Patents by Inventor Malte Gross

Malte Gross 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: 10155077
    Abstract: A dialysis machine has at least one filter for the filtration of dialysis liquid and a device for determining calcification of the dialysis machine. The device has one or more sensors configured and arranged to detect either downstream, or upstream and downstream, of the at least one filter an ion concentration or a parameter representative of the ion concentration or of its change of the dialysis liquid, of a solution serving the decalcification or of another measuring solution. The device for determining the calcification of the dialysis machine has an evaluation or calcification unit configured to determine the calcification of the dialysis machine based on the ion concentration or parameter value detected by the sensor or sensors.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: December 18, 2018
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Andreas Maierhofer, Alfred Gagel, Malte Gross, Michael Koch
  • Patent number: 9610395
    Abstract: The invention relates to a device for reversing the blood flow for an extracorporeal blood treatment device, comprising an extracorporeal blood circuit (I), which includes an arterial blood line (108A) leading from a patient to a blood treatment unit (204) and a venous blood line (106A) leading from the blood treatment unit to the patient. Furthermore, the invention relates to an extracorporeal blood treatment device with a device for reversing the blood flow, and to a method for determining the reversal of the blood flow during an extracorporeal blood treatment. The device for reversing the blood flow for an extracorporeal blood treatment device according to the invention comprises two valve bodies (102, 104) which are rotated relative to one another for reversing the blood flow.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: April 4, 2017
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Andreas Maierhofer, Malte Gross
  • Patent number: 9295394
    Abstract: A method and a device for recognition of paravasal bleeding upon a supplying of blood to a vascular access via a line and/or upon the removal of blood from a vascular access via a line is provided. A device for extracorporeal blood treatment comprising a device for recognition of paravasal bleeding is also provided. The method and the device are based on the change of arterial pressure in the arterial branch or the venous pressure in the venous branch of the extra-corporeal circuit being registered during the extracorporeal blood treatment. One aspect of the method and the device is that pressure changes that come from a pressure level exhibiting a large difference from a reference value are more strongly considered than those that come from a pressure level that exhibits only a minor difference from the reference value.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: March 29, 2016
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Pascal Kopperschmidt, Malte Gross, Reiner Spickermann
  • Patent number: 9215985
    Abstract: A method of monitoring a treatment of a patient, preferably for monitoring hemodialysis, hemodiafiltration and/or peritoneal dialysis, that includes the steps of irradiating a sample of a dialysis liquid used in the treatment with irradiation light of at least a first irradiation wavelength, detecting light emitted by the irradiated sample in at least a first detection wavelength, the detection wavelength being different from the first irradiation wavelength, and determining the presence and/or concentration of at least one analyte in the sample on the basis of the detected light.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: December 22, 2015
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Malte Gross, Pascal Kopperschmidt, Andreas Maierhofer, Alfred Gagel
  • Publication number: 20150136702
    Abstract: A dialysis machine has at least one filter for the filtration of dialysis liquid and a device for determining calcification of the dialysis machine. The device has one or more sensors configured and arranged to detect either downstream, or upstream and downstream, of the at least one filter an ion concentration or a parameter representative of the ion concentration or of its change of the dialysis liquid, of a solution serving the decalcification or of another measuring solution. The device doe determining the calcification of the dialysis machine has an evaluation or calcification unit configured to determine the calcification of the dialysis machine based on the ion concentration or parameter value detected by the sensor or sensors. For the Examiner's convenience, a clean text version of the replacement abstract (117 words) is presented below: A dialysis machine has at least one filter for the filtration of dialysis liquid and a device for determining calcification of the dialysis machine.
