Patents by Inventor Marcus Julian
Marcus Julian 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: 20240115314Abstract: Provided herein are systems, devices, and methods for performing a medical procedure on a patient. The system comprises an ablation catheter comprising a shaft, at least one therapeutic element positioned on the shaft, and one or more tissue-contact sensing components configured to provide a contact signal related to the level of contact between the at least one therapeutic element and tissue. The system further comprises: an energy delivery unit configured to deliver ablative energy to the at least one therapeutic element to create a lesion in target tissue, and to provide an energy delivery data; a force module configured to receive the contact signal and provide contact data; and a processing unit configured to determine an ablation index based on both the energy delivery data and the contact data. The ablation index can represent the status of the lesion being created.Type: ApplicationFiled: February 17, 2022Publication date: April 11, 2024Inventors: Ahmad FALAHATPISHEH, Steven YON, Xinwei SHI, Haizhe ZHANG, Derrick CHOU, Timothy CORVI, Graydon Earnest BEATTY, Daniel WELSH, Alexander HIGGINS, Marcus JULIAN, R. Maxwell FLAHERTY, J. Christopher FLAHERTY
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Publication number: 20230048656Abstract: A system comprises a catheter configured for delivery to a body cavity defined by surrounding tissue; a plurality of ultrasound transducers coupled to a distal end of the catheter; and an electronics module configured to selectively turn on/off each ultrasound transducer according to a predetermined activation sequence and to process signals received from each ultrasound transducer to produce at least a 2D display of the surrounding tissue. A user can selectively calculate and display various aspects of cardiac activity. The user can display Dipole Density (DDM), Charge Density (CDM), or Voltage (V-V). The shape and location of the chamber (surface), and the potentials recorded at electrodes can be displayed. The system can also change back and forth between the different display modes, and with post processing tools, can change how various types of information is displayed. Methods are also provided.Type: ApplicationFiled: May 3, 2022Publication date: February 16, 2023Inventors: Derrick R. Chou, Graydon E. Beatty, Marcus Julian, Timothy J. Corvi, J. Christopher Flaherty, R. Maxwell Flaherty
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Publication number: 20220273944Abstract: Provided herein are systems for stimulating cardiac tissue of a patient. The systems include: a pulse generator having a first transmission element for delivering wireless power; a stimulation assembly having a flexible substrate, a second transmission element for receiving the wireless power from the first transmission element of the pulse generator, one or more electrodes attached to the substrate for delivering electrical energy to cardiac tissue, and one or more microcircuits attached to the substrate for delivering electrical energy to the one or more electrodes; and an algorithm having a fibrillation detection algorithm for determining when the one or more electrodes deliver the energy to the cardiac tissue.Type: ApplicationFiled: September 4, 2020Publication date: September 1, 2022Inventors: Randell L. Werneth, David Zarbatany, Ricardo David Roman, Marcus Julian, R. Maxwell Flaherty, J. Christopher Flaherty
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Patent number: 11344366Abstract: A system comprises a catheter configured for delivery to a body cavity defined by surrounding tissue; a plurality of ultrasound transducers coupled to a distal end of the catheter; and an electronics module configured to selectively turn on/off each ultrasound transducer according to a predetermined activation sequence and to process signals received from each ultrasound transducer to produce at least a 2D display of the surrounding tissue. A user can selectively calculate and display various aspects of cardiac activity. The user can display Dipole Density (DDM), Charge Density (CDM), or Voltage (V-V). The shape and location of the chamber (surface), and the potentials recorded at electrodes can be displayed. The system can also change back and forth between the different display modes, and with post processing tools, can change how various types of information is displayed. Methods are also provided.Type: GrantFiled: May 12, 2016Date of Patent: May 31, 2022Assignee: ACUTUS MEDICAL, INC.Inventors: Derrick R. Chou, Graydon E. Beatty, Marcus Julian, Timothy J. Corvi, J. Christopher Flaherty, R. Maxwell Flaherty
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Patent number: 10653828Abstract: A portable medical device includes an interface for accepting a power supply and enabling data transfer while still connected to a human body. The interface may include a universal serial bus interface and may be coupled to a data isolation chip and a power isolation chip. A power controlling processor may determine how the supplied power, e.g., voltage, is supplied to other components within the infusion device. Additional circuitry within the system may provide a secure power transfer within the device to ensure user safety and ensure that a high frequency noise is properly attenuated.Type: GrantFiled: August 14, 2017Date of Patent: May 19, 2020Assignee: Tandem Diabetes Care, Inc.Inventors: Justin Brown, Donald Ludolph, Phil Lamb, Anthony Barghini, Sean Saint, Marcus Julian, Robert Eastridge, Michael Rosinko, Michael Michaud
