ELECTROSURGICAL INSTRUMENT

An electrosurgical forceps is provided with a shaft that extends from a housing of the electrosurgical forceps. An end effector assembly includes a pair of first and second jaw members pivotably coupled to one another via a pivot pin. One or both of the first and second jaw members may be movable from an open position for positioning tissue therebetween to a clamping position for grasping tissue. A detent is operably disposed proximal the pivot pin and extends radially outward from a proximal flange of one of the jaw members. The detent is configured to releasably engage a corresponding slot disposed on a proximal flange of the other jaw member. The detent and slot are configured to control a gap distance between the first and second jaw members when the first and second jaw members are in the clamping position. 14-. (canceled)5. An electrosurgical forceps , comprising:a housing having a shaft extending therefrom and defining a longitudinal axis therethrough; andan end effector assembly operably coupled to a distal end of the shaft and including a pair of first and second jaw members pivotably coupled to one another via a pivot pin, the first and second jaw members movable relative to one another from an open position for positioning tissue therebetween to a clamping position for grasping tissue,wherein each of the first and second jaw members includes a respective cam slot configured to house a cam pin therein, the cam pin movable within the cam slots to move each of the first and second jaw members from the open position to clamping position, a proximal most position of each of the cam slots includes a back wall whereupon contact between the cam pin and the back wall of the respective cam slots corresponds to a desired gap distance between the first and second jaw members when the first and second jaw members are in the clamping position.6. An electrosurgical forceps according to claim 5 , wherein the cam slots are angled with respect to one another.7. An ...

Vessel sealing instrument with reduced thermal spread and method of manufacture therefor

An electrosurgical vessel sealing instrument having a first and a second opposing jaw member at a distal end thereof, wherein each jaw member includes a jaw housing, a seal plate having a tissue contacting surface and a side wall, and an insulating region disposed on the side wall of the seal plate. The instrument includes the ability to move the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue. The insulating region enables precision overmolding of the jaw housing to the seal plate, while advantageously reducing thermal spread and edge cutting during vessel sealing procedures.

Surgical instrument shafts and methods of manufacturing shafts for surgical instruments

A method of manufacturing a shaft of a surgical instrument including forming a proximal segment of the shaft to include one or more features for operably engaging the shaft to a first component of the surgical instrument, forming a distal segment of the shaft to include one or more features for operably engaging the shaft to a second component of the surgical instrument and forming an intermediate segment of the shaft. The proximal segment is welded to a proximal end of the intermediate segment; and the distal segment is welded to a distal end of the intermediate segment. The proximal and distal segments are welded to the intermediate segment such that the one or more features thereof are aligned in a pre-determined orientation relative to one another.

Surgical tissue occluding device

A surgical instrument includes an end effector assembly having first and second jaw members moveable relative to one another between a spaced-apart position and an approximated position for grasping tissue therebetween. In the approximated position, the jaw members cooperate to define a cavity that is configured to house tissue grasped between the jaw members. An injectable material configured for injection into the cavity defined by the jaw members is also provided. The injectable material is configured to substantially surround tissue housed within the cavity. The injectable material is transitionable from a first state, facilitating injection of the injectable material into the cavity, to a second state, wherein the injectable material forms about tissue housed within the cavity to occlude tissue.

Electrosurgical instrument

An electrosurgical forceps is provided with a shaft that extends from a housing of the electrosurgical forceps. An end effector assembly includes a pair of first and second jaw members pivotably coupled to one another via a pivot pin. One or both of the first and second jaw members may be movable from an open position for positioning tissue therebetween to a clamping position for grasping tissue. A detent is operably disposed proximal the pivot pin and extends radially outward from a proximal flange of one of the jaw members. The detent is configured to releasably engage a corresponding slot disposed on a proximal flange of the other jaw member. The detent and slot are configured to control a gap distance between the first and second jaw members when the first and second jaw members are in the clamping position.

Method of constructing a jaw member for an end effector assembly

An end effector assembly for use with an electrosurgical instrument is provided. The end effector assembly has a pair of opposing jaw members. One or more of the jaw members includes a support base, an electrical jaw lead, and a sealing plate coupled to the electrical jaw lead. The sealing plate has a stainless steel layer and one or more piezo electric sensors. The jaw member also includes an insulative plate disposed between the support base and the sealing plate.

Vessel sealing instrument with reduced thermal spread and method of manufacture therefor

An electrosurgical vessel sealing instrument having a first and a second opposing jaw member at a distal end thereof, wherein each jaw member includes a jaw housing, a seal plate having a tissue contacting surface and a side wall, and an insulating region disposed on the side wall of the seal plate. The instrument includes the ability to move the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue. The insulating region enables precision overmolding of the jaw housing to the seal plate, while advantageously reducing thermal spread and edge cutting during vessel sealing procedures.

System for manufacturing electrosurgical seal plates

A system for the manufacture of an end effector assembly which is configured for use with an electrosurgical instrument configured for performing an electrosurgical procedure is provided. The system includes a photolithography module that is configured to etch one or more pockets on a seal surface of the seal plate. A vacuum module is configured to raise, transfer and lower a spacer from a location remote from the pocket(s) on the seal plate to the pocket on the seal plate(s). An adhesive dispensing module is configured to dispense an adhesive into the pocket on the seal plate. An optical module is configured to monitor a volume of the adhesive dispensed within the pocket and monitor placement of the spacer within the pocket.

System for Manufacturing Electrosurgical Seal Plates

A system for the manufacture of an end effector assembly which is configured for use with an electrosurgical instrument configured for performing an electrosurgical procedure is provided. The system includes a photolithography module that is configured to etch one or more pockets on a seal surface of the seal plate. A vacuum module is configured to raise, transfer and lower a spacer from a location remote from the pocket(s) on the seal plate to the pocket on the seal plate(s). An adhesive dispensing module is configured to dispense an adhesive into the pocket on the seal plate. An optical module is configured to monitor a volume of the adhesive dispensed within the pocket and monitor placement of the spacer within the pocket. 1. A system for manufacturing an end effector assembly configured for use with an electrosurgical instrument , the system comprising:a photolithography module configured to etch at least one pocket on at least one seal plate of the end effector assembly;a vacuum module configured to raise, transfer and lower a spacer from a location remote from the at least one pocket on the seal plate to each of the at least one pocket on the seal plate;an adhesive dispensing module configured to dispense an adhesive into the at least one pocket on the seal plate; andan optical module configured to monitor a volume of the adhesive dispensed within the at least one pocket and monitor placement of the spacer within the at least one pocket.2. The system according to claim 1 , further including a module to cure the adhesive after the spacer has been positioned within each at least one pocket.3. The system according to claim 1 , wherein a retention feature is etched on the at least one seal plate and is configured to secure the at least one seal plate to at least one of a pair of jaw members of the end effector assembly.4. The system according to claim 1 , wherein a knife slot is etched into the at least one seal plate and is configured to receive a knife blade of ...

Electrosurgical Instrument

An electrosurgical forceps is provided with a shaft that extends from a housing of the electrosurgical forceps. An end effector assembly includes a pair of first and second jaw members pivotably coupled to one another via a pivot pin. One or both of the first and second jaw members may be movable from an open position for positioning tissue therebetween to a clamping position for grasping tissue. A detent is operably disposed proximal the pivot pin and extends radially outward from a proximal flange of one of the jaw members. The detent is configured to releasably engage a corresponding slot disposed on a proximal flange of the other jaw member. The detent and slot are configured to control a gap distance between the first and second jaw members when the first and second jaw members are in the clamping position. 1. An electrosurgical forceps , comprising:an end effector assembly including a pair of first and second jaw members pivotably coupled to one another via a pivot pin, at least one of the first and second jaw members movable from an open position for positioning tissue therebetween to a clamping position for grasping tissue; anda detent operably disposed proximal the pivot pin and extending radially outward from a proximal flange of one of the jaw members, the detent configured to releasably engage a corresponding slot disposed on a proximal flange of the other jaw member, the detent and slot configured to control a gap distance between the first and second jaw members when the first and second jaw members are in the clamping position.2. An electrosurgical forceps according to claim 1 , wherein the slot includes a generally arcuate configuration that is configured to accommodate pivotable movement of the movable jaw member.3. An electrosurgical forceps according to claim 1 , wherein the slot includes an opening configured to receive the detent and is defined by two sidewalls joined by a distal wall.4. An electrosurgical forceps according to claim 3 , wherein ...

Surgical Tissue Occluding Device

A surgical instrument includes an end effector assembly having first and second jaw members moveable relative to one another between a spaced-apart position and an approximated position for grasping tissue therebetween. In the approximated position, the jaw members cooperate to define a cavity that is configured to house tissue grasped between the jaw members. An injectable material configured for injection into the cavity defined by the jaw members is also provided. The injectable material is configured to substantially surround tissue housed within the cavity. The injectable material is transitionable from a first state, facilitating injection of the injectable material into the cavity, to a second state, wherein the injectable material forms about tissue housed within the cavity to occlude tissue. 1. A surgical instrument , comprising:an end effector assembly including first and second jaw members moveable relative to one another between a spaced-apart position and an approximated position for grasping tissue therebetween, wherein, in the approximated position, the jaw members cooperate to define a cavity that is configured to house tissue grasped between the jaw members; andan injectable material configured for injection into the cavity defined by the jaw members to substantially surround tissue housed therein, the injectable material transitionable from a first state, facilitating injection of the injectable material into the cavity, to a second state, wherein the injectable material forms about tissue housed within the cavity to occlude tissue.2. The surgical instrument according to claim 1 , further comprising a replaceable material reservoir cartridge configured to retain the injectable material therein.3. The surgical instrument according to claim 1 , wherein the injectable material is transitionable from a fluid state claim 1 , facilitating injection of the injectable material into the cavity claim 1 , to a solid state claim 1 , wherein the injectable ...

