Patents by Inventor Yuriy N. TATASHIN

Yuriy N. TATASHIN 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: 20240091423
    Abstract: A method of automatically ensuring against chloramine contamination in purified product water includes supplying input water to the system and purifying the water to generate the purified product water. The purifying includes removing chlorine and chloramine contamination from the water using a carbon filter and supplying chlorine-depleted water to a deionization filter, and deionizing the chlorine-depleted water using said deionization filter. The product water is supplied to a sensor for continuous monitoring of the resistivity of the purified product water by the first sensor, and an alarm is generated indicating possible chloramine breakthrough when the resistivity of the product water falls below a predetermined resistivity level, which is selected to provide a reserve filter capacity before breakthrough would occur. The carbon filter is replaced at least responsively to the alarm to ensure excess capacity of said carbon filter sufficient to prevent chloramine breakthrough in said product water.
    Type: Application
    Filed: November 29, 2023
    Publication date: March 21, 2024
    Applicant: NxStage Medical, Inc.
    Inventors: Goetz FRIEDERICHS, Dennis M. TREU, Jeffrey H. BURBANK, Yuriy N. TATASHIN
  • Patent number: 11865240
    Abstract: A method of automatically ensuring against chloramine contamination in purified product water includes supplying input water to the system and purifying the water to generate the purified product water. The purifying includes removing chlorine and chloramine contamination from the water using a carbon filter and supplying chlorine-depleted water to a deionization filter, and deionizing the chlorine-depleted water using said deionization filter. The product water is supplied to a sensor for continuous monitoring of the resistivity of the purified product water by the first sensor, and an alarm is generated indicating possible chloramine breakthrough when the resistivity of the product water falls below a predetermined resistivity level, which is selected to provide a reserve filter capacity before breakthrough would occur. The carbon filter is replaced at least responsively to the alarm to ensure excess capacity of said carbon filter sufficient to prevent chloramine breakthrough in said product water.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: January 9, 2024
    Assignee: NxStage Medical, Inc.
    Inventors: Goetz Friederichs, Dennis M. Treu, Jeffrey H. Burbank, Yuriy N. Tatashin
  • Publication number: 20210178041
    Abstract: A method of automatically ensuring against chloramine contamination in purified product water includes supplying input water to the system and purifying the water to generate the purified product water. The purifying includes removing chlorine and chloramine contamination from the water using a carbon filter and supplying chlorine-depleted water to a deionization filter, and deionizing the chlorine-depleted water using said deionization filter. The product water is supplied to a sensor for continuous monitoring of the resistivity of the purified product water by the first sensor, and an alarm is generated indicating possible chloramine breakthrough when the resistivity of the product water falls below a predetermined resistivity level, which is selected to provide a reserve filter capacity before breakthrough would occur. The carbon filter is replaced at least responsively to the alarm to ensure excess capacity of said carbon filter sufficient to prevent chloramine breakthrough in said product water.
    Type: Application
    Filed: March 2, 2021
    Publication date: June 17, 2021
    Applicant: NxStage Medical, Inc.
    Inventors: Goetz FRIEDERICHS, Dennis M. TREU, Jeffrey H. BURBANK, Yuriy N. TATASHIN
  • Patent number: 10960121
    Abstract: A method of automatically ensuring against chloramine contamination in purified product water includes supplying input water to the system and purifying the water to generate the purified product water. The purifying includes removing chlorine and chloramine contamination from the water using a carbon filter and supplying chlorine-depleted water to a deionization filter, and deionizing the chlorine-depleted water using said deionization filter. The product water is supplied to a sensor for continuous monitoring of the resistivity of the purified product water by the first sensor, and an alarm is generated indicating possible chloramine breakthrough when the resistivity of the product water falls below a predetermined resistivity level, which is selected to provide a reserve filter capacity before breakthrough would occur. The carbon filter is replaced at least responsively to the alarm to ensure excess capacity of said carbon filter sufficient to prevent chloramine breakthrough in said product water.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: March 30, 2021
    Assignee: NxStage Medical, Inc.
    Inventors: Goetz Friederichs, Dennis M. Treu, Jeffrey H. Burbank, Yuriy N. Tatashin
  • Publication number: 20180207342
    Abstract: A method of automatically ensuring against chloramine contamination in purified product water includes supplying input water to the system and purifying the water to generate the purified product water. The purifying includes removing chlorine and chloramine contamination from the water using a carbon filter and supplying chlorine-depleted water to a deionization filter, and deionizing the chlorine-depleted water using said deionization filter. The product water is supplied to a sensor for continuous monitoring of the resistivity of the purified product water by the first sensor, and an alarm is generated indicating possible chloramine breakthrough when the resistivity of the product water falls below a predetermined resistivity level, which is selected to provide a reserve filter capacity before breakthrough would occur. The carbon filter is replaced at least responsively to the alarm to ensure excess capacity of said carbon filter sufficient to prevent chloramine breakthrough in said product water.
    Type: Application
    Filed: March 19, 2018
    Publication date: July 26, 2018
    Applicant: NxStage Medical, Inc.
    Inventors: Goetz FRIEDERICHS, Dennis M. TREU, Jeffrey H. BURBANK, Yuriy N. TATASHIN
  • Publication number: 20150374895
    Abstract: A water purification component, which may be integrated in a medicament production plant and/or a blood treatment system, removes chloramine and other chlorine compounds and deionizes water. The deionization is selected to be effective for providing product water whose resistivity is sufficiently high to allow chloramine to be detected in the product water if the chloramine removal filtration fails. This allows a chloramine removal filter to be changed based on a predicted exhaustion schedule with the safety of automatic chloramine breakthrough provided.
    Type: Application
    Filed: January 24, 2014
    Publication date: December 31, 2015
    Inventors: Goetz FRIEDERICHS, Dennis M. TREU, Jeffrey H. BURBANK, Yuriy N. TATASHIN