Patents by Inventor Bradley J. Sargent
Bradley J. Sargent 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: 20230405303Abstract: Catheter blood pumps with an inlet cage, cannula, impeller assembly and a multiple lumen shaft that is coupled to a that provides connectors that connect to external components. First and second fiberoptic pressure sensors extend inside and along a length of the multi-lumen catheter. The first fiberoptic pressure sensor is longer than the second fiberoptic pressure sensor and extends longitudinally distal to the multi-lumen catheter to terminate at a distal end portion of the cannula, proximal to the inlet cage. The sensor heads of the first fiberoptic pressure sensor and the second fiberoptic pressure sensor are exposed to local environmental conditions. The sensor head of the second fiberoptic pressure sensor can terminate proximal to the impeller cage windows. A pressure differential identified by a difference in pressure provided by the first and second fiberoptic pressure sensors can be used to confirm proper placement during intravascular placement into the heart.Type: ApplicationFiled: June 15, 2023Publication date: December 21, 2023Inventors: Andrew J. Boyce, Bradley J. Sargent, Peter G. Piferi
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Publication number: 20200353419Abstract: The present disclosure is directed to cross-flow membrane emulsification devices. The devices disclosed herein can have a continuous phase plate, a dispersed phase plate, an outlet, and a chamber. The chamber is located between the continuous phase plate and the dispersed phase plate and is bisected by a membrane with a plurality of pores. The chamber can include at least one channel on a first side of the membrane formed from at least one groove in the continuous phase plate and the membrane. In addition, the chamber can also include a cavity on a second side of the membrane formed in the dispersed phase plate.Type: ApplicationFiled: November 21, 2018Publication date: November 12, 2020Applicant: Dauntless 1, Inc.Inventors: Olivier LAURENT, Joel F. MARTIN, Bradley J. SARGENT, Andrew SCHERER, Brian MCMANUS
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Publication number: 20160116381Abstract: Provided herein are apparatuses for introducing a liquid over a sample of interest (e.g., a sample on a swab), and related systems and methods utilizing such apparatuses (e.g., microfluidic analyses).Type: ApplicationFiled: October 23, 2015Publication date: April 28, 2016Inventors: Steven G. Haupt, Steven A. Hofstadler, Thomas N. Chiesl, Bradley J. Sargent
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Publication number: 20150241319Abstract: The present disclosure relates to a swab port device. In particular, the present disclosure relates to swab port device that interfaces a swab to a microfluidic device, methods of bonding the swab port to the device, methods of recirculating liquid over the swab, and an enclosure system to seal the device.Type: ApplicationFiled: September 26, 2013Publication date: August 27, 2015Inventors: Thomas N. Chiesl, Steven G. Haupt, Ronald K. Bergold, Bradley J. Sargent, Steven A. Hofstadler
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Patent number: 8313467Abstract: Various embodiments of the present invention are directed to equalizing pressure in a reservoir containing fluidic media, possibly due to imperfect installation of the reservoir or an external influence such as an altitude or a temperature change. In various embodiments, fluidic media may be expelled from the reservoir through a needle and contained in an interior volume of a pierceable member before the needle pierces the pierceable member to establish a flow path to a user. In other embodiments, fluidic media may be expelled through a port of the reservoir into a chamber. In further embodiments, fluidic media may be expelled through a channel in a plunger head and out a passage in the reservoir when the channel and passage are aligned. In other embodiments, fluidic media may be expelled through a valve, and the valve may be pierceable by a needle to establish a flow path to the user.Type: GrantFiled: December 27, 2007Date of Patent: November 20, 2012Assignee: Medtronic MiniMed, Inc.Inventors: Colin A. Chong, Rafael Bikovsky, Julian D. Kavazov, Eric M. Lorenzen, Bradley J. Sargent, Andrew J. Scherer, Rex O. Bare
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Patent number: 8128576Abstract: An implantable urodynamic system includes an implantable first device deployable in a patient's bladder, an implantable second device deployable in a patient's vaginal canal, and a data acquisition and analysis module or processing unit external to the body of the patient. The first device includes a magnet and an inductive coil, and the second device includes a magnet, an inductive coil and a battery. When deployed in the patient's body, attraction between the magnets maintains the two devices in close proximity to one another to effect an inductive coupling between the coils so that the first device may be powered by the battery of the second device. The urodynamic system is intended to facilitate measurement, collection, and wireless transmission of real-time, or near real-time, data (bladder pressure, abdominal pressure, and temperature) from an ambulatory patient.Type: GrantFiled: December 7, 2006Date of Patent: March 6, 2012Assignee: Ethicon, Inc.Inventors: Michael R. Tracey, Anthony DiUbaldi, Stephen Wahlgren, Rex O. Bare, Bradley J. Sargent
