The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 19, 2011
Filed:
Apr. 21, 2006
William J. Federspiel, Pittsburgh, PA (US);
Brian J. Frankowski, Imperial, PA (US);
Brendan C. Mack, Pasadena, CA (US);
Scott W. Morley, Pittsburgh, PA (US);
Meir Rosenberg, Newton, MA (US);
Robert G. Svitek, Pittsburgh, PA (US);
William J. Federspiel, Pittsburgh, PA (US);
Brian J. Frankowski, Imperial, PA (US);
Brendan C. Mack, Pasadena, CA (US);
Scott W. Morley, Pittsburgh, PA (US);
Meir Rosenberg, Newton, MA (US);
Robert G. Svitek, Pittsburgh, PA (US);
Alung Technologies, Inc., Pittsburgh, PA (US);
Abstract
A paracorporeal respiratory assist lung is configured with an annular cylindrical hollow fiber membrane (fiber bundle) that is rotated at rapidly varying speeds. Fluid (for example, blood) is introduced to the center of the device and is passed radially through the fiber bundle. The bundle is rotated at rapidly changing velocities with a rotational actuator (for example, a motor or magnetic coupling). The rotation of the fiber bundle provides centrifugal kinetic energy to the fluid giving the device pumping capabilities and may create Taylor vortexes to increase mass transfer. Rotation of the fiber bundle increases the relative velocity between the fluid and the hollow fibers and increases the mass transfer. The porosity of the fiber bundle may be varied to enhance gas exchange with the blood. Alternatively, a rotating core may be used with a stationary fiber bundle.