Patents by Inventor Manfred Weis

Manfred Weis 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: 9603987
    Abstract: The present invention relates to a device and method for conveying fluids into the treatment unit of a medical treatment apparatus. The device and method according to the present invention are based on the fact that the fluid with which the treatment unit is supplied, circulates in a fluid circuit including the treatment unit. To balance fresh and used fluid fed to the treatment unit or conveyed from the treatment unit, a balancing unit with a balancing chamber is used, which can be incorporated into the fluid circuit including the treatment unit. It is thus possible to supply the fluid circuit continuously with fresh fluid or to carry away used fluid continuously from the fluid circuit. The supply and discharge of fresh and used fluid can take place at a different flow rate from the flow rate at which the fluid circulates in the fluid circuit via the treatment unit.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: March 28, 2017
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Matthias Brandl, Manfred Weis, Volker Nier, Gerhard Mager, Michael Herrenbauer
  • Patent number: 9421328
    Abstract: The present invention relates to a clot trap that comprises a disc-shaped screen surface for collecting clots in a fluid flowing through the screen surface. It further relates to an external blood cassette and a blood circuit, as well as a treatment apparatus.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: August 23, 2016
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Christoph Brueckner, Martin Lauer, Manfred Weis
  • Patent number: 9101709
    Abstract: A dialysis fluid cassette that includes a base and a flexible membrane attached to the base. The flexible membrane and the base cooperate to at least partially define a venting chamber and a fluid channel fluidly connected to the venting chamber.
    Type: Grant
    Filed: January 4, 2013
    Date of Patent: August 11, 2015
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Josef Beden, Uwe Hahmann, Martin Herklotz, Martin Lauer, Joachim Manke, Peter Scheunert, Manfred Weis
  • Publication number: 20150059894
    Abstract: The present invention relates to a method for removing blood from an extracorporeal blood circuit and/or a functional device, each connectable or connected with a blood treatment apparatus for the purpose of blood treatment of a patient. The blood treatment apparatus of the method comprises or is connected with at least one extracorporeal blood circuit with a line having interior portions, the extracorporeal blood circuit comprising at least one arterial line section and at least one venous line section, wherein a first section of the arterial line section is configured to be connected with a second section of the venous line section, and further comprises at least one blood pump for conveying blood within the line interior portions. The method includes the step of operating the blood pump in a second conveying direction which is opposite to a first customary conveying direction. It further relates to corresponding apparatuses.
    Type: Application
    Filed: November 18, 2014
    Publication date: March 5, 2015
    Inventors: Soeren GRONAU, Juergen Haecker, Ralf Mueller, Manfred Weis, Stefan Kreber, Martin Thys
  • Patent number: 8915876
    Abstract: The present invention relates to a method for removing blood from an extracorporeal blood circuit and/or a functional device, each connectable or connected with a blood treatment apparatus for the purpose of blood treatment of a patient. The blood treatment apparatus of the method comprises or is connected with at least one extracorporeal blood circuit with a line having interior portions, the extracorporeal blood circuit comprising at least one arterial line section and at least one venous line section, wherein a first section of the arterial line section is configured to be connected with a second section of the venous line section, and further comprises at least one blood pump for conveying blood within the line interior portions. The method includes the step of operating the blood pump in a second conveying direction which is opposite to a first customary conveying direction. It further relates to corresponding apparatuses.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: December 23, 2014
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Soeren Gronau, Juergen Haecker, Ralf Mueller, Manfred Weis, Stefan Kreber, Martin Thys
  • Patent number: 8888755
    Abstract: The present invention relates to a disposable bag which comprises a multilayer film for accommodating a fluid, and a device which comprises a support holder for the disposable bag according to the invention in which the disposable bag is arranged. The present invention also relates to a process for the production of the disposable bag.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: November 18, 2014
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Michael Herrenbauer, Manfred Weis, Franz Kugelmann
  • Patent number: 8776572
    Abstract: A necking machine (1) having a plurality of processing stations on a rotating tool carrier (7). The motion of the tool carrier (7) with respect to the work pieces is carried out by a crankshaft (25). This is carried out by a non-constant gear. The gear includes two non-round gearwheels (21, 23) that improve a rotational-speed profile of the crankshaft (25) and thus a velocity profile, in particular, in an area of the dead center.
