公开(公告)号：US12127784B2

公开(公告)日：2024-10-29

申请号：US17227515

申请日：2021-04-12

Applicant: Covidien LP

Inventor： Grant T. Sims ,  Benjamin R. Arts ,  Kelley D. Goodman ,  David Michael Keffeler ,  Craig V. Krastins ,  Jennifer E. Lee ,  Robert F. McCullough, Jr. ,  Daniel W. Mercier

IPC: A61B18/14 ,  A61B18/12 ,  A61B18/00 ,  A61B90/00

CPC classification number: A61B18/1445 ,  A61B18/12 ,  A61B18/1233 ,  A61B2018/00297 ,  A61B2018/00601 ,  A61B2018/1412 ,  A61B2018/1455 ,  A61B2018/146 ,  A61B2090/034

Abstract: An electrosurgical forceps includes first and second shaft members pivotably coupled to one another via a pivot member such that pivoting of the first and second shaft members between spaced-apart and approximated positions pivots jaw members thereof between open and closed positions. A knife is translatable between retracted and extended positions. A knife deployment mechanism is operably coupled to the first shaft member and includes at least one trigger and at least one linkage coupling the at least one trigger with the knife such that pivoting of the at least one trigger relative to the first shaft member translates the knife between the retracted and extended positions. A knife lockout biased towards a locked position inhibits distal translation of the knife. The knife lockout is movable from the locked position to an unlocked position upon approximation of the jaw members to permit distal translation of the knife.

公开(公告)号：US20230371999A1

公开(公告)日：2023-11-23

申请号：US18227915

申请日：2023-07-29

Applicant: Covidien LP

Inventor： Craig V. Krastins ,  James D. Allen, IV ,  Jessica E.C. Olson ,  Jason G. Weihe ,  Purvish Soni

IPC: A61B18/12 ,  A61B18/14 ,  A61B17/29 ,  A61B90/00 ,  A61B17/26 ,  A61B17/02 ,  A61B17/32 ,  A61B17/00 ,  A61B18/00 ,  A61B17/295

CPC classification number: A61B18/12 ,  A61B18/1485 ,  A61B17/29 ,  A61B90/03 ,  A61B18/1445 ,  A61B17/26 ,  A61B2017/2925 ,  A61B17/0218 ,  A61B2017/2936 ,  A61B2017/320044 ,  A61B2017/00424 ,  A61B2018/00928 ,  A61B2018/0091 ,  A61B2017/00353 ,  A61B17/295 ,  A61B2018/00607 ,  A61B2017/292 ,  A61B2018/00184 ,  A61B2017/2912 ,  A61B18/1447 ,  A61B2017/2926 ,  A61B2018/1455 ,  A61B2018/00327 ,  A61B2017/00526 ,  A61B2017/2919

Abstract: A surgical instrument includes a housing, a shaft extending therefrom, an end effector assembly supported by the shaft, a movable handle, and a drive assembly. The drive assembly includes a translatable drive member for actuating the end effector assembly, and a torsion spring including first and second legs. The first leg is configured to translate through the housing in response to movement of the movable handle relative to the housing. The second leg is configured to translate through the housing in cooperation with the first leg to move the drive member longitudinally when a force acting on the drive member is less than a threshold force, and to remain in fixed position, thereby tensioning the torsion spring and retaining the drive member in fixed position when the force acting on the drive member is equal to or exceeds the threshold force.

公开(公告)号：US20230088000A1

公开(公告)日：2023-03-23

申请号：US17994449

申请日：2022-11-28

Applicant: Covidien LP

Inventor： Grant T. Sims ,  Kelley D. Goodman ,  Craig V. Krastins ,  Robert F. McCullough, JR. ,  Daniel W. Mercier ,  Jennifer L. Rich

IPC: A61B18/14

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

公开(公告)号：US11510725B2

公开(公告)日：2022-11-29

申请号：US16262389

申请日：2019-01-30

Applicant: COVIDIEN LP

Inventor： Grant T. Sims ,  Kelley D. Goodman ,  Craig V. Krastins ,  Robert F. McCullough, Jr. ,  Jennifer L. Rich ,  Daniel W. Mercier

IPC: A61B18/14 ,  A61B18/00

Abstract: An electrosurgical forceps includes a pair of first and second shaft members pivotably coupled to one another, an end effector assembly coupled to the pair of first and second shaft members, a knife, and a knife deployment mechanism. The knife deployment mechanism has one or more safety features that resist an inadvertent deployment of the knife.

