Picosecond laser fabrication of nitinol for coronary stent applications

N. Muhammad; D. Whitehead; F. Viejo; R. Abuaisha; A. Boor; W. Oppenlaendar; Z. Liu; L. Li

doi:10.2351/1.5062005

Picosecond laser fabrication of nitinol for coronary stent applications

N. Muhammad^*
, D. Whitehead
, F. Viejo
, R. Abuaisha
, A. Boor
, W. Oppenlaendar
, Z. Liu
, L. Li

^*Corresponding author for this work

FSE Research

UMIST
Swisstec AG

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

Abstract

Nitinol (a shape memory nickel-titanium alloy) is one of the desirable materials for medical stents applications, due to its high corrosion resistance, self-expansion and biocompatibility. The stents are commonly fabricated by using Nd:YAG laser cutting. As a result of long pulses (10^-3-10 ^-2 seconds) of these lasers, considerable post processing is required to remove heat affected zones and to improve surface finishes and geometry. This paper presents the feasibility and basic process characteristics of picosecond laser micromachining of nitinol tubes for coronary stent applications. In this study, dross-free cut of nitinol stents is demonstrated, also kerf width and topography analysis of the cut surface is presented. The picosecond laser ablation mechanism is also discussed.

Original language	English
Title of host publication	ICALEO 2010: 29th International Congress on Applications of Lasers and Electro-Optics
Subtitle of host publication	Congress Proceedings
Publisher	Laser Institute of America
Pages	1474-1479
Number of pages	6
ISBN (Print)	9780912035611
DOIs	https://doi.org/10.2351/1.5062005
Publication status	Published - 1 Sept 2010

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This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

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10.2351/1.5062005

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Muhammad, N., Whitehead, D., Viejo, F., Abuaisha, R., Boor, A., Oppenlaendar, W., Liu, Z., & Li, L. (2010). Picosecond laser fabrication of nitinol for coronary stent applications. In ICALEO 2010: 29th International Congress on Applications of Lasers and Electro-Optics: Congress Proceedings (pp. 1474-1479). Laser Institute of America. https://doi.org/10.2351/1.5062005

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title = "Picosecond laser fabrication of nitinol for coronary stent applications",

abstract = "Nitinol (a shape memory nickel-titanium alloy) is one of the desirable materials for medical stents applications, due to its high corrosion resistance, self-expansion and biocompatibility. The stents are commonly fabricated by using Nd:YAG laser cutting. As a result of long pulses (10-3-10 -2 seconds) of these lasers, considerable post processing is required to remove heat affected zones and to improve surface finishes and geometry. This paper presents the feasibility and basic process characteristics of picosecond laser micromachining of nitinol tubes for coronary stent applications. In this study, dross-free cut of nitinol stents is demonstrated, also kerf width and topography analysis of the cut surface is presented. The picosecond laser ablation mechanism is also discussed.",

author = "N. Muhammad and D. Whitehead and F. Viejo and R. Abuaisha and A. Boor and W. Oppenlaendar and Z. Liu and L. Li",

year = "2010",

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doi = "10.2351/1.5062005",

language = "English",

isbn = "9780912035611",

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Picosecond laser fabrication of nitinol for coronary stent applications. / Muhammad, N.; Whitehead, D.; Viejo, F. et al.
ICALEO 2010: 29th International Congress on Applications of Lasers and Electro-Optics: Congress Proceedings. Laser Institute of America, 2010. p. 1474-1479.

Research output: Chapter in Book/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Picosecond laser fabrication of nitinol for coronary stent applications

AU - Muhammad, N.

AU - Whitehead, D.

AU - Viejo, F.

AU - Abuaisha, R.

AU - Boor, A.

AU - Oppenlaendar, W.

AU - Liu, Z.

AU - Li, L.

PY - 2010/9/1

Y1 - 2010/9/1

N2 - Nitinol (a shape memory nickel-titanium alloy) is one of the desirable materials for medical stents applications, due to its high corrosion resistance, self-expansion and biocompatibility. The stents are commonly fabricated by using Nd:YAG laser cutting. As a result of long pulses (10-3-10 -2 seconds) of these lasers, considerable post processing is required to remove heat affected zones and to improve surface finishes and geometry. This paper presents the feasibility and basic process characteristics of picosecond laser micromachining of nitinol tubes for coronary stent applications. In this study, dross-free cut of nitinol stents is demonstrated, also kerf width and topography analysis of the cut surface is presented. The picosecond laser ablation mechanism is also discussed.

AB - Nitinol (a shape memory nickel-titanium alloy) is one of the desirable materials for medical stents applications, due to its high corrosion resistance, self-expansion and biocompatibility. The stents are commonly fabricated by using Nd:YAG laser cutting. As a result of long pulses (10-3-10 -2 seconds) of these lasers, considerable post processing is required to remove heat affected zones and to improve surface finishes and geometry. This paper presents the feasibility and basic process characteristics of picosecond laser micromachining of nitinol tubes for coronary stent applications. In this study, dross-free cut of nitinol stents is demonstrated, also kerf width and topography analysis of the cut surface is presented. The picosecond laser ablation mechanism is also discussed.

UR - https://www.scopus.com/pages/publications/78650316647

U2 - 10.2351/1.5062005

DO - 10.2351/1.5062005

M3 - Conference contribution

AN - SCOPUS:78650316647

SN - 9780912035611

SP - 1474

EP - 1479

BT - ICALEO 2010: 29th International Congress on Applications of Lasers and Electro-Optics

PB - Laser Institute of America

ER -

Picosecond laser fabrication of nitinol for coronary stent applications

Abstract

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