Patents by Inventor Mahmood Razavi

Mahmood Razavi 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).

  • Patent number: 11937835
    Abstract: A clot retrieval device for removing clot from a blood vessel, including a shaft; a plurality of expandable bodies distal of the shaft, each expandable body comprising a plurality of scaffolding segments forming closed cells, wherein at least one of the clot scaffolding segments terminates in a distal apex free from connection to an adjacent closed cell; and a plurality of clot inlet mouths between expandable bodies through which clot may pass and enter the device.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: March 26, 2024
    Assignee: NEURAVI LIMITED
    Inventors: David Vale, Eamon Brady, Michael Gilvarry, Mahmood Razavi, Kevin McArdle, David Hardiman, Brendan Casey
  • Patent number: 11871945
    Abstract: A reperfusion device for an occluded vessel. The device includes a framework of struts that form a porous body comprising a collapsed delivery configuration capable of being stored in a microcatheter and an expanded deployed configuration when delivered to an occlusion and distal of the microcatheter. The framework of struts is constructed from a material visible under fluoroscopy and capable of recovering its shape in the expanded deployed configuration once released from the collapsed delivery configuration in the microcatheter.
    Type: Grant
    Filed: April 5, 2019
    Date of Patent: January 16, 2024
    Assignee: NEURAVI LIMITED
    Inventors: Eamon Brady, Brendan Casey, Michael Gilvarry, David Hardiman, Kevin McArdle, Mahmood Razavi, David Vale
  • Patent number: 11857750
    Abstract: A vascular access system can include a port configured to be implanted outside of a target body lumen, at least one conduit fluidly connected to the port, and at least one one-way valve proximate the distal end of the conduit and within the fluid pathway of the sidewall of the conduit. The system can also include a gateway element comprising a through lumen operably connected to an outer diameter of the conduit, the gateway element comprising a first radially compressed configuration in which the gateway element causes occlusion within the through lumen, and a second radially expanded configuration in which the gateway element permits passage of fluids within the through lumen.
    Type: Grant
    Filed: September 10, 2021
    Date of Patent: January 2, 2024
    Inventors: Mahmood Razavi, Bhavraj Khalsa, Meena Michael Archie
  • Patent number: 11839392
    Abstract: A clot retrieval device for removing clot from a blood vessel, including a shaft extending between a proximal end and a distal end; a first expandable body coupled to the distal end of the shaft, the first expandable body comprising a plurality of scaffolding segments forming closed cells, wherein at least one of the clot scaffolding segments terminates in a distal apex free from connection to an adjacent closed cell; a second expandable body distal of the first expandable body and comprising a plurality of scaffolding segments forming closed cells; and at least one clot inlet mouth between the first and second expandable bodies and the distal apex through which clot may pass and enter the device.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: December 12, 2023
    Assignee: Neuravi Limited
    Inventors: Eamon Brady, Brendan Casey, Michael Gilvarry, David Hardiman, Kevin McArdle, Mahmood Razavi, David Vale
  • Publication number: 20230147735
    Abstract: A clot capture device for restoring blood flow to a vessel occluded by a clot including a plurality of struts formed by interconnected fibers terminating in a distal end. An open proximal end includes a clot capture space larger than the distal end. The device includes an expanded deployed configuration and a retracted delivery configuration whereby the device is advanceable through a microcatheter across the clot, and the device is configured such that upon deployment the device is deployed distal to the clot and then withdrawn to remove the clot from the vessel.
    Type: Application
    Filed: November 15, 2022
    Publication date: May 11, 2023
    Applicant: Neuravi Limited
    Inventors: Eamon BRADY, David VALE, Michael GILVARRY, Mahmood RAZAVI, John O'SHAUGHNESSY
  • Publication number: 20230123291
    Abstract: A clot retrieval device for removing clot from a blood vessel including a plurality of ring elements comprising a plurality of struts forming one or more closed cells having one or more crown elements and attached together by connecting tethers at connection points, a plurality of openings through which clot may pass and enter the device, each opening being disposed between respective ring elements. Each ring element can be self-expandable from a collapsed configuration to an expanded configuration wherein a radial force biases the ring elements toward the expanded configuration. At least one of the crown element terminates in an apex away from a center axis of the device.
