Patents by Inventor Michael A. Spohn
Michael A. Spohn 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: 10022493Abstract: A fluid injection system including an injector head having a syringe for delivering a fluid to a patient, a mounting structure pivotally connected to the injector head and configured to support the injector head above a surface, and a control system operationally coupled to the injector head for controlling an injection procedure is disclosed. The fluid injection system is provided with sensors to control various aspects of the fluid injection system, such as the establishment of a reference plane, the determination of a tilt angle of the injector head, and the determination of a temperature of an actuation system of the injector head.Type: GrantFiled: May 11, 2012Date of Patent: July 17, 2018Assignee: BAYER HEALTHCARE LLCInventors: John D. Shearer, Jr., Christopher M. Scutt, Walter J. Grumski, Michael A. Spohn, Jarrell T. McWilliams, Arlie D. Long, III, Richard C. Morton
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Publication number: 20180169327Abstract: A system for delivering fluid to a patient including housing having at least one syringe port and a fluid control device adapted to interface with and actuate at least one syringe engaged therein. The fluid control device includes a processor configured to control a fluid delivery and to wirelessly communicate with one or more portable computers. The portable computer may be programmed or configured to receive one or more fluid delivery parameters from the fluid control device, a user interface, a patient records database, an imaging device, a second computer, a server, a wireless network, or a combination thereof and generate a display containing information pertaining to the fluid delivery parameter based at least partially on the received data. The fluid control device is further configured or programmed to execute one or more control options based at least partially on instructions received from the portable computer.Type: ApplicationFiled: May 25, 2016Publication date: June 21, 2018Inventors: Barry Iddon, Michael A. Spohn, Benjamin James Cullen, Alison Ruth von Moger, Johannes Christoph Behrisch, Peter John Sprada, Richard Sokolov
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Patent number: 9931041Abstract: A method of determining fractional flow reserve (FFR) in a blood vessel having stenosis includes injecting fluid into the blood vessel upstream of the stenosis using a power fluid injector, measuring pressure drop across the stenosis, and calculating FFR from measured pressure drop. The injected fluid may comprise a contrast medium. Further actions may include placing a pressure sensor proximal of the stenosis, injecting fluid into the blood vessel upstream of the stenosis using the power fluid injector, and measuring pressure in the blood vessel proximal of the stenosis. The pressure sensor may then be repositioned to a position distal of the stenosis, fluid may be reinjected into the blood vessel upstream of the stenosis using the power fluid injector, and pressure may be measured in the blood vessel distal of the stenosis.Type: GrantFiled: April 10, 2017Date of Patent: April 3, 2018Assignee: BAYER HEALTHCARE LLCInventors: Michael A. Riley, Michael A. Spohn, Gerald W. Callan
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Publication number: 20180064866Abstract: A pressure sensor for use with a fluid delivery system having good sensitivity at low pressure, but also configured to remain in operating condition after being exposed to high pressures is disclosed herein. In one variation, the pressure sensor includes a fluid path set, a deformable element associated with the fluid path set and configured to deform in response to an external pressure, and a pressure transducer for monitoring deformation of the deformable element. In certain embodiments, the pressure sensor is configured to measure fluid pressure within the range of between about 0 mm Hg to about 300 mm Hg. However, the sensor pressure is also be configured to remain functional after being exposed to pressure in excess of about 60,000 mm Hg.Type: ApplicationFiled: November 6, 2017Publication date: March 8, 2018Inventors: MICHAEL A. RILEY, GERALD W. CALLAN, MICHAEL A. SPOHN, MICHAEL J. SWANTNER
