发明名称 |
PROCEDIMIENTO PARA LA PURIFICACION DE ACIDO HIALURONICO Y FRACCION DE ACIDO HIALURONICO PURO PARA UTILIZACION OFTALMOLOGICA. |
摘要 |
A highly pure fraction of hyaluronic acid is disclosed which is non-inflammatory and avoids post-operative complications in ocular surgery. Also disclosed is a process for the preparation of hyaluronic acid characterized by converting hyaluronic acid into a corresponding quaternary ammonium salt and, following purification procedures, reconverting the quaternary ammonium salt into a sodium salt of hyaluronic acid.
|
申请公布号 |
ES2092971(T3) |
申请公布日期 |
2000.01.01 |
申请号 |
ES19920908628T |
申请日期 |
1992.04.16 |
申请人 |
FIDIA S.P.A. |
发明人 |
ROMEO, AURELIO;LORENZI, SILVANA |
分类号 |
A61K9/08;A61F9/00;A61K31/715;A61K31/728;A61P27/02;C07H;C08B37/08;(IPC1-7):C08B37/08;A61K31/73 |
主分类号 |
A61K9/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|