    Type: Application
    Filed: December 1, 2022
    Publication date: April 20, 2023
    Applicant: Neuravi Limited
    Inventors: David VALE, Michael GILVARRY, Eamon BRADY, Mahmood RAZAVI
  • Patent number: 11547427
    Abstract: A clot retrieval device for removing clot from a blood vessel including a plurality of ring elements comprising a plurality of struts forming one or more closed cells having one or more crown elements and attached together by connecting tethers at connection points, a plurality of openings through which clot may pass and enter the device, each opening being disposed between respective ring elements. Each ring element can be self-expandable from a collapsed configuration to an expanded configuration wherein a radial force biases the ring elements toward the expanded configuration. At least one of the crown element terminates in an apex away from a center axis of the device.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: January 10, 2023
    Assignee: NEURAVI LIMITED
    Inventors: David Vale, Michael Gilvarry, Eamon Brady, Mahmood Razavi
  • Patent number: 11529157
    Abstract: A clot capture device for restoring blood flow to a vessel occluded by a clot including a plurality of struts formed by interconnected fibers terminating in a distal end. An open proximal end includes a clot capture space larger than the distal end. The device includes an expanded deployed configuration and a retracted delivery configuration whereby the device is advanceable through a microcatheter across the clot, and the device is configured such that upon deployment the device is deployed distal to the clot and then withdrawn to remove the clot from the vessel.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: December 20, 2022
    Assignee: NEURAVI LIMITED
    Inventors: Eamon Brady, David Vale, Michael Gilvarry, Mahmood Razavi, John O'Shaughnessy
  • Publication number: 20220080176
    Abstract: A vascular access system can include a port configured to be implanted outside of a target body lumen, at least one conduit fluidly connected to the port, and at least one one-way valve proximate the distal end of the conduit and within the fluid pathway of the sidewall of the conduit. The system can also include a gateway element comprising a through lumen operably connected to an outer diameter of the conduit, the gateway element comprising a first radially compressed configuration in which the gateway element causes occlusion within the through lumen, and a second radially expanded configuration in which the gateway element permits passage of fluids within the through lumen.
    Type: Application
    Filed: September 10, 2021
    Publication date: March 17, 2022
    Inventors: Mahmood Razavi, Bhavraj Khalsa, Meena Michael Archie
  • Publication number: 20210038227
    Abstract: A thrombus retrieval device configured to restore blood flow in neurovasculature by removing thrombus in human patients experiencing ischemic stroke.
    Type: Application
    Filed: October 15, 2020
    Publication date: February 11, 2021
    Applicant: NEURAVI LIMITED
    Inventors: David VALE, Eamon BRADY, Michael GILVARRY, Mahmood RAZAVI, Patrick GRIFFIN, Brendan CASEY, Jason MCNAMARA, David HARDIMAN, Kevin McARDLE, Mairsil CLAFFEY
  • Patent number: 10842498
    Abstract: Method for using a clot retrieval device for treating a clot in a blood vessel for use in the treatment of ischemic stroke to reperfuse an obstructed vessel.
    Type: Grant
    Filed: September 12, 2019
    Date of Patent: November 24, 2020
    Assignee: NEURAVI LIMITED
    Inventors: David Vale, Eamon Brady, Michael Gilvarry, Mahmood Razavi, Patrick Griffin, Brendan Casey, Jason McNamara, David Hardiman, Kevin McArdle, Mairsil Claffey
  • Patent number: 10799255
    Abstract: Methods for treating a patient using intravascular devices, systems, and methods are disclosed herein. One aspect of the present technology is directed to an intravascular device having an elongated member coupled to and extending between a handle and an angled distal portion. The distal portion is moveable between a first configuration having a first shape configured for intravascular delivery and a second configuration having a second shape, different than the first shape, that is configured for intravascular delivery.
    Type: Grant
    Filed: August 27, 2014
    Date of Patent: October 13, 2020
    Assignee: REFLOW MEDICAL, INC.
    Inventors: Isa Rizk, John Fulkerson, Mahmood Razavi
  • Patent number: 10675045
    Abstract: A clot retrieval device 1 for removing occlusive clot from a blood vessel, the device comprises an inner elongate body 3 having a collapsed delivery configuration and an expanded deployed configuration and an outer elongate body 2 at least partially overlying the inner elongate body 2. The outer elongate body 2 is expandable to a radial extent which is greater than the radial extent of the inner body 3 in the deployed configuration to define a clot reception space 11. The outer elongate body 2 comprises a distal end portion 24,49 and the inner elongate body 3 comprises a main body portion 10 and a distal portion which extends in the deployed configuration towards the outer elongate body 2 to a greater extent than the main body portion. The distal portion 10 of the inner elongate member 3 and the distal end portion 24,49 of the outer elongate body 2 together define a three dimensional protective structure to substantially prevent distal egress of clot or clot fragments from the device.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: June 9, 2020
    Assignee: Neuravi Limited
    Inventors: Eamon Brady, Brendan Casey, Michael Gilvarry, David Hardiman, Kevin McArdle, Mahmood Razavi, David Vale
  • Publication number: 20200121339
    Abstract: A clot capture device for restoring blood flow to a vessel occluded by a clot including a plurality of struts formed by interconnected fibers terminating in a distal end. An open proximal end includes a clot capture space larger than the distal end. The device includes an expanded deployed configuration and a retracted delivery configuration whereby the device is advanceable through a microcatheter across the clot, and the device is configured such that upon deployment the device is deployed distal to the clot and then withdrawn to remove the clot from the vessel.
