MACROPOROUS GEL MATERIAL AND BASED PRODUCTS Russian patent published in 2008 - IPC A61L15/22 A61L15/44 

FIELD: medicine.

SUBSTANCE: products made of given material can be applied in ophthalmology, microsurgery, plastic surgery, general, thoracic, cardiovascular and maxillofacial surgery, gynaecology, stomatology, otolaryngology and other fields of applied medicine. The macroporous cross-linked polymeric material is produced by polymerisation in aqueous frozen solutions of water-soluble nonsaturated derivatives of polyvinyl alcohol. Nonsaturated radical introduced into lateral chain contains one or two nonsaturated groups and provides formation of spatial structure within radical polymerisation and copolymerisation. Radical can contain nonsaturated acid residue, e.g. acrylic, methacrylic, sorbic, crotonic, cinnamic acid, or olefinic group. Nonsaturated group can be also introduced as lateral acetal substitute.

EFFECT: increased thermostability; developed porosity and high draining activity.

12 cl, 3 ex