Patents by Inventor Ralph H. Schriver
Ralph H. Schriver 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: 11278853Abstract: A method for controlling fluid ratio accuracy during a dual flow injection with a powered injection system is described.Type: GrantFiled: June 20, 2018Date of Patent: March 22, 2022Assignee: BAYER HEALTHCARE LLCInventors: Ralph H. Schriver, Andreas Maihoefer, James A. Dedig, Michael A. Spohn, Herbert M. Grubic, Michael J. Swantner, Adam Caruso
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Patent number: 10751465Abstract: A multi-fluid injector system and methods of operation thereof are presented. One embodiment of such a fluid injector system includes an automatic refill procedure for a fluid injector system comprising a fluid injector and an operably engaged syringe. The procedure includes the step of determining, using an electronic control device operably controlling the fluid injector system, whether a fluid injection procedure involving the syringe is impending. If the electronic control device determines that the fluid injection procedure is not impending, such that the automatic refill will not interfere with the fluid injection procedure, an automatic refill of the syringe is initiated.Type: GrantFiled: October 21, 2016Date of Patent: August 25, 2020Assignee: BAYER HEALTHCARE LLCInventors: Michael A. Riley, Ralph H. Schriver, William D. Barlow, Thomas P. Joyce, Andreas Maihoefer
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Patent number: 10589018Abstract: A multi-dose disposable fluid delivery system includes at least one fluid container, a multi-use fluid path set, and a plurality of single-use fluid path sets. The at least one fluid container has a connection port configured for fluidly connecting with a first end of the multi-use fluid path set. The second end of the multi-fluid path set is configured for fluidly connecting to a fluid injection apparatus. The plurality of single-use fluid path sets is connected in sequence to define a fluid path extending from a first single-use fluid path set to a last single- use fluid path set. Each of the plurality single-use fluid path sets has a first end and a second end. The first end of the first single-use fluid path set is configured for connecting to a delivery line. The second end of the last single-use fluid path set is configured for connecting to the injection apparatus.Type: GrantFiled: February 18, 2015Date of Patent: March 17, 2020Assignee: BAYER HEALTHCARE LLCInventors: Arthur E. Uber, III, Ralph H. Schriver, Barry L. Tucker, James A. Dedig
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Patent number: 10441716Abstract: The control device is used to control delivery of fluids from a multi-fluid delivery system during a medical injection procedure. The fluid delivery system includes an injector used to deliver injection fluids to a patient. The control device is operatively associated with the injector for controlling discrete flow rates of injection fluids delivered to the patient. The control device includes first and second actuators associated with the manual control device, and an electronic substrate disposed within the manual control device and having a conductive pattern. The first actuator is operatively associated with the conductive pattern. The conductive pattern includes a plurality of predetermined digital values corresponding to discrete flow rates of injection fluids to be delivered by the injector.Type: GrantFiled: January 8, 2018Date of Patent: October 15, 2019Assignee: BAYER HEALTHCARE LLCInventors: Ralph H. Schriver, Thomas P. Joyce, Michael Riley, William D. Barlow
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Patent number: 10441775Abstract: A bolus control device for use with an injection device includes a valve body having a proximal end opposite a distal end. The valve body defines a fluid channel therethrough to allow a passage of medical fluid from the proximal end to the distal end. A connector at the proximal end and is configured for connecting to a fluid inlet line. A connector subassembly at the distal end and is configured for connecting to a fluid outlet line. A compressible check valve is disposed within the fluid channel, such that the compressible check valve is adjustable to control a cracking pressure at which the compressible check valve closes.Type: GrantFiled: April 29, 2014Date of Patent: October 15, 2019Assignee: BAYER HEALTHCARE LLCInventors: Ralph H. Schriver, James A. Dedig
