POROUS BIO-ABSORPTIVE MATERIAL AND MANUFACTURING METHOD THEREOF

• Main Authors: HANAKI NAOYUKI, HIRAYAMA FUMIKO, SAJIKI TOSHINOBU, IDE JUNICHI
• Format: Patent
• Language: English
• Published: 01.11.2007
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; CHEMISTRY; COMPOSITIONS BASED THEREON; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; GENERAL PROCESSES OF COMPOUNDING; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METALLURGY; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

PROBLEM TO BE SOLVED: To provide a porous bio-absorptive material, which is a thin film-like porous bio-absorptive material having a small average pore size and uniform size, and which is a dense structure having the maximum stress, and especially very useful as an adhesion preventive material. SOLUTION: This porous bio-absorptive material is formed of a bio-absorptive polymer obtained by gelatinizing bio-absorptive polymer with good solvent and poor solvent of the compatible bio-absorptive polymer, and freezing and drying the gelatinized bio-absorptive polymer to be made porous. This method of manufacturing the porous bio-absorptive material includes the steps of: gelatinizing bio-absorptive polymer with a mixed solvent of good solvent and poor solvent of compatible bio-absorptive polymer; and freezing and drying the gelatinized gel material to be made porous. COPYRIGHT: (C)2008,JPO&INPIT