Surgical Instrument Shafts and Methods of Manufacturing Shafts for Surgical Instruments

A method of manufacturing a shaft of a surgical instrument including forming a proximal segment of the shaft to include one or more features for operably engaging the shaft to a first component of the surgical instrument, forming a distal segment of the shaft to include one or more features for operably engaging the shaft to a second component of the surgical instrument and forming an intermediate segment of the shaft. The proximal segment is welded to a proximal end of the intermediate segment; and the distal segment is welded to a distal end of the intermediate segment. The proximal and distal segments are welded to the intermediate segment such that the one or more features thereof are aligned in a pre-determined orientation relative to one another. 1. A method of manufacturing a shaft of a surgical instrument , comprising:forming a proximal segment of the shaft to include at least one feature for operably engaging the shaft to a first component of the surgical instrument;forming a distal segment of the shaft to include at least one feature for operably engaging the shaft to a second component of the surgical instrument;forming an intermediate segment of the shaft;welding the proximal segment of the shaft to a proximal end of the intermediate segment; andwelding the distal segment of the shaft to a distal end of the intermediate segment, wherein the welding of at least one of the proximal segment and the distal segment to the intermediate segment is configured such that the at least one feature of the proximal and distal segments are aligned in a pre-determined orientation relative to one another.2. The method according to claim 1 , wherein at least one of the proximal segment and the distal segment is welded to the intermediate segment via laser welding.3. The method according to claim 1 , wherein at least one of the proximal segment and the distal segment is welded to the intermediate segment via spin-welding.4. The method according to claim 1 , wherein the ...

Multi-Circuit Seal Plates

An end effector assembly adapted to couple to an electrosurgical instrument, the end effector assembly including a pair of opposing jaw members pivotably attached about a pivot member and moveable from a first spaced position to a second grasping position. Each jaw member includes a jaw housing and a seal plate formed on an inner surface of the jaw member including at least two seal plate segments extending along a substantial portion of the length of the jaw members. An insulating member is positioned between adjacent seal plate segments and configured to provide electrical isolation between adjacent seal plate segments. Each sealing plate segment is adapted to selectively connect to an electrosurgical energy source and form part of an electrosurgical energy delivery circuit. 1. An end effector assembly comprising: a jaw housing;', 'a seal plate formed on an inner surface of the jaw member including at least two seal plate segments extending along a substantial portion of the length of the jaw members; and', 'an insulating member positioned between adjacent seal plate segments and configured to provide electrical isolation between adjacent seal plate segments,, 'a pair of opposing jaw members pivotably attached and moveable from a first spaced position to a second grasping position, each jaw member includingwherein each sealing plate segment is adapted to selectively connect to an electrosurgical energy source and form part of an electrosurgical energy delivery circuit.2. An end effector assembly according to claim 1 , wherein each jaw member further includes:a seal plate mount configured to operably couple the seal plate and the jaw housing and further configured to electrically couple each of the two or more seal plate segments to an electrosurgical energy source.3. An end effector assembly according to claim 2 , wherein the seal plate mount includes at least one switch circuit board disposed on and operably coupled atop the seal plate.4. An end effector assembly ...

Surgical Instrument With Resilient Driving Member and Related Methods of Use

A forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and includes a pair of first and second jaw members. One or both of the first and second jaw members is movable relative to the other jaw member from a clamping position to an open position. A resilient member operably couples to at least one of the first and second jaw members. The resilient member is configured to bias the first and second jaw members in the clamping position and provide a closure force on tissue disposed therebetween. 1. An endoscopic forceps , comprising:an elongated shaft having a proximal end and a distal end;an end effector assembly disposed at a distal end of the shaft, the end effector assembly including a pair of first and second jaw members, at least one of the first and second jaw members movable relative to the other from a clamping position wherein the first and second jaw members cooperate to grasp tissue therebetween to an open position wherein the first and second jaw members are disposed in spaced relation relative to one another;a cam member configured to translate along a longitudinal axis defined through the shaft;a drive rod configured to translate along the longitudinal axis of the shaft;a resilient member disposed proximate to at least one of the jaw members and configured to operably couple a distal end of the of the drive rod to a proximal end of the cam member, wherein at least one of the first and second jaw members includes at least one cam slot defined therein is configured to receive the cam member such that upon movement thereof rotates the first and second jaw members from the clamping position to the open position.2. An endoscopic forceps according to claim 1 , wherein the type of resilient member is selected from the group consisting of a compression spring and a leaf spring.3. An endoscopic forceps according to claim 1 , further comprising a housing having a handle that extends ...

Vessel Sealing Instrument with Reduced Thermal Spread and Method of Manufacture Therefor

An electrosurgical vessel sealing instrument having a first and a second opposing jaw member at a distal end thereof, wherein each jaw member includes a jaw housing, a seal plate having a tissue contacting surface and a side wall, and an insulating region disposed on the side wall of the seal plate. The instrument includes the ability to move the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue. The insulating region enables precision overmolding of the jaw housing to the seal plate, while advantageously reducing thermal spread and edge cutting during vessel sealing procedures. 1. An electrosurgical instrument , comprising:a first jaw member and a second opposing jaw member at a distal end of the electrosurgical instrument, at least one of the jaw members movable from a first position where the jaw members are disposed in spaced relation relative to one another to a second position where the jaw members cooperate to grasp tissue therebetween, wherein at least one of the jaw members comprises:a seal plate having a tissue contacting surface, and a side wall extending from a peripheral edge of the tissue contacting surface wherein the side wall includes an outer surface and a bottom edge;a recess defined in the outer surface of the side wall;an insulating region disposed within at least a part of the recess; anda jaw housing fixed to the bottom edge of the side wall and at least a portion of the insulating region.2. The electrosurgical instrument according to claim 1 , wherein an outer surface of the insulating region is flush with the outer surface of the side wall.3. The electrosurgical instrument according to claim 1 , wherein the insulating region is formed from polyimide.4. The electrosurgical instrument according to claim 1 , wherein the insulating region is continuously-disposed along the side wall.5. The ...

Vessel Sealing Instrument with Reduced Thermal Spread and Method of Manufacture Therefor

An electrosurgical vessel sealing instrument having a first and a second opposing jaw member at a distal end thereof, wherein each jaw member includes a jaw housing, an inner tissue engaging surface, and an insulating layer disposed therebetween. The instrument includes the ability to move the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue. The jaws include a tissue-contacting seal plate having obverse and reverse surfaces. A series of ribs extend from the reverse surface of the seal plate into an insulating layer, which, in turn, is affixed to a jaw housing. The ribbed structure of the seal plate reduces thermal spread and edge cutting during vessel sealing procedures, leading to improved surgical outcomes.

Surgical Tissue Sealer

A method for manufacturing an end effector assembly is provided. The method includes grasping a gap-setting gauge between first and second jaw members moveable relative to one another about a pivot between a first, spaced-apart position and a second position proximate tissue and setting the first and second jaw members such that in the approximated position the jaw members cooperate to define a gap distance between the jaw members equivalent to the thickness of the gap-setting gauge such that when positioning tissue between the jaw members full approximation of the jaws is limited to the gap distance. 1. A method for manufacturing an end effector assembly , the method comprising:grasping a gap-setting gauge between first and second jaw members moveable relative to one another about a pivot between a first, spaced-apart position and a second position proximate tissue; andsetting the first and second jaw members such that in the approximated position the jaw members cooperate to define a gap distance between the jaw members equivalent to the thickness of the gap-setting gauge such that when positioning tissue between the jaw members, full approximation of the jaws is limited to the gap distance.2. The method according to claim 1 , wherein each of the first and second jaw members includes a jaw housing.3. The method according to claim 2 , wherein the setting step includes:depositing a non-solid material into the jaw housings; andsolidifying the non-solid material to secure a first sealing surface and second sealing surface within the first and second jaw members, respectively.4. The method according to claim 1 , wherein one of the first and second jaw members includes a cavity and the other of the first and second jaw members includes a stop member configured to be inserted into the cavity to set the gap distance.5. The method according to claim 4 , wherein the setting step includes:depositing a non-solid material into the cavity; andsolidifying the non-solid material, ...

Surgical Forceps

A forceps includes an end effector assembly having first and second jaw members. Each of the jaw members includes a proximal flange extending therefrom. Each of the proximal flanges defines a bifurcated configuration having first and second spaced-apart flange components. The first flange component of the first jaw member is configured to pivotably engage the second flange component of the second jaw member via a first protrusion-aperture coupling. The first flange component of the second jaw member is configured to pivotably engage the second flange component of the first jaw member via a second protrusion-aperture coupling different from the first protrusion-aperture coupling. One or both of the jaw members is pivotable relative to the other about the first and second protrusion-aperture couplings between a spaced-apart position and an approximated position for grasping tissue therebetween. 1. A forceps , comprising: 'first and second jaw members, each of the jaw members including a proximal flange extending therefrom, each proximal flange defining a bifurcated configuration having first and second spaced-apart flange components, the first flange component of the first jaw member configured to pivotably engage the second flange component of the second jaw member via a first protrusion-aperture coupling and the first flange component of the second jaw member configured to pivotably engage the second flange component of the first jaw member via a second protrusion-aperture coupling different from the first protrusion-aperture coupling, at least one of the first and second jaw members pivotable relative to the other about the first and second protrusion-aperture couplings between a spaced-apart position and an approximated position for grasping tissue therebetween.', 'an end effector assembly, including2. The forceps according to claim 1 , wherein the proximal flanges are disposed in an overlapping claim 1 , offset configuration relative to one another.3. The forceps ...

