Title:
STENT
Document Type and Number:
WIPO Patent Application WO/2012/020812
Kind Code:
A1
Abstract:
A stent is provided that is extremely useful and that exhibits excellent proof stress (elasticity limit stress) in practical use. The stent (1) is formed into a cylinder that can be expanded in a radial direction when placed into the lumen of a living body, and comprises a primary stent component (2) formed on a virtual cylindrical surface, the primary stent element (2) being manufactured from an alloy having a proof stress of 500 - 2,700 Mp. Alternatively, the primary stent element (2) is manufactured from an alloy containing at least one among gold, silver, copper, nickel, cobalt, or palladium, said alloy being an electroformed alloy having a cyclic fatigue strength of 1.5 times or more of a nickel material, or a nickel / cobalt alloy material. Therefore, the stent (1) can expand easily and uniformly in a radial direction, and is not easily squashed in the radial direction after expansion.
Inventors:
KINUTA SEICHIN (JP)
KAWABATA TAKASHI (JP)
KAWABATA TAKASHI (JP)
Application Number:
PCT/JP2011/068314
Publication Date:
February 16, 2012
Filing Date:
August 10, 2011
Export Citation:
Assignee:
OPTNICS PREC CO LTD (JP)
KINUTA SEICHIN (JP)
KAWABATA TAKASHI (JP)
KINUTA SEICHIN (JP)
KAWABATA TAKASHI (JP)
International Classes:
A61F2/915; A61L31/00; A61M29/02
Domestic Patent References:
| WO2009041691A1 | 2009-04-02 |
Foreign References:
| JP2007267844A | 2007-10-18 | |||
| JP2000008187A | 2000-01-11 | |||
| JP2006175211A | 2006-07-06 | |||
| JP2008539898A | 2008-11-20 | |||
| JP2007267844A | 2007-10-18 | |||
| JP2000008187A | 2000-01-11 |
Other References:
See also references of EP 2604228A4
Attorney, Agent or Firm:
NAKAJIMA, Jun et al. (JP)
Nakajima 淳 (JP)
Nakajima 淳 (JP)
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Claims: