Patent ID: 11857147
Assignee: CMR SURGICAL LIMITED
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 19:
20. A system to activate an electrosurgical instrument attached to a surgical robot arm, the system comprising:
an external computing device configured to:
periodically receive a token from a surgical robot arm control unit, the token comprising information indicating a time at which the token was generated by the surgical robot arm control unit; and
for each received token, in response to receiving input indicating that the electrosurgical instrument is to be activated, transmit a modified version of the token to the surgical robot arm control unit, the modified version of the token indicating that the electrosurgical instrument is to be activated; and

the surgical robot arm control unit in communication with the external computing device, the surgical robot arm control unit configured to:
receive the modified version of the token; and
in response to the modified version of the token being received within a threshold amount of time from when the token was generated, outputting one or more signals that cause the electrosurgical instrument to be activated.