Patents by Inventor Kenneth Kensey

Kenneth Kensey 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).

  • Patent number: 6907772
    Abstract: A blood viscosity measuring system and methods for measuring blood viscosity monitors the change in height of one of two, oppositely-moving, columns of blood from the circulating blood of a patient and, given the dimensions of a capillary tube through which the blood flows and by detecting a single blood position of the other oppositely-moving column, determines the blood viscosity over a range of shears, especially low shears. The system includes a tube set (disposable or non-disposable) that includes a pair of riser tubes, a capillary tube of predetermined dimensions that is coupled between the riser tubes (or that forms a portion of one riser tube) and a valve mechanism for controlling the circulating flow of blood from the patient into the riser tubes.
    Type: Grant
    Filed: April 23, 2004
    Date of Patent: June 21, 2005
    Assignee: Rheologics, Inc.
    Inventors: Kenneth Kensey, William N. Hogenauer, Sangho Kim, Young Cho
  • Patent number: 6805674
    Abstract: A blood viscosity measuring system and method that monitors the rising head of a column of fluid representing a living being's blood in-vivo to determine the blood viscosity over a range of shears. The system includes a capillary tube, at least a portion of which is located within the vascular system of the being, and a riser tube, having a liquid therein coupled to the capillary tube. A sensor and associated microprocessor are provided to determine the change in the height of the liquid in the riser tube at plural points along the length of the tube from which the viscosity is calculated.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: October 19, 2004
    Assignee: Rheologics, Inc.
    Inventors: Kenneth Kensey, John E. Nash, Harold E. Clupper
  • Publication number: 20040194538
    Abstract: A blood viscosity measuring system and methods for measuring blood viscosity monitors the change in height of one of two, oppositely-moving, columns of blood from the circulating blood of a patient and, given the dimensions of a capillary tube through which the blood flows and by detecting a single blood position of the other oppositely-moving column, determines the blood viscosity over a range of shears, especially low shears. The system includes a tube set (disposable or non-disposable) that includes a pair of riser tubes, a capillary tube of predetermined dimensions that is coupled between the riser tubes (or that forms a portion of one riser tube) and a valve mechanism for controlling the circulating flow of blood from the patient into the riser tubes.
    Type: Application
    Filed: April 23, 2004
    Publication date: October 7, 2004
    Applicant: Rheologics, Inc.
    Inventors: Kenneth Kensey, William N. Hogenauer, Sangho Kim, Young Cho
  • Patent number: 6745615
    Abstract: A blood viscosity measuring system and methods for measuring blood viscosity monitors the change in height of one of two, oppositely-moving, columns of blood from the circulating blood of a patient and, given the dimensions of a capillary tube through which the blood flows and by detecting a single blood position of the other oppositely-moving column, determines the blood viscosity over a range of shears, especially low shears. The system includes a tube set (disposable or non-disposable) that includes a pair of riser tubes, a capillary tube of predetermined dimensions that is coupled between the riser tubes (or that forms a portion of one riser tube) and a valve mechanism for controlling the circulating flow of blood from the patient into the riser tubes.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: June 8, 2004
    Assignee: Rheologics, Inc.
    Inventors: Kenneth Kensey, William N. Hogenauer, Sangho Kim, Young Cho
  • Patent number: 6732573
    Abstract: An apparatus and method for determining the viscosity of the circulating blood of a living being over plural shear rates caused by a decreasing pressure differential by monitoring the changing weight of the blood, or the changing level of a column of blood over time. The apparatus and method utilize a riser, a capillary tube, a collector and a mass detector, such as a precision balance or a load cell, for monitoring the changing weight of a sample of fluid that flows through these components under the influence of the decreasing pressure differential; alternatively, the apparatus and method use a column level detector to monitor the changing level of the column of blood over time.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: May 11, 2004
    Assignee: Rheologics, Inc.
    Inventors: Sehyun Shin, Young Cho, Kenneth Kensey, William N. Hogenauer, Sangho Kim
  • Patent number: 6692437
    Abstract: A method for obtaining the viscosity of the circulating blood of a living being using an adulterated blood sample and a correlation factor obtained from a circulating blood viscometer.
