Abstract: A surgical device includes a pair of jaws for manipulating tissue disposed therebetween; a housing and a hemostat style gripping mechanism; an elongated shaft positioned between the housing and the pair of jaws and defining a longitudinal axis; and a pull tube at least partially disposed within the elongated shaft. The hemostat style gripping mechanism comprises a linkage system configured to move the jaws between an open position and an approximated position, the linkage system comprises a first shank having distal end rotatably coupled to the housing at a first fixed pivot point and a proximal end coupled to a first finger grip, a second shank having a distal end rotatably coupled to the housing at a second fixed pivot point and a proximal end coupled to a second finger grip, and a slider link operatively coupled to the first shank and the second shank.

Abstract: A surgical system includes a generator that delivers a first RF power signal during a seal cycle, and a second RF power signal during a cut cycle. A surgical device is electrically coupled to the generator and has first and second jaws having respective opposing conductive seal surface electrodes configured for bi-polar sealing of spaced apart first and second portions of tissue compressed between the jaws during a seal cycle. The device further includes a cut electrode disposed within the first jaw, the cut electrode having an elongate conductive edge surface that presses against a third portion of the tissue located between the first and second portions when the jaws are compressing the tissue, wherein the cut electrode acts as a monopolar electrode that severs the third portion of the tissue during a cut cycle performed after the seal cycle.

Abstract: An electrosurgical instrument has a movable tissue cutting mechanism, a shaft housing at least a portion of the movable tissue cutting mechanism, and a pair of opposing jaws rotatable relative to the shaft. Each jaw has an electrically conductive core member, a slot for receiving the cutting mechanism, and a sealing surface. A pin is coupled to the shaft and the jaws. The pin passes through the jaws and the cutting mechanism. A first link is rotatably coupled to the first jaw and a rod. The rod is interior of and translatable relative to the shaft. Each jaw has a coating made of a substantially non-conductive material covering a portion of the conductive core member but exposing the seal surface, whereby the coating limits an energy path from the respective conductive medium to the respective seal surface.

Abstract: A cartridge assembly for a surgical stapler has a first cartridge portion, a second cartridge portion, and a housing. The housing is shaped and configured to provide a fulcrum about which an anvil may pivot. Each of the first and second cartridge portions has an upper surface for engaging tissue, and a slot configured to house a staple. A proximal portion of each of the first and second cartridge portions has a guide portion having at least one of a channel or a protrusion for guiding at least a portion of an i-beam. The second cartridge portion is removably coupled to the first cartridge portion to form a channel between the first and second cartridge portion. Each of the first and second cartridge portions has a recess proximal of the fulcrum, the recess shaped and configured to receive a proximal portion of the anvil.

Abstract: An endoscopic surgical instrument has a distal end configured to perform an action on tissue; a proximal end; a beam; a drive rod; and at least one rail supporting at least one bearing, the at least one bearing movable relative to the at least one rail. The distal end of the instrument is configured to receive at least a portion of the beam, the beam movable longitudinally in response to an action on the drive rod. The at least one rail is shaped and configured to contact the beam tangentially to prevent the beam from buckling as the beam is moved longitudinally.

Abstract: A cartridge assembly for a surgical stapler has a first cartridge portion, a second cartridge portion, and a housing. The housing is shaped and configured to provide a fulcrum about which an anvil may pivot. Each of the first and second cartridge portions has an upper surface for engaging tissue, and a slot configured to house a staple. A proximal portion of each of the first and second cartridge portions has a guide portion having at least one of a channel or a protrusion for guiding at least a portion of an i-beam. The second cartridge portion is removably coupled to the first cartridge portion to form a channel between the first and second cartridge portion. Each of the first and second cartridge portions has a recess proximal of the fulcrum, the recess shaped and configured to receive a proximal portion of the anvil.

Abstract: An endoscopic surgical instrument has a distal end configured to perform an action on tissue; a proximal end; a beam; a drive rod; and at least one rail supporting at least one bearing, the at least one bearing movable relative to the at least one rail. The distal end of the instrument is configured to receive at least a portion of the beam, the beam movable longitudinally in response to an action on the drive rod. The at least one rail is shaped and configured to contact the beam tangentially to prevent the beam from buckling as the beam is moved longitudinally.

Abstract: A device for use in laparoscopic surgery is provided. The device has a plurality of telescoping sections positioned in and movable relative to a protective sheath between an extended configuration, wherein a body section of a first one of the telescoping sections is spaced apart from a body section of a second one of the telescoping sections, and a retracted configuration wherein the body section of the first one of the telescoping sections is in contact with the body section of the second one of the telescoping sections. A tissue interaction portion is configured to interact with tissue in response to the manipulation of a device actuator.

