Methods for cryptographic identification of interchangeable parts for surgical instruments

摘要

A method for encrypted authentication of interchangeable parts of a surgical instrument includes providing a surgical end effector at a distal end of a handle of the surgical instrument and electrically connecting an authentication controller within the handle to a receiving portion of the end effector. An interchangeable part is removably placed at the receiving portion. The interchangeable part is authenticated with the authentication controller when the interchangeable part is seated in the end effector.

主权项

1. A method for operating a surgical instrument, which comprises:
providing a surgical end effector at a distal end of a surgical instrument handle; electrically connecting an authentication controller disposed within the surgical instrument handle to a receiving portion of the surgical end effector; providing an interchangeable part with a first 1-wire encrypted communication device, the interchangeable part being shaped to removably secure at the receiving portion; providing the authentication controller with a second 1-wire encrypted communication device; and removably securing the interchangeable part at the receiving portion to electrically connect the authentication controller to the first 1-wire encrypted communication device and, thereby, authenticate the interchangeable part with the authentication controller by executing an encrypted authentication algorithm with the first and second communication devices.