Patent ID: 8136704

Claim:
Device for applying an alum solution comprising at least a first chamber ( 1 ) containing a saturated alum solution ( 2 ) and alum crystals ( 3 ); a pump ( 4 ) capable of being operated by at least one push-button ( 5 ) and enabling the emission of a portion of the solution towards a part of a body, the pump ( 4 ) having at least one inlet ( 6 ) linking the pump ( 4 ) to the first chamber ( 1 ); at least one second chamber ( 8 ) into which the upper part ( 9 ) of said inlet ( 6 ) opens directly or through at least one conduit ( 7 ) having at least one suction point ( 16 ), said second chamber extending towards the bottom ( 10 ) of said first chamber; at least one passage ( 11 ) being arranged in the lower part ( 12 ) of said second chamber such as to make the interior volume ( 13 ) of said second chamber communicate with said first chamber, such that the saturated alum solution and the alum crystals at least partially fill said second chamber; said upper part ( 9 ) being fixed, so as to be sealed, directly or indirectly at the top of the first chamber or to the pump, such as to prevent any transfer of said alum solution between said chambers by any other way than said passage ( 11 ), wherein the interior volume ( 13 ) of the second chamber ( 8 ) between the inlet ( 6 ) and the highest point of the passage ( 11 ) represents at least three times the volume of the alum solution that the pump ( 4 ) can extract during a single stroke of the push-button.