Abstract: A device for use in laparoscopic surgery is provided. The device has a plurality of telescoping sections positioned in and movable relative to a protective sheath between an extended configuration, wherein a body section of a first one of the telescoping sections is spaced apart from a body section of a second one of the telescoping sections, and a retracted configuration wherein the body section of the first one of the telescoping sections is in contact with the body section of the second one of the telescoping sections. A tissue interaction portion is configured to interact with tissue in response to the manipulation of a device actuator.

Abstract: A surgical stapler, a cartridge for a surgical stapler, a cutting mechanism for a surgical stapler, and a method of applying surgical staples in a patient are disclosed herein. The stapler may have an anvil movably coupled to a support jaw between a clamped configuration and a closed configuration. The cartridge may be configured to fit within an envelope diameter and to removably house a plurality of B-form staples, at least one of the plurality of B-form staples having a base length and a leg length, the leg length at least 53% of the envelope diameter. The cartridge may have slots shaped to house at least a second one of the plurality of staples at an angle oblique to the first one of the plurality of staples.

Abstract: A surgical stapler, a cartridge for a surgical stapler, a cutting mechanism for a surgical stapler, and a method of applying surgical staples in a patient are disclosed herein. The stapler may have an anvil movably coupled to a support jaw between a clamped configuration and a closed configuration. The cartridge may be configured to fit within an envelope diameter and to removably house a plurality of B-form staples, at least one of the plurality of B-form staples having a base length and a leg length, the leg length at least 53% of the envelope diameter. The cartridge may have slots shaped to house at least a second one of the plurality of staples at an angle oblique to the first one of the plurality of staples.

Abstract: An electrosurgical instrument has a power supply operatively coupled to an end effector. The end effector has a pair of jaws for effectuating an action on tissue positioned therebetween. The power supply is configured to input a first signal and a second signal to a buck-boost converter. The buck-boost converter is configured to transmit an output to an H-bridge circuit. The H-bridge circuit is configured to pass a signal to a resonant LC transformer circuit. The power supply is configured to transmit a power signal. The pair of jaws are operatively coupled to the power supply to receive the power signal, the power having no more than 80 Volts RMS, and less than 2 Amps RMS. The power is configured to seal the tissue positioned between the pair of jaws in 3 seconds or less.

Abstract: A surgical stapler and related components and methods are disclosed. The stapler has an anvil having a staple pocket, and a cartridge. The cartridge supports a staple pusher and a B-form staple, the B-form staple having a backspan, a proximal leg, and a distal leg, the backspan having a proximal portion coupled to the proximal leg, a distal portion coupled to the distal leg, and a central portion therebetween. The surgical stapler is configured to cold work at least a portion of the backspan during a deployment of the surgical staple.

Abstract: An electrosurgical instrument has a power supply operatively coupled to an end effector. The end effector has a pair of jaws for effectuating an action on tissue positioned therebetween. The power supply is configured to input a first signal and a second signal to a buck-boost converter. The buck-boost converter is configured to transmit an output to an H-bridge circuit. The H-bridge circuit is configured to pass a signal to a resonant LC transformer circuit. The power supply is configured to transmit a power signal. The pair of jaws are operatively coupled to the power supply to receive the power signal, the power having no more than 80 Volts RMS, and less than 2 Amps RMS. The power is configured to seal the tissue positioned between the pair of jaws in 3 seconds or less.

Abstract: A surgical stapler, cartridge assembly, and related methods are disclosed. A cartridge assembly for a surgical stapler has a first cartridge portion; and a second cartridge portion; wherein each of the first and second cartridge portions has an upper surface for engaging tissue, and a slot to house a staple. A proximal portion of each of the first and second cartridge portions has a guide portion having at least one of a channel or a protrusion for guiding at least a portion of an i-beam. The second cartridge portion is removably couplable to the first cartridge portion to form a channel.

Abstract: A clamping mechanism for a surgical instrument and related methods are disclosed. Upper and lower elongated members are configured to engage each other at a first interlock and a second interlock, the first interlock distal of the second interlock. The clamping mechanism is movable between a first configuration, a second configuration, and a third configuration. In the first configuration, the elongated members are approximated towards each other and the first and second interlocks are not engaged. In the second configuration, the distal portion of the elongated members are moved away from each other, the first interlock is engaged, and the second interlock is not engaged. In the third configuration, the distal portions of the elongated members are moved away from each other relatively, the proximal portions of the elongated members are moved away from each other relatively, the first interlock is engaged, and the second interlock is engaged.