VESSEL SEALING INSTRUMENT WITH REDUCED THERMAL SPREAD AND METHOD OF MANUFACTURE THEREFOR

An electrosurgical vessel sealing instrument having a first and a second opposing jaw member at a distal end thereof, wherein each jaw member includes a jaw housing, a seal plate having a tissue contacting surface and a side wall, and an insulating region disposed on the side wall of the seal plate. The instrument includes the ability to move the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue. The insulating region enables precision overmolding of the jaw housing to the seal plate, while advantageously reducing thermal spread and edge cutting during vessel sealing procedures. 120-. (canceled)21. An end effector assembly for an electrosurgical instrument , comprising: an electrode having a tissue contacting surface and a side wall extending from the tissue contacting surface, the side wall including a series of ribs and a series of spaces therebetween; and', 'an insulator, wherein a portion of the insulator is disposed within each space of the series of spaces,', 'wherein the series of ribs and the portions of the insulator are configured to define a current flow path from the side wall towards the tissue contacting surface such that electrosurgical energy is inhibited from propagating to untargeted tissue., 'a first jaw member and a second jaw member, at least one of the first jaw member or the second jaw member movable relative to the other to grasp tissue therebetween, at least one of the first jaw member or the second jaw member including22. The end effector assembly according to claim 21 , wherein the tissue contacting surface includes a peripheral edge claim 21 , the side wall extending from the peripheral edge of the tissue contacting surface.23. The end effector assembly according to claim 22 , wherein a transition from the peripheral edge of the tissue contacting surface to the side wall defines an ...

Vessel sealing instrument with reduced thermal spread and method of manufacture therefor

An electrosurgical vessel sealing instrument having a first and a second opposing jaw member at a distal end thereof, wherein each jaw member includes a jaw housing, a seal plate having a tissue contacting surface and a side wall, and an insulating region disposed on the side wall of the seal plate. The instrument includes the ability to move the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue. The insulating region enables precision overmolding of the jaw housing to the seal plate, while advantageously reducing thermal spread and edge cutting during vessel sealing procedures.

METHODS OF MANUFACTURING JAW MEMBERS OF AN END-EFFECTOR ASSEMBLY FOR A SURGICAL INSTRUMENT

A method of manufacturing a jaw member of an end-effector assembly includes forming one or more stress-relief cavities within a sealing plate. Each one of the one or more stress-relief cavities defines a pad portion of an electrically-conductive surface of the sealing plate. The method also includes forming a stop member on each pad portion of the electrically-conductive surface of the sealing plate, performing an overmolding operation wherein the one or more stress-relief cavities is configured to prevent force applied to a bottom surface of the sealing plate during the overmolding operation from stressing each pad portion to avoid compromising adhesion between the stop member and the electrically-conductive surface of the sealing plate. 1. A method of manufacturing a jaw member of an end-effector assembly , comprising:forming at least one stress-relief cavity within a sealing plate, each one of the at least one stress-relief cavities defining a pad portion of an electrically-conductive surface of the sealing plate;forming a stop member on each pad portion of the electrically-conductive surface of the sealing plate; andperforming an overmolding operation wherein the at least one stress-relief cavity is configured to prevent force applied to a bottom surface of the sealing plate during the overmolding operation from stressing each pad portion to avoid compromising adhesion between the stop member and the electrically-conductive surface of the sealing plate.2. The method of claim 1 , wherein forming at least one stress-relief cavity includes forming a first portion of each one of the at least one stress-relief cavities configured to facilitate the formation of a stop member having a circle-like shape.3. The method of claim 1 , wherein forming at least one stress-relief cavity includes forming a second portion of each one of the at least one stress-relief cavities configured to prevent stress from external forces applied to the sealing plate from compromising adhesion ...

SURGICAL INSTRUMENT WITH RESILIENT DRIVING MEMBER AND RELATED METHODS OF USE

A forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and includes a pair of first and second jaw members. One or both of the first and second jaw members is movable relative to the other jaw member from a clamping position to an open position. A resilient member operably couples to at least one of the first and second jaw members. The resilient member is configured to bias the first and second jaw members in the clamping position and provide a closure force on tissue disposed therebetween. 1. An endoscopic forceps , comprising:an elongated shaft having a proximal end and a distal end;an end effector assembly disposed at a distal end of the shaft, the end effector assembly including a pair of first and second jaw members, at least one of the first and second jaw members movable relative to the other from a clamping position wherein the first and second jaw members cooperate to grasp tissue therebetween to an open position wherein the first and second jaw members are disposed in spaced relation relative to one another;a cam member configured to translate along a longitudinal axis defined through the shaft;a drive rod configured to translate along the longitudinal axis of the shaft;a resilient member disposed proximate to at least one of the jaw members and configured to operably couple a distal end of the of the drive rod to a proximal end of the cam member, wherein at least one of the first and second jaw members includes at least one cam slot defined therein is configured to receive the cam member such that upon movement thereof rotates the first and second jaw members from the clamping position to the open position.2. An endoscopic forceps according to claim 1 , wherein the type of resilient member is selected from the group consisting of a compression spring and a leaf spring.3. An endoscopic forceps according to claim 1 , further comprising a housing having a handle that extends ...

VESSEL SEALING INSTRUMENT WITH REDUCED THERMAL SPREAD AND METHOD OF MANUFACTURE THEREFOR

An electrosurgical vessel sealing instrument having a first and a second opposing jaw member at a distal end thereof, wherein each jaw member includes a jaw housing, a seal plate having a tissue contacting surface and a side wall, and an insulating region disposed on the side wall of the seal plate. The instrument includes the ability to move the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue. The insulating region enables precision overmolding of the jaw housing to the seal plate, while advantageously reducing thermal spread and edge cutting during vessel sealing procedures. 120-. (canceled)21. An electrosurgical instrument , comprising:a housing having at least one elongated shaft extending therefrom; a seal plate having a tissue contacting surface;', 'a side wall extending from a peripheral edge of the tissue contacting surface, the side wall including an outer surface and a bottom edge;', 'a recess defined in the outer surface of the side wall;', 'an insulating region disposed within at least a part of the recess; and', 'a jaw housing fixed to the bottom edge of the side wall and at least a portion of the insulating region., 'a first jaw member and a second opposing jaw member at a distal end of the elongated shaft, at least one of the jaw members movable from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween, at least one of the jaw members including22. The electrosurgical instrument according to claim 21 , wherein an outer surface of the insulating region is flush with the outer surface of the side wall.23. The electrosurgical instrument according to claim 21 , wherein the insulating region is formed from a polyimide.24. The electrosurgical instrument according to claim 21 ...

SYSTEM FOR MANUFACTURING ELECTROSURGICAL SEAL PLATES

A system for the manufacture of an end effector assembly which is configured for use with an electrosurgical instrument configured for performing an electrosurgical procedure is provided. The system includes a photolithography module that is configured to etch one or more pockets on a seal surface of the seal plate. A vacuum module is configured to raise, transfer and lower a spacer from a location remote from the pocket(s) on the seal plate to the pocket on the seal plate(s). An adhesive dispensing module is configured to dispense an adhesive into the pocket on the seal plate. An optical module is configured to monitor a volume of the adhesive dispensed within the pocket and monitor placement of the spacer within the pocket. 17-. (canceled)8. A method for manufacturing an electrosurgical seal plate , the method comprising:forming a seal plate from a sheet of material;etching at least one pocket on the formed seal plate;etching at least one retention feature on the formed seal plate;positioning the formed seal plate on a jaw member;securely retaining the seal plate to the jaw member via the at least one etched retention feature; andovermolding the positioned and formed seal plate to the jaw member.9. The method according to claim 8 , wherein forming a seal plate includes forming a plurality of seal plates from a sheet of metal.10. The method according to claim 8 , wherein etching at least one retention feature includes etching at least one flange extending at least along one side of the seal plate.11. The method according to claim 8 , wherein etching at least one retention feature includes etching at least one retention feature partially through the seal plate.12. The method according to claim 8 , wherein etching at least one retention feature includes etching at least one retention feature entirely through the seal plate.13. The method according to claim 8 , wherein etching at least one retention feature includes etching at least one slot at least partially through ...

METHOD OF CONSTRUCTING A JAW MEMBER FOR AN END EFFECTOR ASSEMBLY

An end effector assembly for use with an electrosurgical instrument is provided. The end effector assembly has a pair of opposing jaw members. One or more of the jaw members includes a support base, an electrical jaw lead, and a sealing plate coupled to the electrical jaw lead. The sealing plate has a stainless steel layer and one or more piezo electric sensors. The jaw member also includes an insulative plate disposed between the support base and the sealing plate. 1. An end effector assembly including a pair of opposing jaw members , at least one of the jaw members comprising:a support base;an electrical jaw lead;a sealing plate coupled to the electrical jaw lead, the sealing plate having a stainless steel layer and at least one piezo electric sensor; andan insulative plate disposed between the support base and the sealing plate.2. The end effector assembly according to claim 1 , wherein the insulative plate is a flex circuit comprising:a plastic substrate; anda circuit trace having at least one contact coupled thereto, the at least one contact is coupled to the at least one piezo electric sensor.3. The end effector assembly according to claim 2 , wherein the contact is operatively coupled to a controller via a contact trace.4. An electrosurgical instrument for sealing tissue claim 2 , comprising:a housing having at least one shaft that extends therefrom;a handle assembly operably coupled to the housing;a rotating assembly operably coupled to and configured to rotate the at least one shaft; a support base;', 'an electrical jaw lead;', 'a sealing plate coupled to the electrical jaw lead, the sealing plate having a stainless steel layer and at least one piezo electric sensor; and', 'an insulative plate disposed between the support base and the sealing plate., 'an end effector assembly disposed at a distal end of the at least one shaft including a pair of opposing jaw members, at least one of the jaw members comprising5. The electrosurgical instrument according to ...

