公开(公告)号：US11272947B2

公开(公告)日：2022-03-15

申请号：US16029834

申请日：2018-07-09

Applicant: COVIDIEN LP

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

IPC: A61B18/14 ,  A61B17/3205 ,  A61B17/28 ,  A61B17/285 ,  A61B17/26 ,  A61B17/00 ,  A61B17/32 ,  A61B18/00 ,  A61B34/35

Abstract: A surgical instrument includes a housing, a movable handle, a trigger, a drive assembly operably coupled between the movable handle and an end effector assembly such that movement of the movable handle from an initial position to a compressed position manipulates the end effector assembly, and a linkage operably coupled between the trigger and a knife such that movement of the trigger from an un-actuated position to an actuated position rotates the linkage to deploy the knife relative to the end effector assembly. A drive housing of the drive assembly inhibits rotation of the linkage when the movable handle is disposed in the initial position and the trigger is disposed in the un-actuated position. The drive housing cams along a surface of the linkage to urge the linkage to rotate when the movable handle is returned towards the initial position, thereby returning the trigger towards the un-actuated position.

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：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.