公开(公告)号：US11730504B2

公开(公告)日：2023-08-22

申请号：US16858914

申请日：2020-04-27

Applicant: Covidien LP

Inventor： Robert B. Stoddard ,  James S. Cunningham ,  William J. Dickhans ,  Russell D. Hempstead ,  Eric R. Larson ,  Duane E. Kerr ,  William H. Nau, Jr. ,  Anthony B. Ross ,  John J. Kappus

IPC: A61B17/29 ,  A61B17/32 ,  A61B18/00 ,  A61B18/14 ,  A61B17/00

CPC classification number: A61B17/29 ,  A61B17/2909 ,  A61B17/320068 ,  A61B18/1445 ,  A61B2017/0046 ,  A61B2017/00734 ,  A61B2017/293 ,  A61B2017/2925 ,  A61B2017/2929 ,  A61B2017/2931 ,  A61B2017/2946 ,  A61B2017/320095 ,  A61B2018/0019 ,  A61B2018/0063 ,  A61B2018/00994

Abstract: An endoscopic instrument is provided and includes a housing including an elongated shaft assembly extending distally therefrom. The elongated shaft assembly includes inner and outer shaft members. The inner and outer shaft members are removably coupled to the housing and the outer shaft member is movable with respect to the inner shaft member. An end effector is operably supported at the distal end of the outer shaft member and includes a pair of jaw members configured for treating tissue. A bushing operably couples to the inner and outer shaft members of the shaft assembly and selectively and releasably couples to the housing. The bushing includes one or more mechanical interfaces configured to engage one or more slots defined through the inner shaft member and one or more slots defined through the outer shaft member to release the inner and outer shaft members from the housing.

公开(公告)号：US11576697B2

公开(公告)日：2023-02-14

申请号：US16860360

申请日：2020-04-28

Applicant: Covidien LP

Inventor： Scott E. Frushour ,  Eric R. Larson

IPC: A61B18/08 ,  A61B17/32 ,  A61B17/00 ,  A61B17/29 ,  A61B18/14 ,  A61B34/30 ,  A61B34/35

Abstract: A surgical instrument includes a shaft defining an axis, an end effector coupled to a distal portion thereof, a fixed handle coupled to a proximal portion thereof, a drive bar, a movable handle, and a linkage. The drive bar is disposed within the shaft and operably coupled to the end effector. The movable handle is movable relative to the fixed handle between open and closed positions and is coupled to the drive bar via a first pin on the axis. The linkage includes a first end portion coupled to the movable handle via a second pin and a second end portion coupled to the shaft via a third pin on the axis. In the closed position of the movable handle, the second pin is disposed in a near-over-center position relative to the axis to reduce a force necessary to maintain the movable handle in the closed position.

公开(公告)号：US20210038308A1

公开(公告)日：2021-02-11

申请号：US17080012

申请日：2020-10-26

Applicant: Covidien LP ,  University of North Carolina at Charlotte

Inventor： William H. Nau, JR. ,  Eric R. Larson ,  Duane E. Kerr ,  Nathaniel M. Fried ,  Thomas C. Hutchens ,  Thomas W. Meiser ,  Luke A. Hardy

IPC: A61B18/22 ,  A61B17/28

Abstract: An end effector assembly for an optical surgical instrument includes a jaw member and a plurality of optical elements positioned within a cavity of the jaw member. The jaw member has a tissue contacting surface. The jaw member has a proximal portion that is configured to secure a fiber optic cable thereto such that a distal end of the fiber optical cable extends into the cavity. The plurality of optical elements are arranged in a staircase-like manner that rises towards the tissue contacting surface as the plurality of optical elements extends distally within the cavity. The plurality of optical elements is configured to direct a beam of light exiting the fiber optic cable towards the tissue contacting surface.