    Type: Application
    Filed: October 25, 2019
    Publication date: April 23, 2020
    Applicant: NEURAVI LIMITED
    Inventors: Eamon BRADY, David VALE, Michael GILVARRY, Mahmood RAZAVI, John O'SHAUGHNESSY
  • Patent number: 10610246
    Abstract: A clot retrieval device 1 for removing occlusive clot from a blood vessel, the device comprises an inner elongate body 3 having a collapsed delivery configuration and an expanded deployed configuration and an outer elongate body 2 at least partially overlying the inner elongate body 2. The outer elongate body 2 is expandable to a radial extent which is greater than the radial extent of the inner body 3 in the deployed configuration to define a clot reception space 11. The outer elongate body 2 comprises a distal end portion 24,49 and the inner elongate body 3 comprises a main body portion 10 and a distal portion which extends in the deployed configuration towards the outer elongate body 2 to a greater extent than the main body portion. The distal portion 10 of the inner elongate member 3 and the distal end portion 24,49 of the outer elongate body 2 together define a three dimensional protective structure to substantially prevent distal egress of clot or clot fragments from the device.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: April 7, 2020
    Assignee: Neuravi Limited
    Inventors: Eamon Brady, Brendan Casey, Michael Gilvarry, David Hardiman, Kevin McArdle, Mahmood Razavi, David Vale
  • Publication number: 20200085444
    Abstract: Method for using a clot retrieval device for treating a clot in a blood vessel for use in the treatment of ischemic stroke to reperfuse an obstructed vessel.
    Type: Application
    Filed: September 12, 2019
    Publication date: March 19, 2020
    Applicant: NEURAVI LIMITED
    Inventors: David VALE, Eamon BRADY, Michael GILVARRY, Mahmood RAZAVI, Patrick GRIFFIN, Brendan CASEY, Jason MCNAMARA, David HARDIMAN, Kevin McARDLE, Mairsil CLAFFEY
  • Patent number: 10588648
    Abstract: A clot retrieval device 1 for removing occlusive clot from a blood vessel, the device comprises an inner elongate body 3 having a collapsed delivery configuration and an expanded deployed configuration and an outer elongate body 2 at least partially overlying the inner elongate body 2. The outer elongate body 2 is expandable to a radial extent which is greater than the radial extent of the inner body 3 in the deployed configuration to define a clot reception space 11. The outer elongate body 2 comprises a distal end portion 24,49 and the inner elongate body 3 comprises a main body portion 10 and a distal portion which extends in the deployed configuration towards the outer elongate body 2 to a greater extent than the main body portion. The distal portion 10 of the inner elongate member 3 and the distal end portion 24,49 of the outer elongate body 2 together define a three dimensional protective structure to substantially prevent distal egress of clot or clot fragments from the device.
    Type: Grant
    Filed: December 31, 2015
    Date of Patent: March 17, 2020
    Assignee: Neuravi Limited
    Inventors: Eamon Brady, Brendan Casey, Michael Gilvarry, David Hardiman, Kevin McArdle, Mahmood Razavi, David Vale
  • Patent number: 10582939
    Abstract: A clot capture system for disengaging a clot from a vessel wall and removing the clot from the vessel. The system may include a clot capture device for placement on a distal side of a clot. The clot capture device may have a retracted delivery configuration and an expanded deployed configuration. The clot removal device may have a proximal support frame, and a distal fiber net. The support frame may have a retracted delivery configuration and an expanded deployed configuration. The proximal support frame in the expanded configuration may define a proximal inlet mouth for engaging a clot and a net for confining the clot. An elongate member may facilitate capture and/or withdrawal of a clot from a vessel.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: March 10, 2020
    Assignee: Neuravi Limited
    Inventors: Eamon Brady, David Vale, Michael Gilvarry, Mahmood Razavi, John O'Shaughnessy
  • Publication number: 20200046390
    Abstract: A clot retrieval device for removing clot from a blood vessel, including a shaft extending between a proximal end and a distal end; a first expandable body coupled to the distal end of the shaft, the first expandable body comprising a plurality of scaffolding segments forming closed cells, wherein at least one of the clot scaffolding segments terminates in a distal apex free from connection to an adjacent closed cell; a second expandable body distal of the first expandable body and comprising a plurality of scaffolding segments forming closed cells; and at least one clot inlet mouth between the first and second expandable bodies and the distal apex through which clot may pass and enter the device.
    Type: Application
    Filed: October 22, 2019
    Publication date: February 13, 2020
    Applicant: Neuravi Limited
    Inventors: Eamon BRADY, Brendan CASEY, Michael GILVARRY, David HARDIMAN, Kevin MCARDLE, Mahmood RAZAVI, David VALE
  • Publication number: 20200000483
    Abstract: Methods and systems for using a clot retrieval device for treating a clot in a blood vessel for use in the treatment of ischemic stroke to achieve a clinically effective revascularization or perfusion rate.
    Type: Application
    Filed: September 12, 2019
    Publication date: January 2, 2020
    Applicant: NEURAVI LIMITED
    Inventors: Eamon BRADY, Brendan CASEY, Michael GILVARRY, David HARDIMAN, Kevin McARDLE, Mahmood RAZAVI, David VALE, Patrick GRIFFIN, Jason McNAMARA, Marisil CLAFFEY