ALEXANDRIA, Va., March 26 -- United States Patent no. 12,257,111, issued on March 25.
"Dental flosser with collar member for adjusting floss tension" was invented by Meng Xu (West Vancouver, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A dental flosser that includes a U-shaped portion having first and second arms, a handle portion, a floss strand attachment member and a floss strand. The floss strand attachment member is movable distally and proximally with respect to the handle portion. The floss strand attachment member includes a collar member that at least partially surrounds the handle portion and defines a collar member interior. The floss strand has a length and a first end fastened to the fi...