STENT APPARATUS HAVING SELF-PLEATED SKIRT, PROCESSING METHOD THEREFOR, SKIRT PLEATING METHOD, AND CARDIAC VALVE

摘要

Disclosed in the present invention are a stent apparatus having a self-pleatedskirt,a processing method therefor, a skirt pleating method, and a cardiac valve.The stentapparatus comprises a stent, and is further provided with a flexible skirt.The skirtcomprises: an unfolded state, where the skirt extends axially and surroundstheperiphery of the stent before release; and a stacked state, where the skirt isdriven bydeformation during release of the stent, and gathers and is stacked along anaxialdirection of the released stent to form an annular perivalvular leakageblocking part. Thestent apparatus is further provided with a pull-wire which is merely threadedon the skirt,and the pull-wire may react to the radial deformation during the release ofthe stent todrive the skirt to enter the stacked state. According to the presentinvention, based onperivalvular leakage prevention technology, an interventional stent is fittedwith thelining of the blood vessels, so that the stent will not easily be migrated andis morestable, the scope of the applicable population is expanded, additionalsurgical risks arelowered, and perivalvular leakage, thrombi and other complications areprevented.Better hemodynamic performance is provided, the coverage function ofendothelial cellsof the host is enhanced, the probability of occurrence of endocarditis islowered, and thenormal blood supply function of the heart and blood vessels is recovered.