SURGICAL TISSUE SEALER

A method for manufacturing an end effector assembly includes providing first and second jaw members moveable relative to one another about a pivot between a first, spaced-apart position and a second, approximated position. One of the first and second jaw members includes a cavity defined therein and the other of the first and second jaw members includes a stop member configured to be inserted into the cavity. A gap-setting gauge is grasped between the first and second jaw members to define a gap-distance between the jaw members equivalent to a thickness of the gap-setting gauge. The first and second jaw members are set such that the jaw members are prevented from approximation beyond the gap-distance. 113-. (canceled)14. A method of manufacturing an end effector assembly , the method comprising:grasping a gap-setting gauge between first and second jaw members to define a gap-distance between the first and second jaw members equivalent to a thickness of the gap-setting gauge; andmoving a stop member a distance within an aperture defined in the first jaw member into engagement with the second jaw member when the first and second jaw members are in a fully grasped position such that the first and second jaw members are prevented from approximating beyond the gap-distance.15. The method according to claim 14 , wherein the stop member has a threaded shaft configured to threadably interface with the aperture.16. The method according to claim 15 , wherein moving the stop member includes rotating the stop member within the aperture to translate the stop member relative to the first jaw member.17. The method according to claim 14 , further comprising fixing the stop member relative to the first jaw member after the stop member is moved the distance within the aperture into engagement with the second jaw member. The present application is a division of U.S. patent application Ser. No. 14/297,316, filed on Jun. 5, 2014, which is a division of U.S. application Ser. No. 13/412, ...

SURGICAL INSTRUMENTS INCLUDING KNIFE ASSEMBLIES WITH REDUCIBLE CUTTING HEIGHT

A knife assembly of a surgical end effector assembly includes a knife body defining a longitudinal axis and having first and second arms. The first arm has a first head including a cutting edge at a distal end thereof and the second arm has a second head. The first head is pivotable relative to the second head to reduce a cutting height during translation of the knife assembly through a knife channel defined within the end effector assembly. 1. A knife assembly of a surgical end effector assembly , the knife assembly comprising:a knife body defining a longitudinal axis and having first and second arms, the first arm having a first head including a cutting edge at a distal end thereof and the second arm having a second head, wherein at least the first head is pivotable relative to the second head to reduce a cutting height during translation of the knife assembly through a knife channel defined within the end effector assembly.2. The knife assembly of claim 1 , wherein the first arm defines a first ramp configured to move the first arm relative to the second arm during translation of the knife assembly through the knife channel.3. The knife assembly of claim 2 , wherein the second arm defines a second ramp configured to move the second arm relative to the first arm during translation of the knife assembly through the knife channel.4. The knife assembly of claim 3 , wherein the first and second ramps are longitudinally offset from one another.5. The knife assembly of claim 1 , wherein the first head includes a notch defined in a proximal end thereof claim 1 , the notch configured to receive the second head therein.6. The knife assembly of claim 5 , wherein the first head is configured to matingly receive the second head while the second head is received within the notch of the first head.7. The knife assembly of claim 1 , wherein relative pivoting movement between the first and second heads causes the first and second heads to move between an unapproximated position ...

INSULATED SEALING PLATE

An end effector assembly for use with an electrosurgical instrument is provided. The end effector assembly has a pair of opposing jaw members. Each of the jaw members has a support base, an electrical jaw lead, and a sealing plate coupled to the electrical jaw lead. The sealing plate has a stainless steel layer and an electrically insulative layer. 113-. (canceled)14. A method of manufacturing a jaw member of an electrosurgical end effector assembly , the steps comprising:bonding an electrically insulative layer to an underside of a stainless steel tissue sealing surface;coupling an electrical lead to the tissue sealing surface, the electrical lead adapted to connect the tissue sealing surface to an energy source;engaging the underside of the tissue sealing surface to a support base; andovermolding an insulative material about the support base to secure the tissue sealing surface thereto.15. A method according to claim 14 , further comprising forming the support base from machined steel.16. A method according to claim 14 , wherein overmolding an insulative material includes overmolding an insulative plastic material about the support base.17. A method according to claim 14 , wherein bonding an electrically insulative layer further includes applying adhesive to the underside of the tissue sealing surface.18. A method according to claim 14 , wherein bonding an electrically insulative layer includes bonding polyimide to an underside of the tissue sealing surface. This application is a divisional of U.S. application Ser. No. 12/770,380, filed Apr. 29, 2010, the disclosure of which is incorporated herein by reference in its entirety.1. Technical FieldThe present disclosure relates to an electrosurgical instrument and method for sealing tissue. More particularly, the present disclosure relates to an electrosurgical tool including opposing jaw members having sealing plates with improved electrical insulation.2. Background of the Related ArtElectrosurgical forceps utilize ...

METHOD FOR MANUFACTURING AN ELECTRODE ASSEMBLY CONFIGURED FOR USE WITH AN ELECTROSURIGCAL INSTRUMENT

A method for manufacturing an electrode configuration configured for use with an electrosurgical instrument is provided. A pre-assembled jaw configuration including jaw members including respective first and second electrodes is provided. One or more stop members are positioned on the first electrode. The first and second electrodes are approximated toward one another for contact therebetween so as to form an at least one indentation on the second electrode. 1. A method for manufacturing an electrode configuration for an electrosurgical instrument , comprising:providing a jaw configuration including first and second jaw members including respective first and second electrodes, the first electrode having at least one stop member;approximating the first and second jaw members including the electrodes toward one another for contact therebetween; andforming at least one indentation on the second electrode.2. The method according to claim 1 , wherein approximating includes compressing the first and second jaw members with a compressive force that ranges from about 6 kg/cmto about 32 kg/cm.3. The method according to claim 1 , including utilizing a ceramic dot for the at least one stop member.4. The method according to claim 1 , further including providing a shim between the first and second electrodes prior to approximating the first and second jaw members including the electrodes toward one another so as to control a depth of the at least one indentation.5. The method according to claim 1 , including removing at least a portion of a bottom surface of the second electrode to facilitate forming the at least one indentation thereon claim 1 , wherein the at least a portion of the bottom surface of the second electrode is located directly beneath the position of where the at least one indentation is to be formed.6. The method according to claim 5 , wherein removing includes etching.7. The method according to claim 1 , including chemically treating at least a portion of a ...

ELECTROSURGICAL SEAL PLATES

A system for the manufacture of an end effector assembly which is configured for use with an electrosurgical instrument configured for performing an electrosurgical procedure is provided. The system includes a photolithography module that is configured to etch one or more pockets on a seal surface of the seal plate. A vacuum module is configured to raise, transfer and lower a spacer from a location remote from the pocket(s) on the seal plate to the pocket on the seal plate(s). An adhesive dispensing module is configured to dispense an adhesive into the pocket on the seal plate. An optical module is configured to monitor a volume of the adhesive dispensed within the pocket and monitor placement of the spacer within the pocket. 17-. (canceled)8. An end effector configured for use with an electrosurgical device , the end effector comprising:a first jaw member including a seal plate, the seal plate including a plurality of retention features configured to operably engage the seal plate to an overmolding material; anda second jaw member operably coupled to the first jaw member such that at least one of the first jaw member or the second jaw member is movable relative to the other between an open condition and a closed condition, the second jaw member including a seal surface including a recess defined therein.9. The end effector according to claim 8 , wherein the first jaw member is movable relative to the second jaw member.10. The end effector according to claim 8 , wherein the second jaw member is movable relative to the first jaw member.11. The end effector according to claim 8 , further comprising a spacer extending from the recess and configured to maintain a gap distance between the seal plate of the first jaw member and the seal surface of the second jaw member when the first and second jaw members are in the closed condition.12. The end effector according to claim 11 , wherein the spacer extends above the seal surface of the second jaw member a distance in a ...

SYSTEM FOR MANUFACTURING ELECTROSURGICAL SEAL PLATES

A system for the manufacture of an end effector assembly which is configured for use with an electrosurgical instrument configured for performing an electrosurgical procedure is provided. The system includes a photolithography module that is configured to etch one or more pockets on a seal surface of the seal plate. A vacuum module is configured to raise, transfer and lower a spacer from a location remote from the pocket(s) on the seal plate to the pocket on the seal plate(s). An adhesive dispensing module is configured to dispense an adhesive into the pocket on the seal plate. An optical module is configured to monitor a volume of the adhesive dispensed within the pocket and monitor placement of the spacer within the pocket. 17-. (canceled)8. An end effector for an electrosurgical instrument , comprising:a first jaw member comprising a first sealing surface including a plurality of flanges configured to secure the sealing surface to an overmolding material; anda second jaw member comprising a second sealing surface and a spacer disposed within a pocket defined in the second jaw member, the spacer configured to maintain a desired gap distance between the first and second sealing surfaces when the first and second jaw members are in a closed position.9. The end effector according to claim 8 , wherein the pocket has a depth of 0.002 inches.10. The end effector according to claim 8 , wherein the pocket extends through an entire depth of the second sealing surface.11. The end effector according to claim 8 , wherein the pocket extends through a partial depth of the second sealing surface.12. The end effector according to claim 8 , wherein the spacer extends from the second sealing surface a distance that ranges from 0.005 inches to 0.01 inches.13. The end effector according to claim 8 , wherein the spacer includes a hemispherical configuration.14. The end effector according to claim 8 , wherein the spacer includes a cylindrical configuration.15. The end effector ...

