Patents by Inventor David Stephen Celermajer

David Stephen Celermajer 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).

  • Publication number: 20240108348
    Abstract: A device (15, 50, 55, 60, 100, 200) for altering blood flow characteristics in a vessel (20), the device (15, 50, 55, 60, 100, 200) comprising: a cuff (10) configured to be surgically positioned around a portion of the vessel (20); a first pad (40) located on an internal wall of the cuff (10), wherein the pad (40): locally reduces a cross-sectional area of a passageway (25) extending through the cuff (10) and/or defines a passageway (25) within the cuff (10) which is non-linear.
    Type: Application
    Filed: December 16, 2020
    Publication date: April 4, 2024
    Inventors: David Stephen Celermajer, Anthony Ujhazy, Zoran Milijasevic
  • Publication number: 20240032905
    Abstract: A device for treating heart failure in a patient. The device comprising a body, at least one passage through the body, at least one one way valve in the passage and a mounting means adapted for mounting the body in an opening provided in the patient's atrial septum. In use, the device is oriented such that, when the patient's left atrial pressure exceeds the patient's right atrial pressure by a predetermined amount, the one way valve(s) opens to allow blood flow through the passage(s) from the left atrium to the right atrium to thereby reduce the left atrial pressure.
    Type: Application
    Filed: May 22, 2023
    Publication date: February 1, 2024
    Inventor: David Stephen CELERMAJER
  • Patent number: 11690609
    Abstract: A device for treating heart failure in a patient. The device comprising a body, at least one passage through the body, at least one one way valve in the passage and a mounting means adapted for mounting the body in an opening provided in the patient's atrial septum. In use, the device is oriented such that, when the patient's left atrial pressure exceeds the patient's right atrial pressure by a predetermined amount, the one way valve(s) opens to allow blood flow through the passage(s) from the left atrium to the right atrium to thereby reduce the left atrial pressure.
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: July 4, 2023
    Assignee: Corvia Medical, Inc.
    Inventor: David Stephen Celermajer
  • Publication number: 20230172610
    Abstract: Devices, systems, and methods for combinatorial treatment of a condition with an implantable damping device and biologic therapeutic agent are disclosed herein. Methods for treating one or more effects of the condition, such as a neurological condition, include providing the implantable damping device and at least one other therapy, such as a biologic therapeutic agent, that treats the condition to the patient. The implantable damping device includes a flexible damping member and an abating substance and can be placed in apposition with a blood vessel. The flexible damping member forms a generally tubular structure having an inner and an outer surface, the inner surface formed of a sidewall having a partially deformable portion. The abating substance is disposed within the partially deformable portion and moves longitudinally and/or radially within the partially deformable portion in response to pulsatile blood flow.
    Type: Application
    Filed: April 2, 2021
    Publication date: June 8, 2023
    Inventors: David Stephen Celermajer, Zoran Milijasevic, Anthony John Ujhazy, Mark Carnegie, Rachel Ashley Levin
  • Publication number: 20220233200
    Abstract: Devices, systems, and methods for reducing stress on a blood vessel are disclosed herein. A damping device (100) configured in accordance with embodiments of the present technology can include an anchoring member (104) coupled to a flexible, compliant damping member (102) including a generally tubular sidewall having an outer surface (115), an inner surface (113) defining a lumen configured to direct blood flow, a first end portion (106) and a second end portion (108), and a damping region (120) between the first and second end portions (106, 108). The inner and outer surfaces (113, 115) of the damping member (102) can be spaced apart by a distance that is greater at the damping region (120) than at either of the first or second end portions (106, 108).
