Patents by Inventor WOLFGANG WEHMEYER
WOLFGANG WEHMEYER 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).
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Patent number: 10755818Abstract: An apparatus configured to quantify and display a time buffer for at least one patient during a blood treatment session is described. A blood treatment apparatus which includes such an apparatus or is in signal communication therewith, and a method for quantifying and presenting the time buffer for at least one patient at a blood treatment session are also described, as well as a computer program, a computer program product and a digital storage medium.Type: GrantFiled: April 23, 2018Date of Patent: August 25, 2020Assignees: Fresenius Medical Care Deutschland GmbH, Fresenius Medical Care Italia S.P.AInventors: Erik Duelsner, Marcello Marazzi, Wolfgang Wehmeyer
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Patent number: 10706486Abstract: A system relating to medical treatment, such as hemodialysis or peritoneal dialysis, for determining user-centric treatment data includes a user device and a central device. The user device and the central device each include a wireless communication component. The wireless communication component of the central device and/or the wireless communication component of the user device is/are configured to distinguish between the user device being in a first location and the user device being in a second location, wherein the first location is associated with a treatment area and the second location is associated with a general purpose area. The user device and/or the central device is configured to determine, based on the user device being in the first location and/or the user device being in the second location, an overall treatment time and an overall spent time.Type: GrantFiled: June 26, 2017Date of Patent: July 7, 2020Assignee: Fresenius Medical Care Deutschland GmbHInventors: Jörg Buschbell, Luca Gialdini, Carlo Barbieri, Flavio Mari, Wolfgang Wehmeyer
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Patent number: 10668198Abstract: A blood treatment apparatus having an extracorporeal circuit has a dialyzate circuit with a dialyzer, having a blood-side chamber, and a dialyzate-side chamber separated from the blood-side chamber by a membrane. The blood-side chamber is in fluid communication with the extracorporeal circuit and the dialyzate-side chamber is in fluid communication with the dialyzate circuit, and the apparatus has a preparation unit for online preparation of a solution. The apparatus has a first means for carrying out a priming mode and a second means for carrying out an initial treatment mode. The first means is configured to control the preparation unit to prepare a flushing solution having a pH of ?7.3, with the extracorporeal circuit being filled with the flushing solution. The second means is configured to control the preparation unit to prepare the dialyzate having a pH of ?7.3, with the dialyzate circuit being filled with the dialyzate.Type: GrantFiled: August 10, 2016Date of Patent: June 2, 2020Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Ursula Kreuzberg, Cacilia Scholz, Stefano Stuard, Wolfgang Wehmeyer
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Patent number: 10532146Abstract: An apparatus for extra-corporeal blood treatment and a method of presetting an initial mode of treatment in the opening phase of an extra-corporeal blood treatment are controlled based on the opening phase of a haemodiafiltration, in which particularly fast removal of electrolytes such as potassium or of urea occurs. The apparatus has a control and computing unit for presetting an initial mode of treatment, in which over a preset interval of time, substituate is fed to the extra-corporeal blood circuit, dialysis fluid is not fed through the dialyser and instead only ultrafiltrate is withdrawn from the dialyser and, on expiry of the preset interval of time, dialysis fluid is fed through the dialyser. Alternatively, dialysis fluid is provided during the preset interval of time through the dialyser at a dialysis fluid flow rate that is smaller than the dialysis fluid flow rate after the preset interval of time has elapsed.Type: GrantFiled: June 6, 2013Date of Patent: January 14, 2020Assignee: Fresenius Medical Care Deutschland GmbHInventors: Tomas Jirka, Joerg Jonas, Volker Nier, Wolfgang Wehmeyer
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Patent number: 10449285Abstract: The present invention relates to a method for controlling a blood treatment apparatus, with the conveying of blood using a blood pump, with the patient venous tubing clamp closed, until a predetermined volume of fluid has passed out of the blood tubing set through the membrane and into the dialysis fluid chamber. It also relates to a control and regulating apparatus and a treatment apparatus. It further relates to a computer program, a computer program product and a digital storage medium.Type: GrantFiled: July 15, 2014Date of Patent: October 22, 2019Assignee: Fresenius Medical Care Deutschland GmbHInventors: Paul Chamney, Pascal Kopperschmidt, Wolfgang Wehmeyer
