Patterning of Multi-slits on Pipes for Developing Fine Diameter Stents

Toshiyuki Horiuchi, Hiroshi Sakabe, Hiroshi Kobayashi

Abstract

Precise slit patterns were delineated on fine stainless steel pipes with an outer diameter of 100 μm. The aim of the research is to clarify the feasibility of fabricating stents with diameters of less than 1 mm by delineating precise multi-slit patterns on fine pipes. Using a laser scan exposure system, slit patterns with widths of 11-29 μm were successfully delineated as fundamental stent patterns. At first, the exposure shutter was opened just before the specimen was scanned. However, swells appeared at the pattern ends. For this reason, exposure program was changed to open the shutter after starting the specimen scan. As a result, swells were completely diminished. In addition to simple parallel slit patterns, alternatively positioned parallel slit patterns were homogeneously delineated. Because the delineation speed of the investigated method is not fast, an idea of scan projection lithography was also proposed. It is feasible to fabricate stents if the pipes are etched using the resist patterns as etching masks continuing to the lithography.

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Paper Citation


in Harvard Style

Horiuchi T., Sakabe H. and Kobayashi H. (2015). Patterning of Multi-slits on Pipes for Developing Fine Diameter Stents . In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2015) ISBN 978-989-758-071-0, pages 103-108. DOI: 10.5220/0005202601030108


in Bibtex Style

@conference{biodevices15,
author={Toshiyuki Horiuchi and Hiroshi Sakabe and Hiroshi Kobayashi},
title={Patterning of Multi-slits on Pipes for Developing Fine Diameter Stents},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2015)},
year={2015},
pages={103-108},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0005202601030108},
isbn={978-989-758-071-0},
}


in EndNote Style

TY - CONF
JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2015)
TI - Patterning of Multi-slits on Pipes for Developing Fine Diameter Stents
SN - 978-989-758-071-0
AU - Horiuchi T.
AU - Sakabe H.
AU - Kobayashi H.
PY - 2015
SP - 103
EP - 108
DO - 10.5220/0005202601030108