Bottle of Bulau

It was introduced by Bulau in the 1786, who was the first to discover the presence of a negative pressure in the pleural cavity.
   - Via de Ruggiero Trotula, 23, 84121 Salerno SA - Salerno
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Informazioni generali

It was introduced by Bulau in the 1786, who was the first to discover the presence of a negative pressure in the pleural cavity. The bottle of Bulau was perfected by Immerman in the 1887, to drain present liquids pus and airs in the pleaural cavitth. The system uses the principle of the solubility of gases in liquids. The bottle, filled one third with water, is equipped with a stopper traversed by two rigid tubes of different lengths. The long tube is submerged 2 cm in the water: the short tube is a few cm below the stopper. The longer is linked to a intrathoracic drain while the shorter allows the leak of the air from the pleural cavity and can be linked to an inhaling system. The bottle, to help the drainage, should be placed on the ground. With this system (called siphon system), air comes out from the pleural cavity with each exalation (the water gurgles), but it cannot return during inhalation, because it is blocked by the liquid returning back to the drainage tube. The aim of this instrument is to direct the fluid or air emissions from the thoracic cavity, and not vice ersa, in one direction

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Annalisa Lambiase 31/07/2018

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