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Patent number: 10369261Abstract: The invention relates to a method and to a device for supplying a dialysis device with dialysate, and to a dialysis device comprising a device for supplying the dialysis device with dialysate. For producing dialysate, a container 13 filled with a pulverulent dialysate concentrate K is provided, the amount of dialysate concentrate in the container being set in such a way that an amount of dialysate sufficient for a specified number of dialysis treatments can be produced using the dialysate concentrate. The method according to the invention and the device according to the invention make it possible to align the amount K2 of concentrate in the container 13 and the planned consumption amount, which is dependent on the prescription from the doctor and the treatment parameters established by the machine. After the individual dialysis treatments have been carried out, it is continuously monitored whether the amount of concentrate is sufficient.Type: GrantFiled: October 14, 2015Date of Patent: August 6, 2019Assignee: Fresenius Medical Care Deutschland GmbHInventors: Jorg Jonas, Wolfgang Wehmeyer
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Patent number: 10226565Abstract: The present invention relates to a double connector for a tubular insert intended to connect an extra-corporeal circuit to a peristaltic pump. The double connector comprises: a first channel with an axis a1, a second channel with an axis a2 not parallel to a1, a pressure chamber arranged along the first channel and suitable for co-operation with a pressure sensor. The pressure chamber is closed, on the opposite side with respect to the second channel, by a membrane which extends mainly in a plane ? substantially parallel to both the axes a1 and a2. Moreover, a straight line r, passing through both axes a1 and a2 and perpendicular thereto, crosses the membrane. The invention also relates to a tubular insert comprising the double connector and an extra-corporeal circuit comprising the tubular insert.Type: GrantFiled: March 18, 2014Date of Patent: March 12, 2019Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Massimo Fini, Reinhold Reiter, Wolfgang Wehmeyer
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Patent number: 10183105Abstract: An apparatus and method of determining the blood flow rate at which, in an extra-corporeal blood circuit of an extra-corporeal blood treatment apparatus, blood is pumped through the arterial blood line into the blood chamber of the dialyser and out of its blood chamber through the venous blood line is described. The method and apparatus provide for the determination of a plurality of parameters characteristic of the extra-corporeal blood treatment, with a given blood flow rate being determined in each case as a function of one of the characteristic parameters. A blood flow rate which is preset for the blood treatment is selected from the plurality of blood flow rates determined on the basis of the characteristic parameters. The blood flow rate to be preset is selected on the basis of a preset algorithm which may be implemented in software installed on a data processing unit or in hardware.Type: GrantFiled: May 10, 2013Date of Patent: January 22, 2019Assignee: Fresenius Medical Care Deutschland GmbHInventors: Pascal Kopperschmidt, Wolfgang Wehmeyer
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Publication number: 20180236151Abstract: The present invention relates to a blood treatment apparatus having an extracorporeal circuit, having a dialyzate circuit and having a dialyzer which has a blood-side chamber and a dialyzate-side chamber which is separated from the blood-side chamber by a membrane, characterized in that the blood-side chamber is in fluid communication with the extracorporeal circuit and the dialyzate-side chamber is in fluid communication with the dialyzate circuit, and having a preparation unit for the online preparation of a solution, characterized in that the blood treatment apparatus has first means for carrying out a priming mode and has second means for carrying out an initial treatment mode, wherein the first means are configured such that they control the preparation unit such that a flushing solution having a pH of ?7.3, and preferably of ?7.Type: ApplicationFiled: August 10, 2016Publication date: August 23, 2018Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Ursula KREUZBERG, Cacilia SCHOLZ, Stefano STUARD, Wolfgang WEHMEYER