SURGICAL INSTRUMENT WITH RESILIENT DRIVING MEMBER AND RELATED METHODS OF USE

A forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and includes a pair of first and second jaw members. One or both of the first and second jaw members is movable relative to the other jaw member from a clamping position to an open position. A resilient member operably couples to at least one of the first and second jaw members. The resilient member is configured to bias the first and second jaw members in the clamping position and provide a closure force on tissue disposed therebetween. 120-. (canceled)21. An endoscopic forceps , comprising:a shaft having a proximal end and a distal end and defining a longitudinal axis;an end effector assembly disposed at the distal end of the shaft and including a first jaw member and a second jaw member, at least one of the first and second jaw members movable relative to the other between a clamping position wherein the first and second jaw members cooperate to grasp tissue therebetween and an open position wherein the first and second jaw members are disposed in spaced relation relative to one another;a first cam follower disposed on a proximal end of the first jaw member and a second cam follower disposed on a proximal end of the second jaw member;a cam assembly disposed within the shaft and configured to translate along the longitudinal axis, the cam assembly defining a first cam slot and a second cam slot, the first cam follower configured to slide along the first cam slot and the second cam follower configured to slide along the second cam slot;a drive rod configured to translate along the longitudinal axis defined by the shaft; anda resilient member coupling the drive rod to the cam assembly.22. The endoscopic forceps of claim 21 , wherein longitudinal movement of the resilient member along the longitudinal axis of the shaft moves the first and second jaw members between the clamping position and the open position.22. The endoscopic ...

PRESSURE SENSING SEALING PLATE

An end effector assembly for use with an electrosurgical instrument is provided. The end effector assembly has a pair of opposing jaw members. One or more of the jaw members includes a support base, an electrical jaw lead, and a sealing plate coupled to the electrical jaw lead. The sealing plate has a stainless steel layer and one or more piezo electric sensors. The jaw member also includes an insulative plate disposed between the support base and the sealing plate. 18-. (canceled)9. A method of constructing a jaw member for an end effector assembly , the method comprising: adhering a conductive layer to a plastic substrate;', 'applying a conductive layer mask to the conductive layer such that the conductive layer mask exposes a portion of the conductive layer and outlines a circuit trace and a contact;', 'etching the exposed portion of the conductive layer; and', 'removing the conductive layer mask;, 'assembling an insulative plate byattaching the insulative plate to a support base of a jaw member;aligning a sealing plate having a hole defined therein such that the hole overlays the contact of the insulative plate; andcoupling a sensor to the contact of the insulative plate.10. The method according to claim 9 , wherein coupling the sensor to the contact of the insulative plate includes disposing the sensor in the hole of the sealing plate.11. The method according to claim 9 , wherein coupling the sensor to the contact of the insulative plate includes raising the sensor relative to the sealing plate such that the sensor is configured to create a gap between a sealing plate of an opposed jaw member and the sealing plate.12. The method according to claim 9 , further comprising assembling the sealing plate aligning attaching the sealing plate over the insulative plate.13. The method according to claim 12 , wherein assembling the sealing plate includes applying a sealing plate mask to a stainless steel layer of the sealing plate to expose a portion of the stainless ...

Method of constructing a jaw member for an end effector assembly

An end effector assembly for use with an electrosurgical instrument is provided. The end effector assembly has a pair of opposing jaw members. One or more of the jaw members includes a support base, an electrical jaw lead, and a sealing plate coupled to the electrical jaw lead. The sealing plate has a stainless steel layer and one or more piezo electric sensors. The jaw member also includes an insulative plate disposed between the support base and the sealing plate.

SURGICAL INSTRUMENT SHAFTS AND METHODS OF MANUFACTURING SHAFTS FOR SURGICAL INSTRUMENTS

A method of manufacturing a shaft of a surgical instrument including forming a proximal segment of the shaft to include one or more features for operably engaging the shaft to a first component of the surgical instrument, forming a distal segment of the shaft to include one or more features for operably engaging the shaft to a second component of the surgical instrument and forming an intermediate segment of the shaft. The proximal segment is welded to a proximal end of the intermediate segment; and the distal segment is welded to a distal end of the intermediate segment. The proximal and distal segments are welded to the intermediate segment such that the one or more features thereof are aligned in a pre-determined orientation relative to one another. 120-. (canceled)21. A method of manufacturing a component of a surgical instrument , comprising:providing a first section including a first feature for operably engaging the component to a first portion of the surgical instrument;providing a second section including a second feature for operably engaging the component to a second portion of the surgical instrument;providing a third section;welding the first section to the third section; andwelding the second section to the third section, wherein the welding of at least one of the first section or the second section to the third section is controlled such that when the first and second sections are welded to the third section, the first and second features are positioned in a pre-determined orientation relative to one another.22. The method according to claim 21 , wherein at least one of the first section or the second section is welded to the third section via laser welding.23. The method according to claim 21 , wherein at least one of the first section or the second section is welded to the third section via spin-welding.24. The method according to claim 21 , wherein the welding of the first section to the third section and the welding of the second section to the ...

SURGICAL TISSUE SEALER

A method for manufacturing an end effector assembly includes providing first and second jaw members moveable relative to one another about a pivot between a first, spaced-apart position and a second, approximated position. One of the first and second jaw members includes a cavity defined therein and the other of the first and second jaw members includes a stop member configured to be inserted into the cavity. A gap-setting gauge is grasped between the first and second jaw members to define a gap-distance between the jaw members equivalent to a thickness of the gap-setting gauge. The first and second jaw members are set such that the jaw members are prevented from approximation beyond the gap-distance. 113-. (canceled)14. A method for manufacturing an end effector assembly , the method comprising:providing first and second jaw members moveable relative to one another about a pivot between a first, spaced-apart position and a second, approximated position, wherein one of the first and second jaw members includes a cavity defined therein and the other of the first and second jaw members includes a stop member extending therethrough and configured to engage the cavity upon movement of the jaw members from the spaced-apart position to the approximated position;grasping a gap-setting gauge between the first and second jaw members while allowing the stop member to engage the cavity, the gap-setting gauge defining a gap-distance between the jaw members equivalent to a thickness of the gap-setting gauge; andfixing the first and second jaw members such that the jaw members are prevented from approximating beyond the gap-distance.15. The method according to claim 14 , wherein fixing includes depositing a setting material into the cavity and allowing the setting material to engage the stop member and cure.16. The method according to claim 15 , wherein the setting material is a non-solid material deposited into the cavity to a sufficient level such that once the stop member is ...

Blade Tip Profile for Use in Cutting of Tissue

Methods and devices are described for the design and manufacturing of a knife with a robust cutting edge profile for use in surgical procedures. The cutting edge profile may be defined by a combination of a cutting edge angle and a radius of the cutting edge tip. In some embodiments, the cutting edge profile may be defined by a combination of a web thickness profile and a radius of the cutting edge tip. Numerical ranges are identified for each of the various geometric parameters which may define a cutting edge that provides sufficient knife sharpness over many cutting repetitions. In some embodiments a medical device, which implements a knife with a cutting edge, for use in surgical procedures is described. Methods for forming a knife with a cutting edge including a cutting edge angle, a cutting edge tip radius, and/or a web thickness profile are described. 1. A knife for cutting tissue comprising:a cutting edge including a tip, wherein a radius of the tip is between 0.000007 inches and 0.0001 inches; anda cutting edge angle of the cutting edge, wherein the cutting edge angle is between 22 degrees and 31 degrees.2. The knife of claim 1 , further comprising:a knife length between 7 inches and 11 inches; anda knife width between 0.125 inches and 0.5 inches.3. The knife of claim 1 , wherein within a distance of 0.003 inches from the tip claim 1 , the knife comprises a material with a Rockwell C hardness between 47-53.4. The knife of claim 3 , wherein the material is stainless steel or titanium.5. The knife of claim 3 , wherein the material is coated from a vapor deposition process.6. A knife for cutting tissue comprising:a cutting edge including a tip, where a radius of the tip is between 0.000007 inches and 0.0001 inches; anda web thickness profile of the cutting edge, the web thickness profile defined by a web thickness that varies as a function of distance from the tip, wherein at a distance of 0.003 inches from the tip, the web thickness is between 0.0012 inches ...

VESSEL SEALING INSTRUMENT WITH REDUCED THERMAL SPREAD AND METHOD OF MANUFACTURING THEREFOR

An electrosurgical vessel sealing instrument having a first and a second opposing jaw member at a distal end thereof, wherein each jaw member includes a jaw housing, an inner tissue engaging surface, and an insulating layer disposed therebetween. The instrument includes the ability to move the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue. The jaws include a tissue-contacting seal plate having obverse and reverse surfaces. A series of ribs extend from the reverse surface of the seal plate into an insulating layer, which, in turn, is affixed to a jaw housing. The ribbed structure of the seal plate reduces thermal spread and edge cutting during vessel sealing procedures, leading to improved surgical outcomes. 1. An electrosurgical instrument , comprising:a first jaw member and a second opposing jaw member at a distal end of the electrosurgical instrument, wherein at least one of the first jaw member or the second jaw member includes:a jaw housing;a seal plate having a tissue-contacting surface and a reverse surface; andan insulating layer disposed therebetween;wherein at least one of the jaw members are movable from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue therebetween; andone or more ribs extending from a reverse surface of the seal plate into the insulating layer.2. The electrosurgical instrument according to claim 1 , wherein the ribs are arranged transversely to a longitudinal axis of the jaw member.3. The electrosurgical instrument according to claim 1 , further comprising at least one valley disposed between two or more ribs claim 1 , wherein the ratio of the width of the rib to the width of the valley is about 1:5.4. The electrosurgical instrument according to claim 1 , ...

