Patents by Inventor Alexander Schroer
Alexander Schroer 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: 12155936Abstract: A method for generating a brightness contribution for a picture element of an image includes providing a first data record including data which describe the effect on light rays of the lens, providing a second data record including data about a point of incidence of a light ray on the image recorder and about a virtual front surface, providing a transformation rule, calculating a first point of intersection of the light ray with the virtual front plane and a direction of the light ray at the first point of intersection by applying the transformation rule to the first and second data records, determining the brightness contribution of the light ray, storing an information item regarding the calculated brightness contribution. The first data record includes data about a second surface and the second data record includes data about a second point of intersection of the light beam with the second surface.Type: GrantFiled: February 3, 2022Date of Patent: November 26, 2024Assignee: Carl Zeiss AGInventors: Martin Koerner, Alexander Schroer, Christopher Weth
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Patent number: 12005168Abstract: The present invention relates to an apparatus (1) for holding a disposable medical item, in particular a dialyzer (2), plasma filter or adsorbent, for treating blood, a system (10) comprising such an apparatus, and a method for operating a disposable medical item for treating blood. A bearing device (4) is thereby configured to rotatably support the disposable item, and a drive device (5) is thereby configured to rotate the rotatably mounted disposable item around a longitudinal axis (L) extending substantially in a direction in which the blood flows through the disposable item when the disposable item is in operation. Alternatively or additionally, a sensor device (6) is configured to detect a rotation of the rotatably mounted disposable item around at least one rotational axis (L, Q), in particular around the longitudinal axis (L) and/or around a transverse axis (Q) running perpendicular to the longitudinal axis (L) and output corresponding sensor data.Type: GrantFiled: April 26, 2019Date of Patent: June 11, 2024Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Alexander Schroers, Sven Marten Czerwonka, Robin Partenfelder, Alexander Mosdzinski, Lena Maria Hahn, Jan-Willem Walde
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Patent number: 11571502Abstract: A pressure measuring line with a connector can be used to connect the pressure measuring line to a blood treatment apparatus, and to a membrane. In some embodiments, the pressure measuring line comprises at least two consecutive lumen sections, namely the first lumen section and the second lumen section. The first lumen section can include a first lumen geometry and the second lumen section can include a second lumen geometry. The first lumen geometry and the second lumen geometry can differ from each other in at least their diameters. Further, a monitoring method and devices can be used in conjunction with the pressure measuring lines.Type: GrantFiled: April 16, 2019Date of Patent: February 7, 2023Assignee: Fresenius Medical Care Deutschland GmbHInventors: Juergen Klewinghaus, Alexander Schroers
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Publication number: 20220412343Abstract: The present disclosure relates to a test device to be inserted into the syringe receptacle of a pump, for example for a blood treatment apparatus, for testing at least one function of the pump and/or of the blood treatment apparatus. The test device includes a holding device for releasably holding the test device on the housing of the blood treatment apparatus. In addition, the test device includes at least one movable actuator and at least one electric motor arranged to directly or indirectly move said movable actuator or a section thereof.Type: ApplicationFiled: December 2, 2020Publication date: December 29, 2022Inventors: Lena Schreiber, Sven Marten Czerwonka, Alexander Schroers
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Publication number: 20220395430Abstract: The present disclosure relates to a bag holder for receiving a first effluent bag, which serves for receiving effluent resulting from a blood treatment being performed by a blood treatment apparatus and includes at least one closable effluent outlet opening and at least one effluent inlet opening. The bag holder includes one or several rollers for rolling the bag holder and at least one of the following features: a holding device for holding the first effluent bag in the bag holder, a receptacle for receiving the first effluent bag or a section thereof, a pump section for conveying effluent out of first effluent bag being received in the bag holder, at least one effluent outlet line for guiding effluent towards the pump section and/or out of the first effluent bag and/or at least one basin line for guiding effluent into the first effluent bag and/or away from the bag holder.Type: ApplicationFiled: November 5, 2020Publication date: December 15, 2022Inventors: Juergen Klewinghaus, Inge Knoblach, Robin Partenfelder, Alexander Schroers, Jan-Willem Walde
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Patent number: 11466235Abstract: The present invention lies in the field of simulation systems for medical treatments, in particular for treatments carried out on dialysis machines. To do so, a method with which medical treatments can be performed and evaluated without the involvement of real human patients is proposed.Type: GrantFiled: March 27, 2008Date of Patent: October 11, 2022Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBHInventors: Holger Bluemler, Alexander Schroers, Yannick Froese
