Parenteral liquid administration set with non-air blocking filter
Intravenous solution filter unit
ApplicationNo. 098171 filed on 07/27/1993
US Classes:210/321.64, Plural diverse structured membranes within a single casing96/6, Membrane to degasify liquid96/219, And fluid filter210/321.75, Planar membrane210/321.84, Planar membrane210/346, Spaced wall-type filters210/436, Vented210/446, Axially aligned inlet and outlet210/455, Receptacle and modified spacing surface or support for filter medium210/472, Vented422/101, Including means for separating a constituent; e.g., filter, condenser, extractor, etc.604/126, By hydrophilic or hydrophobic filters604/406Filter or series thereof for liquid entering or leaving container
ExaminersPrimary: Lithgow, Thomas M.
Attorney, Agent or Firm
Foreign Patent References
International ClassesA61M 005/165
AbstractA self-priming filter holder for filtration of intravenous liquids is provided and is formed of one or two housing portions sealed to a core portion. The core portion has one or two ribbed surfaces forming a plurality of flow paths sealed at one end and open at a second end and at least one channel preferably larger than the flow paths. The channel(s) is in fluid communication with the flow paths and an outlet. An inlet is provided to the interior of the housing portion(s) which are sealed from the ribbed surfaces by hydrophilic membranes. The housing portion(s) can be provided with gas vents sealed with hydrophobic membranes. Fluids pass through the flow paths in one direction and through the channel(s) in an opposite direction to remove gas from the flow paths and channels prior to use.
Field of SearchMembrane to degasify liquid
DEGASIFYING MEANS FOR LIQUID
And fluid filter
Degasification of liquid
By liquid flow modifying or mechanical agitating
Receptacle and modified spacing surface or support for filter medium
Plural diverse structured membranes within a single casing
Axially aligned inlet and outlet
Spaced wall-type filters
Including means for separating a constituent; e.g., filter, condenser, extractor, etc.
By hydrophilic or hydrophobic filters
Filter or series thereof for liquid entering or leaving container