Stapling device with selective cutting

A 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 defining an anvil channel and a knife slot, the knife slot communicating with the anvil channel;
• a cartridge assembly including a channel member, a staple cartridge, and an actuation sled, the channel member configured to receive the staple cartridge and defining a longitudinal slot, the staple cartridge supporting a plurality of staples and defining a knife slot that is aligned with the longitudinal slot, the cartridge assembly coupled to the anvil such that the anvil and the cartridge assembly are movable in relation to each other between open and clamped positions;
• a drive assembly including a resilient beam and a working member, the drive assembly being movable in relation to the anvil and the cartridge assembly from a drive assembly retracted position to a drive assembly advanced position to advance the actuation sled through the staple cartridge from a sled retracted position to a sled advanced position to eject the plurality of staples from the staple cartridge;
• and
• a locking member supported on a distal portion of one of the anvil or the cartridge assembly, the locking member configured to engage the other of the anvil or cartridge assembly to secure the anvil and the cartridge assembly in the clamped position, wherein the actuation sled is configured to engage the locking member when the actuation sled is in the sled advanced position to disengage the locking member from the other of the anvil or the cartridge assembly.

A tool assembly comprising:

• an anvil;
• a cartridge assembly including a staple cartridge and an actuation sled, the staple cartridge supporting a plurality of staples, the cartridge assembly coupled to the anvil such that the anvil and the cartridge assembly are movable in relation to each other between open and clamped positions;
• a drive assembly including a resilient beam and a working member, the drive assembly movable in relation to the anvil and the cartridge assembly from a retracted position to an advanced position to advance the actuation sled through the staple cartridge from a sled retracted position to a sled advanced position to eject the plurality of staples from the staple cartridge;
• and
• a locking member supported on a distal portion of the anvil, the locking member configured to engage the cartridge assembly to secure the anvil and the cartridge assembly in the clamped position, wherein the actuation sled is configured to engage the locking member when the actuation sled is in the sled advanced position to disengage the locking member from the cartridge assembly.