TEMPERATURE-SENSING ELECTRICALLY-CONDUCTIVE TISSUE-CONTACTING PLATE AND METHODS OF MANUFACTURING SAME

An end-effector assembly includes opposing jaw members movably mounted with respect to one another. At least one of the jaw members includes a temperature-sensing electrically-conductive tissue-contacting plate having a tissue-contacting surface and a bottom surface. A first layer is disposed on one or more portions of the bottom surface of the temperature-sensing electrically-conductive tissue-contacting plate. The first layer includes an electrically-insulative material. One or more openings are formed in the first layer. One or more electrically-conductive traces are formed over the electrically-insulative material and associated with the one or more openings. One or more temperature sensors are coupled to the bottom surface of the temperature-sensing electrically-conductive tissue-contacting plate and associated with the one or more openings. The one or more openings are each configured to receive at least a portion of the one or more temperature sensors therein. The one or more temperature sensors are electrically coupled to the one or more electrically-conductive traces. 1. An end-effector assembly , comprising:opposing jaw members movably mounted with respect to one another, at least one of the jaw members including a temperature-sensing electrically-conductive tissue-contacting plate having a tissue-contacting surface and a bottom surface;a first layer disposed on at least a portion of the bottom surface of the temperature-sensing electrically-conductive tissue-contacting plate, the first layer including an electrically-insulative material;at least one opening formed in the first layer;at least one electrically-conductive trace formed over a portion of the electrically-insulative material, the at least one electrically-conductive trace associated with the at least one opening; andat least one temperature sensor coupled to the bottom surface of the temperature-sensing electrically-conductive tissue-contacting plate and associated with the at least one opening ...

TEMPERATURE-SENSING ELECTRICALLY-CONDUCTIVE TISSUE-CONTACTING PLATE CONFIGURED FOR USE IN AN ELECTROSURGICAL JAW MEMBER, ELECTROSURGICAL SYSTEM INCLUDING SAME, AND METHODS OF CONTROLLING VESSEL SEALING USING SAME

An electrosurgical system includes an electrosurgical instrument, an electrosurgical power generating source, and a controller. The electrosurgical instrument includes a shaft extending from a housing. The shaft includes a distal end configured to support an end-effector assembly. The end-effector assembly includes opposing jaw members movably mounted with respect to one another and moveable from a first position in spaced relation relative to one another to at least one subsequent position wherein the jaw members cooperate to grasp tissue therebetween. At least one of the jaw members includes a temperature-sensing electrically-conductive tissue-contacting plate defining a bottom surface. One or more temperature sensors are coupled to the bottom surface. The controller is configured to control one or more operating parameters associated with the electrosurgical power generating source based on one or more signals indicative of a tissue impedance value and indicative of a temperature sensed by the one or more temperature sensors. 1. An electrosurgical system , comprising: a housing; and', 'opposing jaw members movably mounted with respect to one another, at least one of the jaw members including a temperature-sensing electrically-conductive tissue-contacting plate defining a tissue-contacting surface and a bottom surface, wherein one or more temperature sensors are coupled to the bottom surface thereof, the jaw members moveable from a first position in spaced relation relative to one another to at least one subsequent position wherein the jaw members cooperate to grasp tissue therebetween;', 'a shaft extending from the housing and including a distal end configured to support an end-effector assembly, the end-effector assembly including], 'an electrosurgical instrument, includingan electrosurgical power generating source; anda controller operably coupled to the electrosurgical power generating source and configured to control at least one operating parameter ...

MULTI-CIRCUIT SEAL PLATES

An end effector assembly adapted to couple to an electrosurgical instrument, the end effector assembly including a pair of opposing jaw members pivotably attached about a pivot member and moveable from a first spaced position to a second grasping position. Each jaw member includes a jaw housing and a seal plate formed on an inner surface of the jaw member including at least two seal plate segments extending along a substantial portion of the length of the jaw members. An insulating member is positioned between adjacent seal plate segments and configured to provide electrical isolation between adjacent seal plate segments. Each sealing plate segment is adapted to selectively connect to an electrosurgical energy source and form part of an electrosurgical energy delivery circuit. 1. (canceled)2. An end effector assembly , comprising: a seal plate formed on an inner-facing surface of the jaw member including at least two seal plate segments adjacent one another and extending along a portion of a length of the jaw members; and', 'an insulating member positioned between each adjacent seal plate segment and configured to provide electrical isolation therebetween,, 'a pair of opposing jaw members pivotably attached to one another and moveable between a first position for approximating tissue and a second position for grasping tissue, each jaw member includingwherein each of the at least two seal plate segments is adapted to connect to an electrosurgical energy source.3. The end effector assembly according to claim 2 , wherein each jaw member includes a jaw housing and a seal plate mount claim 2 , the seal plate mount configured to operably couple the seal plate and the jaw housing and further configured to electrically couple each of the at least two seal plate segments to the electrosurgical energy source.4. The end effector assembly according to claim 3 , wherein the seal plate mount includes at least one switch circuit board disposed on and operably coupled to the seal ...

SURGICAL FORCEPS

A forceps includes an end effector assembly having first and second jaw members. Each of the jaw members includes a proximal flange extending therefrom. Each of the proximal flanges defines a bifurcated configuration having first and second spaced-apart flange components. The first flange component of the first jaw member is configured to pivotably engage the second flange component of the second jaw member via a first protrusion-aperture coupling. The first flange component of the second jaw member is configured to pivotably engage the second flange component of the first jaw member via a second protrusion-aperture coupling different from the first protrusion-aperture coupling. One or both of the jaw members is pivotable relative to the other about the first and second protrusion-aperture couplings between a spaced-apart position and an approximated position for grasping tissue therebetween. 1. A forceps , comprising: 'first and second jaw members, each of the jaw members including a proximal flange extending therefrom, each proximal flange defining a bifurcated configuration having first and second spaced-apart flange components, the first flange component of the first jaw member configured to pivotably engage the second flange component of the second jaw member via a first protrusion-aperture coupling and the first flange component of the second jaw member configured to pivotably engage the second flange component of the first jaw member via a second protrusion-aperture coupling different from the first protrusion-aperture coupling, at least one of the first and second jaw members pivotable relative to the other about the first and second protrusion-aperture couplings between a spaced-apart position and an approximated position for grasping tissue therebetween.', 'an end effector assembly, including2. The forceps according to claim 1 , wherein the proximal flanges are disposed in an overlapping claim 1 , offset configuration relative to one another.3. The forceps ...

SURGICAL INSTRUMENT WITH RESILIENT DRIVING MEMBER AND RELATED METHODS OF USE

A forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and includes a pair of first and second jaw members. One or both of the first and second jaw members is movable relative to the other jaw member from a clamping position to an open position. A resilient member operably couples to at least one of the first and second jaw members. The resilient member is configured to bias the first and second jaw members in the clamping position and provide a closure force on tissue disposed therebetween. 120-. (canceled)21. An endoscopic forceps , comprising:a shaft having a proximal portion and a distal portion and defining a longitudinal axis;an end effector assembly disposed at the distal portion of the shaft and including a first jaw member and a second jaw member, at least one of the first or second jaw members movable relative to the other jaw member between a clamping position wherein the first and second jaw members cooperate to grasp tissue therebetween and an open position wherein the first and second jaw members are disposed in spaced relation relative to one another;a drive rod having a proximal portion and a distal portion and configured to translate along the longitudinal axis of the shaft, the distal portion of the drive rod operably coupled to at least one of the first or second jaw member; anda resilient member disposed between the proximal and distal portions of the drive rod and configured to provide a predetermined closure force between the first and second jaw members when the first and second jaw members are in the clamping position.22. The endoscopic forceps of claim 21 , wherein longitudinal movement of the resilient member along the longitudinal axis transitions the first and second jaw members between the clamping position and the open position.23. The endoscopic forceps of claim 21 , wherein the resilient member is selected from the group consisting of a compression spring ...

Surgical instrument with resilient driving member and related methods of use

A forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and includes a pair of first and second jaw members. One or both of the first and second jaw members is movable relative to the other jaw member from a clamping position to an open position. A resilient member operably couples to at least one of the first and second jaw members. The resilient member is configured to bias the first and second jaw members in the clamping position and provide a closure force on tissue disposed therebetween.

DOUBLE BEVEL BLADE TIP PROFILE FOR USE IN CUTTING OF TISSUE

Methods and devices are described for the design and manufacturing of a knife with a robust double bevel cutting edge profile for use in surgical procedures. The double bevel cutting edge profile may be defined by a combination of a cutting edge angle and a radius of the cutting edge tip. In some embodiments, the cutting edge profile may be defined by a combination of a web thickness profile and a radius of the cutting edge tip. Numerical ranges are identified for each of the various geometric parameters which may define a cutting edge that provides sufficient knife sharpness over many cutting repetitions. In some embodiments a medical device, which implements a knife with a cutting edge, for use in surgical procedures is described. Methods for forming a knife with a double bevel cutting edge including a cutting edge angle, a cutting edge tip radius, and/or a web thickness profile are described. 1. A knife for cutting tissue comprising:a double bevel cutting edge including a tip, wherein a radius of the tip is between 0.000008 inches and 0.000015 inches; anda cutting edge angle of the cutting edge, wherein the cutting edge angle is between 28 degrees and 36 degrees.2. The knife of claim 1 , wherein the radius of the tip is between 0.0000092 inches and 0.000014 inches.3. The knife of claim 1 , wherein the radius of the tip is between 0.00001 inches and 0.000013 inches.4. The knife of claim 1 , wherein the radius of the tip is 0.000012 inches.5. The knife of claim 1 , wherein the cutting edge angle is between 30 degrees and 34 degrees.6. The knife of claim 1 , wherein the cutting edge angle is 32 degrees.7. The knife of claim 1 , further comprising:a knife length between 7 inches and 16 inches; anda knife width between 0.125 inches and 0.5 inches.8. The knife of claim 1 , wherein within a distance of 0.003 inches from the tip claim 1 , the knife comprises a material with a Rockwell C hardness between 47 and 53.9. The knife of claim 8 , wherein the material is ...

