Stent For Placement In Body

It is intended to easily provide a stent for placement in body which can hold an increased amount of a drug without causing cracking or peeling in the coating layer with the dilation of the stent and from which the drug can be sustainedly released as far as possible. Namely, a stent for placement in...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TAKIGUCHI YUKI, KAWATSU MASAJI, NAKANO RYOJI, NISHIDE TAKUJI, FUKAYA KOHEI
Format:	Patent
Sprache:	eng
Schlagworte:	BANDAGES, DRESSINGS OR ABSORBENT PADS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROMTHE BODY DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF,TUBULAR STRUCTURES OF THE BODY, E.G. STENTS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FILTERS IMPLANTABLE INTO BLOOD VESSELS FIRST-AID KITS FOMENTATION HUMAN NECESSITIES HYGIENE MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES PROSTHESES TREATMENT OR PROTECTION OF EYES OR EARS
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Beschreibung
Zusammenfassung:	It is intended to easily provide a stent for placement in body which can hold an increased amount of a drug without causing cracking or peeling in the coating layer with the dilation of the stent and from which the drug can be sustainedly released as far as possible. Namely, a stent for placement in body having a coating layer mainly comprising a drug and a polymer in at least a part of the stent surface wherein the coating layer consists of an inner layer and an outer layer, the weight ratio of drug/polymer, which is defined based on the weights of the drug and the polymer contained in each layer, of the inner layer is higher than that of the outer layer, and the outer layer contains an efficacious amount of the drug.