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Patent number: 10159788Abstract: An attachment device for connecting a fluid path set to a medical container includes a body having a pointed distal end configured for puncturing a membrane of the medical container and a proximal end configured for connecting to the fluid path set. The attachment device further includes a fluid channel extending along a longitudinal axis of the body between the distal end and the proximal end. The fluid channel is configured for delivering a medical fluid between the medical container and the fluid path set. At least one deflectable retaining element projects from the body of the attachment device between the distal end and the proximal end. The at least one retaining element is configured from non-removably retaining the attachment device with the medical container after the attachment device is connected to the medical container.Type: GrantFiled: May 1, 2014Date of Patent: December 25, 2018Assignee: BAYER HEALTHCARE LLCInventors: Ralph H. Schriver, James A. Dedig
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Patent number: 10124110Abstract: A fluid injector for use with at least one syringe has at least one injector head with a front end configured to releasably receive the at least one syringe. The fluid injector further includes at least one pressure jacket releasably associated with the front end of the at least one injector head for securing the at least one syringe during an injection procedure. A connection mechanism releasably connects the at least one pressure jacket to the front end of the at least one injector head. The connection mechanism includes at least one magnet. The at least one injector head has the at least one magnet while the at least one pressure jacket has a ferromagnetic material configured for magnetically interacting with the at least one magnet.Type: GrantFiled: October 17, 2014Date of Patent: November 13, 2018Assignee: BAYER HEALTHCARE LLCInventors: James A. Dedig, Ralph H. Schriver, Patrick B. Campbell, Herbert M. Grubic
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Publication number: 20180296993Abstract: A method for controlling fluid ratio accuracy during a dual flow injection with a powered injection system is described.Type: ApplicationFiled: June 20, 2018Publication date: October 18, 2018Inventors: RALPH H. SCHRIVER, ANDREAS MAIHOEFER, JAMES A. DEDIG, MICHAEL A. SPOHN, HERBERT M. GRUBIC, MICHAEL J. SWANTNER, ADAM CARUSO
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Patent number: 10029220Abstract: A fluid path set includes a first fluid line having a proximal end fluidly connectable to a source of a first fluid and a second fluid line having a proximal end fluidly connectable to a source of a second fluid. A flow mixing device is in fluid communication with distal ends of the first and second fluid lines. The flow mixing device includes a housing, a first fluid port provided for receiving the first fluid, and a second fluid port for receiving the second fluid. A mixing chamber is disposed within the housing and is in fluid communication with the first and second fluid ports. A third fluid port in fluid communication with the mixing chamber for discharging a mixed solution of the first and second fluids. A turbulent flow inducing member is disposed within the mixing chamber for promoting turbulent mixing of the first and second fluids.Type: GrantFiled: January 27, 2017Date of Patent: July 24, 2018Assignee: BAYER HEALTHCARE LLCInventors: Ralph H. Schriver, Andreas Maihoefer, James A. Dedig, Michael A. Spohn, Herbert M. Grubic, Michael J. Swantner, Adam Caruso
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Publication number: 20180147344Abstract: The control device is used to control delivery of fluids from a multi-fluid delivery system during a medical injection procedure. The fluid delivery system includes an injector used to deliver injection fluids to a patient. The control device is operatively associated with the injector for controlling discrete flow rates of injection fluids delivered to the patient. The control device includes first and second actuators associated with the manual control device, and an electronic substrate disposed within the manual control device and having a conductive pattern. The first actuator is operatively associated with the conductive pattern. The conductive pattern includes a plurality of predetermined digital values corresponding to discrete flow rates of injection fluids to be delivered by the injector.Type: ApplicationFiled: January 8, 2018Publication date: May 31, 2018Inventors: RALPH H. SCHRIVER, THOMAS P. JOYCE, MICHAEL RILEY, WILLIAM D. BARLOW
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Patent number: 9861742Abstract: The control device is used to control delivery of fluids from a multi-fluid delivery system during a medical injection procedure. The fluid delivery system includes an injector used to deliver injection fluids to a patient. The control device is operatively associated with the injector for controlling discrete flow rates of injection fluids delivered to the patient. The control device includes a housing, first and second actuators associated with the housing, and an electronic substrate disposed within the housing and having a conductive pattern. The first actuator is operatively associated with the conductive pattern. The conductive pattern includes a plurality of predetermined digital values corresponding to discrete flow rates of injection fluids to be delivered by the injector. The second actuator is operatively associated with the electronic substrate and initiates output signals to the injector corresponding to desired mixture ratios of the injection fluids to be delivered by the injector.Type: GrantFiled: April 15, 2015Date of Patent: January 9, 2018Assignee: BAYER HEALTHCARE LLCInventors: Ralph H. Schriver, Thomas P. Joyce, Michael Riley, William D. Barlow