    Type: Grant
    Filed: August 28, 2001
    Date of Patent: February 17, 2004
    Assignee: Rheologics, Inc.
    Inventors: Kenneth Kensey, Young Cho
  • Patent number: 6659965
    Abstract: A blood viscosity measuring system and method that monitors the rising head of a column of fluid representing a living being's blood in-vivo to determine the blood viscosity over a range of shears. The system includes, a capillary tube, at least a portion of which is located within the vascular system of the being, and a riser tube, having a liquid therein coupled to the capillary tube. A sensor and associated microprocessor are provided to determine the change in the height of the liquid in the riser tube at plural points along the length of the tube from which the viscosity is calculated.
    Type: Grant
    Filed: August 1, 2000
    Date of Patent: December 9, 2003
    Assignee: Rheologics, Inc.
    Inventors: Kenneth Kensey, John E. Nash, Harold E. Clupper
  • Patent number: 6624435
    Abstract: An apparatus and method for measuring the viscosity of Newtonian and non-Newtonian fluids over a range of shear rates, especially low shear rates, by monitoring two rising columns of fluid (Newtonian or non-Newtonian) that pass through respective capillaries having different lengths. Furthermore, a specialized column monitor is provided that uses multiple interrogation sources (e.g., lasers) and a single detector (e.g., a charge-coupled device (CCD) array) to continuously monitor both columns of fluid substantially simultaneously. In particular, the system includes a Y-connector to form two flow paths and wherein each flow path includes a tube that includes a riser tube, a capillary tube of predetermined dimensions and a valve in each for controlling the fluid flow in each path.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: September 23, 2003
    Assignee: Rheologics, Inc.
    Inventors: Kenneth Kensey, William N. Hogenauer, John E. Nash, Harold E. Clupper, Sangho Kim, Young Cho, Peter Randolph Hazard Stark, Roberto O. Pellizzari, Sergey Kruss
  • Publication number: 20030158500
    Abstract: Apparatus and methods for obtaining the viscosity of a fluid using a continuously decreasing pressure differential that subjects the fluid to a plurality of shear rates and allows data related to that movement to be easily collected and combined with the dimensions of a flow restrictor, through which the fluid passes, to calculate the fluid viscosity.
    Type: Application
    Filed: February 13, 2003
    Publication date: August 21, 2003
    Inventors: Kenneth Kensey, William N. Hogenauer
  • Patent number: 6598465
    Abstract: A scanning rheometer is presented for the rheological property measurement of electrorheological (ER) and magnetorheological (MR) fluids using a non-linear viscoplastic model, based on the fluid height variation with respect to time. The rheometer basically includes a static (e.g., an overhead reservoir) or a dynamic source of fluid, a channel or slit whose sides form electrodes which are in contact with the flowing ER fluid, or a capillary tube exposed to a static/alternating magnetic field for flowing MR fluids, a transfer tube, either one or two riser tubes, and a column level detector for monitoring the column of fluid as it moves in one of the riser tubes. The column level detector is coupled to a processor which analyzes, among other things, column height vs. time data to determine both viscosity and yield stress. The rheometer overcomes one of the major drawbacks of the conventional rheometer: the inability to produce the yield stress of the ER, or MR, fluid in an absolute zero shear rate range.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: July 29, 2003
    Assignee: Rheologics, Inc.
    Inventors: Seyhun Shin, Young Cho, Kenneth Kensey, William N. Hogenauer, Sangho Kim
  • Patent number: 6571608
    Abstract: An apparatus and method for determining the viscosity of a fluid over plural shear rates caused by a decreasing pressure differential by monitoring the movement of the fluid through a riser tube and a capillary tube. The movement can be monitored by detecting the changing weight of the fluid, using a precision balance or load cell, as it moves through the riser tube and capillary tube into a fluid collector; or, alternatively, the movement can be monitored by detecting the changing level of a fluid column in the riser tube using a column level detector. A processor then uses the changing weight or height data, along with the dimensions of the capillary tube and a dimension of the riser tube, to determine the viscosity of the fluid. In addition, apparatus and methods for determining fluid viscosity online and fluid mixture homogeneity online are also described.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: June 3, 2003
    Assignee: Rheologics, Inc.
