Continuous aspiration device for clinical applications (Machine-translation by Google Translate, not legally binding)

摘要

Continuous suction device for clinical uses, essentially characterized by comprising a container provided with an external screw thread that receives as a nut a washer with upper inner flange, between which and the edge of the mouth is pressed another outer flange of a hollow plug of elastic and unassailable material filled with a colored liquid that transmits the volume differences of the elastic body to a capillary tube that appears to the outside, in which the level differences are manifested. (Machine-translation by Google Translate, not legally binding)