Lumen stent and preform thereof, and methods for preparing lumen stent and preform thereof

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11389308
APP PUB NO 20170312101A1
SERIAL NO

15526509

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A lumen stent preform is provided using a plasma nitriding technology, a preparation method thereof, a method for preparing a lumen stent by using the preform, and a lumen stent obtained according to the method. The preform is manufactured by using pure iron or an iron alloy containing no strong nitrogen compound, has a hardness of 160-250HV0.05/10, and has a microstructure that is a deformed structure having a grain size number greater than or equal to 9 or a deformed structure after cold machining. Alternatively, the preform is an iron alloy containing a strong nitrogen compound, and has a microstructure that is a deformed structure having a grain size number greater than or equal to 9 or a deformed structure after cold machining. The lumen stent preform meets the requirements of a conventional stent for radial strength and plasticity, so that plasma nitriding is applicable to commercial preparation of a lumen stent.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
BIOTYX MEDICAL (SHENZHEN) CO LTDSHENZHEN GUANGDONG 518131

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Xianmiao Shenzhen, CN 14 52
Lin, Wenjiao Shenzhen, CN 30 40
Liu, Xiangdong Shenzhen, CN 50 467
Zhang, Deyuan Shenzhen, CN 50 245

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 Jan 19, 2026
7.5 Year Payment $3600.00 $1800.00 $900.00 Jan 19, 2030
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jan 19, 2034
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