US Patent Issued to BMC MEDICAL on May 12 for "Safety valve sheet, breathing tube, breathing tube assembly and breathing mask" (Chinese Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,623,044, issued on May 12, was assigned to BMC MEDICAL Co. LTD. (Beijing).

"Safety valve sheet, breathing tube, breathing tube assembly and breathing mask" was invented by Long He (Beijing), Mingzhao Zhou (Beijing) and Zhi Zhuang (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A safety valve sheet, a breathing tube, a breathing tube assembly and a breathing mask are provided. The safety valve sheet is used for being arranged in the breathing tube which is provided with a safety valve hole of the breathing mask, the safety valve sheet comprises a sheet body, and the sheet body comprises an outer side surface being capable of covering the safety va...