Patents by Inventor Mark T. Wyeth
Mark T. Wyeth 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: 10835657Abstract: The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.Type: GrantFiled: April 11, 2019Date of Patent: November 17, 2020Assignee: NxStage Medical, Inc.Inventors: Jeffrey H. Burbank, Dennis M. Treu, Daniel J. Rubery, Jr., Scott W. Newell, James M. Brugger, William J. Schnell, William K. Weigel, Steven A. White, Mark T. Wyeth, Jerome James, David Desouza, Joseph E. Turk, Jr., Garrett Casey
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Publication number: 20200206405Abstract: A blood treatment system with pressure sensors may be configured to control blood flow to and from the patient and use readings of the pressure sensors to determine a change in a pressure drop across a flow restriction in the blood circuit to estimate a condition of the machine or the patient, or outputting data responsive to the estimation. Further embodiments employ measurement of pressure drop to detect abnormal viscosity or viscosity variations in order to detect possible infection.Type: ApplicationFiled: August 30, 2017Publication date: July 2, 2020Applicant: NxStage Medical, Inc.Inventors: Mark T. WYETH, Robert Paul MCCARTY, Gregory YANTZ, James Ian JOHNSON, Joseph E. TURK, Jr., James M. BRUGGER, Jeffrey H. BURBANK
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Patent number: 10688235Abstract: A method of performing a dialysis treatment includes using a pump and a dialysate supply line to transport peritoneal dialysis fluid, the supply line having a proximal end into which peritoneal dialysis fluid is supplied and from which spend dialysate is withdrawn, and a distal end which is connected to a patient's peritoneal access. The method further includes generating proximal and distal pressure signals using pressure detectors located at both the proximal and distal ends, respectively, of said supply line. During a drain cycle in which spent dialysate is pumped from the patient, the method includes, responsively to the proximal and distal pressure signals, detecting a characteristic of a pressure difference between the distal and proximal ends whose magnitude is determined by a predicted change in dialysate properties, and responsively to the characteristic, generating a signal indicating the change in dialysate properties.Type: GrantFiled: March 31, 2017Date of Patent: June 23, 2020Assignee: NxStage Medical, Inc.Inventors: Jeffrey H. Burbank, James M. Brugger, Dennis M. Treu, Mark T. Wyeth
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Patent number: 10688234Abstract: A method of performing a peritoneal dialysis treatment includes connecting a disposable unit to a source of water. The disposable unit includes at least a first container holding a sterile concentrate containing an osmotic agent, a second container holding a sterile concentrate containing electrolytes, an empty sterile mixing container, and a tubing set with a pre-attached peritoneal fill/drain line. The method also includes receiving a prescription command by a controller, indicating at least the fill volume and desired final concentration of the osmotic agent to be used for a current fill cycle under said treatment, and pumping a quantity of the concentrated osmotic agent that is at least sufficient to achieve the desired final concentration into the mixing container. The contest of the mixing container are mixed, further diluted or concentrated, and then flowed to a patient.Type: GrantFiled: March 31, 2017Date of Patent: June 23, 2020Assignee: NxStage Medical, Inc.Inventors: Jeffrey H. Burbank, James M. Brugger, Dennis M. Treu, Mark T. Wyeth
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Patent number: 10610630Abstract: A method of performing a peritoneal dialysis treatment includes connecting a disposable unit to a source of water, the disposable unit including at least a first container holding a sterile concentrate containing an osmotic agent, a second container holding a sterile concentrate containing electrolytes, an empty sterile mixing container, and a tubing set with a pre-attached peritoneal fill/drain line. The method further includes receiving a prescription command by a controller, indicating at least the fill volume and desired final concentration of the osmotic agent to be used for a current fill cycle under said treatment, and using the controller, pumping a quantity of the concentrated osmotic agent that is at least sufficient to achieve the desired final concentration into the mixing container. The contents of the mixing container are mixed, further diluted or concentrated, and then flowed to a patient.Type: GrantFiled: March 31, 2017Date of Patent: April 7, 2020Assignee: NxStage Medical, Inc.Inventors: Jeffrey H. Burbank, James M. Brugger, Dennis M. Treu, Mark T. Wyeth
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Patent number: 10603424Abstract: A disposable fluid circuit used in a medical device that performs peritoneal dialysis includes a peritoneal dialysis tubing set that has a connection tube with a connector for a peritoneal catheter at a distal end and a connector configured to connect to a peritoneal cycler at a proximal end. The circuit also includes a pressure pod at the distal end, the pressure pod being of the type that has a flow chamber for carrying a liquid and an air chamber separated from the flow chamber by a diaphragm and an air port in fluid communication with the air chamber. The flow chamber is connected in-line with a lumen of the connection tube and a length of tubing runs from the air-port along the length of the connection tube with a connector at the proximal end configured to connect to a pressure transducer.Type: GrantFiled: March 31, 2017Date of Patent: March 31, 2020Assignee: NxStage Medical, Inc.Inventors: Jeffrey H. Burbank, James M. Brugger, Dennis M. Treu, Mark T. Wyeth
