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).

  • Publication number: 20250032435
    Abstract: 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: Application
    Filed: October 10, 2024
    Publication date: January 30, 2025
    Inventors: Anders Wieslander, Ola Carlsson, Karin Sandin, Simon Enarsson, Viktoria Hancock
  • Patent number: 12144790
    Abstract: 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: Grant
    Filed: May 5, 2017
    Date of Patent: November 19, 2024
    Assignee: Gambro Lundia AB
    Inventors: Anders Wieslander, Ola Carlsson, Karin Sandin, Simon Enarsson, Viktoria Hancock
  • Patent number: 12138280
    Abstract: 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: Grant
    Filed: October 25, 2018
    Date of Patent: November 12, 2024
    Assignee: GAMBRO LUNDIA AB
    Inventors: Anders Wieslander, Olof Jansson, Anders Wellings
  • Publication number: 20230331613
    Abstract: A method and a system (10a) comprising an integrated water purifying apparatus (110) with a pre-filter circuit (402) including a particle filter and an activated carbon filter for producing pre-treated water; a fluid circuit (404) arranged to receive pre-treated water from the pre-filter circuit (402), the fluid circuit (404) includes an RO-pump (450) and a Reverse Osmosis, RO, device, (301) arranged to produce purified water; a heating device (302) arranged to heat purified water to a temperature above 65° C.; the water purifying apparatus (110) further arranged to heat disinfect the fluid circuit (404) using the heated purified water. The system further comprises a line set (40) connected to the purified water outlet connector (128) at a water line connector (68), the line set (40) including at least one sterile sterilizing grade filter (70a, 70b) arranged to filter the purified water into sterile purified water.
    Type: Application
    Filed: June 22, 2023
    Publication date: October 19, 2023
    Inventors: Anders WIESLANDER, Olof JANSSON, Per-Ola WICTOR, Anders WELLINGS, Helena JEPPSSON
  • Patent number: 11718546
    Abstract: 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: Grant
    Filed: November 6, 2017
    Date of Patent: August 8, 2023
    Assignees: Baxter International Inc., Baxter Healthcare SA
    Inventors: Anders Wieslander, Olof Jansson, Per-Ola Wictor, Anders Wellings, Helena Jeppsson
  • Publication number: 20230202896
    Abstract: A method and a system (10a) comprising an integrated water purifying apparatus (110) with a pre-filter circuit (402) including a particle filter and an activated carbon filter arranged to produce pre-treated water; a fluid circuit (404) arranged to receive pre-treated water from the pre-filter circuit (402), the fluid circuit (404) includes an RO-pump (450) and a Reverse Osmosis, RO, device, (301) arranged to produce purified water; a heating device (302) arranged to heat purified water from the RO device (301) to a temperature above 65°; the water purifying apparatus (110) is further arranged to heat disinfect the fluid circuit (404) using the heated purified water. The system (1) further comprises a line set (40) connected to the purified water outlet connector (128) at a water line connector (68) of the line set (40), wherein the line set (40) includes at least one sterile sterilizing grade filter (70a, 70b) arranged to filter the purified water into sterile purified water.
    Type: Application
    Filed: November 6, 2017
    Publication date: June 29, 2023
    Inventors: Anders WIESLANDER, Olof JANSSON, Per-Ola WICTOR, Anders WELLINGS, Helena JEPPSSON
  • Publication number: 20230181505
    Abstract: The present invention concerns a package comprising an acidic citrate containing concentrate, an acidic citrate containing concentrate (or acidic citrate containing solution), and a system wherein the acidic citrate containing concentrate is included for providing a dialysis treatment. The acidic citrate containing concentrate contains citric acid and citrate in a molar ratio of 75:25 to 85:15, and has a pH of between 2 and 3.
