ISO/TR TECHNICAL REPORT 16840-9 First edition 2015-07-01 Wheelchair seating - Part 9: Clinical interface pressure mapping guidelines for seating Sieges de fauteuils roulants - Partie 9: Lignes directrices pour I'utilisation d'un systeme de mappage depression Reference number IS0/TR 16840-9:2015(E) ISO IS02015 IS0/TR 16840-9:2015(E) COPYRIGHT PROTECTED DOCUMENT @ IS0 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either Iso at the address below or ISo's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 · CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org @ IS0 2015 - All rights reserved IS0/TR 16840-9:2015(E) Contents Page Foreword ..V Introduction. ..vi 1 Scope. ..1 2 Definitions and glossary ..1 2.1 Calibration 2.2 Coefficient of Variation (CoV). .1 2.3 Conformity. 2.4 Contact area 2 2.5 Creep. .2 2.6 Dispersion Index (DI) 2 2.7 Envelopment .2 2.8 Fomite 2 2.9 Hysteresis error 2 2.10 Immersion. .3 2.11 Pressure, stresses, and forces. 3 2.11.1 Axial strain (). .4 2.11.2 Perpendicular force (FP) .4 2.11.3 Pressure (p) b 2.11.4 Shear force (FS) 5 2.11.5 Shear stress (t) 2.11.6 Shear strain (y) .5 2.11.7 Friction force ..5 2.12 Sensor saturation .6 3 Applications .6 3.1 Cushion comparison. .6 3.2 Wheelchair set-up. .6 3.3 Client/caregiver education .7 3.4 Dynamic activity 3.5 Relevance to activities of daily living 7 4 Test protocol in a clinic .7 4.1 Infection control 4.1.1 Wash hands .8 4.1.2 Avoid cross-infection .8 4.1.3 Protect the mat .8 4.2 Setting up. ..8 4.2.1 Set up mat ..8 4.2.2 Prepare test protocol. .8 4.2.3 Prepare client file ..8 4.2.4 Be consistent 9 4.2.5 Check mat orientation .9 4.2.6 Check mat position. 9 4.2.7 Smooth mat into cushion ..9 4.2.8 Acclimatize test cushions 9 4.3 Transferring the client and getting the client into position 9 4.3.1 Transfer boards.. .9 4.3.2 Remove unnecessary items .9 4.3.3 Post-transfer checks. .10 4.3.4 Consistency between tests .10 4.3.5 Settling time. ..10 4.4 Introducing pressure mapping to the client .10 4.4.1 Position of the screen. ..10 4.5 Capturing data.. ..10 4.5.1 Identify position of bony prominences 10 iisn a Sandardizan rights reserved ii