Patents by Inventor Martin Crnkovich
Martin Crnkovich 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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Publication number: 20240148947Abstract: Disclosed herein are embodiments of a device that can be powered or charged via ultrasonic energy conducted from another device via a fluid connection. In particular, disclosed herein is a pressure sensor for use with an automatic peritoneal dialysis (APD) cycler wherein power is transferred from the APD cycler to the sensor via ultrasonic wave transmitted through a dialysate fluid. A piezoelectric transducer is used in the device to convert the kinetic energy of the ultrasonic waves in to electrical energy that can be used to power the device or charge a power storage element within the device.Type: ApplicationFiled: November 3, 2022Publication date: May 9, 2024Inventors: David Yuds, Martin Crnkovich, Paul Chamney
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Publication number: 20230149611Abstract: A detector assembly configured for use in a dialysis (e.g., a hemodialysis) system is disclosed herein. The detector assembly including a wetness detector configured to detect blood, fluid, a leak, etc. The detector assembly being operatively coupled to, and more preferably, including an inertial measurement unit (IMU). Thus arranged, the detector assembly is configured to measure, read, obtain, provide, etc. additional information or data during a dialysis treatment, which information or data can be transmitted and/or used to, for example, provide greater insight into the system and/or to make better decisions. In one embodiment, the detector assembly can be used to determine when and how a patient is moving and feed that information back to the dialysis machine. In use, the information or data can be used in combination with other information to make an improved determination as to the requirement for an alert and/or stoppage of the dialysis treatment.Type: ApplicationFiled: November 18, 2021Publication date: May 18, 2023Inventors: Colin Weaver, Martin Crnkovich, David Yuds
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Patent number: 11590454Abstract: A leak may be detected in a heat exchanger of a hemodialysis device. A drain valve is opened by the controller, and then closed by the controller after a pre-selected time period. An initial pressure is determined in the spent dialysate circuit and stored in the memory. A system pressure is determined at periodic time intervals and compared to a pre-determined maximum pressure. The controller then determines whether the heat exchanger has a leak, in that in response to the system pressure exceeding a predetermined maximum pressure, a command is generated to execute an event including suspending a disinfectant operation with a disinfecting agent, and in response to the initial pressure subtracted from the system pressure being greater than a predetermined minimum pressure differential, a command is generated to execute an event including suspending the cleanse operation with the disinfecting agent.Type: GrantFiled: June 25, 2019Date of Patent: February 28, 2023Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Martin Crnkovich, Roland Levin, Christopher McCormick, Fei Wang, Aiyuan Wang
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Patent number: 11481105Abstract: A networked dialysis system includes a dialysis machine, a user interface, and a device that is located remotely from the dialysis machine and that exchanges information with the dialysis machine via a networked communications link. A digital data processor, which is coupled to the dialysis machine and to the remote device, facilitates execution of services on one or more remote digital data processing systems. The digital data processor is coupled to the remote device via the networked communications link and is coupled to the dialysis machine via a second communications link.Type: GrantFiled: October 20, 2020Date of Patent: October 25, 2022Assignee: FRESENIUS MEDICAL CARE HOLDINGS, INC.Inventors: Fei Wang, Martin Crnkovich
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Publication number: 20210103373Abstract: A networked dialysis system includes a dialysis machine, a user interface, and a device that is located remotely from the dialysis machine and that exchanges information with the dialysis machine via a networked communications link. A digital data processor, which is coupled to the dialysis machine and to the remote device, facilitates execution of services on one or more remote digital data processing systems. The digital data processor is coupled to the remote device via the networked communications link and is coupled to the dialysis machine via a second communications link.Type: ApplicationFiled: October 20, 2020Publication date: April 8, 2021Inventors: Fei Wang, Martin Crnkovich
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Patent number: 10912876Abstract: A system for controlling the position of a diaphragm in a diaphragm-containing pressure pod, is provided. The system can include a peristaltic pump, a pressure pod having a flow-through fluid side and a gas side that are separated by a diaphragm, and a pressure sensor operatively connected to the gas side. The pressure sensor is configured to sense pulses of pressure resulting from movement of the diaphragm and caused by the action of the peristaltic pump. A gas source and a valve can be in fluid communication with the gas side of the pressure pod and can be configured to provide gas to, or vent gas from, the gas side. A controller receives pressure signals from the pressure sensor and controls the valve in response, and in so doing, controls the position of the diaphragm. Methods for positioning the diaphragm are also included.Type: GrantFiled: July 8, 2019Date of Patent: February 9, 2021Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Martin Crnkovich, Lee Tanenbaum, Michael Emmanuel Kotsos, Fei Wang, Alex Brown
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Patent number: 10824326Abstract: A networked dialysis system includes a dialysis machine, a user interface, and a device that is located remotely from the dialysis machine and that exchanges information with the dialysis machine via a networked communications link. A digital data processor, which is coupled to the dialysis machine and to the remote device, facilitates execution of services on one or more remote digital data processing systems. The digital data processor is coupled to the remote device via the networked communications link and is coupled to the dialysis machine via a second communications link.Type: GrantFiled: September 18, 2018Date of Patent: November 3, 2020Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Fei Wang, Martin Crnkovich
