Patents Examined by Krishnan S Menon
  • Patent number: 11969675
    Abstract: An inline-type strainer including a drain line and a screen configured to be attachable to and detachable from a housing is provided. A screen is supported to be attachable to and detachable from a lid. A lid coupling mechanism that couples a housing and the lid when the lid is attached to the housing is provided between a bottom surface of the housing facing the filter chamber and a lower end of the lid. A lower discharge flow path is formed in a lower coupling element on a side close to the housing constituting the lid coupling mechanism, and an upper discharge flow path is formed in the upper coupling element on a side close to the lid constituting the lid coupling mechanism. When the lid is attached to the housing, a coupling state is established between the upper and lower coupling elements, and the upper and lower discharge flow paths communicate with each other, and thus a drain line is constructed.
    Type: Grant
    Filed: April 6, 2020
    Date of Patent: April 30, 2024
    Assignee: Three-M Industry Co., Ltd.
    Inventors: Hideo Okuno, Takeshi Takahashi, Takanori Hashihira, Ichiro Morita
  • Patent number: 11964084
    Abstract: The present invention relates to a phosphate adsorbing agent for blood processing comprising a porous formed article comprising an organic polymer resin and an inorganic ion adsorbent and having the most frequent pore size of 0.08 to 0.70 ?m measured with a mercury porosimeter. The present invention also relates to a blood processing system and a blood processing method involving the phosphate adsorbing agent for blood processing.
    Type: Grant
    Filed: August 16, 2022
    Date of Patent: April 23, 2024
    Assignee: ASAHI KASEI MEDICAL CO., LTD.
    Inventors: Naoki Morita, Hiroshi Tajima, Ryou Sasaki, Hirokazu Nagai, Akihiro Omori
  • Patent number: 11964085
    Abstract: The present invention relates to an apparatus and to a method for filling a solution bag for dialysis with a liquid, wherein the apparatus comprises a needle for introduction into a filling line or filling opening of the bag, wherein the needle is a double wall needle having a preferably thermally conductive outer wall and having an inner wall, with a thermal insulation being present between the outer wall and the inner wall; and with a heating element being provided that is configured to heat the outer side of the outer wall to a temperature above the temperature of the inner side of the inner wall.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: April 23, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Peter Wabel, Marcus Breuninger, Robert Berlich, Birgit Staude, Matthias Rau, Zdenek Cerman
  • Patent number: 11958021
    Abstract: A method for determining residual filtration capacity of an adsorbent filter includes: selecting probe and carrier gases; at a given operating temperature, pressure and hygrometry, selecting injection parameters including sudden probe gas concentration variation in the carrier gas for a reference filter; injecting the probe and carrier gases into the reference filter per the injection parameters and measuring the change of probe gas concentration, downstream of the reference filter, for different known reference filter saturation levels, for a filter under test; injecting the probe and carrier gases into the filter under test according to the injection parameters and measuring the concentration change of probe gas, downstream of the filter under test; comparing the concentration change of the probe gas for the filter under test and the reference filter, for determining a saturation value of the filter under test; and deducing the residual filtration capacity of the filter under test.
