公开(公告)号：US12053230B2

公开(公告)日：2024-08-06

申请号：US16736191

申请日：2020-01-07

申请人： Covidien LP

发明人： Craig Krastins ,  Daniel W. Mercier ,  Grant T. Sims

IPC分类号： A61B18/12 ,  A61B17/29 ,  A61B18/14 ,  A61B17/00 ,  A61B18/00 ,  A61B18/08

CPC分类号： A61B18/1445 ,  A61B17/29 ,  A61B2017/00526 ,  A61B2017/2902 ,  A61B2017/2925 ,  A61B2018/00601 ,  A61B2018/0063 ,  A61B2018/00916 ,  A61B18/085 ,  A61B2018/1455

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

公开(公告)号：US11877790B2

公开(公告)日：2024-01-23

申请号：US16736160

申请日：2020-01-07

申请人： Covidien LP

发明人： Craig Krastins ,  Daniel W. Mercier ,  Grant T. Sims

IPC分类号： A61B18/14 ,  A61B18/00

CPC分类号： A61B18/1445 ,  A61B2018/00589 ,  A61B2018/00595 ,  A61B2018/00916

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

公开(公告)号：US11779386B2

公开(公告)日：2023-10-10

申请号：US16850059

申请日：2020-04-16

申请人： Covidien LP

发明人： Monte S. Fry ,  Grant T. Sims ,  Robert F. Mccullough, Jr.

IPC分类号： A61B18/12 ,  A61B18/14 ,  A61B17/00 ,  B29C69/00 ,  A61B17/29 ,  A61B18/00

CPC分类号： A61B18/1445 ,  A61B2017/00526 ,  A61B2017/2911 ,  A61B2018/0063 ,  A61B2018/126 ,  A61B2018/1455 ,  B29C69/00

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

公开(公告)号：US20230094871A1

公开(公告)日：2023-03-30

申请号：US17953559

申请日：2022-09-27

申请人： Covidien LP

发明人： Grant T. Sims ,  William R. Whitney ,  Jason G. Weihe ,  James D. Allen, IV ,  Jason T. Sanders ,  Alyssa M. Sawyer ,  Curtis M. Siebenaller

IPC分类号： A61B18/14

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

公开(公告)号：US11172980B2

公开(公告)日：2021-11-16

申请号：US15975928

申请日：2018-05-10

申请人： COVIDIEN LP

发明人： Kelley D. Goodman ,  David Michael Keffeler ,  Craig V. Krastins ,  Jennifer E. Lee ,  Robert F. McCullough ,  Daniel W. Mercier ,  Grant T. Sims

IPC分类号： A61B18/14 ,  B23K26/352 ,  B23K26/00 ,  B23K26/32 ,  B23K26/30 ,  A61B18/00 ,  A61B17/00 ,  A61B34/35 ,  B23K101/20

摘要： A knife configured for use with an electrosurgical forceps having curved jaw members and a method of manufacturing the same. The knife includes a distal body having an inner side and an outer side, a first etching on the outer side of the distal body defining a distal cutting edge and a second etching on the outer side of the distal body extending along a portion of a length of the distal body to define relatively protruded and relatively recessed surfaces extending along a portion of the length of the distal body on the outer side thereof.

公开(公告)号：US20210322088A1

公开(公告)日：2021-10-21

申请号：US16850045

申请日：2020-04-16

申请人： Covidien LP

发明人： Monte S. Fry ,  Grant T. Sims ,  Robert F. Mccullough, JR.

IPC分类号： A61B18/14

摘要： An end effector assembly includes a pair of opposing jaw members, one or both of the jaw members having a support base and an electrical jaw lead adapted to operably connect to an electrosurgical generator. A sealing plate is operably coupled to the support base and includes: an upper plate having an outer peripheral edge that extends therefrom and that defines a cavity configured to receive a lower plate; and a series of grooves defined within the upper plate and projecting therethrough to expose the lower plate. One or both of the upper plate or the lower plate is operably coupled to the electrical lead.

公开(公告)号：US20210282838A1

公开(公告)日：2021-09-16

申请号：US16886687

申请日：2020-05-28

申请人： Covidien LP

发明人： Jennifer L. Rich ,  Craig V. Krastins ,  Kelley D. Goodman ,  Daniel W. Mercier ,  Grant T. Sims

IPC分类号： A61B18/14

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

公开(公告)号：US20210205004A1

公开(公告)日：2021-07-08

申请号：US16736191

申请日：2020-01-07

申请人： Covidien LP

发明人： Craig Krastins ,  Daniel W. Mercier ,  Grant T. Sims

IPC分类号： A61B18/14 ,  A61B17/29

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

公开(公告)号：US10588651B2

公开(公告)日：2020-03-17

申请号：US15844821

申请日：2017-12-18

申请人： COVIDIEN LP

发明人： James D. Allen, IV ,  John R. Twomey ,  Michael B. Lyons ,  Jessica E. C. Olson ,  Sean T. O'Neill ,  Grant T. Sims

IPC分类号： A61B17/295 ,  A61B17/28 ,  A61B18/14 ,  A61B17/3205 ,  A61B17/29 ,  A61B90/00 ,  A61B17/00 ,  A61B18/00

摘要： 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.

公开(公告)号：US10524874B2

公开(公告)日：2020-01-07

申请号：US15679587

申请日：2017-08-17

申请人： COVIDIEN LP

发明人： Chase Collings ,  Grant T. Sims ,  Jeffrey R. Townsend

IPC分类号： A61B17/28 ,  A61B90/00 ,  A61B18/14 ,  A61B17/285 ,  A61B18/08 ,  A61B18/00

摘要： A forceps includes a pair of shafts each having a jaw member disposed at a distal end thereof. One (or both) of the shafts is moveable relative to the other about a pivot pin between a spaced-apart position and an approximated position to move the jaw members between an open position and a closed position. A knife assembly includes a knife blade mechanically keyed to the pivot pin and moveable between an initial position, wherein the knife blade is disposed within one of the jaw members, and an extended position, wherein the knife blade extends between the jaw members. An actuator arm(s) is mechanically keyed to the pivot pin and extends therefrom. The actuator arm(s) is moveable between an un-actuated position and an actuated position to rotate the pivot pin relative to the jaw members to move the knife blade between the initial position and the extended position.