    Type: Application
    Filed: November 17, 2014
    Publication date: May 21, 2015
    Inventors: Andreas MAIERHOFER, Alfred GAGEL, Malte GROSS, Michael KOCH
  • Publication number: 20140291565
    Abstract: The invention relates to a device for reversing the blood flow for an extracorporeal blood treatment device, comprising an extracorporeal blood circuit (I), which includes an arterial blood line (108A) leading from a patient to a blood treatment unit (204) and a venous blood line (106A) leading from the blood treatment unit to the patient. Furthermore, the invention relates to an extracorporeal blood treatment device with a device for reversing the blood flow, and to a method for determining the reversal of the blood flow during an extracorporeal blood treatment. The device for reversing the blood flow for an extracorporeal blood treatment device according to the invention comprises two valve bodies (102, 104) which are rotated relative to one another for reversing the blood flow.
    Type: Application
    Filed: June 17, 2014
    Publication date: October 2, 2014
    Inventors: Andreas Maierhofer, Malte Gross
  • Patent number: 8784353
    Abstract: A device for reversing the blood flow for an extracorporeal blood treatment device, which has an extracorporeal blood circuit, includes an arterial blood line leading from a patient to a blood treatment unit and a venous blood line leading from the blood treatment unit to the patient. Furthermore, an extracorporeal blood treatment device includes a device for reversing the blood flow, and a method includes determining the reversal of the blood flow during an extracorporeal blood treatment. The device for reversing the blood flow for an extracorporeal blood treatment device includes two valve bodies which are rotated relative to one another for reversing the blood flow. The device for reversing the blood flow includes a communication device for receiving an electromagnetic high-frequency field from a read unit of the extracorporeal blood treatment device and for generating at least one identifier characterizing the position of the valve bodies which can be read by the read device.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: July 22, 2014
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Andreas Maierhofer, Malte Gross
  • Patent number: 8764987
    Abstract: An apparatus and a method for the determination and regulation of the concentration of at least one dissolved substance in a fluid circuit, in which the fluid circuit includes at least two partial circuits separated by a filter in a semi-permeable manner, includes a detection unit for determining a concentration difference of at least one first dissolved substance, a determination unit for determining the influence of at least one second dissolved substance which is not identical to the at least one first dissolved substance, and a regulation unit for regulating the concentration of the at least one dissolved substance in the fluid circuit.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: July 1, 2014
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Malte Gross, Andreas Maierhofer
  • Publication number: 20140098359
    Abstract: The present invention pertains to a method for monitoring a treatment of a patient, preferably for monitoring hemodialysis, hemodiafiltration and/or peritoneal dialysis, the method comprising the steps of irradiating a sample of a dialysis liquid used in the treatment with irradiation light of at least a first irradiation wavelength, detecting light emitted by the irradiated sample in at least a first detection wavelength, the detection wavelength being different from the first irradiation wavelength, and determining the presence and/or concentration of at least one analyte in the sample on the basis of the detected light.
    Type: Application
    Filed: April 10, 2012
    Publication date: April 10, 2014
    Applicant: Fresenius Medical Care Deutschland GmbH
    Inventors: Malte Gross, Pascal Kopperschmidt, Andreas Malerhofer, Alfred Gagel
  • Patent number: 8465641
    Abstract: A dialysis liquid circuit with conduits for conducting dialysis liquid and elements for detecting air in the dialysis liquid. The elements includes at least one gas sensor traversed continuously by the dialysis liquid, which is configured such that it measures at least one property of the dialysis liquid which depends on the presence of air bubbles in the dialysis liquid, and which is arranged downstream of a region to be monitored of the dialysis liquid circuit. During operation of the dialysis liquid circuit a negative pressure exists with respect to atmospheric pressure, and the elements includes an evaluation unit which is connected with the gas sensor and which is configured such that the property measured by means of the gas sensor is evaluated with regard to the presence of air bubbles in the dialysis liquid.
