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).
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Patent number: 10603392Abstract: 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: GrantFiled: November 11, 2014Date of Patent: March 31, 2020Assignee: GAMBRO LUNDIA ABInventors: Thomas Hertz, Sture Hobro, Lennart Jönsson
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Patent number: 9233197Abstract: 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: GrantFiled: October 9, 2009Date of Patent: January 12, 2016Assignee: Gambro Lundia ABInventors: Lennart Jönsson, Jan Sternby, Eddie Nilsson
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Patent number: 9067027Abstract: 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: GrantFiled: October 28, 2013Date of Patent: June 30, 2015Assignee: Gambro Lundia ABInventors: Jan Peter Sternby, Eddie Nilsson, Lennart Jönsson
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Patent number: 8870804Abstract: 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: GrantFiled: April 14, 2009Date of Patent: October 28, 2014Assignee: Gambro Lundia ABInventor: Lennart Jönsson
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Patent number: 8652082Abstract: 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: GrantFiled: April 14, 2009Date of Patent: February 18, 2014Assignee: Gambro Lundia ABInventors: Lennart Jönsson, Olof Jansson, Mattias Holmer, Eddie Nilsson
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Patent number: 8580110Abstract: 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: GrantFiled: April 14, 2009Date of Patent: November 12, 2013Assignee: Gambro Lundia ABInventors: Lennart Jönsson, Olof Jansson, Mattias Holmer, Jan Sternby, Anders Nilsson, Per Hansson
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Patent number: 8545427Abstract: 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: GrantFiled: October 12, 2009Date of Patent: October 1, 2013Assignee: Gambro Lundia ABInventors: Mattias Holmer, Lennart Jönsson, Anders Wallenborg, Per Hansson
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Patent number: 8485999Abstract: 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: GrantFiled: October 12, 2009Date of Patent: July 16, 2013Assignee: Gambro Lundia ABInventors: Mattias Holmer, Lennart Jönsson, Anders Wallenborg, Per Hansson
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Patent number: 8403150Abstract: 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: GrantFiled: April 21, 2006Date of Patent: March 26, 2013Assignee: Gambro Lundia ABInventors: Jürgen Dannenmaier, Björn Frederik Seidler, Lennart Jönsson, Eddie Nilsson, Francesco Ribolzi
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Patent number: 8293114Abstract: 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: GrantFiled: October 9, 2009Date of Patent: October 23, 2012Assignee: Gambro Lundia ABInventors: Lennart Jönsson, Jan Sternby, Eddie Nilsson
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Patent number: 8293113Abstract: 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: GrantFiled: October 9, 2009Date of Patent: October 23, 2012Assignee: Gambro Lundia ABInventors: Lennart Jönsson, Jan Sternby, Eddie Nilsson
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Patent number: 8206580Abstract: 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: GrantFiled: November 5, 2004Date of Patent: June 26, 2012Assignee: Gambro Lundia ABInventors: Jürgen Dannenmaier, Hermann Goehl, Thomas Ertl, Jacques Chevallet, Francesco Ribolzi, Björn Frederik Seidler, Lennart Jönsson, Eddie Nilsson
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Patent number: 8113060Abstract: 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: GrantFiled: April 25, 2008Date of Patent: February 14, 2012Assignee: Gambro Lundia ABInventors: Lennart Jönsson, Olof Jansson, Eddie Nilsson
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Publication number: 20110226680Abstract: 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: ApplicationFiled: October 9, 2009Publication date: September 22, 2011Applicant: GAMBRO LUNDIA ABInventors: Lennart Jönsson, Jan Sternby, Eddie Nilsson
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Publication number: 20110213305Abstract: 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: ApplicationFiled: October 9, 2009Publication date: September 1, 2011Applicant: Grambro Lundia ABInventors: Lennart Jönsson, Jan Sternby, Eddie Nilsson
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Publication number: 20110198289Abstract: 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: ApplicationFiled: October 9, 2009Publication date: August 18, 2011Applicant: GAMBRO LUNDIA ABInventors: Lennart Jönsson, Jan Sternby, Eddie Nilsson
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Publication number: 20110201989Abstract: 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: ApplicationFiled: October 12, 2009Publication date: August 18, 2011Applicant: Gambro Lundia ABInventors: Mattias Holmer, Lennart Jönsson, Anders Wallenborg, Per Hansson
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Publication number: 20110201988Abstract: 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: ApplicationFiled: October 12, 2009Publication date: August 18, 2011Inventors: Mattias Holmer, Lennart Jönsson, Anders Wallenborg, Per Hansson
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Publication number: 20110046535Abstract: 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: ApplicationFiled: April 14, 2009Publication date: February 24, 2011Inventors: Lennart Jönsson, Olof Jansson, Mattias Holmer, se Nilsson
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Publication number: 20110034850Abstract: 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: ApplicationFiled: April 14, 2009Publication date: February 10, 2011Inventor: Lennart Jönsson