Degradable iron-base alloy support

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United States of America Patent

PATENT NO 10632232
APP PUB NO 20170340780A1
SERIAL NO

15534406

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Abstract

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A degradable iron-based alloy stent comprises an iron-based alloy substrate and a degradable polymer in contact with the surface of the substrate. The weight-average molecular weight of the degradable polymer is in the range of [1, 100]*104, and the polydispersity index of the degradable polymer is in the range of (1.0, 50]. The degradable polymer is selected from a degradable polyamino acid that can generate an acidic amino acid after degradation; or a mixture of the degradable polyamino acid and a degradable polyester, or a copolymer of monomers of the two; or a mixture of the degradable polyamino acid and a degradable polymer that does not generate acidic products after degradation, or a copolymer of the monomers of the two; or a mixture of the degradable polyamino acid, the degradable polyester and the degradable polymer that does not generate acidic products after degradation, or a copolymer of monomers of the three, or a mixture of a copolymer of monomers of any two of the three with the remaining one. The numerical ranges are in conformity with mathematical knowledge, i.e. [a, b] means being greater than or equal to a and being less than or equal to b; (a, b] means being greater than a and less than or equal to b; [a, b) means being greater than or equal to a, less than b, a redundant description will not be provided for the similarity text below.

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Patent Owner(s)

Patent OwnerAddress
BIOTYX MEDICAL (SHENZHEN) CO LTDSHENZHEN GUANGDONG 518000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Liping Shenzhen, CN 80 584
Sun, Hongtao Shenzhen, CN 31 184
Zhang, Deyuan Shenzhen, CN 50 245

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