Patents by Inventor Anders Wieslander
Anders Wieslander 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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Publication number: 20250032435Abstract: The invention provides a first concentrate comprising lactate and calcium ions, said first concentrate having increased stability against precipitation at temperatures around +4° C., said first concentrate being useful for preparing a ready-to-use dialysis fluid by mixing said first concentrate with water and optionally a second concentrate comprising glucose, wherein that the lactate concentration Lconc (expressed in moles per litre, M) of the concentrate fulfills the conditions: a ) ? L conc > 0.8 M ; and b ) ? L conc < ( 1.9 - 0.4 × Ca ready ) ? M ; and wherein Caready is the calcium concentration of the ready-to-use dialysis fluid expressed in millimoles per litre (mM).Type: ApplicationFiled: October 10, 2024Publication date: January 30, 2025Inventors: Anders Wieslander, Ola Carlsson, Karin Sandin, Simon Enarsson, Viktoria Hancock
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Patent number: 12144790Abstract: The invention provides a first concentrate comprising lactate and calcium ions, said first concentrate having increased stability against precipitation at temperatures around +4° C., said first concentrate being useful for preparing a ready-to-use dialysis fluid by mixing said first concentrate with water and optionally a second concentrate comprising glucose, wherein that the lactate concentration Lconc (expressed in moles per litre, M) of the concentrate fulfills the conditions: a) Lconc>0.8 M; and b) Lconc<(1.9?0.4×Caready) M; and wherein Caready is the calcium concentration of the ready-to-use dialysis fluid expressed in millimoles per litre (mM).Type: GrantFiled: May 5, 2017Date of Patent: November 19, 2024Assignee: Gambro Lundia ABInventors: Anders Wieslander, Ola Carlsson, Karin Sandin, Simon Enarsson, Viktoria Hancock
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Patent number: 12138280Abstract: Methods and systems are provided for preparing a ready-to-use peritoneal dialysis fluid for peritoneal dialysis of a patient having a deficiency in potassium. The methods comprise mixing, immediately before administration to the patient, appropriate amounts of at least a first concentrate, a second concentrate, and a third concentrate with an appropriate amount of water to form a ready-to-use dialysis fluid. The first concentrate comprises glucose, has a pH of between 1.5 and 4, and is free of potassium ions; the second concentrate comprises a physiologically acceptable buffer and is free of potassium ions; and the third concentrate comprises the physiologically acceptable buffer and potassium ions.Type: GrantFiled: October 25, 2018Date of Patent: November 12, 2024Assignee: GAMBRO LUNDIA ABInventors: Anders Wieslander, Olof Jansson, Anders Wellings
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Patent number: 11718546Abstract: A method and a system comprising an integrated water purifying apparatus with a pre-filter circuit including a particle filter and an activated carbon filter arranged to produce pre-treated water; a fluid circuit arranged to receive pre-treated water from the pre-filter circuit, the fluid circuit including an RO-pump and a Reverse Osmosis (RO) device arranged to produce purified water; a heating device arranged to heat purified water from the RO device to a temperature above 65°0 C.; the water purifying apparatus further arranged to heat disinfect the fluid circuit using the heated purified water. The system further comprises a line set connected to the purified water outlet connector at a water line connector of the line set, wherein the line set includes at least one sterile sterilizing grade filter arranged to further filter the purified water.Type: GrantFiled: November 6, 2017Date of Patent: August 8, 2023Assignees: Baxter International Inc., Baxter Healthcare SAInventors: Anders Wieslander, Olof Jansson, Per-Ola Wictor, Anders Wellings, Helena Jeppsson
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Patent number: 11285173Abstract: The present invention relates to a medical solution. According to the invention the ready-for-use solution comprises phosphate in a concentration of 1.0-2.8 mM, is sterile and has a pH of 6.5-7.6. The present invention further relates to a method for producing the medical solution and the use thereof.Type: GrantFiled: July 29, 2020Date of Patent: March 29, 2022Assignee: Gambro Lundia ABInventors: Ola Carlsson, Malin Ernebrant, Gunita Forsback, Anders Wieslander, Therese Svensson
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Patent number: 11253543Abstract: The present invention concerns a dialysis acid precursor composition for use during preparation of a dialysis acid concentrate solution and for mixing with water, a sodium containing concentrate, and a bicarbonate containing concentrate into a ready-for-use dialysis solution. The dialysis acid precursor composition consists of powder components comprising glucose, at least one dry acid and at least one magnesium salt, and optionally potassium salt, and calcium salt. According to the invention the glucose and the at least one magnesium salt, are present as anhydrous components in the dialysis acid precursor composition.Type: GrantFiled: November 1, 2017Date of Patent: February 22, 2022Assignee: GAMBRO LUNDIA ABInventors: Ola Carlsson, Lennart Jonsson, Torbjorn Linden, Anders Wieslander
