Skip to main content

Main menu

  • Home
  • Current issue
  • ERJ Early View
  • Past issues
  • For authors
    • Instructions for authors
    • Submit a manuscript
    • Author FAQs
    • Open access
    • COVID-19 submission information
  • Alerts
  • Podcasts
  • Subscriptions
  • ERS Publications
    • European Respiratory Journal
    • ERJ Open Research
    • European Respiratory Review
    • Breathe
    • ERS Books
    • ERS publications home

User menu

  • Log in
  • Subscribe
  • Contact Us
  • My Cart

Search

  • Advanced search
  • ERS Publications
    • European Respiratory Journal
    • ERJ Open Research
    • European Respiratory Review
    • Breathe
    • ERS Books
    • ERS publications home

Login

European Respiratory Society

Advanced Search

  • Home
  • Current issue
  • ERJ Early View
  • Past issues
  • For authors
    • Instructions for authors
    • Submit a manuscript
    • Author FAQs
    • Open access
    • COVID-19 submission information
  • Alerts
  • Podcasts
  • Subscriptions

A newly developed ultra-small portable oxygen concentrator with equivalent efficacy to the conventional device

Shohei Kawachi, Keisaku Fujimoto, Mahoko Sano
European Respiratory Journal 2020 56: 940; DOI: 10.1183/13993003.congress-2020.940
Shohei Kawachi
1Institute for Biomedical Sciences, Shinshu University, Matsumoto, Japan
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • For correspondence: 18hm205e@shinshu-u.ac.jp
Keisaku Fujimoto
2Department of Clinical Laboratory Sciences, Shinshu University School of Health Sciences, Matsumoto, Japan
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
Mahoko Sano
3Department of Biomedical Engineering, Graduate School of Science and Technology, Shinshu University, Matsumoto, Japan
  • Find this author on Google Scholar
  • Find this author on PubMed
  • Search for this author on this site
  • Article
  • Info & Metrics
Loading

Abstract

Background: Current portable oxygen concentrators (POC) restrict physical activity in patients prescribed long-term oxygen therapy because of their large size and weight. We have developed an ultra-small POC that is 1/6 the volume and 1/3 the weight of conventional POC and that can be carried on the back [W190 × D60 × H220 mm, 1.87 kg].

Objectives: We examined whether our POC has equivalent efficacy to provide oxygen to patients with chronic lung disease in comparison to conventional POC despite its reduced size and weight.

Methods: Patients with chronic obstructive pulmonary disease (COPD) (n = 18), interstitial lung disease (n = 7), bronchial asthma (n = 2), and non-respiratory diseases (n = 3) who showed desaturation during exercise were recruited. After examination with constant load exercise test (CLET) or shuttle walking test (SWT) under breathing room air, subjects performed the same exercise test under breathing 2 L/min oxygen provided by our POC or a conventional POC at random. The desaturation at standardized time near end-exercise (isotime) in each subject during CLET or SWT under breathing 2 L/min oxygen provided by the two POC were compared.

Results: Seventeen subjects performed CLET and thirteen subjects performed SWT. There were no significant differences in desaturation at isotime between the developed POC and conventional POC during CLET (isotime SpO2: room air 87.6% ± 0.9%, developed POC 89.9% ± 0.7%, conventional POC 91.1% ± 0.7%) or during SWT (isotime SpO2: room air 87.3% ± 1.7%, developed POC 89.4% ± 1.0%, conventional POC 90.7% ± 0.8%).

Conclusion: The newly developed ultra-small POC showed equivalent efficacy for oxygenation to conventional POC.

  • Chronic diseases
  • Hypoxia
  • Oxygen therapy

Footnotes

Cite this article as: European Respiratory Journal 2020; 56: Suppl. 64, 940.

This abstract was presented at the 2020 ERS International Congress, in session “Respiratory viruses in the "pre COVID-19" era”.

This is an ERS International Congress abstract. No full-text version is available. Further material to accompany this abstract may be available at www.ers-education.org (ERS member access only).

  • Copyright ©the authors 2020
Previous
Back to top
Vol 56 Issue suppl 64 Table of Contents
  • Table of Contents
  • Index by author
Email

Thank you for your interest in spreading the word on European Respiratory Society .

NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address.

Enter multiple addresses on separate lines or separate them with commas.
A newly developed ultra-small portable oxygen concentrator with equivalent efficacy to the conventional device
(Your Name) has sent you a message from European Respiratory Society
(Your Name) thought you would like to see the European Respiratory Society web site.
CAPTCHA
This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.
Alerts
Sign In to Email Alerts with your Email Address
Citation Tools
A newly developed ultra-small portable oxygen concentrator with equivalent efficacy to the conventional device
Shohei Kawachi, Keisaku Fujimoto, Mahoko Sano
European Respiratory Journal Sep 2020, 56 (suppl 64) 940; DOI: 10.1183/13993003.congress-2020.940

Citation Manager Formats

  • BibTeX
  • Bookends
  • EasyBib
  • EndNote (tagged)
  • EndNote 8 (xml)
  • Medlars
  • Mendeley
  • Papers
  • RefWorks Tagged
  • Ref Manager
  • RIS
  • Zotero

Share
A newly developed ultra-small portable oxygen concentrator with equivalent efficacy to the conventional device
Shohei Kawachi, Keisaku Fujimoto, Mahoko Sano
European Respiratory Journal Sep 2020, 56 (suppl 64) 940; DOI: 10.1183/13993003.congress-2020.940
del.icio.us logo Digg logo Reddit logo Technorati logo Twitter logo CiteULike logo Connotea logo Facebook logo Google logo Mendeley logo

Jump To

  • Article
  • Info & Metrics
  • Tweet Widget
  • Facebook Like
  • Google Plus One

More in this TOC Section

  • Minimal clinically important difference in Barthel dyspnoea after pulmonary rehabilitation in patients with Chronic Obstructive Pulmonary Disease
  • Benefits of high-flow nasal cannula oxygen therapy on exercise capacity following acute exacerbation in ILD patients
  • Effects of pulmonary rehabilitation on the sensory and affective dimension of dyspnea
Show more Rehabilitation and chronic care

Related Articles

Navigate

  • Home
  • Current issue
  • Archive

About the ERJ

  • Journal information
  • Editorial board
  • Reviewers
  • CME
  • Press
  • Permissions and reprints
  • Advertising

The European Respiratory Society

  • Society home
  • myERS
  • Privacy policy
  • Accessibility

ERS publications

  • European Respiratory Journal
  • ERJ Open Research
  • European Respiratory Review
  • Breathe
  • ERS books online
  • ERS Bookshop

Help

  • Feedback

For authors

  • Instructions for authors
  • Submit a manuscript
  • ERS author centre

For readers

  • Alerts
  • Subjects
  • Podcasts
  • RSS

Subscriptions

  • Accessing the ERS publications

Contact us

European Respiratory Society
442 Glossop Road
Sheffield S10 2PX
United Kingdom
Tel: +44 114 2672860
Email: journals@ersnet.org

ISSN

Print ISSN:  0903-1936
Online ISSN: 1399-3003

Copyright © 2021 by the European Respiratory Society