MANUFACTURING METHOD OF MEDICAL USE TREATMENT MATERIAL

To provide a manufacturing method of a medical use treatment material having a physical crosslinking structure due to a hydrogen bond, and capable of guaranteeing sterility while suppressing a shape change and property change before and after sterilization treatment, in a medical use treatment mater...

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Bibliographische Detailangaben
Hauptverfasser: ITO TOMOKO, KASHIWAKAWA AYAKA, HASEGAWA TAKASHI, KOYAMA YOSHIYUKI, NAKAMURA KENICHI, KUNO MASAYA
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a manufacturing method of a medical use treatment material having a physical crosslinking structure due to a hydrogen bond, and capable of guaranteeing sterility while suppressing a shape change and property change before and after sterilization treatment, in a medical use treatment material that has a physical crosslinking structure due to a hydrogen bond and forms hydrogel due to contact with a water content.SOLUTION: A medical use treatment material forming hydrogel by contact with a water content is manufactured according to a method comprising obtaining a film-like solid containing one polymer among a polymer (A) having a structural unit derived from an ethylenically unsaturated monomer having a carboxyl group, and a polymer (B) having a structural unit derived from an ethylenically unsaturated monomer having a functional group capable of forming a hydrogen bond with the carboxyl group (where the polymer (A) is omitted), drying after contacting the film-like solid and a polymer solution containing the other polymer of the polymer (A) and the polymer (B), and sterilizing a dried body by radiation sterilization.SELECTED DRAWING: None 【課題】水素結合による物理架橋構造を有し、水分との接触によりハイドロゲルを形成する医療用処置材において、滅菌処理前後の形状変化及び性質変化を抑制しつつ無菌性を保証することができる医療用処置材の製造方法を提供すること。【解決手段】カルボキシル基を有するエチレン性不飽和単量体に由来する構造単位を有する重合体(A)、及びカルボキシル基と水素結合を形成し得る官能基を有するエチレン性不飽和単量体に由来する構造単位を有する重合体(B)(ただし、重合体(A)を除く)のうち一方の重合体を含むフィルム状固形物を得る工程と、フィルム状固形物と、重合体(A)及び重合体(B)のうち他方の重合体を含む重合体溶液とを接触させた後、乾燥させる工程と、乾燥体を放射線滅菌により滅菌処理する工程と、を含む方法により、水分との接触によりハイドロゲルを形成する医療用処置材を製造する。【選択図】なし