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Patent number: 10799117Abstract: The invention provides a health care delivery system comprising a plurality of health care delivery devices (e.g., via the Internet, etc.), which can disposed in treatment centers ranging from patient homes to commercial health care facilities such as hospitals, dialysis centers and so forth. Reporting functionality can, instead of or in addition to identifying (and reporting on) discrepancies in the raw and/or analyzed data from the delivery devices, infer (and report) on possible causes of those discrepancies and, in some aspects of the invention, remedy those causes, thereby, providing automated operations support for the treatment centers.Type: GrantFiled: February 15, 2012Date of Patent: October 13, 2020Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Jeffrey J. Sands, Josè Diaz-Buxo, Christian Schlaeper, Martin Crnkovich
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Patent number: 10596311Abstract: A method and system for detecting and neutralizing blood clots during dialysis (e.g., hemodialysis) is provided. A fiber-optic sensor is provided in a hemodialysis machine to detect vibration of blood cells, and the hemodialysis machine can be configured to prevent blood clotting by sounding an alarm, agitating the blood cells, infusing saline, raising temperature and/or infusing heparin.Type: GrantFiled: May 7, 2019Date of Patent: March 24, 2020Assignee: Fresenius Medical Care Holdings, Inc.Inventors: David Yuds, Sameera Anirudh Peesapati, Martin Crnkovich
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Publication number: 20190358388Abstract: A method and system for detecting and neutralizing blood clots during dialysis (e.g., hemodialysis) is provided. A fiber-optic sensor is provided in a hemodialysis machine to detect vibration of blood cells, and the hemodialysis machine can be configured to prevent blood clotting by sounding an alarm, agitating the blood cells, infusing saline, raising temperature and/or infusing heparin.Type: ApplicationFiled: May 7, 2019Publication date: November 28, 2019Inventors: David Yuds, Sameera Anirudh Peesapati, Martin Crnkovich
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Publication number: 20190336673Abstract: A system for controlling the position of a diaphragm in a diaphragm-containing pressure pod, is provided. The system can include a peristaltic pump, a pressure pod having a flow-through fluid side and a gas side that are separated by a diaphragm, and a pressure sensor operatively connected to the gas side. The pressure sensor is configured to sense pulses of pressure resulting from movement of the diaphragm and caused by the action of the peristaltic pump. A gas source and a valve can be in fluid communication with the gas side of the pressure pod and can be configured to provide gas to, or vent gas from, the gas side. A controller receives pressure signals from the pressure sensor and controls the valve in response, and in so doing, controls the position of the diaphragm. Methods for positioning the diaphragm are also included.Type: ApplicationFiled: July 8, 2019Publication date: November 7, 2019Inventors: Martin CRNKOVICH, Lee TANENBAUM, Michael Emmanuel KOTSOS, Fei WANG, Alex BROWN
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Patent number: 10441704Abstract: A system for controlling the position of a diaphragm in a diaphragm-containing pressure pod, is provided. The system can include a peristaltic pump, a pressure pod having a flow-through fluid side and a gas side that are separated by a diaphragm, and a pressure sensor operatively connected to the gas side. The pressure sensor is configured to sense pulses of pressure resulting from movement of the diaphragm and caused by the action of the peristaltic pump. A gas source and a valve can be in fluid communication with the gas side of the pressure pod and can be configured to provide gas to, or vent gas from, the gas side. A controller receives pressure signals from the pressure sensor and controls the valve in response, and in so doing, controls the position of the diaphragm. Methods for positioning the diaphragm are also included.Type: GrantFiled: December 5, 2017Date of Patent: October 15, 2019Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Martin Crnkovich, Lee Tanenbaum, Michael Emmanuel Kotsos, Fei Wang, Alex Brown
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Publication number: 20190308140Abstract: A leak may be detected in a heat exchanger of a hemodialysis device. A drain valve is opened by the controller, and then closed by the controller after a pre-selected time period. An initial pressure is determined in the spent dialysate circuit and stored in the memory. A system pressure is determined at periodic time intervals and compared to a pre-determined maximum pressure. The controller then determines whether the heat exchanger has a leak, in that in response to the system pressure exceeding a predetermined maximum pressure, a command is generated to execute an event including suspending a disinfectant operation with a disinfecting agent, and in response to the initial pressure subtracted from the system pressure being greater than a predetermined minimum pressure differential, a command is generated to execute an event including suspending the cleanse operation with the disinfecting agent.Type: ApplicationFiled: June 25, 2019Publication date: October 10, 2019Inventors: Martin Crnkovich, Roland Levin, Christopher McCormick, Fei Wang, Aiyuan Wang
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Patent number: 10376843Abstract: A leak may be detected in a heat exchanger of a hemodialysis device. A drain valve is opened by the controller, and then closed by the controller after a pre-selected time period. An initial pressure is determined in the spent dialysate circuit and stored in the memory. A system pressure is determined at periodic time intervals and compared to a pre-determined maximum pressure. The controller then determines whether the heat exchanger has a leak, in that in response to the system pressure exceeding a predetermined maximum pressure, a command is generated to execute an event including suspending a disinfectant operation with a disinfecting agent, and in response to the initial pressure subtracted from the system pressure being greater than a predetermined minimum pressure differential, a command is generated to execute an event including suspending the cleanse operation with the disinfecting agent.Type: GrantFiled: January 20, 2017Date of Patent: August 13, 2019Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Martin Crnkovich, Roland Levin, Christopher McCormick, Fei Wang, Aiyuan Wang
