Patents by Inventor Lynn E. Jensen
Lynn E. Jensen 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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Patent number: 11925736Abstract: Dialyzer systems can consolidate multiple technologies and functionalities of blood treatment systems in a significantly integrated fashion. For example, this disclosure describes dialyzer systems that include a magnetically driven and magnetically levitating pump rotor integrated into the dialyzer. Such a dialyzer can be used with treatment modules that include a magnetic field-generating pump drive unit. In some embodiments, the dialyzers include pressure sensor chambers with flexible membranes with which corresponding pressure transducers of the treatment modules can interface to detect arterial and/or venous pressures.Type: GrantFiled: November 12, 2020Date of Patent: March 12, 2024Assignees: Fresenius Medical Care Deutschland GmbH, Fresenius Medical Care Holdings, Inc.Inventors: Massimo Earl Fini, Lynn E. Jensen, Alexander Heide, Dejan Nikolic, Arne Peters, Christoph Wiktor, Marina Wenke, Tommy Huang, Dacey John Ryan, Stefan Kreber, Lothar Leick, Dzhuney Terzi, Hendrik Therre, Manfred Weis, Alain Veneroni, Reinhold Reiter, Michele Marini, Davide Maria Benelli, Brad Yang, Jiunn Teo
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Publication number: 20240060924Abstract: A device for measuring conductivity of a fluid. The device including a chamber and at least two electrodes. The chamber includes an inlet, an outlet, an upper surface, and a lower surface that runs separate from the upper surface. The fluid enters the chamber through the inlet and flows out of the chamber through the outlet. Moving along a length of the chamber from the inlet to the outlet or from the outlet to the inlet, a distance between the upper surface and the lower surface changes in at least one dimension of the chamber. The two electrodes are configured to measure electrical voltage in the fluid that enters the chamber through the inlet and flows out of the chamber through the outlet.Type: ApplicationFiled: November 2, 2023Publication date: February 22, 2024Inventors: Philip Scott James, Jon F. Moss, Lynn E. Jensen, Mary Hoover, Spencer Barrett
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Patent number: 11896749Abstract: Dialyzer systems can consolidate multiple technologies and functionalities of blood treatment systems in a significantly integrated fashion. For example, this disclosure describes dialyzer systems that include a magnetically driven and magnetically levitating pump rotor integrated into the dialyzer. Such a dialyzer can be used with treatment modules that include a magnetic field-generating pump drive unit. In some embodiments, the dialyzers include pressure sensor chambers with flexible membranes with which corresponding pressure transducers of the treatment modules can interface to detect arterial and/or venous pressures.Type: GrantFiled: November 9, 2020Date of Patent: February 13, 2024Assignees: Fresenius Medical Care Deutschland GmbH, Fresenius Medical Care Holdings, Inc.Inventors: Massimo Earl Fini, Lynn E. Jensen, Dacey John Ryan, Alexander Heide, Dejan Nikolic, Arne Peters
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Patent number: 11879860Abstract: A device for measuring conductivity of a fluid. The device including a chamber and at least two electrodes. The chamber includes an inlet, an outlet, an upper surface, and a lower surface that runs separate from the upper surface. The fluid enters the chamber through the inlet and flows out of the chamber through the outlet. Moving along a length of the chamber from the inlet to the outlet or from the outlet to the inlet, a distance between the upper surface and the lower surface changes in at least one dimension of the chamber. The two electrodes are configured to measure electrical voltage in the fluid that enters the chamber through the inlet and flows out of the chamber through the outlet.Type: GrantFiled: April 21, 2020Date of Patent: January 23, 2024Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Philip Scott James, Jon F. Moss, Lynn E. Jensen, Mary Hoover, Spencer Barrett
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Patent number: 11841337Abstract: A device for measuring conductivity of a fluid. The device including a chamber and at least two electrodes. The chamber includes an inlet, an outlet, an upper surface, and a lower surface that runs separate from the upper surface. The fluid enters the chamber through the inlet and flows out of the chamber through the outlet. Moving along a length of the chamber from the inlet to the outlet or from the outlet to the inlet, a distance between the upper surface and the lower surface changes in at least one dimension of the chamber. The two electrodes are configured to measure electrical voltage in the fluid that enters the chamber through the inlet and flows out of the chamber through the outlet.Type: GrantFiled: April 21, 2020Date of Patent: December 12, 2023Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Philip Scott James, Jon F. Moss, Lynn E. Jensen, Mary Hoover, Spencer Barrett
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Patent number: 11779519Abstract: The invention provides, in some aspects, a container system for medical solutions such as peritoneal dialysis (PD) solutions. The invention particularly features a system which includes a first compartment that contains a first medical solution, e.g., a PD osmotic agent, and a second compartment that contains a second medical solution, e.g., 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. To that end, a container system can include a diffuser that is disposed in a fluid pathway between the first and second compartments, e.g., to facilitate homogeneous mixing of the first and second PD agents.Type: GrantFiled: October 9, 2020Date of Patent: October 10, 2023Assignee: FRESENIUS MEDICAL CARE HOLDINGS, INC.Inventors: Lynn E. Jensen, Venugopal R. Ghatikar, DeLoy Lindley, Melvin D. Jensen
