Patents by Inventor Isa Rizk

Isa Rizk 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: 11877762
    Abstract: A retrieval device can include inwardly facing protruding features that facilitate engagement and capture of a thrombus or other mass from a body lumen of a patient. The protruding features can deploy from a frame of the retrieval device to extend radially inwardly toward an opposing side of the frame. When deployed into a thrombus, the protruding features engage and urge the thrombus as the retrieval device moves to facilitate capture.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: January 23, 2024
    Assignee: REFLOW MEDICAL, INC.
    Inventors: John Fulkerson, Isa Rizk, Jihad Ali Mustapha, Teodoro S. Jimenez, Jr., Patrick Lo
  • Publication number: 20230248558
    Abstract: Delivery systems for expandable elements, such as stents or scaffolds having spikes, flails, or other protruding features for penetrating target tissue and/or delivering drugs within a human patient are described along with associated methods for using such systems. The delivery systems can be provided with a stent that is positioned over an inflatable balloon for expansion and delivery of the stent to a target delivery location. By positioning the stent over and about the inflatable balloon, the stent is ready to be expanded by the balloon immediately upon unsheathing with respect to the outer shaft. Additionally or alternatively, a stent can be positioned in an axially offset arrangement with respect to a balloon to reduce the need for space required by overlapping components.
    Type: Application
    Filed: April 14, 2023
    Publication date: August 10, 2023
    Inventors: Teodoro S. Jimenez, Jr., Patrick Lo, John Fulkerson, Isa Rizk, Francisco Aguayo, Jihad Ali Mustapha, Gary Ansel
  • Patent number: 11648139
    Abstract: Delivery systems for expandable elements, such as stents or scaffolds having spikes, flails, or other protruding features for penetrating target tissue and/or delivering drugs within a human patient are described along with associated methods for using such systems. The delivery systems can be provided with a stent that is positioned over an inflatable balloon for expansion and delivery of the stent to a target delivery location. By positioning the stent over and about the inflatable balloon, the stent is ready to be expanded by the balloon immediately upon unsheathing with respect to the outer shaft. Additionally or alternatively, a stent can be positioned in an axially offset arrangement with respect to a balloon to reduce the need for space required by overlapping components.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: May 16, 2023
    Assignee: REFLOW MEDICAL, INC.
    Inventors: Teodoro S. Jimenez, Jr., Patrick Lo, John Fulkerson, Isa Rizk, Francisco Aguayo, Jihad Ali Mustapha, Gary Ansel
  • Publication number: 20230109591
    Abstract: Delivery systems for expandable elements, such as stents or scaffolds are described along with associated methods for using such systems. The delivery systems can be provided with a stent and/or a balloon the is enclosed by a sheath that need not extend an entire length of the delivery system. Instead, the sheath can be coupled to a control wire for retraction and advancement of the sheath. By enclosing the stent and/or balloon with a short sheath, the profile of the delivery system is reduced.
    Type: Application
    Filed: September 29, 2022
    Publication date: April 6, 2023
    Inventors: Teodoro S. Jimenez, Jr., John Fulkerson, Isa Rizk, Francisco Aguayo
  • Publication number: 20230091211
    Abstract: A delivery system can be provided with an ability to change its configurations to achieve both access to target anatomy and treatment thereof. Such treatments can include directing interventional devices around an occlusion. By providing different functionality at different stages, the need to exchange and replace tools at different stages can be reduced or eliminated. Accordingly, such operations can be completed more rapidly, efficiently, and safely.
    Type: Application
    Filed: November 21, 2022
    Publication date: March 23, 2023
    Inventors: Outhit Bouasaysy, John Fulkerson, Isa Rizk, Fadi Saab
  • Patent number: 11565079
    Abstract: A delivery device can be provided with a low outer profile and high flexibility for navigating tortuous anatomy. An inner lumen defined by a shaft of the delivery device provides adequate space for delivery devices to target anatomy. Additionally, the delivery device maintains the patency of its lumen even when positioned within tortuous anatomy. The turns of filar(s) forming a coil of the shaft adjust their axial spacing relative to each other to avoiding buckling that would otherwise result in a narrowing of the inner lumen.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: January 31, 2023
    Assignee: REFLOW MEDICAL, INC.
    Inventors: Outhit Bouasaysy, Isa Rizk, John Fulkerson
  • Patent number: 11504142
    Abstract: A delivery system can be provided with an ability to change its configurations to achieve both access to target anatomy and treatment thereof. Such treatments can include directing interventional devices around an occlusion. By providing different functionality at different stages, the need to exchange and replace tools at different stages can be reduced or eliminated. Accordingly, such operations can be completed more rapidly, efficiently, and safely.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: November 22, 2022
    Assignee: ReFlow Medical, Inc.
