Patents by Inventor David B. Lura

David B. Lura 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: 11313804
    Abstract: The invention relates to a fluid sensor apparatus and a related sensor card for determining and/or monitoring a pH and/or solute concentration in a fluid. The fluid sensor apparatus can be used in any application requiring the detection of fluid components or concentrations of solutes, and in an exemplary embodiment, is used to detect ammonia concentration and/or pH in dialysis fluid. The fluid sensor apparatus has a camera, a light source positioned opposite to the camera, and a receiving slot for positioning a removable sensor card between the camera and the light source such that both sides of the sensor card are exposed to the sampled fluid.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: April 26, 2022
    Assignee: Medtronic, Inc
    Inventors: David B. Lura, Shawn Kelley, Martin T. Gerber
  • Patent number: 11255831
    Abstract: The invention relates to a colorimetric gas detector for determining and monitoring gaseous substances. The colorimetric gas detector can be used in any application requiring the detection of substances in a gaseous environment. The colorimetric gas detector has a photodetector, a light source positioned opposite to the photodetector, and a receiving slot for positioning a colorimetric media between the camera and the light source.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: February 22, 2022
    Assignee: Medtronic, Inc.
    Inventors: Martin T. Gerber, David B. Lura, Shawn Kelley
  • Publication number: 20210338912
    Abstract: A system for measuring at least one fluid characteristic at various stages within a sorbent system that has a sorbent cartridge that has at least one material layer and at least one fluid passageway in at least one location in the sorbent system to provide a diverted sample stream from the various stages. At least one fluid characteristic of the diverted sample stream is measured.
    Type: Application
    Filed: July 16, 2021
    Publication date: November 4, 2021
    Applicant: Medtronic, Inc.
    Inventors: Thomas E. Meyer, David B. Lura, Bryant J. Pudil, Martin T. Gerber
  • Patent number: 11154648
    Abstract: A system for measuring at least one fluid characteristic at various stages within a sorbent system that has a sorbent cartridge that has at least one material layer and at least one fluid passageway in at least one location in the sorbent system to provide a diverted sample stream from the various stages. At least one fluid characteristic of the diverted sample stream is measured.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 26, 2021
    Assignee: Medtronic, Inc.
    Inventors: Thomas E. Meyer, David B. Lura, Bryant J. Pudil, Martin T. Gerber
  • Patent number: 11103626
    Abstract: The invention relates to an infusate holder for use in dialysis. The infusate holder can include one or more interior compartments for holding infusate containers or infusates. The interior compartments are aligned to cooperate with fluid connectors of a dialysis system, ensuring that the proper infusates are added to the dialysis system at a proper location.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: August 31, 2021
    Assignee: Medtronic, Inc.
    Inventors: David B. Lura, Martin T. Gerber, Christopher M. Hobot, Thomas E. Meyer, Jin Huang
  • Patent number: 10980930
    Abstract: The invention relates to fluid flow paths and fluid connectors for use with detachable containers that can be seated in an infusate caddy for use in a dialysis machine. The detachable containers can contain infusates or other solutes or materials such as disinfectants or cleaners, and can be conveniently seated in the infusate caddy. The detachable containers can be removed from the infusate caddy for restocking, cleaning, or resupply, as needed. The infusate caddy can be positioned or seated in a receiving compartment of a dialysis machine, and can also be removed, as needed. The fluid path and fluid connectors of the present invention provide the required fluid fittings, valve arrangements, pumps, and paddle assemblies for using the infusate caddy.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: April 20, 2021
    Assignee: Medtronic, Inc
    Inventors: David B. Lura, Christopher M. Hobot, Martin T. Gerber, Thomas E. Meyer
  • Publication number: 20210052798
    Abstract: A blood based solute monitoring system for measuring at least one blood solute species that has a first recirculation flow path in communication with a dialyzer. The first recirculation flow path is configured to allow a fluid to recirculate through a dialyzer such that the concentration of at least one solute species in the fluid becomes equilibrated to the solute species concentration of the blood compartment of the dialyzer. The blood solute monitoring system has at least one sensor to measure a fluid characteristic.
    Type: Application
    Filed: November 10, 2020
    Publication date: February 25, 2021
    Applicant: Medtronic, Inc.
