公开(公告)号：US20210100607A1

公开(公告)日：2021-04-08

申请号：US16594031

申请日：2019-10-06

Applicant: COVIDIEN LP

Inventor： STEPHEN J. STAMM ,  SUBHADEEP SAHA ,  PURVISHKUMAR H. SONI ,  JESSICA E.C. OLSON ,  ALYSSA M. SAWYER

IPC: A61B18/14

Abstract: A surgical instrument includes a housing having a rounded barrel with a distal end and proximal end configured to seat within a palm of a user. A shaft extends from the distal end of the barrel and supports an end effector at a distal end thereof including first and second jaw members. A rotating assembly is disposed on the barrel and is actuatable to rotate the jaw members. A jaw actuation assembly is disposed on the barrel and is actuatable to move the jaw members between open and closed positions. An energy activation assembly is disposed on the barrel and is actuatable to supply electrosurgical energy to the jaw members. A knife actuation assembly is disposed on the barrel and is actuatable to cut tissue disposed between the jaw members.

公开(公告)号：US20200289192A1

公开(公告)日：2020-09-17

申请号：US16354594

申请日：2019-03-15

Applicant: COVIDIEN LP

Inventor： ALYSSA M. SAWYER ,  PURVISHKUMAR H. SONI

IPC: A61B18/14 ,  A61B18/12 ,  A61B18/08 ,  A61B17/28 ,  A61B17/29

Abstract: A forceps includes a housing, an elongated shaft assembly, and a cam assembly. The housing includes a movable handle pivotally coupled to the housing. The elongated shaft assembly is coupled to the housing and extends distally to support jaw members at a distal end thereof. One or both of the jaw members is selectively moveable relative to the other jaw member between a spaced apart position for manipulating tissue and a closed position for compressing tissue therebetween. The cam assembly is supported in the housing and includes an eccentric cam cable and an eccentric cam. The eccentric cam cable is operably coupled to the movable handle and positioned to rotate the eccentric cam upon movement thereof, wherein rotation of the eccentric cam reduces an amount of force on the movable handle required to move the jaw members to the closed position to compress tissue disposed between the jaw members

公开(公告)号：US20220000542A1

公开(公告)日：2022-01-06

申请号：US17480441

申请日：2021-09-21

Applicant: COVIDIEN LP

Inventor： STEPHEN J. STAMM ,  PURVISHKUMAR H. SONI ,  ALYSSA M. SAWYER ,  SUBHADEEP SAHA ,  JESSICA E.C. OLSON

IPC: A61B18/14 ,  B23P19/04 ,  B23P6/00

Abstract: A method of disassembling a surgical instrument for reprocessing, includes accessing an interior housing of a surgical instrument to expose a slider assembly, an elongated outer shaft including a drive plate and knife assembly extending therethrough, and a torsion spring of the surgical instrument. The method further includes grasping an upper leg of the torsion spring to disengage the upper leg from a slot defined within the drive plate, disengaging the drive plate from the slider assembly, and removing the torsion spring from the slider assembly.

公开(公告)号：US20200222070A1

公开(公告)日：2020-07-16

申请号：US16244810

申请日：2019-01-10

Applicant: COVIDIEN LP

Inventor： STEPHEN J. STAMM ,  SUBHADEEP SAHA ,  PURVISHKUMAR H. SONI ,  JESSICA E.C. OLSON ,  ALYSSA M. SAWYER

IPC: A61B17/26 ,  A61B17/295 ,  A61B17/285 ,  A61B18/14

Abstract: A surgical instrument includes a housing having a movable handle operably coupled to the housing and movable relative thereto between an initial position and a compressed position. A trigger is operably coupled to the housing within a slot defined therein and movable relative to the housing and the movable handle between an un-actuated position and an actuated position. A flange is disposed on the trigger and configured to extend distally therefrom. The flange is dimensioned to cover the slot when the trigger is moved between the un-actuated and actuated positions to avoid creating a potential pinch point between the trigger and the slot.

公开(公告)号：US20190321130A1

公开(公告)日：2019-10-24

申请号：US15959747

申请日：2018-04-23

Applicant: COVIDIEN LP

Inventor： JESSICA E.C. OLSON ,  JAMES D. ALLEN, IV ,  STEPHEN J. STAMM ,  PURVISHKUMAR H. SONI ,  ALYSSA M. SAWYER

IPC: A61B90/70 ,  B08B3/04

Abstract: A cleaning fixture for a surgical instrument includes a handle receiving portion configured to receive a housing of a surgical instrument, a shaft receiving portion configured to receive a shaft and an end effector assembly of the surgical instrument, and a knife actuation assembly movably coupled to the handle receiving portion or the shaft receiving portion. The shaft receiving portion extends distally of the handle receiving portion. The knife actuation assembly is configured to selectively actuate a knife trigger assembly of the surgical instrument to advance a knife of the surgical instrument between jaw members of the end effector assembly thereof.

公开(公告)号：US20190321094A1

公开(公告)日：2019-10-24

申请号：US15960964

申请日：2018-04-24

Applicant: COVIDIEN LP

Inventor： STEPHEN J. STAMM ,  PURVISHKUMAR H. SONI ,  ALYSSA M. SAWYER ,  SUBHADEEP SAHA ,  JESSICA E.C. OLSON

IPC: A61B18/14

Abstract: A method of disassembling a surgical instrument for reprocessing, includes accessing an interior housing of a surgical instrument to expose a slider assembly, an elongated outer shaft including a drive plate and knife assembly extending therethrough, and a torsion spring of the surgical instrument. The method further includes grasping an upper leg of the torsion spring to disengage the upper leg from a slot defined within the drive plate, disengaging the drive plate from the slider assembly, and removing the torsion spring from the slider assembly.