Patent ID: 8685319
Filing Date: 2014-04-01
Classification: A61M,B01D,Y10T

Abstract:
1. A combination oxygenator and arterial filter device for treating blood in an extracorporeal blood circuit, the device comprising: a housing; a core maintained within the housing and defining a central longitudinal axis; and a fiber bundle disposed within the housing, the fiber bundle formed by a plurality of hollow microporous fibers continuously helically wound about the core to generate a plurality of layers, each layer being composed of level wound fibers and each successive layer being radially outward of an immediately preceding layer relative to the central longitudinal axis; wherein the layers of the fiber bundle combine to define an oxygenator region and a depth filter region, the depth filter region being radially outward of the oxygenator region; and further wherein: a minimum gap spacing between axially adjacent fibers of the oxygenator region layers is greater than a minimum gap spacing between axially adjacent fibers of the depth filter region layers, the fiber bundle exhibits a filtration efficiency of not less than 92% in filtering particles having a particle size of about 45 microns.