    Type: Grant
    Filed: January 6, 2022
    Date of Patent: April 16, 2024
    Assignee: ETAT FRANÇAIS REPRÉSENTÉ PAR LE DÉLÉGUÉ GÉNÉRAL POUR L'ARMEMENT
    Inventors: Benoît Chandesris, Estelle Soubeyrand-Lenoir, Alexandre Schiavo, Patricia Soler, Maxime Kervella
  • Patent number: 11951240
    Abstract: A CRRT apparatus comprising a filtration unit (2), a blood circuit (17), a blood pump (21), a dialysate line (13) and one or more lines (8; 51; 57; 58; 63; 69; 67; 74) to transfer a respective solution into blood; a fluid source for each of said one or more lines, wherein said solution comprises at least one buffer agent in the form of bicarbonate or bicarbonate precursor. A control unit (12) is configured to receive a patient prescription and to determine a parameter (Jbuffer_load/BW) indicative of a steady state acid-base balance in the blood of the patient who has to undergo a CRRT blood treatment, wherein said parameter is determined as a function of the concentration of said buffer agent in said fluid source and as a function of the estimated or calculated patient systemic steady state concentration of bicarbonate and/or bicarbonate precursors.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: April 9, 2024
    Assignee: Gambro Lundia AB
    Inventor: Dominique Pouchoulin
  • Patent number: 11944734
    Abstract: A blood purification apparatus that includes a blood circuit including an arterial blood circuit and a venous blood circuit and through which blood of a patient is allowed to extracorporeally circulate; a blood purification unit connected to and provided between the arterial blood circuit and the venous blood circuit and that purifies the blood flowing through the blood circuit; a blood pump provided to the arterial blood circuit and that delivers the blood of the patient from a distal end of the arterial blood circuit to a distal end of the venous blood circuit; a substitution line through which a substitution fluid is allowed to be introduced into the blood circuit; and an infusion portion attached to the substitution line and from which a predetermined liquid drug to be administered to the patient is allowed to be infused into the substitution line.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: April 2, 2024
    Assignee: Nikkiso Company Limited
    Inventor: Yuki Katayama
  • Patent number: 11938258
    Abstract: An extracorporeal blood treatment device and a method are provided for removing a secondary membrane formed on a semipermeable membrane of a dialyzer during an extracorporeal blood treatment. The extracorporeal blood treatment device operates in a first operating mode in which a dialysate outlet valve is open such that dialysate flows through a dialyzer feed line, through a dialysate chamber, and into and through a dialyzer discharge line. The extracorporeal blood treatment device operates in a second operating mode to remove the secondary membrane from the semipermeable membrane. During the second operating mode, the dialysate outlet valve is closed for a duration of time such that dialysate is prevented from flowing through the dialyzer discharge line. A backflush procedure results wherein a volume of dialysate passes from the dialysate chamber through the semipermeable membrane and into the blood chamber.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: March 26, 2024
    Assignee: FRESENIUS MEDICAL CARE HOLDINGS, INC.
    Inventors: Matthew Doyle, Robert Anthony Zimmerman
  • Patent number: 11931494
    Abstract: The invention relates to a dialysis machine having a fluid system that has an inflow line for providing fresh dialyzing solution to a dialyzer and an outflow line for removing used dialyzing solution from the dialyzer, wherein the fluid system has a balancing system arranged between the inflow and outflow lines to balance the fluid volumes flowing through the lines, and wherein the fluid system has an ultrafiltration line that branches off from the outflow line between the dialyzer and the balancing system and has an ultrafiltration pump to be able to remove a defined volume of used dialyzing solution from the balance, and wherein an additional balancing chamber is provided that is arranged in a section of the inflow line disposed between the balancing system and the dialyzer or in a section of the outflow line disposed between the dialyzer and the branching of the ultrafiltration line.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: March 19, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Tobias Irrgang, Benedict Glaser, Peter Klöffel
  • Patent number: 11925906
    Abstract: A preparation method and a device for a seawater desalination-seawater extraction uranium membrane lining are provided. The preparation method is as follow: the lining is configured as a finished product for standby through the following process, including cleaning, drying, restoration of circular, generating burrs, fixing the length of burrs; the device includes the first module, the second module, the third module, the fourth module and the fifth module. The present invention has the advantages of simple operation, short time, low cost and obvious treatment effect, the bonding strength between the separation function layer and the lining is enhanced, and the separation function layer is not easy to fall off, the physical damage resistance is greatly increased, it is not easy to fall off and the initial bubble point pressure of the prepared enhanced film is high.
    Type: Grant
    Filed: October 16, 2023
    Date of Patent: March 12, 2024
    Assignee: HARBIN ENGINEERING UNIVERSITY
    Inventors: Jun Wang, Bingtao Zhang, Hongsen Zhang, Qi Liu, Jing Yu, Jiahui Zhu, Jingyuan Liu, Rongrong Chen
  • Patent number: 11925905
    Abstract: The forward osmosis membrane and the preparation method thereof provided by the present invention, through fully cover the support mesh layer of the membrane with antibacterial nanoparticles, especially the mixture of nano-Ag and nano TiO2, ensures without reducing the strength, water flux and salt rejection, providing an effective, long-term and comprehensive antibacterial effect. In the present invention, the antibacterial nanoparticles, especially the mixture of nano-Ag and nano-TiO2, are used to carry out antibacterial modification on the support mesh of the forward osmosis membrane, so as to inhibit the growth of bacteria on the forward osmosis membrane, improves the forward osmosis and also improves the safety of the entire purification and filtration system. The antibacterial forward osmosis membrane of the present invention can be applied to the filtration and purification of complex water sources, especially the purification and filtration of eutrophic and bacteria-prone water sources.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: March 12, 2024
    Assignee: BEIJING BAOSHENGTONG INTERNATIONAL ELECTRIC ENGINEERING TECHNOLOGY CO., LTD.