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Patent number: 9901725Abstract: A high pressure medical connector tubing assembly includes a high pressure medical connector tubing assembly, including a tube element having opposed tube ends and a passageway, an end element overmolded to at least one of the opposed tube ends, the end element having an annular end portion having a preselected length, and a connector element having a connector hub defining a receiving cavity. The preselected length of the annular end portion may be used to pre-control the axial location of stress concentration in the connector hub. A method of forming the high pressure medical connector tubing assembly includes providing a tube element comprising opposed tube ends and a passageway therethrough, overmolding an end element onto at least one of the opposed tube ends, providing a connector element comprising a connector hub defining a receiving cavity, and securing the tube end with the overmolded end element in the receiving cavity.Type: GrantFiled: October 1, 2012Date of Patent: February 27, 2018Assignee: BAYER HEALTHCARE LLCInventors: Michael A. Spohn, Cory J. Price, Andrew W. Meier
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Patent number: 9895527Abstract: A pressure isolation mechanism including a valve housing which defines a first lumen associated with a pressurizing device, a second lumen associated with an input line which connects a low pressure fluid delivery system to the valve housing, and a pressure isolation port is disclosed. The pressure isolation mechanism further includes a first valve having a normally open position permitting fluid communication between the first lumen and the second lumen and movable to a closed position when fluid pressure in the first lumen reaches a predetermined pressure level, and a second valve disposed within the second lumen and regulating fluid flow through the second lumen, wherein the second valve substantially isolates the input line from a pressure transducer connected to the pressure isolation port. A method for correcting for dampened hemodynamic blood pressure signals in a fluid delivery system which includes the pressure isolation mechanism is also described.Type: GrantFiled: March 30, 2015Date of Patent: February 20, 2018Assignee: BAYER HEALTHCARE LLCInventors: Michael A. Spohn, John A. Haury, Herbert M Grubic, James A. Dedig
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Publication number: 20180015274Abstract: A multi-use disposable set (MUDS) has at least one syringe having a proximal end and a distal end spaced apart from the proximal end along a longitudinal axis. The MUDS further has a plunger reciprocally movable within a syringe interior between the proximal end and the distal end. A manifold is in fluid communication with the distal end of the at least one syringe. At least one valve is in fluid communication with the syringe interior. The at least one valve is operable between a filling position for filling the syringe interior with fluid and a delivery position for delivering the fluid from the syringe interior. At least one connection port is in fluid communication with the manifold and the syringe interior when the at least one valve is in the delivery position. A multi-fluid delivery system having the medical convector and MUDS is also provided. Various features of the MUDS system are also described.Type: ApplicationFiled: January 7, 2016Publication date: January 18, 2018Inventors: John A. Haury, Michael Swantner, Richard Sokolov, Benjamin James Cullen, Alison Ruth Norcott, Ernesto Hueso Monis, Kamman Law, Mark Silvio Profaca, Patrick Spence, Brian E. Cain, Michael A. Spohn, Kevin P. Cowan, Justin Angert
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Patent number: 9839773Abstract: A high pressure medical connector tubing assembly includes a high pressure medical connector tubing assembly, including a tube element having opposed tube ends and a passageway, an end element overmolded to at least one of the opposed tube ends, the end element having an annular end portion having a preselected length, and a connector element having a connector hub defining a receiving cavity. The preselected length of the annular end portion may be used to pre-control the axial location of stress concentration in the connector hub. A method of forming the high pressure medical connector tubing assembly includes providing a tube element comprising opposed tube ends and a passageway therethrough, overmolding an end element onto at least one of the opposed tube ends, providing a connector element comprising a connector hub defining a receiving cavity, and securing the tube end with the overmolded end element in the receiving cavity.Type: GrantFiled: October 1, 2012Date of Patent: December 12, 2017Assignee: BAYER HEALTHCARE LLCInventors: Michael A. Spohn, Cory J. Price, Andrew W. Meier
