Special Section Technical Briefs

A Three-Dimensional-Printed Home-Based Flexible Nasopharyngeal Explorer With Diamond Cuts1

[+] Author and Article Information
Hui Min Chua, Jun Hao Edmund Ong, Yan Bing Soh, Jing Chun Teo, Wei Yang Un, Bok Seng Yeow

Department of Biomedical Engineering,
National University of Singapore,

Hongliang Ren

Department of Biomedical Engineering,
National University of Singapore,
e-mail: ren@nus.edu.sg

Accepted and presented at The Design of Medical Devices Conference (DMD2015), April 13-16, 2015, Minneapolis, MN, USA.

2Corresponding author.

Manuscript received March 3, 2015; final manuscript received March 23, 2015; published online April 24, 2015. Editor: Arthur Erdman.

J. Med. Devices 9(2), 020935 (Jun 01, 2015) (2 pages) Paper No: MED-15-1128; doi: 10.1115/1.4030192 History: Received March 03, 2015; Revised March 23, 2015; Online April 24, 2015

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Grahic Jump Location
Fig. 5

Demonstration shows how the 3DOF in the z axis allows the capability for mediation of obstacles (refer to our webpage for videos). (a) t = n, (b) t = n + 1, (c) n + 2, and (d) n + 3.

Grahic Jump Location
Fig. 1

(a) Assembly of our device, (b) side view of device, (c) zooming portion (z axis)/front portion, (d) bending portion (x and y axes)/back portion, (e) embodiment of our prototype, and (f) primitive control box for prototype manipulation (concept testing)

Grahic Jump Location
Fig. 4

Specimen 1 being a sample of medical grade PU and specimen 2 is the prototyping material. Specifications to this extrusion test are not listed due to space constraints but will be available upon request.

Grahic Jump Location
Fig. 3

(a) The hemispherical workspace when the zooming portion is not contracted. (b) The decreased workspace when the zooming portion is contracted.

Grahic Jump Location
Fig. 2

(a) The initial 0 deg position where in no cables are in tension. (b) The final position of the manipulator under tension to reach a 90 deg bending angle.



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