Medtronic, Inc.

Rena S Juliar

Jeanne S Pierson

A mass transfer device and method of construction thereof. The mass transfer device may be an oxygenator having a fiber bundle comprised of hollow gas permeable fibers. The method of making the fiber bundle used in the mass transfer device includes winding one or more hollow fibers around a supporting core which includes first and second core sections. First and second outer casing sections are mounted adjacent the exterior of the hollow fibers. The hollow fibers are then cut longitudinally in two circumferentially spaced locations to form first and second fiber bundles located between the first and second core and outer casing sections. The method results in the simultaneous construction of first and second fiber bundles which are useable in separate mass transfer devices.

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Corona, CA, United States of America

Rena S Juliar