    Inventors: Bryant J. Pudil, Thomas E. Meyer, David B. Lura, Martin T. Gerber
  • Patent number: 10905816
    Abstract: Systems and methods for managing the sodium concentration of a dialysate fluid during hemodialysis therapy and adjusting sodium concentration using a sodium management system to generate a sodium-modified fluid are provided. The systems and methods also provide a mechanism for controlled addition of sodium ions to the dialysate to generate a predetermined total sodium concentration in a dialysate.
    Type: Grant
    Filed: February 2, 2013
    Date of Patent: February 2, 2021
    Assignee: Medtronic, Inc.
    Inventors: Bryant J. Pudil, Martin T. Gerber, David B. Lura, Thomas E. Meyer
  • Patent number: 10888648
    Abstract: The invention relates to devices, systems, and methods for priming, disinfecting, and preparing dialysate and related fluids for use in dialysis. The dialysate and related fluids can be prepared from solutes obtained from infusate containers seated in an infusate caddy. The infusate caddy can be removably positioned in a receiving compartment of a dialysis machine. Similarly, the infusate containers containing the necessary solutes for preparing the dialysate and related fluids can also be removably positioned in the infusate caddy.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: January 12, 2021
    Assignee: Medtronic, Inc
    Inventors: David B. Lura, Christopher M. Hobot, Martin T. Gerber, Thomas E. Meyer
  • Patent number: 10881777
    Abstract: A blood based solute monitoring system for measuring at least one blood solute species that has a first recirculation flow path in fluid communication with a dialyzer. The first recirculation flow path is configured to allow a fluid to recirculate through a dialyzer such that the concentration of at least one solute species in the fluid becomes equilibrated to the solute species concentration of the blood in a blood compartment of the dialyzer. The blood solute monitoring system has at least one sensor to measure a fluid characteristic.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: January 5, 2021
    Assignee: Medtronic, Inc.
    Inventors: Bryant J. Pudil, Thomas E. Meyer, David B. Lura, Martin T. Gerber
  • Patent number: 10874788
    Abstract: The invention relates to an infusate caddy for carrying, organizing, and operating infusate containers containing solutes for preparing dialysate and related fluids for use in dialysis. The infusate containers can be seated in the infusate caddy, and the infusate containers removed from the infusate caddy for restocking, cleaning, or resupply, as needed. The infusate caddy can be positioned or seated in a receiving compartment of a dialysis machine, and can also be removed, as needed, from the dialysis machine.
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: December 29, 2020
    Assignee: Medtronic, Inc.
    Inventors: David B. Lura, Christopher M. Hobot, Martin T. Gerber, Thomas E. Meyer
  • Publication number: 20200400584
    Abstract: The invention relates to sensor cards for determining and/or monitoring solute concentration and/or pH of a fluid based on an optically observable change of a sensing membrane or colorimetric material in the presence of ions in solution. The sensor cards can be placed in a fluid sensor apparatus and used to determine the solute concentration and/or pH of any fluid, such as dialysate.
    Type: Application
    Filed: September 1, 2020
    Publication date: December 24, 2020
    Applicant: Medtronic, Inc.
    Inventors: David B. Lura, Shawn Kelley
  • Patent number: 10850016
    Abstract: Systems and methods for cleaning and disinfecting a medical therapy device that delivers any one of hemodialysis, hemodiafiltration and hemofiltration. The system has a base module that has at least one segment of a controlled compliant flow path and at least one pair of jumpered ports configured on the base module. One or more components have connections connectable to the jumpered ports of the base module to provide for fluid communication between the segment of the controlled compliant flow path in the base module and a flow path defined by the one or more components. The base module is connected to the one or more components that define a flow path configurable for carrying out in part at least one function performed during any one of hemodialysis, hemodiafiltration or hemofiltration.
    Type: Grant
    Filed: February 1, 2013
    Date of Patent: December 1, 2020
    Assignee: MEDTRONIC, INC.
