Effect of Inner Diameter and Anticoagulation Coating in a Microneedle on its Blood Suction Performance
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- Aoyagi Seiji
- Kansai University
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- Nomura Ryosuke
- Murata Machinery, Ltd.
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- Takahashi Tomokazu
- Kansai University
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- Suzuki Masato
- Kansai University
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<p>As a part of the development of a minimally invasive hollow microneedle designed to mimic a mosquito proboscis, we evaluated the relationship between the needle inner diameter (ID) and blood sucking performance. If the ID is thinned to reduce pain upon piercing skin, blood could clog the tube owing to coagulation, and a sufficient volume of blood might not be obtained. In this study, laser stereo-lithography is used to easily fabricate microtubes of several sizes, at 20–50 μm ID and a fixed length of 500 μm, through which human whole blood is sucked by a vacuum pump. The results indicate that the ID of the tube must be at least 20 μm to prevent hemolysis and at least 50 μm to enable extraction of 200 μL of blood, which is necessary for general blood tests. Moreover, anticoagulant coating applied on the inner wall prevents the clogging of blood and increases the volume of extracted blood.</p>
収録刊行物
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- Journal of Robotics and Mechatronics
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Journal of Robotics and Mechatronics 32 (2), 362-370, 2020-04-20
富士技術出版株式会社
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詳細情報 詳細情報について
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- CRID
- 1390003825175099648
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- NII論文ID
- 130007833340
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- NII書誌ID
- AA10809998
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- ISSN
- 18838049
- 09153942
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- NDL書誌ID
- 030368896
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可