Patents by Inventor Lennart Jönsson

Lennart Jönsson 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: 10603392
    Abstract: Dialysis monitors capable of storing and using thermal energy and methods related thereto are disclosed. Dialysis monitors capable of storing and using disinfection and/or cleaning fluids which was used at an earlier disinfection and/or cleaning event and methods related thereto are also disclosed. Thermally stored energy may, for example, be used for quick thermal disinfection of the fluid path, quick start-up of the preparation of treatment fluid, and as back-up power for continuous preparation of treatment fluid should externally provided power be interrupted.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: March 31, 2020
    Assignee: GAMBRO LUNDIA AB
    Inventors: Thomas Hertz, Sture Hobro, Lennart Jönsson
  • Patent number: 9233197
    Abstract: A method for exchanging heat between a primary fluid (W) and a secondary fluid (X) and a heat exchanger for heat exchange as well as an arrangement and a kit comprising a heat exchanger. The heat exchanger comprises a first and a second fluid circuit extending through the heat exchanger. The heat exchanger further comprises a stack of fluid plates and a membrane arranged between each of the fluid plates where one interspace is formed between each fluid plate and membrane. The first and the second fluid circuit are each constituted by a passage extending through the fluid plates and membranes and along the fluid plates and membranes in at least two interspaces. A primary fluid (W) is passed through the first fluid circuit and a secondary fluid (X) is passed through the second fluid circuit such that the primary fluid (W) is passed along one side of a membrane and simultaneously the secondary fluid (X) is passed along the other side of the membrane.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: January 12, 2016
    Assignee: Gambro Lundia AB
    Inventors: Lennart Jönsson, Jan Sternby, Eddie Nilsson
  • Patent number: 9067027
    Abstract: The invention relates to a multi-ports extracorporeal medical device (1) having a selector body (19) which can be linearly displaced within the housing (16) in order to create different flow paths and connection among the ports. The device can for instance be used for reversing the flow in an extracorporeal blood circuit.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: June 30, 2015
    Assignee: Gambro Lundia AB
    Inventors: Jan Peter Sternby, Eddie Nilsson, Lennart Jönsson
  • Patent number: 8870804
    Abstract: A proposed blood treatment apparatus includes a blood treatment unit, at least one fluid pump and at least one blood pump. The fluid pumps are configured to pass blood treatment fluid through the blood treatment unit, while the blood pumps are configured to extract untreated blood from a blood source, e.g. a patient, pass the extracted blood through the blood treatment unit and deliver treated blood to a target vessel, e.g. likewise represented by a patient. Each blood pump includes a pumping chamber, which is separated into a first accumulation container and a second accumulation container by a flexible member. The flexible member is further movable within the pumping chamber so as to vary a volume relationship between the first and second accumulation containers. The second accumulation container is configured to receive an amount of blood treatment fluid to act on the flexible member and thus pump blood from the first accumulation container.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: October 28, 2014
    Assignee: Gambro Lundia AB
    Inventor: Lennart Jönsson
  • Patent number: 8652082
    Abstract: A proposed blood treatment apparatus includes: a blood treatment unit, at least one fluid pump and at least one blood pump. The blood treatment unit is configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid. The fluid pumps are configured to pass blood treatment fluid through the blood treatment unit. The blood pumps are configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel. Additionally, at least one of the fluid pumps is configured to control the operation of at least one blood pump via the blood treatment fluid. Moreover, at least one of the blood pumps is integrated into a joint apparatus element, which includes the blood treatment unit. Thus, this blood pump and the unit may be mounted as well as be discarded jointly.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: February 18, 2014
    Assignee: Gambro Lundia AB
    Inventors: Lennart Jönsson, Olof Jansson, Mattias Holmer, Eddie Nilsson
  • Patent number: 8580110
    Abstract: A proposed blood treatment apparatus includes: a blood treatment unit, a pair of fluid pumps and a pair blood pumps. The blood treatment unit is configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid. The fluid pumps are configured to pass blood treatment fluid through the blood treatment unit. The blood pumps are configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel. Additionally, the fluid pumps are configured to control the operation of the blood pumps via the blood treatment fluid. Moreover, a flow control device is configured to control a trans-membrane flow between the blood side and the a fluid side of the blood treatment unit. Hence, for instance ultrafiltration can be adjusted to a desired level in a very straightforward manner.
