Patents by Inventor Philippe Laffay

Philippe Laffay 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: 12290619
    Abstract: The invention relates to a method for manufacturing a liquid acid concentrate for hemodialysis machines, with the following steps. In a preliminary step a water source (120), an acid source (130), an electrolyte tank (140) containing a mixture of electrolytes in exactly the quantity needed for the manufacture of the liquid acid concentrate, and a sodium chloride source (150) are connected to a mixing tank (110). During Step a), the quantity of water needed for the manufacture of the batch of liquid acid concentrate is introduced into the mixing tank (110). At Step b), the quantity of acid needed for manufacture the liquid acid concentrate is introduced into the mixing tank (110), the solution is stirred until a homogeneous solution is obtained. Step c) is to repeat Sub-steps c1) and c2) until the electrolyte mixture contained in the electrolyte tank is completely dissolved.
    Type: Grant
    Filed: April 25, 2024
    Date of Patent: May 6, 2025
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Thierry Eyrard, Philippe Laffay, Benoit Luaire
  • Patent number: 12186463
    Abstract: The present invention refers to a container comprising a connection portion allowing for an easy, efficient and more hygienic connection of the container to a fluid dosing unit of a blood treatment device. According to the present invention the fluid dosing unit comprises a valve that fluidically closes the fluid dosing unit if no container is connected to the fluid dosing unit and that opens the fluid dosing unit upon connection of a container to the fluid dosing unit. Thus, undesired spillages potentially arising upon disconnection of the container from the fluid dosing unit can be avoided.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: January 7, 2025
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Winfried Brehm, Philippe Laffay, Gerhard Wiesen
  • Patent number: 11986581
    Abstract: A water source, an acid source, an electrolyte tank containing a mixture of electrolytes in exactly the quantity needed for the manufacture of the liquid acid concentrate, and a sodium chloride source are connected to a mixing tank. A quantity of water needed for the manufacture of the batch of liquid acid concentrate is introduced into the mixing tank. A quantity of acid needed for manufacture of the liquid acid concentrate is introduced into the mixing tank, the solution is stirred until a homogeneous solution is obtained. Part of the solution contained in the mixing tank is transferred into the electrolyte tank, then the solution contained in the electrolyte tank is transferred into the mixing tank. A quantity of sodium chloride needed to manufacture the liquid acid concentrate is introduced into the mixing tank. The solution is stirred and recirculated until a homogeneous liquid acid concentrate is obtained.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: May 21, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Thierry Eyrard, Philippe Laffay, Benoit Luaire
  • Patent number: 11890444
    Abstract: The invention relates to a connector (1) constituted by: base provided with a tubular wall (13) closed by a bottom wall (11) provided with at least one through-opening (111); a membrane provided with a flexible wall (23) having a central opening, a tubing (22) placed in the opening of the flexible wall; sealing means for preventing a liquid from leaving the connector through the tubing. The base and the membrane are fixed to each other in a liquid-tight manner. The flexible wall allows axial displacement of the tubing so that it can be moved between a closed position, in which a liquid cannot leave the connector through the conduit of the tubing, and an open position, in which a liquid from can leave the connector through the tubing. Retaining means (121, 222a) maintain the tubing (22) closed with a force that can be overcome manually to open it.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: February 6, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Joanna Charre, Francois Dumont D'Ayot, Philippe Laffay
  • Patent number: 11141395
    Abstract: A precursor composition for the preparation of a dialysis fluid, the precursor composition comprising at least a glucose component, an acid component, and an amino acid component, wherein the amino acid component comprises Valine, Isoleucine and Leucine.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: October 12, 2021
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Benoit Luaire, Philippe Laffay, Charles Chazot, Patrik Deleaval
  • Patent number: 10918600
    Abstract: The present invention relates to a novel dry acid concentrate (DAC) for a dialysis liquid and to a dialysis liquid, which is made from said concentrate, and which may be used for purifying blood. The invention further relates to a method of making the dry acid concentrate as well as the dialysis liquid. It also relates to a container (10) comprising said acid concentrate, and which is—in certain embodiments—specially adapted to a dialysis unit.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: February 16, 2021
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Thierry Eyrard, Philippe Laffay, Benoit Luaire
  • Publication number: 20200352888
    Abstract: A precursor composition for the preparation of a dialysis fluid, the precursor composition comprising at least a glucose component, an acid component, and an amino acid component, wherein the amino acid component comprises Valine, Isoleucine and Leucine.
