公开(公告)号：US20210228263A1

公开(公告)日：2021-07-29

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

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：US11007003B2

公开(公告)日：2021-05-18

申请号：US15354183

申请日：2016-11-17

Applicant: COVIDIEN LP

Inventor： James D. Allen, IV ,  Craig V. Krastins ,  Jessica E. C. Olson ,  Stephen J. Stamm ,  Victor K. Appel ,  Purvishkumar H. Soni ,  Ross Tichota

IPC: A61B18/14 ,  A61B34/35 ,  A61B17/29 ,  A61B17/28 ,  A61B18/00 ,  A61B90/00

Abstract: A surgical instrument includes a housing, a shaft extending distally from the housing, an end effector assembly disposed at a distal end of the shaft, a knife slidably disposed within the shaft, a movable handle operably coupled to the housing, a trigger operably coupled to the housing, a drive assembly operably coupled between the movable handle and the end effector assembly such that movement of the movable handle manipulates the end effector assembly, and a linkage operably coupled between the trigger and the knife such that movement of the trigger deploys the knife. In an initial position of the movable handle, a portion of a drive housing of the drive assembly intersects a path of movement of the linkage to inhibit movement of the linkage, thereby inhibiting actuation of the trigger.

公开(公告)号：US20200237433A1

公开(公告)日：2020-07-30

申请号：US16261759

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

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 biasing member. The biasing member is disposed about the knife and configured to resiliently bias the knife toward a retracted position.

公开(公告)号：US09918781B2

公开(公告)日：2018-03-20

申请号：US14719475

申请日：2015-05-22

Applicant: COVIDIEN LP

Inventor： Craig V. Krastins ,  James D. Allen, IV ,  Stephen J. Stamm ,  Jessica E. C. Olson ,  Jason G. Weihe

IPC: A61B17/29 ,  A61B18/14 ,  A61B17/26 ,  A61B17/3205 ,  A61B17/285 ,  A61B90/00 ,  A61B18/00 ,  A61B17/00

CPC classification number: A61B18/1445 ,  A61B17/26 ,  A61B17/285 ,  A61B17/29 ,  A61B17/2909 ,  A61B17/3205 ,  A61B90/03 ,  A61B2017/00353 ,  A61B2017/00424 ,  A61B2017/2916 ,  A61B2017/292 ,  A61B2017/2925 ,  A61B2017/2926 ,  A61B2017/2936 ,  A61B2017/2947 ,  A61B2018/00327 ,  A61B2018/1455

Abstract: A surgical instrument includes a housing, a shaft extending from the housing, and end effector, a drive plate, and a knife member. The shaft defines a rectangular configuration. The end effector includes first and second jaw members coupled to one another via a pivot pin extending between long sides of the shaft and movable about the pivot pin between spaced-apart and approximated positions. The drive plate is configured such that translation of the drive plate through the shaft and relative to the end effector assembly pivots the jaw members. The drive plate defines surfaces that are parallel to the long sides of the shaft. The knife member is configured to translate through the shaft and relative to the end effector assembly between retracted and extended positions. The knife member defines surfaces that are parallel to the surfaces of the drive plate and the long sides of the shaft.

公开(公告)号：US12295641B2

公开(公告)日：2025-05-13

申请号：US17360281

申请日：2021-06-28

Applicant: Covidien LP

Inventor： Craig V. Krastins

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

Abstract: An electrosurgical forceps includes first and second shaft members each having a jaw member disposed at a distal end thereof and configured to rotate about a pivot to move the jaw members between an open position and a closed position, the first and second shaft members defining a longitudinal axis therebetween. A nerve monitoring probe is operably associated with one of the shaft members and is selectively movable relative to the longitudinal axis between a first, at rest position wherein the nerve monitoring probe is aligned with the longitudinal axis and a second, deployed position wherein the nerve monitoring probe is positioned at an angle relative to the longitudinal axis for nerve monitoring.

公开(公告)号：US20250032171A1

公开(公告)日：2025-01-30

申请号：US18914625

申请日：2024-10-14

Applicant: Covidien LP

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

IPC: A61B18/14 ,  A01K1/00 ,  A01K1/02 ,  A01K1/035 ,  A61B17/32 ,  A61B17/3201 ,  A61B18/00 ,  A61B18/12 ,  A61B90/00 ,  B60P3/04 ,  B60R3/02

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：US20230248418A1

公开(公告)日：2023-08-10

申请号：US18129262

申请日：2023-03-31

Applicant: Covidien LP

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

IPC: A61B18/14 ,  A61B18/12

CPC classification number: A61B18/1442 ,  A61B18/1206 ,  A61B2018/1455 ,  A61B2017/00367

Abstract: A forceps includes shaft members each having a jaw member disposed at a distal end thereof and configured move the jaw members between open and closed position. A knife deployment mechanism includes a trigger moveable along a longitudinal axis to deploy a knife between retracted and extended positions between the jaw members, the knife deployment mechanism including links that cooperate to actuate the knife. A knife kickout mechanism is pivotably coupled to one link and is configured to engage a ramp disposed in a shaft member upon approximation of the shaft members, the knife kickout is configured to cooperate with the links to urge the knife back to an at rest position upon the opening of the shaft members.

公开(公告)号：US11628008B2

公开(公告)日：2023-04-18

申请号：US16994278

申请日：2020-08-14

Applicant: Covidien LP

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

IPC: A61B18/14 ,  A61B18/12 ,  A61B17/00 ,  A61B18/00 ,  A61B17/285 ,  A61B90/00 ,  A61B17/072

Abstract: A forceps includes shaft members each having a jaw member disposed at a distal end thereof and configured move the jaw members between open and closed position. A knife deployment mechanism includes a trigger moveable along a longitudinal axis to deploy a knife between retracted and extended positions between the jaw members, the knife deployment mechanism including links that cooperate to actuate the knife. A knife kickout mechanism is pivotably coupled to one link and is configured to engage a ramp disposed in a shaft member upon approximation of the shaft members, the knife kickout is configured to cooperate with the links to urge the knife back to an at rest position upon the opening of the shaft members.

公开(公告)号：US11617612B2

公开(公告)日：2023-04-04

申请号：US16886696

申请日：2020-05-28

Applicant: Covidien LP

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

IPC: A61B18/14 ,  A61B18/12 ,  A61B17/00 ,  A61B18/00 ,  A61B17/285 ,  A61B90/00

Abstract: 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：US11607267B2

公开(公告)日：2023-03-21

申请号：US16435770

申请日：2019-06-10

Applicant: COVIDIEN LP

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

IPC: A61B18/14 ,  A61B18/00 ,  A61B17/00 ,  A61B17/28

Abstract: An electrosurgical forceps includes first and second shaft members pivotably coupled to one another 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 proximal end portion of the second shaft member may be pivoted against a resilient bias of a spring element to apply a predetermined clamping pressure on tissue and ultimately engage an activation switch to delivery electrosurgical energy to the clamped tissue.