Patents by Inventor Jay M. Lan

Jay M. Lan 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: 9180069
    Abstract: The invention provides container systems, kits and methods for peritoneal dialysis (PD) solutions. Such a system, for example, includes a first compartment that contains a PD osmotic agent and a second compartment that contains a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen. The invention provides, in other aspects, such systems, kits and methods that provide protective structure which inhibits breaking of a seal prior between the second compartment and an outlet of the system, prior to breaking of a seal between the first and second compartments.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: November 10, 2015
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Lynn E. Jensen, Spencer Clark, Olli Tuominen, Jay M. Lan
  • Patent number: 8801652
    Abstract: The invention provides, inter alia, automated medical methods and apparatus that test PD effluent in a flow path (e.g., with an APD system or CAPD setup) to detect, for example, the onset of peritonitis, based on optical characteristics of the effluent resolved at cellular scales of distance. For example, according to one aspect of the invention, an APD machine includes, in an effluent flow path, apparatus for early stage peritonitis detection comprising an illumination source and a detector. The source is arranged to illuminate peritoneal effluent in a chamber that forms part of the flow path, and the detector is arranged to detect illuminant scattered by the effluent. The detector detects that reflected or scattered illuminant at a cellular scale of resolution, e.g., on a scale such that separate cellular-sized biological (or other) components in the effluent can be distinguished from one another based on scattering events detected by the detector.
    Type: Grant
    Filed: July 23, 2007
    Date of Patent: August 12, 2014
    Assignee: Fresenius Medical Care Holding, Inc.
    Inventors: Frank J. Landherr, Lynn E. Jensen, Jay M. Lan
  • Patent number: 8777891
    Abstract: The invention provides, inter alia, automated medical methods and apparatus that test PD effluent in a flow path (e.g., with an APD system or CAPD setup) to detect, for example, the onset of peritonitis, based on optical characteristics of the effluent resolved at cellular scales of distance. For example, according to one aspect of the invention, an APD machine includes, in an effluent flow path, apparatus for early stage peritonitis detection comprising an illumination source and a detector. The source is arranged to illuminate peritoneal effluent in a chamber that forms part of the flow path, and the detector is arranged to detect illuminant scattered by the effluent. The detector detects that reflected or scattered illuminant at a cellular scale of resolution, e.g., on a scale such that separate cellular-sized biological (or other) components in the effluent can be distinguished from one another based on scattering events detected by the detector.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: July 15, 2014
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Frank J. Landherr, Jay M. Lan
  • Patent number: 8728023
    Abstract: The invention provides, inter alia, automated medical methods and apparatus that test PD effluent in a flow path (e.g., with an APD system or CAPD setup) to detect, for example, the onset of peritonitis, based on optical characteristics of the effluent resolved at cellular scales of distance. For example, according to one aspect of the invention, an APD machine includes, in an effluent flow path, apparatus for early stage peritonitis detection comprising an illumination source and a detector. The source is arranged to illuminate peritoneal effluent in a chamber that forms part of the flow path, and the detector is arranged to detect illuminant scattered by the effluent. The detector detects that reflected or scattered illuminant at a cellular scale of resolution, e.g., on a scale such that separate cellular-sized biological (or other) components in the effluent can be distinguished from one another based on scattering events detected by the detector.
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: May 20, 2014
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Frank J. Landherr, Jay M. Lan
  • Patent number: 8328784
    Abstract: The invention provides container systems, kits and methods for peritoneal dialysis (PD) solutions. Such a system, for example, includes a first compartment that contains a PD osmotic agent and a second compartment that contains a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen. The invention provides, in other aspects, such systems, kits and methods that provide protective structure which inhibits breaking of a seal prior between the second compartment and an outlet of the system, prior to breaking of a seal between the first and second compartments.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: December 11, 2012
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Lynn E. Jensen, Spencer Clark, Olli Tuominen, Jay M. Lan
  • Publication number: 20120259275
    Abstract: The invention provides container systems, kits and methods for peritoneal dialysis (PD) solutions. Such a system, for example, includes a first compartment that contains a PD osmotic agent and a second compartment that contains a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen. The invention provides, in other aspects, such systems, kits and methods that provide protective structure which inhibits breaking of a seal prior between the second compartment and an outlet of the system, prior to breaking of a seal between the first and second compartments.
    Type: Application
    Filed: June 14, 2012
    Publication date: October 11, 2012
    Applicant: FRESENIUS MEDICAL CARE HOLDINGS, INC.
    Inventors: Lynn E. Jensen, Spencer Clark, Olli Tuominen, Jay M. Lan
  • Patent number: 8267885
    Abstract: In one aspect, the invention provides methods and apparatus for delivering peritoneal dialysis (PD) solution (or other fluids), from a supply to a patient. A first pump, in fluid coupling with the supply, delivers PD solution from the supply to a “mesne” (or intermediate) measuring element, and generates signals indicative of a volume of that delivered PD solution. The mesne measuring element, in fluid coupling with the first pump, generates signals indicative of a volume of PD solution received from that pump. A second pump, fluidly coupled to the mesne measuring element, routes PD solution from the mesne measuring element for delivery to the patient.
    Type: Grant
    Filed: December 31, 2008
    Date of Patent: September 18, 2012
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Frank J. Landherr, Jay M. Lan
  • Patent number: 8052631
    Abstract: The invention provides container systems, kits and methods for peritoneal dialysis (PD) solutions. Such a system, for example, includes a first compartment that contains a PD osmotic agent and a second compartment that contains a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen. The invention provides, in other aspects, such systems, kits and methods that provide protective structure which inhibits breaking of a seal prior between the second compartment and an outlet of the system, prior to breaking of a seal between the first and second compartments.