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Publication number: 20200061281Abstract: The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.Type: ApplicationFiled: July 18, 2017Publication date: February 27, 2020Applicant: NxStage Medical, Inc.Inventors: David DESOUZA, Daniel J. RUBERY, Jr., Dennis M. TREU, Mark T. WYETH, Jerome JAMES, Garrett D. CASEY, James M. BRUGGER, William J. SCHNELL, Jeffrey H. BURBANK, Goetz FRIEDERICHS
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Patent number: 10525182Abstract: The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.Type: GrantFiled: October 9, 2015Date of Patent: January 7, 2020Assignee: NxStage Medical, Inc.Inventors: Jeffrey H. Burbank, Dennis M. Treu, Daniel J. Rubery, Jr., Scott W. Newell, James M. Brugger, William J. Schnell, William K. Weigel, Steve A. White, Mark T. Wyeth, Jerome James, David Desouza, Joseph E. Turk, Jr., Garrett Casey
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Publication number: 20190262524Abstract: Methods, device, and systems for preparing peritoneal dialysis fluid and/or administering a peritoneal dialysis treatment are disclosed. In embodiments, peritoneal dialysis fluid is prepared at a point of use automatically using a daily sterile disposable fluid circuit and one or more long-term concentrate containers that are changed only after multiple days (e.g. weekly). The daily disposable may have concentrate containers that are initially empty and are filled from the long-term concentrate containers once per day at the beginning of a treatment.Type: ApplicationFiled: February 28, 2019Publication date: August 29, 2019Applicant: NxStage Medical, Inc.Inventors: Mark T. WYETH, Gregory YANTZ, Robert Paul MCCARTY
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Publication number: 20190262526Abstract: Methods, device, and systems for preparing peritoneal dialysis fluid and/or administering a peritoneal dialysis treatment are disclosed. In embodiments, peritoneal dialysis fluid is prepared at a point of use automatically using a daily sterile disposable fluid circuit and one or more long-term concentrate containers that are changed only after multiple days (e.g. weekly). The daily disposable may have concentrate containers that are initially empty and are filled from the long-term concentrate containers once per day at the beginning of a treatment.Type: ApplicationFiled: February 28, 2019Publication date: August 29, 2019Applicant: NxStage Medical, Inc.Inventors: Mark T. WYETH, Gregory YANTZ, Goetz FRIEDERICHS
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Publication number: 20190262525Abstract: Methods, device, and systems for preparing peritoneal dialysis fluid and/or administering a peritoneal dialysis treatment are disclosed. In embodiments, peritoneal dialysis fluid is prepared at a point of use automatically using a daily sterile disposable fluid circuit and one or more long-term concentrate containers that are changed only after multiple days (e.g. weekly). The daily disposable may have concentrate containers that are initially empty and are filled from the long-term concentrate containers once per day at the beginning of a treatment.Type: ApplicationFiled: February 28, 2019Publication date: August 29, 2019Applicant: NxStage Medical, Inc.Inventors: Mark T. WYETH, Gregory YANTZ
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Publication number: 20190262522Abstract: Methods, device, and systems for preparing peritoneal dialysis fluid and/or administering a peritoneal dialysis treatment are disclosed. In embodiments, peritoneal dialysis fluid is prepared at a point of use automatically using a daily sterile disposable fluid circuit and one or more long-term concentrate containers that are changed only after multiple days (e.g. weekly). The daily disposable may have concentrate containers that are initially empty and are filled from the long-term concentrate containers once per day at the beginning of a treatment.Type: ApplicationFiled: February 28, 2019Publication date: August 29, 2019Applicant: NxStage Medical, Inc.Inventors: MARK T. WYETH, Gregory YANTZ, Ciro A. de la VEGA
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Publication number: 20190240387Abstract: The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.Type: ApplicationFiled: April 11, 2019Publication date: August 8, 2019Applicant: NxStage Medical, Inc.Inventors: Jeffrey H. BURBANK, Dennis M. TREU, Daniel J. Rubery, JR., Scott W. NEWELL, James M. BRUGGER, William J. SCHNELL, William K. WEIGEL, Steven A. WHITE, Mark T. WYETH, Jerome JAMES, David DESOUZA, Joseph E. Turk, JR., Garrett CASEY
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Publication number: 20190231956Abstract: The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.Type: ApplicationFiled: April 11, 2019Publication date: August 1, 2019Applicant: NxStage Medical, Inc.Inventors: Jeffrey H. BURBANK, Dennis M. TREU, Daniel J. RUBERY, JR., Scott W. NEWELL, James M. BRUGGER, William J. SCHNELL, William K. WEIGEL, Steven A. WHITE, Mark T. WYETH, Jerome JAMES, David DESOUZA, Joseph E. TURK, JR., Garrett CASEY
