Method for manufacturing bone-regeneration material comprising biodegradable fibers by using electrospinning method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11969521
APP PUB NO 20200289703A1
SERIAL NO

16840309

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A bone-regeneration material that contains calcium phosphate particles in a biodegradable fiber containing PLGA by using electrospinning. A PLGA resin is heated in a kneader to soften until the viscosity of the resin becomes 102 to 107 Pa·s. A powder of calcium phosphate fine particles is added and mixed with the softened PLGA resin, while the blade of the kneader rotates. The mixture is kneaded by applying thermal and mechanical energy to the mixture through the continuous rotation of the blade of the kneader in the heated state, and aggregations of the calcium phosphate fine particles are disintegrated to prepare a composite in which the calcium phosphate fine particles are dispersed in the PLGA resin. The composite is dissolved in a solvent to prepare a spinning solution. Electrospinning is performed on the spinning solution to manufacture biodegradable fibers having therein the calcium phosphate fine particles substantially uniformly dispersed.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
NATIONAL UNIVERSITY CORPORATION NAGOYA INSTITUTE OF TECHNOLOGYSHOWA-KU NAGOYA-SHI AICHI 466-0061
ORTHOREBIRTH CO LTD3-17-43 CHIGASAKI-HIGASHI TSUZUKI-KU YOKOHAMA-SHI KANAGAWA 224-0033

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kasuga, Toshihiro Nagoya, JP 33 382
Nishikawa, Yasutoshi Yokohama, JP 5 2

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Oct 30, 2027
7.5 Year Payment $3600.00 $1800.00 $900.00 Oct 30, 2031
11.5 Year Payment $7400.00 $3700.00 $1850.00 Oct 30, 2035
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00