal end thereof and configured move the jaw members between open and closed position. A knife deployment mechanism includes a trigger moveable along a longitudinal axis to deploy a knife between retracted and extended positions between the jaw members, the knife deployment mechanism including links that cooperate to actuate the knife. A knife kickout mechanism is pivotably coupled to one link and is configured to engage a ramp disposed in a shaft member upon approximation of the shaft members, the knife kickout is configured to cooperate with the links to urge the knife back to an at rest position upon the opening of the shaft members.

Abstract: A forceps includes shaft members each having a jaw member disposed at a distal end thereof and configured move the jaw members between open and closed position. A knife deployment mechanism includes a trigger moveable along a longitudinal axis to deploy a knife between retracted and extended positions between the jaw members, the knife deployment mechanism including links that cooperate to actuate the knife. A knife kickout mechanism is pivotably coupled to one link and is configured to engage a ramp disposed in a shaft member upon approximation of the shaft members, the knife kickout is configured to cooperate with the links to urge the knife back to an at rest position upon the opening of the shaft members.

Abstract: A forceps includes first and second shafts each having a jaw disposed at a distal end thereof configured to rotate about a pivot to move the jaws between open and closed positions, the shafts defining a longitudinal axis therebetween. A knife deployment mechanism including a rack and pinion mechanism or a series of links is disposed within the first shaft and includes a trigger moveable along the longitudinal axis to deploy a knife between the jaws. A knife lockout is configured to move upon approximation of the first and second shafts between an engaged position preventing deployment of the knife and a disengaged position allowing deployment of the knife. A knife kickout mechanism is disposed within the first shaft in opposition to the second shaft and is configured to force the knife forward upon movement of the first and second shafts from an approximated position to a more open position.

Abstract: An electrosurgical smoke evacuation pencil includes a handle housing, a suction conduit, an electrode, and a nozzle. The handle housing has a proximal end portion and a distal end portion and defines a lumen therethrough. The suction conduit is coupled to the handle housing and is configured to couple the electrosurgical pencil to a smoke evacuator. The electrode extends from the distal end portion of the handle housing and is configured to couple to a source of electrosurgical energy. The nozzle extends from the distal end portion of the handle housing and defines a lumen in fluid communication with the lumen of the handle housing. The nozzle is configured to transmit light from a light source through the nozzle and out of a distal end of the nozzle to form a light path illuminating therefrom.

Abstract: A forceps includes first and second shafts each having a jaw disposed at a distal end thereof configured to rotate about a pivot to move the jaws between open and closed positions, the shafts defining a longitudinal axis therebetween. A knife deployment mechanism including a rack and pinion mechanism or a series of links is disposed within the first shaft and includes a trigger moveable along the longitudinal axis to deploy a knife between the jaws. A knife lockout is configured to move upon approximation of the first and second shafts between an engaged position preventing deployment of the knife and a disengaged position allowing deployment of the knife. A knife kickout mechanism is disposed within the first shaft in opposition to the second shaft and is configured to force the knife forward upon movement of the first and second shafts from an approximated position to a more open position.

Abstract: A vessel sealing instrument includes a housing having a shaft extending from a distal end thereof including an end effector assembly having opposing first and second jaw members operably coupled thereto. The jaw members movable between open and closed positions for clamping tissue with a closure pressure. The jaw members are adapted to connect to a generator for providing energy thereto. An anti-backdrive mechanism is operably associated with the end effector assembly, the anti-backdrive mechanism including first and second mesh-like electrodes disposed in opposing relation on respective first and second jaw members and including openings defined therein.

Abstract: A method of assembling a jaw member of an electrosurgical forceps includes aligning in vertical registration an electrically conductive seal plate, an insulative spacer and a jaw support. The method further includes stacking the seal plate atop the insulative spacer and the jaw support such that a flange depending from the seal plate seats within a corresponding cavity defined within a flange depending from the insulative spacer which, in turn, seats within a cavity defined within the jaw support. The method further includes mechanically securing the seal plate, insulative spacer and jaw support to one another and securing a jaw housing to surround the jaw support, the insulative spacer and the seal plate.

