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In an informal article in a medical journal, Henry Heimlich introduced the concept of abdominal thrusts, commonly known as the Heimlich maneuver, to treat victims of choking.

Henry Heimlich

American thoracic surgeon (1920–2016)

Henry Judah Heimlich was an American thoracic surgeon and medical researcher. He is widely credited for the discovery of the Heimlich maneuver, a technique of abdominal thrusts for stopping choking, first described in 1974. He also invented the Micro Trach portable oxygen system…
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Abdominal thrusts

First aid procedure

Heimlich maneuver, also known as abdominal thrusts or Heimlich manoeuvre, is a first-aid procedure used to treat upper-airway obstructions by foreign objects. American doctor Henry Heimlich is often credited for its discovery. To perform a Heimlich maneuver, a rescuer stands…
Source: Wikipedia (CC BY-SA)

Choking

Mechanical obstruction of the flow of air from the environment into the lungs

Choking, also known as foreign body airway obstruction (FBAO), is a phenomenon that occurs when breathing is impeded by a blockage inside of the respiratory tract. An obstruction that prevents oxygen from entering the lungs results in oxygen deprivation. Although oxygen stored…
Source: Wikipedia (CC BY-SA)