    Type: Application
    Filed: July 21, 2017
    Publication date: November 12, 2020
    Inventors: Benoit Luaire, Philippe Laffay, Charles Chazot, Patrik Deleaval
  • Patent number: 10631875
    Abstract: The invention relates to a haemostatic bracelet (1) comprising: —a clamp comprising two branches (11, 12) and a first strut (13), each branch (11, 12) being connected by one of its ends to the other branch by means of the first strut (13), —a compression element (24) placed, when the bracelet is ready for use, inside the space defined by the branches (11, 12) and the first strut (13) of the clamp or inside a projection of this space, the compression element (24) protruding in the direction of the opening between the ends of the branches (11, 12) of the clamp opposite to the first strut (13), —actuation elements (30, 40) fixed to the branches (11, 12) of the clamp so that the ends of the branches (11, 12) of the clamp opposite to the first strut (13) can be spread by moving the ends of the actuation elements towards each other.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: April 28, 2020
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Cyril Dody, François Dumont D'Ayot, Philippe Laffay, Jacques Volle
  • Patent number: 10449282
    Abstract: A combination includes a container having a connecting portion, and a fluid preparation device, in particular a dialysis machine. The fluid preparation device is configured for mounting and connecting the connecting portion of the container. The fluid preparation device includes at least one line in fluid communication with an interior of the container in the connected position of the container. The container is filled with a first medium, and includes a reservoir containing a second medium. The fluid preparation device includes a rod-shaped element for opening the reservoir so that the first medium and the second medium are mixed with each other.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: October 22, 2019
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Winfried Brehm, Philippe Laffay, Benoit Luaire
  • Patent number: 10245231
    Abstract: The present invention relates to a novel dry acid concentrate (DAC) for a dialysis liquid and to a dialysis liquid, which is made from said concentrate, and which may be used for purifying blood. The invention further relates to a method of making the dry acid concentrate as well as the dialysis liquid. It also relates to a container (10) comprising said acid concentrate, and which is—in certain embodiments—specially adapted to a dialysis unit.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: April 2, 2019
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Thierry Eyrard, Philippe Laffay, Benoit Luaire
  • Publication number: 20180303713
    Abstract: A container containing a concentrate for dialysis includes a pouch or cartridge containing a solid concentrate of constituents for the dialysis solution, the pouch or cartridge being closed by a connector having a filling channel extending completely through the connector, which is for filling the pouch or cartridge with the solid concentrate, means for introducing a solution-forming liquid into the pouch or cartridge and for extracting the solution obtained, these introduction and extraction means having at least one connecting portion for connecting them to a corresponding port of the dialysis machine. The filling channel is closed by a stopper which has a reservoir containing a second constituent or group of constituents for the dialysis solution, and means for producing an outlet opening in the reservoir contacting the inside of the reservoir with the side of the stopper located in the container.
    Type: Application
    Filed: June 18, 2018
    Publication date: October 25, 2018
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Thierry Eyrard, Bruno Faye, Philippe Laffay, Benoit Luaire
  • Patent number: 10076599
    Abstract: A dry peritoneal dialysis (PD) concentrate system may be used in connection with a PD cycler. The dry PD concentrate system includes a concentrate container with at least two concentrate compartments, and at least one of the compartments contains a dry PD concentrate component. At least one of the concentrate compartments has a medical fluid outlet, and at least one of the concentrate compartments has a diluent inlet.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: September 18, 2018
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Thierry Eyrard, Philippe Laffay, Benoit Luaire
  • Patent number: 10022299
    Abstract: A container containing a concentrate for dialysis includes a pouch or cartridge containing a solid concentrate of constituents for the dialysis solution, the pouch or cartridge being closed by a connector having a filling channel extending completely through the connector, which is for filling the pouch or cartridge with the solid concentrate, means for introducing a solution-forming liquid into the pouch or cartridge and for extracting the solution obtained, these introduction and extraction means having at least one connecting portion for connecting them to a corresponding port of the dialysis machine. The filling channel is closed by a stopper which has a reservoir containing a second constituent or group of constituents for the dialysis solution, and means for producing an outlet opening in the reservoir contacting the inside of the reservoir with the side of the stopper located in the container.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: July 17, 2018
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Thierry Eyrard, Bruno Faye, Philippe Laffay, Benoit Luaire
  • Patent number: 10022297
    Abstract: A container includes a dry concentrate designed such that the dry concentrate forms an acid liquid concentrate, or a part of an acid liquid concentrate, which is suitable for manufacturing a dialysis solution, on the dissolution of the dry concentrate in a liquid, preferably in water.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: July 17, 2018
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Peter Kloeffel, Gerhard Wiesen, Francois Dumont d'Ayot, Philippe Laffay, Benoit Luaire
  • Publication number: 20180070957
    Abstract: The invention relates to a haemostatic bracelet (1) comprising: —a clamp comprising two branches (11, 12) and a first strut (13), each branch (11, 12) being connected by one of its ends to the other branch by means of the first strut (13), —a compression element (24) placed, when the bracelet is ready for use, inside the space defined by the branches (11, 12) and the first strut (13) of the clamp or inside a projection of this space, the compression element (24) protruding in the direction of the opening between the ends of the branches (11, 12) of the clamp opposite to the first strut (13), —actuation elements (30, 40) fixed to the branches (11, 12) of the clamp so that the ends of the branches (11, 12) of the clamp opposite to the first strut (13) can be spread by moving the ends of the actuation elements towards each other.