    Inventors: Sehyun Shin, Young Cho, Kenneth Kensey, William N. Hogenauer, Sangho Kim
  • Patent number: 6564618
    Abstract: A scanning rheometer is presented for the Theological property measurement of electrorheological (ER) and magnetorheological (MR) fluids using a non-linear viscoplastic model, based on the fluid height variation with respect to time. The rheometer basically includes a static (e.g., an overhead reservoir) or a dynamic source of fluid, a channel or slit whose sides form electrodes which are in contact with the flowing ER fluid, or a capillary tube exposed to a static/alternating magnetic field for flowing MR fluids, a transfer tube, either one or two riser tubes, and a column level detector for monitoring the column of fluid as it moves in one of the riser tubes. The column level detector is coupled to a processor which analyzes, among other things, column height vs. time data to determine both viscosity and yield stress. The rheometer overcomes one of the major drawbacks of the conventional rheometer: the inability to produce the yield stress of the ER, or MR, fluid in an absolute zero shear rate range.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: May 20, 2003
    Assignee: Rheologics, Inc.
    Inventors: Sehyun Shin, Young Cho, Kenneth Kensey, William N. Hogenauer, Sangho Kim
  • Publication number: 20030078517
    Abstract: Various methods are provided for determining and utilizing the viscosity of the circulating blood of a living being over a range of shear rates for diagnostics and treatment, such as detecting/reducing blood viscosity, work of the heart, contractility of the heart, for detecting/reducing the surface tension of the blood, for detecting plasma viscosity, for explaining/countering endothelial cell dysfunction, for providing high and low blood vessel wall shear stress data, red blood cell deformability data, lubricity of blood, and for treating different ailments such as peripheral arterial disease in combination with administering to a living being at least one pharmaceutically acceptable agent. Agents pharmaceutically effective to regulate at least one of the aforementioned blood parameters are used to adjust distribution of a substance through the bloodstream.
    Type: Application
    Filed: April 20, 2001
    Publication date: April 24, 2003
    Inventor: Kenneth Kensey
  • Publication number: 20030066341
    Abstract: A scanning rheometer is presented for the rheological property measurement of electrorheological (ER) and magnetorheological (MR) fluids using a non-linear viscoplastic model, based on the fluid height variation with respect to time. The rheometer basically includes a static (e.g., an overhead reservoir) or a dynamic source of fluid, a channel or slit whose sides form electrodes which are in contact with the flowing ER fluid, or a capillary tube exposed to a static/alternating magnetic field for flowing MR fluids, a transfer tube, either one or two riser tubes, and a column level detector for monitoring the column of fluid as it moves in one of the riser tubes. The column level detector is coupled to a processor which analyzes, among other things, column height vs. time data to determine both viscosity and yield stress. The rheometer overcomes one of the major drawbacks of the conventional rheometer: the inability to produce the yield stress of the ER, or MR, fluid in an absolute zero shear rate range.
    Type: Application
    Filed: July 1, 2002
    Publication date: April 10, 2003
    Applicant: RHEOLOGICS, INC.
    Inventors: Sehyun Shin, Young Cho, Kenneth Kensey, William N. Hogenauer, Sangho Kim
  • Patent number: 6523396
    Abstract: An apparatus and method for determining the viscosity of a fluid over plural shear rates caused by a decreasing pressure differential by monitoring the movement of the fluid through a riser tube and a capillary tube. The movement can be monitored by detecting the changing weight of the fluid, using a precision balance or load cell, as it moves through the riser tube and capillary tube into a fluid collector; or, alternatively, the movement can be monitored by detecting the changing level of a fluid column in the riser tube using a column level detector. A processor then uses the changing weight or height data, along with the dimensions of the capillary tube and a dimension of the riser tube, to determine the viscosity of the fluid. In addition, apparatus and methods for determining fluid viscosity online and fluid mixture homogeneity online are also described.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: February 25, 2003
    Assignee: Rheologics, Inc.
