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US 3,939,078 AGranted
Extracorporeal filter
AssigneesJohnson & Johnson, Purolator, Inc.
InventorsFrancis Martin Servas, Jorge Torres
Life of this patent
Estimating the term…
Abstract
An extracorporeal filter having improved characteristics for the positive elimination of gas bubbles from blood streams. The top of the filter housing is sloped to a high point where there is positioned an air vent. The inlet for the blood is positioned substantially in the center of the top portion and extends past the plane of the top portion into the filter housing.
Claims2
An extracorporeal blood filter having improved characteristics for removing excess gas from the blood being filtered comprising a filter media mounted in a housing;
- said housing having a straight, smooth, uniformly sloped top surface from a low point positioned at the circumference of said housing to a high point positioned at the circumference of said housing directly opposite said low point, an inlet for the blood positioned in the top surface, a gas vent positioned at said high point, said blood inlet having a portion extending below the sloped top surface into the housing, said portion being free and open and not in contact with any other part of said filter whereby gas escaping to the vent is directed away from the entering bloodstream.
Dependencies are inferred from the claim text.