Mating features between drivers and underside of a cartridge deck
AssigneeCilag GmbH International
InventorsFrederick E. Shelton, IV, Adam D. Hensel, Seth D. Holdmeyer
Life of this patent
Estimating the term…
Abstract
A surgical device having at least one rotary input screw in the end effector is provided. A rotary input screw can extend through a central longitudinal portion of the end effector. The end effector can include an improved closure system, firing systems, leveraging and alignment features between the staple cartridge and the surgical device, staple cartridges having multi-staple drivers, single-firing knifes and lockout/safety features for the same, and/or modified staple patterns, for example. Certain components can be 3D-printed components.
Claims20
A fastener cartridge, comprising:
- a body comprising a tissue-supporting deck, wherein fastener cavities are defined through the tissue-supporting deck in the body, wherein the fastener cavities comprise a first cavity, and wherein the tissue-supporting deck comprises:
- a tissue-facing side;
- and
- an underside opposite the tissue-facing side, wherein the underside comprises an underside surface contour adjacent to the first cavity;
- fasteners removably positioned in the fastener cavities;
- and
- drivers movably supporting the fasteners and configured to move through a portion of the fastener cavities to fired positions to eject the fasteners from the fastener cavities, wherein the drivers comprise a first driver, comprising:
- a support column comprising a fastener cradle;
- and
- a base extending laterally from the support column, wherein the base comprises a top surface contour configured to mate with the underside surface contour when the first driver is in the fired position.
A fastener cartridge, comprising:
- a body comprising a tissue-supporting deck, wherein fastener cavities are defined through the tissue-supporting deck in the body, and wherein the tissue-supporting deck comprises:
- a tissue-facing side comprising a bumpy surface;
- and
- an underside opposite the tissue-facing side, wherein the underside comprises a rutted surface;
- fasteners removably positioned in the fastener cavities;
- and
- drivers movably supporting the fasteners and configured to move through a portion of the fastener cavities to fired positions to eject the fasteners from the fastener cavities, wherein each driver comprises a base housed in the fastener cartridge and comprising surface contours configured to mate with the rutted surface on the underside of the tissue-supporting deck when each driver is in its fired position.
A fastener cartridge, comprising:
- a body comprising a tissue-supporting deck, wherein fastener cavities are defined through the tissue-supporting deck in the body, and wherein the tissue-supporting deck comprises:
- a tissue-facing side comprising an arrangement of protrusions;
- and
- a contoured underside opposite the tissue-facing side;
- fasteners removably positioned in the fastener cavities;
- and
- drivers movably supporting the fasteners and configured to move through a portion of the fastener cavities to fired positions to eject the fasteners from the fastener cavities, wherein each driver comprises:
- a first support column comprising a first fastener cradle defining a first longitudinal axis;
- a second support column comprising a second fastener cradle defining a second longitudinal axis;
- and
- a bridge connecting the first support column and the second support column within the body, wherein at least one bridge comprises a tissue-facing surface comprising a diagonal surface traversing and asymmetric relative to a longitudinal centerline equidistant between the first longitudinal axis and the second longitudinal axis.
Dependencies are inferred from the claim text.