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Publication number: 20170333619Abstract: A pressure jacket for use with a fluid injector includes a barrel having a distal end, a proximal end, and a sidewall extending between the distal end and the proximal end along a longitudinal axis. The pressure jacket includes at least one engagement member protruding from a terminal portion of the proximal end of the barrel in a proximal direction along the longitudinal axis. The at least one engagement member tapers axially in a direction from the distal end toward the proximal end of the barrel. The at least one engagement member engages with a locking mechanism on the fluid injector to releasably lock the pressure jacket with the fluid injector. A taper of the at least one engagement member rotationally guides the barrel into self-alignment with the locking mechanism and axially ejects the barrel upon rotation of the barrel about the longitudinal axis.Type: ApplicationFiled: October 28, 2015Publication date: November 23, 2017Inventors: KEVIN P. COWAN, BARRY L. TUCKER, ARTHUR E. UBER, III, EDWARD J. RHINEHART, MICHAEL A. SPOHN, JAMES R. NEILL, GLEN P. WILLIAMS
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Publication number: 20170333624Abstract: A pressure jacket includes a barrel having a proximal end, a distal end, and a sidewall extending substantially circumferentially between the proximal end and the distal end along a longitudinal axis. The pressure jacket also includes at least one retaining member having at least one first lug protruding radially outward relative to an outer surface of the sidewall. The at least one first lug has at least one third surface tapered axially relative to the longitudinal axis of the barrel in a proximal direction. The at least one first lug is configured for engagement with a locking mechanism associated with a port on a fluid injector to releasably lock the pressure jacket with the fluid injector. At least a portion of the at least one third surface axially ejects the pressure jacket upon rotation of the pressure jacket about the longitudinal axis.Type: ApplicationFiled: October 28, 2015Publication date: November 23, 2017Inventors: BARRY L. TUCKER, KEVIN P. COWAN, ARTHUR E. UBER, III, EDWARD J. RHINEHART, MICHAEL A. SPOHN
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Patent number: 9808571Abstract: A pressure sensor for use with a fluid delivery system having good sensitivity at low pressure, but also configured to remain in operating condition after being exposed to high pressures is disclosed herein. In one variation, the pressure sensor includes a fluid path set, a deformable element associated with the fluid path set and configured to deform in response to an external pressure, and a pressure transducer for monitoring deformation of the deformable element. In certain embodiments, the pressure sensor is configured to measure fluid pressure within the range of between about 0 mm Hg to about 300 mm Hg. However, the sensor pressure is also be configured to remain functional after being exposed to pressure in excess of about 60,000 mm Hg.Type: GrantFiled: November 3, 2016Date of Patent: November 7, 2017Assignee: BAYER HEALTHCARE LLCInventors: Michael A. Riley, Gerald W. Callan, Michael A. Spohn, Michael J. Swantner
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Publication number: 20170304529Abstract: A medical injector including at least one syringe port for engaging at least one syringe and having a locking mechanism. The locking mechanism enables the syringe to self-align with the syringe port for locking engagement upon insertion of the syringe into the syringe port and to axially eject the syringe from the port upon rotational disengagement of the syringe from the port.Type: ApplicationFiled: July 7, 2017Publication date: October 26, 2017Inventors: BARRY L. TUCKER, KEVIN P. COWAN, ARTHUR E. UBER, III, EDWARD J. RHINEHART, MICHAEL A. SPOHN
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Publication number: 20170290993Abstract: A fluid injection system and a fluid verification system for confirming that a syringe, containing a fluid for injection, is fully filled with fluid and neither has free space (i.e., air) near the distal end thereof when the syringe is provided in an upright position nor contains air bubbles. Imaging processing techniques and systems are also provided to determine various injection parameters and to verify the type and certain properties of fluid that is present within a syringe.Type: ApplicationFiled: June 27, 2017Publication date: October 12, 2017Inventors: Kevin P. Cowan, Michael A. Spohn, Michael McDermott, Herbert M. Grubic
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Publication number: 20170273572Abstract: A method of determining fractional flow reserve (FFR) in a blood vessel having stenosis includes injecting fluid into the blood vessel upstream of the stenosis using a power fluid injector, measuring pressure drop across the stenosis, and calculating FFR from measured pressure drop. The injected fluid may comprise a contrast medium. Further actions may include placing a pressure sensor proximal of the stenosis, injecting fluid into the blood vessel upstream of the stenosis using the power fluid injector, and measuring pressure in the blood vessel proximal of the stenosis. The pressure sensor may then be repositioned to a position distal of the stenosis, fluid may be reinjected into the blood vessel upstream of the stenosis using the power fluid injector, and pressure may be measured in the blood vessel distal of the stenosis.Type: ApplicationFiled: April 10, 2017Publication date: September 28, 2017Inventors: MICHAEL A. RILEY, MICHAEL A. SPOHN, GERALD W. CALLAN
