Patent ID: 8382712
Filing Date: 2013-02-26
Classification: A61M

Abstract:
1. A filter device connected to a liquid supply line to filter and discharge an introduced liquid, the filter device comprising: an inflow tube having an inflow hole communicating with the liquid supply line and allowing a liquid introduced through the inflow hole to flow into an internal space of the filter device; a filter housing communicating with the inflow tube and communicating with the outside; an outlet tube having an outlet hole communicating with the filter housing, the outlet tube being disposed at a location opposite to the inflow tube, the outlet tube being spaced apart from the inflow tube substantially in parallel therewith to define a vertical space in the filter housing, the outlet tube allowing the liquid discharged from the filter housing to be transported to the outside; a hydrophilic filter located between the inflow tube and the vertical space in the filter housing, the hydrophilic filter filtering off solid impurities in the liquid introduced through the inflow hole; at least one hydrophobic filter located corresponding to at least one gas discharge hole provided in the filter housing, the hydrophobic filter allowing gas in the introduced liquid to be discharged to the outside before and/or after the liquid passes through the hydrophilic filter; and a blocking member for preventing gas in the liquid passing through the hydrophilic filter from flowing into the outlet tube, the blocking member being installed in the filter housing to block the outlet tube, the blocking member having a longitudinal passage formed in a center portion thereof so that the liquid is introduced into the outlet tube through the passage and discharged therefrom.