公开(公告)号：US11490920B2

公开(公告)日：2022-11-08

申请号：US17038308

申请日：2020-09-30

Applicant: Covidien LP

Inventor： Jason L. Craig ,  Ryan C. Artale ,  Thomas W. Meiser ,  Roland Jeffrey Wyatt

IPC: A61B17/29 ,  A61B17/32 ,  A61B17/295 ,  A61B17/28 ,  A61B90/00 ,  G10K11/22 ,  A61B17/00

Abstract: A surgical instrument includes a housing, an end effector, a movable handle, and a drive assembly. The movable handle includes first and second cantilever spring arms and is movable relative to the housing between a spaced-apart position and an approximated position. The first cantilever spring arm is flexed upon movement of the movable handle from the spaced-apart position towards the approximated position to bias the movable handle towards the spaced-apart position. The drive assembly is operably coupled between the movable handle and the end effector such that movement of the movable handle from the spaced-apart position towards the approximated position moves the end effector from an open position towards a clamping position for clamping tissue. The second cantilever spring arm is flexed upon application of a threshold pressure to tissue clamped by the end effector to control an amount of pressure applied to tissue clamped by the end effector.

公开(公告)号：US20210007771A1

公开(公告)日：2021-01-14

申请号：US17038308

申请日：2020-09-30

Applicant: Covidien LP

Inventor： Jason L. Craig ,  Ryan C. Artale ,  Thomas W. Meiser ,  Roland Jeffrey Wyatt

IPC: A61B17/32 ,  A61B17/29 ,  A61B17/295 ,  A61B90/00 ,  G10K11/22

Abstract: A surgical instrument includes a housing, an end effector, a movable handle, and a drive assembly. The movable handle includes first and second cantilever spring arms and is movable relative to the housing between a spaced-apart position and an approximated position. The first cantilever spring arm is flexed upon movement of the movable handle from the spaced-apart position towards the approximated position to bias the movable handle towards the spaced-apart position. The drive assembly is operably coupled between the movable handle and the end effector such that movement of the movable handle from the spaced-apart position towards the approximated position moves the end effector from an open position towards a clamping position for clamping tissue. The second cantilever spring arm is flexed upon application of a threshold pressure to tissue clamped by the end effector to control an amount of pressure applied to tissue clamped by the end effector.

公开(公告)号：US10792064B2

公开(公告)日：2020-10-06

申请号：US15670101

申请日：2017-08-07

Applicant: COVIDIEN LP

Inventor： Jason L. Craig ,  Ryan C. Artale ,  Thomas W. Meiser ,  Roland Jeffrey Wyatt

IPC: A61B17/32 ,  A61B17/29 ,  A61B17/295 ,  A61B90/00 ,  A61B17/28 ,  A61B17/00 ,  G10K11/22

Abstract: A surgical instrument includes a housing, an end effector, a movable handle, and a drive assembly. The movable handle includes first and second cantilever spring arms and is movable relative to the housing between a spaced-apart position and an approximated position. The first cantilever spring arm is flexed upon movement of the movable handle from the spaced-apart position towards the approximated position to bias the movable handle towards the spaced-apart position. The drive assembly is operably coupled between the movable handle and the end effector such that movement of the movable handle from the spaced-apart position towards the approximated position moves the end effector from an open position towards a clamping position for clamping tissue. The second cantilever spring arm is flexed upon application of a threshold pressure to tissue clamped by the end effector to control an amount of pressure applied to tissue clamped by the end effector.