Development of Cu-Al-Mn-based superelastic guidewire with functionally graded property

Yuji Suto; Toshihiro Omori; Ryosuke Kainuma; K. Ishida; A. Furukawa; Y. Takahashi; K. Yamauchi; S. Yamashita

Development of Cu-Al-Mn-based superelastic guidewire with functionally graded property

Yuji Suto, Toshihiro Omori, Ryosuke Kainuma, K. Ishida, A. Furukawa, Y. Takahashi, K. Yamauchi, S. Yamashita

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A new class of medical guidewires with functionally graded properties from the tip to the end were developed using Cu-Al-Mh-based shape memory alloys (SMAs). The tip of the guidewire shows excellent superelasticity (SE), which is obtained by grain size control, while the end of the guidewire possesses high hardness and strength, which is obtained by ageing at around 200°C - 400°C. Furthermore, such characteristics from the tip to the end of the guidewire can be gradually varied by using a furnace with a temperature gradient. This guidewire with functionally graded properties shows excellent pushability and torquability and is considerably easier to handle than Ni-Ti SMA and stainless steel guidewires.

Original language	English
Title of host publication	Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003
Editors	S. Shrivastava
Pages	495-500
Number of pages	6
Publication status	Published - 2003 Dec 1
Event	Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003 - Anaheim, CA., United States Duration: 2003 Sep 8 → 2003 Sep 10

Other

Other	Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003
Country	United States
City	Anaheim, CA.
Period	03/9/8 → 03/9/10

Keywords

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

ASJC Scopus subject areas

Engineering(all)

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Development of Cu-Al-Mn-based superelastic guidewire with functionally graded property. / Suto, Yuji ; Omori, Toshihiro ; Kainuma, Ryosuke; Ishida, K.; Furukawa, A.; Takahashi, Y.; Yamauchi, K.; Yamashita, S.

Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003. ed. / S. Shrivastava. 2003. p. 495-500.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Suto, Y , Omori, T , Kainuma, R, Ishida, K, Furukawa, A, Takahashi, Y, Yamauchi, K & Yamashita, S 2003, Development of Cu-Al-Mn-based superelastic guidewire with functionally graded property. in S Shrivastava (ed.), Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003. pp. 495-500, Medical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003, Anaheim, CA., United States, 03/9/8.

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abstract = "A new class of medical guidewires with functionally graded properties from the tip to the end were developed using Cu-Al-Mh-based shape memory alloys (SMAs). The tip of the guidewire shows excellent superelasticity (SE), which is obtained by grain size control, while the end of the guidewire possesses high hardness and strength, which is obtained by ageing at around 200°C - 400°C. Furthermore, such characteristics from the tip to the end of the guidewire can be gradually varied by using a furnace with a temperature gradient. This guidewire with functionally graded properties shows excellent pushability and torquability and is considerably easier to handle than Ni-Ti SMA and stainless steel guidewires.",

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AU - Suto, Yuji

AU - Omori, Toshihiro

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AU - Furukawa, A.

AU - Takahashi, Y.

AU - Yamauchi, K.

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N2 - A new class of medical guidewires with functionally graded properties from the tip to the end were developed using Cu-Al-Mh-based shape memory alloys (SMAs). The tip of the guidewire shows excellent superelasticity (SE), which is obtained by grain size control, while the end of the guidewire possesses high hardness and strength, which is obtained by ageing at around 200°C - 400°C. Furthermore, such characteristics from the tip to the end of the guidewire can be gradually varied by using a furnace with a temperature gradient. This guidewire with functionally graded properties shows excellent pushability and torquability and is considerably easier to handle than Ni-Ti SMA and stainless steel guidewires.

AB - A new class of medical guidewires with functionally graded properties from the tip to the end were developed using Cu-Al-Mh-based shape memory alloys (SMAs). The tip of the guidewire shows excellent superelasticity (SE), which is obtained by grain size control, while the end of the guidewire possesses high hardness and strength, which is obtained by ageing at around 200°C - 400°C. Furthermore, such characteristics from the tip to the end of the guidewire can be gradually varied by using a furnace with a temperature gradient. This guidewire with functionally graded properties shows excellent pushability and torquability and is considerably easier to handle than Ni-Ti SMA and stainless steel guidewires.

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