公开(公告)号：US20200253627A1

公开(公告)日：2020-08-13

申请号：US16858914

申请日：2020-04-27

Applicant: Covidien LP

Inventor： Robert B. Stoddard ,  James S. Cunningham ,  William J. Dickhans ,  Russell D. Hempstead ,  Eric R. Larson ,  Duane E. Kerr ,  William H. Nau, JR. ,  Anthony B. Ross ,  John J. Kappus

IPC: A61B17/29

Abstract: An endoscopic instrument is provided and includes a housing including an elongated shaft assembly extending distally therefrom. The elongated shaft assembly includes inner and outer shaft members. The inner and outer shaft members are removably coupled to the housing and the outer shaft member is movable with respect to the inner shaft member. An end effector is operably supported at the distal end of the outer shaft member and includes a pair of jaw members configured for treating tissue. A bushing operably couples to the inner and outer shaft members of the shaft assembly and selectively and releasably couples to the housing. The bushing includes one or more mechanical interfaces configured to engage one or more slots defined through the inner shaft member and one or more slots defined through the outer shaft member to release the inner and outer shaft members from the housing.

公开(公告)号：US09987075B2

公开(公告)日：2018-06-05

申请号：US14548919

申请日：2014-11-20

Applicant: COVIDIEN LP

Inventor： David J. Van Tol ,  Anthony B. Ross ,  Alexander M. Waskiewicz ,  Eric R. Larson

IPC: A61B18/14 ,  A61B18/12 ,  A61B18/00 ,  A61B17/29 ,  A61B17/32

CPC classification number: A61B18/1445 ,  A61B17/29 ,  A61B17/320092 ,  A61B18/1206 ,  A61B18/1447 ,  A61B18/1482 ,  A61B2017/2926 ,  A61B2017/2929 ,  A61B2017/2938 ,  A61B2018/00601 ,  A61B2018/0063

Abstract: A surgical device includes an elongated shaft having an end-effector assembly at a distal end thereof. The end-effector assembly includes movable first, second and third jaw members. The first and second jaw members controllably movable from a first position, wherein the first and second jaw members are disposed in spaced relation relative to the third jaw member disposed therebetween, to a second position, wherein the first, second and third jaw members cooperate to grasp tissue therebetween.

公开(公告)号：US09987034B2

公开(公告)日：2018-06-05

申请号：US14642958

申请日：2015-03-10

Applicant: COVIDIEN LP

Inventor： Anthony B. Ross ,  Robert B. Stoddard ,  James S. Cunningham ,  William J. Dickhans ,  Russell D. Hempstead ,  Eric R. Larson ,  Duane E. Kerr ,  William H. Nau, Jr. ,  Arlen K. Ward

IPC: A61B17/32 ,  A61B17/34 ,  A61B17/3211 ,  A61B17/22 ,  A61B17/00

CPC classification number: A61B17/320068 ,  A61B17/3211 ,  A61B17/3474 ,  A61B2017/00106 ,  A61B2017/22021 ,  A61B2017/320084

Abstract: The present disclosure is directed to a fluid cooled ultrasonic surgical instrument and related systems and methods of use therefor. In some embodiments, the disclosed ultrasonic surgical instrument is adapted for used within an insufflated cavity or pneumoperitoneum of a patient. The instrument includes a housing having an elongate shaft, a waveguide disposed at a distal end of the shaft, a coolant inlet port defined in an outer surface of the housing, and a coolant pump disposed within the housing and configured to move coolant from the coolant inlet port to the waveguide. During use, insufflation gas from within the pneumoperitoneum is drawn into the instrument shaft by the coolant pump, and blown over the waveguide to provide cooling. The delivery of ultrasonic energy and activation of the pump may be controlled by a processor in response to user input and waveguide temperature.

公开(公告)号：US09764166B2

公开(公告)日：2017-09-19

申请号：US14630138

申请日：2015-02-24

Applicant: COVIDIEN LP

Inventor： Robert B. Stoddard ,  Eric R. Larson

IPC: A61B17/32 ,  A61N7/00 ,  A61B17/00

CPC classification number: A61N7/00 ,  A61B17/32 ,  A61B17/320092 ,  A61B2017/00084 ,  A61B2017/00092 ,  A61B2017/320072 ,  A61B2017/320084

Abstract: An ultrasonic surgical instrument including a blade that treats tissue and a fluid control system to cool the blade by pumping cooling fluid through the blade. The blade defines a blade lumen in fluid contact with an inflow and return conduit of the fluid control system. The inflow conduit defines an open distal end positioned within the blade lumen adjacent the distal end of the blade lumen and the return conduit defines an open distal end positioned within the blade lumen adjacent the proximal end of the blade lumen. The fluid control system may further include a fluid reservoir holding the cooling fluid and an inflow pump. The inflow pump is configured to deliver the fluid from the fluid reservoir, through the inflow conduit and the blade lumen, and into return conduit.

