MEDICAL DEVICE INCLUDING ANIONIC DRUG

MEDICAL DEVICE INCLUDING ANIONIC DRUG

The purpose of the present invention is to provide a polymer gel that can increase drug content ratio and reduce undesirable influence on gel strength and shape stability after the drug release, compared with the conventional techniques. The purpose can be achieved by an anionic drug-containing medi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: OBATA, Haruka, MATSUNAGA, Toru, SATO, Takao, YAMAZAKI, Yoshiko, SHOJI, Kiyoshi, ASAYAMA, Wakiko, YASUEDA, Shinichi
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS
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Beschreibung
Zusammenfassung:The purpose of the present invention is to provide a polymer gel that can increase drug content ratio and reduce undesirable influence on gel strength and shape stability after the drug release, compared with the conventional techniques. The purpose can be achieved by an anionic drug-containing medical device comprising: (1) an anionic drug; and (2) a copolymer which contains, as constituents, a cationic monomer comprising a condensation product of an alkyl quaternary ammonium compound having a substituted or unsubstituted aralkyl group and (meth)acrylic acid or a salt of the condensation product and a monomer capable of copolymerizing with the condensation product or the salt of the condensation product.