Patents by Inventor John R. Twomey
John R. Twomey has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230146725Abstract: A tissue specimen removal device comprises a specimen bag; a flexible ring, the flexible ring configured to form a top opening of the specimen bag; a cannula assembly comprising: an inner tube portion and an outer tube portion. The device may further comprise a connector carrier, the connector carrier configured to retain at least one connector housing, the at least one connector housing comprising one or more connector portions and reside within an interior of the connector carrier, and wherein the connector carrier can be moved from a position within the cannula assembly to outside the cannula assembly.Type: ApplicationFiled: November 3, 2022Publication date: May 11, 2023Inventors: Dirk Johnson, William N. Gregg, John R. Twomey, Ryan C. Artale
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Publication number: 20230054962Abstract: A forceps includes an end effector assembly having a stop and a plurality of overmold teeth within at least one jaw member. One (or both) of the jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. One (or both) of the jaw members includes a stop molded within an insulative housing, and an insulator plate with the overmold teeth formed from plastic. The overmold teeth extend through openings within a sealing plate and protrude past the tissue sealing surface of the sealing plate. The stop primarily controls the gap distance between opposing jaw members by bearing most of an applied load and the overmold teeth assist in controlling the gap distance by bearing the remaining applied load.Type: ApplicationFiled: November 7, 2022Publication date: February 23, 2023Inventors: John R. Twomey, Dylan R. Kingsley, James D. Allen, IV, Sean T. O'Neill, Jeffrey M. Roy
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Patent number: 11504103Abstract: A tissue specimen removal device comprises a specimen bag; a flexible ring, the flexible ring configured to form a top opening of the specimen bag; a cannula assembly comprising: an inner tube portion and an outer tube portion. The device may further comprise a connector carrier, the connector carrier configured to retain at least one connector housing, the at least one connector housing comprising one or more connector portions and reside within an interior of the connector carrier, and wherein the connector carrier can be moved from a position within the cannula assembly to outside the cannula assembly.Type: GrantFiled: April 11, 2019Date of Patent: November 22, 2022Assignee: Eximis Surgical Inc.Inventors: Dirk Johnson, William N. Gregg, John R. Twomey, Ryan C. Artale
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Patent number: 11490954Abstract: A forceps includes an end effector assembly having a stop and a plurality of overmold teeth within at least one jaw member. One (or both) of the jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. One (or both) of the jaw members includes a stop molded within an insulative housing, and an insulator plate with the overmold teeth formed from plastic. The overmold teeth extend through openings within a sealing plate and protrude past the tissue sealing surface of the sealing plate. The stop primarily controls the gap distance between opposing jaw members by bearing most of an applied load and the overmold teeth assist in controlling the gap distance by bearing the remaining applied load.Type: GrantFiled: June 19, 2020Date of Patent: November 8, 2022Assignee: Covidien LPInventors: John R. Twomey, Dylan R. Kingsley, James D. Allen, IV, Sean T. O'Neill, Jeffrey M. Roy
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Patent number: 11253308Abstract: A colpotomy system includes an energy source and a uterine manipulator that is electrically coupled to the energy source. The uterine manipulator supports a colpotomy cup and extends to a conductive distal tip portion. The colpotomy cup includes a conductive surface. One or both of the conductive distal tip portion and the conductive surface of the colpotomy cup are configured to return monopolar energy to the energy source.Type: GrantFiled: April 13, 2018Date of Patent: February 22, 2022Assignee: COVIDIEN LPInventors: Nikolai D. Begg, Jason G. Weihe, James D. Allen, IV, Ansel Dow, Thomas E. Drochner, Stuart R. Hart, Michael B. Lyons, Scott J. Prior, John R. Twomey
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Patent number: 11090082Abstract: A colpotomy system includes a colpotomy cup that extends to a distal surface and defines a longitudinal axis. The colpotomy system further includes a cutter operably coupled to the colpotomy cup and configured to travel along an arcuate path defined about the distal surface of the colpotomy cup. The cutter actuatable to separate a uterus from a vagina as the cutter rotates about the longitudinal axis of the colpotomy cup.Type: GrantFiled: May 12, 2017Date of Patent: August 17, 2021Assignee: COVIDIEN LPInventors: Jason G. Weihe, James D. Allen, IV, Ansel Dow, Thomas E. Drochner, Stuart R. Hart, Michael B. Lyons, Scott J. Prior, John R. Twomey