    Type: Application
    Filed: December 3, 2021
    Publication date: July 28, 2022
    Inventors: David Stephen Celermajer, Anthony John Ujhazy, Michael Wallace, Zoran Milijasevic, Johnathon Choi, Jarred Shein
  • Publication number: 20220022881
    Abstract: Devices, systems, and methods for combinatorial treatment of a condition with an implantable damping device and therapeutic agent (e.g., drug) are disclosed herein. Methods for treating one or more effects of the condition, such as a neurological condition, include providing the implantable damping device and at least neck one other therapy, such as a therapeutic agent, that treats the condition to the patient. The implantable damping device includes a flexible damping member and an abating substance and can be placed in apposition with a blood vessel. The flexible damping member forms a generally tubular structure having an inner and an outer surface, the inner surface formed of a sidewall having a partially deformable portion. The abating substance is disposed within the partially deformable portion and moves longitudinally and/or radially within the partially deformable portion in response to pulsatile blood flow.
    Type: Application
    Filed: November 26, 2019
    Publication date: January 27, 2022
    Inventors: David Stephen Celermajer, Anthony John Ujhazy, Zoran Milijasevic, Mark Carnegie
  • Patent number: 11224433
    Abstract: Devices, systems, and methods for reducing stress on a blood vessel are disclosed herein. A damping device (100) configured in accordance with embodiments of the present technology can include an anchoring member (104) coupled to a flexible, compliant damping member (102) including a generally tubular sidewall having an outer surface (115), an inner surface (113) defining a lumen configured to direct blood flow, a first end portion (106) and a second end portion (108), and a damping region (120) between the first and second end portions (106, 108). The inner and outer surfaces (113, 115) of the damping member (102) can be spaced apart by a distance that is greater at the damping region (120) than at either of the first or second end portions (106, 108).
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: January 18, 2022
    Assignee: The Brain Protection Company Pty Ltd
    Inventors: David Stephen Celermajer, Anthony John Ujhazy, Michael Wallace, Zoran Milijasevic, Johnathon Choi, Jarred Shein
  • Publication number: 20220008229
    Abstract: Devices, systems, and methods for combinatorial treatment of a condition with an implantable damping device and therapeutic agent (e.g., dmg) are disclosed herein. Methods for treating one or more effects of the condition, such as a neurological condition, include providing the implantable damping device and at least one other therapy, such as a therapeutic agent, that treats the condition to the patient. The implantable damping device includes a flexible damping member and an abating substance and can be placed in apposition with a blood vessel. The flexible damping member forms a generally tubular structure having an inner and an outer surface, the inner surface formed of a sidewall having a partially deformable portion. The abating substance is disposed within the partially deformable portion and moves longitudinally and/or radially within the partially deformable portion in response to pulsatile blood flow.
    Type: Application
    Filed: November 26, 2019
    Publication date: January 13, 2022
    Inventors: David Stephen Celermajer, Anthony John Ujhazy, Zoran Milijasevic, Mark Carnegie
  • Publication number: 20210393189
    Abstract: A device (10) for assessing a patient's absolute and/or relative risk of cognitive decline and/or dementia, the device (10) comprising: a probe (12) configured to be placed adjacent to a patient's common carotid artery, internal carotid artery or external carotid artery, at least two sensors (101, 102, 104, 106, 108, 110) associated with the probe (12), the sensors being configured to measure one or more of: wave intensity of carotid pulse; wave power of carotid pulse; and pressure waveform of carotid pulse, pulse wave velocity, artery compliance, artery stiffness, artery diameter; micro-emboli count; Heart rate variability; and changes to the eye or retina.
    Type: Application
    Filed: October 11, 2019
    Publication date: December 23, 2021
    Inventors: David Stephen Celermajer, John Deanfield, Anthony Ujhazy, Zoran Milijasevic
  • Publication number: 20200375721
    Abstract: An implantable damping device (100) for modifying blood flow characteristics in a vessel (50), the device (100) including: a first expansion chamber (110) having a first chamber proximal end (130), a first chamber distal end (170) and a first chamber intermediate portion (140) having a larger cross-sectional area than the first chamber proximal and distal ends (130), wherein the first expansion chamber (110) generates a pressure drop in blood flow downstream of the device (100) relative to blood flow upstream of the device (100).
