Patents by Inventor Nina Meinander

Nina Meinander 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: 11583621
    Abstract: A cartridge to be used for adsorption dialysis. A container having flexible walls are arranged to provide an inner space enclosing adsorption powder, comprising activated carbon, a phosphate adsorbent and a potassium ion adsorbent and other adsorbents. A sufficient amount of activated carbon is provided for adsorption of urea by the activated carbon. The cartridge forms a vacuum-packed transportation cartridge by generating a sub-pressure in the inner space, whereby the powder particles are immobilized and the cartridge becomes stiff. Before use, the cartridge is primed by introducing a liquid into the inner space, which introduction takes place at a low pressure. During use, dialysis solution is circulated through the cartridge, which is still exposed to a sub-pressure, whereby the flexible walls are sucked against the powder material.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: February 21, 2023
    Assignee: TRIOMED AB
    Inventors: Anders Wallenås, Nina Meinander, Carin Malmborg, Stefan Landholm, Hans Bengtsson
  • Publication number: 20180140765
    Abstract: A cartridge to be used for adsorption dialysis. A container having flexible walls are arranged to provide an inner space enclosing adsorption powder, comprising activated carbon, a phosphate adsorbent and a potassium ion adsorbent and other adsorbents. A sufficient amount of activated carbon is provided for adsorption of urea by the activated carbon. The cartridge forms a vacuum-packed transportation cartridge by generating a sub-pressure in the inner space, whereby the powder particles are immobilized and the cartridge becomes stiff. Before use, the cartridge is primed by introducing a liquid into the inner space, which introduction takes place at a low pressure. During use, dialysis solution is circulated through the cartridge, which is still exposed to a sub-pressure, whereby the flexible walls are sucked against the powder material.
    Type: Application
    Filed: May 27, 2016
    Publication date: May 24, 2018
    Applicant: TRIOMED AB
    Inventors: Anders WALLENÃ…S, Nina MEINANDER, Carin MALMBORG, Stefan LANDHOLM, Hans BENGTSSON
  • Publication number: 20150320922
    Abstract: A method of producing a copper-chitosan polymer material for adsorption of urea from a dialysis solution. A solid chitosan polymer material is immersed in a copper salt solution of a weak acid, such as copper acetate, for allowing the copper ions to complex with the chitosan polymer. The macroporous chitosan polymer membrane has a thickness of no more than about 200 ??? and has a pore size of between about 1 to 100 ???, for example 20 to 50 ???. Alternatively, solid chitosan fibers, solid chitosan particles or a chitosan gel bead can be complexed with copper acetate. The concentration of the copper acetate solution is above 50 mM whereby gel formation of the solid chitosan material is avoided during the complexation step.
    Type: Application
    Filed: July 5, 2013
    Publication date: November 12, 2015
    Applicant: TRIOMED AB
    Inventors: Carin MALMBORG, Nina MEINANDER
  • Publication number: 20150297815
    Abstract: A method of adsorption of potassium ions from a peritoneal dialysis fluid, which has been removed from the peritoneal cavity of a patient performing peritoneal dialysis for subsequent recirculation and introduction into the peritoneal cavity of the patient. The peritoneal dialysis fluid is passed through a potassium adsorbent, such as a zeolite, which has been pre-equilibrated with an equilibration fluid comprising Na+, Ca2+, Mg2+, Cl?, lactate, in substantially the same concentration as in the peritoneal dialysis fluid and which equilibration fluid lacks K+. The zeolite may be titrated with an acid. Alternatively, a zeolite having a Si:Al ratio which is larger than 5:1 is used. Alternatively, a cation exchange material, such as sodium polystyrene sulfonate, is used.
    Type: Application
    Filed: November 22, 2013
    Publication date: October 22, 2015
    Applicant: TRIOMED AB
    Inventor: Nina MEINANDER
  • Publication number: 20150273131
    Abstract: Claims 1-5 relate to methods for treatment of the human or animal body by therapy, since the claims describe changing the compositions of the circulation dialysis fluid, which will affect the ion concentration in the patient's blood. See PCT rule 43bis.1 (b) and PCT rule 67.1.(iv). Nevertheless, an examination has been conducted for these claims. The examination has been made in respect of the technical content of the claims.
    Type: Application
    Filed: November 22, 2013
    Publication date: October 1, 2015
    Applicant: TRIOMED AB
    Inventors: Carin Malmborg, Nina Meinander