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Publication number: 20210001443Abstract: A method of sharpening a cutting edge of a knife of a surgical instrument includes manipulating an end effector assembly of a surgical instrument such that first and second jaw members of the end effector assembly are disposed in a spaced-apart position, retaining the first and second jaw members in the spaced-apart position, advancing a knife of the surgical instrument to an extended position wherein the knife extends between the first and second jaw members, retaining the knife in the extended position, and sharpening a cutting edge of the knife.Type: ApplicationFiled: September 21, 2020Publication date: January 7, 2021Inventors: John R. Twomey, James D. Allen, IV
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Patent number: 10869674Abstract: A clip-over disposable assembly includes a switch assembly and a disposable body. The disposable body includes a first disposable member, a second disposable member including first and second wall portions, and a third disposable member. The first wall portion defines a first aperture therethrough and a first cavity configured to receive therein a first portion of the switch assembly. The third disposable member includes a third wall portion, wherein a body of the second disposable member and the third wall portion define an opening configured to allow a shaft of a hemostat-style surgical instrument to pass therethrough. The second wall portion and the third wall portion cooperatively define a chamber in communication with the opening and configured to receive therein at least a portion of the shaft of the hemostat-style surgical instrument, wherein the at least a portion of the shaft is received in the chamber from an off-axis position.Type: GrantFiled: November 6, 2017Date of Patent: December 22, 2020Assignee: COVIDIEN LPInventor: John R. Twomey
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Patent number: 10828756Abstract: A method of disassembling a surgical instrument includes obtaining a surgical instrument including a housing, an input shaft defining an axis and extending from the housing, and a paddle engaged with the input shaft and configured to pivot about the axis. The method further includes disengaging a cover plate of the paddle from a body of the paddle by providing a force to the cover plate substantially in a direction parallel to the axis and disengaging the body from the input shaft by providing a force to the body substantially in a direction parallel to the axis.Type: GrantFiled: April 24, 2018Date of Patent: November 10, 2020Assignee: COVIDIEN LPInventors: John R. Twomey, James D. Allen, IV
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Publication number: 20200315695Abstract: A forceps includes an end effector assembly having a stop and a plurality of overmold teeth within at least one jaw member. One (or both) of the jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. One (or both) of the jaw members includes a stop molded within an insulative housing, and an insulator plate with the overmold teeth formed from plastic. The overmold teeth extend through openings within a sealing plate and protrude past the tissue sealing surface of the sealing plate. The stop primarily controls the gap distance between opposing jaw members by bearing most of an applied load and the overmold teeth assist in controlling the gap distance by bearing the remaining applied load.Type: ApplicationFiled: June 19, 2020Publication date: October 8, 2020Inventors: John R. Twomey, Dylan R. Kingsley, James D. Allen, IV, Sean T. O'Neill, Jeffrey M. Roy
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Patent number: 10780544Abstract: A method of sharpening a cutting edge of a knife of a surgical instrument includes manipulating an end effector assembly of a surgical instrument such that first and second jaw members of the end effector assembly are disposed in a spaced-apart position, retaining the first and second jaw members in the spaced-apart position, advancing a knife of the surgical instrument to an extended position wherein the knife extends between the first and second jaw members, retaining the knife in the extended position, and sharpening a cutting edge of the knife.Type: GrantFiled: April 24, 2018Date of Patent: September 22, 2020Assignee: Covidien LPInventors: John R. Twomey, James D. Allen, IV