    Type: Application
    Filed: November 2, 2018
    Publication date: December 3, 2020
    Inventors: David Stephen Celermajer, Anthony John Ujhazy, Zoran Milijasevic
  • Publication number: 20200245991
    Abstract: A device for treating heart failure in a patient. The device comprising a body, at least one passage through the body, at least one one way valve in the passage and a mounting means adapted for mounting the body in an opening provided in the patient's atrial septum. In use, the device is oriented such that, when the patient's left atrial pressure exceeds the patient's right atrial pressure by a predetermined amount, the one way valve(s) opens to allow blood flow through the passage(s) from the left atrium to the right atrium to thereby reduce the left atrial pressure.
    Type: Application
    Filed: April 21, 2020
    Publication date: August 6, 2020
    Inventor: David Stephen CELERMAJER
  • Patent number: 10624621
    Abstract: A device (10) for treating heart failure in a patient. The device (10) comprising a body (12), at least one passage (18) through the body (12), at least one one way valve (20) in the passage (18) and a mounting means (14) adapted for mounting the body (12) in an opening provided in the patient's atrial septum. In use, the device (10) is oriented such that, when the patient's left atrial pressure exceeds the patient's right atrial pressure by a predetermined amount, the one way valve(s) (20) opens to allow blood flow through the passage(s) from the left atrium to the right atrium to thereby reduce the left atrial pressure.
    Type: Grant
    Filed: November 7, 2007
    Date of Patent: April 21, 2020
    Assignee: Corvia Medical, Inc.
    Inventor: David Stephen Celermajer
  • Publication number: 20190336133
    Abstract: Devices, systems, and methods for reducing stress on a blood vessel are disclosed herein. A damping device (100) configured in accordance with embodiments of the present technology can include an anchoring member (104) coupled to a flexible, compliant damping member (102) including a generally tubular sidewall having an outer surface (115), an inner surface (113) defining a lumen configured to direct blood flow, a first end portion (106) and a second end portion (108), and a damping region (120) between the first and second end portions (106, 108). The inner and outer surfaces (113, 115) of the damping member (102) can be spaced apart by a distance that is greater at the damping region (120) than at either of the first or second end portions (106, 108).
    Type: Application
    Filed: August 13, 2015
    Publication date: November 7, 2019
    Inventors: David Stephen Celermajer, Anthony John Ujhazy, Michael Wallace, Zoran Milijasevic, Johnathon Choi, Jarred Shein
  • Publication number: 20190307459
    Abstract: Devices, systems, and methods for reducing stress on a blood vessel are disclosed herein. For example, a method of treating effects of dementia comprises positioning a damping device along an artery that provides blood to a brain of a person so that an inner surface of the damping device contacts an outer surface of the artery. Wherein an inner diameter of the inner surface changes in response to a wavefront of blood passing through the artery and thereby attenuates energy of the wavefront.
    Type: Application
    Filed: May 24, 2019
    Publication date: October 10, 2019
    Inventors: David Stephen Celermajer, Anthony Ujhazy, Mike Wallace, Zoran Milijasevic, Johnathon Choi
  • Patent number: 10398421
    Abstract: A device for treating a heart condition in a patient. The device has a body adapted and configured to self-expand from a radially collapsed configuration to an expanded configuration. In its expanded configuration, the device has a first section at a first end, a second section at a second end and a central portion extending between the first and second sections, the first and second sections each having diameters that increase with distance from the central portion toward the first and second ends, respectively. The body is configured to be delivered percutaneously to a patient's heart and allowed to self-expand in an opening in a septum of the heart to dispose the first end in the left atrium, the second end in the right atrium and the central portion in the opening to permit blood to flow through the body from the left atrium to the right atrium.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: September 3, 2019
    Assignee: DC Devices Pty. Ltd.
