Surgical stapler with rotary cam drive

A surgical instrument comprising:

• (a) a handle assembly;
• (b) a shaft extending distally from the handle assembly, wherein the shaft comprises a proximal end and a distal end;
• (c) a stapling assembly, wherein the stapling assembly is disposed at the distal end of the shaft, wherein the stapling assembly is configured to selectively move from an open position to a closed position, and wherein the stapling assembly is operable to drive a plurality of staples in a circular array to secure two lumens of tissue together;
• (d) a motor;
• (e) a cam assembly coupled with the motor, wherein the motor is configured to rotate the cam assembly;
• (f) a firing assembly in mechanical communication with the cam assembly, wherein the firing assembly is configured to cause the stapling assembly to longitudinally translate to thereby drive the plurality of staples;
• and
• (g) a resiliently biased member, wherein the resiliently biased member is configured to bias the firing assembly toward the cam assembly.

A surgical instrument comprising:

• (a) a handle assembly;
• (b) a shaft extending distally from the handle assembly, wherein the shaft comprises a proximal end and a distal end;
• (c) a stapling assembly, wherein the stapling assembly is disposed at the distal end of the shaft, wherein the stapling assembly is configured to selectively move from an open position to a closed position, and wherein the stapling assembly is operable to drive a plurality of staples in a circular array to secure two lumens of tissue together;
• (d) a first motor;
• (e) a second motor;
• (e) a gear assembly coupled with the motor, wherein the motor is configured to rotate components of the gear assembly;
• and
• (f) a firing assembly, wherein the firing assembly is configured to cause the stapling assembly to longitudinally translate to thereby drive the plurality of staples, wherein components of the gear assembly are configured to rotate to cause longitudinal translation of the firing assembly.