    Type: Grant
    Filed: August 23, 2011
    Date of Patent: July 15, 2014
    Assignee: Mall + Herlan Schweiz AG
    Inventor: Manfred Weis
  • Publication number: 20140034557
    Abstract: An apparatus for treating a medical fluid is provided which includes a treatment machine having a coupling surface, with a cassette made of a hard part having liquid-conducting passages which are covered by a flexible film being able to be coupled to the coupling surface of the treatment machine. A corresponding medical cassette is also provided. An air-free coupling of the flexible film of the cassette to the treatment machine is ensured in that air can be sucked out areally along a plane between the flexible film and the coupling surface during the coupling process and/or with a coupled cassette. A method for coupling the cassette and a method for checking the leaktightness of the cassette via the vacuum control of the air suction is also provided.
    Type: Application
    Filed: June 24, 2013
    Publication date: February 6, 2014
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Götz Günther, Jürgen Häcker, Markus Köhler, Martin Lauer, Ralf Müller, Hans-Peter Schneider, Tobias Weber, Manfred Weis
  • Patent number: 8470171
    Abstract: An apparatus for treating a medical liquid is provided which includes a treatment machine having a coupling surface, with a cassette made of a hard part having liquid-conducting passages which are covered by a flexible film being able to be coupled to the coupling surface of the treatment machine. A corresponding medical cassette is also provided. An air-free coupling of the flexible film of the cassette to the treatment machine is ensured in that air can be sucked out areally along a plane between the flexible film and the coupling surface during the coupling process and/or with a coupled cassette. A method for coupling the cassette and a method for checking the leaktightness of the cassette via the vacuum control of the air suction is also provided.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: June 25, 2013
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Goetz Guenther, Juergen Haecker, Markus Koehler, Martin Lauer, Ralf Mueller, Hans-Peter Schneider, Tobias Weber, Manfred Weis
  • Patent number: 8435408
    Abstract: The invention relates to an apparatus for the treatment of a medical liquid comprising a liquid treatment machine and a cassette insertable therein substantially made of a rigid base body of the cassette with fitted chambers and passages and a foil covering them.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: May 7, 2013
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Josef Beden, Uwe Hahmann, Martin Herklotz, Martin Lauer, Joachim Manke, Peter Scheunert, Manfred Weis, Alexander Bongers
  • Publication number: 20130087210
    Abstract: The present invention relates to a device and method for conveying fluids into the treatment unit of a medical treatment apparatus. The device and method according to the present invention are based on the fact that the fluid with which the treatment unit is supplied, circulates in a fluid circuit including the treatment unit. To balance fresh and used fluid fed to the treatment unit or conveyed from the treatment unit, a balancing unit with a balancing chamber is used, which can be incorporated into the fluid circuit including the treatment unit. It is thus possible to supply the fluid circuit continuously with fresh fluid or to carry away used fluid continuously from the fluid circuit. The supply and discharge of fresh and used fluid can take place at a different flow rate from the flow rate at which the fluid circulates in the fluid circuit via the treatment unit.
