Micro-Needle with Polygonal Structure of Micro-Channel for Stress and Blood or Drug Flow Optimization

  • Mohd Danial Ibrahim Universiti Malaysia Sarawak
  • Yana Shaheera Yunos Universiti Malaysia Sarawak
  • Nobuo Watanabe Shibaura Institute of Technology
  • Nur Alia Athirah Mohtadzar Universiti Malaysia Sarawak
  • Siti Noor Haizum Semait Press Metal Bintulu Sdn. Bhd.
  • Andrew Ragai Henry Rigit Universiti Malaysia Sarawak
  • Yuta Sunami Tokai University
  • Wong Lee Kwang Universiti Malaysia Sarawak
  • Mohd Rahmat A. Rahman Universiti Malaysia Sarawak
  • Muhammad Zaidi Mohtar Universiti Malaysia Sarawak

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Abstract

This paper presents micro-needle with different tip and inner structure of the needle for optimizations of pain stresses and drug or blood deliveries. The micro-needle comes with several design's parameters of length ranging from 5mm to 50mm and diameter ranging from 100µm to 200µm. A hollow micro-needle with four different tip designs which are 10°, D3-2, D6 and Quadruple are also designed to optimize the pain stresses parameters. In order to improve the flow deliveries, the inner structure of the channel is modified into various polygonal shape which is square, hexagon and dodecagon. It shows that, having less contact surface area between the skin and micro-needle's tip and polygonal shape of inner channel has better performance for both of the objectives. These feasible region of average velocity and stress of the micro-needle have satisfied in determining the best design for tip and inner channel of the micro-needle under certain conditions and constraints. The three-dimensional geometry study had improved the insertions performance and efficiencies in painless drug or blood deliveries.

Author Biographies
Mohd Danial Ibrahim

Department of Mechanical & Manufacturing, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Malaysia

Yana Shaheera Yunos

Department of Mechanical & Manufacturing, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Malaysia

Nobuo Watanabe

Department of Bioscience and Engineering, Shibaura Institute of Technology, Saitama Prefecture 337-8570, Japan

Nur Alia Athirah Mohtadzar

Department of Electrical & Electronic, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Malaysia

Siti Noor Haizum Semait

Press Metal Bintulu Sdn. Bhd., 97000 Samalaju, Malaysia

Andrew Ragai Henry Rigit

Department of Mechanical & Manufacturing, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Malaysia

Yuta Sunami

Department of Mechanical Engineering, Tokai University, Kanagawa Prefecture 259-1207, Japan

Wong Lee Kwang

Department of Mechanical & Manufacturing, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Malaysia

Mohd Rahmat A. Rahman

Department of Mechanical & Manufacturing, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Malaysia

Muhammad Zaidi Mohtar

Department of Mechanical & Manufacturing, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Malaysia

Keywords
Micro-needle, drug delivery, blood delivery, polygonal micro-needle, quadrupletip micro-needle.

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