The apparatus here illustrated is designed to evacuate pus, urine, bile or other fluids by suction after operations. It is provided with an extremely quiet running pump so that it may not disturb the sleep of a patient while maintaining an adequate vacuum to procure efficient drainage for days at a time. A valve permits adjustment of the amount of suction desired, while lubrication is maintained from oil reservoirs.
In addition to evacuating pus from the pleural cavity, the pump also maintains a gentle suction to prevent collapse of the lung, restoring respiratory function to the affected side and relieving much of the pain and cough in these cases. The quantity of drainage may be seen in the bottle, since none soils the dressings.
The apparatus is also useful in removing urine from the bladder after prostatectomy and in keeping the dressings dry and the patient more comfortable. In peritonitis, in gallbladder