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Publication number: 20220247906Abstract: A method for generating a brightness contribution for a picture element of an image includes providing a first data record including data which describe the effect on light rays of the lens, providing a second data record including data about a point of incidence of a light ray on the image recorder and about a virtual front surface, providing a transformation rule, calculating a first point of intersection of the light ray with the virtual front plane and a direction of the light ray at the first point of intersection by applying the transformation rule to the first and second data records, determining the brightness contribution of the light ray, storing an information item regarding the calculated brightness contribution. The first data record includes data about a second surface and the second data record includes data about a second point of intersection of the light beam with the second surface.Type: ApplicationFiled: February 3, 2022Publication date: August 4, 2022Inventors: Martin Koerner, Alexander Schroer, Christopher Weth
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Publication number: 20210236709Abstract: The present disclosure relates to a pressure measuring line, with a connector to connect the pressure measuring line to a blood treatment apparatus, and to a membrane. In some embodiments, the pressure measuring line comprises at least two consecutive lumen sections, namely the first lumen section and the second lumen section. The first lumen section comprises a first lumen geometry and the second lumen section comprises a second lumen geometry, whereby the first lumen geometry and the second lumen geometry differ from each other in at least their diameters. Further, a monitoring method and devices are described.Type: ApplicationFiled: April 16, 2019Publication date: August 5, 2021Inventors: Juergen Klewinghaus, Alexander Schroers
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Publication number: 20210106740Abstract: The present disclosure relates to a holder for releasably coupling at least one external medical module, for example a blood filter, to a medical treatment apparatus, wherein the holder comprises at least a first reception unit and a second reception unit.Type: ApplicationFiled: March 28, 2018Publication date: April 15, 2021Inventors: Juergen Klewinghaus, Alexander Schroers
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Patent number: 10046120Abstract: A device for detecting moisture for an arrangement for monitoring an access to a patient for a system by which, via a flexible line, a liquid is fed to a patient and/or a liquid is fed out from the patient, and in particular for monitoring the vascular access in extra-corporeal blood treatment and particularly for monitoring a central venous catheter for acute dialysis includes at least a portion which can be deformed into a sleeve and placed around the circumference of the flexible line or of a connecting system. The portion in sleeve form has fastening means for fixing it in place in the position in which it surrounds the flexible line or the connecting system. The portion in sleeve form allows the device to be fastened quickly and securely to a flexible line or a connecting system.Type: GrantFiled: July 10, 2017Date of Patent: August 14, 2018Assignee: Fresenius Medical Care Deutschland GmbHInventors: John Heppe, Andrea Kraemer, Alexander Schroers, Andreas Wuepper
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Publication number: 20170304560Abstract: A device for detecting moisture for an arrangement for monitoring an access to a patient for a system by which, via a flexible line, a liquid is fed to a patient and/or a liquid is fed out from the patient, and in particular for monitoring the vascular access in extra-corporeal blood treatment and particularly for monitoring a central venous catheter for acute dialysis includes at least a portion which can be deformed into a sleeve and placed around the circumference of the flexible line or of a connecting system. The portion in sleeve form has fastening means for fixing it in place in the position in which it surrounds the flexible line or the connecting system. The portion in sleeve form allows the device to be fastened quickly and securely to a flexible line or a connecting system.Type: ApplicationFiled: July 10, 2017Publication date: October 26, 2017Inventors: John Heppe, Andrea Kraemer, Alexander Schroers, Andreas Wuepper
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Patent number: 9731086Abstract: A device for detecting moisture for an arrangement for monitoring an access to a patient for a system by which, via a flexible line, a liquid is fed to a patient and/or a liquid is fed out from the patient, and in particular for monitoring the vascular access in extra-corporeal blood treatment and particularly for monitoring a central venous catheter for acute dialysis includes at least a portion which can be deformed into a sleeve and placed around the circumference of the flexible line or of a connecting system. The portion in sleeve form has fastening means for fixing it in place in the position in which it surrounds the flexible line or the connecting system. The portion in sleeve form allows the device to be fastened quickly and securely to a flexible line or a connecting system.Type: GrantFiled: June 28, 2013Date of Patent: August 15, 2017Assignee: Fresenius Medical Care Deutschland GmbHInventors: John Heppe, Andrea Kraemer, Alexander Schroers, Andreas Wuepper
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Patent number: 9645218Abstract: A method and device for testing sensors to be applied on a patient's skin for detection of liquid or moisture are described, in particular for monitoring vascular access in an extracorporeal blood treatment, in which a patient's blood is carried away from the patient via an arterial line and is fed to the patient via a venous line. A method for producing sensors to be applied on a patient's skin for detection of liquid or moisture is also described. The method and device according to the present invention are based on the testing of one or more moisture sensors which are taken from current production. The method includes providing a large number of twists of the moisture sensor applied onto a torsion body, the mechanical stresses thus recreating the stresses that can occur in practice when the moisture sensor is applied or stuck onto the patient's skin or forearm.Type: GrantFiled: August 28, 2013Date of Patent: May 9, 2017Assignee: Fresenius Medical Care Deutschland GmbHInventors: Alexander Schroers, John Heppe, Roland Rullof
