Patent ID: 6123076
Filing Date: 2000-09-26
Classification: A61M,A62B,B01D

Abstract:
A medical ventilator filter, said filter including:a) a lower filter housing portion of a predetermined diameter, said lower filter housing including:i) a circular upstanding wall proximate the upper end of said lower filter housing portion, the outer diameter of said circular upstanding wall being slightly smaller than the diameter of said lower housing portion;ii) a ridge formed between the upstanding wall and the outer diameter of said lower housing portion; andb) an upper housing portion of a predetermined diameter, said upper housing including:i) a first circular down standing wall, the inner diameter of said first down standing wall portion being substantially the same as the outer diameter of said upstanding circular wall of said lower housing portion;ii) a second down standing wall, the outer diameter of said second down standing wall being less than the inner diameter of said circular upstanding wall portion of said lower housing portion, and less than the diameter of said first down standing wall;iii) a sheet of hydrophobic media sealingly mounted to said second down standing wall, and;iv) a sheet of filter media mounted to said second down standing wall immediately adjacent said sheet of hydrophobic media.