Blow molded venous drip chamber for hemodialysis

A blow-molded, plastic, venous chamber for hemodialysis, said chamber defining a plurality of first access ports adjacent a first end, a second access port at an opposed end, and a tubular, plastic filter positioned in close-fitting relation within said second access port to project into said chamber, at least one of said first access ports being positioned in separate, lateral relation to said chamber and extending from said first end toward said opposed end in said separate, lateral relation, while also communicating with said chamber at a position between said first and opposed ends, and in which portion of said chamber adjacent said first end is relatively flat and wide in cross-section, when compared with a portion of said chamber adjacent said opposed end, further in which an annular step is defined within said second access port, said tubular plastic filter defining an outer end portion that carries a radially outwardly projecting, annular flange proportioned to slidingly pass through said second access port, but to engage said annular step to limit inward travel of said filter to a predetermined, innermost position.

A blow-molded plastic blood chamber for hemodialysis, said chamber defining a first access port adjacent a first end which is an inlet blood port, and an outlet blood port at an opposed chamber end, said inlet port being positioned in separate lateral relation with said chamber, a conduit extending vertically from said inlet port toward said opposed end in said separate, lateral relation, which conduit curves to communicate with said chamber in horizontal direction at a position between said first and opposed ends, a portion of said chamber opposed to the area of communication of said conduit and chamber defining a curved shoulder to turn horizontal blood flow across said chamber gently upwardly, back toward said first end of the chamber, to define a gentle, circulatory flow of blood in said chamber.