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Patent number: 9295791Abstract: A device for detecting moisture for an arrangement for monitoring an access to a patient for a system by which, via a flexible line, a liquid is fed to and/or out from the patient, for monitoring the vascular access in extra-corporeal blood treatment and for monitoring a central venous access in acute dialysis, an arrangement for monitoring an access to a patient, and a method of producing a device for detecting moisture for connection to a monitoring arrangement are described. The device for detecting moisture is characterized in that at least a part or portion of the device takes the form of a resilient attaching element having parts which fit round a flexible line and/or a system for connecting a flexible line. The attaching element, which is formed after the fashion of a clip, allows the device for detecting moisture to be attached quickly and securely to a flexible line.Type: GrantFiled: July 8, 2013Date of Patent: March 29, 2016Assignee: Fresenius Medical Care Deutschland GmbHInventors: Alexander Schroers, John Heppe
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Publication number: 20140059837Abstract: A method and device for testing sensors to be applied on a patient's skin for detection of liquid or moisture are described, in particular for monitoring vascular access in an extracorporeal blood treatment, in which a patient's blood is carried away from the patient via an arterial line and is fed to the patient via a venous line. A method for producing sensors to be applied on a patient's skin for detection of liquid or moisture is also described. The method and device according to the present invention are based on the testing of one or more moisture sensors which are taken from current production. The method includes providing a large number of twists of the moisture sensor applied onto a torsion body, the mechanical stresses thus recreating the stresses that can occur in practice when the moisture sensor is applied or stuck onto the patient's skin or forearm.Type: ApplicationFiled: August 28, 2013Publication date: March 6, 2014Inventors: Alexander Schroers, John Heppe, Roland Rullof
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Publication number: 20140012199Abstract: A device for detecting moisture for an arrangement for monitoring an access to a patient for a system by which, via a flexible line, a liquid is fed to and/or out from the patient, for monitoring the vascular access in extra-corporeal blood treatment and for monitoring a central venous access in acute dialysis, an arrangement for monitoring an access to a patient, and a method of producing a device for detecting moisture for connection to a monitoring arrangement are described. The device for detecting moisture is characterised in that at least a part or portion of the device takes the form of a resilient attaching element having parts which fit round a flexible line and/or a system for connecting a flexible line. The attaching element, which is formed after the fashion of a clip, allows the device for detecting moisture to be attached quickly and securely to a flexible line.Type: ApplicationFiled: July 8, 2013Publication date: January 9, 2014Inventors: Alexander Schroers, John Heppe
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Publication number: 20140012197Abstract: A device for detecting moisture for an arrangement for monitoring an access to a patient for a system by which, via a flexible line, a liquid is fed to a patient and/or a liquid is fed out from the patient, and in particular for monitoring the vascular access in extra-corporeal blood treatment and particularly for monitoring a central venous catheter for acute dialysis includes at least a portion which can be deformed into a sleeve and placed around the circumference of the flexible line or of a connecting system. The portion in sleeve form has fastening means for fixing it in place in the position in which it surrounds the flexible line or the connecting system. The portion in sleeve form allows the device to be fastened quickly and securely to a flexible line or a connecting system.Type: ApplicationFiled: June 28, 2013Publication date: January 9, 2014Inventors: John Heppe, Andrea Kraemer, Alexander Schroers, Andreas Wuepper
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Patent number: 8454550Abstract: An apparatus is disclosed for detecting moisture, which is intended for the use in an apparatus for monitoring an access to a patient for a device by means of which a fluid is conducted to and/or removed from a patient via a hose line, in particular for monitoring the vascular access during an extracorporeal blood treatment, wherein blood of a patient is removed from the patient via an arterial hose line, which has an arterial puncture cannula, and is conducted back to the patient via a venous hose line, which has a venous puncture cannula. The apparatus for detecting moisture is designed as a pad which is made of a flexible material and is to be applied onto the patient's skin and which comprises an upper side facing away from the patient's skin and a lower side facing the patient's skin. The pad comprises an opening for the passage of fluid, in particular blood, and a moisture sensor having contact elements for the connection of the same.Type: GrantFiled: February 11, 2010Date of Patent: June 4, 2013Assignee: Fresenius Medical Care Deutschland GmbHInventors: Christoph Koenig, Alexander Schroers, Andreas Wuepper, Alexander Heide, Juergen Klewinghaus