Surgical staples and end effectors for deploying the same
AssigneeCovidien LP
InventorsStanislaw Z. Marczyk, Simon R. Grover
Life of this patent
Estimating the term…
Abstract
An end effector includes an anvil and a cartridge assembly having a plurality of surgical staples disposed in a cavity defined therein. The cartridge assembly may include a movable driver or sled configured to deploy the surgical staple from the cavity into tissue. The surgical staple may include a linear leg and an arcuate leg extending therefrom. The linear leg may include a protruding portion to provide pressure to tissue captured by the surgical staple. A three-dimensional and/or self-supporting surgical staple may interlock its two legs upon deployment thereof.
Claims20
An end effector for a surgical stapler, the end effector comprising:
- an anvil including a staple forming surface that defines therein:
- a first staple forming pocket configured to engage an end of a long leg of a staple;
- and
- a second staple forming pocket disposed adjacent the first staple forming pocket, the second staple forming pocket being configured to engage an end of a short leg of the staple;
- and
- a cartridge assembly movably coupled to the anvil between unapproximated and approximated positions, the cartridge assembly defining a longitudinal axis and a pocket extending at an angle relative to the longitudinal axis, the pocket of the cartridge assembly supporting the staple therein, the cartridge assembly including a driver configured to move the staple into engagement with the staple forming surface of the anvil to deform the staple, wherein the first anvil pocket is longer than the second anvil pocket, such that the first anvil pocket deforms the long leg to a lesser degree than the second anvil pocket deforms the short leg.
An anvil configured to apply a compressive force on a surgical staple, the surgical staple having a long leg and a short leg, the anvil comprising:
- a staple forming surface defining therein:
- a first staple forming pocket configured to engage an end of the long leg of the staple;
- and
- a second staple forming pocket disposed adjacent the first staple forming pocket, the second staple forming pocket being configured to engage an end of the short leg of the staple, wherein the first anvil pocket is configured to deform the long leg about a first axis, and the second anvil pocket is configured to deform the short leg about a second axis that is perpendicular to the first axis.
An anvil configured to apply a compressive force on a surgical staple, the surgical staple having a long leg and a short leg, the anvil comprising:
- a staple forming surface defining therein:
- a first staple forming pocket configured to engage an end of the long leg of the staple;
- and
- a second staple forming pocket disposed adjacent the first staple forming pocket, the second staple forming pocket being configured to engage an end of the short leg of the staple, wherein the first anvil pocket is configured to deform the long leg about a first axis, and the second anvil pocket is configured to deform the short leg about a second axis that is non-parallel to the first axis.
Dependencies are inferred from the claim text.