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Patent number: 9700670Abstract: A syringe includes a barrel having a proximal end, a distal end, and a sidewall extending between the proximal end and the distal end along a longitudinal axis. At least one syringe retaining member protrudes radially outwardly relative to an outer surface of the sidewall. The at least one syringe retaining member tapers axially in a direction from the distal end toward the proximal end. The at least one syringe retaining member is configured for selective engagement with a locking mechanism on a fluid injector to releasably lock the syringe with the fluid injector. A taper of the at least one syringe retaining member is configured to rotationally guide the syringe into alignment with the locking mechanism.Type: GrantFiled: October 30, 2015Date of Patent: July 11, 2017Assignee: BAYER HEALTHCARE LLCInventors: Barry L. Tucker, Kevin P. Cowan, Arthur E. Uber, III, Edward J. Rhinehart, Michael A. Spohn
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Patent number: 9669206Abstract: A fluid path set and method of use thereof is disclosed. The fluid path set includes a multi-patient fluid path section adapted for fluid connection to at least one pressurizing device, a per-patient fluid path section adapted for fluid connection with a patient, and a connector for removably and fluidly connecting the multi-patient fluid path section with the per-patient fluid path section. The connector includes a first connector member having an outer housing member and a first luer member recessed within the outer housing member, and a second connector member having a second threaded member and a second luer member recessed within the second threaded member. The first luer member and the second threaded member cooperate to securely and releasably connect the first connector member with the second connector member to establish removable fluid connection between the multi-patient fluid path section and the per-patient fluid path section.Type: GrantFiled: August 12, 2014Date of Patent: June 6, 2017Assignee: BAYER HEALTHCARE LLCInventors: Michael A. Spohn, Michael J. Swantner
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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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Patent number: 9615755Abstract: A method of determining fractional flow reserve (FFR) in a blood vessel having stenosis includes injecting fluid into the blood vessel upstream of the stenosis using a power fluid injector, measuring pressure drop across the stenosis, and calculating FFR from measured pressure drop. The injected fluid may comprise a contrast medium. Further action may include placing a pressure sensor proximal of the stenosis, injecting fluid into the blood vessel upstream of the stenosis using the power fluid injector, and measuring pressure in the blood vessel proximal of the stenosis. The pressure sensor may then be repositioned to a position distal of the stenosis, fluid may be reinjected into the blood vessel upstream of the stenosis using the power fluid injector, and pressure may be measured in the blood vessel distal of the stenosis.Type: GrantFiled: April 13, 2016Date of Patent: April 11, 2017Assignee: BAYER HEALTHCARE LLCInventors: Michael A. Riley, Michael A. Spohn, Gerald W. Callan
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Publication number: 20170072131Abstract: A pressure sensor for use with a fluid delivery system having good sensitivity at low pressure, but also configured to remain in operating condition after being exposed to high pressures is disclosed herein. In one variation, the pressure sensor includes a fluid path set, a deformable element associated with the fluid path set and configured to deform in response to an external pressure, and a pressure transducer for monitoring deformation of the deformable element. In certain embodiments, the pressure sensor is configured to measure fluid pressure within the range of between about 0 mm Hg to about 300 mm Hg. However, the sensor pressure is also be configured to remain functional after being exposed to pressure in excess of about 60,000 mm Hg.Type: ApplicationFiled: November 3, 2016Publication date: March 16, 2017Inventors: MICHAEL A. RILEY, GERALD W. CALLAN, MICHAEL A. SPOHN, MICHAEL J. SWANTNER