Patent ID: 11896760
Assignee: REHALER APS
Field: Medical technology (Instruments)
Classification: CPC A | IPC A

Claim 0:
1. A system for adjusting the rebreathing ratio (RBR) of a user, the system comprising:
a breathing device comprising:
a mouthpiece forming a breathing channel to form a connection between a first end and a second end of the mouthpiece, the first end being configured to accommodate a user breathing into the mouthpiece through a breathing opening;
an at least partly flexible rebreathing air chamber arranged in fluid communication with the second end of the mouthpiece, thereby being in fluid connection with the breathing channel through the second end of the mouthpiece, the rebreathing air chamber being formed by at least partly flexible wall section(s);
a wall member pivotally connected to the second end of the mouthpiece and forming part of the rebreathing air chamber, said wall member comprising one or more through-going openings provided in the wall member at the second end of the mouthpiece, allowing fluid communication between the rebreathing air chamber and the surrounding atmosphere, said one or more through-going openings being re-closeable or adjustable in size, and
a computer configured to automatically determine whether to change the RBR based on the user's response to a questionnaire in data connection with said computer,

wherein the system is configured to signal the user to change a setting of the re-closeable or adjustable one or more through-going openings, if when the RBR is determined to be changed by the computer based on the data from the questionnaire.