    Inventor: Chun Tang
  • Patent number: 11918958
    Abstract: The present invention discloses a Fe—Al-based metal porous membrane and a preparation method thereof, which relate to the technical field of industrial gas-solid and liquid-solid separation and purification, and mainly address problems in the prior art, such as cracking-prone and peeling of a membrane layer of an existing Fe—Al-based metal porous membrane during its preparation and use. The preparation method of the present invention comprises the steps of: adding a Fe—Al-based metal powder and a metal fiber powder into an organic-additive-added water-based solvent, and mixing them into a slurry; casting the slurry, through a casting machine, to form a membrane green body on a metal substrate layer, and letting it dry; and placing the dried membrane green body in a sintering furnace, to remove organic substances and perform high-temperature sintering and predetermined-temperature reaction synthesis.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: March 5, 2024
    Assignee: AT&M ENVIRONMENTAL ENGINEERING TECHNOLOGY CO., LTD.
    Inventors: Hu Gu, Junjun Yang, Fan Wang, Guanying Liu, Yu Zhang, Ying Dai, Xuan Yang, Kun Wang, Shiyu Lin
  • Patent number: 11918957
    Abstract: A method for preparing an adsorptive media for binding biologic molecules comprising immersing a macroporous support in a first solution of a coupling reagent in a solvent solution for attachment of said coupling reagent to form coupling groups; and, immersing said macroporous support in an incubating solution selected from the group consisting of ligand, nucleotide, oligonucleotide, peptide, polypeptide, protein, and enzyme solutions having an affinity to a biologic target molecule to couple one of said ligands, nucleotides, oligonucleotides, peptides, polypeptides, proteins, and enzymes to at least a portion of said coupling groups of said macroporous support for binding with said biologic target molecule when exposed to said macroporous support.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: March 5, 2024
    Assignee: Donaldson Company, Inc.
    Inventors: Jinxiang Zhou, Graham Temples, Daniel Henn
  • Patent number: 11919816
    Abstract: A filter including a porous support defining one or more channels therethrough, and a porous ceramic membrane layer on a surface of the porous support defining at least one of the one or more channels. The ceramic membrane layer includes an inorganic ceramic composition having the formula SiMpxpCyNzOmHn, where each Mp present is independently selected from a p-block element or a d-block element; p is an integer from 1 to 5; for each Mp present, xp is independently from about 0 to about 60; y is from about 0 to about 60; z is from about 0 to about 60; m is from about 0 to about 40; and n is zero or nonzero. At least one of y and z is nonzero when p is zero, and p is nonzero when y and z are both zero.
    Type: Grant
    Filed: May 26, 2022
    Date of Patent: March 5, 2024
    Assignees: Saudi Arabian Oil Company, Ecole Nationale Supérieure de Chimie de Montpelli
    Inventors: Subhi Mohammed Hassan Al-Jeshi, Aziz Cherifi, David Cornu, Sophie Cerneaux
  • Patent number: 11918722
    Abstract: The present disclosure relates to an insert piece for a blood tubing set. The insert piece includes at least a first connection site for connecting a first tubing portion of the blood tubing set to the insert piece, and a second connection site for connecting a second tubing portion of the blood tubing set to the insert piece. The insert piece also includes a third connection site for connecting a third tubing portion of the blood tubing set to the insert piece, and a main line for forwarding a first liquid through the insert piece. The main line is in fluid communication with the first connection site and with the second connection site. The insert piece also includes a secondary line for forwarding a second liquid into the main line. The secondary line is in fluid communication with the third connection site.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: March 5, 2024
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Jürgen Häcker, Jürgen Klewinghaus
  • Patent number: 11912594
    Abstract: A carbon disulfide-modified amine additive may be introduced to an aqueous stream in an effective amount to separate oil from the water in the aqueous stream, such as separating at least some of the oil from emulsified oil-in-water in a production fluid, where the oil is crude oil. The carbon disulfide-modified amine additive may be produced from a reaction of synthetic amine, natural amines, or chemically modified natural amines with carbon disulfide and an ?,?-unsaturated compound and/or an epoxide in one step. In one non-limiting embodiment, the amine is a natural amine or chemically modified natural amine of a polysaccharide containing amino functional group(s). Optionally, a base catalyst is used to make the carbon disulfide-modified amine additive.
