Doctor Potain's [double] Vacuum Cleaner

Collin, c. 1890, complete set in its original box in black shagreen and purple felt with the mention "aspirator of Potain".
Device used for washing the pleura, the aspiration and evacuation of liquids during certain pleurisy or to evacuate urine from a retained bladder or gas from an intestine strangled by a hernia. It includes a metal piston syringe equipped with a two-way tip, a hollow metal rod with a double conduit branching into two branches each equipped with a tap. In a compartment hidden under a removable tray containing a set of 10 trocars with mandrels of different diameters and lengths, there is a tube covered with green silk, a black rubber tube whose end can be adjusted with various glass or metal tubes depending on the nature of the liquid collected. Finally, an aspirator needle which bears the mark of its manufacturer Collin*. Its inventor is Pierre Carl Potain (1825-1901), cardiologist of the hospitals of Paris, elected member of the Academy of Medicine in 1882 and of the Academy of Sciences in 1893. Very complete model, the interior of the box shows signs of wear, one of the two taps is broken.
Catalogue Maison Charrière Collin, 1894, p. 97, fig. 383, n° 10: "Aspirator of Dr. Potain, arranged to aspirate and inject".