Resmed Limited

Christopher John Roberts

Chinmayee Somaiya

Wendall Eric Trull

Graham Stephen Cutcliffe

Paul Frederick Birchall

Dawn Rosemary Churchill

Peter Delangre

Bradley Scott Templeton

Luke Anthony Tucker

Matthew Scott Tyler

Amila Jeewaka Fernando

Brian Hickey

Jason Stelakis Price

Brain Hickey

Methods and apparatus provide communications among respiratory therapy device ('TD'), server and intermediary (e.g., a control device (“CTLD”) for the therapy device) to improve security. More secure communication channel(s) may be established using shared secrets derived with different channels. The communications may include transmitting therapy data from TD to server for authentication. The CTLD may receive the data and a nonce from a server. The CTLD receives from the TD a signing key dependent on the nonce and a secret shared by TD and server. The CTLD generates an authorisation code with received therapy data and the key for authentication of the data by the server upon its receipt of the code and data. The server computes (1) a key from the nonce and the secret known to TD, and (2) another authorisation code from received therapy data and the key. Data authentication may involve comparing received and computed codes.

Secure networked respiratory therapy systems

A system and method for updating patient devices is disclosed. The patient devices may include respiratory therapy devices that operate in accordance with instruction sets, such as software or firmware. A server may maintain a database of configuration data indicating the versions of the software and firmware that is currently installed on the patient devices. The server may also transmit updated instructions from over a network, including a wireless network. Particular patient devices may be selected for updating based on the configuration data. Upon performing an update a patient device may transmit configuration data to the server.

Remote respiratory therapy device management

Methods and apparatus provide communications among respiratory therapy device ('TD'), server and intermediary (e.g., a control device ('CTLD') for the therapy device) to improve security. More secure communication channel(s) may be established using shared secrets derived with different channels. The communications may include transmitting therapy data from TD to server for authentication. The CTLD may receive the data and a nonce from a server. The CTLD receives from the TD a signing key dependent on the nonce and a secret shared by TD and server. The CTLD generates an authorisation code with received therapy data and the key for authentication of the data by the server upon its receipt of the code and data. The server computes (1) a key from the nonce and the secret known to TD, and (2) another authorisation code from received therapy data and the key. Data authentication may involve comparing received and computed codes.

A system and method for updating patient devices is disclosed. The patient devices () may include respiratory therapy devices () that operate in accordance with instruction sets (), such as software or firmware. A server () may maintain a database of configuration data () indicating the versions of the software and firmware that is currently installed on the patient devices (). The server () may also transmit updated instructions () from over a network (), including a wireless network. Particular patient devices () may be selected for updating based on the configuration data (). Upon performing an update a patient device () may transmit configuration data () to the server ().

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San Diego, CA, United States of America

Christopher John Roberts