公开(公告)号：US20210022791A1

公开(公告)日：2021-01-28

申请号：US17065033

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：US20220183744A1

公开(公告)日：2022-06-16

申请号：US17122062

申请日：2020-12-15

Applicant: Covidien LP

Inventor： Stephen J. Stamm ,  Purvishkumar H. Soni ,  Benjamin R. Arts ,  Alyssa M. Sawyer ,  Jessica E.C. Olson ,  Amir Roomi ,  Scott N. Lacosta ,  Terry M. Duffin ,  Mark E. Renner ,  John A. Hammerland, III ,  Michelle Esponda

IPC: A61B18/14

Abstract: A surgical instrument includes a movable handle movable relative a housing to manipulate an end effector assembly, and a latch assembly. The latch assembly includes a latch arm including a latch post, and a latch track defining an entry path, a latching path, a saddle, an un-latching path, and a return path. The latch post moves through the entry path, the latching path, and into the saddle upon movement of the movable handle from an un-actuated position to an over-actuated position and back to an actuated position to lock the movable handle. The latch post moves from the saddle through the un-latching path and the return path upon movement of the movable handle from actuated position to the over-actuated position and back to the un-actuated position. The return path includes a ramped surface configured to inhibit reverse travel of the latch post into the return path.

公开(公告)号：US11684407B2

公开(公告)日：2023-06-27

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

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

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：US20210267668A1

公开(公告)日：2021-09-02

申请号：US17321653

申请日：2021-05-17

Applicant: Covidien LP

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

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

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：US20240350158A1

公开(公告)日：2024-10-24

申请号：US18757674

申请日：2024-06-28

Applicant: Covidien LP

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

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

CPC classification number: A61B17/282 ,  A61B17/3205 ,  A61B18/1445 ,  A61B2017/00526 ,  A61B17/29 ,  A61B2017/292 ,  A61B2017/2936 ,  A61B17/295 ,  A61B2018/0063 ,  A61B2018/1455 ,  A61B2090/031 ,  Y10T29/49826

Abstract: 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：US20220183746A1

公开(公告)日：2022-06-16

申请号：US17122144

申请日：2020-12-15

Applicant: Covidien LP

Inventor： Stephen J. Stamm ,  Purvishkumar H. Soni ,  Benjamin R. Arts ,  Alyssa M. Sawyer ,  Jessica E.C. Olson ,  Amir Roomi ,  Scott N. Lacosta ,  Terry M. Duffin ,  Mark E. Renner ,  John A. Hammerland, III ,  Michelle Esponda

IPC: A61B18/14

Abstract: A surgical instrument includes a housing, a shaft extending distally from the housing, an end effector assembly at a distal end portion of the shaft, and a drive assembly. The drive assembly includes a movable handle, a carriage operably coupled to the movable handle, an inner drive operably coupled to the end effector assembly, and a spring assembly operably coupling the carriage and the inner drive. The spring assembly includes inner and outer coil springs arranged in a nested configuration. Initial actuation of the movable handle slides the carriage such that the spring assembly transfers the sliding of the carriage into translation of the inner drive to apply a jaw force by the end effector assembly. Subsequent actuation of the movable handle slides the carriage to compress the spring assembly to substantially maintain a position of the inner drive, thereby controlling the jaw force.

公开(公告)号：US20200214729A1

公开(公告)日：2020-07-09

申请号：US16817935

申请日：2020-03-13

Applicant: Covidien LP

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

IPC: A61B17/28 ,  A61B17/3205 ,  A61B18/14

Abstract: 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：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：US20230050248A1

公开(公告)日：2023-02-16

申请号：US17398547

申请日：2021-08-10

Applicant: Covidien LP

Inventor： Stephen J. Stamm ,  Jessica E.C. Olson ,  Michelle Esponda ,  Scott N. Lacosta ,  Amir Roomi

IPC: A61B18/14 ,  A61B90/00

Abstract: A surgical instrument includes a housing, a shaft having a proximal end portion disposed within the housing, and an end effector assembly supported at a distal end portion of the shaft distally-spaced from the housing. A bobbin includes a body, a proximal rim, and a distal cylinder. The bobbin is disposed about the shaft such that at least one protrusion of the shaft is captured within a track defined within the distal cylinder. The bobbin is configured for positioning within the housing such that the body extends through a shaft aperture of a partition of the housing with the proximal rim disposed on a proximal side of the partition and the distal cylinder disposed within an interior cavity defined between the partition and a distal end of the housing on a distal side of the partition, thereby rotatably supporting the proximal end portion of the shaft within the housing.

公开(公告)号：US20220183745A1

公开(公告)日：2022-06-16

申请号：US17122113

申请日：2020-12-15

Applicant: Covidien LP

Inventor： Stephen J. Stamm ,  Purvishkumar H. Soni ,  Benjamin R. Arts ,  Alyssa M. Sawyer ,  Jessica E.C. Olson ,  Amir Roomi ,  Scott N. Lacosta ,  Terry M. Duffin ,  Mark E. Renner ,  John A. Hammerland, III ,  Michelle Esponda

IPC: A61B18/14

Abstract: A surgical instrument includes a housing and a trigger assembly. The trigger assembly includes a trigger including a drive portion and a manipulation portion, a rocker, a linkage, and a slider. The trigger is pivotably coupled to the housing such that the drive and manipulation portions are moved in different directions in response to actuation of the trigger. The drive portion of the trigger is pivotably coupled to the rocker. The linkage is pivotably coupled to the rocker and the housing at opposing end portions thereof. The slider is pivotably coupled to the rocker and operably coupled to the deployable component. Actuation of the manipulation portion of the trigger moves the drive portion of the trigger distally to thereby urge the rocker distally, pivot the linkage about the second end portion thereof, and slide the slider distally to deploy the deployable component distally.