Development of Medical Guide Wire of Cu-Al-Mn-Base Superelastic Alloy with Functionally Graded Characteristics

Yuji Sutou; Toshihiro Omori; Akihisa Furukawa; Yukinori Takahashi; Ryosuke Kainuma; Kiyoshi Yamauchi; Shuzo Yamashita; Kiyohito Ishida

doi:10.1002/jbm.b.10079

Development of Medical Guide Wire of Cu-Al-Mn-Base Superelastic Alloy with Functionally Graded Characteristics

Yuji Sutou, Toshihiro Omori, Akihisa Furukawa, Yukinori Takahashi, Ryosuke Kainuma, Kiyoshi Yamauchi, Shuzo Yamashita, Kiyohito Ishida

Research output: Contribution to journal › Article › peer-review

51 Citations (Scopus)

Abstract

A new type of medical guide wire with functionally graded hardness from the tip to the end was developed with the use of Cu-Al-Mn-based alloys. The superelasticity (SE) of the Cu-Al-Mn-based alloys in the tip is drastically improved by controlling the grain size, whereas the end of the wire is hardened using bainitic transformation by aging at around 200-400 °C. Therefore, the tip of the guide wire shows a superelasticity and its end has high stiffness. This guide wire with functionally graded characteristics shows excellent pushability and torquability, superior to that of the Ni-Ti guide wire.

Original language	English
Pages (from-to)	64-69
Number of pages	6
Journal	Journal of Biomedical Materials Research - Part B Applied Biomaterials
Volume	69
Issue number	1
DOIs	https://doi.org/10.1002/jbm.b.10079
Publication status	Published - 2004 Apr 15

Keywords

Bainitic transformation
Cu-Al-Mn-based shape memory alloy
Guide wire
High stiffness
Superelasticity

ASJC Scopus subject areas

Biomaterials
Biomedical Engineering

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Development of Medical Guide Wire of Cu-Al-Mn-Base Superelastic Alloy with Functionally Graded Characteristics. / Sutou, Yuji ; Omori, Toshihiro; Furukawa, Akihisa; Takahashi, Yukinori; Kainuma, Ryosuke; Yamauchi, Kiyoshi; Yamashita, Shuzo; Ishida, Kiyohito.

In: Journal of Biomedical Materials Research - Part B Applied Biomaterials, Vol. 69, No. 1, 15.04.2004, p. 64-69.

Research output: Contribution to journal › Article › peer-review

Sutou, Yuji ; Omori, Toshihiro ; Furukawa, Akihisa ; Takahashi, Yukinori ; Kainuma, Ryosuke ; Yamauchi, Kiyoshi ; Yamashita, Shuzo ; Ishida, Kiyohito. / Development of Medical Guide Wire of Cu-Al-Mn-Base Superelastic Alloy with Functionally Graded Characteristics. In: Journal of Biomedical Materials Research - Part B Applied Biomaterials. 2004 ; Vol. 69, No. 1. pp. 64-69.

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abstract = "A new type of medical guide wire with functionally graded hardness from the tip to the end was developed with the use of Cu-Al-Mn-based alloys. The superelasticity (SE) of the Cu-Al-Mn-based alloys in the tip is drastically improved by controlling the grain size, whereas the end of the wire is hardened using bainitic transformation by aging at around 200-400 °C. Therefore, the tip of the guide wire shows a superelasticity and its end has high stiffness. This guide wire with functionally graded characteristics shows excellent pushability and torquability, superior to that of the Ni-Ti guide wire.",

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AU - Kainuma, Ryosuke

AU - Yamauchi, Kiyoshi

AU - Yamashita, Shuzo

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AB - A new type of medical guide wire with functionally graded hardness from the tip to the end was developed with the use of Cu-Al-Mn-based alloys. The superelasticity (SE) of the Cu-Al-Mn-based alloys in the tip is drastically improved by controlling the grain size, whereas the end of the wire is hardened using bainitic transformation by aging at around 200-400 °C. Therefore, the tip of the guide wire shows a superelasticity and its end has high stiffness. This guide wire with functionally graded characteristics shows excellent pushability and torquability, superior to that of the Ni-Ti guide wire.

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Development of Medical Guide Wire of Cu-Al-Mn-Base Superelastic Alloy with Functionally Graded Characteristics

Abstract

Keywords

ASJC Scopus subject areas

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