    Inventors: Sehyun Shin, Young Cho, Kenneth Kensey, William N. Hogenauer, Sangho Kim
  • Publication number: 20030036711
    Abstract: A method for obtaining the viscosity of the circulating blood of a living being using an adulterated blood sample and a correlation factor obtained from a circulating blood viscometer.
    Type: Application
    Filed: August 28, 2001
    Publication date: February 20, 2003
    Inventors: Kenneth Kensey, Young Cho
  • Publication number: 20030005752
    Abstract: An apparatus and method for determining the viscosity of a fluid over plural shear rates caused by a decreasing pressure differential by monitoring the movement of the fluid through a riser tube and a capillary tube. The movement can be monitored by detecting the changing weight of the fluid, using a precision balance or load cell, as it moves through the riser tube and capillary tube into a fluid collector; or, alternatively, the movement can be monitored by detecting the changing level of a fluid column in the riser tube using a column level detector. A processor then uses the changing weight or height data, along with the dimensions of the capillary tube and a dimension of the riser tube, to determine the viscosity of the fluid. In addition, apparatus and methods for determining fluid viscosity online and fluid mixture homogeneity online are also described.
    Type: Application
    Filed: May 28, 2002
    Publication date: January 9, 2003
    Applicant: RHEOLOGICS, INC.
    Inventors: Sehyun Shin, Young Cho, Kenneth Kensey, William N. Hogenauer, Sangho Kim
  • Patent number: 6497669
    Abstract: An apparatus that allows a patient to blood let safely and automatically and which allows for the safe disposal of the withdrawn blood. The apparatus utilizes an intubator that couples to a blood vessel, a blood collector which contains a micro-biological inactivating agent and a blood conveyor which is coupled between the intubator and the blood collector for passing blood from the intubator to the blood collector.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: December 24, 2002
    Assignee: Rheologics, Inc.
    Inventor: Kenneth Kensey
  • Publication number: 20020184941
    Abstract: An apparatus and method for determining the viscosity of a fluid over plural shear rates caused by a decreasing pressure differential by monitoring the movement of the fluid through a riser tube and a capillary tube. The movement can be monitored by detecting the changing weight of the fluid, using a precision balance or load cell, as it moves through the riser tube and capillary tube into a fluid collector; or, alternatively, the movement can be monitored by detecting the changing level of a fluid column in the riser tube using a column level detector. A processor then uses the changing weight or height data, along with the dimensions of the capillary tube and a dimension of the riser tube, to determine the viscosity of the fluid. In addition, apparatus and methods for determining fluid viscosity online and fluid mixture homogeneity online are also described.
    Type: Application
    Filed: May 28, 2002
    Publication date: December 12, 2002
    Applicant: RHEOLOGICS, INC.
    Inventors: Sehyun Shin, Young Cho, Kenneth Kensey, William N. Hogenauer, Sangho Kim
  • Patent number: 6484565
    Abstract: An apparatus and method for determining the viscosity of a fluid over plural shear rates caused by a decreasing pressure differential by monitoring the movement of the fluid through a riser tube and a capillary tube. The movement can be monitored by detecting the changing weight of the fluid, using a precision balance or load cell, as it moves through the riser tube and capillary tube into a fluid collector; or, alternatively, the movement can be monitored by detecting the changing level of a fluid column in the riser tube using a column level detector. A processor then uses the changing weight or height data, along with the dimensions of the capillary tube and a dimension of the riser tube, to determine the viscosity of the fluid. In addition, apparatus and methods for determining fluid viscosity online and fluid mixture homogeneity online are also described.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: November 26, 2002
    Assignee: Drexel University
    Inventors: Sehyun Shin, Young Cho, Kenneth Kensey, William N. Hogenauer, Sangho Kim