公开(公告)号：US11376062B2

公开(公告)日：2022-07-05

申请号：US16158951

申请日：2018-10-12

Applicant: Covidien LP

Inventor： Grant T. Sims ,  Benjamin R. Arts ,  Kelley D. Goodman ,  David M. Keffeler ,  Craig V. Krastins ,  Robert F. McCullough, Jr. ,  Daniel W. Mercier ,  Jennifer L. Rich

IPC: A61B18/14 ,  A61B18/12 ,  A61B90/00 ,  A61B17/3201 ,  A61B18/00 ,  A61B17/32

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

公开(公告)号：US11350982B2

公开(公告)日：2022-06-07

申请号：US16210218

申请日：2018-12-05

Applicant: COVIDIEN LP

Inventor： Grant T. Sims ,  Kelley D. Goodman ,  Craig V. Krastins ,  Robert F. Mccullough, Jr. ,  Jennifer L. Rich ,  Daniel W. Mercier

IPC: A61B18/14 ,  A61B18/08 ,  A61B18/00 ,  A61B18/12

Abstract: An electrosurgical forceps includes first and second shaft members pivotably coupled to one another via a pivot member such that pivoting of the first and second shaft members between spaced-apart and approximated positions pivots jaw members thereof between open and closed positions. A knife is translatable between retracted and extended positions. The knife has a stop to prevent distal movement of the knife beyond the extended position.

公开(公告)号：US20220071690A1

公开(公告)日：2022-03-10

申请号：US17527049

申请日：2021-11-15

Applicant: Covidien LP

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

IPC: A61B18/14 ,  B23K26/352 ,  B23K26/00 ,  B23K26/32 ,  B23K26/30

Abstract: 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：US20210077178A1

公开(公告)日：2021-03-18

申请号：US17014002

申请日：2020-09-08

Applicant: Covidien LP

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

IPC: A61B18/14

Abstract: An electrosurgical instrument includes at least one shaft member, an end effector assembly extending distally from the at least one shaft member, and a heat pipe. The end effector assembly includes first and second jaw members, each including an electrically-conductive tissue-contacting surface. At least one of the first or second jaw members is movable relative to the other about a pivot between a spaced-apart position and an approximated position for grasping tissue between the electrically-conductive tissue-contacting surfaces. The heat pipe includes a proximal body portion and a flattened distal portion. The proximal body portion extends through at least a portion of the at least one shaft member, and the flattened distal portion extends through at least a portion of the first jaw member. The heat pipe is configured to facilitate drawing heat proximally from the end effector assembly.

公开(公告)号：US20210022790A1

公开(公告)日：2021-01-28

申请号：US17065010

申请日：2020-10-07

Applicant: Covidien LP

Inventor： Craig V. Krastins ,  James D. Allen, IV ,  Jessica E.C. Olson ,  Jason G. Weihe ,  Purvish Soni

IPC: A61B18/12 ,  A61B90/00 ,  A61B17/26 ,  A61B17/29 ,  A61B18/14

Abstract: A surgical instrument includes a housing, a shaft extending therefrom, an end effector assembly supported by the shaft, a movable handle, and a drive assembly. The drive assembly includes a translatable drive member for actuating the end effector assembly, and a torsion spring including first and second legs. The first leg is configured to translate through the housing in response to movement of the movable handle relative to the housing. The second leg is configured to translate through the housing in cooperation with the first leg to move the drive member longitudinally when a force acting on the drive member is less than a threshold force, and to remain in fixed position, thereby tensioning the torsion spring and retaining the drive member in fixed position when the force acting on the drive member is equal to or exceeds the threshold force.

公开(公告)号：USD854684S1

公开(公告)日：2019-07-23

申请号：US29606836

申请日：2017-06-08

Applicant: Covidien LP

Designer： Grant T. Sims ,  Daniel W. Mercier ,  Craig V. Krastins ,  Duane E. Kerr ,  Kelley D. Goodman ,  Jennifer E. Lee ,  Robert F. McCullough, Jr.