Surgical apparatus and method for endoscopic surgery
First Claim
Patent Images
1. A surgical instrument comprising:
- a handle assembly including a housing;
an elongated body extending distally from the handle assembly; and
a jaw assembly adjacent a distal end of the elongated body, the jaw assembly including;
a cartridge assembly including a plurality of fasteners and a longitudinal slot defined therein;
an anvil having a fastener forming surface thereon, the cartridge assembly and anvil being mounted for movement with respect to one another between an open position and a closed position in close cooperative alignment for clamping tissue;
an actuation sled supported within the cartridge assembly, the actuation sled being movable to urge the plurality of fasteners from the cartridge;
a knife blade mounted to the actuation sled;
a drive beam including a vertical support strut and a cam member supported on the vertical support strut, the cam member being positioned to translate relative to the anvil to maintain the anvil in the closed position during firing of the fasteners, the vertical support strut being positioned to abut the actuation sled; and
a drive screw supported within the cartridge assembly, the drive screw having a threaded portion, wherein the drive beam is threadably coupled to the threaded portion of the drive screw such that rotation of the drive screw imparts longitudinal movement of the drive beam.
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Accused Products
Abstract
The present disclosure is directed to an endoscopic surgical instrument and methods for performing a diverticulum treatment. The surgical instrument includes a handle assembly, an elongated member and a jaw assembly. The elongated member is operably coupled to the distal end of the handle assembly, while the jaw assembly is operably coupled to a distal end of the elongated member. The jaw assembly includes a knife slot that is defined therewithin and is adapted to receive a knife blade to thereby cut tissue that is disposed between the jaw assembly. The jaw assembly is configured to approximate an esophageal tract and a diverticulum.
1863 Citations
24 Claims
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1. A surgical instrument comprising:
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a handle assembly including a housing; an elongated body extending distally from the handle assembly; and a jaw assembly adjacent a distal end of the elongated body, the jaw assembly including; a cartridge assembly including a plurality of fasteners and a longitudinal slot defined therein; an anvil having a fastener forming surface thereon, the cartridge assembly and anvil being mounted for movement with respect to one another between an open position and a closed position in close cooperative alignment for clamping tissue; an actuation sled supported within the cartridge assembly, the actuation sled being movable to urge the plurality of fasteners from the cartridge; a knife blade mounted to the actuation sled; a drive beam including a vertical support strut and a cam member supported on the vertical support strut, the cam member being positioned to translate relative to the anvil to maintain the anvil in the closed position during firing of the fasteners, the vertical support strut being positioned to abut the actuation sled; and a drive screw supported within the cartridge assembly, the drive screw having a threaded portion, wherein the drive beam is threadably coupled to the threaded portion of the drive screw such that rotation of the drive screw imparts longitudinal movement of the drive beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A surgical instrument comprising:
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a handle assembly including a housing and an actuator; an elongated body extending distally from the handle assembly; a motor disposed at least partially within the housing; an actuation shaft mechanically engaged with the motor; a jaw assembly adjacent a distal end of the elongated body, the jaw assembly including; a cartridge assembly including a plurality of fasteners and a longitudinal slot defined therein; an anvil having a fastener forming surface thereon, the cartridge assembly and anvil being mounted for pivotal movement with respect to one another between an open position and a closed position for clamping tissue; an actuation sled supported within the cartridge assembly, the actuation sled being movable to urge the plurality of fasteners from the cartridge; a knife blade mounted to the actuation sled; a drive beam including a vertical support strut and a cam member supported on the vertical support strut, the cam member being positioned to translate relative to the anvil to maintain the anvil in the closed position during firing of the fasteners and the vertical support strut being positioned to abut the actuation sled to translate the actuation sled; and a drive screw supported within the cartridge assembly, the drive screw having a threaded portion, wherein the drive beam is threadably coupled to the threaded portion of the drive screw such that rotation of the drive screw imparts longitudinal movement of the drive beam. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A jaw assembly comprising:
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a cartridge assembly including a plurality of fasteners and a longitudinal slot defined therein; an anvil having a fastener forming surface thereon and pivotally mounted in relation to the cartridge assembly for pivotal movement between an open position having a distal end spaced from the cartridge assembly and a closed position in close cooperative alignment with the fastener cartridge; an actuation sled supported within the cartridge assembly, the actuation sled being movable to urge the plurality of fasteners from the cartridge; a knife blade pivotally mounted to the actuation sled for pivotal movement in relation to the sled between a closed position in which the knife blade is disposed within the actuation sled and a deployed position in which the knife blade extends through the longitudinal slot; and a drive beam including a vertical support strut and a cam member supported on the vertical support strut, the cam member being positioned to translate relative to the anvil to maintain the anvil in the closed position during firing of the fasteners and the vertical support strut being positioned to abut the actuation sled and the knife blade to translate the actuation sled and to pivot the knife blade from the closed position into the deployed position. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification