这个词是什么意思？
Body ventilators that assist ventilation by applying intermittent subatmospheric pressure around the thorax, abdomen, or airway and periodically expand the chest wall and inflate the lungs. They are relatively simple to operate and do not require tracheostomy. These devices include the tank ventilators (iron lung), Portalung, Pneumowrap, and chest cuirass (tortoise shell).
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D015919 · MeSH 2026。
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