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Publication number: 20170136424Abstract: A fluid path set includes a first fluid line having a proximal end fluidly connectable to a source of a first fluid and a second fluid line having a proximal end fluidly connectable to a source of a second fluid. A flow mixing device is in fluid communication with distal ends of the first and second fluid lines. The flow mixing device includes a housing, a first fluid port provided for receiving the first fluid, and a second fluid port for receiving the second fluid. A mixing chamber is disposed within the housing and is in fluid communication with the first and second fluid ports. A third fluid port in fluid communication with the mixing chamber for discharging a mixed solution of the first and second fluids. A turbulent flow inducing member is disposed within the mixing chamber for promoting turbulent mixing of the first and second fluids.Type: ApplicationFiled: January 27, 2017Publication date: May 18, 2017Inventors: RALPH H. SCHRIVER, ANDREAS MAIHOEFER, JAMES A. DEDIG, MICHAEL A. SPOHN, HERBERT M. GRUBIC, MICHAEL J. SWANTNER, ADAM CARUSO
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Publication number: 20170100577Abstract: The fluid delivery system includes a pressurizing device for delivering a pressurized injection fluid, a low pressure fluid delivery system, and a pressure isolation mechanism adapted for fluid communication with the pressurizing device and low pressure fluid delivery system. The pressure isolation mechanism includes a housing defining an inlet port, an isolation port, and an internal cavity. The housing defines a seal seat in the internal cavity between the inlet port and isolation port. A valve member is disposed in the internal cavity. The valve member is free floating in the internal cavity and is adapted to engage the seal seat. The valve member has an open position permitting fluid communication between the inlet port and isolation port, and is fluid flow responsive to fluid flow in the inlet port to engage the seal seat and attain a closed position preventing fluid flow between the inlet port and isolation port.Type: ApplicationFiled: December 20, 2016Publication date: April 13, 2017Inventors: MICHAEL A. SPOHN, JOHN A. HAURY, RALPH H. SCHRIVER
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Publication number: 20170049955Abstract: A multi-dose disposable fluid delivery system includes at least one fluid container, a multi-use fluid path set, and a plurality of single-use fluid path sets. The at least one fluid container has a connection port configured for fluidly connecting with a first end of the multi-use fluid path set. The second end of the multi-fluid path set is configured for fluidly connecting to a fluid injection apparatus. The plurality of single-use fluid path sets is connected in sequence to define a fluid path extending from a first single-use fluid path set to a last single- use fluid path set. Each of the plurality single-use fluid path sets has a first end and a second end. The first end of the first single-use fluid path set is configured for connecting to a delivery line. The second end of the last single-use fluid path set is configured for connecting to the injection apparatus.Type: ApplicationFiled: February 18, 2015Publication date: February 23, 2017Inventors: Arthur E. Uber, III, Ralph H. Schriver, Barry L. Tucker, James A. Dedig
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Publication number: 20170035959Abstract: A multi-fluid injector system and methods of operation thereof are presented. One embodiment of such a fluid injector system includes an automatic refill procedure for a fluid injector system comprising a fluid injector and an operably engaged syringe. The procedure includes the step of determining, using an electronic control device operably controlling the fluid injector system, whether a fluid injection procedure involving the syringe is impending. If the electronic control device determines that the fluid injection procedure is not impending, such that the automatic refill will not interfere with the fluid injection procedure, an automatic refill of the syringe is initiated.Type: ApplicationFiled: October 21, 2016Publication date: February 9, 2017Inventors: MICHAEL A. RILEY, RALPH H. SCHRIVER, WILLIAM D. BARLOW, THOMAS P. JOYCE, ANDREAS MAIHOEFER