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Patent number: 11724082Abstract: A male luer connector includes a body having a first end configured to be connected to a fluid line, a second end opposed to the first end, and a body longitudinal axis. The second end is configured to be inserted into and form a luer slip connection with a female luer connector. The male luer connector also includes a locking collar that is connected to the body in a manner such that the locking collar rotates about the longitudinal axis. In some cases, the body second end does not protrude beyond a plane that is transverse to the longitudinal axis and that includes an end face of the locking collar, and/or when male and female connectors are engaged, the locking collar engages an outer surface of the female fluid line connector and is deformed by the engagement.Type: GrantFiled: February 11, 2019Date of Patent: August 15, 2023Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Lynn E. Jensen, Melvin D. Jensen
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Publication number: 20230040549Abstract: In one aspect, a valve actuation system includes a drive unit including an actuator configured to engage and move multiple valves disposed within a fluid cassette to selectively open and close each valve of the multiple valves and a positioning frame disposed adjacent the fluid cassette and along which the drive unit can be moved in three dimensions to align the actuator with a selected valve of the multiple valves.Type: ApplicationFiled: October 6, 2022Publication date: February 9, 2023Inventors: Lynn E. Jensen, Philip Scott James
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Publication number: 20230019233Abstract: In one aspect, a system includes a blood treatment machine; a dialyzer configured to be coupled to the blood treatment machine, the dialyzer including a dialyzer housing defining a blood inlet and a blood outlet; a bundle of hollow fibers within an interior of the dialyzer housing; a pumping device drivable to force blood received from the blood inlet through lumens of the bundle of hollow fibers and out the blood outlet; a dialysate inlet port in fluid communication with a dialysate flow path that includes space in the interior of the dialyzer housing between the bundle of hollow fibers; and a dialysate outlet port in fluid communication with the dialysate flow path. The system further includes a fluid conditioning system configured to (i) prepare and supply fresh dialysate to the dialyzer via the dialysate inlet port, and (ii) receive spent dialysate from the dialyzer via the dialysate outlet port, recycle the spent dialysate, and supply the recycled dialysate to the dialyzer via the dialysate inlet port.Type: ApplicationFiled: December 11, 2020Publication date: January 19, 2023Inventors: Lynn E. Jensen, Stephen A. Merchant, Arne Peters, Alexander Heide, Dejan Nikolic
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Publication number: 20220387259Abstract: A container system includes at least one flexible wall defining a compartment containing a dissolvable solid or concentrate, a support adjacent a first end of the at least one flexible wall, and a nozzle assembly coupled to a second end of the at least one flexible wall. The second end of the wall is distal from the first end. The nozzle assembly comprises a hollow body defining a longitudinal axis. The hollow body further defines a plurality of orifices through a wall thereof. Each orifice is able to form a fluid connection between an interior volume within the hollow body and the compartment. Each orifice is configured to deliver liquid from the interior volume to the compartment in a direction having an angle of between 5° and 85° from a direction of the longitudinal axis. Related nozzles and methods are also disclosed.Type: ApplicationFiled: August 9, 2022Publication date: December 8, 2022Inventors: Lynn E. Jensen, DeLoy Lindley, Natalie Rebacz, Mary Hoover, Troy Dayton, Michael P. Smith
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Patent number: 11500400Abstract: In one aspect, a valve actuation system includes a drive unit including an actuator configured to engage and move multiple valves disposed within a fluid cassette to selectively open and close each valve of the multiple valves and a positioning frame disposed adjacent the fluid cassette and along which the drive unit can be moved in three dimensions to align the actuator with a selected valve of the multiple valves.Type: GrantFiled: July 23, 2019Date of Patent: November 15, 2022Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Lynn E. Jensen, Philip Scott James
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Patent number: 11419791Abstract: A container system includes at least one flexible wall defining a compartment containing a dissolvable solid or concentrate, a support adjacent a first end of the at least one flexible wall, and a nozzle assembly coupled to a second end of the at least one flexible wall. The second end of the wall is distal from the first end. The nozzle assembly comprises a hollow body defining a longitudinal axis. The hollow body further defines a plurality of orifices through a wall thereof. Each orifice is able to form a fluid connection between an interior volume within the hollow body and the compartment. Each orifice is configured to deliver liquid from the interior volume to the compartment in a direction having an angle of between 5° and 85° from a direction of the longitudinal axis. Related nozzles and methods are also disclosed.Type: GrantFiled: July 5, 2018Date of Patent: August 23, 2022Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Lynn E. Jensen, DeLoy Lindley, Natalie Rebacz, Mary Hoover, Troy Dayton, Michael P. Smith
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Patent number: 11338072Abstract: This disclosure relates to a blood treatment system including a blood treatment machine, a dialyzer configured to be coupled to the blood treatment machine, a blood line having a first end configured to be connected to the dialyzer and a second end configured to be connected to a needle for insertion into a patient, and one or more sensors operable to transmit, to the blood treatment machine, data related to tension along the blood line. The blood treatment machine is configured to take action in response to the data received from the one or more sensors.Type: GrantFiled: April 14, 2020Date of Patent: May 24, 2022Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Eric Bergman, Lynn E. Jensen
