Importance

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Abstract

A blood reservoir for the treatment and collection of blood from two different sources. The blood reservoir has a filter/defoamer core assembly comprised of a support structure disposed within an outer defoamer. A separator with an opening is located in the support structure, dividing the support structure into a first and second portions. A depth filter is located within the first portion of the support structure. The first portion of the support structure with the depth filter forms a cardiotomy blood chamber and the second portion with no depth filter forms a venous blood chamber. This filter/defoamer core assembly is placed within a clear outer shell which forms the reservoir. This outer shell has a cover with a venous blood inlet and plurality of cardiotomy inlets. The cardiotomy inlets are in fluid communication with the cardiotomy blood chamber. The venous blood inlet is in communication with a center tube which extends through the first portion of the support cage, through the opening in the separator and opens into the venous blood chamber. The filter/defoamer core assembly may be assembled and positioned within the reservoir shell without the use of adhesives or bonding agents. This blood reservoir is typically used in a system including components to oxygenate and alter the temperature of the blood.

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First Claim