Apparatus for endoscopic procedures
First Claim
1. An end effector, comprising:
- a mounting portion;
a first jaw member extending distally from the mounting portion, the first jaw member including a tissue engaging surface and supporting a lever assembly, the lever assembly including a lever pivotally connected to the first jaw member and pivotally movable relative to the first jaw member between an extended position and a retracted position;
a second jaw member extending distally from the mounting portion and supporting a drive beam, the drive beam being selectively engagable with the lever assembly to facilitate a pivotal movement of the second jaw member relative to the first jaw member between an unapproximated state and an approximated state; and
a fastener cartridge secured to the second jaw member and supporting a plurality of fasteners in fastener retaining slots defined in a tissue engaging surface of the fastener cartridge,the drive beam being configured to disengage from the lever assembly, to distally translate along the first jaw member and the second jaw member to approximate the first and second jaw members relative to one another, and distally translate along the fastener cartridge to fire the plurality of fasteners from the fastener retaining slots and form the plurality of fasteners against the tissue engaging surface of the first jaw member.
1 Assignment
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Accused Products
Abstract
A surgical stapling apparatus includes a handle assembly, a shaft assembly extending distally from the handle assembly, and an end effector selectively detachable from the shaft assembly. The end effector includes a first jaw member and a second jaw member. The first jaw member supports a lever that is pivotally movable relative to the first jaw member between an extended position and a retracted position. The lever is in contact with a leaf spring to spring bias the lever to the extended position. The second jaw member supports a drive beam that is selectively engagable with the lever to facilitate a pivotal movement of the second jaw member relative to the first jaw member between an unapproximated state and an approximated state.
1006 Citations
18 Claims
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1. An end effector, comprising:
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a mounting portion; a first jaw member extending distally from the mounting portion, the first jaw member including a tissue engaging surface and supporting a lever assembly, the lever assembly including a lever pivotally connected to the first jaw member and pivotally movable relative to the first jaw member between an extended position and a retracted position; a second jaw member extending distally from the mounting portion and supporting a drive beam, the drive beam being selectively engagable with the lever assembly to facilitate a pivotal movement of the second jaw member relative to the first jaw member between an unapproximated state and an approximated state; and a fastener cartridge secured to the second jaw member and supporting a plurality of fasteners in fastener retaining slots defined in a tissue engaging surface of the fastener cartridge, the drive beam being configured to disengage from the lever assembly, to distally translate along the first jaw member and the second jaw member to approximate the first and second jaw members relative to one another, and distally translate along the fastener cartridge to fire the plurality of fasteners from the fastener retaining slots and form the plurality of fasteners against the tissue engaging surface of the first jaw member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A powered surgical stapling apparatus, comprising:
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a handle assembly; a shaft assembly extending distally from the handle assembly; an end effector selectively detachable from the shaft assembly, the end effector including; a first jaw member including a tissue engaging surface and supporting a lever, the lever pivotally connected to the first jaw member and pivotally movable relative to the first jaw member between an extended position and a retracted position; a second jaw member supporting a drive beam, the drive beam being selectively engagable with the lever to facilitate a pivotal movement of the second jaw member relative to the first jaw member between an unapproximated state and an approximated state; and a fastener cartridge secured to the second jaw member and supporting a plurality of fasteners in fastener retaining slots defined in a tissue engaging surface of the fastener cartridge, the drive beam being configured to disengage from the lever, to distally translate along the first jaw member and the second jaw member to approximate the first and second jaw members relative to one another, and distally translate along the fastener cartridge to fire the plurality of fasteners from the fastener retaining slots and form the plurality of fasteners against the tissue engaging surface of the first jaw member. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A surgical stapling apparatus, comprising:
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a handle assembly; a shaft assembly extending distally from the handle assembly; an end effector selectively detachable from the shaft assembly, the end effector including; a first jaw member supporting a lever that is pivotally connected to the first jaw member and pivotally movable relative to the first jaw member between an extended position and a retracted position, the lever being in contact with a leaf spring to spring bias the lever to the extended position; and a second jaw member supporting a drive beam, the drive beam being selectively engagable with the lever to facilitate a pivotal movement of the second jaw member relative to the first jaw member between an unapproximated state and an approximated state.
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Specification