    Inventor: David Stephen Celermajer
  • Patent number: 10064626
    Abstract: Devices, systems, and methods for reducing stress on a blood vessel are disclosed herein. A damping device configured in accordance with embodiments of the present technology can include an anchoring member coupled to a flexible, compliant damping member including a generally tubular sidewall having an outer surface, an inner surface defining a lumen configured to direct blood flow, a first end portion and a second end portion, and a damping region between the first and second end portions. The inner and outer surfaces of the damping member can be spaced apart by a distance greater at the damping region than at the first or second end portions. When blood flows through the damping member during systole, the damping member absorbs a portion of the pulsatile energy of the blood, thereby reducing a magnitude of the pulse pressure transmitted to a portion of the blood vessel distal to the damping device.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: September 4, 2018
    Assignee: The Brain Protection Company PTY LTD
    Inventors: David Stephen Celermajer, Anthony Ujhazy, Mike Wallace, Zoran Milijasevic, Johnathon Choi
  • Publication number: 20180214157
    Abstract: Devices, systems, and methods for reducing stress on a blood vessel are disclosed herein. A damping device configured in accordance with embodiments of the present technology can include an anchoring member coupled to a flexible, compliant damping member including a generally tubular sidewall having an outer surface, an inner surface defining a lumen configured to direct blood flow, a first end portion and a second end portion, and a damping region between the first and second end portions, The inner and outer surfaces of the damping member can be spaced apart by a distance that is greater at the damping region than at either of the first or second end. portions.
    Type: Application
    Filed: March 27, 2018
    Publication date: August 2, 2018
    Inventors: David Stephen Celermajer, Anthony John Ujhazy, Mike Wallace, Zoran Milijasevic, Johnathon Choi
  • Publication number: 20180008279
    Abstract: Devices, systems, and methods for reducing stress on a blood vessel are disclosed herein. A damping device configured in accordance with embodiments of the present technology can include an anchoring member coupled to a flexible, compliant damping member including a generally tubular sidewall having an outer surface, an inner surface defining a lumen configured to direct blood flow, a first end portion and a second end portion, and a damping region between the first and second end portions. The inner and outer surfaces of the damping member can be spaced apart by a distance that is greater at the damping region than at either of the first or second end portions. When blood flows through the damping member during systole, the damping member absorbs a portion of the pulsatile energy of the blood, thereby reducing a magnitude of the pulse pressure transmitted to a portion of the blood vessel distal to the damping device.
    Type: Application
    Filed: September 5, 2017
    Publication date: January 11, 2018
    Inventors: David Stephen Celermajer, Anthony Ujhazy, Mike Wallace, Zoran Milijasevic, Johnathon Choi
  • Publication number: 20170042551
    Abstract: Devices, systems, and methods for reducing stress on a blood vessel are disclosed herein. A damping device configured in accordance with embodiments of the present technology can include an anchoring member coupled to a flexible, compliant damping member including a generally tubular sidewall having an outer surface, an inner surface defining a lumen configured to direct blood flow, a first end portion and a second end portion, and a damping region between the first and second end portions. The inner and outer surfaces of the damping member can be spaced apart by a distance that is greater at the damping region than at either of the first or second end portions. When blood flows through the damping member during systole, the damping member absorbs a portion of the pulsatile energy of the blood, thereby reducing a magnitude of the pulse pressure transmitted to a portion of the blood vessel distal to the damping device.
    Type: Application
    Filed: August 11, 2016
    Publication date: February 16, 2017
    Inventors: David Stephen Celermajer, Anthony Ujhazy, Mike Wallace, Zoran Milijasevic, Johnathon Choi
  • Publication number: 20140257167
    Abstract: A device for treating a heart condition in a patient. The device has a body adapted and configured to self-expand from a radially collapsed configuration to an expanded configuration. In its expanded configuration, the device has a first section at a first end, a second section at a second end and a central portion extending between the first and second sections, the first and second sections each having diameters that increase with distance from the central portion toward the first and second ends, respectively. The body is configured to be delivered percutaneously to a patient's heart and allowed to self-expand in an opening in a septum of the heart to dispose the first end in the left atrium, the second end in the right atrium and the central portion in the opening to permit blood to flow through the body from the left atrium to the right atrium.
    Type: Application
    Filed: May 19, 2014
    Publication date: September 11, 2014
    Inventor: David Stephen CELERMAJER