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Patent number: 7730887Abstract: A portable gas fractionalization apparatus that provides oxygen rich air to patients is provided. The apparatus is compact, lightweight, and low-noise. The components are assembled in a housing that is divided into two compartments. One compartment is maintained at a lower temperature than the other compartment. The lower temperature compartment is configured for mounting components that can be damaged by heat. The higher temperature compartment is configured for mounting heat generating components. An air stream is directed to flow from an ambient air inlet to an air outlet constantly so that there is always a fresh source of cooling air. The apparatus utilizes a PSA unit to produce an oxygen enriched product. The PSA unit incorporates a novel single ended column design in which all flow paths and valves can be co-located on a single integrated manifold. The apparatus also can be used in conjunction with a satellite conserver and a mobility cart.Type: GrantFiled: October 30, 2007Date of Patent: June 8, 2010Assignee: Inogen, Inc.Inventors: Geoffrey Frank Deane, Brenton Alan Taylor, Rex O. Bare, Andrew J. Scherer, Bradley J. Sargent, Andrew J. March, Joseph E. Merchant, Jeffrey C. Smith
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Publication number: 20090171324Abstract: Various embodiments of the present invention are directed to equalizing pressure in a reservoir containing fluidic media, possibly due to imperfect installation of the reservoir or an external influence such as an altitude or a temperature change. In various embodiments, fluidic media may be expelled from the reservoir through a needle and contained in an interior volume of a pierceable member before the needle pierces the pierceable member to establish a flow path to a user. In other embodiments, fluidic media may be expelled through a port of the reservoir into a chamber. In further embodiments, fluidic media may be expelled through a channel in a plunger head and out a passage in the reservoir when the channel and passage are aligned. In other embodiments, fluidic media may be expelled through a valve, and the valve may be pierceable by a needle to establish a flow path to the user.Type: ApplicationFiled: December 27, 2007Publication date: July 2, 2009Inventors: Colin A. Chong, Rafael Bikovsky, Julian D. Kavazov, Eric M. Lorenzen, Bradley J. Sargent, Andrew J. Scherer, Rex O. Bare
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Publication number: 20080139875Abstract: An implantable urodynamic system includes an implantable first device deployable in a patient's bladder, an implantable second device deployable in a patient's vaginal canal, and a data acquisition and analysis module or processing unit external to the body of the patient. The first device includes a magnet and an inductive coil, and the second device includes a magnet, an inductive coil and a battery. When deployed in the patient's body, attraction between the magnets maintains the two devices in close proximity to one another to effect an inductive coupling between the coils so that the first device may be powered by the battery of the second device. The urodynamic system is intended to facilitate measurement, collection, and wireless transmission of real-time, or near real-time, data (bladder pressure, abdominal pressure, and temperature) from an ambulatory patient.Type: ApplicationFiled: December 7, 2006Publication date: June 12, 2008Inventors: Michael R. Tracey, Anthony DiUbaldi, Stephen Wahlgren, Rex O. Bare, Bradley J. Sargent
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Patent number: 7135059Abstract: A portable gas fractionalization apparatus that provides oxygen rich air to patients is provided. The apparatus is compact, lightweight, and low-noise. The components are assembled in a housing that is divided into two compartments. One compartment is maintained at a lower temperature than the other compartment. The lower temperature compartment is configured for mounting components that can be damaged by heat. The higher temperature compartment is configured for mounting heat generating components. An air stream is directed to flow from an ambient air inlet to an air outlet constantly so that there is always a fresh source of cooling air. The apparatus utilizes a PSA unit to produce an oxygen enriched product. The PSA unit incorporates a novel single ended column design in which all flow paths and valves can be co-located on a single integrated manifold. The apparatus also can be used in conjunction with a satellite conserver and a mobility cart.Type: GrantFiled: October 7, 2003Date of Patent: November 14, 2006Assignee: Inogen, Inc.Inventors: Geoffrey Frank Deane, Brenton Alan Taylor, Rex O. Bare, Bradley J. Sargent, Andrew J. Scherer
