1 results about "Sodium Diclofenac" patented technology

This invention relates to the field of medical devices, specifically to a patch application, its preparation method, and its application. The patch comprises an immediate-release layer, a cross-linking layer, and a sustained-release layer; the cross-linking layer is placed between the immediate-release and sustained-release layers, with the immediate-release layer in contact with the skin; the immediate-release layer comprises a first microsphere, which has a polyvinyl alcohol coating and an ibuprofen core; the cross-linking layer is a calcium ion cross-linked membrane obtained by cross-linking sodium alginate and calcium chloride; the sustained-release layer comprises a second microsphere, which has a polylactic acid-glycolic acid copolymer coating and a diclofenac sodium core. The patch application provided by this invention can rapidly reduce inflammation and pain through the anti-inflammatory and analgesic microspheres and maintain the surgical patch for a certain period of time, while also providing local physical cooling. Compared with traditional patches, it alleviates postoperative pain to a certain extent and accelerates wound healing.