Patents Examined by Krishnan S Menon
  • Patent number: 11324868
    Abstract: The invention relates to an apparatus for extracorporeal blood treatment, comprising a blood treatment unit 1 that comprises at least one compartment 3. The invention further relates to an apparatus 15A, 15B for collecting blood clots for a blood line 5, 7 for supplying blood to or removing blood from a blood treatment unit 1 of an extracorporeal blood treatment apparatus, and to a method for determining a hemodynamic parameter during extracorporeal blood treatment using an extracorporeal blood treatment apparatus. In order to determine the hemodynamic parameter, the conveying direction of the blood pump 10 is reversed from a “normal” blood flow to a “reversed” blood flow. It has been found in practice that, in the event of a reversal in the conveying direction of the blood pump in order to carry out a measurement for determining a hemodynamic parameter, there is a risk of blood clots reaching the patients, although the dialyser traps blood clots.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: May 10, 2022
    Inventor: Andreas Maierhofer
  • Patent number: 11319221
    Abstract: An exemplary power system utilizes turbines configured within a water intake conduit to the desalination processor to produce power for the desalination processor. Water intakes are configured to provide a natural flow of water to the desalination processor though hydrostatic pressure. One or more turbines coupled with the water intake conduits are driven and produce power for the system. The desalination processor incorporates Graphene filters to and may include a structured water system to increase the H3O2 concentration of the water prior to Graphene filters. Discharge water may be pumped back into the body of water but be separated from the intakes. A secondary power source, such as a renewable power source, may be used to produce supplemental power for the system. Power produced may be provided to a secondary outlet, such as a power grid, all above and/or underground.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: May 3, 2022
    Inventor: John Walter Jennings
  • Patent number: 11318421
    Abstract: Composite membrane tubing includes a porous scaffold support combined with polyether block amide copolymer. The composite membrane tubing has overlapping “fusion areas” that are an artifact of the manufacturing process. The methods of manufacturing above-mentioned composite membrane tubing have also been addressed. The composite membrane tubing can be reinforced with a structural mesh to further provide rigidity and strength. Composite membrane tubing or generally extruded tubing can be integrated into a multi-tube module for various applications.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: May 3, 2022
    Inventors: Bamdad Bahar, Taoli Gu, David McAndrews, Abhishek Bandlore
  • Patent number: 11311843
    Abstract: Provided herein are compounds, compositions, and methods for the treatment of wastewater. Provided herein are compounds, composites, compositions, and methods for purifying a medium such as wastewater, saline for desalination, and petroleum wastes.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: April 26, 2022
    Inventors: Kamel Abdelmoniem Mohamed Eid, Ahmed Mohamed Shehata Soliman, Ahmed Abdelfattah Ahmed Mohamed Elzatahry, Aboubakr Moustafa Abdullah
  • Patent number: 11305239
    Abstract: Disclosed is a permeable membrane support having an attachable and detachable permeable membrane, the permeable membrane support comprising: a lower support; an upper support partially accommodated into the lower support; and a permeable membrane disposed between the lower support and the upper support. When the upper support and the lower support are engaged with each other in a snap-fit manner, the permeable membrane is sandwiched between a bottom opening of a cylindrical lower member of the upper support and a top face of a bottom support portion of the lower support.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: April 19, 2022
    Assignee: ST1 CO., LTD.
