Look what is iron lungs?

By MindStick

Iron lungs: Large, airtight devices aiding breathing, primarily for polio paralysis.

Polio treatment: Creates negative pressure, expanding and contracting chest.

Historical significance: Common in mid-20th century, before mechanical ventilators

Mechanism: Mimics breathing action by creating pressure changes.

Modern alternatives: Mechanical ventilators have largely replaced iron lungs.

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