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Publication number: 20190114048Abstract: A networked dialysis system includes a dialysis machine, a user interface, and a device that is located remotely from the dialysis machine and that exchanges information with the dialysis machine via a networked communications link. A digital data processor, which is coupled to the dialysis machine and to the remote device, facilitates execution of services on one or more remote digital data processing systems. The digital data processor is coupled to the remote device via the networked communications link and is coupled to the dialysis machine via a second communications link.Type: ApplicationFiled: September 18, 2018Publication date: April 18, 2019Inventors: Fei Wang, Martin Crnkovich
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Patent number: 10078438Abstract: The invention provides, in some aspects, medical apparatus with software-based cursor control and graphical user interface hotspot selection. This can be used, by way of non-limiting example, as part of a graphical user interface by which doctors, nurses, patient care technicians, other health care providers, and/or patients can enter data into enter data and/or to control the apparatus and/or associated medical equipment.Type: GrantFiled: February 26, 2014Date of Patent: September 18, 2018Assignee: FRESENIUS CARE HOLDINGS, INC.Inventors: Fei Wang, Martin Crnkovich
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Publication number: 20180207588Abstract: A leak may be detected in a heat exchanger of a hemodialysis device. A drain valve is opened by the controller, and then closed by the controller after a pre-selected time period. An initial pressure is determined in the spent dialysate circuit and stored in the memory. A system pressure is determined at periodic time intervals and compared to a pre-determined maximum pressure. The controller then determines whether the heat exchanger has a leak, in that in response to the system pressure exceeding a predetermined maximum pressure, a command is generated to execute an event including suspending a disinfectant operation with a disinfecting agent, and in response to the initial pressure subtracted from the system pressure being greater than a predetermined minimum pressure differential, a command is generated to execute an event including suspending the cleanse operation with the disinfecting agent.Type: ApplicationFiled: January 20, 2017Publication date: July 26, 2018Inventors: Martin Crnkovich, Roland Levin, Christopher McCormick, Fei Wang, Aiyuan Wang
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Publication number: 20180093033Abstract: A system for controlling the position of a diaphragm in a diaphragm-containing pressure pod, is provided. The system can include a peristaltic pump, a pressure pod having a flow-through fluid side and a gas side that are separated by a diaphragm, and a pressure sensor operatively connected to the gas side. The pressure sensor is configured to sense pulses of pressure resulting from movement of the diaphragm and caused by the action of the peristaltic pump. A gas source and a valve can be in fluid communication with the gas side of the pressure pod and can be configured to provide gas to, or vent gas from, the gas side. A controller receives pressure signals from the pressure sensor and controls the valve in response, and in so doing, controls the position of the diaphragm. Methods for positioning the diaphragm are also included.Type: ApplicationFiled: December 5, 2017Publication date: April 5, 2018Inventors: Martin Crnkovich, Lee Tanenbaum, Michael Emmanuel Kotsos, Fei Wang, Alex Brown
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Patent number: 9833554Abstract: A system for controlling the position of a diaphragm in a diaphragm-containing pressure pod, is provided. The system can include a peristaltic pump, a pressure pod having a flow-through fluid side and a gas side that are separated by a diaphragm, and a pressure sensor operatively connected to the gas side. The pressure sensor is configured to sense pulses of pressure resulting from movement of the diaphragm and caused by the action of the peristaltic pump. A gas source and a valve can be in fluid communication with the gas side of the pressure pod and can be configured to provide gas to, or vent gas from, the gas side. A controller receives pressure signals from the pressure sensor and controls the valve in response, and in so doing, controls the position of the diaphragm. Methods for positioning the diaphragm are also included.Type: GrantFiled: November 25, 2014Date of Patent: December 5, 2017Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Martin Crnkovich, Lee Tanenbaum, Michael Emmanuel Kotsos, Fei Wang, Alex Brown
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Patent number: 9731059Abstract: A dialysis machine useful in hemodialysis can process or treat a reverse osmosis water flow received through the machine to prepare a dialysate. The machine can include an additive source to introduce an additive, such as bicarbonate, to the reverse osmosis water flow. The machine can include a sensor in fluid communication with the additive introduction point that can measure the conductivity or similar characteristic of the solution. During a first time period when additive is actively introduced to the reverse osmosis water flow, the sensor can measure a relatively high conductivity value. During a second time period when additive is not introduced to the reverse osmosis water flow, the sensor can measure a relatively low conductivity value. The dialysis machine can include a controller that processes these measurements to assist control and operation of the machine.Type: GrantFiled: July 2, 2013Date of Patent: August 15, 2017Assignee: Fresenius Medical Care Holdings, Inc.Inventors: Martin Crnkovich, Aiyuan Wang, Fei Wang