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Related Experiment Videos

A new device of incentive spirometry.

M Y Su1, C D Chiang, W L Huang

  • 1Department of Internal Medicine, Veterans General Hospital-Taichung, Taiwan, R.O.C.

Zhonghua Yi Xue Za Zhi = Chinese Medical Journal; Free China Ed
|October 1, 1991
PubMed
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This study introduces a novel, reusable incentive spirometer using pursed-lip breathing. The device effectively correlates with vital capacity, offering a cost-effective alternative for respiratory therapy, especially for COPD patients.

Area of Science:

  • Pulmonary Medicine
  • Respiratory Therapy Devices

Background:

  • Current incentive spirometers are single-use, costly, and focus solely on inspiratory effort.
  • A need exists for more accessible and comprehensive respiratory training tools.

Purpose of the Study:

  • To develop and evaluate a novel, low-cost incentive spirometer utilizing the pursed-lip breathing technique.
  • To assess the correlation between the device's performance and patients' vital capacity.

Main Methods:

  • A new reusable incentive spirometer was designed, incorporating a paper-based visual feedback system.
  • Patients performed deep, slow inspirations followed by a 5-second breath hold.
  • Pursed-lip breathing was used to maintain airflow, with blowing time recorded and compared to vital capacity in 96 cases.

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Main Results:

  • A strong positive correlation was found between vital capacity and paper blowing time (r = 0.87, p < 0.0001).
  • The new device demonstrated reusability and lower cost compared to existing devices.
  • The device equally emphasizes both inspiratory and expiratory phases of breathing.

Conclusions:

  • The novel pursed-lip breathing incentive spirometer is a promising, cost-effective tool for respiratory rehabilitation.
  • The device shows particular benefit for patients with Chronic Obstructive Pulmonary Disease (COPD).
  • Further clinical validation is warranted to confirm its efficacy.