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Publication number: 20040133166Abstract: An occlusion detection system detects an occlusion in a fluid path of an infusion pump. The infusion pump is for delivering fluid to a user. The infusion pump includes a housing, a motor, a reservoir, one or more drive train components, a sensor, and an electronics system. The motor is contained within the housing. The reservoir contains the fluid to be delivered. The one or more drive train components react to stimulus from the motor to force the fluid from the reservoir into the user. The sensor is positioned to measure a parameter associated with the motor or a drive train component, and the sensor produces three or more output levels across a range of measurements. The electronics system processes the sensor output levels to declare when an occlusion exists.Type: ApplicationFiled: October 14, 2003Publication date: July 8, 2004Applicant: MINIMED INC.Inventors: Sheldon B. Moberg, James D. Causey, Rex O. Bare, Andrew J. Scherer, Bradley J. Sargent
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Patent number: 6659980Abstract: An occlusion detection system detects an occlusion in a fluid path of an infusion pump. The infusion pump is for delivering fluid to a user. The infusion pump includes a housing, a motor, a reservoir, one or more drive train components, a sensor, and an electronics system. The motor is contained within the housing. The reservoir contains the fluid to be delivered. The one or more drive train components react to stimulus from the motor to force the fluid from the reservoir into the user. The sensor is positioned to measure a parameter associated with the motor or a drive train component, and the sensor produces three or more output levels across a range of measurements. The electronics system processes the sensor output levels to declare when an occlusion exists.Type: GrantFiled: November 22, 2002Date of Patent: December 9, 2003Inventors: Sheldon B. Moberg, James D. Causey, III, Rex O. Bare, Andrew J. Scherer, Bradley J. Sargent
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Publication number: 20030073954Abstract: An occlusion detection system detects an occlusion in a fluid path of an infusion pump. The infusion pump is for delivering fluid to a user. The infusion pump includes a housing, a motor, a reservoir, one or more drive train components, a sensor, and an electronics system. The motor is contained within the housing. The reservoir contains the fluid to be delivered. The one or more drive train components react to stimulus from the motor to force the fluid from the reservoir into the user. The sensor is positioned to measure a parameter associated with the motor or a drive train component, and the sensor produces three or more output levels across a range of measurements. The electronics system processes the sensor output levels to declare when an occlusion exists.Type: ApplicationFiled: November 22, 2002Publication date: April 17, 2003Applicant: MINIMED INC.Inventors: Sheldon B. Moberg, James D. Causey, Rex O. Bare, Andrew J. Scherer, Bradley J. Sargent
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Patent number: 6485465Abstract: An occlusion detection system detects an occlusion in a fluid path of an infusion pump. The infusion pump is for delivering fluid to a user. The infusion pump includes a housing, a motor, a reservoir, one or more drive train components, a sensor, and an electronics system. The motor is contained within the housing. The reservoir contains the fluid to be delivered. The one or more drive train components react to stimulus from the motor to force the fluid from the reservoir into the user. The sensor is positioned to measure a parameter associated with the motor or a drive train component, and the sensor produces three or more output levels across a range of measurements. The electronics system processes the senor output levels to declare when an occlusion exists.Type: GrantFiled: March 27, 2001Date of Patent: November 26, 2002Assignee: Medtronic MiniMed, Inc.Inventors: Sheldon B. Moberg, James D. Causey, III, Rex O. Bare, Andrew J. Scherer, Bradley J. Sargent
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Publication number: 20010034502Abstract: An occlusion detection system detects an occlusion in a fluid path of an infusion pump. The infusion pump is for delivering fluid to a user. The infusion pump includes a housing, a motor, a reservoir, one or more drive train components, a sensor, and an electronics system. The motor is contained within the housing. The reservoir contains the fluid to be delivered. The one or more drive train components react to stimulus from the motor to force the fluid from the reservoir into the user. The sensor is positioned to measure a parameter associated with the motor or a drive train component, and the sensor produces three or more output levels across a range of measurements. The electronics system processes the senor output levels to declare when an occlusion exists.Type: ApplicationFiled: March 27, 2001Publication date: October 25, 2001Inventors: Sheldon B. Moberg, James D. Causey, Rex O. Bare, Andrew J. Scherer, Bradley J. Sargent