METHOD FOR MANUFACTURING AN ELECTRODE ASSEMBLY CONFIGURED FOR USE WITH AN ELECTROSURGICAL INSTRUMENT

A method for manufacturing an electrode configuration configured for use with an electrosurgical instrument is provided. A pre-assembled jaw configuration including jaw members including respective first and second electrodes is provided. One or more stop members are positioned on the first electrode. The first and second electrodes are approximated toward one another for contact therebetween so as to form an at least one indentation on the second electrode. 120-. (canceled)21. A method for manufacturing an electrode for an electrosurgical instrument , comprising:positioning a stop member on a first electrode of a first jaw member;approximating the first jaw member and a second jaw member, wherein a portion of a bottom surface of a second electrode of the second jaw member is configured to deform when a predetermined force is applied thereto; andcontacting the stop member of the first electrode with the second electrode to deform the portion of the bottom surface of the second electrode, thereby forming an indentation in the second electrode.22. The method according to claim 21 , wherein approximating the first and second jaw members includes compressing the first and second jaw members with an indentation force that is at least double a compressive force claim 21 , the indentation force ranging from about 6 kg/cmto about 32 kg/cm.23. The method according to claim 21 , wherein the stop member is a ceramic dot and forms an indentation with a rounded configuration.24. The method according to claim 21 , further comprising positioning a shim between the first and second electrodes to control a depth of the indentation.25. The method according to claim 24 , wherein the shim is positioned between the first and second electrodes prior to approximating the first and second jaw members.26. The method according to claim 21 , further comprising removing the portion of the bottom surface of the second electrode to form a cavity therein.27. The method according to claim 26 , ...

SYSTEM FOR MANUFACTURING ELECTROSURGICAL SEAL PLATES

A system for the manufacture of an end effector assembly which is configured for use with an electrosurgical instrument configured for performing an electrosurgical procedure is provided. The system includes a photolithography module that is configured to etch one or more pockets on a seal surface of the seal plate. A vacuum module is configured to raise, transfer and lower a spacer from a location remote from the pocket(s) on the seal plate to the pocket on the seal plate(s). An adhesive dispensing module is configured to dispense an adhesive into the pocket on the seal plate. An optical module is configured to monitor a volume of the adhesive dispensed within the pocket and monitor placement of the spacer within the pocket. 17-. (canceled)8. An end effector configured for use with an electrosurgical forceps device , the end effector comprising:a first jaw member comprising a first sealing surface including a plurality of flanges configured to secure the sealing surface to an overmolding material; and a second sealing surface having a recess defined therein; and', 'a spacer extending from the recess and configured to maintain a gap distance between the first and second sealing surfaces when the first and second jaw members are in the closed condition., 'a second jaw member operably coupled to the first jaw member such that at least one of the first jaw member or the second jaw member is movable relative to the other between an open condition and a closed condition, the second jaw member including9. The end effector according to claim 8 , further comprising an adhesive disposed within the recess and configured to retain the spacer within the recess.10. The end effector according to claim 8 , wherein the first jaw member is movable relative to the second jaw member.11. The end effector according to claim 8 , wherein the second jaw member is movable relative to the first jaw member12. The end effector according to claim 8 , wherein the spacer extends above the second ...

Method for manufacturing electrosurgical seal plates

A method of manufacture for an end effector assembly is provided. The method includes providing a pair of jaw members. A step of the method includes forming one or more seal plates positionable on one of the pair of jaw members. Etching a dam along a side of the one or more seal plates is a step of the method, wherein the etched dam inhibits the flow of a plastic on the one or more seal plate such that a height of the plastic with respect to the at least one seal plate during an overmolding process may be controlled. The method includes positioning the one or more seal plates on the one of the pair of jaw members; and overmolding the seal plate to one or more of the pair of jaw members.

System for manufacturing electrosurgical seal plates

A system for the manufacture of an end effector assembly which is configured for use with an electrosurgical instrument configured for performing an electrosurgical procedure is provided. The system includes a photolithography module that is configured to etch one or more pockets on a seal surface of the seal plate. A vacuum module is configured to raise, transfer and lower a spacer from a location remote from the pocket(s) on the seal plate to the pocket on the seal plate(s). An adhesive dispensing module is configured to dispense an adhesive into the pocket on the seal plate. An optical module is configured to monitor a volume of the adhesive dispensed within the pocket and monitor placement of the spacer within the pocket.

Method of manufacturing electrosurgical seal plates

A system for the manufacture of an end effector assembly which is configured for use with an electrosurgical instrument configured for performing an electrosurgical procedure is provided. The system includes a photolithography module that is configured to etch one or more pockets on a seal surface of the seal plate. A vacuum module is configured to raise, transfer and lower a spacer from a location remote from the pocket(s) on the seal plate to the pocket on the seal plate(s). An adhesive dispensing module is configured to dispense an adhesive into the pocket on the seal plate. An optical module is configured to monitor a volume of the adhesive dispensed within the pocket and monitor placement of the spacer within the pocket.

System for manufacturing electrosurgical seal plates

A system for the manufacture of an end effector assembly which is configured for use with an electrosurgical instrument configured for performing an electrosurgical procedure is provided. The system includes a photolithography module that is configured to etch one or more pockets on a seal surface of the seal plate. A vacuum module is configured to raise, transfer and lower a spacer from a location remote from the pocket(s) on the seal plate to the pocket on the seal plate(s). An adhesive dispensing module is configured to dispense an adhesive into the pocket on the seal plate. An optical module is configured to monitor a volume of the adhesive dispensed within the pocket and monitor placement of the spacer within the pocket.

Electrosurgical seal plates

A system for the manufacture of an end effector assembly which is configured for use with an electrosurgical instrument configured for performing an electrosurgical procedure is provided. The system includes a photolithography module that is configured to etch one or more pockets on a seal surface of the seal plate. A vacuum module is configured to raise, transfer and lower a spacer from a location remote from the pocket(s) on the seal plate to the pocket on the seal plate(s). An adhesive dispensing module is configured to dispense an adhesive into the pocket on the seal plate. An optical module is configured to monitor a volume of the adhesive dispensed within the pocket and monitor placement of the spacer within the pocket.

Electrosurgical seal plates

A system for the manufacture of an end effector assembly which is configured for use with an electrosurgical instrument configured for performing an electrosurgical procedure is provided. The system includes a photolithography module that is configured to etch one or more pockets on a seal surface of the seal plate. A vacuum module is configured to raise, transfer and lower a spacer from a location remote from the pocket(s) on the seal plate to the pocket on the seal plate(s). An adhesive dispensing module is configured to dispense an adhesive into the pocket on the seal plate. An optical module is configured to monitor a volume of the adhesive dispensed within the pocket and monitor placement of the spacer within the pocket.

Apparatus and method of controlling cutting blade travel through the use of etched features

A forceps includes a housing including a shaft. The shaft includes an end effector assembly having a pair of curved jaw members. The jaw members include an electrically conductive surface and a curved blade channel having opposing sidewalls. A cutting blade is configured for translation within the blade channel. Proximal portions of a first sidewall include incident angles of less than five degrees that engage the cutting blade and direct the blade towards a specific point of contact on the opposing sidewall of the curved blade channel.

Surgical tissue sealer

A method for manufacturing an end effector assembly is provided. The method includes grasping a gap-setting gauge between first and second jaw members moveable relative to one another about a pivot between a first, spaced-apart position and a second position proximate tissue and setting the first and second jaw members such that in the approximated position the jaw members cooperate to define a gap distance between the jaw members equivalent to the thickness of the gap-setting gauge such that when positioning tissue between the jaw members full approximation of the jaws is limited to the gap distance.

Double bevel blade tip profile for use in cutting of tissue

Methods and devices are described for the design and manufacturing of a knife with a robust double bevel cutting edge profile for use in surgical procedures. The double bevel cutting edge profile may be defined by a combination of a cutting edge angle and a radius of the cutting edge tip. In some embodiments, the cutting edge profile may be defined by a combination of a web thickness profile and a radius of the cutting edge tip. Numerical ranges are identified for each of the various geometric parameters which may define a cutting edge that provides sufficient knife sharpness over many cutting repetitions. In some embodiments a medical device, which implements a knife with a cutting edge, for use in surgical procedures is described.

Method for manufacturing vessel sealing instrument with reduced thermal spread

An electrosurgical vessel sealing instrument having a first and a second opposing jaw member at a distal end thereof, wherein each jaw member includes a jaw housing, an inner tissue engaging surface, and an insulating layer disposed therebetween. The instrument includes the ability to move the jaw members relative to one another from a first position wherein the jaw members are disposed in spaced relation relative to one another to a second position wherein the jaw members cooperate to grasp tissue. The jaws include a tissue-contacting seal plate having obverse and reverse surfaces. A series of ribs extend from the reverse surface of the seal plate into an insulating layer, which, in turn, is affixed to a jaw housing. The ribbed structure of the seal plate reduces thermal spread and edge cutting during vessel sealing procedures, leading to improved surgical outcomes.

