Electrically self-powered surgical instrument with cryptographic identification of interchangeable part

A surgical instrument, comprising:

• a surgical end effector having:
• at least one actuation assembly to effect a surgical procedure when actuated;
• and
• a receiving portion for removably receiving therein an interchangeable part, said receiving portion having a communication connection;
• a handle connected to said end effector for actuating said actuation assembly, said handle having a controller electrically connected to said communication connection for authenticating said interchangeable part;
• and
• an interchangeable part removably connected to said receiving portion and having a 1-wire encryption device electrically removably connected to said communication connection when at said receiving portion, said encryption device cryptographically authenticating said interchangeable part when said part is at said receiving portion.

A surgical instrument, comprising:

• a surgical end effector having:
• at least one actuation assembly to effect a surgical procedure when actuated;
• and
• a receiving portion for removably receiving therein an interchangeable part, said receiving portion having a communication connection;
• a handle connected to said end effector for actuating said actuation assembly, said handle having:
• a controller with a first microprocessor electrically connected to said communication connection through one wire for authenticating said interchangeable part;
• a power supply electrically connected to said controller for powering at least said controller;
• an interchangeable part:
• having a seated position in said receiving portion and an unseated position with respect to said receiving portion;
• being removably connectable to said receiving portion;
• and
• having a 1-wire encryption device electrically removably connected to said communication connection when said part is in said seated position, said encryption device:
• having a second microprocessor programmed to cryptographically authenticate said interchangeable part with said first microprocessor when said part is in said seated position;
• and
• being powered by said power supply through said one wire;
• and
• said encryption device and said controller sharing a common ground.