    Inventors: Outhit Bouasaysy, John Fulkerson, Isa Rizk, Fadi Saab
  • Patent number: 11253379
    Abstract: Expandable elements having drug-delivery features and associated systems and methods are disclosed herein. In one embodiment, a drug-eluting stent includes a radially expandable cylindrical frame having a plurality of struts. The frame is transformable between a low-profile delivery state and an expanded deployed state. A plurality of drug-delivery features are carried by one of the struts and configured to deliver a drug to a treatment site within the patient or piercing through the tissue wall to break the constricting of the vessel wall inwardly. When the frame is in the expanded state within a body lumen of the patient, the drug-delivery features extend radially outwardly away from the strut and are configured to engage and, in some arrangements, pass through a wall of the body lumen.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: February 22, 2022
    Assignee: ReFlow Medical, Inc.
    Inventors: John Fulkerson, Isa Rizk, Jihad Ali Mustapha, Teodoro S. Jimenez, Jr.
  • Publication number: 20210128330
    Abstract: A stent can include outwardly facing protruding features that facilitate engagement with a wall of a body vessel. The protruding features can deploy from a frame of the stent to extend radially outwardly. When deployed into a body vessel, the protruding features engage and anchor against the wall of the body vessel to ensure accurate and secure placement of the stent.
    Type: Application
    Filed: November 4, 2020
    Publication date: May 6, 2021
    Inventors: John Fulkerson, Isa Rizk, Jihad Ali Mustapha, Teodoro S. Jimenez, JR.
  • Publication number: 20210128184
    Abstract: A retrieval device can include inwardly facing protruding features that facilitate engagement and capture of a thrombus or other mass from a body lumen of a patient. The protruding features can deploy from a frame of the retrieval device to extend radially inwardly toward an opposing side of the frame. When deployed into a thrombus, the protruding features engage and urge the thrombus as the retrieval device moves to facilitate capture.
    Type: Application
    Filed: October 30, 2020
    Publication date: May 6, 2021
    Inventors: John Fulkerson, Isa Rizk, Jihad Ali Mustapha, Teodoro S. Jimenez, JR., Patrick LO
  • Publication number: 20210045757
    Abstract: A delivery system can be provided with an ability to change its configurations to achieve both access to target anatomy and treatment thereof. Such treatments can include directing interventional devices around an occlusion. By providing different functionality at different stages, the need to exchange and replace tools at different stages can be reduced or eliminated. Accordingly, such operations can be completed more rapidly, efficiently, and safely.
    Type: Application
    Filed: August 13, 2020
    Publication date: February 18, 2021
    Inventors: Outhit Bouasaysy, John Fulkerson, Isa Rizk, Fadi Saab
  • Publication number: 20210046279
    Abstract: A delivery device can be provided with a low outer profile and high flexibility for navigating tortuous anatomy. An inner lumen defined by a shaft of the delivery device provides adequate space for delivery devices to target anatomy. Additionally, the delivery device maintains the patency of its lumen even when positioned within tortuous anatomy. The turns of filar(s) forming a coil of the shaft adjust their axial spacing relative to each other to avoiding buckling that would otherwise result in a narrowing of the inner lumen.
    Type: Application
    Filed: August 13, 2020
    Publication date: February 18, 2021
    Inventors: Outhit Bouasaysy, Isa Rizk, John Fulkerson
  • 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
  • Publication number: 20200107947
    Abstract: Delivery systems for expandable elements, such as stents or scaffolds having spikes, flails, or other protruding features for penetrating target tissue and/or delivering drugs within a human patient are described along with associated methods for using such systems. The delivery systems can be provided with a stent that is positioned over an inflatable balloon for expansion and delivery of the stent to a target delivery location. By positioning the stent over and about the inflatable balloon, the stent is ready to be expanded by the balloon immediately upon unsheathing with respect to the outer shaft. Additionally or alternatively, a stent can be positioned in an axially offset arrangement with respect to a balloon to reduce the need for space required by overlapping components.
    Type: Application
    Filed: October 4, 2019
    Publication date: April 9, 2020
    Inventors: Teodoro S. Jimenez, JR., Patrick Lo, John Fulkerson, Isa Rizk, Francisco Aguayo, Jihad Ali Mustapha, Gary Ansel
  • Publication number: 20190201219
    Abstract: Expandable elements having drug-delivery features and associated systems and methods are disclosed herein. In one embodiment, a drug-eluting stent includes a radially expandable cylindrical frame having a plurality of struts. The frame is transformable between a low-profile delivery state and an expanded deployed state. A plurality of drug-delivery features are carried by one of the struts and configured to deliver a drug to a treatment site within the patient or piercing through the tissue wall to break the constricting of the vessel wall inwardly. When the frame is in the expanded state within a body lumen of the patient, the drug-delivery features extend radially outwardly away from the strut and are configured to engage and, in some arrangements, pass through a wall of the body lumen.