Insulated sealing plate

Surgical forceps

SURGICAL FORCEPS A forceps (10) includes an end effector assembly having first and second jaw members. Each of the jaw members (110, 120) includes a proximal flange extending therefrom. Each of the proximal flanges defines a bifurcated configuration having first and second spaced-apart flange components. The first flange component of the first jaw member is configured to pivotably engage the second flange component of the second jaw member via a first protrusion-aperture coupling. The first flange component of the second jaw member is configured to pivotably engage the second flange component of the first jaw member via a second protrusion-aperture coupling different from the first protrusion-aperture coupling. One or both of the jaw members is pivotable relative to the other about the first and second protrusion-aperture couplings between a spaced-apart position and an approximated position for grasping tissue therebetween. 1/7 CD J =i

Method and system for manufacturing electrosurgical seal plates

A method of manufacture for an end effector assembly is provided. The method includes providing a pair of jaw members. A step of the method includes forming one or more seal plates positionable on one of the pair of jaw members. Etching a dam along a side of the one or more seal plates is a step of the method, wherein the etched dam inhibits the flow of a plastic on the one or more seal plate such that a height of the plastic with respect to the at least one seal plate during an overmolding process may be controlied. The method includes positioning the one or more seal plates on the one of the pair of jaw members; and overmolding the seal plate to one or more of the pair of jaw members.

Electrosurgical seal plates

A system for the manufacture of an end effector assembly which is configured for use with an electrosurgical instrument configured for performing an electrosurgical procedure is provided. The system includes a photolithography module that is configured to etch one or more pockets on a seal surface of the seal plate. A vacuum module is configured to raise, transfer and lower a spacer from a location remote from the pocket(s) on the seal plate to the pocket on the seal plate(s). An adhesive dispensing module is configured to dispense an adhesive into the pocket on the seal plate. An optical module is configured to monitor a volume of the adhesive dispensed within the pocket and monitor placement of the spacer within the pocket.

Methods of manufacturing jaw members of an end-effector assembly for a surgical instrument

A method of manufacturing a jaw member of an end-effector assembly includes forming one or more stress-relief cavities within a sealing plate. Each one of the one or more stress-relief cavities defines a pad portion of an electrically-conductive surface of the sealing plate. The method also includes forming a stop member on each pad portion of the electrically-conductive surface of the sealing plate, performing an overmolding operation wherein the one or more stress-relief cavities is configured to prevent force applied to a bottom surface of the sealing plate during the overmolding operation from stressing each pad portion to avoid compromising adhesion between the stop member and the electrically-conductive surface of the sealing plate.

Surgical forceps

SURGICAL FORCEPS A forceps (10), comprising: an end effector assembly (100), including: first and second jaw members (110, 120), each of the jaw members (110, 120) including a distal body portion and a proximal flange (114, 124), each proximal flange (114, 124) defining a bifurcated configuration having first and second spaced-apart flange components (132, 134), the first flange component (132) of the first jaw member (110) coupled to the second flange component (134) of the second jaw member (12) via a first pivotable engagement and the first flange component (132) of the second jaw member (120) coupled to the second flange component (134) of the first jaw member (110) via a second, different pivotable engagement, the proximal flange (114, 124) of each of the first and second jaw members (110, 120) cooperating to define a channel (158) extending longitudinally therethrough between the first and second pivotable engagements; and a knife (184) configured for reciprocation through the channel (158) between the first and second pivotable engagements to permit reciprocation of the knife (184) at least partially between the distal body portions of the first and second jaw members (110, 120).

Sealing plate having depresssions with ceramic insulation

An end effector assembly includes a pair of opposing jaw members. One or more of the jaw members includes a support base, an electrical jaw lead, a sealing plate, and a ceramic layer. The sealing plate is coupled to the electrical jaw lead and mounted to the support base. The sealing plate includes a tissue engaging surface, an opposing surface, and a series of depressions formed within the opposing surface and projecting from the tissue engaging surface. The ceramic layer is deposited atop each of the series of depressions. The combination of the depressions that project from the tissue engaging surface and their ceramic layers form a corresponding series of nonconductive stop members for controlling the separation distance between opposing jaw members when closed about tissue.

Surgical forceps

A forceps includes an end effector assembly having first and second jaw members. Each of the jaw members includes a proximal flange extending therefrom. Each of the proximal flanges defines a bifurcated configuration having first and second spaced-apart flange components. The first flange component of the first jaw member is configured to pivotably engage the second flange component of the second jaw member via a first protrusion-aperture coupling. The first flange component of the second jaw member is configured to pivotably engage the second flange component of the first jaw member via a second protrusion-aperture coupling different from the first protrusion-aperture coupling. One or both of the jaw members is pivotable relative to the other about the first and second protrusion-aperture couplings between a spaced-apart position and an approximated position for grasping tissue therebetween.

Pressure sensing sealing plate

PRESSURE SENSING SEALING PLATE Abstract An end effector assembly for use with an electrosurgical instrument is provided. The end effector assembly (100) has a pair of opposing jaw members (310, 320). One or s more of the jaw members includes a support base (316, 326), an electrical jaw lead, and a sealing plate (312, 322) coupled to the electrical jaw lead (325a, 325b). The sealing plate has a stainless steel layer and one or more piezoelectric sensors (390). The jaw member also includes an insulative plate (319', 329') disposed between the support base and the sealing plate. (1l

Method for manufacturing an electrode assembly configured for use with an electrosurgical instrument

A method for manufacturing an electrode configuration configured for use with an electrosurgical instrument is provided. A pre-assembled jaw configuration including jaw members including respective first and second electrodes is provided. One or more stop members are positioned on the first electrode. The first and second electrodes are approximated toward one another for contact therebetween so as to form an at least one indentation on the second electrode.

Surgical forceps

A forceps includes an end effector assembly having first and second jaw members. Each of the jaw members includes a proximal flange extending therefrom. Each of the proximal flanges defines a bifurcated configuration having first and second spaced-apart flange components. The first flange component of the first jaw member is configured to pivotably engage the second flange component of the second jaw member via a first protrusion-aperture coupling. The first flange component of the second jaw member is configured to pivotably engage the second flange component of the first jaw member via a second protrusion-aperture coupling different from the first protrusion-aperture coupling. One or both of the jaw members is pivotable relative to the other about the first and second protrusion-aperture couplings between a spaced-apart position and an approximated position for grasping tissue therebetween.

Multi-circuit seal plates

An end effector assembly adapted to couple to an electrosurgical instrument, the end effector assembly including a pair of opposing jaw members pivotably attached about a pivot member and moveable from a first spaced position to a second grasping position. Each jaw member includes a jaw housing and a seal plate formed on an inner surface of the jaw member including at least two seal plate segments extending along a substantial portion of the length of the jaw members. An insulating member is positioned between adjacent seal plate segments and configured to provide electrical isolation between adjacent seal plate segments. Each sealing plate segment is adapted to selectively connect to an electrosurgical energy source and form part of an electrosurgical energy delivery circuit.

セラミック絶縁を備えたくぼみを有するシーリングプレート

【課題】内視鏡的電気外科処置を実行するための装置を提供すること。 【解決手段】一対の対向する顎部材を含むエンドエフェクタアセンブリであって、該顎部材のうちの少なくとも１つは、サポートベースと、電気顎リード線と、該電気顎リード線に結合され、該サポートベースに取り付けられたシーリングプレートであって、組織係合面および対向する面と、該対向する面内に形成され、該組織係合面から突出する一連のくぼみとを含む、シーリングプレートと、該一連のくぼみの各々の上に堆積させられたセラミック層とを備え、該組織係合面から突出する該くぼみと該くぼみのそれぞれのセラミック層との組み合わせは、該一対の対向する顎部材間の分離距離を制御するために、対応する一連の非導電性ストップ部材を形成する、エンドエフェクタアセンブリ。 【選択図】図１

Sealing plate having depressions with ceramic insulation

Surgical instrument with resilient driving member and related methods of use

A forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and includes a pair of first and second jaw members. One or both of the first and second jaw members is movable relative to the other jaw member from a clamping position to an open position. A resilient member operably couples to at least one of the first and second jaw members. The resilient member is configured to bias the first and second jaw members in the clamping position and provide a closure force on tissue disposed therebetween.

Multi-circuit seal plates

An end effector assembly adapted to couple to an electrosurgical instrument, the end effector assembly including a pair of opposing jaw members pivotably attached about a pivot member and moveable from a first spaced position to a second grasping position. Each jaw member includes a jaw housing and a seal plate formed on an inner surface of the jaw member including at least two seal plate segments extending along a substantial portion of the length of the jaw members. An insulating member is positioned between adjacent seal plate segments and configured to provide electrical isolation between adjacent seal plate segments. Each sealing plate segment is adapted to selectively connect to an electrosurgical energy source and form part of an electrosurgical energy delivery circuit.

Method for manufacturing an electrode assembly configured for use with an electrosurigcal instrument

A method for manufacturing an electrode configuration configured for use with an electrosurgical instrument is provided. A pre-assembled jaw configuration including jaw members including respective first and second electrodes is provided. One or more stop members are positioned on the first electrode. The first and second electrodes are approximated toward one another for contact therebetween so as to form an at least one indentation on the second electrode.

Surgical instrument with resilient driving member and related methods of use

A forceps is provided and includes a housing having a shaft. An end effector assembly operatively connects to a distal end of the shaft and includes a pair of first and second jaw members. One or both of the first and second jaw members is movable relative to the other jaw member from a clamping position to an open position. A resilient member operably couples to at least one of the first and second jaw members. The resilient member is configured to bias the first and second jaw members in the clamping position and provide a closure force on tissue disposed therebetween.