Patents by Inventor Stephen A. Merchant

Stephen A. Merchant 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).

  • Publication number: 20250186665
    Abstract: A dialysis system has a module with a dialyzer configured to remove one or more substances from a dialysis solution as it passes through a dialyzer. The module has a fluid line, a sorbent cartridge, and a sodium control system adapted to actively alter a sodium concentration of dialysis solution passing through the fluid line as the dialysis solution exits the sorbent cartridge. The sodium control system has a conductivity sensor that sends a signal indicating the conductivity of the dialysis solution as the dialysis solution exits the sorbent cartridge, the conductivity meter being in communication with the sodium control system, a processor configured to receive the signal from the conductivity sensor, compare the conductivity signal to a threshold value lower than a prescription value, and cause the sodium control system to stop actively altering the sodium concentration if the signal is greater than the threshold value.
    Type: Application
    Filed: December 13, 2024
    Publication date: June 12, 2025
    Inventors: Natalie Rebacz, Kerissa Adams, Stephen A. Merchant, Mary Hoover
  • Publication number: 20250166813
    Abstract: Augmented reality-based training and troubleshooting is described for medical devices. An electronic mobile device can be equipped with an AR application that, when executed, causes the electronic mobile device to provide augmented reality-based training on how to set up, or perform maintenance on, one or more components of a medical device. The AR application, when executed, can also cause the electronic mobile device to provide augmented reality-based troubleshooting for one or more components of a medical device.
    Type: Application
    Filed: January 15, 2025
    Publication date: May 22, 2025
    Inventors: Harvey Cohen, Matthew Buraczenski, John E. Tremblay, Kulwinder S. Plahey, Stephen A. Merchant, James Peterson
  • Patent number: 12230390
    Abstract: Augmented reality-based training and troubleshooting is described for medical devices. An electronic mobile device can be equipped with an AR application that, when executed, causes the electronic mobile device to provide augmented reality-based training on how to set up, or perform maintenance on, one or more components of a medical device. The AR application, when executed, can also cause the electronic mobile device to provide augmented reality-based troubleshooting for one or more components of a medical device.
    Type: Grant
    Filed: September 6, 2023
    Date of Patent: February 18, 2025
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Harvey Cohen, Matthew Buraczenski, John E. Tremblay, Kulwinder S. Plahey, Stephen A. Merchant, James Peterson
  • Patent number: 12201759
    Abstract: A dialysis system has a module with a dialyzer configured to remove one or more substances from a dialysis solution as it passes through a dialyzer. The module has a fluid line, a sorbent cartridge, and a sodium control system adapted to actively alter a sodium concentration of dialysis solution passing through the fluid line as the dialysis solution exits the sorbent cartridge. The sodium control system has a conductivity sensor that sends a signal indicating the conductivity of the dialysis solution as the dialysis solution exits the sorbent cartridge, the conductivity meter being in communication with the sodium control system, a processor configured to receive the signal from the conductivity sensor, compare the conductivity signal to a threshold value lower than a prescription value, and cause the sodium control system to stop actively altering the sodium concentration if the signal is greater than the threshold value.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: January 21, 2025
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Natalie Rebacz, Kerissa Adams, Stephen A. Merchant, Mary Hoover
  • Patent number: 12048790
    Abstract: The application refers to a medical treatment device a medical treatment system and a method for operating the medical treatment device and medical treatment system for treatment of a patient, comprising a sensor interface for receiving sensor data from a plurality of different external and internal peripheral sensors, a controller for processing the received sensor data in order to calculate control data and for providing the calculated control data for controlling medical treatment-related devices or for controlling a configuration of medical treatment-related apparatuses and an output interface for providing the control data.
    Type: Grant
    Filed: October 19, 2020
    Date of Patent: July 30, 2024
    Assignees: Fresenius Medical Care Deutschland GmbH, Medical Care Holdings, Inc.
    Inventors: Alexander Heide, Karsten Fischer, Stephen A. Merchant
  • Publication number: 20230410999
    Abstract: Augmented reality-based training and troubleshooting is described for medical devices. An electronic mobile device can be equipped with an AR application that, when executed, causes the electronic mobile device to provide augmented reality-based training on how to set up, or perform maintenance on, one or more components of a medical device. The AR application, when executed, can also cause the electronic mobile device to provide augmented reality-based troubleshooting for one or more components of a medical device.
