Chinese Journal of Tissue Engineering Research ›› 2010, Vol. 14 ›› Issue (48): 9051-9056.doi: 10.3969/j.issn.1673-8225.2010.48.029

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Design of respiratory trainer in perioperative period

Liu Xin, Zhang Hong, Chen Lan   

  1. School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai  200093, China
  • Online:2010-11-26 Published:2010-11-26
  • Contact: Chen Lan, Doctor, Associate professor, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China lanchen@usst.edu.cn
  • About author:Liu Xin, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China irenetalent@yahoo.cn Zhang Hong, School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China lanmao1016@126.com Liu Xin and Zhang Hong are equally contributed to this paper.
  • Supported by:

    the Innovation Experiment Foundation for College Students, No. 091025208*; Minimal Invasion Foundation*

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Abstract:

BACKGROUND: Because of the effect of narcotic analgesics, sedatives, brain injury and abdominal surgery in the perioperative period, shallow breathing is the most common symptom for the patients, which may lead to the decrease of forced vital capacity (FVC) and lung congestion. Thus, the patents will be more difficult to recover. Using the respiratory trainers during pre-surgery and post-surgery can improve the respiratory systems and decrease the incident of lung congestion.
OBJECTIVE: To summarize and analyze the respiratory trainers in perioperative period.
METHODS: A computer-based online search of CNKI, VIP and USPTO Patent Full-Text and Image Database was performed for articles published between 1977 and 2009 regarding respiratory trainers in perioperative period with key words “respiratory training, inspiratory capacity, respirator” in Chinese and “inhalation device, respiratory exerciser” in English. Repetitive studies were excluded. Patent structural design and theoretical evidence were summarized.
RESULTS AND CONCLUSION: A total of 15 studies and 15 patent designs were collected. This paper analyzed patent designs of respiratory trainers and summarized patent structural design and theoretical evidence. The design principles were divided into three types: airflow rate, total gas volume, and respiratory resistance produced by special structures. The advantages and disadvantages of three types of design were compared. In addition, the clinical application of respiratory trainers was reviewed.

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