Patents by Inventor Mark W. Bitensky
Mark W. Bitensky has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20150010897Abstract: A method for the storage of red blood cells provides for mixing an additive solution with packed red blood cells to create a suspension of red blood cells. The method further provides for reducing the oxygen in the suspension of red blood cells; and storing the suspension of red blood cells under oxygen-depleted storage.Type: ApplicationFiled: September 24, 2014Publication date: January 8, 2015Applicant: THE TRUSTEES OF BOSTON UNIVERSITYInventors: Mark W. BITENSKY, Tatsuro YOSHIDA
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Publication number: 20120077182Abstract: A method for the storage of red blood cells provides for mixing an additive solution with packed red blood cells to create a suspension of red blood cells. The method further provides for reducing the oxygen in the suspension of red blood cells; and storing the suspension of red blood cells under oxygen-depleted storage.Type: ApplicationFiled: December 2, 2011Publication date: March 29, 2012Inventors: MARK W. BITENSKY, Tatsuro Yoshida
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Patent number: 8071282Abstract: There is provided compositions and methods for the storage of red blood cells. The compositions are additive solutions comprising adenine, dextrose, mannitol, NaH2PO4, and optionally NaCl and/or NH4Cl. Composition are preferably used with oxygen-depletion refrigerated storage of red blood cells and may optionally be employed with nutrient supplements extending the useful shelf life of stored blood.Type: GrantFiled: May 13, 2005Date of Patent: December 6, 2011Assignee: The Trustees of Boston UniversityInventors: Mark W Bitensky, Tatsuro Yoshida
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Patent number: 7723017Abstract: There are provided methods and compositions for the storage of red blood cells. The compositions are metabolic supplements that are preferably added to refrigerated red blood cells suspended in an additive solution. Red blood cells are preferably stored under conditions of oxygen-depletion. Metabolic compositions comprises pyruvate, inosine, adenine, and optionally dibasic sodium phosphate and/or monobasic sodium phosphate.Type: GrantFiled: May 26, 2005Date of Patent: May 25, 2010Assignee: The Trustees of Boston UniversityInventors: Mark W Bitensky, Tatsuro Yoshida
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Patent number: 7517453Abstract: A microvascular network device comprising: a substrate; at least one microchannel; at least one opening to the microchannel for sample entry; at least one opening to the microchannel for sample exit; and an aspirator which causes the sample to traverse the microchannel.Type: GrantFiled: March 1, 2003Date of Patent: April 14, 2009Assignee: The Trustees of Boston UniversityInventors: Mark W Bitensky, Tatsuro Yoshida, Sergey S Shevkoplyas
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Patent number: 7208120Abstract: A cellular diagnostic array has been developed that provides accurate and reproducible measurements of the physical parameters of individual cells en masse, including cell membrane surface area, cell volume, and excess membrane. Three differing patterns are employed. In the first design, a gradient array having rectangular shaped channels is used to capture cells and readily show the ratio of volume to surface area for the captured cell. The second silicone rubber array provided by the present invention employs an array of wedge shaped pipettes, each of which captures an individual cell. The position of the cell within a wedge is enough to rapidly determine the cell's actual surface area and volume. A third type of cellular diagnostic array according to the present invention employs an array of channels designed to deform a cell to study how well the cell responds to repeated deformations.Type: GrantFiled: September 27, 2001Date of Patent: April 24, 2007Assignee: The Trustees of Boston UniversityInventors: Mark W. Bitensky, Tatsuro Yoshida, Michael G. Frank, Christopher V Gabel, Jure Derganc
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Patent number: 6946127Abstract: Disclosed are modified red blood cells which function as deployment platforms for important biomolecules. Such modified red blood cells can confer, for example, in vivo protection against exposure to an otherwise lethal nerve agent.Type: GrantFiled: August 2, 2002Date of Patent: September 20, 2005Assignee: Trustees of Boston UniversityInventors: Mark W. Bitensky, Tatsuro Yoshida
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Publication number: 20040168982Abstract: A microvascular network device comprising: a substrate; at least one microchannel; at least one opening to the microchannel for sample entry; at least one opening to the microchannel for sample exit; and an aspirator which causes the sample to traverse the microchannel.Type: ApplicationFiled: March 1, 2003Publication date: September 2, 2004Applicant: HEMANEXT, L.L.C.Inventors: Mark W. Bitensky, Tatsuro Yoshida, Sergey S. Shevkoplyas
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Publication number: 20030153074Abstract: There is provided methods and compositions for the storage of red blood cells. The compositions are metabolic supplements which are preferably added to refrigerated red blood cells suspended in an additive solution. Red blood cells are preferably stored under conditions of oxygen-depletion. Metabolic compositions comprises pyruvate, inosine, adenine, and optionally dibasic sodium phosphate and/or monobasic sodium phosphate.Type: ApplicationFiled: November 15, 2002Publication date: August 14, 2003Inventors: Mark W. Bitensky, Tatsuro Yoshida