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Publication number: 20180146948Abstract: A system comprises a catheter configured for delivery to a body cavity defined by surrounding tissue; a plurality of ultrasound transducers coupled to a distal end of the catheter; and an electronics module configured to selectively turn on/off each ultrasound transducer according to a predetermined activation sequence and to process signals received from each ultrasound transducer to produce at least a 2D display of the surrounding tissue. A user can selectively calculate and display various aspects of cardiac activity. The user can display Dipole Density (DDM), Charge Density (CDM), or Voltage (V-V). The shape and location of the chamber (surface), and the potentials recorded at electrodes can be displayed. The system can also change back and forth between the different display modes, and with post processing tools, can change how various types of information is displayed. Methods are also provided.Type: ApplicationFiled: May 12, 2016Publication date: May 31, 2018Inventors: Derrick R. Chou, Graydon E. Beatty, Marcus Julian, Timothy J. Corvi, J. Christopher Flaherty, R. Maxwell Flaherty
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Publication number: 20180055996Abstract: A portable medical device includes an interface for accepting a power supply and enabling data transfer while still connected to a human body. The interface may include a universal serial bus interface and may be coupled to a data isolation chip and a power isolation chip. A power controlling processor may determine how the supplied power, e.g., voltage, is supplied to other components within the infusion device. Additional circuitry within the system may provide a secure power transfer within the device to ensure user safety and ensure that a high frequency noise is properly attenuated.Type: ApplicationFiled: August 14, 2017Publication date: March 1, 2018Inventors: Justin Brown, Donald Ludolph, Phil Lamb, Anthony Barghini, Sean Saint, Marcus Julian, Robert Eastridge, Michael Rosinko, Michael Michaud
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Patent number: 9843741Abstract: A hybrid pixel sensor array is provided. Each pixel of the array comprises: a sensor for generating an imaging signal; a Charged-Coupled Device (CCD) array, coupled to the sensor so as to receive samples from the imaging signal and configured for storage of a plurality of samples; and active CMOS circuitry, coupled to the CCD array for generating a pixel output signal from the stored samples. The sensors of the pixels are part of a sensor portion of the hybrid pixel sensor array that is separate from both the CCD array and active CMOS circuitry of the pixels.Type: GrantFiled: November 28, 2014Date of Patent: December 12, 2017Assignee: THE SCIENCE AND TECHNOLOGY FACILITIES COUNCILInventors: Marcus Julian French, Matthew Charles Veale
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Patent number: 9750873Abstract: A portable medical device includes an interface for accepting a power supply and enabling data transfer while still connected to a human body. The interface may include a universal serial bus interface and may be coupled to a data isolation chip and a power isolation chip. A power controlling processor may determine how the supplied power, e.g., voltage, is supplied to other components within the infusion device. Additional circuitry within the system may provide a secure power transfer within the device to ensure user safety and ensure that a high frequency noise is properly attenuated.Type: GrantFiled: June 16, 2016Date of Patent: September 5, 2017Assignee: Tandem Diabetes Care, Inc.Inventors: Justin Brown, Donald Ludolph, Philip Lamb, Anthony Barghini, Sean Saint, Marcus Julian, Robert Eastridge, Michael Rosinko, Michael Michaud
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Publication number: 20170006236Abstract: A hybrid pixel sensor array is provided. Each pixel of the array comprises: a sensor for generating an imaging signal; a Charged-Coupled Device (CCD) array, coupled to the sensor so as to receive samples from the imaging signal and configured for storage of a plurality of samples; and active CMOS circuitry, coupled to the CCD array for generating a pixel output signal from the stored samples. The sensors of the pixels are part of a sensor portion of the hybrid pixel sensor array that is separate from both the CCD array and active CMOS circuitry of the pixels.Type: ApplicationFiled: November 28, 2014Publication date: January 5, 2017Inventors: Marcus Julian FRENCH, Matthew Charles VEALE
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Publication number: 20160287782Abstract: A portable medical device includes an interface for accepting a power supply and enabling data transfer while still connected to a human body. The interface may include a universal serial bus interface and may be coupled to a data isolation chip and a power isolation chip. A power controlling processor may determine how the supplied power, e.g., voltage, is supplied to other components within the infusion device. Additional circuitry within the system may provide a secure power transfer within the device to ensure user safety and ensure that a high frequency noise is properly attenuated.Type: ApplicationFiled: June 16, 2016Publication date: October 6, 2016Inventors: Justin Brown, Donald Ludolph, Philip Lamb, Anthony Barghini, Sean Saint, Marcus Julian, Robert Eastridge, Michael Rosinko, Michael Michaud
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Patent number: 9381297Abstract: A portable medical device includes an interface for accepting a power supply and enabling data transfer while still connected to a human body. The interface may include a universal serial bus interface and may be coupled to a data isolation chip and a power isolation chip. A power controlling processor may determine how the supplied power, e.g., voltage, is supplied to other components within the infusion device. Additional circuitry within the system may provide a secure power transfer within the device to ensure user safety and ensure that a high frequency noise is properly attenuated.Type: GrantFiled: March 14, 2013Date of Patent: July 5, 2016Assignee: Tandem Diabetes Care, Inc.Inventors: Justin Brown, Donald Ludolph, Philip Lamb, Anthony Barghini, Sean Saint, Marcus Julian, Robert Eastridge, Michael Rosinko, Michael Michaud