    Inventors: Young Hun Jeong, Yong Jun Yoon
  • Patent number: 11305041
    Abstract: Hollow fiber membranes in an oxygenator for an extracorporeal blood circulator are coated with an antithrombotic polymeric material. The porous hollow fiber membranes for gas exchange have outer surfaces, inner surfaces forming lumens, opening portions through which the outer surfaces communicate with the inner surfaces in a housing. A blood flow path is outside of the hollow fiber membrane bundle in the housing, between a blood inlet port and a blood outlet port. The coating is obtained by filling the blood flow path with a colloidal solution containing an antithrombotic polymeric compound, and moving the colloid solution between the blood inlet port and the blood outlet port for a time that coats a predetermined amount of antithrombotic polymeric compound on the outer surfaces of the hollow fiber membranes. Other surfaces within the oxygenator contacting the blood flow likewise receive the coating.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: April 19, 2022
    Assignee: Terumo Kabushiki Kaisha
    Inventors: Takayuki Kido, Takao Anzai
  • Patent number: 11305998
    Abstract: Systems and methods for the gas-phase production of carbon nanotube (CNT)-nanoparticle (NP) hybrid materials in a flow-through pyrolytic reactor specially adapted to integrate nanoparticles (NP) into CNT material at the nanoscale level, and the second generation CNT-NP hybrid materials produced thereby.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: April 19, 2022
    Assignees: University of Cincinnati, North Carolina Agricultural & Technical State Univ
    Inventors: Mark Schulz, Guangfeng Hou, Vianessa Ng
  • Patent number: 11298448
    Abstract: A filter unit for blood and blood derivatives comprises a body defined by two injection-moulded half-shells of thermoplastic polymer material, there being present between said half-shells a cavity containing a filtering element having two opposing flat faces, an inlet opening and an outlet opening made on the opposing outer surfaces of said body communicating with said cavity. Each of said half-shells comprises a projecting perimetral flange, the flanges of the overlapping half-shells being welded together to form a flange of the body of the filter unit and connect the two half-shells together, the filtering element being wholly contained within the cavity of such body and pressed by shelves projecting into such cavity from each half-shell in the vicinity of its perimetral border and on the two opposing faces, said shelves retaining said filtering element in a stable position within cavity, said thermoplastic polymer material being yielding and semi-rigid.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: April 12, 2022
    Assignee: GVS S.P.A.
    Inventors: Massimo Scagliarini, Luca Querze′, Filippo Trascinelli
  • Patent number: 11298658
    Abstract: Equipment, systems, processes and techniques for conducting processing of solutions are described. The techniques can be applied to provide diluted solution (i.e. purified solvent), concentrate solution or each. A variety of specific equipment, example systems and processes are depicted and described.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: April 12, 2022
    Assignee: Solution Dyanmics, LLC
    Inventor: Calvin Wohlert
  • Patent number: 11291953
    Abstract: A system for separating a suspension of biological cells is disclosed comprising a single-use fluid circuit and a durable hardware component. The fluid circuit comprises a separator having a housing that includes an inlet for introducing the suspension of biological cells into the gap, a first outlet in communication with the gap for flowing a first type of cells from the separator, and a second outlet in communication with the second side of the filter membrane for flowing a second type of cells from the separator.
    Type: Grant
    Filed: May 8, 2020
    Date of Patent: April 5, 2022
    Assignee: Fenwal, Inc.
    Inventors: Richard I. Brown, Benjamin E. Kusters, Kyungyoon Min
  • Patent number: 11292732
    Abstract: Disclosed is a water purifier. The water purifier includes a water quality sensor configured to measure quality of water that is suppled from a water supply source, a first filter configured to filter by a first method, a second filter configured to filter by a second method, a flow path shifting valve configured to selectively supply water that is supplied from the water supply source to the first filter or the second filter, and a processor configured to control the flow path shifting valve based on a water quality value that is measured by the sensor.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: April 5, 2022
    Inventors: Jongho Lee, Kookjeong Seo, Hyesoon Yang, Jungsoo Lim
  • Patent number: 11285249
    Abstract: Various sorbent cartridges for use in sorbent dialysis are constructed to allow even dialysate stream flow through the sorbent cartridges, at relatively high flow rates, with sufficient engagement with sorbent media within the sorbent cartridges and without creating drill-through problems. The sorbent cartridges may have various columns and/or compartments for housing the sorbent media. The sorbent cartridges may have various horizontally oriented restrictors, with particularly sized holes, and with various vertically oriented side walls, that both form the various columns and/or compartments and that direct and control the dialysate stream through the sorbent cartridges in an even manner.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: March 29, 2022
    Inventor: Norman J. Barta
  • Patent number: 11285443
    Abstract: The present disclosure provides a porous polymeric membrane that is coated with a cross-linked polymerized monomer. The coating on the porous polymeric membrane has a charge when it is immersed in an organic liquid. The coated porous polymeric membrane, a filter utilizing the membrane, and a method for treating an organic liquid used for photoresist with the coated porous polymeric membrane to remove metal contaminants from the organic liquid are disclosed.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: March 29, 2022
    Assignee: ENTEGRIS, INC.
    Inventors: Jad Ali Jaber, Saksatha Ly, James Hamzik, Testu Kohyama
  • Patent number: 11273436
    Abstract: A polysulfone membrane is modified so that monomers are grafted onto the surface of the membrane. The polysulfone membranes can be grafted by contacting the membrane with a grafting solution and exposing the membrane to electromagnetic radiation, typically within the ultraviolet portion of the spectrum. The monomers that are grafted are typically anionic or cationic. The grafted membranes can be used for filtering impurities, such as positively and negatively charged particles, from a liquid. Anionic membranes provide improved filtration of negatively charged impurities, while cationic membranes provide improved filtration of positively charged impurities.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: March 15, 2022
    Assignee: ENTEGRIS, INC.