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Patent number: 9555379Abstract: A fluid path set includes a first fluid line having a proximal end fluidly connectable to a source of a first fluid and a second fluid line having a proximal end fluidly connectable to a source of a second fluid. A flow mixing device is in fluid communication with distal ends of the first and second fluid lines. The flow mixing device includes a housing, a first fluid port provided for receiving the first fluid, and a second fluid port for receiving the second fluid. A mixing chamber is disposed within the housing and is in fluid communication with the first and second fluid ports. A third fluid port in fluid communication with the mixing chamber for discharging a mixed solution of the first and second fluids. A turbulent flow inducing member is disposed within the mixing chamber for promoting turbulent mixing of the first and second fluids.Type: GrantFiled: March 13, 2013Date of Patent: January 31, 2017Assignee: Bayer Healthcare LLCInventors: Ralph H Schriver, Andreas Maihoefer, James A Dedig, Michael A Spohn, Herbert M Grubic, Michael J Swantner, Adam Caruso
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Publication number: 20160367748Abstract: A fluid delivery system for use in medical procedures includes multiple fluid pump devices to deliver multiple injection fluids to a patient. The system includes a control unit controlling the fluid pump devices. An interactive visual display may be provided and electronically linked to the control unit so a user may select discrete mixture ratios of the first and the second of the multiple injection fluids to be delivered to the patient. A manual control device is operatively associated with the fluid pump devices and includes a housing and an actuator associated with the housing. Actuation of the actuator controls discrete flow rates of the selected discrete mixture ratio of the first and the second of the multiple injection fluids to the patient.Type: ApplicationFiled: September 2, 2016Publication date: December 22, 2016Inventors: RALPH H. SCHRIVER, MICHAEL RILEY
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Patent number: 9474857Abstract: A multi-fluid injector system and methods of operation thereof are presented. One embodiment of such a fluid injector system includes an automatic refill procedure for a fluid injector system comprising a fluid injector and an operably engaged syringe. The procedure includes the step of determining, using an electronic control device operably controlling the fluid injector system, whether a fluid injection procedure involving the syringe is impending. If the electronic control device determines that the fluid injection procedure is not impending, such that the automatic refill will not interfere with the fluid injection procedure, an automatic refill of the syringe is initiated.Type: GrantFiled: September 30, 2013Date of Patent: October 25, 2016Assignee: Bayer HealthCare LLCInventors: Michael A. Riley, Ralph H. Schriver, William D. Barlow, Thomas P. Joyce, Andreas Maihoefer
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Publication number: 20160296692Abstract: A system for injecting fluid to a patient is provided. The system provides manual or automatic verification and identification of the fluid to be injected, prior to, during or after injection. The system includes: a fluid having at least one active compound and at least one tracer compound; an injector configured to deliver the fluid to the patient through a fluid path set; at least one sensor coupled to at least one of the syringe, the injector, or the patient, configured to measure at least one property of the tracer in the fluid, and a feedback path to adjust at least one injection parameter of the injector based on at least one measurement from the at least one sensor.Type: ApplicationFiled: November 25, 2014Publication date: October 13, 2016Applicant: BAYER MEDICAL CARE INC.Inventors: Jacob Agris, III, Arthur E. Uber, III, Ralph H. Schriver, Evelina Zapatka, Michael A. Spohn
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Patent number: 9433730Abstract: A fluid delivery system for use in medical procedures includes multiple fluid pump devices to deliver multiple injection fluids to a patient. The system includes a control unit controlling the fluid pump devices. An interactive visual display may be provided and electronically linked to the control unit so a user may select discrete mixture ratios of the first and the second of the multiple injection fluids to be delivered to the patient. A manual control device is operatively associated with the fluid pump devices and includes a housing and an actuator associated with the housing. Actuation of the actuator controls discrete flow rates of the selected discrete mixture ratio of the first and the second of the multiple injection fluids to the patient.Type: GrantFiled: March 14, 2013Date of Patent: September 6, 2016Assignee: Bayer HealthCare LLCInventors: Ralph H Schriver, Michael Riley