A reload assembly of a surgical stapling device includes a tool assembly, a drive assembly that is movable from a retracted position to an advanced position to actuate the tool assembly, and a lockout assembly including a lock member and a biasing member that prevents readvancement of the drive assembly. The lock member and the biasing member of the lockout assembly are configured to be securely fastened to each other using different structures and methods of securement.

An interchangeable shaft assembly for a surgical instrument that includes first and second drive systems. The interchangeable shaft assembly is configured for removable attachment to a housing of the surgical instrument. Various embodiments include a latch system that enables the interchangeable shaft assembly to be detached from the housing when the first drive system is unactuated but prevents the interchangeable shaft assembly from being detached from the housing when the first drive system is in an actuated position.

An adapter assembly includes an articulation nut, an articulation link, and a drive belt operably coupled to a distal portion of the articulation link. The articulation link has a proximal end portion operably coupled to the articulation nut, such that rotation of the articulation nut results in translation of the articulation link. The drive belt has a distal end portion configured to be operably coupled to a proximal end portion of a surgical loading unit, such that movement of the drive belt articulates the surgical loading unit relative to the adapter assembly.

A surgical stapling device is provided which includes a first jaw supporting an anvil assembly and a second jaw supporting a cartridge assembly. The cartridge assembly supports a firing lockout assembly which includes a latch member having a blocking portion. The latch member is movable between a first position and a second position. In the first position, the blocking portion of the latch member is aligned with the stop surface of the drive member to prevent advancement of the drive assembly beyond an initial advanced position within the tool assembly and in the second position, the blocking member is misaligned with the stop surface of the drive member to permit subsequent advancement of the drive assembly within the tool assembly. In the retracted position of the drive assembly subsequent to firing of the surgical stapling device, the latch member is in the first position.

Articulation joint arrangements for facilitating multi-axis articulation of a surgical end effector relative to a shaft assembly of a surgical instrument.

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.

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.

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.

A surgical stapling device includes a staple reload and a shipping wedge. In embodiments, the shipping wedge is configured to disable the use of a staple reload if the staple reload does not have an actuation sled. In other embodiments, the actuation sled includes a readable identifier that facilitates confirmation of the presence of an actuation sled within a staple reload from a location externally of the staple reload.

An apparatus includes a body, a shaft, and a stapling head assembly. The shaft extends distally from the body. The stapling head assembly is positioned at a distal end of the shaft. The stapling head assembly includes a staple driver member and a knife member. The staple driver member is configured to drive a plurality of staples into tissue. The knife member is configured to cut through the tissue. The knife member includes a proximal end, a distal end, and a cylindrical body extending between the proximal and distal ends. The cylindrical body includes at least one coupling feature that operatively couples the knife member with the staple driver member.