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Publication number: 20190231958Abstract: The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.Type: ApplicationFiled: April 11, 2019Publication date: August 1, 2019Applicant: NxStage Medical, Inc.Inventors: Jeffrey H. BURBANK, Dennis M. TREU, Daniel J. RUBERY, JR., Scott W. NEWELL, James M. BRUGGER, William J. SCHNELL, William K. WEIGEL, Steven A. WHITE, Mark T. WYETH, Jerome JAMES, David DESOUZA, Joseph E. TURK, JR., Garrett CASEY
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Publication number: 20190231957Abstract: The disclosed subject matter relates to extracorporeal blood processing or other processing of fluids. Volumetric fluid balance, a required element of many such processes, may be achieved with multiple pumps or other proportioning or balancing devices which are to some extent independent of each other. This need may arise in treatments that involve multiple fluids. Safe and secure mechanisms to ensure fluid balance in such systems are described.Type: ApplicationFiled: April 11, 2019Publication date: August 1, 2019Applicant: NxStage Medical, Inc.Inventors: Jeffrey H. BURBANK, Dennis M. TREU, Daniel J. RUBERY, JR., Scott W. NEWELL, James M. BRUGGER, William J. SCHNELL, William K. WEIGEL, Steven A. WHITE, Mark T. WYETH, Jerome JAMES, David DESOUZA, Joseph E. TURK, JR., Garrett CASEY
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Publication number: 20190217000Abstract: A method of performing a dialysis treatment includes using a pump and a dialysate supply line to transport peritoneal dialysis fluid, the supply line having a proximal end into which peritoneal dialysis fluid is supplied and from which spend dialysate is withdrawn, and a distal end which is connected to a patient's peritoneal access. The method further includes generating proximal and distal pressure signals using pressure detectors located at both the proximal and distal ends, respectively, of said supply line. During a drain cycle in which spent dialysate is pumped from the patient, the method includes, responsively to the proximal and distal pressure signals, detecting a characteristic of a pressure difference between the distal and proximal ends whose magnitude is determined by a predicted change in dialysate properties, and responsively to the characteristic, generating a signal indicating the change in dialysate properties.Type: ApplicationFiled: March 21, 2019Publication date: July 18, 2019Applicant: NxStage Medical, Inc.Inventors: Jeffrey H. BURBANK, James M. BRUGGER, Dennis M. TREU, Mark T. WYETH
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Publication number: 20180256804Abstract: An automated peritoneal dialysis system provides both cycler-assisted peritoneal dialysis treatment. The system includes a fluid preparation and treatment device with concentrate dilution components connected to a source of purified water and medicament concentrate. The treatment device has at least one mixing container connected via a pump and valves to the sources, the valves and the pump mixing and diluting the concentrate to form a medicament. Conductivity sensors are provided for fluid quality measurement, calibration, error trapping, and fluid characterization.Type: ApplicationFiled: May 11, 2018Publication date: September 13, 2018Applicant: NxStage Medical, Inc.Inventors: Jeffrey H. BURBANK, James M. BRUGGER, Dennis M. TREU, Mark T. WYETH
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Patent number: 10046100Abstract: An automated peritoneal dialysis system provides various features including prescription-driven dialysis fluid preparation, an integrated disposable fluid circuit, and sensor capabilities that allow accurate filing and draining control with high safety margins. Features include a peritoneal fluid circuit with a pressure sensor at either end and methods and devices for using the pressure signals. Other features and embodiments are disclosed.Type: GrantFiled: January 7, 2017Date of Patent: August 14, 2018Assignee: NXSTAGE MEDICAL, INC.Inventors: Jeffrey H. Burbank, James M. Brugger, Dennis M. Treu, Mark T. Wyeth
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Publication number: 20180104400Abstract: An automated peritoneal dialysis system provides both cycler-assisted peritoneal dialysis treatment and also continuous ambulatory peritoneal dialysis (CAPD). The system includes a fluid preparation and treatment device with a concentrate dilution components connected to a source of purified water and medicament concentrate. The treatment device has at least one mixing container connected via a pump and valves to the sources, the valves and the pump mixing and diluting the concentrate to form a medicament. An auxiliary port is provided for attaching a CAPD container and for receiving medicament. A controller is programmed to control the fluid preparation and treatment device to implement one or more cycler-assisted peritoneal dialysis treatment cycles using medicament from the mixing container and also to control the preparation of additional dialysate at the end of the cycler-assisted peritoneal dialysis treatment cycles to dispense additional dialysate through the auxiliary port for use in CAPD.Type: ApplicationFiled: November 22, 2017Publication date: April 19, 2018Applicant: NxStage Medical, Inc.Inventors: Jeffrey H. BURBANK, James M. BRUGGER, Dennis M. TREU, Mark T. WYETH