    Inventors: Jad Ali Jaber, Alketa Gjoka, Saksatha Ly
  • Patent number: 11273410
    Abstract: An extracted material for forward osmosis is provided. The extracted material includes a first ionic compound, a second ionic compound and a third ionic compound, which are represented by formula {K[A+(R1)(R2)(R3)]p}(X?)c(Y?)d. X? is the same as Y? in the first ionic compound. X? is the same as Y? in the second ionic compound. X? in the first ionic compound is different from X? in the second ionic compound. X? differs from Y? in the third ionic compound. X? in the third ionic compound is the same as X? in the first ionic compound or X? in the second ionic compound. Y? in the third ionic compound is the same as Y? in the first ionic compound or Y? in the second ionic compound. A method for preparing an extracted material and a forward-osmosis water desalination system using the same are also provided.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: March 15, 2022
    Inventors: Yi-Chun Chen, Po-I Liu, Chia-Hua Ho, Yeu-Ding Chen, David Chiuni Wang, Ren-Yang Horng, Kai-Chi Chen
  • Patent number: 11260347
    Abstract: This invention describes a method and a device for efficient isolation of extracellular vesicles from animal and human biological fluids, as well as from culture fluid using equipment of standard diagnostic laboratories, that is, without the use of ultracentrifugation. These method and device can be applied for the diagnosis of various human diseases, as well as for therapeutic purposes, if the purified vesicles are used as an agent for drug delivery to the cells of the body. The device for the purification of extracellular vesicles contains at least two membrane filters: the first filter containing a membrane with pore sizes in the range from 400 to 600 nm, connected to the second filter containing a membrane with pores in the range from 95 to 200 nm. At the same time, the membranes of these filters are made of materials that practically do not bind biological polymers.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: March 1, 2022
    Inventors: Varlam Borisovich Keshelava, Marina Yurievna Zemskova, Konstantin Sergeevich Sorokin
  • Patent number: 11260154
    Abstract: Dialysis machines comprising a feed arrangement (170) to supply a dialysis fluid to a dialyzer (150) during dialysis treatment and a return arrangement (171) to remove the dialysis fluid from the dialyzer during dialysis treatment and forward it to an exit (129); a feed recirculation circuit (172) 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 (173) 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 (160) 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: October 11, 2017
    Date of Patent: March 1, 2022
    Assignee: Gambro Lundia AB
    Inventors: Helena Jeppsson, Jan Sternby, Thomas Hertz, Olof Jansson, Sture Hobro, Evi Martinson
  • Patent number: 11253819
    Abstract: System, devices, and method for the production of thin film composite hollow fiber membranes on a hollow fiber support structure. The system includes a comb and roller device, or comb and dual roller device, which can be used to define a submerged travel path in a first solution bath for a hollow fiber. The combs and rollers control the amount of time the hollow fiber spends in the first solution. The first solution contains a first monomer, and the hollow fiber is impregnated with the first monomer. The amount of impregnation depends on the time spent in the first solution. Subsequent immersion in a second solution containing a second monomer results in the formation of a thin film composite hollow fiber membrane.
    Type: Grant
    Filed: May 14, 2020
    Date of Patent: February 22, 2022
    Assignee: Saudi Arabian Oil Company
    Inventor: Seung-Hak Choi
  • Patent number: 11235284
    Abstract: This document describes systems and methods for treating and recovering water from feed solutions using a membrane module that has a plurality of hollow fiber membranes encapsulated in a collection chamber and an expansion chamber that is connected to the outlet of the membrane module.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: February 1, 2022
    Inventor: James Selvaraj Antony Prince
  • Patent number: 11236125
    Abstract: The present invention refers to new species of an ion exchange adsorber which is suitable for the separation of host cell proteins (HCPs), antibody fragments and low molecular weight substances from solutions containing antibodies. The invention especially refers to a process for purifying biological samples by separating biomolecules of interest and impurities, comprising steps of contacting a sample with said chromatography media consisting of fibers, said fibers having imparted thereon functionality enabling ion exchange chromatography and/or hydrophobic interaction.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: February 1, 2022
    Assignee: EMD Millipore Corporation
    Inventors: Matthew T. Stone, John P. Amara