Adjunct therapy device for applying hemostatic agent

A surgical instrument apparatus comprising:

• (a) a handle portion;
• (b) a shaft housing a firing bar;
• (c) an end effector comprising an anvil, a lower jaw, and a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft;
• (d) a removable cartridge, wherein the lower jaw is configured to receive the cartridge, the cartridge comprising:
• (i) a housing,
• (ii) a plurality of staples disposed in the housing, and
• (iii) a deck disposed over the plurality of staples, the deck defining apertures, wherein each aperture is substantially disposed over a respective staple;
• and
• (e) an applicator configured to be slidably received onto the removable cartridge to a position of alignment between the removable cartridge and the anvil, wherein the applicator comprises an upper portion and a lower portion, wherein the upper portion houses a first material, and wherein the lower portion houses a second material.

A surgical instrument comprising:

• (a) a handle portion and a shaft, the shaft housing a firing bar;
• (b) a stapling and severing assembly responsive to a longitudinal closing motion produced by the handle portion and the shaft,
• (c) an end effector connected to the handle portion, the end effector comprising an anvil and a lower jaw, the anvil defining an opening, the lower jaw being configured to receive the cartridge;
• (d) a cartridge including a deck and a housing, wherein a plurality of staples are disposed in the housing of the cartridge, wherein the deck is disposed over the plurality of staples, the deck defining apertures, wherein each aperture is substantially disposed over a respective staple, and wherein the anvil is configured to form the staples in response to the longitudinal closing motion;
• (e) an envelope comprising a biocompatible material;
• and
• (f) a pocket defined in the cartridge, wherein the pocket is disposed below the deck and above the plurality of staples, wherein the pocket is configured to receive the envelope.