    Type: Application
    Filed: June 14, 2011
    Publication date: April 11, 2013
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Matthias Brandl, Manfred Weis, Volker Nier, Gerhard Mager, Michael Herrenbauer
  • Patent number: 8377293
    Abstract: A dialysis fluid cassette that includes a base and a flexible membrane attached to the base. The flexible membrane and the base cooperate to at least partially define a venting chamber and a fluid channel fluidly connected to the venting chamber.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: February 19, 2013
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Josef Beden, Uwe Hahmann, Martin Herklotz, Martin Lauer, Joachim Manke, Peter Scheunert, Manfred Weis
  • Publication number: 20130030346
    Abstract: The present invention relates to a method for removing blood from an extracorporeal blood circuit and/or a functional device, each connectable or connected with a blood treatment apparatus for the purpose of blood treatment of a patient. The blood treatment apparatus of the method comprises or is connected with at least one extracorporeal blood circuit with a line having interior portions, the extracorporeal blood circuit comprising at least one arterial line section and at least one venous line section, wherein a first section of the arterial line section is configured to be connected with a second section of the venous line section, and further comprises at least one blood pump for conveying blood within the line interior portions. The method includes the step of operating the blood pump in a second conveying direction which is opposite to a first customary conveying direction. It further relates to corresponding apparatuses.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 31, 2013
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Soeren Gronau, Juergen Haecker, Ralf Mueller, Manfred Weis, Stefan Kreber, Martin Thys
  • Patent number: 8308856
    Abstract: The present invention relates to an air separator for an extracorporeal blood circuit for separating out air from a fluid flowing through the air separator, comprising an air separation chamber having at least one inflow passage and at least one outflow passage. It further relates to an external functional apparatus, a blood circuit, and a treatment apparatus.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: November 13, 2012
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Christoph Brueckner, Martin Lauer, Manfred Weis
  • Publication number: 20120223016
    Abstract: The present invention relates to an apparatus for dialysis treatment which has device(s) for balancing fresh and used dialysis fluid. The present invention also relates to a method of balancing fresh and used dialysis fluid. The apparatus and method according to the present invention for balancing fresh and used dialysis fluid are characterized in that the individual balancing chambers of the balancing system receive both fresh dialysis fluid and used dialysis fluid, the functions of the balancing chambers being alternately interchanged. In this way, exact balancing can be achieved even when the volumes of the individual chambers differ from one another. Over the period of the treatment as a whole, the differences between the volumes balance each other out due to the cyclic interchange of the chambers.
    Type: Application
    Filed: September 23, 2010
    Publication date: September 6, 2012
    Inventors: Manfred Weis, Martin Lauer, Stefan Kreber
  • Publication number: 20120181225
    Abstract: The invention relates to an apparatus for the treatment of a medical liquid comprising a liquid treatment machine and a cassette insertable therein substantially made of a rigid base body of the cassette with fitted chambers and passages and a foil covering them.
    Type: Application
    Filed: February 21, 2012
    Publication date: July 19, 2012
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventor: Manfred Weis
  • Publication number: 20120156097
    Abstract: The invention relates to an apparatus for the treatment of a medical liquid comprising a liquid treatment machine and a cassette insertable therein substantially made of a rigid base body of the cassette with fitted chambers and passages and a foil covering them.
    Type: Application
    Filed: February 21, 2012
    Publication date: June 21, 2012
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Josef Beden, Uwe Hahmann, Martin Herklotz, Martin Lauer, Joachim Manke, Peter Scheunert, Manfred Weis, Alexander Bongers
  • Publication number: 20120080437
    Abstract: Disclosed is a sealing device for sealing at least one first volume of an arrangement for the treatment of at least one medical fluid against at least one second volume, wherein the first volume is provided for receiving at least one external functional device. The sealing device includes at least one first connection device whereby the sealing device may be connected to the arrangement. In addition an arrangement and a method are disclosed.
    Type: Application
    Filed: March 10, 2010
    Publication date: April 5, 2012
    Inventors: Goetz Guenther, Markus Koehler, Uwe Lapp, Martin Lauer, Ralf Mueller, Peter Scheunert, Wolfgang Schulz, Udo Waeber, Manfred Weis
  • Patent number: 8142653
    Abstract: The invention relates to an apparatus for the treatment of a medical liquid comprising a liquid treatment machine and a cassette insertable therein substantially made of a rigid base body of the cassette with fitted chambers and passages and a foil covering them.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: March 27, 2012
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Josef Beden, Uwe Hahmann, Martin Herklotz, Martin Lauer, Joachim Manke, Peter Scheunert, Manfred Weis, Alexander Bongers
  • Publication number: 20120060578
    Abstract: A necking machine (1) having a plurality of processing stations on a rotating tool carrier (7). The motion of the tool carrier (7) with respect to the work pieces is carried out by a crankshaft (25). This is carried out by a non-constant gear. The gear includes two non-round gearwheels (21, 23) that improve a rotational-speed profile of the crankshaft (25) and thus a velocity profile, in particular, in an area of the dead center.
    Type: Application
    Filed: August 23, 2011
    Publication date: March 15, 2012
    Applicant: MALL + HERLAN SCHWEIZ AG
    Inventor: Manfred Weis