Double fire stapling
First Claim
1. A tool assembly comprising:
- a cartridge assembly including a cartridge body defining a tissue contact surface and a plurality of rows of retention slots, each retention slot of the plurality of rows of retention slots supporting a staple therein and defining an opening on the tissue contact surface, the cartridge body defining a first firing channel and a second firing channel, the first firing channel associated with a first row of staples and the second firing channel associated with a second row of staples;
an anvil assembly supported adjacent the cartridge assembly, the anvil assembly and the cartridge assembly being movable between open and closed positions in relation to each other; and
a first firing cam positioned within the first firing channel of the cartridge body, the first firing cam configured to translate through the first firing channel during a first axial translation of the first firing cam to fire the first row of staples, the first firing cam being biased to move into the second firing channel of the cartridge body upon retraction of the first firing cam after the first axial translation such that the first firing cam moves to a position to translate through the second firing channel upon a second axial translation of the first firing cam to fire the second row of staples.
1 Assignment
0 Petitions
Accused Products
Abstract
A tool assembly for a surgical stapling instrument includes anvil and cartridge assemblies movable between open and closed positions. The cartridge assembly includes a cartridge body defining a tissue contact surface and rows of staples. The cartridge body defines a first firing channel associated with a first row of staples and a second firing channel associated with a second row of staples. A firing cam is positioned within the first firing channel and translates therethrough during a first axial translation to fire the first row of staples. The first firing cam is biased to move into the second firing channel upon retraction after the first axial translation such that the first firing cam translates through the second firing channel upon a second axial translation to fire the second row of staples.
-
Citations
20 Claims
-
1. A tool assembly comprising:
-
a cartridge assembly including a cartridge body defining a tissue contact surface and a plurality of rows of retention slots, each retention slot of the plurality of rows of retention slots supporting a staple therein and defining an opening on the tissue contact surface, the cartridge body defining a first firing channel and a second firing channel, the first firing channel associated with a first row of staples and the second firing channel associated with a second row of staples; an anvil assembly supported adjacent the cartridge assembly, the anvil assembly and the cartridge assembly being movable between open and closed positions in relation to each other; and a first firing cam positioned within the first firing channel of the cartridge body, the first firing cam configured to translate through the first firing channel during a first axial translation of the first firing cam to fire the first row of staples, the first firing cam being biased to move into the second firing channel of the cartridge body upon retraction of the first firing cam after the first axial translation such that the first firing cam moves to a position to translate through the second firing channel upon a second axial translation of the first firing cam to fire the second row of staples. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A surgical stapling device comprising:
-
a housing; a shaft that extends distally from the housing; and a tool assembly supported on the shaft, the tool assembly including; a cartridge assembly including a cartridge body defining a first firing channel and a second firing channel, the first firing channel associated with a first row of staples and the second firing channel associated with a second row of staples; an anvil assembly supported adjacent the cartridge assembly, the anvil assembly and the cartridge assembly being movable between open and closed positions in relation to each other; and a first firing cam positioned within the first firing channel of the cartridge body, the first firing cam configured to translate through the first firing channel during a first axial translation of the first firing cam to fire the first row of staples, the first firing cam being biased to move into the second firing channel of the cartridge body upon retraction of the first firing cam after the first axial translation such that the first firing cam moves to a position to translate through the second firing channel upon a second axial translation of the first firing cam to fire the second row of staples. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
-
Specification