Establishing secure communication at an emergency care scene

A patient monitor for use in assisting a user during a medical event comprising:

• at least one processor;
• and
• a non-transitory machine-readable medium storing instructions that, when executed by the at least one processor, cause the at least one processor to perform operations comprising:
• receiving from a mobile device, a request to establish a communication channel with the mobile device, the request being associated with an identifier extracted from an image of a visual code;
• and
• establishing the communication channel with the mobile device using the extracted identifier, wherein the communication channel is configured to use proximate tokens between the patient monitor and the mobile device, wherein the proximate tokens for determining spatial localization is mutually known by the patient monitor and the mobile device without requiring transmission to the other device, and wherein the proximate tokens are used in a key-exchange protocol.

A mobile device for use in assisting a user during a medical event, the mobile device comprising:

• a camera;
• at least one processor;
• and
• a non-transitory machine-readable medium storing instructions that, when executed by the at least one processor, cause the at least one processor to perform operations comprising:
• obtaining, from the camera, an image of a visual code presented on a patient monitor;
• extracting an identifier associated with the patient monitor from the obtained image;
• and
• establishing a communication channel with the patient monitor using the extracted identifier, wherein the communication channel is configured to use proximate tokens between the patient monitor and the mobile device, wherein the proximate tokens for determining spatial localization is mutually known by the patient monitor and the mobile device without requiring transmission to the other device, and wherein the proximate tokens are used in a key-exchange protocol.