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Patent number: 10779881Abstract: A method of surgery includes grasping tissue between tissue-treating plates of first and second jaw members. One or both of the jaw members includes a bifurcated body having first and second jaw components. Each jaw component includes a tissue-treating plate portion disposed thereon. The tissue-treating plate portions cooperate to define the tissue-treating plate of the jaw member. The method further includes energizing the tissue-treating plates of the first and second jaw members for conducting energy through grasped tissue to treat grasped tissue and separating grasped and treated tissue by rotating at least one of the first and second jaw components of the at least one jaw member relative to the other from an aligned orientation, wherein the tissue-treating plate portions are substantially co-planar relative to one another, to an angled orientation, wherein the tissue-treating plate portions are angled relative to one another.Type: GrantFiled: July 24, 2018Date of Patent: September 22, 2020Assignee: COVIDIEN LPInventor: John R. Twomey
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Publication number: 20200214729Abstract: A surgical instrument includes an elongated shaft having a distal portion and a proximal portion coupled to a housing. An inner shaft member extends at least partially through the elongated shaft and is selectively movable in a longitudinal direction. An end effector is supported by the distal portion of the elongated shaft. The end effector includes upper and lower jaw members pivotally coupled to the distal portion of the elongated shaft about a pivot axis and including a pair of laterally spaced flanges. The pairs of flanges of the jaw members are arranged in an offset configuration such that one flange of the upper jaw member is positioned on a laterally exterior side of a corresponding flange of the lower jaw member, and the other flange of the upper jaw member is positioned on a laterally interior side of the other flange of the lower jaw member.Type: ApplicationFiled: March 13, 2020Publication date: July 9, 2020Inventors: James D. Allen, IV, John R. Twomey, Michael B. Lyons, Jessica E.C. Olson, Sean T. O'Neill, Grant T. Sims
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Patent number: 10702332Abstract: A forceps includes an end effector assembly having a stop and a plurality of overmold teeth within at least one jaw member. One (or both) of the jaw members is moveable relative to the other between a spaced-apart position and an approximated position for grasping tissue therebetween. One (or both) of the jaw members includes a stop molded within an insulative housing, and an insulator plate with the overmold teeth formed from plastic. The overmold teeth extend through openings within a sealing plate and protrude past the tissue sealing surface of the sealing plate. The stop primarily controls the gap distance between opposing jaw members by bearing most of an applied load and the overmold teeth assist in controlling the gap distance by bearing the remaining applied load.Type: GrantFiled: March 21, 2018Date of Patent: July 7, 2020Assignee: COVIDIEN LPInventors: John R. Twomey, Dylan R. Kingsley, James D. Allen, IV, Sean T. O'Neill, Jeffrey M. Roy
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Patent number: 10595932Abstract: An electrosurgical forceps is provided with a shaft that extends from a housing of the electrosurgical forceps. An end effector assembly operably coupled to the shaft includes a pair of first and second jaw members. One or both of the first and second jaw members is movable from an open configuration, to a clamping configuration. A knife blade assembly includes a knife blade translatable within the first and second jaw members. A knife blade lockout mechanism is in operative communication with the knife blade assembly and includes an elongated cam slot with a cam pin translatable therein from a distal end of the elongated cam slot corresponding to the knife blade lockout mechanism engaged with the knife blade assembly, to a proximal position corresponding to the knife blade lockout mechanism disengaged from the knife blade assembly.Type: GrantFiled: March 16, 2017Date of Patent: March 24, 2020Assignee: Covidien LPInventors: John R. Twomey, Edward M. Chojin
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Patent number: 10588651Abstract: A surgical instrument includes an elongated shaft having a distal portion and a proximal portion coupled to a housing. An inner shaft member extends at least partially through the elongated shaft and is selectively movable in a longitudinal direction. An end effector is supported by the distal portion of the elongated shaft. The end effector includes upper and lower jaw members pivotally coupled to the distal portion of the elongated shaft about a pivot axis and including a pair of laterally spaced flanges. The pairs of flanges of the jaw members are arranged in an offset configuration such that one flange of the upper jaw member is positioned on a laterally exterior side of a corresponding flange of the lower jaw member, and the other flange of the upper jaw member is positioned on a laterally interior side of the other flange of the lower jaw member.Type: GrantFiled: December 18, 2017Date of Patent: March 17, 2020Assignee: COVIDIEN LPInventors: James D. Allen, IV, John R. Twomey, Michael B. Lyons, Jessica E. C. Olson, Sean T. O'Neill, Grant T. Sims