    Type: Grant
    Filed: April 14, 2009
    Date of Patent: November 12, 2013
    Assignee: Gambro Lundia AB
    Inventors: Lennart Jönsson, Olof Jansson, Mattias Holmer, Jan Sternby, Anders Nilsson, Per Hansson
  • Patent number: 8545427
    Abstract: A blood treatment apparatus, including a blood treatment unit configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid, a pair of fluid pumps configured to pass blood treatment fluid through the blood treatment unit, a pair of blood pumps configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel, each blood pump including a pump chamber and a flexible member separating the pumping chamber into a first blood accumulating container and a second working fluid accumulating container where the flexible member is configured to vary a volume relationship between the first and the second accumulation containers.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: October 1, 2013
    Assignee: Gambro Lundia AB
    Inventors: Mattias Holmer, Lennart Jönsson, Anders Wallenborg, Per Hansson
  • Patent number: 8485999
    Abstract: A blood treatment apparatus includes: a blood treatment unit, a pair of fluid pumps and a pair of blood pumps. The blood treatment unit is configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid. The fluid pumps are configured to pass blood treatment fluid through the blood treatment unit. The blood pumps are configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel. Flow measurement device which determines at least one blood flow parameter reflecting an average flow in relation to the blood treatment unit during a well-defined period of operation of the apparatus, for example while completing one operation cycle.
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: July 16, 2013
    Assignee: Gambro Lundia AB
    Inventors: Mattias Holmer, Lennart Jönsson, Anders Wallenborg, Per Hansson
  • Patent number: 8403150
    Abstract: An end-cap assembly for closing one end of a housing of a filter comprises an end-cap having an end wall; an inlet port extending through the end wall for connection to a first end of a pump hose of a peristaltic pump; and a first holder for securing a second end of the pump hose. The inlet port and the first holder are arranged relative to each other so that the pump hose forms a loop when the first end of the pump hose is connected to the inlet port and the second end of the pump hose is secured by the holder.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: March 26, 2013
    Assignee: Gambro Lundia AB
    Inventors: Jürgen Dannenmaier, Björn Frederik Seidler, Lennart Jönsson, Eddie Nilsson, Francesco Ribolzi
  • Patent number: 8293114
    Abstract: A method for exchanging heat between an effluent fluid and a blood fluid and a heat exchanger for heat exchange. The heat exchanger comprises a first and a second fluid circuit extending through the heat exchanger. The heat exchanger further comprises a stack of fluid plates and a membrane arranged between each of the fluid plates where one interspace is formed between each fluid plate and membrane. The first and the second fluid circuit is each constituted by a passage extending through the fluid plates and membranes and along the fluid plates and membranes in at least two interspaces According to the method for heat exchanging an effluent fluid is passed through the first fluid circuit and a blood fluid is passed through the second fluid circuit such that the effluent fluid is passed along one side of a membrane and simultaneously the blood fluid is passed along the other side of the membrane. Heat is thus exchanged between the effluent fluid and the blood fluid over the membrane.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: October 23, 2012
    Assignee: Gambro Lundia AB
    Inventors: Lennart Jönsson, Jan Sternby, Eddie Nilsson
  • Patent number: 8293113
    Abstract: A method for exchanging heat between an effluent fluid and a treatment fluid and a heat exchanger for heat exchange as well as an arrangement and a kit comprising a heat exchanger. The heat exchanger comprises a first and a second fluid circuit extending through the heat exchanger. The heat exchanger further comprises a stack of fluid plates and a membrane arranged between each of the fluid plates where one interspace is formed between each fluid plate and membrane. The first and the second fluid circuit is each constituted by a passage extending through the fluid plates and membranes and along the fluid plates and membranes in at least two interspaces. According to the method for heat exchanging an effluent fluid is passed through the first fluid circuit and a treatment fluid is passed through the second fluid circuit such that the effluent fluid is passed along one side of a membrane and simultaneously the treatment fluid is passed along the other side of the membrane.