    Type: Grant
    Filed: December 2, 2008
    Date of Patent: November 8, 2011
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Lynn E. Jensen, Olli Tuominen, Jay M. Lan
  • Patent number: 7935070
    Abstract: The invention provides container systems, kits and methods for peritoneal dialysis (PD) solutions. Such a system, for example, includes a first compartment that contains a PD osmotic agent and a second compartment that contains a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: May 3, 2011
    Assignee: Fresenius Medical Care North America
    Inventors: Lynn E. Jensen, Olli Tuominen, Jay M. Lan
  • Patent number: 7837666
    Abstract: The invention provides container systems, kits and methods for peritoneal dialysis (PD) solutions. Such a system, for example, includes a first compartment that contains a PD osmotic agent and a second compartment that contains a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen. The invention provides, in other aspects, such systems, kits and methods that provide protective structure which inhibits breaking of a seal prior between the second compartment and an outlet of the system, prior to breaking of a seal between the first and second compartments.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: November 23, 2010
    Assignee: Fresenius Medical Care North America
    Inventors: Lynn E. Jensen, Olli Tuominen, Jay M. Lan
  • Publication number: 20100168652
    Abstract: In one aspect, the invention provides methods and apparatus for delivering peritoneal dialysis (PD) solution (or other fluids), from a supply to a patient. A first pump, in fluid coupling with the supply, delivers PD solution from the supply to a “mesne” (or intermediate) measuring element, and generates signals indicative of a volume of that delivered PD solution. The mesne measuring element, in fluid coupling with the first pump, generates signals indicative of a volume of PD solution received from that pump. A second pump, fluidly coupled to the mesne measuring element, routes PD solution from the mesne measuring element for delivery to the patient.
    Type: Application
    Filed: December 31, 2008
    Publication date: July 1, 2010
    Applicant: FRESENIUS MEDICAL CARE HOLDINGS, INC.
    Inventors: Frank J. Landherr, Jay M. Lan
  • Publication number: 20090264854
    Abstract: The invention provides container systems, kits and methods for peritoneal dialysis (PD) solutions. Such a system, for example, includes a first compartment that contains a PD osmotic agent and a second compartment that contains a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen. The invention provides, in other aspects, such systems, kits and methods that provide protective structure which inhibits breaking of a seal prior between the second compartment and an outlet of the system, prior to breaking of a seal between the first and second compartments.
    Type: Application
    Filed: April 14, 2009
    Publication date: October 22, 2009
    Applicant: Fresenius Medical Care Holdings, Inc.
    Inventors: Lynn E. Jensen, Spencer Clark, Olli Tuominen, Jay M. Lan
  • Publication number: 20090078592
    Abstract: The invention provides container systems, kits and methods for peritoneal dialysis (PD) solutions. Such a system, for example, includes a first compartment that contains a PD osmotic agent and a second compartment that contains a PD buffer agent. The compartments maintain their respective contents separately from one another for purposes of transport, storage and/or sterilization. However, the compartments are fluidly couplable, so that their respective contents can be combined with one another, e.g., following sterilization of the agents and prior to their introduction into the patient's abdomen. The invention provides, in other aspects, such systems, kits and methods that provide protective structure which inhibits breaking of a seal prior between the second compartment and an outlet of the system, prior to breaking of a seal between the first and second compartments.
    Type: Application
    Filed: December 2, 2008
    Publication date: March 26, 2009
    Applicant: FRESENIUS MEDICAL CARE NORTH AMERICA
    Inventors: Lynn E. Jensen, Olli Tuominen, Jay M. Lan
  • Publication number: 20080183126
    Abstract: The invention provides, inter alia, automated medical methods and apparatus that test PD effluent in a flow path (e.g., with an APD system or CAPD setup) to detect, for example, the onset of peritonitis, based on optical characteristics of the effluent resolved at cellular scales of distance. For example, according to one aspect of the invention, an APD machine includes, in an effluent flow path, apparatus for early stage peritonitis detection comprising an illumination source and a detector. The source is arranged to illuminate peritoneal effluent in a chamber that forms part of the flow path, and the detector is arranged to detect illuminant scattered by the effluent. The detector detects that reflected or scattered illuminant at a cellular scale of resolution, e.g., on a scale such that separate cellular-sized biological (or other) components in the effluent can be distinguished from one another based on scattering events detected by the detector.
    Type: Application
    Filed: January 25, 2008
    Publication date: July 31, 2008
    Applicant: FRESENIUS MEDICAL CARE HOLDINGS, INC.
    Inventors: Frank J. Landherr, Jay M. Lan
  • Publication number: 20080183127
    Abstract: The invention provides, inter alia, automated medical methods and apparatus that test PD effluent in a flow path (e.g., with an APD system or CAPD setup) to detect, for example, the onset of peritonitis, based on optical characteristics of the effluent resolved at cellular scales of distance. For example, according to one aspect of the invention, an APD machine includes, in an effluent flow path, apparatus for early stage peritonitis detection comprising an illumination source and a detector. The source is arranged to illuminate peritoneal effluent in a chamber that forms part of the flow path, and the detector is arranged to detect illuminant scattered by the effluent. The detector detects that reflected or scattered illuminant at a cellular scale of resolution, e.g., on a scale such that separate cellular-sized biological (or other) components in the effluent can be distinguished from one another based on scattering events detected by the detector.
    Type: Application
    Filed: January 25, 2008
    Publication date: July 31, 2008
    Applicant: FRESENIUS MEDICAL CARE HOLDINGS, INC.
    Inventors: Frank J. Landherr, Jay M. Lan