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Publication number: 20030124504Abstract: There is provided compositions and methods for the storage of red blood cells. The compositions are additive solutions comprising adenine, dextrose, mannitol, NaH2PO4, and optionally NaCl and/or NH4Cl. Composition are preferably used with oxygen-depletion refrigerated storage of red blood cells and may optionally be employed with nutrient supplements extending the useful shelf life of stored blood.Type: ApplicationFiled: November 15, 2002Publication date: July 3, 2003Inventors: Mark W. Bitensky, Tatsuro Yoshida
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Publication number: 20030049242Abstract: Disclosed are modified red blood cells which function as deployment platforms for important biomolecules. Such modified red blood cells can confer, for example, in vivo protection against exposure to an otherwise lethal nerve agent.Type: ApplicationFiled: August 2, 2002Publication date: March 13, 2003Applicant: Trustees of Boston UniversityInventors: Mark W. Bitensky, Tatsuro Yoshida
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Patent number: 6506381Abstract: Disclosed are modified red blood cells which function as deployment platforms for important biomolecules. Such modified red blood cells can confer, for example, in vivo protection against exposure to an otherwise lethal nerve agent.Type: GrantFiled: July 5, 2000Date of Patent: January 14, 2003Assignee: Trustees of Boston UniversityInventors: Mark W. Bitensky, Tatsuro Yoshida
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Publication number: 20020142285Abstract: A cellular diagnostic array has been developed that provides accurate and reproducible measurements of the physical parameters of individual cells en masse, including cell membrane surface area, cell volume, and excess membrane. Three differing patterns are employed. In the first design, a gradient array having rectangular shaped channels is used to capture cells and readily show the ratio of volume to surface area for the captured cell. The second silicone rubber array provided by the present invention employs an array of wedge shaped pipettes, each of which captures an individual cell. The position of the cell within a wedge is enough to rapidly determine the cell's actual surface area and volume. A third type of cellular diagnostic array according to the present invention employs an array of channels designed to deform a cell to study how well the cell responds to repeated deformations.Type: ApplicationFiled: September 27, 2001Publication date: October 3, 2002Inventors: Mark W. Bitensky, Tatsuro Yoshida, Michael G. Frank, Christopher V. Gabel, Jure Derganc
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Patent number: 6162396Abstract: The present invention relates to a storage device and method for the long-term storage of blood and, more particularly, to a blood storage device and method capable of removing oxygen from the stored blood and thereby prolonging the storage life of the deoxygenated blood.Type: GrantFiled: April 26, 1997Date of Patent: December 19, 2000Assignee: The Regents of the University of CaliforniaInventors: Mark W. Bitensky, Tatsuro Yoshida
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Patent number: 5789151Abstract: Prolonged cold storage of red blood cells by oxygen removal and additive usage. A cost-effective, 4.degree. C. storage procedure that preserves red cell quality and prolongs post-transfusion in vivo survival is described. The improved in vivo survival and the preservation of adenosine triphosphate levels, along with reduction in hemolysis and membrane vesicle production of red blood cells stored at 4.degree. C. for prolonged periods of time, is achieved by reducing the oxygen level therein at the time of storage; in particular, by flushing the cells with an inert gas, and storing them in an aqueous solution which includes adenine, dextrose, mannitol, citrate ion, and dihydrogen phosphate ion, but no sodium chloride, in an oxygen-permeable container which is located in an oxygen-free environment containing oxygen-scavenging materials.Type: GrantFiled: May 15, 1997Date of Patent: August 4, 1998Assignee: The Regents of the University of CaliforniaInventors: Mark W. Bitensky, Tatsuro Yoshida
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Patent number: 5624794Abstract: Method using oxygen removal for extending the useful shelf-life of refrigerated red blood cells. A cost-effective, 4.degree. C. storage procedure that preserves red cell quality and prolongs post-transfusion in vivo survival is described. Preservation of adenosine triphosphate levels and reduction in hemolysis and in membrane vesicle production of red blood cells stored at 4.degree. C. for prolonged periods of time is achieved by removing oxygen therefrom at the time of storage; in particular, by flushing with an inert gas. Adenosine triphosphate levels of the stored red blood cells are boosted in some samples by addition of ammonium phosphate.Type: GrantFiled: June 5, 1995Date of Patent: April 29, 1997Assignee: The Regents of the University of CaliforniaInventors: Mark W. Bitensky, Tatsuro Yoshida
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Patent number: 5476764Abstract: Method using CO for extending the useful shelf-life of refrigerated red blood cells. Carbon monoxide is utilized for stabilizing hemoglobin in red blood cells to be stored at low temperature. Changes observed in the stored cells are similar to those found in normal red cell aging in the body, the extent thereof being directly related to the duration of refrigerated storage. Changes in cell buoyant density, vesiculation, and the tendency of stored cells to bind autologous IgG antibody directed against polymerized band 3 IgG, all of which are related to red blood cell senescence and increase with refrigerated storage time, have been substantially slowed when red blood cells are treated with CO. Removal of the carbon monoxide from the red blood cells is readily and efficiently accomplished by photolysis in the presence of oxygen so that the stored red blood cells may be safely transfused into a recipient.Type: GrantFiled: September 16, 1994Date of Patent: December 19, 1995Assignee: The Regents of the University of CaliforniaInventor: Mark W. Bitensky