US Patent Issued on Oct. 20 for "Breathing device with carbon dioxide compensation function" (Chinese Inventors)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,766,280, issued on Oct. 20.

"Breathing device with carbon dioxide compensation function" was invented by Hui Dong (Guangzhou, China), Longchao Zhao (Guangzhou, China) and Caixin Sun (Guangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A breathing device with carbon dioxide compensation function includes an air source pipeline, a low pressure oxygen source pipeline, a high pressure oxygen source pipeline, a carbon dioxide source pipeline, a gas supply pipeline all of which are set in a ventilator and corresponding to an air source, a lower pressure oxygen source, a high pressure oxygen source and a carbon dioxide source respectively; and a br...