Dual outlet oxygenator for treating blood in an extracorporeal blood circuit

摘要

An apparatus for oxygenating blood including a housing and an oxygenator bundle. The housing defines a primary chamber, a blood inlet port open to the primary chamber, and a blood outlet region. The outlet region includes a blood outlet port, an outlet chamber open to the outlet port, and a partition. The partition establishes spaced apart, first and second passageways from the primary chamber to the outlet chamber. The oxygenator bundle is disposed within the primary chamber. A blood flow path is formed from the blood inlet port, through the oxygenator bundle and to the blood outlet port, and includes first and second outlet flow paths within the outlet chamber via the first and second passageways, respectively. The first and second outlet blood flow paths merge at the blood outlet port. A dual port blood outlet is created, increasing mixing of blood immediately upstream of the outlet port.

主权项

1. An apparatus for oxygenating blood in an extracorporeal circuit, the apparatus comprising:
a housing defining a primary chamber about a central longitudinal axis, a blood inlet port fluidly open to the primary chamber, and a blood outlet region, wherein the blood outlet region includes:
a blood outlet port,an outlet chamber fluidly open to the blood outlet port,a partition separating the outlet chamber from the primary chamber and establishing spaced apart, first and second passageways from the primary chamber to the outlet chamber,wherein relative to a plane perpendicular to the central longitudinal axis and passing through the primary chamber and the outlet chamber, the outlet chamber and the partition each surrounds less than an entirety of the primary chamber; and an oxygenator bundle apart from the partition and disposed within the primary chamber, the oxygenator bundle including a plurality of gas exchange elements; wherein the apparatus establishes a blood flow path from the blood inlet port, through the oxygenator bundle, and to the blood outlet port, the blood flow path including first and second outlet blood flow paths within the outlet chamber via the first and second passageways, respectively, and further wherein the first and second outlet paths merge at the blood outlet port.