An apparatus for measuring the flow of liquid, in particular urine, from a patient.

摘要

An apparatus for measuring the discharge of liquid, in particular urine, from a patient, and comprising: - a measuring vessel (1) having a bottom wall (20), a top wall (12, 25), side walls (22, 23) and an inlet opening (2) for the liquid and which is intended to define a state of maximum filling in which a blank portion of liquid in the container (1) has a minimum volume, - means (H) for emitting a first acoustic signal to the empty part of the liquid of the measuring vessel (1), - means (M) for recording or recording a second acoustic signal generated in the measuring container (1) in response to the first signal, - means (45) for determining a current amount of liquid in the measuring container (1) on the basis of the second acoustic signal, characterized in that the measuring vessel (1) has a measuring tube (5) having - a first opening (14), a second opening (15) and a third aber ture (16), said first opening (14) being arranged to allow flow of liquid into the measuring pipe (5) to define a surface (7) of liquid in the measuring tube (5), said second opening being (15) arranged to communicate with the part of the measuring container (1) empty of liquid at any time, said third opening (16) arranged to communicate with the means (M) for recording the second acoustic signal being, together defining said second (15) and third (16) openings, with the surface (7) of the liquid from the measuring tube (5), a resonance chamber into liquid to generate said second acoustic signal.