    Type: Grant
    Filed: July 30, 2008
    Date of Patent: June 18, 2013
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Andreas Maierhofer, Alfred Gagel, Malte Gross
  • Patent number: 8460552
    Abstract: A method and device that identify impairments of the blood flow in an extra-corporeal blood circuit during extracorporeal treatment of the blood using an extracorporeal haemodialysis device, where the phase angle of at least one harmonic oscillation of an oscillating pressure signal that propagates in the extracorporeal blood circuit is determined. Impairments of the blood flow are detected in the extracorporeal blood circuit based on a characteristic modification of the phase angle of at least one harmonic oscillation of the pressure signal. A temporal modification of the phase angle may be compared with a predefined threshold value and an impairment is detected if the value of the modification of the phase angle is greater than the predefined threshold value. The method and device permit an early identification of a coagulation of the blood that flows through the haemodialysis unit, so that countermeasures can be initiated promptly.
    Type: Grant
    Filed: September 11, 2004
    Date of Patent: June 11, 2013
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Pascal Kopperschmidt, Malte Gross
  • Patent number: 8439857
    Abstract: A method and a device for recognition of paravasal bleeding upon a supplying of blood to a vascular access via a line and/or upon the removal of blood from a vascular access via a line is provided. A device for extracorporeal blood treatment comprising a device for recognition of paravasal bleeding is also provided. The method and the device are based on the change of arterial pressure in the arterial branch or the venous pressure in the venous branch of the extra-corporeal circuit being registered during the extracorporeal blood treatment. One aspect of the method and the device is that pressure changes that come from a pressure level exhibiting a large difference from a reference value are more strongly considered than those that come from a pressure level that exhibits only a minor difference from the reference value.
    Type: Grant
    Filed: November 14, 2009
    Date of Patent: May 14, 2013
    Assignee: Fresenius Medial Care Deutschland GmbH
    Inventors: Pascal Kopperschmidt, Malte Gross, Reiner Spickermann
  • Publication number: 20120018379
    Abstract: The present invention relates to an apparatus and to a method for the determination and regulation of the concentration of at least one dissolved substance in a fluid circuit, wherein the fluid circuit comprises at least two partial circuits, and wherein the partial circuits are separated by filter in a semi-permeable manner.
    Type: Application
    Filed: March 31, 2010
    Publication date: January 26, 2012
    Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Malte Gross, Andreas Maierhofer
  • Publication number: 20110196279
    Abstract: A device for reversing the blood flow for an extracorporeal blood treatment device, which has an extracorporeal blood circuit, includes an arterial blood line leading from a patient to a blood treatment unit and a venous blood line leading from the blood treatment unit to the patient. Furthermore, an extracorporeal blood treatment device includes a device for reversing the blood flow, and a method includes determining the reversal of the blood flow during an extracorporeal blood treatment. The device for reversing the blood flow for an extracorporeal blood treatment device includes two valve bodies which are rotated relative to one another for reversing the blood flow. The device for reversing the blood flow includes a communication device for receiving an electromagnetic high-frequency field from a read unit of the extracorporeal blood treatment device and for generating at least one identifier characterizing the position of the valve bodies which can be read by the read device.
    Type: Application
    Filed: October 2, 2009
    Publication date: August 11, 2011
    Inventors: Andreas Maierhofer, Malte Gross
  • Publication number: 20110046534
    Abstract: The invention relates to the monitoring of an access to a patient at a puncture point, in particular the monitoring of the arterial and/or venous vascular access during an extracorporeal blood treatment. The device according to the invention is a magnetoelastic moisture sensor, which is embedded in an absorbent material and is laid on the puncture point. For the case in which infusion solution and/or blood exits from the puncture point, the incorrect seating of the puncture cannula can be recognized reliably using the device according to the invention. The absorbent material having the embedded magnetoelastic moisture sensor can be laid like conventional bandage material or a gauze bandage on the puncture point.
