1 results about "Heparin coating" patented technology

The present application relates to the technical field of medical stents, and discloses a heparin coating and a preparation method, a vascular heparin covered stent and a preparation method, the heparin coating is prepared by introducing a photo-reactive group on a heparin molecule through substrate pretreatment, heparin modification, ultraviolet light curing and other modes, and the process does not use toxic reagents; the vascular covered stent comprises a wavy spiral, a flexible and stretchable stent body, an inner stent cylinder film and an outer silk stent covered film, a coating is coated on the inner surface of the cylinder film and the outer surface of the covered film, the vascular environment of long-distance and repeated bending of lower limbs can be met, the heparin coating is firmly combined, has long-lasting anticoagulation, effectively inhibits thrombosis, and greatly improves the safety and service life of the stent.