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).

  • Patent number: 12155936
    Abstract: 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: Grant
    Filed: February 3, 2022
    Date of Patent: November 26, 2024
    Assignee: Carl Zeiss AG
    Inventors: Martin Koerner, Alexander Schroer, Christopher Weth
  • Patent number: 12005168
    Abstract: 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: Grant
    Filed: April 26, 2019
    Date of Patent: June 11, 2024
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Alexander Schroers, Sven Marten Czerwonka, Robin Partenfelder, Alexander Mosdzinski, Lena Maria Hahn, Jan-Willem Walde
  • Patent number: 11571502
    Abstract: 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: Grant
    Filed: April 16, 2019
    Date of Patent: February 7, 2023
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Juergen Klewinghaus, Alexander Schroers
  • Publication number: 20220412343
    Abstract: 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: Application
    Filed: December 2, 2020
    Publication date: December 29, 2022
    Inventors: Lena Schreiber, Sven Marten Czerwonka, Alexander Schroers
  • Publication number: 20220395430
    Abstract: 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: Application
    Filed: November 5, 2020
    Publication date: December 15, 2022
    Inventors: Juergen Klewinghaus, Inge Knoblach, Robin Partenfelder, Alexander Schroers, Jan-Willem Walde
  • Patent number: 11466235
    Abstract: 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: Grant
    Filed: March 27, 2008
    Date of Patent: October 11, 2022
    Assignee: FRESENIUS MEDICAL CARE DEUTSCHLAND GMBH
    Inventors: Holger Bluemler, Alexander Schroers, Yannick Froese
  • Publication number: 20220247906
    Abstract: 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: Application
    Filed: February 3, 2022
    Publication date: August 4, 2022
    Inventors: Martin Koerner, Alexander Schroer, Christopher Weth
  • Publication number: 20210236709
    Abstract: 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: Application
    Filed: April 16, 2019
    Publication date: August 5, 2021
    Inventors: Juergen Klewinghaus, Alexander Schroers
  • Publication number: 20210106740
    Abstract: 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: Application
    Filed: March 28, 2018
    Publication date: April 15, 2021
    Inventors: Juergen Klewinghaus, Alexander Schroers
  • Patent number: 10046120
    Abstract: 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: Grant
    Filed: July 10, 2017
    Date of Patent: August 14, 2018
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: John Heppe, Andrea Kraemer, Alexander Schroers, Andreas Wuepper
  • Publication number: 20170304560
    Abstract: 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: Application
    Filed: July 10, 2017
    Publication date: October 26, 2017
    Inventors: John Heppe, Andrea Kraemer, Alexander Schroers, Andreas Wuepper
  • Patent number: 9731086
    Abstract: 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: Grant
    Filed: June 28, 2013
    Date of Patent: August 15, 2017
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: John Heppe, Andrea Kraemer, Alexander Schroers, Andreas Wuepper
  • Patent number: 9645218
    Abstract: 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: Grant
    Filed: August 28, 2013
    Date of Patent: May 9, 2017
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Alexander Schroers, John Heppe, Roland Rullof
  • Patent number: 9295791
    Abstract: 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: Grant
    Filed: July 8, 2013
    Date of Patent: March 29, 2016
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Alexander Schroers, John Heppe
  • Publication number: 20140059837
    Abstract: 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: Application
    Filed: August 28, 2013
    Publication date: March 6, 2014
    Inventors: Alexander Schroers, John Heppe, Roland Rullof
  • Publication number: 20140012199
    Abstract: 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: Application
    Filed: July 8, 2013
    Publication date: January 9, 2014
    Inventors: Alexander Schroers, John Heppe
  • Publication number: 20140012197
    Abstract: 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: Application
    Filed: June 28, 2013
    Publication date: January 9, 2014
    Inventors: John Heppe, Andrea Kraemer, Alexander Schroers, Andreas Wuepper
  • Patent number: 8454550
    Abstract: 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: Grant
    Filed: February 11, 2010
    Date of Patent: June 4, 2013
    Assignee: Fresenius Medical Care Deutschland GmbH
    Inventors: Christoph Koenig, Alexander Schroers, Andreas Wuepper, Alexander Heide, Juergen Klewinghaus