Patents by Inventor Per Kjellstrand

Per Kjellstrand 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: 8367731
    Abstract: The present invention concerns a peritoneal dialysis fluid with enhanced ultrafiltration during the dialysis dwell period. According to the present invention this is achieved by a peritoneal dialysis fluid comprising sodium ions, osmotic agent and a buffer, characterised in that it comprises citrate at a level of 4 to 10 mM in a final solution ready for use.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: February 5, 2013
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Anders Wieslander, Ola Carlsson, Magnus Braide, Per Kjellstrand
  • Patent number: 7727220
    Abstract: The invention refers to a medical system comprising a first subsystem with a first connection portion (7), and a second subsystem with a second connection portion (12). The invention also refers to a device and a method for connecting the subsystems to each other. One of the subsystems contains a fluid. The connecting device is adapted to connect the subsystems to each other to permit transport of the fluid from one of the subsystems to the other subsystem. The device comprises a container (21) enclosing an inner space. A substantially sterile atmosphere is provided in the inner space. The container receives the first connection portion and the second connection portion in the inner space. A mechanism is provided for connecting, from outside the container, the first connection portion and the second connection portion to each other in the inner space.
    Type: Grant
    Filed: August 16, 2004
    Date of Patent: June 1, 2010
    Assignee: Gambro Lundia AB
    Inventors: Anders Wieslander, Sten-Börje Lindqvist, Ellinor Broms, Eddie Nilsson, Per Kjellstrand, Lennart Jönsson, Ola Carlsson
  • Publication number: 20090306211
    Abstract: The present invention concerns a peritoneal dialysis fluid with enhanced ultrafiltration during the dialysis dwell period. According to the present invention this is achieved by a peritoneal dialysis fluid comprising sodium ions, osmotic agent and a buffer, characterised in that it comprises citrate at a level of 4 to 10 mM in a final solution ready for use.
    Type: Application
    Filed: May 3, 2006
    Publication date: December 10, 2009
    Inventors: Anders Wieslander, Ola Carlsson, Magnus Braide, Per Kjellstrand
  • Publication number: 20090139930
    Abstract: An apparatus (100) for extracorporeal blood cleaning includes a separation unit (110), at least two processing branches (120; 130) and a mixing unit (140). The separation unit (110) receives 5 incoming blood (B A) and divides off a first fraction (fC) from this blood. The first fraction (fC) contains predominantly blood cells. The separation unit (110) also divides off at least one second fraction (fP), which contains predominantly blood plasma. A first processing branch (120) processes the first fraction (fC) according to a first cleaning process, in which cell-bound substances are removed from the blood cells. As a result, a first cleaned fraction (fC c) containing washed blood cells is produced. A second processing branch (130) processes the second fraction (fP) according to a second cleaning process in which toxins bound on proteins within the plasma and/or toxins dissolved in 15 the plasma are removed, and a second cleaned fraction (fP c) is produced.
    Type: Application
    Filed: September 25, 2006
    Publication date: June 4, 2009
    Inventors: Jan Sternby, Anders Wieslander, Per Kjellstrand, Torbjorn Linden
  • Publication number: 20070232796
    Abstract: The present invention relates to a medical solution comprising a first single solution containing glucose and/or glucose-like compound. According to the present invention said first single solution has a pH in the range of 1.8-2.6. The present invention further relates to a method for producing said medical solution as well as use thereof.
    Type: Application
    Filed: February 22, 2005
    Publication date: October 4, 2007
    Inventors: Ola Carlsson, Martin Erixon, Gunita Forsback, Per Kjellstrand, Torbjorn Linden, Anders Wieslander
  • Publication number: 20070073215
    Abstract: The invention refers to a medical system comprising a first subsystem with a first connection portion (7), and a second subsystem with a second connection portion (12). The invention also refers to a device and a method for connecting the subsystems to each other. One of the subsystems contains a fluid. The connecting device is adapted to connect the subsystems to each other to permit transport of the fluid from one of the subsystems to the other subsystem. The device comprises a container (21) enclosing an inner space. A substantially sterile atmosphere is provided in the inner space. The container receives the first connection portion and the second connection portion in the inner space. A mechanism is provided for connecting, from outside the container, the first connection portion and the second connection portion to each other in the inner space.
    Type: Application
    Filed: August 16, 2004
    Publication date: March 29, 2007
    Inventors: Anders Wieslander, Sten-Borje Lindqvist, Ellinor Broms, Eddie Nilsson, Per Kjellstrand, Lennart Jonsson, Ola Carlsson
  • Patent number: 6663829
    Abstract: Methods and apparatus are disclosed for reducing the degradation of heat sensitive components contained in a medical substance during heat sterilization of a heat sterilizable container including a first chamber including a first amount of a first medical substance and a second chamber including a second amount of a second medical substance, the first amount being greater than the second amount. The method includes heating the heat sterilizable container to a first predetermined temperature for sterilizing the first and second medical substances, thermally insulating the second chamber during at least a portion of the heating of the heat sterilizable container to the first predetermined temperature, holding the heat sterilizable container at the first predetermined temperature for a first predetermined time period, and cooling the heat sterilizable container thereafter.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: December 16, 2003
    Assignee: Gambro AB
    Inventor: Per Kjellstrand
  • Patent number: 5536469
    Abstract: System employing a sterile medical solution containing glucose or glucose polymers, for example nutritional solutions or solutions for peritoneal dialysis, whereby the majority of the solution is packed in a first package, while the glucose or the glucose polymers are separately packed in a second package, whereafter the two packages are heat sterilized. The content of the glucose or glucose polymers in the second package is maintained above 10% by weight, preferably above 20% by weight and most preferably in the order of 40% by weight in order to reduce or totally eliminate the breakdown of glucose. The medical solution after sterilization, mixing and diluting to 1.5% glucose content has an absorbency caused by breakdown products from glucose at 228 nm less than 0.35 and preferably in the order of 0.20 or lower. The medical solution is also defined in that after sterilization, mixing and dilution to 1.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: July 16, 1996
    Assignee: Gambro AB
    Inventors: Sven Jonsson, Per Kjellstrand, Evi Martinson, Anders Wieslander, Eva Svensson, Anders Andren