FIELD: medicine.
SUBSTANCE: group of inventions relates to biodegradable particles for medical application, consisting of triblock copolymer of A1-B-A2 type, where each of A1 and A2 denotes biodegradable block copolymer composed by monomers containing glycolic acid, lactic acid and 6-hydroxy-caproic acid, where in said biodegradable block copolymer the share of structure generated from glycolic acid ranges from 10 to 30%, share of structure generated from lactic acid is not more than 65% and share of structure generated from 6-hydroxy-caproic acid ranges from 25 to 85%, and B means water-soluble block polymer, and to material for embolisation of vessels.
EFFECT: group of inventions provides improved flexibility of particles, reduced aggregation between particles and improved capacity of shape recovery in particles after compression.
9 cl, 14 dwg, 3 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| BIODEGRADABLE PARTICLE, SUBSTANCE FOR VASCULAR EMBOLISATION AND METHOD OF PRODUCING BIODEGRADABLE PARTICLES | 2012 |
|
RU2585104C2 |
| POLYMERIC MATERIAL OF MEDICAL PURPOSE FOR EMBOLIZATION | 2017 |
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RU2669801C1 |
| BIODEGRADABLE PARTICLES, MATERIAL FOR VASCULAR OCCLUSION AND METHOD OF PRODUCING BIODEGRADABLE PARTICLES | 2011 |
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RU2587326C2 |
| BIODEGRADABLE MATERIAL AND METHOD OF PRODUCING BIODEGRADABLE MATERIAL | 2013 |
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| POLYMERS CAPABLE OF RECOVERY AND REVERSIBLE THERMAL GEL-FORMATION | 2010 |
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| PHARMACEUTICAL COMPOSITION OF THE DELAYED AGENT RELEASING AND A METHOD OF ITS PREPARING | 1993 |
|
RU2128055C1 |
| BAB TRIBLOCK POLYMERS HAVING IMPROVED RELEASE CHARACTERISTICS | 2010 |
|
RU2575844C2 |
| BIODEGRADABLE COMPOSITION WITH PROLONGED RELEASE OF BIOLOGICALLY ACTIVE COMPOUND AND METHOD FOR ITS PREPARING | 2003 |
|
RU2290950C2 |
| BIODEGRADABLE MATERIAL AND METHOD OF PRODUCING BIODEGRADABLE MATERIAL | 2013 |
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RU2572849C1 |
| STIMULUS-SENSITIVE MATERIAL AND MEDICAL MATERIAL CONTAINING IT | 2013 |
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RU2625761C2 |