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Publication number: 20180240555Abstract: An apparatus configured to quantify and display a time buffer for at least one patient during a blood treatment session is described. A blood treatment apparatus which includes such an apparatus or is in signal communication therewith, and a method for quantifying and presenting the time buffer for at least one patient at a blood treatment session are also described, as well as a computer program, a computer program product and a digital storage medium.Type: ApplicationFiled: April 23, 2018Publication date: August 23, 2018Inventors: Erik Duelsner, Marcello Marazzi, Wolfgang Wehmeyer
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Patent number: 9977868Abstract: An apparatus configured to quantify and display a time buffer for at least one patient during a blood treatment session is described. A blood treatment apparatus which includes such an apparatus or is in signal communication therewith, and a method for quantifying and presenting the time buffer for at least one patient at a blood treatment session are also described, as well as a computer program, a computer program product and a digital storage medium.Type: GrantFiled: September 4, 2013Date of Patent: May 22, 2018Assignees: Fresenius Medical Care Deutschland GmbH, Fresenius Medical Care Italia S.P.A.Inventors: Erik Duelsner, Marcello Marazzi, Wolfgang Wehmeyer
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Patent number: 9962479Abstract: The present invention relates to a method for controlling a blood treatment apparatus to automatically move it into a certain state after completion of the treatment of a patient carried out with the blood treatment apparatus. It also relates to a control and regulating device and a treatment apparatus. It further relates to a computer program, a computer program product as well as a digital storage medium.Type: GrantFiled: July 15, 2014Date of Patent: May 8, 2018Assignee: Fresenius Medical Care Deutschland GmbHInventors: Maria Teresa Parisotto, Wolfgang Wehmeyer
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Patent number: 9937286Abstract: A medical functional device, provided and designed for single use in a method for extracorporeally treating the blood of a patient, includes at least one process fluid circuit or sections thereof, each provided for receiving a process fluid, at least one first filter device arranged within the process fluid circuit or a section thereof and at least one second filter device arranged within the process fluid circuit or a section thereof. The present invention further relates to a process fluid and a medical treatment apparatus.Type: GrantFiled: June 27, 2011Date of Patent: April 10, 2018Assignee: Fresenius Medical Care Deutschland GmbHInventors: Matthias Brandl, Michael Herrenbauer, Wolfgang Wehmeyer
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Patent number: 9913939Abstract: The present invention relates to a valve arrangement for use in an extracorporeal blood circuit having at least one arterial blood line and at least one venous blood line, the valve arrangement having at least one first valve arranged in the arterial blood line, a second valve arranged in the venous blood line, a fourth valve arranged in a first arteriovenous connection line between the arterial blood line of the circuit and the venous blood line of the circuit, and a fifth valve arranged in a second arteriovenous connection line between the arterial blood line and the venous blood line; and/or a third valve arranged for establishing a fluid connection in a blood line between the arterial blood line and the venous blood line of the circuit; and/or a sixth valve arranged between a blood treatment device and an air venting device of the circuit.Type: GrantFiled: May 16, 2011Date of Patent: March 13, 2018Assignee: Fresenius Medical Care Deutschland GmbHInventors: Angelika Bachmann, Michael Herrenbauer, Wolfgang Wehmeyer
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Publication number: 20180012322Abstract: A system relating to medical treatment, such as hemodialysis or peritoneal dialysis, for determining user-centric treatment data includes a user device and a central device. The user device and the central device each include a wireless communication component. The wireless communication component of the central device and/or the wireless communication component of the user device is/are configured to distinguish between the user device being in a first location and the user device being in a second location, wherein the first location is associated with a treatment area and the second location is associated with a general purpose area. The user device and/or the central device is configured to determine, based on the user device being in the first location and/or the user device being in the second location, an overall treatment time and an overall spent time.Type: ApplicationFiled: June 26, 2017Publication date: January 11, 2018Inventors: Jörg Buschbell, Luca Gialdini, Carlo Barbieri, Flavio Mari, Wolfgang Wehmeyer
