ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,141, issued on May 26, was assigned to Lifetech Scientific (Shenzhen) Co. Ltd. (Shenzhen, China).
"Covered stent" was invented by Benhao Xiao (Shenzhen, China) and Tingbo Ming (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A covered stent (10), comprising a main body stent (11), a window (13) being formed on a surface of the main body stent (11). The covered stent (10) further includes an internal covering film (14). An edge of the internal covering film (14) is connected to the main body stent (11). The internal covering film (14) includes a bottom portion (141), a proximal end folding portion and a distal end folding portion, and t...