Fabrication of hollow microneedles by optical vortex illumination

Yoichi Oikawa; Kohei Toyoda; Dexiang Wang; Kunio Miyaji; Takashige Omatsu

doi:10.1117/12.2289035

16 February 2018 Fabrication of hollow microneedles by optical vortex illumination

Yoichi Oikawa, Kohei Toyoda, Dexiang Wang, Kunio Miyaji, Takashige Omatsu

Proceedings Volume 10519, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXIII; 1051915 (2018) https://doi.org/10.1117/12.2289035
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

Molding technologies are mostly employed to fabricate microneedles (MNs) for medical and cosmetic applications, such as drug delivery and skin care systems. However, such technologies are ill suited for bioabsorbable materials with high viscosity, thus, there is no report concerning hollow bioabsorbable MNs, so far.

We propose a novel laser processing technology, which enables us to fabricate a hollow bioabsorbable MN by simply irradiating both optical vortex for fabricating MNs and Gaussian beam for drilling holes on a hyaluronic acid sheet.

Conference Presentation

Citation Download Citation

Yoichi Oikawa, Kohei Toyoda, Dexiang Wang, Kunio Miyaji, and Takashige Omatsu "Fabrication of hollow microneedles by optical vortex illumination", Proc. SPIE 10519, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXIII, 1051915 (16 February 2018); https://doi.org/10.1117/12.2289035

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