公开(公告)号：US11654306B2

公开(公告)日：2023-05-23

申请号：US16696208

申请日：2019-11-26

Applicant: COVIDIEN LP

Inventor： Robert B. Stoddard ,  Eric R. Larson

IPC: A61N7/00 ,  A61B17/32 ,  A61B17/00

CPC classification number: A61N7/00 ,  A61B17/32 ,  A61B17/320092 ,  A61B2017/00084 ,  A61B2017/00092 ,  A61B2017/320072 ,  A61B2017/320075 ,  A61B2017/320084 ,  A61B2017/320094 ,  A61B2017/320095

Abstract: An ultrasonic surgical instrument including a blade that treats tissue and a fluid control system to cool the blade by pumping cooling fluid through the blade. The blade defines a blade lumen in fluid contact with an inflow and return conduit of the fluid control system. The inflow conduit defines an open distal end positioned within the blade lumen adjacent the distal end of the blade lumen and the return conduit defines an open distal end positioned within the blade lumen adjacent the proximal end of the blade lumen. The fluid control system may further include a fluid reservoir holding the cooling fluid and an inflow pump. The inflow pump is configured to deliver the fluid from the fluid reservoir, through the inflow conduit and the blade lumen, and into return conduit.

公开(公告)号：US11596476B2

公开(公告)日：2023-03-07

申请号：US17080012

申请日：2020-10-26

Applicant: Covidien LP ,  University of North Carolina at Charlotte

Inventor： William H. Nau, Jr. ,  Eric R. Larson ,  Duane E. Kerr ,  Nathaniel M. Fried ,  Thomas C. Hutchens ,  Thomas W. Meiser ,  Luke A. Hardy

IPC: A61B18/22 ,  A61B17/28 ,  A61B18/00 ,  A61B18/20

Abstract: An end effector assembly for an optical surgical instrument includes a jaw member and a plurality of optical elements positioned within a cavity of the jaw member. The jaw member has a tissue contacting surface. The jaw member has a proximal portion that is configured to secure a fiber optic cable thereto such that a distal end of the fiber optical cable extends into the cavity. The plurality of optical elements are arranged in a staircase-like manner that rises towards the tissue contacting surface as the plurality of optical elements extends distally within the cavity. The plurality of optical elements is configured to direct a beam of light exiting the fiber optic cable towards the tissue contacting surface.

公开(公告)号：US11000308B2

公开(公告)日：2021-05-11

申请号：US15973785

申请日：2018-05-08

Applicant: Covidien LP

Inventor： Anthony B. Ross ,  Robert B. Stoddard ,  James S. Cunningham ,  William J. Dickhans ,  Russell D. Hempstead ,  Eric R. Larson ,  Duane E. Kerr ,  William H. Nau, Jr. ,  Arlen K. Ward

IPC: A61B17/3211 ,  A61B17/34 ,  A61B17/32 ,  A61B17/00 ,  A61B17/22

Abstract: The present disclosure is directed to a fluid cooled ultrasonic surgical instrument and related systems and methods of use therefor. In some embodiments, the disclosed ultrasonic surgical instrument is adapted for used within an insufflated cavity or pneumoperitoneum of a patient. The instrument includes a housing having an elongate shaft, a waveguide disposed at a distal end of the shaft, a coolant inlet port defined in an outer surface of the housing, and a coolant pump disposed within the housing and configured to move coolant from the coolant inlet port to the waveguide. During use, insufflation gas from within the pneumoperitoneum is drawn into the instrument shaft by the coolant pump, and blown over the waveguide to provide cooling. The delivery of ultrasonic energy and activation of the pump may be controlled by a processor in response to user input and waveguide temperature.