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Patent number: 11026968Abstract: The present invention concerns an anticoagulation fluid comprising 10-40 mM citrate and 0.1-4 mM phosphate. The anticoagulation fluid is to be used for regional citrate anticoagulation in an extracorporeal blood circuit. The anticoagulation fluid may be combined with at least one treatment fluid in a dialysis treatment, and it may be included in a system for regional citrate anticoagulation in an extracorporeal blood circuit.Type: GrantFiled: September 19, 2019Date of Patent: June 8, 2021Assignee: Gambro Lundia ABInventors: Jan Sternby, Anders Wieslander
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Patent number: 10993961Abstract: The present invention concerns a dialysis acid precursor composition for use during preparation of a dialysis acid concentrate solution and for mixing with water and a bicarbonate containing concentrate into a ready-for-use dialysis solution. Said dialysis acid precursor composition consist of powder components comprising sodium chloride, at least one dry acid and at least one magnesium salt, and optionally potassium salt, calcium salt, and glucose. According to the invention said at least one magnesium salt and said optional glucose, are present as anhydrous components in said dialysis acid precursor composition.Type: GrantFiled: June 20, 2011Date of Patent: May 4, 2021Assignee: Gambro Lundia ABInventors: Ola Carlsson, Torbjorn Linden, Lennart Jonsson, Anders Wieslander
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Patent number: 10894119Abstract: The present invention concerns a system for preparing a ready-to-use peritoneal dialysis fluid. The system comprises a) a proportioning device; b) at least one source of water; c) at least one source of first concentrate adapted for connection with a) and b), d) at least one source of second concentrate adapted for connection with a) and b), and optionally, e) at least one source of further concentrate adapted for connection with a) and b), wherein the first concentrate comprises glucose and has a pH of between 1.5 and 4, and wherein the second concentrate comprises a physiologically acceptable buffer and has a pH of between 5.5 and 9.0.Type: GrantFiled: May 5, 2017Date of Patent: January 19, 2021Assignee: Gambro Lundia ABInventors: Anders Wieslander, Olof Jansson, Ola Carlsson, Sture Hobro, Karin Sandin, Simon Enarsson
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Publication number: 20200384019Abstract: The present invention relates to a medical solution. According to the invention the ready-for-use solution comprises phosphate in a concentration of 1.0-2.8 mM, is sterile and has a pH of 6.5-7.6. The present invention further relates to a method for producing the medical solution and the use thereof.Type: ApplicationFiled: July 29, 2020Publication date: December 10, 2020Inventors: Ola Carlsson, Malin Ernebrant, Gunita Forsback, Anders Wieslander, Therese Svensson
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Patent number: 10729722Abstract: The present invention relates to a medical solution. According to the invention the ready-for-use solution comprises phosphate in a concentration of 1.0-2.8 mM, is sterile and has a pH of 6.5-7.6. The present invention further relates to a method for producing the medical solution and the use thereof.Type: GrantFiled: March 1, 2016Date of Patent: August 4, 2020Assignee: Gambro Lundia ABInventors: Ola Carlsson, Malin Ernebrant, Gunita Forsback, Anders Wieslander, Therese Svensson
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Patent number: 10729721Abstract: The present invention relates to a medical solution. According to the invention the ready-for-use solution comprises phosphate in a concentration of 1.0-2.8 mM, is sterile and has a pH of 6.5-7.6. The present invention further relates to a method for producing the medical solution and the use thereof.Type: GrantFiled: October 14, 2005Date of Patent: August 4, 2020Assignee: Gambro Lundia ABInventors: Ola Carlsson, Malin Ernebrant, Gunita Forsbäck, Anders Wieslander, Therese Svensson
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Patent number: 10716886Abstract: A peritoneal dialysis system includes a disposable set, source(s) of concentrate(s), a water purifier, a sensor, and a control unit. The disposable set includes a water port, an inlet port, a drain port, a water line in fluid communication with the water port, a drain line in fluid communication with the drain port, and a container to hold a dialysis fluid prepared by mixing water and the concentrate(s). The source(s) of concentrate(s) are in fluid communication with the inlet port, and the water purifier is configured to purify water and feed the water towards the water port so the sensor can detect a fluid property. The control unit is configured to deliver dialysis fluid mixed in the disposable set to the drain line and water purified by the water purifier along the water line, into the disposable set, and out the drain line to push dialysis fluid to the sensor.Type: GrantFiled: May 5, 2017Date of Patent: July 21, 2020Assignee: GAMBRO LUNDIA ABInventors: Anders Wieslander, Anders Wellings, Olof Jansson
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Publication number: 20200009186Abstract: The present invention concerns an anticoagulation fluid comprising 10-40 mM citrate and 0.1-4 mM phosphate. The anticoagulation fluid is to be used for regional citrate anticoagulation in an extracorporeal blood circuit. The anticoagulation fluid may be combined with at least one treatment fluid in a dialysis treatment, and it may be included in a system for regional citrate anticoagulation in an extracorporeal blood circuit.Type: ApplicationFiled: September 19, 2019Publication date: January 9, 2020Inventors: Jan Sternby, Anders Wieslander
