US Patent Issued to Zhongshan Ophthalmic Center of Sun Yat-Sen University on April 21 for "Collection device with a valve for a liquid specimen" (Chinese Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,149, issued on April 21, was assigned to Zhongshan Ophthalmic Center of Sun Yat-Sen University (Guangzhou, China).

"Collection device with a valve for a liquid specimen" was invented by Yizhi Liu (Guangzhou, China), Yan Luo (Guangzhou, China), Xiaofeng Lin (Guangzhou, China) and Lin Lu (Guangzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Collection devices with valves for liquid specimens are disclosed. In an embodiment, the disclosure provides a collection device including a reservoir having a sealed cavity, the sealed cavity being under a negative pressure; a delivery tube in communication with the sealed cavity of the reservoir and h...