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：USD859658S1

公开(公告)日：2019-09-10

申请号：US29607810

申请日：2017-06-16

Applicant: COVIDIEN LP

Designer： Jessica E. C. Olson ,  James D. Allen, IV ,  Kris Hess ,  David Michael Keffeler ,  Subhadheep Saha ,  Purvishkumar H. Soni ,  Stephen J. Stamm

公开(公告)号：US11806068B2

公开(公告)日：2023-11-07

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: A61B18/00 ,  A61B18/14

CPC classification number: A61B18/1442 ,  A61B2018/00053 ,  A61B2018/0091 ,  A61B2560/0266

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：US11642164B2

公开(公告)日：2023-05-09

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 ,  B23P6/00 ,  B23P19/04 ,  A61B17/00 ,  A61B34/30

CPC classification number: A61B18/1445 ,  B23P6/00 ,  B23P19/04 ,  A61B34/30 ,  A61B2017/00017 ,  A61B2017/00367 ,  A61B2017/00473 ,  Y10T29/49815

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：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：US11259864B2

公开(公告)日：2022-03-01

申请号：US16433473

申请日：2019-06-06

Applicant: COVIDIEN LP

Inventor： Stephen J. Stamm ,  Subhadeep Saha ,  Purvishkumar H. Soni ,  Jessica E. C. Olson ,  Alyssa M. Sawyer

IPC: A61B18/12 ,  A61B18/14 ,  A61B18/00 ,  A61B17/34

Abstract: An endoscopic bipolar forceps includes a housing having a shaft extending therefrom including an end effector assembly disposed at a distal end thereof having jaw members. A movable handle is pivotable relative to the housing from an initial position wherein the jaw members are spaced relative to one another to a compressed position wherein the jaw members are closed about tissue. A trigger assembly is pivotably coupled to the movable handle and includes a trigger operably coupled to a knife assembly having a knife, a knife drive bar and a cam pin. The trigger includes an elongated slot defined therein configured to house the cam pin for translation therein. Upon actuation of the movable handle, the trigger moves in unison with the movable handle to the compressed position and the cam pin rides within the elongated slot maintaining consistent angle between the movable handle and the trigger during movement thereof.

公开(公告)号：US20230397947A1

公开(公告)日：2023-12-14

申请号：US18210779

申请日：2023-06-16

Applicant: Covidien LP

Inventor： John A. Hammerland, III ,  William E. Robinson ,  Stephen J. Stamm

IPC: A61B18/14

CPC classification number: A61B18/1445 ,  A61B2017/2929

Abstract: A forceps includes an instrument housing, an elongated shaft assembly extending distally from the instrument housing, and a rotation knob assembly. The rotation knob assembly is supported in the instrument housing and includes a rotation knob and an inner housing. The rotation knob is coupled to the shaft assembly and positioned to rotate about the inner housing to rotate the elongated shaft assembly relative to the instrument housing. The inner housing is coupled to the instrument housing and supports electrical contacts configured to transmit electrical energy through the rotation knob assembly.

公开(公告)号：US11737811B2

公开(公告)日：2023-08-29

申请号：US16722289

申请日：2019-12-20

Applicant: Covidien LP

Inventor： John A. Hammerland ,  William E. Robinson ,  Stephen J. Stamm

IPC: A61B18/14 ,  A61B17/29 ,  A61B18/00 ,  A61B18/12

CPC classification number: A61B18/1445 ,  A61B2017/2929 ,  A61B2018/0063 ,  A61B2018/00178 ,  A61B2018/00589 ,  A61B2018/00595 ,  A61B2018/126 ,  A61B2018/1455

Abstract: A forceps includes an instrument housing, an elongated shaft assembly extending distally from the instrument housing, and a rotation knob assembly. The rotation knob assembly is supported in the instrument housing and includes a rotation knob and an inner housing. The rotation knob is coupled to the shaft assembly and positioned to rotate about the inner housing to rotate the elongated shaft assembly relative to the instrument housing. The inner housing is coupled to the instrument housing and supports electrical contacts configured to transmit electrical energy through the rotation knob assembly.

公开(公告)号：US20230248420A1

公开(公告)日：2023-08-10

申请号：US18137044

申请日：2023-04-20

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

CPC classification number: A61B18/1445 ,  B23P19/04 ,  B23P6/00 ,  A61B2017/00473

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：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.