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Patent number: 10507279Abstract: A control system (23) is arranged to control the operation of an apparatus (200) for extracorporeal blood treatment. The apparatus (200) comprises an extracorporeal blood circuit (20) and a connection system (C) for connecting the blood circuit (20) to the vascular system of a patient. The blood circuit (20) comprises a blood processing device (6), and at least one pumping device (3). The control system is operable to switch between a pre-treatment mode and a blood treatment mode. The blood treatment mode involves operating the blood circuit (20) to pump blood from the vascular system via the connection system (C) through the blood processing device (6) and back to the vascular system via the connection system (C). The control system (23) is operable to obtain measurement data from at least one energy transfer sensor (40) arranged to sense a transfer of energy between the patient and the connection system (C) or between the patient and the blood circuit (20).Type: GrantFiled: October 31, 2017Date of Patent: December 17, 2019Assignee: Gambro Lundia ABInventors: Bo Olde, Kristian Solem, Thomas Hertz, Jan Sternby, Anders Wieslander
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Patent number: 10463779Abstract: The present invention concerns a multipart fluid system for dialysis therapy, wherein the multipart fluid system comprises an anticoagulation fluid and at least one treatment fluid from the group consisting of dialysis fluid and infusion fluids. According to the invention the anticoagulation fluid comprises 10-40 mM citrate, and 0.1-2.0 mM phosphate; and the at least one treatment fluid comprises 0-5 mM total calcium, 0-8 mM citrate, and 0.1-2.0 mM phosphate; with provisos that the at least one treatment fluid comprises citrate when total calcium concentration is 0 mM; and the at least one treatment fluid comprises calcium when the citrate concentration is 0 mM. The present invention further concerns a system for regional citrate anticoagulation in an extracorporeal blood circuit.Type: GrantFiled: April 30, 2014Date of Patent: November 5, 2019Assignee: GAMBRO LUNDIA ABInventors: Petra Åhl, Gabriela Godaly, Anders Nilsson, Jan Sternby, Anders Wieslander
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Patent number: 10420797Abstract: The present invention concerns an anticoagulation fluid comprising 10-40 mM citrate and 0.1-4 mM phosphate. The anticoagulation fluid is to be used for regional citrate anticoagulation in an extracorporeal blood circuit. The anticoagulation fluid may be combined with at least one treatment fluid in the dialysis treatment, and it may be included in a system for regional citrate anticoagulation in an extracorporeal blood circuit.Type: GrantFiled: April 30, 2014Date of Patent: September 24, 2019Assignee: Gambro Lundia ABInventors: Jan Sternby, Anders Wieslander
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Patent number: 10369266Abstract: The present invention concerns a multipart fluid system for dialysis therapy, wherein the multipart fluid system comprises an anticoagulation fluid and at least one treatment fluid from the group consisting of dialysis fluid and infusion fluids. According to the invention the anticoagulation fluid comprises 15-40 mM citrate; and the at least one treatment fluid comprises 1.5-8 mM citrate and ?10 mM bicarbonate. The present invention further concerns a system for citrate anticoagulation in an extracorporeal blood circuit.Type: GrantFiled: April 30, 2014Date of Patent: August 6, 2019Assignee: GAMBRO LUNDIA ABInventors: Petra Åhl, Gabriela Godaly, Jan Sternby, Anders Wieslander
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Publication number: 20190151265Abstract: The invention provides a first concentrate comprising lactate and calcium ions, said first concentrate having increased stability against precipitation at temperatures around +4° C., said first concentrate being useful for preparing a ready-to-use dialysis fluid by mixing said first concentrate with water and optionally a second concentrate comprising glucose, wherein that the lactate concentration Lconc (expressed in moles per litre, M) of the concentrate fulfills the conditions: a) Lconc>0.8 M; and b) Lconc<(1.9?0.4×Caready) M; and wherein Caready is the calcium concentration of the ready-to-use dialysis fluid expressed in millimoles per litre (mM).Type: ApplicationFiled: May 5, 2017Publication date: May 23, 2019Inventors: Anders Wieslander, Ola Carlsson, Karin Sandin, Simon Enarsson, Viktoria Hancock
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Publication number: 20190151526Abstract: The present invention concerns a system for preparing a ready-to-use peritoneal dialysis fluid. The system comprises a) a proportioning device; b) at least one source of water; c) at least one source of first concentrate adapted for connection with a) and b), d) at least one source of second concentrate adapted for connection with a) and b), and optionally, e) at least one source of further concentrate adapted for connection with a) and b), wherein the first concentrate comprises glucose and has a pH of between 1.5 and 4, and wherein the second concentrate comprises a physiologically acceptable buffer and has a pH of between 5.5 and 9.0.Type: ApplicationFiled: May 5, 2017Publication date: May 23, 2019Inventors: Anders Wieslander, Olof Jansson, Ola Carlsson, Sture Hobro, Karin Sandin, Simon Enarsson