초록 ▼

An underwater drainage apparatus is provided with an underwater seal formed by fluid from the pleural cavity of the patient. The dead air space within the underwater drainage apparatus is reduced to a minimum by dividing the collection chamber into a plurality of compartments and providing seals bet

An underwater drainage apparatus is provided with an underwater seal formed by fluid from the pleural cavity of the patient. The dead air space within the underwater drainage apparatus is reduced to a minimum by dividing the collection chamber into a plurality of compartments and providing seals between the compartments which are dissolved when liquid from the preceding compartment reaches the dissolvable seal. A passageway is provided in the air space directly above the underwater seal chamber to connect to the outlet to suction and a one way valve is provided in this passageway.

대표청구항 ▼

An underwater drainage apparatus comprising a container including, a collection chamber and an underwater seal chamber, said underwater seal chamber being disposed at the upper end of the container, a tube extending outwardly of the container from the lower portion of the underwater seal chamber, th

An underwater drainage apparatus comprising a container including, a collection chamber and an underwater seal chamber, said underwater seal chamber being disposed at the upper end of the container, a tube extending outwardly of the container from the lower portion of the underwater seal chamber, the outer end of the tube being adapted to be connected with the pleural cavity of a patient, an overflow passageway extending from the underwater seal chamber to the collection chamber, said underwater seal chamber having a bottom wall shaped to slope towards the end of the tube and means for restricting the height liquid within the underwater seal may pass upwardly through the tube so as to prevent liquid from reentering the pleural cavity of the patient, said means comprising reducing the dead air space within the collection chamber and above the underwater seal so that the maximum negativity developed within the pleural cavity cannot draw liquid within the underwater seal upwardly greater than one foot.