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2 440 149

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(51)

IPC

A61L27/02(2006-01-01)

A61L27/12(2006-01-01)

B82B1/00(2006-01-01)

(21) (22)

Application

2010127730/15, 2010-07-06

(24)

Start date

2010-07-06

(22)

Actual filing date

2010-07-06

(45)

Published

2012-01-20

(72)

Inventor

Smirnov Valerij VjacheslavovichGol'Dberg Margarita AleksandrovnaBarinov Sergej Mironovich

(73)

Holder

Uchrezhdenie Rossijskoj Akademii Nauk Institut Metallurgii I Materialovedenija Im. A.A. Bajkova Ran

METHOD OF OBTAINING NANOSIZED POWDER FOR BIOMATERIALS Russian patent published in 2012 - IPC A61L27/02 A61L27/12 B82B1/00

Abstract RU 2440149 C1

FIELD: medicine.

SUBSTANCE: invention relates to medicine, in particular to calcium-phosphate ceramic materials, intended for manufacturing bone implants and/or replacement of defects in case of various bone pathologies. In order to reduce degree of aggregation and increase of specific surface area precipitated powders, obtained as a result of chemical interaction, are kept in mother liquor for not less than 14 days and washed with ethanol. After drying ultra-dispersive powders with specific surface area not less than 210 m²/g are obtained. By its composition nanosized powders consist of hydroxyapatite and calcium carbonate.

EFFECT: high specific surface of powders makes it possible to use them for obtaining biomaterials with fine-dispersive or nanocrystalline structure.

1 tbl, 1 ex

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RU 2 440 149 C1

Authors

Smirnov Valerij Vjacheslavovich

Gol'Dberg Margarita Aleksandrovna

Barinov Sergej Mironovich

Dates

2012-01-20—Published

2010-07-06—Filed