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Publication number: 20170326284Abstract: A control and/or regulation device, which is connected via signal link to a first input device, which in particular is operable by a doctor, and to a second input device, which in particular is operable by a patient, wherein the control or regulation device is programmed to control and/or regulate in signal link with a blood treatmentType: ApplicationFiled: September 17, 2015Publication date: November 16, 2017Inventors: Erik Dülsner, Alexander Schrörs, Wolfgang Wehmeyer
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Publication number: 20170304519Abstract: The invention relates to a method and to a device for supplying a dialysis device with dialysate, and to a dialysis device comprising a device for supplying the dialysis device with dialysate. For producing dialysate, a container 13 filled with a pulverulent dialysate concentrate K is provided, the amount of dialysate concentrate in the container being set in such a way that an amount of dialysate sufficient for a specified number of dialysis treatments can be produced using the dialysate concentrate. The method according to the invention and the device according to the invention make it possible to align the amount K2 of concentrate in the container 13 and the planned consumption amount, which is dependent on the prescription from the doctor and the treatment parameters established by the machine. After the individual dialysis treatments have been carried out, it is continuously monitored whether the amount of concentrate is sufficient.Type: ApplicationFiled: October 14, 2015Publication date: October 26, 2017Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Jörg JONAS, Wolfgang WEHMEYER
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Publication number: 20170290969Abstract: The present invention relates to a method and to an apparatus for predicting one or more parameters characteristic for the outcome of a blood treatment, wherein the blood treatment is a treatment in which the blood of the patient has fluid removed via at least one membrane, wherein the parameters are the allowed drinking volume, the hyperhydration or hypohydration of the patient, the clearance of large molecules and/or the allowed salt intake, wherein the prediction of the allowed drinking volume and the prediction of the hyperhydration or hypohydration are carried out on the basis of the planned weight loss due to ultrafiltration, of the drinking quantity during the treatment, of the rinseback volume and of residual diuresis data, and/or wherein the prediction of the clearance of large molecules is carried out on the basis of the urea clearance, and/or wherein the prediction of the allowed salt intake takes place based on the sodium ion quantity removed by ultrafiltration and by diffusion from the blood.Type: ApplicationFiled: September 15, 2015Publication date: October 12, 2017Applicant: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Maria MILLAN-GALANTE, Erik DUELSNER, Wolfgang WEHMEYER
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Patent number: 9592329Abstract: The present invention relates to a system for the carrying out of a blood treatment, in particular a dialysis treatment, wherein the system has at least one blood treatment device, in particular a dialyzer, and at least one tank from which treatment fluid, in particular dialysis fluid, is removed during the carrying out of the blood treatment and/or into which consumed treatment fluid, in particular consumed dialysis fluid, is filled during the carrying out of the blood treatment, wherein the tank is an element of at least one mobile apparatus which can be connected to the blood treatment device such that at least one fluid connection can be established between the tank and the blood treatment device.Type: GrantFiled: March 14, 2011Date of Patent: March 14, 2017Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Robert Pohlmeier, Michael Herrenbauer, Patricia Goempel-Klein, Alfred Krause, Wolfgang Wehmeyer
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Patent number: 9567992Abstract: Fluid pumps and medical treatment devices, in particular dialysis machines, include devices configured such that operating pressures and flow rates of the fluid pumps assume desired characteristics, in particular constant values or controlled profiles. The operating point of a peristaltic hose roller pump is adjusted based on an angle of rotation of a pump rotor, or by adjusting the operating point of a centrifugal pump in accordance with a profile.Type: GrantFiled: April 16, 2013Date of Patent: February 14, 2017Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Alexander Heide, Pascal Kopperschmidt, Ulrich Moissl, Wolfgang Wehmeyer, Christoph Wiktor