Abstract: An electrosurgical forceps includes first and second shaft members pivotably coupled to one another such that pivoting of the first and second shaft members between spaced-apart and approximated positions pivots jaw members thereof between open and closed positions. A proximal end portion of the second shaft member may be pivoted against a resilient bias of a spring element to apply a predetermined clamping pressure on tissue and ultimately engage an activation switch to delivery electrosurgical energy to the clamped tissue.

Abstract: A knife limit for a surgical instrument includes a housing having a shaft extending therefrom configured to support an end effector at a distal end thereof, the end effector including first and second jaw members. One or both of the jaw members including a knife channel defined therein and extending therealong to a distal portion thereof. A knife assembly is disposed within the housing and cooperates with a trigger to translate a knife within the knife channel to the distal portion of the jaw member upon actuation thereof. A knife limit button is disposed within the housing and is configured to limit the distal translation of the knife within the knife channel upon selective actuation thereof. The knife limit button is movable between a first position allowing full translation of the knife within the knife channel and a second position limiting distal translation of the knife within the knife channel.

Abstract: An end effector of an electrosurgical forceps includes a first jaw member, a second jaw member, and a cap. The first jaw member has a pivot pin extending inwardly from an inner lateral side thereof. The second jaw member is pivotably coupled to the pivot pin. The cap couples the first and second jaw members to one another.

Abstract: An electrosurgical forceps includes first and second shaft members and first and second jaw members extending distally from the respective first and second shaft members. A pivot couples the first and second shaft members with one another such that the first and second shaft members are movable relative to one another between a spaced-apart position and an approximated position to move the first and second jaw members relative to one another between an open position and a closed position. The jaw members are configured to facilitate tissue treatment, tissue division, and blunt tissue dissection.

Abstract: A vessel sealing instrument includes a housing having a shaft extending from a distal end thereof, the distal end including an end effector assembly having a pair of opposing jaw members operably coupled thereto. One or both of the jaw members is moveable between open and closed positions for clamping tissue with a closure pressure. One or both of the jaw members connects to a generator that provides energy thereto in accordance with a sealing algorithm upon activation thereof. An anti-backdrive mechanism is coupled to the end effector assembly and includes a drive shaft coupled at one end to a solenoid and another end that engages one of the jaw members upon extension thereof to provide additional closure pressure between the jaw members. The drive shaft is extendible by the solenoid to extend the drive shaft in response to tissue expansion during sealing based on the sealing algorithm.

Abstract: A vessel sealing instrument includes a housing having a shaft extending from a distal end thereof including an end effector assembly having opposing first and second jaw members operably coupled thereto. One of the jaw members moveable between open and closed positions for clamping tissue with a closure pressure within the range of about 3 kg/cm2 to about 16 kg/cm2. The jaw members are adapted to connect to a generator for providing energy thereto in accordance with a sealing algorithm. An anti-backdrive mechanism is associated with the end effector assembly and includes: a drive shaft coupled to a controller and a screw on opposite ends, the screw configured to engage one of the jaw members upon extension thereof to provide additional closure pressure therebetween. The drive shaft is rotatable by the controller to extend the screw in response to tissue expansion during sealing based on the sealing algorithm.

Abstract: A vessel sealing instrument includes a housing having a shaft extending from a distal end thereof having an end effector assembly including a pair of opposing first and second jaw members operably coupled thereto. A drive assembly is disposed within the housing and is configured to move the jaw members upon actuation thereof between an open position and a closed position for clamping tissue with a closure pressure within the range of about 3 kg/cm2 to about 16 kg/cm2. An anti-backdrive assembly is operably disposed within the housing and includes a drive wedge. A solenoid controller is operably coupled to the drive wedge and is configured to selectively move the drive wedge into the drive assembly upon activation thereof to increase the closure pressure between the jaw members in response to tissue expansion during sealing.