    Type: Application
    Filed: March 3, 2009
    Publication date: February 24, 2011
    Inventor: Malte Gross
  • Publication number: 20100133189
    Abstract: The present invention relates to a dialysis liquid circuit with conduits for conducting dialysis liquid and with means for detecting air in the dialysis liquid, wherein the means comprise at least one gas sensor traversed continuously by the dialysis liquid, which is configured such that it measures at least one property of the dialysis liquid which depends on the presence of air bubbles in the dialysis liquid, and which is arranged downstream of a region to be monitored of the dialysis liquid circuit, in which during operation of the dialysis liquid circuit a negative pressure exists with respect to atmospheric pressure, wherein the means comprise an evaluation unit which is connected with the gas sensor and which is configured such that the property measured by means of the gas sensor is evaluated with regard to the presence of air bubbles in the dialysis liquid.
    Type: Application
    Filed: July 30, 2008
    Publication date: June 3, 2010
    Inventors: Andreas Maierhofer, Alfred Gagel, Malte Gross
  • Publication number: 20090321360
    Abstract: The present invention relates to a dialysis machine comprising at least one filter for the filtration of the dialysis liquid and comprising means for determining the calcification of the dialysis machine, wherein the means for the determining of the calcification of the dialysis machine comprising one or more sensors, with the sensor or sensors being configured and arranged such that the ion concentration or a parameter representative of the ion concentration or of its change of the dialysis liquid, of a solution serving the decalcification or of another measuring solution can be detected by these either downstream or upstream and downstream of the at least one filter, and wherein the means for determining the calcification of the dialysis machine furthermore have an evaluation or calculation unit which is configured such that it determines the calcification of the dialysis machine on the basis of the ion concentration or parameter value detected by means of the sensor or sensors.
    Type: Application
    Filed: January 17, 2008
    Publication date: December 31, 2009
    Inventors: Andreas Maierhofer, Alfred Gagel, Malte Gross, Michael Koch
  • Patent number: 7563240
    Abstract: A blood purification device has a blood purification element divided into two chambers by a semipermeable membrane, with a first chamber as part of a dialysis fluid loop and a second chamber as part of an extracorporeal blood loop. By virtue of an analysis unit operatively connected to a sensor in the dialysis fluid loop, the device provides simple and uncomplicated determination of the blood purification performance of the blood purification element for a second material by derivation from a previously established blood purification performance for a first material. In this way, the device also determines the blood concentration of the second material during the blood treatment through measurements in the dialysis fluid without intervention in the treatment sequence.
    Type: Grant
    Filed: February 17, 2004
    Date of Patent: July 21, 2009
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Malte Gross, Andreas Wuepper
  • Publication number: 20070108128
    Abstract: A method and device that identify impairments of the blood flow in an extra-corporeal blood circuit during extracorporeal treatment of the blood using an extracorporeal haemodialysis device, where the phase angle of at least one harmonic oscillation of an oscillating pressure signal that propagates in the extracorporeal blood circuit is determined. Impairments of the blood flow are detected in the extracorporeal blood circuit based on a characteristic modification of the phase angle of at least one harmonic oscillation of the pressure signal. A temporal modification of the phase angle may be compared with a predefined threshold value and an impairment is detected if the value of the modification of the phase angle is greater than the predefined threshold value. The method and device permit an early identification of a coagulation of the blood that flows through the haemodialysis unit, so that countermeasures can be initiated promptly.
    Type: Application
    Filed: September 11, 2004
    Publication date: May 17, 2007
    Inventors: Pascal Kopperschmidt, Malte Gross
  • Publication number: 20060200064
    Abstract: The present invention relates to the field of blood purification devices having a blood purification element (1), divided into two chambers by a semipermeable membrane (2), whose first chamber (3) is part of a dialysis fluid loop and whose second chamber (4) is part of an extracorporeal blood loop. The present invention allows simple and uncomplicated determination of the blood purification performance of the blood purification element for a second material, which is derived from a previously established blood purification performance for a first material, which deviates therefrom. In this way, the blood treatment device according to the present invention also allows the determination of the blood concentration of the second material during the blood treatment through measurements in the dialysis fluid without intervention in the treatment sequence, which was not possible with previous methods.
    Type: Application
    Filed: February 17, 2004
    Publication date: September 7, 2006
    Inventors: Malte Gross, Andreas Wuepper