    Type: Grant
    Filed: October 9, 2009
    Date of Patent: October 23, 2012
    Assignee: Gambro Lundia AB
    Inventors: Lennart Jönsson, Jan Sternby, Eddie Nilsson
  • Patent number: 8206580
    Abstract: An integrated blood treatment module comprises a blood treatment device (1) having a housing (2) and a first end-cap (4) and a second end-cap (5) closing both ends of the housing (2). A pump hose (17) for a peristaltic pump has a first end (18) that is secured to the housing (2) and a second end (16) that is connected to a blood inlet port (15) of the first end-cap (4) so as to form a loop. A degassing device (30) is connected to the second end-cap (5). The degassing device (30), which, in use, is full of liquid, comprises a hydrophobic membrane through which bubbles and micro-bubbles escape the degassing device.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: June 26, 2012
    Assignee: Gambro Lundia AB
    Inventors: Jürgen Dannenmaier, Hermann Goehl, Thomas Ertl, Jacques Chevallet, Francesco Ribolzi, Björn Frederik Seidler, Lennart Jönsson, Eddie Nilsson
  • Patent number: 8113060
    Abstract: A pressure sensing device adapted for having a liquid flowing there through and for sensing the pressure of said liquid. The device has a casing being fluid-tightly divided into a first and a second chamber by a flexible, impermeable wall. The first chamber has a first opening for the liquid, said opening being placed at the lower part of the chamber, and a second opening for the liquid, said opening being placed at the top of the first chamber. The second chamber has a measuring port, which is connectable to a pressure transducer for bringing the second chamber into gas-tight communication with the pressure transducer. The device has a first orifice to permit the liquid to flow into and out of the device, the orifice being placed at the upper part of the device at a higher level than the second opening. A first channel is connecting the first orifice with the first opening.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: February 14, 2012
    Assignee: Gambro Lundia AB
    Inventors: Lennart Jönsson, Olof Jansson, Eddie Nilsson
  • Publication number: 20110226680
    Abstract: A method for exchanging heat between an effluent fluid and a blood fluid and a heat exchanger for heat exchange. The heat exchanger comprises a first and a second fluid circuit extending through the heat exchanger. The heat exchanger further comprises a stack of fluid plates and a membrane arranged between each of the fluid plates where one interspace is formed between each fluid plate and membrane. The first and the second fluid circuit is each constituted by a passage extending through the fluid plates and membranes and along the fluid plates and membranes in at least two interspaces According to the method for heat exchanging an effluent fluid is passed through the first fluid circuit and a blood fluid is passed through the second fluid circuit such that the effluent fluid is passed along one side of a membrane and simultaneously the blood fluid is passed along the other side of the membrane. Heat is thus exchanged between the effluent fluid and the blood fluid over the membrane.
    Type: Application
    Filed: October 9, 2009
    Publication date: September 22, 2011
    Applicant: GAMBRO LUNDIA AB
    Inventors: Lennart Jönsson, Jan Sternby, Eddie Nilsson
  • Publication number: 20110213305
    Abstract: A method for exchanging heat between a primary fluid (W) and a secondary fluid (X) and a heat exchanger for heat exchange as well as an arrangement and a kit comprising a heat exchanger. The heat exchanger comprises a first and a second fluid circuit extending through the heat exchanger. The heat exchanger further comprises a stack of fluid plates and a membrane arranged between each of the fluid plates where one interspace is formed between each fluid plate and membrane. The first and the second fluid circuit are each constituted by a passage extending through the fluid plates and membranes and along the fluid plates and membranes in at least two interspaces. A primary fluid (W) is passed through the first fluid circuit and a secondary fluid (X) is passed through the second fluid circuit such that the primary fluid (W) is passed along one side of a membrane and simultaneously the secondary fluid (X) is passed along the other side of the membrane.