    Type: Application
    Filed: April 1, 2016
    Publication date: March 15, 2018
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Cyril Dody, François Dumont D'Ayot, Philippe Laffay, Jacques Volle
  • Patent number: 9855378
    Abstract: Method of dissolving/mixing of a concentrate in/with a fluid in a multi-chamber bag and a method for the production of a medical fluid, in particular a dialysis fluid, in a multi-chamber bag. Moreover, the multi-chamber bag itself is disclosed. In all embodiments, at least two different concentrates can be included separately in powder form, liquid form or semi-liquid slurry form for dissolution in a fluid in the multi-chamber bag. In addition, the use of the multi-chamber bag in haemodialysis or peritoneal dialysis or a haemodialysis or peritoneal dialysis device, in particular as a container for a dialysis fluid in a haemodialysis or peritoneal dialysis device, is described.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: January 2, 2018
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Matthias Brandl, Philippe Laffay, Michael Herrenbauer, Thomas Fichert, Franz Kugelmann, Joern Hoermann
  • Patent number: 9527627
    Abstract: A container for a solid product for dialysis has a connector (200) for connection to a dialysis machine, with a filling channel (202) that crosses it from one end to the other for filling the receptacle with solid product; a fluid line (211, 212, 213) for introducing a solution-making liquid, extending between a first connecting portion (211) that opens to the outside and an orifice (213) that opens to the inside; and a fluid line (221, 222, 223, 224) for extracting the obtained solution, extending between a second connecting portion (221) that opens to the outside and an orifice (224) that opens to the inside. The filling channel (202) is open at both ends and the two fluid lines (211, 212, 213; 221, 222, 223, 224) are fluid-tight between the orifice (213, 224) that opens into the receptacle and the first or second connecting portion (221, 221), respectively.
    Type: Grant
    Filed: May 11, 2012
    Date of Patent: December 27, 2016
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Thierry Eyrard, Philippe Laffay
  • Publication number: 20160213832
    Abstract: A dry peritoneal dialysis (PD) concentrate system may be used in connection with a PD cycler. The dry PD concentrate system includes a concentrate container with at least two concentrate compartments, and at least one of the compartments contains a dry PD concentrate component. At least one of the concentrate compartments has a medical fluid outlet, and at least one of the concentrate compartments has a diluent inlet.
    Type: Application
    Filed: April 5, 2016
    Publication date: July 28, 2016
    Inventors: Thierry Eyrard, Philippe Laffay, Benoit Luaire
  • Patent number: 9155824
    Abstract: A concentrate container for preparing a medical fluid, preferably for preparing a dialysis solution, is provided, the concentrate container including at least two concentrate compartments, wherein at least one of the concentrate compartments has a medical fluid outlet, and at least one of the concentrate compartments has a diluent inlet. Further, systems for preparing a medical fluid and a method for preparing a medical fluid are described.
    Type: Grant
    Filed: February 3, 2012
    Date of Patent: October 13, 2015
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Thierry Eyrard, Philippe Laffay, Benoît Luaire
  • Patent number: 9145995
    Abstract: Adapter (3) for connecting a receptacle connector to a connection socket of a dialysis machine, each provided with two fluid lines, whose ends are concentric on the connector and non-concentric and distant from each other on the socket. The adapter (3) has concentric first (301) and second (302) adapter ribs, the first forming a circular chamber open towards the outside, in the bottom of which a first orifice is produced, while the second forms an annular chamber open towards the outside, in the bottom of which a second orifice is produced. The adapter also has first and second connection channels (306, 307) isolated from each other, in which the first and second orifices coming from the first and second annular chambers open out. Each channel (306, 307) includes a connecting piece (308, 309) consisting of a circular tube, for introduction into the reception elements of the coupling socket (2).
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: September 29, 2015
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND
    Inventors: Paul Gastauer, Philippe Laffay, Bruno Faye