ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,193, issued on March 17.
"Breast pump" was invented by Wanyuan Chen (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A breast pump relating to the technical filed of breast pumps is provided, comprising a base, a breast pump assembly and a ventilation tube. The base includes a housing and a pneumatic pump, and the pneumatic pump is arranged in the housing. The breast pump assembly is used for pumping the milk of the mammary gland, and is detachably connected to the housing. When the breast pump assembly is separated from the housing, the ventilation tube is connected to the pneumatic pump and the breast pump assembly, so that the pne...