    Type: Application
    Filed: February 10, 2023
    Publication date: June 15, 2023
    Inventors: Husam Mohammed, Anders WIESLANDER, Viktoria HANCOCK, Karin SANDIN, Ola CARLSSON, Torbjorn LINDEN, Anna SZILAGYI
  • Patent number: 11285173
    Abstract: 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: Grant
    Filed: July 29, 2020
    Date of Patent: March 29, 2022
    Assignee: Gambro Lundia AB
    Inventors: Ola Carlsson, Malin Ernebrant, Gunita Forsback, Anders Wieslander, Therese Svensson
  • Patent number: 11253543
    Abstract: 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: Grant
    Filed: November 1, 2017
    Date of Patent: February 22, 2022
    Assignee: GAMBRO LUNDIA AB
    Inventors: Ola Carlsson, Lennart Jonsson, Torbjorn Linden, Anders Wieslander
  • Patent number: 11026968
    Abstract: 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: Grant
    Filed: September 19, 2019
    Date of Patent: June 8, 2021
    Assignee: Gambro Lundia AB
    Inventors: Jan Sternby, Anders Wieslander
  • Patent number: 10993961
    Abstract: 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: Grant
    Filed: June 20, 2011
    Date of Patent: May 4, 2021
    Assignee: Gambro Lundia AB
    Inventors: Ola Carlsson, Torbjorn Linden, Lennart Jonsson, Anders Wieslander
  • Patent number: 10894119
    Abstract: 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: Grant
    Filed: May 5, 2017
    Date of Patent: January 19, 2021
    Assignee: Gambro Lundia AB
    Inventors: Anders Wieslander, Olof Jansson, Ola Carlsson, Sture Hobro, Karin Sandin, Simon Enarsson
  • Publication number: 20200384019
    Abstract: 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: Application
    Filed: July 29, 2020
    Publication date: December 10, 2020
    Inventors: Ola Carlsson, Malin Ernebrant, Gunita Forsback, Anders Wieslander, Therese Svensson
  • Publication number: 20200345762
    Abstract: Methods are provided for preparing a ready-to-use peritoneal dialysis fluid for peritoneal dialysis of a patient. The methods comprise mixing, immediately before administration to the patient, appropriate amounts of at least a first concentrate and a second concentrate with an appropriate amount of water to form a ready-to-use dialysis fluid. The first concentrate comprises glucose and has a pH of between 1.5 and 4; and the second concentrate comprises a physiologically acceptable buffer and sodium ions, and has a pH of between 5.0 and 9.0. The ready-to-use dialysis fluid has a sodium ion concentration of about 110 mM to about 145 mM and an osmolality of about 0.20 to about 0.50 Osm/kg.
    Type: Application
    Filed: October 25, 2018
    Publication date: November 5, 2020
    Inventors: Olof JANSSON, Anders WIESLANDER
  • Publication number: 20200338117
    Abstract: 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: Application
    Filed: October 25, 2018
    Publication date: October 29, 2020
    Inventors: Anders WIESLANDER, Olof JANSSON, Anders WELLINGS
  • Patent number: 10729722
    Abstract: 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: Grant
    Filed: March 1, 2016
    Date of Patent: August 4, 2020
    Assignee: Gambro Lundia AB
    Inventors: Ola Carlsson, Malin Ernebrant, Gunita Forsback, Anders Wieslander, Therese Svensson
  • Patent number: 10729721
    Abstract: 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: Grant
    Filed: October 14, 2005
    Date of Patent: August 4, 2020
    Assignee: Gambro Lundia AB
    Inventors: Ola Carlsson, Malin Ernebrant, Gunita Forsbäck, Anders Wieslander, Therese Svensson
  • Patent number: 10716886
    Abstract: 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: Grant
    Filed: May 5, 2017
    Date of Patent: July 21, 2020
    Assignee: GAMBRO LUNDIA AB
    Inventors: Anders Wieslander, Anders Wellings, Olof Jansson
  • Publication number: 20200069858
    Abstract: A method and a system (10a) comprising an integrated water purifying apparatus (110) with a pre-filter circuit (402) including a particle filter and an activated carbon filter arranged to produce pre-treated water; a fluid circuit (404) arranged to receive pre-treated water from the pre-filter circuit (402), the fluid circuit (404) includes an RO-pump (450) and a Reverse Osmosis, RO, device, (301) arranged to produce purified water; a heating device (302) arranged to heat purified water from the RO device (301) to a temperature above 65°; the water purifying apparatus (110) is further arranged to heat disinfect the fluid circuit (404) using the heated purified water. The system (1) further comprises a line set (40) connected to the purified water outlet connector (128) at a water line connector (68) of the line set (40), wherein the line set (40) includes at least one sterile sterilizing grade filter (70a, 70b) arranged to filter the purified water into sterile purified water.
    Type: Application
    Filed: November 6, 2017
    Publication date: March 5, 2020
    Inventors: Anders WIESLANDER, Olof JANSSON, Per-Ola WICTOR, Anders WELLINGS, Helena JEPPSSON
  • Publication number: 20200009186
    Abstract: 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: Application
    Filed: September 19, 2019
    Publication date: January 9, 2020
    Inventors: Jan Sternby, Anders Wieslander