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Patent number: 10582965Abstract: An endoscopic forceps includes a housing having a shaft extending therefrom for treating tissue. A longitudinal axis is defined through the shaft. An end effector assembly is operably coupled to a distal end of the shaft and includes a pair of first and second jaw members. A rotating assembly operably coupled to the shaft is configured to rotate the shaft and the end effector about the longitudinal axis. A drive assembly is configured to selectively and releasably engage the rotating assembly. Engagement of the rotating assembly with the drive assembly couples the rotating assembly to the shaft such that the shaft is rotatable about the longitudinal axis in a predetermined direction when the rotating assembly is rotated. And, disengagement of the rotating assembly from the drive assembly uncouples the rotating assembly from the shaft such that the shaft is non-rotatable about the longitudinal axis when the rotating assembly is rotated.Type: GrantFiled: May 4, 2017Date of Patent: March 10, 2020Assignee: Covidien LPInventor: John R. Twomey
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Patent number: 10499977Abstract: A method of surgery utilizing an end effector assembly having first and second jaw members defining a grasping area therebetween and a tissue-treating area therebetween. Each of the first and second jaw members defines a knife channel positioned within the grasping area and outside of the tissue-treating area. The end effector assembly is positioned such that the knife channels are positioned adjacent tissue to be removed. Thereafter, the first and/or second jaw members are moved from a spaced-apart position to an approximated position to grasp tissue therebetween, the jaw members are energized for conducting energy through tissue disposed within the tissue-treating area to treat tissue disposed within the tissue-treating area, and a knife is advanced through the knife channels to cut tissue adjacent the tissue-treating area thereby separating tissue.Type: GrantFiled: July 8, 2015Date of Patent: December 10, 2019Assignee: Covidien LPInventors: David J. Van Tol, Gary M. Couture, Robert M. Sharp, John R. Twomey, Barry J. Kaup
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Patent number: 10499976Abstract: A surgical instrument includes an end effector assembly having first and second jaw members each jaw member defining an opposed surface. The jaw members are movable between a spaced-apart position and an approximated position for grasping tissue within a grasping area. First and second tissue-treating plates are disposed on the jaw members and adapted to connect to a source of energy for treating tissue disposed within a tissue-treating. Each jaw member defines a knife channel positioned within the grasping area and outside of the tissue-treating area. A knife is selectively movable between a retracted position, wherein the knife is positioned proximally of the jaw members, and an extended position, wherein the knife extends at least partially through the knife channels of the jaw members to cut tissue positioned adjacent the tissue-treating area.Type: GrantFiled: July 8, 2015Date of Patent: December 10, 2019Assignee: Covidien LPInventors: David J. Van Tol, Gary M. Couture, Robert M. Sharp, John R. Twomey, Barry J. Kaup
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Publication number: 20190357929Abstract: A forceps includes an end effector assembly including first and second jaw members, a blade, a lever member operably coupled to the end effector, a trigger member operably coupled to the blade and defining an actuation path therealong. A trigger safety member is pivotably coupled to the lever member such that, when the lever member is disposed in an initial position, the trigger safety member is disposed in a position blocking the trigger member. When the lever member is disposed in a compressed position, the trigger safety member is disposed in a position, wherein the trigger safety member is displaced from the actuation path to permit movement of the trigger member, wherein the safety member rotates relative to the lever member as a function of movement of the lever member to block/unblock the trigger member.Type: ApplicationFiled: August 12, 2019Publication date: November 28, 2019Inventor: JOHN R. TWOMEY