    Type: Application
    Filed: October 9, 2009
    Publication date: September 1, 2011
    Applicant: Grambro Lundia AB
    Inventors: Lennart Jönsson, Jan Sternby, Eddie Nilsson
  • Publication number: 20110198289
    Abstract: A method for exchanging heat between an effluent fluid and a treatment fluid and a heat exchanger for heat exchange as well as an arrangement and a kit comprising a heat exchanger. The heat exchanger comprises a first and a second fluid circuit extending through the heat exchanger. The heat exchanger further comprises a stack of fluid plates and a membrane arranged between each of the fluid plates where one interspace is formed between each fluid plate and membrane. The first and the second fluid circuit is each constituted by a passage extending through the fluid plates and membranes and along the fluid plates and membranes in at least two interspaces. According to the method for heat exchanging an effluent fluid is passed through the first fluid circuit and a treatment fluid is passed through the second fluid circuit such that the effluent fluid is passed along one side of a membrane and simultaneously the treatment fluid is passed along the other side of the membrane.
    Type: Application
    Filed: October 9, 2009
    Publication date: August 18, 2011
    Applicant: GAMBRO LUNDIA AB
    Inventors: Lennart Jönsson, Jan Sternby, Eddie Nilsson
  • Publication number: 20110201989
    Abstract: A blood treatment apparatus, including a blood treatment unit configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid, a pair of fluid pumps configured to pass blood treatment fluid through the blood treatment unit, a pair of blood pumps configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel, each blood pump including a pump chamber and a flexible member separating the pumping chamber into a first blood accumulating container and a second working fluid accumulating container where the flexible member is configured to vary a volume relationship between the first and the second accumulation containers.
    Type: Application
    Filed: October 12, 2009
    Publication date: August 18, 2011
    Applicant: Gambro Lundia AB
    Inventors: Mattias Holmer, Lennart Jönsson, Anders Wallenborg, Per Hansson
  • Publication number: 20110201988
    Abstract: A blood treatment apparatus includes: a blood treatment unit, a pair of fluid pumps and a pair of blood pumps. The blood treatment unit is configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid. The fluid pumps are configured to pass blood treatment fluid through the blood treatment unit. The blood pumps are configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel. Flow measurement device which determines at least one blood flow parameter reflecting an average flow in relation to the blood treatment unit during a well-defined period of operation of the apparatus, for example while completing one operation cycle.
    Type: Application
    Filed: October 12, 2009
    Publication date: August 18, 2011
    Inventors: Mattias Holmer, Lennart Jönsson, Anders Wallenborg, Per Hansson
  • Publication number: 20110046535
    Abstract: A proposed blood treatment apparatus includes: a blood treatment unit, at least one fluid pump and at least one blood pump. The blood treatment unit is configured to receive untreated blood and fresh blood treatment fluid, and emit treated blood and used blood treatment fluid. The fluid pumps are configured to pass blood treatment fluid through the blood treatment unit. The blood pumps are configured to extract untreated blood from a blood source, pass extracted blood through the blood treatment unit and deliver treated blood to a target vessel. Additionally, at least one of the fluid pumps is configured to control the operation of at least one blood pump via the blood treatment fluid. Moreover, at least one of the blood pumps is integrated into a joint apparatus element, which includes the blood treatment unit. Thus, this blood pump and the unit may be mounted as well as be discarded jointly.
    Type: Application
    Filed: April 14, 2009
    Publication date: February 24, 2011
    Inventors: Lennart Jönsson, Olof Jansson, Mattias Holmer, se Nilsson
  • Publication number: 20110034850
    Abstract: A proposed blood treatment apparatus includes a blood treatment unit, at least one fluid pump and at least one blood pump. The fluid pumps are configured to pass blood treatment fluid through the blood treatment unit, while the blood pumps are configured to extract untreated blood from a blood source, e.g. a patient, pass the extracted blood through the blood treatment unit and deliver treated blood to a target vessel, e.g. likewise represented by a patient. Each blood pump includes a pumping chamber, which is separated into a first accumulation container and a second accumulation container by a flexible member. The flexible member is further movable within the pumping chamber so as to vary a volume relationship between the first and second accumulation containers. The second accumulation container is configured to receive an amount of blood treatment fluid to act on the flexible member and thus pump blood from the first accumulation container.
    Type: Application
    Filed: April 14, 2009
    Publication date: February 10, 2011
    Inventor: Lennart Jönsson