Hybrid approach in prototyping functional medical safety devices: A case study

Yeong, Wai Yee; Shyan, John Yong Ming

doi:10.1080/17452750801942498

Cited by 3 publications

(1 citation statement)

References 32 publications

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“…Hence, it is capable of constructing complicated structures that are difficult to achieve using conventional subtractive methods [ 2 ]. Aside from the printing of structural material, the demand for the rapid preparation of functional devices has been raised in order to utilise the advantages of 3D printing [ 3 , 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Preparing of Interdigitated Microelectrode Arrays for AC Electrokinetic Devices Using Inkjet Printing of Silver Nanoparticles Ink

et al. 2017

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The surge in popularity of lab-on-chip applications has set a new challenge for the fabrication of prototyping devices, such as electrokinetic devices. In such devices, a micro-electrode is the key component. Currently, microelectromechanical systems (MEMS) processes such as lift-off and etching techniques are employed to prepare the micro-sized conductive patterns. These processes are time-consuming, require a material removal step, clean-room facilities, and the utilisation of harmful chemicals. On the other hand, rapid fabrication is required by researchers designing such devices to test their functionality. Additive manufacturing technology such as the inkjet printing of conductive material is one potential solution to achieve that objective. In this study, we report the utilisation of inkjet printing for the rapid prototyping of alternating current (AC) electrokinetic devices on a rigid glass substrate. The non-lithographical and vacuum-free process for the fabrication of a microfluidic device was demonstrated. The smallest feature size of 60 μm was successfully printed. The crystalline structure of the printed material under different curing temperatures was characterised. It was found that these treatment conditions affect electrical conductivity. Although a low-temperature sintering process was applied, low resistivity was obtained. An AC electrokinetics device for the manipulation of microparticles has been prepared to illustrate such printed silver micro-patterns. The results strongly support the idea that inkjet printing is a powerful and cost-effective prototyping tool for researchers who work with electrokinetic devices.

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Section: Introductionmentioning

confidence: 99%

Preparing of Interdigitated Microelectrode Arrays for AC Electrokinetic Devices Using Inkjet Printing of Silver Nanoparticles Ink

et al. 2017

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Vessel phantom fabrication using rapid prototyping technique for investigating thermal dosage profile in HIFU surgery

Jiang

2010

Rapid Prototyping Journal

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PurposeThe purpose of this paper is to propose a method for fabricating tumor vessel phantom and then investigate the thermal dosage profile caused by high‐intensity‐focused ultrasound (HIFU) surgery.Design/methodology/approachIn this paper, a thermal sensitive powder has been added to silicon‐based gel as a vessel phantom raw material for displaying the thermal dosage profile caused by HIFU. A fused deposition modeling system was used for fabricating the shell casting mold and the vessel arbor mold. The arbor prototype, made of wax, was solidified in the cavity of vessel arbor mold. The vessel phantom object embedded with the arbor prototype was created in the shell mold casting process. The vessel phantom was obtained by immersing the vessel phantom object into hot water (65°C) for melting the vessel arbor prototype. A HIFU experiment has been conducted for verifying the feasibility of displaying the thermal dosage profile of the fabricated vessel phantom. The HIFU experimental parameters including the driving power of HIFU transducer, ultrasound exposure duration and volume flow rate were used for investigating the thermal dosage variation by the perfusion of vessel phantom.FindingsThe properties of fabricated mimicking phantom agree well with those of human tissue. The experimental results show that the proposed method can fabricate the Y‐type vessel phantom. The proposed method has been proved as a promising fabrication process in fabricating the vessel phantom and it displays the thermal dosage profile in HIFU experiment.Originality/valueThe proposed method and the developed experimental apparatus are helpful for pre‐clinical HIFU surgery.

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Prototyping Strategies: Literature Review and Identification of Critical Variables

Christie

Jensen

Buckley

et al.

2012 ASEE Annual Conference &Amp; Exposition Proceedings

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Hybrid approach in prototyping functional medical safety devices: A case study

Cited by 3 publications

References 32 publications

Preparing of Interdigitated Microelectrode Arrays for AC Electrokinetic Devices Using Inkjet Printing of Silver Nanoparticles Ink

Preparing of Interdigitated Microelectrode Arrays for AC Electrokinetic Devices Using Inkjet Printing of Silver Nanoparticles Ink

Vessel phantom fabrication using rapid prototyping technique for investigating thermal dosage profile in HIFU surgery

Prototyping Strategies: Literature Review and Identification of Critical Variables

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