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Publication number: 20210316051Abstract: This disclosure relates to a blood treatment system including a blood treatment machine, a dialyzer configured to be coupled to the blood treatment machine, a blood line having a first end configured to be connected to the dialyzer and a second end configured to be connected to a needle for insertion into a patient, and one or more sensors operable to transmit, to the blood treatment machine, data related to tension along the blood line. The blood treatment machine is configured to take action in response to the data received from the one or more sensors.Type: ApplicationFiled: April 14, 2020Publication date: October 14, 2021Inventors: Eric Bergman, Lynn E. Jensen
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Publication number: 20210138135Abstract: Dialyzer systems can consolidate multiple technologies and functionalities of blood treatment systems in a significantly integrated fashion. For example, this disclosure describes dialyzer systems that include a magnetically driven and magnetically levitating pump rotor integrated into the dialyzer. Such a dialyzer can be used with treatment modules that include a magnetic field-generating pump drive unit. In some embodiments, the dialyzers include pressure sensor chambers with flexible membranes with which corresponding pressure transducers of the treatment modules can interface to detect arterial and/or venous pressures.Type: ApplicationFiled: November 9, 2020Publication date: May 13, 2021Inventors: Massimo Earl Fini, Lynn E. Jensen, Dacey John Ryan, Alexander Heide, Dejan Nikolic, Arne Peters
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Publication number: 20210138131Abstract: Dialyzer systems can consolidate multiple technologies and functionalities of blood treatment systems in a significantly integrated fashion. For example, this disclosure describes dialyzer systems that include a magnetically driven and magnetically levitating pump rotor integrated into the dialyzer. Such a dialyzer can be used with treatment modules that include a magnetic field-generating pump drive unit. In some embodiments, the dialyzers include pressure sensor chambers with flexible membranes with which corresponding pressure transducers of the treatment modules can interface to detect arterial and/or venous pressures.Type: ApplicationFiled: November 12, 2020Publication date: May 13, 2021Inventors: Massimo Earl Fini, Lynn E. Jensen, Alexander Heide, Dejan Nikolic, Arne Peters, Christoph Wiktor, Marina Wenke, Tommy Huang, Dacey John Ryan, Stefan Kreber, Lothar Leick, Dzhuney Terzi, Hendrik Therre, Manfred Weis, Alain Veneroni, Reinhold Reiter, Michele Marini, Davide Benelli, Brad Yang, Jiunn Teo
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Publication number: 20210093509Abstract: The invention provides, in some aspects, a container system for medical solutions such as peritoneal dialysis (PD) solutions. The invention particularly features a system which includes a first compartment that contains a first medical solution, e.g., a PD osmotic agent, and a second compartment that contains a second medical solution, e.g., 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. To that end, a container system can include a diffuser that is disposed in a fluid pathway between the first and second compartments, e.g., to facilitate homogeneous mixing of the first and second PD agents.Type: ApplicationFiled: October 9, 2020Publication date: April 1, 2021Inventors: Lynn E. Jensen, Venugopal R. Ghatikar, DeLoy Lindley, Melvin D. Jensen
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Publication number: 20200393395Abstract: A device for measuring conductivity of a fluid. The device including a chamber and at least two electrodes. The chamber includes an inlet, an outlet, an upper surface, and a lower surface that runs separate from the upper surface. The fluid enters the chamber through the inlet and flows out of the chamber through the outlet. Moving along a length of the chamber from the inlet to the outlet or from the outlet to the inlet, a distance between the upper surface and the lower surface changes in at least one dimension of the chamber. The two electrodes are configured to measure electrical voltage in the fluid that enters the chamber through the inlet and flows out of the chamber through the outlet.Type: ApplicationFiled: April 21, 2020Publication date: December 17, 2020Inventors: Philip Scott James, Jon F. Moss, Lynn E. Jensen, Mary Hoover, Spencer Barrett
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Patent number: 10842714Abstract: The invention provides, in some aspects, a container system for medical solutions such as peritoneal dialysis (PD) solutions. The invention particularly features a system which includes a first compartment that contains a first medical solution, e.g., a PD osmotic agent, and a second compartment that contains a second medical solution, e.g., 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. To that end, a container system can include a diffuser that is disposed in a fluid pathway between the first and second compartments, e.g., to facilitate homogeneous mixing of the first and second PD agents.Type: GrantFiled: August 31, 2016Date of Patent: November 24, 2020Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Lynn E. Jensen, Venugopal R. Ghatikar, Deloy Lindley, Melvin D. Jensen
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Publication number: 20200033897Abstract: In one aspect, a valve actuation system includes a drive unit including an actuator configured to engage and move multiple valves disposed within a fluid cassette to selectively open and close each valve of the multiple valves and a positioning frame disposed adjacent the fluid cassette and along which the drive unit can be moved in three dimensions to align the actuator with a selected valve of the multiple valves.Type: ApplicationFiled: July 23, 2019Publication date: January 30, 2020Inventors: Lynn E. Jensen, Philip Scott James