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Publication number: 20130331790Abstract: A portable medical device includes an interface for accepting, a power supply and enabling data transfer while still connected to a human body. The interface may include a universal serial bus interface and may be coupled to a data isolation chip and a power isolation chip. A power controlling processor may determine how the supplied power, e.g., voltage, is supplied to other components within the infusion device. Additional circuitry within the system may provide a secure power transfer within the device to ensure user safety and ensure that a high frequency noise is properly attenuated.Type: ApplicationFiled: March 14, 2013Publication date: December 12, 2013Applicant: Tandem Diabetes Care, Inc.Inventors: Justin Brown, Donald Ludolph, Philip Lamb, Anthony Barghini, Sean Saint, Marcus Julian, Robert Eastridge, Michael Roisinko, Michael Michaud
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Patent number: 7623916Abstract: An illustrative embodiment includes an implantable cardiac stimulus device comprising input circuitry configured to reduce the time required to return to small signal operation after a disturbance of small signal operation. In another illustrative embodiment, the present invention includes methods for operating an implantable cardiac stimulus device to reduce the time required to return to small signal operation after a disturbance of small signal operation. In yet additional embodiments, the initiation of small signal operation after a change in sensing vector and/or after delivery of a stimulus to the patient is improved by the inclusion of input circuitry and/or the use of methods adapted to reduce the time needed to reach small signal operation.Type: GrantFiled: December 20, 2006Date of Patent: November 24, 2009Assignee: Cameron Health, Inc.Inventor: Marcus Julian
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Publication number: 20080154350Abstract: An illustrative embodiment includes an implantable cardiac stimulus device comprising input circuitry configured to reduce the time required to return to small signal operation after a disturbance of small signal operation. In another illustrative embodiment, the present invention includes methods for operating an implantable cardiac stimulus device to reduce the time required to return to small signal operation after a disturbance of small signal operation. In yet additional embodiments, the initiation of small signal operation after a change in sensing vector and/or after delivery of a stimulus to the patient is improved by the inclusion of input circuitry and/or the use of methods adapted to reduce the time needed to reach small signal operation.Type: ApplicationFiled: December 20, 2006Publication date: June 26, 2008Applicant: CAMERON HEALTH, INC.Inventor: Marcus Julian
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Patent number: 7169847Abstract: A polymeric membrane suitable for use in electrophoresis formed from a pre-polymer having a plurality of crosslinkable moieties and the crosslinkable moieties being crosslinked with a polyfunctional crosslinking agent.Type: GrantFiled: February 27, 2002Date of Patent: January 30, 2007Assignee: Life Therapeutics, Inc.Inventors: David Henry Solomon, Marcus Julian Caulfield, Helen Katherine Purss
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Publication number: 20050046576Abstract: A system and method of monitoring the position of a body part of a user. The system may be employed in athletic training, physical rehabilitation, or maintenance of proper body balance in daily activities. The system essentially creates a learning environment in which an athlete or physiotherapy patient is taught via immediate verbal feedback the proper body position to maintain for a particular sport or activity. The system includes one or more motion-detecting/signal-emitting units (“student units”) and one or more monitor/control units (“pro units”). Each student unit is mountable on the student user, and a position sensor within the unit senses a direction/magnitude of tilt/rotation relative to a predetermined reference position. The user of the pro unit can remotely monitor the positional information generated by the student unit via a wireless communications interface, as the user engages in the particular sport or activity.Type: ApplicationFiled: August 11, 2004Publication date: March 3, 2005Inventors: Marcus Julian, Christopher Noble, A. Thomas
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Patent number: 6737111Abstract: A polymeric membrane system containing a polymeric membrane and a substrate with interstitial gaps. Polymeric membrane components reside within the interstitial gaps of the substrate and below the surface of the substrate. Also, the layer of polymeric membrane components is thinner than the cross-sectional thickness of the substrate.Type: GrantFiled: February 12, 2003Date of Patent: May 18, 2004Assignee: Gradipore LimitedInventors: David Henry Solomon, Greg GuangHua Qiao, Marcus Julian Caulfield
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Publication number: 20030148062Abstract: A polymeric membrane system containing a polymeric membrane and a substrate with interstitial gaps. Polymeric membrane components reside within the interstitial gaps of the substrate and below the surface of the substrate. Also, the layer of polymeric membrane components is thinner than the cross-sectional thickness of the substrate.Type: ApplicationFiled: February 12, 2003Publication date: August 7, 2003Inventors: David Henry Solomon, Greg GuangHua Qiao, Marcus Julian Caulfield
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Patent number: 6551684Abstract: A polymeric membrane system containing a polymeric membrane and a substrate with interstitial gaps. Polymeric membrane components reside within the interstitial gaps of the substrate and below the surface of the substrate. Also, the layer of polymeric membrane components is thinner than the cross-sectional thickness of the substrate.Type: GrantFiled: August 25, 2000Date of Patent: April 22, 2003Assignee: Gradipore LimitedInventors: David Henry Solomon, Greg GuangHua Qiao, Marcus Julian Caulfield