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    Tool assembly for a surgical stapling device
    2.
    发明授权
    Tool assembly for a surgical stapling device 有权

    公开(公告)号：US11224429B2

    公开(公告)日：2022-01-18

    申请号：US17181864

    申请日：2021-02-22

    Applicant: Covidien LP

    Inventor： David C. Racenet ,  Philip Roy ,  John Beardsley ,  Lee Olson ,  Ralph Stearns ,  Clifford Emmons

    IPC: A61B17/072 ,  A61B17/068 ,  A61B17/10 ,  A61B17/00 ,  A61B17/29 ,  A61B17/32

    Abstract: A surgical device comprising a first jaw member, a second jaw member, a clamping member and a clamp apparatus is disclosed. The clamping member is slidably positioned to translate at least partially through the first jaw member. The clamping member engages the first jaw member and the second jaw member, and has a knife blade for cutting tissue. A flange of the clamping member is configured to engage a cam surface to pivot the second jaw member with respect to the first jaw member from an open position toward an approximated position. The clamp apparatus is movable from a retracted position to an advanced position for preventing a gap between proximal portions of the first jaw member and the second jaw member from exceeding a predetermined distance. The clamping member and the clamp apparatus are separately movable.

    TOOL ASSEMBLY FOR A SURGICAL STAPLING DEVICE
    3.
    发明申请
    TOOL ASSEMBLY FOR A SURGICAL STAPLING DEVICE 有权

    公开(公告)号：US20210177414A1

    公开(公告)日：2021-06-17

    申请号：US17181864

    申请日：2021-02-22

    Applicant: Covidien LP

    Inventor： David C. Racenet ,  Philip Roy ,  John Beardsley ,  Lee Olson ,  Ralph Stearns ,  Clifford Emmons

    IPC: A61B17/072 ,  A61B17/068 ,  A61B17/10

    Abstract: A surgical device comprising a first jaw member, a second jaw member, a clamping member and a clamp apparatus is disclosed. The clamping member is slidably positioned to translate at least partially through the first jaw member. The clamping member engages the first jaw member and the second jaw member, and has a knife blade for cutting tissue. A flange of the clamping member is configured to engage a cam surface to pivot the second jaw member with respect to the first jaw member from an open position toward an approximated position. The clamp apparatus is movable from a retracted position to an advanced position for preventing a gap between proximal portions of the first jaw member and the second jaw member from exceeding a predetermined distance. The clamping member and the clamp apparatus are separately movable.

    Tool assembly for a surgical stapling device
    4.
    发明授权
    Tool assembly for a surgical stapling device 有权

    公开(公告)号：US10603037B2

    公开(公告)日：2020-03-31

    申请号：US16443112

    申请日：2019-06-17

    Applicant: Covidien LP

    Inventor： David C. Racenet ,  Philip Roy ,  John Beardsley ,  Lee Olson ,  Ralph Stearns ,  Clifford Emmons

    IPC: A61B17/072 ,  A61B17/068 ,  A61B17/10 ,  A61B17/00 ,  A61B17/29 ,  A61B17/32

    Abstract: A surgical device comprising a first jaw member, a second jaw member, a clamping member and a clamp apparatus is disclosed. The clamping member is slidably positioned to translate at least partially through the first jaw member. The clamping member engages the first jaw member and the second jaw member, and has a knife blade for cutting tissue. A flange of the clamping member is configured to engage a cam surface to pivot the second jaw member with respect to the first jaw member from an open position toward an approximated position. The clamp apparatus is movable from a retracted position to an advanced position for preventing a gap between proximal portions of the first jaw member and the second jaw member from exceeding a predetermined distance. The clamping member and the clamp apparatus are separately movable.

    SURGICAL STAPLER WITH UNIVERSAL ARTICULATION AND TISSUE PRE-CLAMP
    5.
    发明申请
    SURGICAL STAPLER WITH UNIVERSAL ARTICULATION AND TISSUE PRE-CLAMP 审中-公开

    公开(公告)号：US20190209166A1

    公开(公告)日：2019-07-11

    申请号：US16354737

    申请日：2019-03-15

    Applicant: Covidien LP

    Inventor： Lee Ann Olson ,  Philip Roy ,  John W. Beardsley ,  Ralph Stearns ,  David C. Racenet ,  Clifford J. Emmons

    IPC: A61B17/068 ,  A61B17/072

    Abstract: A tool assembly for a surgical stapling device includes a channel member for supporting a staple cartridge therein and an anvil to deform a plurality of staples ejected from the staple cartridge thereagainst. The tool assembly also includes a sled which is movable to force the staples from the cartridge against the anvil to staple tissue disposed between the anvil and the staple cartridge. A dynamic clamping member is included which has a pin which movably engages the anvil and a flange which movably engages the channel assembly. The dynamic clamping member is mounted to and movable with the sled. The pin and the flange of the dynamic clamping member cooperating to oppose the forces associated with clamping and stapling tissue and also to maintain a substantially uniform gap between the anvil and the staple cartridge during stapling of the tissue.

