Individual customization strategy accomplished by developing prototype of a laparoscopic forceps handle using additive manufacturing
ISSN: 1355-2546
Article publication date: 28 January 2020
Issue publication date: 14 May 2020
Abstract
Purpose
Laparoscopic surgeons suffer because of discomfited body posture while performing surgery and experience discomfort owing to lack of customized surgical instruments. Accordingly, this paper aims to recommend an individual customization strategy by developing an ergonomically designed laparoscopic forceps handle and thereby increase the comfort of surgeons.
Design/methodology/approach
Hand anthropometric parameters of 282 south Indian male subjects are used to customize the handle. uPrint and Objet260 Connex, which works based on fused deposition modeling and PolyJet, respectively, are used to fabricate the prototype of the handle. Design modifications include a pistol-type grip, the increased contact area between the hand and handle, and neutral wrist posture.
Findings
Ergonomic evaluation parameters such as grip, functionality, comfort and wrist posture using subjective ratings from laparoscopic surgeons were recorded and obtained average values of 4.1, 3.6, 4.1 and 4.1, respectively, based on a five-point ordinal scale. Additionally, stress analysis also confirms the safety of the handle based on von Mises stress criteria.
Research limitations/implications
Anthropometric data are limited to 282 subjects and subjective evaluation is conducted using a prototype, not the end-use product.
Originality/value
Evaluation using subjective rating confirms the ascendancy of a modified handle over the existing handle in terms of assessed parameters. The proposed individual customization strategy can be applied for other industrial hand tools to enhance comfort.
Keywords
Citation
M.P., S., Ranganathan, R. and Pugalendhi, A. (2020), "Individual customization strategy accomplished by developing prototype of a laparoscopic forceps handle using additive manufacturing", Rapid Prototyping Journal, Vol. 26 No. 4, pp. 689-697. https://doi.org/10.1108/RPJ-06-2019-0157
Publisher
:Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited