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US 2021/0275174 A1Published application
Staple cartridge
AssigneeCovidien LP
InventorsK V S Manoj Kumar Vadali, Sabastian K. George
Life of this patent
Estimating the term…
Abstract
A tool assembly for use with a surgical stapling device includes structure on an anvil assembly and/or a cartridge assembly to obstruct blood from flowing through spaces in a staple line as the staple line is being formed by the stapling device. In aspects of the disclosure, the tool assembly includes protrusions to compress tissue adjacent to spaces in the staple line as the staple line is being formed and tissue is being cut.
Claims20
A tool assembly comprising:
- an anvil assembly including an anvil having an outer periphery and an anvil surface, the anvil surface defining a first knife slot and a plurality of rows of staple deforming pockets positioned on each side of the knife slot, the plurality of rows of staple deforming pockets including inner rows of staple deforming pockets positioned adjacent to the first knife slot and outer rows of staple deforming pockets, the staple deforming pockets in the outer rows of staple deforming pockets being longitudinally aligned and spaced from each other to define first spaces between the staple deforming pockets, the anvil surface including rows of first protrusions positioned along the outer periphery of the anvil adjacent the outer rows of staple deforming pockets, the first protrusions being longitudinally aligned with the first spaces between the staple deforming pockets in the outer rows of staple deforming pockets;
- and
- a cartridge assembly coupled to the anvil assembly such that the tool assembly is movable between an open position and a clamped position, the cartridge assembly having an outer periphery and including a cartridge channel and a staple cartridge supported within the cartridge channel, the staple cartridge defining a second knife slot and a plurality of rows of staple receiving pockets, the plurality of rows of staple receiving pockets including inner rows of staple receiving pockets positioned adjacent to the second knife slot and outer rows of staple receiving pockets, the staple receiving pockets in the outer rows of staple deforming pockets being longitudinally aligned and spaced from each other to define second spaces between the staple receiving pockets, the staple cartridge including rows of second protrusions positioned along the outer periphery of the staple cartridge adjacent the outer rows of staple receiving pockets, the second protrusions being longitudinally aligned with the second spaces between the staple receiving pockets in the outer rows of staple receiving pockets.
A surgical stapling device comprising:
- an elongate body having a proximal portion and a distal portion;
- and
- a tool assembly supported on the distal portion of the elongate body, the tool assembly including:
- an anvil assembly including an anvil having an outer periphery and an anvil surface, the anvil surface defining a first knife slot and a plurality of rows of staple deforming pockets positioned on each side of the knife slot, the plurality of rows of staple deforming pockets including inner rows of staple deforming pockets positioned adjacent to the first knife slot and outer rows of staple deforming pockets, the staple deforming pockets in the outer rows of staple deforming pockets being longitudinally aligned and spaced from each other to define first spaces between the staple deforming pockets, the anvil surface including rows of first protrusions positioned along the outer periphery of the anvil adjacent to the outer rows of staple deforming pockets, the first protrusions being longitudinally aligned with the first spaces between the staple deforming pockets in the outer rows of staple deforming pockets;
- and
- a cartridge assembly coupled to the anvil assembly such that the tool assembly is movable between an open position and a clamped position, the cartridge assembly having an outer periphery and including a cartridge channel and a staple cartridge supported within the cartridge channel, the staple cartridge defining a second knife slot and a plurality of rows of staple receiving pockets, the plurality of rows of staple receiving pockets including inner rows of staple receiving pockets positioned adjacent to the second knife slot and outer rows of staple receiving pockets, the staple receiving pockets in the outer rows of staple deforming pockets being longitudinally aligned and spaced from each other to define second spaces between the staple receiving pockets, the staple cartridge including rows of second protrusions positioned along the outer periphery of the staple cartridge adjacent to the outer rows of staple receiving pockets, the second protrusions being longitudinally aligned with the second spaces between the staple receiving pockets in the outer rows of staple receiving pockets.
3 more elements
An anvil assembly comprising:
- an anvil having an outer periphery and an anvil surface, the anvil surface defining a knife slot and a plurality of rows of staple deforming pockets positioned on each side of the knife slot, the plurality of rows of staple deforming pockets including inner rows of staple deforming pockets positioned adjacent to the knife slot and outer rows of staple deforming pockets, the staple deforming pockets in the outer rows of staple deforming pockets being longitudinally aligned and spaced from each other to define spaces between the staple deforming pockets, the anvil surface including rows of protrusions positioned along the outer periphery of the anvil adjacent to the outer rows of staple deforming pockets, the first protrusions being longitudinally aligned with the first spaces between the staple deforming pockets in the outer rows of staple deforming pockets.
Dependencies are inferred from the claim text.