    Type: Application
    Filed: September 6, 2023
    Publication date: December 21, 2023
    Inventors: Harvey Cohen, Matthew Buraczenski, John E. Tremblay, Kulwinder S. Plahey, Stephen A. Merchant, James Peterson
  • Patent number: 11783940
    Abstract: Augmented reality-based training and troubleshooting is described for medical devices. An electronic mobile device can be equipped with an AR application that, when executed, causes the electronic mobile device to provide augmented reality-based training on how to set up, or perform maintenance on, one or more components of a medical device. The AR application, when executed, can also cause the electronic mobile device to provide augmented reality-based troubleshooting for one or more components of a medical device.
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: October 10, 2023
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Harvey Cohen, Matthew Buraczenski, John E. Tremblay, Kulwinder S. Plahey, Stephen A. Merchant, James Peterson
  • Publication number: 20230019233
    Abstract: In one aspect, a system includes a blood treatment machine; a dialyzer configured to be coupled to the blood treatment machine, the dialyzer including a dialyzer housing defining a blood inlet and a blood outlet; a bundle of hollow fibers within an interior of the dialyzer housing; a pumping device drivable to force blood received from the blood inlet through lumens of the bundle of hollow fibers and out the blood outlet; a dialysate inlet port in fluid communication with a dialysate flow path that includes space in the interior of the dialyzer housing between the bundle of hollow fibers; and a dialysate outlet port in fluid communication with the dialysate flow path. The system further includes a fluid conditioning system configured to (i) prepare and supply fresh dialysate to the dialyzer via the dialysate inlet port, and (ii) receive spent dialysate from the dialyzer via the dialysate outlet port, recycle the spent dialysate, and supply the recycled dialysate to the dialyzer via the dialysate inlet port.
    Type: Application
    Filed: December 11, 2020
    Publication date: January 19, 2023
    Inventors: Lynn E. Jensen, Stephen A. Merchant, Arne Peters, Alexander Heide, Dejan Nikolic
  • Publication number: 20220323660
    Abstract: In one aspect, a medical device includes: a housing; a plurality of attachment points disposed on a face of the housing and configured to hold a medical fluid tubing system; a lighting system disposed at or below the face of the housing; and a processor configured to control the lighting system to (a) visually indicate the locations of the attachment points and (b) in response to a feedback signal indicating whether or not the medical fluid tubing system is attached to at least one of the attachment points, alter the visual indication of the lighting system.
    Type: Application
    Filed: April 7, 2021
    Publication date: October 13, 2022
    Inventors: James Peterson, Stephen A. Merchant, David Yuds, Jon F. Moss
  • Publication number: 20220265910
    Abstract: A dialysis system has a module with a dialyzer configured to remove one or more substances from a dialysis solution as it passes through a dialyzer. The module has a fluid line, a sorbent cartridge, and a sodium control system adapted to actively alter a sodium concentration of dialysis solution passing through the fluid line as the dialysis solution exits the sorbent cartridge. The sodium control system has a conductivity sensor that sends a signal indicating the conductivity of the dialysis solution as the dialysis solution exits the sorbent cartridge, the conductivity meter being in communication with the sodium control system, a processor configured to receive the signal from the conductivity sensor, compare the conductivity signal to a threshold value lower than a prescription value, and cause the sodium control system to stop actively altering the sodium concentration if the signal is greater than the threshold value.
    Type: Application
    Filed: August 3, 2020
    Publication date: August 25, 2022
    Inventors: Natalie Rebacz, Kerissa Adams, Stephen A. Merchant, Mary Hoover
  • Publication number: 20220130508
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for performing dialysis. In one aspect, a dialysis hub receives a request to use a dialysis machine. The dialysis hub transmits a list of available dialysis machines.
    Type: Application
    Filed: February 11, 2020
    Publication date: April 28, 2022
    Inventors: Stephen A. Merchant, Olaf Schermeier, Kirill Koulechov, Zdenek Cerman, Christopher Hauke
  • Publication number: 20220130527
    Abstract: The present disclosure relates to a method for executing a sharing enabler of a registered medical treatment machine. The registered medical treatment machine is used in a shared medical treatment system. The method comprises the method steps: Providing a registration procedure for registering the medical treatment machine in the shared medical treatment system; Receiving an initiation request for initiating a medical treatment for a patient, being registered in the shared medical treatment system; Checking whether the received initiation request is valid by receiving a confirmation signal and if yes: Unlocking the medical treatment machine in reply to the received confirmation signal for use for the patient; Operating the medical treatment machine according to a treatment procedure in a sharing mode.
