Abdominal thrusts and upwards". They argue that this may be easier to perform with less concern about injury to ribcage or upper abdominal organs. Self-administered abdominal thrusts by study participants produced similar pressures to those generated by first aiders. The highest pressures were produced by participants performing an abdominal thrust onto the back of a chair (115 cmHO). Abdominal thrusts Abdominal thrusts (also called the Heimlich maneuver or Heimlich manoeuvre, ) is a first aid procedure used to treat upper airway obstructions (or choking) by foreign objects. The term Heimlich maneuver is named after Dr. Henry Heimlich, who first described it in
Henry A. Smith Henry A. Smith Dr. Henry A. Smith (1830 – August 16, 1915) was a physician, poet, legislator and early settler of Seattle, best known today for his flowery translation of a speech by Chief Seattle (or Sealth or Si'ahl) that is still in print. In 1852, Dr. Smith traveled from Wooster, Ohio to Portland, Oregon Territory in a wagon train with his mother (Abigail Teaff Smith, b. 1792) and sister. In 1853, he settled at the north end of Elliott Bay, at what came to be known as "Smith's Cove" (later Smith Cove), deciding that it was a likely spot