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).
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Patent number: 11937835Abstract: 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: GrantFiled: July 12, 2019Date of Patent: March 26, 2024Assignee: NEURAVI LIMITEDInventors: David Vale, Eamon Brady, Michael Gilvarry, Mahmood Razavi, Kevin McArdle, David Hardiman, Brendan Casey
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Patent number: 11871945Abstract: 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: GrantFiled: April 5, 2019Date of Patent: January 16, 2024Assignee: NEURAVI LIMITEDInventors: Eamon Brady, Brendan Casey, Michael Gilvarry, David Hardiman, Kevin McArdle, Mahmood Razavi, David Vale
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Patent number: 11857750Abstract: 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: GrantFiled: September 10, 2021Date of Patent: January 2, 2024Inventors: Mahmood Razavi, Bhavraj Khalsa, Meena Michael Archie
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Patent number: 11839392Abstract: 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: GrantFiled: October 22, 2019Date of Patent: December 12, 2023Assignee: Neuravi LimitedInventors: Eamon Brady, Brendan Casey, Michael Gilvarry, David Hardiman, Kevin McArdle, Mahmood Razavi, David Vale
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Publication number: 20230147735Abstract: 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: ApplicationFiled: November 15, 2022Publication date: May 11, 2023Applicant: Neuravi LimitedInventors: Eamon BRADY, David VALE, Michael GILVARRY, Mahmood RAZAVI, John O'SHAUGHNESSY
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Publication number: 20230123291Abstract: 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: ApplicationFiled: December 1, 2022Publication date: April 20, 2023Applicant: Neuravi LimitedInventors: David VALE, Michael GILVARRY, Eamon BRADY, Mahmood RAZAVI
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Patent number: 11547427Abstract: 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: GrantFiled: August 19, 2019Date of Patent: January 10, 2023Assignee: NEURAVI LIMITEDInventors: David Vale, Michael Gilvarry, Eamon Brady, Mahmood Razavi
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Patent number: 11529157Abstract: 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: GrantFiled: October 25, 2019Date of Patent: December 20, 2022Assignee: NEURAVI LIMITEDInventors: Eamon Brady, David Vale, Michael Gilvarry, Mahmood Razavi, John O'Shaughnessy
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Publication number: 20220080176Abstract: 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: ApplicationFiled: September 10, 2021Publication date: March 17, 2022Inventors: Mahmood Razavi, Bhavraj Khalsa, Meena Michael Archie
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Publication number: 20210038227Abstract: A thrombus retrieval device configured to restore blood flow in neurovasculature by removing thrombus in human patients experiencing ischemic stroke.Type: ApplicationFiled: October 15, 2020Publication date: February 11, 2021Applicant: NEURAVI LIMITEDInventors: David VALE, Eamon BRADY, Michael GILVARRY, Mahmood RAZAVI, Patrick GRIFFIN, Brendan CASEY, Jason MCNAMARA, David HARDIMAN, Kevin McARDLE, Mairsil CLAFFEY
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Patent number: 10842498Abstract: 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: GrantFiled: September 12, 2019Date of Patent: November 24, 2020Assignee: NEURAVI LIMITEDInventors: David Vale, Eamon Brady, Michael Gilvarry, Mahmood Razavi, Patrick Griffin, Brendan Casey, Jason McNamara, David Hardiman, Kevin McArdle, Mairsil Claffey
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Patent number: 10799255Abstract: 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: GrantFiled: August 27, 2014Date of Patent: October 13, 2020Assignee: REFLOW MEDICAL, INC.Inventors: Isa Rizk, John Fulkerson, Mahmood Razavi
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Patent number: 10675045Abstract: 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: GrantFiled: December 31, 2015Date of Patent: June 9, 2020Assignee: Neuravi LimitedInventors: Eamon Brady, Brendan Casey, Michael Gilvarry, David Hardiman, Kevin McArdle, Mahmood Razavi, David Vale
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Publication number: 20200121339Abstract: 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: ApplicationFiled: October 25, 2019Publication date: April 23, 2020Applicant: NEURAVI LIMITEDInventors: Eamon BRADY, David VALE, Michael GILVARRY, Mahmood RAZAVI, John O'SHAUGHNESSY
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Patent number: 10610246Abstract: 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: GrantFiled: December 31, 2015Date of Patent: April 7, 2020Assignee: Neuravi LimitedInventors: Eamon Brady, Brendan Casey, Michael Gilvarry, David Hardiman, Kevin McArdle, Mahmood Razavi, David Vale
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Publication number: 20200085444Abstract: 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: ApplicationFiled: September 12, 2019Publication date: March 19, 2020Applicant: NEURAVI LIMITEDInventors: David VALE, Eamon BRADY, Michael GILVARRY, Mahmood RAZAVI, Patrick GRIFFIN, Brendan CASEY, Jason MCNAMARA, David HARDIMAN, Kevin McARDLE, Mairsil CLAFFEY
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Patent number: 10588648Abstract: 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: GrantFiled: December 31, 2015Date of Patent: March 17, 2020Assignee: Neuravi LimitedInventors: Eamon Brady, Brendan Casey, Michael Gilvarry, David Hardiman, Kevin McArdle, Mahmood Razavi, David Vale
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Patent number: 10582939Abstract: 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: GrantFiled: July 7, 2016Date of Patent: March 10, 2020Assignee: Neuravi LimitedInventors: Eamon Brady, David Vale, Michael Gilvarry, Mahmood Razavi, John O'Shaughnessy
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Publication number: 20200046390Abstract: 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: ApplicationFiled: October 22, 2019Publication date: February 13, 2020Applicant: Neuravi LimitedInventors: Eamon BRADY, Brendan CASEY, Michael GILVARRY, David HARDIMAN, Kevin MCARDLE, Mahmood RAZAVI, David VALE
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Publication number: 20200000483Abstract: 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: ApplicationFiled: September 12, 2019Publication date: January 2, 2020Applicant: NEURAVI LIMITEDInventors: Eamon BRADY, Brendan CASEY, Michael GILVARRY, David HARDIMAN, Kevin McARDLE, Mahmood RAZAVI, David VALE, Patrick GRIFFIN, Jason McNAMARA, Marisil CLAFFEY