    Type: Application
    Filed: March 6, 2019
    Publication date: July 4, 2019
    Inventors: John Fulkerson, Isa Rizk, Jihad Ali Mustapha, Teodoro S. Jimenez
  • Patent number: 10258487
    Abstract: Expandable elements having drug-delivery features and associated systems and methods are disclosed herein. In one embodiment, a drug-eluting stent includes a radially expandable cylindrical frame having a plurality of struts. The frame is transformable between a low-profile delivery state and an expanded deployed state. A plurality of drug-delivery features are carried by one of the struts and configured to deliver a drug to a treatment site within the patient or piercing through the tissue wall to break the constricting of the vessel wall inwardly. When the frame is in the expanded state within a body lumen of the patient, the drug-delivery features extend radially outwardly away from the strut and are configured to engage and, in some arrangements, pass through a wall of the body lumen.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: April 16, 2019
    Assignee: REFLOW MEDICAL, INC.
    Inventors: John Fulkerson, Isa Rizk, Jihad Ali Mustapha, Teodoro S. Jimenez, Jr.
  • Patent number: 10172729
    Abstract: Expandable elements having drug-delivery features and associated systems and methods are disclosed herein. In one embodiment, a drug-eluting stent includes a radially expandable cylindrical frame having a plurality of struts. The frame is transformable between a low-profile delivery state and an expanded deployed state. A plurality of drug-delivery features are carried by one of the struts and configured to deliver a drug to a treatment site within the patient or piercing through the tissue wall to break the constricting of the vessel wall inwardly. When the frame is in the expanded state within a body lumen of the patient, the drug-delivery features extend radially outwardly away from the strut and are configured to engage and, in some arrangements, pass through a wall of the body lumen.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: January 8, 2019
    Assignee: REFLOW MEDICAL, INC.
    Inventors: John Fulkerson, Isa Rizk, Jihad Ali Mustapha, Teodoro S. Jimenez, Jr.
  • Publication number: 20180289517
    Abstract: Delivery systems for expandable elements, such as stents or scaffolds having spikes, flails, or other protruding features for delivering drugs and/or penetrating target tissue within a human patient and associated methods for using such systems. The delivery systems can be configured to deliver and position expandable structures within a body lumen (e.g., vessel). In addition, these delivery systems can also be configured to deploy and expand the expandable structures in the body lumen. The delivery systems can further be configured to engage with the expanded structure and collapse the structure for removal from the body lumen. The delivery systems can be configured to deliver another expandable structure or the same expandable structure to another body lumen, or the same body lumen, in a single procedure or during a plurality of procedures.
    Type: Application
    Filed: April 6, 2018
    Publication date: October 11, 2018
    Inventors: Teodoro S. Jimenez, John Fulkerson, Isa Rizk, Jihad Ali Mustapha
  • Publication number: 20170196717
    Abstract: Expandable elements having drug-delivery features and associated systems and methods are disclosed herein. In one embodiment, a drug-eluting stent includes a radially expandable cylindrical frame having a plurality of struts. The frame is transformable between a low-profile delivery state and an expanded deployed state. A plurality of drug-delivery features are carried by one of the struts and configured to deliver a drug to a treatment site within the patient or piercing through the tissue wall to break the constricting of the vessel wall inwardly. When the frame is in the expanded state within a body lumen of the patient, the drug-delivery features extend radially outwardly away from the strut and are configured to engage and, in some arrangements, pass through a wall of the body lumen.
    Type: Application
    Filed: March 27, 2017
    Publication date: July 13, 2017
    Inventors: John Fulkerson, Isa Rizk, Jihad Ali Mustapha, Teodoro S. Jimenez, JR.
  • Publication number: 20170100266
    Abstract: Expandable elements having drug-delivery features and associated systems and methods are disclosed herein. In one embodiment, a drug-eluting stent includes a radially expandable cylindrical frame having a plurality of struts. The frame is transformable between a low-profile delivery state and an expanded deployed state. A plurality of drug-delivery features are carried by one of the struts and configured to deliver a drug to a treatment site within the patient or piercing through the tissue wall to break the constricting of the vessel wall inwardly. When the frame is in the expanded state within a body lumen of the patient, the drug-delivery features extend radially outwardly away from the strut and are configured to engage and, in some arrangements, pass through a wall of the body lumen.
    Type: Application
    Filed: October 12, 2016
    Publication date: April 13, 2017
    Inventors: John Fulkerson, Isa Rizk, Jihad Ali Mustapha, Teodoro S. Jimenez, JR.