    Inventors: Thomas E. Meyer, David B. Lura, Bryant J. Pudil, Martin T. Gerber, Mark F. Daniels
  • Patent number: 10744249
    Abstract: Systems and methods for cleaning and disinfecting a medical therapy device that delivers any one of hemodialysis, hemodiafiltration and hemofiltration. The system has a base module that has at least one segment of a controlled compliant flow path and at least one pair of jumpered ports configured on the base module. One or more components have connections connectable to the jumpered ports of the base module to provide for fluid communication between the segment of the controlled compliant flow path in the base module and a flow path defined by the one or more components. The base module is connected to the one or more components that define a flow path configurable for carrying out in part at least one function performed during any one of hemodialysis, hemodiafiltration or hemofiltration.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: August 18, 2020
    Assignee: Medtronic, Inc.
    Inventors: Thomas E. Meyer, David B. Lura, Bryant J. Pudil, Martin T. Gerber, Mark F. Daniels
  • Publication number: 20200188566
    Abstract: The invention relates to infusate containers and related systems and methods for housing infusates that can be added to a fluid flow path for use during dialysis. The infusate containers can include a filter partitioning the containers into a first and second compartment, a draw tube for drawing up fluid from a bottom portion, a cap, a fluid connector for delivery and withdrawal of fluid from the two compartments, and a fluid connector for connection to a dialysis system.
    Type: Application
    Filed: May 12, 2017
    Publication date: June 18, 2020
    Inventors: David B. LURA, Thomas E. MEYER, Jin HUANG, Yue Qiang XUE
  • Patent number: 10668202
    Abstract: Parallel modules for in-line recharging of sorbent materials using alternate duty cycles for a sorbent cartridge. The sorbent cartridge can have two or more modules contained therein having connectors connecting each of the modules. One or more of the modules can be reusable and the sorbent materials therein can be recharged.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: June 2, 2020
    Assignee: Medtronic, Inc.
    Inventors: Bryant J. Pudil, Martin T. Gerber, David B. Lura, Thomas E. Meyer
  • Patent number: 10664701
    Abstract: The invention relates to a gas bubble detector for determining gas bubbles in a fluid. The gas bubble detector can be used in any application requiring a determination whether gas bubbles exist in the fluid. The gas bubble detector has a photodetector, a light source, and a chamber in which the presence of gas bubbles are detected.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: May 26, 2020
    Assignee: Medtronic, Inc.
    Inventors: Martin T. Gerber, David B. Lura, Shawn Kelley
  • Patent number: 10583236
    Abstract: A blood based solute monitoring system for measuring at least one blood solute species that has a first recirculation flow path in fluid communication with a dialyzer. The first recirculation flow path is configured to allow a fluid to recirculate through a dialyzer such that the concentration of at least one solute species in the fluid becomes equilibrated to the solute species concentration of the blood in a blood compartment of the dialyzer. The blood solute monitoring system has at least one sensor to measure a fluid characteristic.
    Type: Grant
    Filed: January 4, 2017
    Date of Patent: March 10, 2020
    Assignee: Medtronic, Inc.
    Inventors: Bryant J. Pudil, Thomas E. Meyer, David B. Lura, Martin T. Gerber
  • Patent number: 10561779
    Abstract: The invention relates to infusate containers and related systems and methods for housing infusates that can be added to a fluid flow path for use during dialysis. The infusate containers can include a filter partitioning the containers into a first and second compartment, a draw tube for drawing up fluid from a bottom portion, a cap, a fluid connector for delivery and withdrawal of fluid from the two compartments, and a fluid connector for connection to a dialysis system.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: February 18, 2020
    Assignee: Medtronic, Inc.
    Inventors: David B. Lura, Thomas E. Meyer, Jin Huang, Yue Qiang Xue
  • Patent number: 10561776
    Abstract: A portable dialysis cabinet for use in dialysis. The portable dialysis cabinet can have a size and weight that facilitates easy movement of the cabinet from one location to another with relative ease. The portable dialysis cabinet can have additional features necessary to facilitate portability, such as wheels and a handle. In general, the portable dialysis cabinet can contain all the necessary components for performing a dialysis session.
    Type: Grant
    Filed: November 26, 2014
    Date of Patent: February 18, 2020
    Assignee: MEDTRONIC, INC.
    Inventors: Thomas E. Meyer, David B. Lura, Bryant J. Pudil, Martin T. Gerber