    Type: Application
    Filed: February 11, 2020
    Publication date: April 28, 2022
    Inventors: Christina I. Allegrini, Harvey Cohen, John Viero, Kirill Koulechov, Maria Millan-Galante, Matthew Buraczenski, Michael Thorwarth, Paul von Buenau, Shashikant Dattatraya Kalaskar, Stephen A. Merchant, Thomas Stahl, Thorsten Timm, Nina Muellers, Klaus Wolf, Erik Schumacher, Olaf Schermeier, Zdenek Cerman, Christopher Hauke
  • Publication number: 20210249129
    Abstract: Augmented reality-based training and troubleshooting is described for medical devices. An electronic mobile device can be equipped with an AR application that, when executed, causes the electronic mobile device to provide augmented reality-based training on how to set up, or perform maintenance on, one or more components of a medical device. The AR application, when executed, can also cause the electronic mobile device to provide augmented reality-based troubleshooting for one or more components of a medical device.
    Type: Application
    Filed: April 30, 2021
    Publication date: August 12, 2021
    Inventors: Kulwinder S. Plahey, Stephen A. Merchant, James Peterson, Harvey Cohen, Matthew Buraczenski, John E. Tremblay
  • Patent number: 11031128
    Abstract: Augmented reality-based training and troubleshooting is described for medical devices. An electronic mobile device can be equipped with an AR application that, when executed, causes the electronic mobile device to provide augmented reality-based training on how to set up, or perform maintenance on, one or more components of a medical device. The AR application, when executed, can also cause the electronic mobile device to provide augmented reality-based troubleshooting for one or more components of a medical device.
    Type: Grant
    Filed: January 25, 2019
    Date of Patent: June 8, 2021
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Kulwinder S. Plahey, Stephen A. Merchant, James Peterson, Harvey Cohen, Matthew Buraczenski, John E. Tremblay
  • Publication number: 20210030939
    Abstract: The application refers to a medical treatment device a medical treatment system and a method for operating the medical treatment device and medical treatment system for treatment of a patient, comprising a sensor interface for receiving sensor data from a plurality of different external and internal peripheral sensors, a controller for processing the received sensor data in order to calculate control data and for providing the calculated control data for controlling medical treatment-related devices or for controlling a configuration of medical treatment-related apparatuses and an output interface for providing the control data.
    Type: Application
    Filed: October 19, 2020
    Publication date: February 4, 2021
    Inventors: Alexander Heide, Karsten Fischer, Stephen A. Merchant
  • Publication number: 20200243193
    Abstract: Augmented reality-based training and troubleshooting is described for medical devices. An electronic mobile device can be equipped with an AR application that, when executed, causes the electronic mobile device to provide augmented reality-based training on how to set up, or perform maintenance on, one or more components of a medical device. The AR application, when executed, can also cause the electronic mobile device to provide augmented reality-based troubleshooting for one or more components of a medical device.
    Type: Application
    Filed: January 25, 2019
    Publication date: July 30, 2020
    Inventors: Kulwinder S. Plahey, Stephen A. Merchant, James Peterson, Harvey Cohen, Matthew Buraczenski, John E. Tremblay
  • Patent number: 10603421
    Abstract: Cartridges useful in regenerating or purifying dialysis solutions are described as well as methods to regenerate or purify spent dialysis solutions. Dialysis methods using the sorbent cartridges of the present invention are further described.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: March 31, 2020
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventor: Stephen A. Merchant
  • Publication number: 20180177933
    Abstract: Cartridges useful in regenerating or purifying dialysis solutions are described as well as methods to regenerate or purify spent dialysis solutions. Dialysis methods using the sorbent cartridges of the present invention are further described.
    Type: Application
    Filed: July 22, 2016
    Publication date: June 28, 2018
    Applicant: Fresenius Medical Care Holdings, Inc.
    Inventor: Stephen A. Merchant
  • Patent number: 9867918
    Abstract: Cartridges useful in regenerating or purifying dialysis solutions are described as well as methods to regenerate or purify spent dialysis solutions. Dialysis methods using the sorbent cartridges of the present invention are further described.
    Type: Grant
    Filed: March 13, 2015
    Date of Patent: January 16, 2018
    Assignee: Fresenius Medical Care Holdings, Inc.
    Inventors: Stephen A. Merchant, Kerissa Adams
  • Publication number: 20170260560
    Abstract: An amperometric biosensor is provided for determination of creatinine in a sample fluid. The biosensor can be an enzyme-polymer composition having at least one redox polymer and a plurality of enzymes immobilized on an electrode surface. Methods of preparing the amperometric biosensor are included. In addition, methods and systems using the amperometric biosensor in measuring creatinine concentrations of a patient and treatments of a patient with monitoring of the progress of dialysis performed on the patient are also provided.
    Type: Application
    Filed: May 22, 2017
    Publication date: September 14, 2017
    Applicant: Fresenius Medical Care Holdings, Inc.
    Inventor: Stephen A. Merchant