    TOOL ASSEMBLY FOR A SURGICAL STAPLING DEVICE
    6.
    发明申请
    TOOL ASSEMBLY FOR A SURGICAL STAPLING DEVICE 审中-公开

    公开(公告)号：US20190083094A1

    公开(公告)日：2019-03-21

    申请号：US16196877

    申请日：2018-11-20

    Applicant: Covidien LP

    Inventor： David C. Racenet ,  Philip Roy ,  John Beardsley ,  Lee Olson ,  Ralph Stearns ,  Clifford Emmons

    IPC: A61B17/072 ,  A61B17/10 ,  A61B17/068 ,  A61B17/29 ,  A61B17/32 ,  A61B17/00

    Abstract: A surgical device comprising a first jaw member, a second jaw member, a clamping member and a clamp apparatus is disclosed. The clamping member is slidably positioned to translate at least partially through the first jaw member. The clamping member engages the first jaw member and the second jaw member, and has a knife blade for cutting tissue. A flange of the clamping member is configured to engage a cam surface to pivot the second jaw member with respect to the first jaw member from an open position toward an approximated position. The clamp apparatus is movable from a retracted position to an advanced position for preventing a gap between proximal portions of the first jaw member and the second jaw member from exceeding a predetermined distance. The clamping member and the clamp apparatus are separately movable.

    SURGICAL STAPLING DEVICE
    7.
    发明申请
    SURGICAL STAPLING DEVICE 审中-公开

    公开(公告)号：US20190083088A1

    公开(公告)日：2019-03-21

    申请号：US16196908

    申请日：2018-11-20

    Applicant: Covidien LP

    Inventor： David Racenet ,  Ralph Stearns ,  John Beardsley ,  Philip Roy ,  Lee Ann Olson

    IPC: A61B17/068 ,  A61B17/10 ,  A61B17/072 ,  A61B34/00 ,  A61B17/064 ,  A61B17/29 ,  A61B17/32 ,  A61B90/00

    Abstract: A surgical device is disclosed which includes a handle portion, a central body portion and a SULU. The SULU includes a proximal body portion, an intermediate pivot member and a tool assembly. The intermediate pivot member is pivotally secured to the proximal body portion about a first pivot axis and the tool assembly is pivotally secured to the intermediate pivot member about a second pivot axis which is orthogonal to the first pivot axis. The SULU includes a plurality of articulation links which are operably connected to the tool assembly by non-rigid links. The articulation links are adapted to releasably engage articulation links positioned in the central body portion. The body portion articulation links are connected to an articulation actuator which is supported for omni-directional movement to effect articulation of the tool assembly about the first and second axes. The handle portion includes a spindle and barrel assembly drive mechanism for advancing and retracting a drive member positioned in the tool assembly. In one embodiment, the tool assembly includes a cartridge assembly having a plurality of staples and an anvil assembly.

    Surgical stapler with universal articulation and tissue pre-clamp
    8.
    发明授权
    Surgical stapler with universal articulation and tissue pre-clamp 有权

    公开(公告)号：US10130360B2

    公开(公告)日：2018-11-20

    申请号：US13855166

    申请日：2013-04-02

    Applicant: Covidien LP

    Inventor： Lee Ann Olson ,  Philip Roy ,  John W. Beardsley ,  Ralph Stearns ,  David C. Racenet ,  Clifford J. Emmons

    IPC: A61B17/068 ,  A61B17/072 ,  A61B17/29 ,  A61B17/32

    Abstract: A tool assembly for a surgical stapling device includes a channel member for supporting a staple cartridge therein and an anvil to deform a plurality of staples ejected from the staple cartridge thereagainst. The tool assembly also includes a sled which is movable to force the staples from the cartridge against the anvil to staple tissue disposed between the anvil and the staple cartridge. A dynamic clamping member is included which has a pin which movably engages the anvil and a flange which movably engages the channel assembly. The dynamic clamping member is mounted to and movable with the sled. The pin and the flange of the dynamic clamping member cooperating to oppose the forces associated with clamping and stapling tissue and also to maintain a substantially uniform gap between the anvil and the staple cartridge during stapling of the tissue.

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