Title:
ZINC ALLOY PIPE MATERIAL, METHOD FOR MANUFACTURING SAME, STENT FORMED USING ZINC ALLOY PIPE MATERIAL, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2015/147183
Kind Code:
A1
Abstract:
[Problem]
To provide, as a metal material forming a medical instrument such as a stent, a bioabsorbable zinc alloy pipe material which is easily absorbed by the body after implantation in a body but is not too rapidly absorbed, and which has prescribed mechanical characteristics such as high strength, and has excellent workability in cold-working and the like processes; in addition, to provide a stent using this zinc ally pipe material.
[Solution]
Provided is a zinc alloy pipe material having a chemical composition that contains at least one element selected from a group comprising 0.1-5 mass% Al, 0.1-5 mass% Mn, 0.1-5 mass% Mg, and 0.1-5 mass% rare earths, with less than 0.05 mass% Fe, less than 0.1 mass% O, and the remainder being zinc and 0.1 mass% or less of unavoidable impurities. Also provided are a method for manufacturing this pipe material, a vasodilation stent using this pipe material, and a method for manufacturing this vasodilation stent.
Inventors:
TAKAHASHI HIROKO (JP)
YOSHIDA HIROKAZU (JP)
YOSHIDA HIROKAZU (JP)
Application Number:
PCT/JP2015/059415
Publication Date:
October 01, 2015
Filing Date:
March 26, 2015
Export Citation:
Assignee:
FURUKAWA ELECTRIC CO LTD (JP)
FURUKAWA TECHNO MAT CO LTD (JP)
FURUKAWA TECHNO MAT CO LTD (JP)
International Classes:
C22C18/04; A61F2/91; A61L31/00; C22F1/16; C22F1/00
Domestic Patent References:
| WO2012070659A1 | 2012-05-31 |
Foreign References:
| JP2010516414A | 2010-05-20 | |||
| JP2002020826A | 2002-01-23 | |||
| JP2002012932A | 2002-01-15 | |||
| JP2003183855A | 2003-07-03 |
Other References:
D. VOJTECH ET AL.: "Mechanical and corrosion properties of newly developed biodegradable Zn-based alloys for bone fixation", ACTA BIOMATERIALIA, vol. 7, no. 9, 14 May 2011 (2011-05-14), pages 3515 - 3522, XP055224979
PATRICK K. BOWEN ET AL.: "Zinc Exhibits Ideal Physiological Corrosion Behavior for Bioabsorbable Stents", ADVANCED MATERIALS, vol. 25, 14 May 2013 (2013-05-14), pages 2577 - 2582, XP055224983
PATRICK K. BOWEN ET AL.: "Zinc Exhibits Ideal Physiological Corrosion Behavior for Bioabsorbable Stents", ADVANCED MATERIALS, vol. 25, 14 May 2013 (2013-05-14), pages 2577 - 2582, XP055224983
Attorney, Agent or Firm:
IIDA, Toshizo et al. (JP)
Toshizo Iida (JP)
Toshizo Iida (JP)
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