Experimental investigation and computer simulation of wheelchair cushions

Seah Kangyu Clara, Tan En Si Ruth, Ian Gibson, Gao Zhan

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

This project aims to investigate the properties of 4 types of commonly used wheelchair cushions the Honeycomb (polymer), Roho (air), Jay (gel) and high density foam with regards to their capability in pressure distribution and postural support from the biomechanical point of view. These are possibly the 2 most important characteristics of wheelchair cushions for wheelchair users. Presence of a cushion cover and type of support structure the cushion is placed on are the variables that will be investigated. Displacement of the cushion surface over a series of loads comparable to human masses was measured. Displacement of the cushion surface was measured using a 3-D digitizer (Minolta Vivid 900) and computer software Rapidform 2001. Simulation of cushion properties was then carried out using software CosmosWorks 2005. Results indicate that the foam cushion exhibits the best pressure distribution characteristic, while cushion covers tend to decrease deformation and increase pressure on bone protrusions. Simulations also indicated that a symmetrical cushion appeals not to be ideal for users with asymmetrical weight distribution.

Original languageEnglish
Title of host publicationi-CREATe 2007
Subtitle of host publicationProceedings of the 1st International Convention on Rehabilitation Engineering and Assistive Technology in Conjunction with 1st Tan Tock Seng Hospital Neurorehabilitation Meeting
Place of PublicationNew York, NY
PublisherACM Publishing
Pages249-256
Number of pages8
ISBN (Print)9781595938527
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event1st International Convention on Rehabilitation Engineering and Assistive Technology in Conjunction with 1st Tan Tock Seng Hospital Neurorehabilitation Meeting, i-CREATe 2007 - Singapore, Singapore
Duration: 23 Apr 200726 Apr 2007
Conference number: 1

Conference

Conference1st International Convention on Rehabilitation Engineering and Assistive Technology in Conjunction with 1st Tan Tock Seng Hospital Neurorehabilitation Meeting, i-CREATe 2007
Abbreviated titlei-CREATe
CountrySingapore
CitySingapore
Period23/04/0726/04/07

Keywords

  • Cushion design
  • Simulation
  • Wheelchair

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