US Patent Issued to The Chinese University of Hong Kong on Dec. 30 for "PFD loaded microspheres and method for preparing injectable composite microsphere hydrogel solution from same" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,228, issued on Dec. 30, was assigned to The Chinese University of Hong Kong (Hong Kong).

"PFD loaded microspheres and method for preparing injectable composite microsphere hydrogel solution from same" was invented by Yangzi Jiang (Hong Kong) and Xiaobo Zhu (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "A therapeutic sustained delivery vehicle (TSDV) includes a plurality of microparticles with pirfenidone (PFD) within a poly(lactic-co-glycolic acid) (PLGA) matrix, where the microparticles are suspended in a hyaluronic acid (HA) solution. This suspension of microparticles are useful for injection into a joint that suffers from osteoarthriti...