SUMITH R WICKRAMASINGHE
Engineering in Marlboro, MA
License number
Massachusetts 16622
Issued Date
Apr 20, 1996
Type
Engineer in Training
Address
Address
Marlboro, MA 01752
Professional information
See more information about SUMITH R WICKRAMASINGHE at trustoria.com
Method And Apparatus For Removing Tumor Cells From Tumor Cell-Contaminated Stem Cell Products
Method And Apparatus For Removing Tumor Cells From Tumor Cell-Contaminated Stem Cell Products
US Patent:
6177019, Jan 23, 2001
Filed:
Feb 24, 1999
Appl. No.:
9/242857
Inventors:
Franco Castino - Sudbury MA
Sumith R. Wickramasinghe - Marlborough MA
Sumith R. Wickramasinghe - Marlborough MA
Assignee:
HemaSure Inc. - Marlborough MA
International Classification:
B01D 3700, B01D 2900
US Classification:
210767
Abstract:
A method for removing tumor cells from tumor cell-contaminated stem cell products is disclosed. One embodiment of the method relies on an in-line filtration device that includes a tumor cell reduction filter means, preferably comprised of one or more tumor cell reduction filter pads. The tumor cell reduction filter means provides at least a ten-fold reduction in tumor cells while allowing for at least a 30% recovery of stem cells in a filtered stem cell product.
Extra-Lumenal Crossflow Plasmapheresis Devices And Method Of Use Thereof
Extra-Lumenal Crossflow Plasmapheresis Devices And Method Of Use Thereof
US Patent:
5846427, Dec 8, 1998
Filed:
Oct 23, 1996
Appl. No.:
8/735966
Inventors:
Stephen B. Kessler - Princeton MA
Sumith Ranil Wickramasinghe - Marlborough MA
Sumith Ranil Wickramasinghe - Marlborough MA
Assignee:
HemaSure, Inc. - Marlborough MA
International Classification:
B01D 6302, B01D 6908
US Classification:
210645
Abstract:
Improved devices for blood separations are provided based on the use of hollow fiber membrane arrays in extra-lumenal crossflow filtration. Blood is processed extra-lumenally across an ordered array of microporous hollow fibers to separate cells from plasma. By use of extra-lumenal crossflow filtration with suitably oriented fibers, the separation device is more efficient than existing devices which benefits a patient or donor by reducing extracorporeal volume.