    Type: Grant
    Filed: June 14, 2021
    Date of Patent: February 27, 2024
    Assignee: Baker Hughes Oilfield Operations LLC
    Inventors: Jian Zou, Bruce Oyer Horne, II
  • Patent number: 11904079
    Abstract: A degassing module that may be used in conjunction with a sorbent regeneration cartridge is described. The degassing module may include an air inlet port, a fluid outlet port, a gas outlet port, first and second channels located in an interior chamber, a port connecting the first and second channels, and a hydrophobic membrane positioned above the second channel. The first channel may be in fluid communication with the air inlet port and the second channel may be in communication with the fluid outlet port. In some embodiments, each of the first and second channels may have a spiral configuration.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: February 20, 2024
    Assignee: DIALITY INC.
    Inventor: Brandon Borillo
  • Patent number: 11904260
    Abstract: A device for separating a fluid component from a fluid, in particular compressed air of a vehicle, is provided. The device has a first container for containing the fluid, the first container being arranged to separate at least a part of one or more components contained in the fluid from the fluid by evaporation. The first container includes one or more openings through which a substance can be supplied to the fluid in the first container for breaking an emulsion or mixture of two or more components contained in the fluid and an exhaust through which the at least part of the one or more separated components can be exhausted.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: February 20, 2024
    Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbH
    Inventors: Zsombor Gyoerke, Kornel Kantor, Huba Nemeth, Janos Toth, Zoltan Laszlo Vass
  • Patent number: 11904278
    Abstract: The present disclosure provides an electrodialysis stack that may be used for the treatment of an electrically conductive solution. The stack includes two electrodes (at least one is a recessed electrode), a plurality of ion-transport membranes and stack spacers. The membranes and spacers are arranged between the electrodes to define electrodialysis cell pairs. The stack includes an electrically insulated zone that extends substantially from a distribution manifold past the recessed edge of the electrode and substantially from the recessed electrode to the opposite electrode for a distance that is about 8% to 100% of the total distance between the electrodes. The overlap distance that the electrically insulated zone extends past the recessed edge of the electrode is calculated as: distance in cm=(0.062 cm?1)*(exp(?60/total cp)*(area in cm2 of the manifold ducts of the concentrated stream at the recessed edge)+/?10%.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: February 20, 2024
    Assignee: BL TECHNOLOGIES, INC.
    Inventors: John H. Barber, Wojciech Gutowski, Yongchang Zheng, Russell James MacDonald
  • Patent number: 11896750
    Abstract: A fluid treatment plant has a filter module including at least a first filter and a second filter connected in series and connectable to a supply of fluid. A pump is fluidly connected to the filter module and a controller with a fluid quality sensor is connected to detect a quality of the fluid between the first filter and the second filter. A filter module detector is connected to the controller configured to uniquely detect a filter module connected to the pump, and the controller is controls the pump responsively to a signal from the fluid quality sensor and the module detector. The controller is configured to continue pumping based on output of the quality sensor and/or based on output from the filter module detector.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: February 13, 2024
    Assignee: NxStage Medical, Inc.
    Inventors: Jeffrey H. Burbank, Dennis M. Treu, Goetz Friederichs, Brian C. Green, Christopher S. Mcdowell, James M. Brugger
  • Patent number: 11890401
    Abstract: Dialysis machines comprising a feed arrangement to supply a dialysis fluid to a dialyzer during dialysis treatment and a return arrangement to remove the dialysis fluid from the dialyzer during dialysis treatment and forward it to an exit; a feed recirculation circuit to allow a fluid of the feed arrangement to be re-circulated in a fluid loop path comprising, at least a portion of, the feed arrangement and the feed recirculation circuit and a return recirculation circuit to allow a fluid of the return arrangement to re-circulate in an auxiliary fluid loop path comprising, at least a portion of, the return arrangement and the return recirculation circuit. A controller configured to perform disinfection by re-circulating a disinfectant and/or a heated fluid through said fluid loop path and/or through said auxiliary fluid loop path.
    Type: Grant
    Filed: February 24, 2022
    Date of Patent: February 6, 2024
    Assignee: Gambro Lundia AB
    Inventors: Helena Jeppsson, Jan Sternby, Thomas Hertz, Olof Jansson, Sture Hobro, Evi Martinson