Surgical apparatus
First Claim
1. A surgical stapling apparatus, comprising:
- an actuating device including an elongated shaft;
a tool assembly disposed on a distal end of the shaft, the tool assembly including a first jaw member supporting a cartridge assembly having a plurality of pushers, a plurality of fasteners and a sled positioned to sequentially contact the plurality of pushers to eject the plurality of fasteners from the cartridge assembly and a second jaw member supporting an anvil, the first jaw member being movable in relation to the second jaw member between spaced and approximated positions;
a sled pusher assembly including a sled pusher having a distal end configured to engage the sled of the cartridge assembly; and
a drive beam assembly including a latch assembly and an I-beam, the latch assembly having a latch releasably coupled to the sled pusher assembly, and the I-beam having a sidewall defining a notch, the sled pusher received within the notch,wherein distal translation of the drive beam assembly from a retracted position towards an advanced position effects movement of the first and second jaw members to the approximated position and disengages the latch of the latch assembly from the sled pusher assembly to facilitate distal movement of the sled pusher independently of the drive beam assembly and wherein distal movement of the sled pusher independently of the drive beam assembly advances the sled pusher and the sled of the cartridge assembly to eject the plurality of fasteners from the cartridge assembly.
1 Assignment
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Accused Products
Abstract
A surgical stapling apparatus is provided. The surgical stapling apparatus includes an actuating device including an elongated shaft. A tool assembly is disposed on a distal end of the shaft. The tool assembly includes a first jaw member supporting a cartridge assembly having a plurality of surgical fasteners, and a second jaw member supporting an anvil. The first jaw member is movable in relation to the second jaw member between a spaced position and an approximated position. One of the first and second jaw members includes a cantilever at a proximal end thereof. A firing cam bar assembly is slidably disposed within the tool assembly and includes a cam surface configured to engage the cantilever to move the first and second jaw member towards the approximated position and a distal end configured to deploy the plurality of surgical fasteners from the cartridge assembly.
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Citations
25 Claims
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1. A surgical stapling apparatus, comprising:
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an actuating device including an elongated shaft; a tool assembly disposed on a distal end of the shaft, the tool assembly including a first jaw member supporting a cartridge assembly having a plurality of pushers, a plurality of fasteners and a sled positioned to sequentially contact the plurality of pushers to eject the plurality of fasteners from the cartridge assembly and a second jaw member supporting an anvil, the first jaw member being movable in relation to the second jaw member between spaced and approximated positions; a sled pusher assembly including a sled pusher having a distal end configured to engage the sled of the cartridge assembly; and a drive beam assembly including a latch assembly and an I-beam, the latch assembly having a latch releasably coupled to the sled pusher assembly, and the I-beam having a sidewall defining a notch, the sled pusher received within the notch, wherein distal translation of the drive beam assembly from a retracted position towards an advanced position effects movement of the first and second jaw members to the approximated position and disengages the latch of the latch assembly from the sled pusher assembly to facilitate distal movement of the sled pusher independently of the drive beam assembly and wherein distal movement of the sled pusher independently of the drive beam assembly advances the sled pusher and the sled of the cartridge assembly to eject the plurality of fasteners from the cartridge assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A reload configured for use with a surgical stapling apparatus, the reload comprising:
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a shaft including a proximal end and distal end, the proximal end adapted to couple to a surgical apparatus; a tool assembly disposed on the distal end of the shaft, the tool assembly including a first jaw member supporting a cartridge assembly having a plurality of fasteners and a sled disposed within the cartridge assembly and positioned to sequentially eject the plurality of fasteners from the cartridge assembly and a second jaw member supporting an anvil, the first jaw member being movable in relation to the second jaw member between spaced and approximated positions; a sled pusher assembly including a sled pusher having a distal end configured to engage the sled of the cartridge assembly; and a drive beam assembly including a latch assembly and an I-beam, the latch assembly having a latch releasably coupled to the sled pusher assembly, and the I-beam having a side wall defining a notch, the sled pusher received within the notch, wherein distal translation of the drive beam assembly from a retracted position towards an advanced position effects movement of the first and second jaw members to the approximated position and disengages the latch of the latch assembly from the sled pusher assembly to facilitate distal movement of the sled pusher independently of the drive beam assembly and wherein distal movement of the sled pusher independently of the drive beam assembly advances the distal end of the sled pusher into engagement with the sled of the cartridge assembly to eject the plurality of fasteners from the cartridge assembly. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25)
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Specification