Patents by Inventor Ashoor Shahbazi Yourgenlow

Ashoor Shahbazi Yourgenlow 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: 20240082536
    Abstract: A catheter is provided comprising localized regions of modified flexibility. The regions of modified flexibility may comprise a softened inner liner, for example softened via stretching the inner liner or disposing a plurality of holes in the inner liner, to modify the bending stiffness and/or tensile stiffness of the catheter. The catheter may further include an axially extending filament that at least partially overlaps the softened portion of the inner liner. The axially extending filament may include an anchoring section to anchor the at least one axially extending filament in a section of the catheter that includes the helical coil.
    Type: Application
    Filed: August 21, 2023
    Publication date: March 14, 2024
    Inventors: Brandon Yee, Ashoor Shahbazi Yourgenlow, Yi Yang, Farhad Khosravi, Joseph Rimsa
  • Patent number: 11766539
    Abstract: A catheter is provided comprising localized regions of modified flexibility. The regions of modified flexibility may comprise a softened inner liner, for example softened via stretching the inner liner or disposing a plurality of holes in the inner liner, to modify the bending stiffness and/or tensile stiffness of the catheter. The catheter may further include an axially extending filament that at least partially overlaps the softened portion of the inner liner. The axially extending filament may include an anchoring section to anchor the at least one axially extending filament in a section of the catheter that includes the helical coil.
    Type: Grant
    Filed: March 28, 2020
    Date of Patent: September 26, 2023
    Assignee: INCEPT, LLC
    Inventors: Brandon Yee, Ashoor Shahbazi Yourgenlow, Yi Yang, Farhad Khosravi, Joseph Rimsa
  • Publication number: 20230226318
    Abstract: An enhanced flexibility catheter is provided, such as for distal neurovascular access or aspiration. The catheter includes an elongate flexible body, having a proximal end, a distal end, and a side wall defining a central lumen. The side wall is formed from a plurality of adjacent tubular segments. At least one segment has a first end face inclined at a non normal angle to a longitudinal axis of the catheter. An adjacent segment has a second end face inclined at a complementary angle to form an inclined junction at the transition between the two segments. The transition serves to provide superior bending characteristics along the length of the catheter shaft.
    Type: Application
    Filed: January 27, 2023
    Publication date: July 20, 2023
    Inventors: Ashoor Shahbazi Yourgenlow, Lex Philip Jansen, Brandon Yee, David Blum, Yi Yang, Hao Doan
  • Publication number: 20230165596
    Abstract: A catheter is provided which includes an outer catheter and an extendable inner catheter. A sealing feature is positioned between the inner catheter and the outer catheter to seal the annular gap between the two while allowing axial translation. The seal may be a compliant protrusion surrounding the inner catheter and may have a chevron-shape for facilitating axial translation. The seal may be a one-way valve configured to allow antegrade flushing but prevent retrograde flow. The seal may be squeegee-like flange on the distal tip of the outer catheter. The seal may be an expandable bulge, which may be mechanically expandable or inflatable or which may be a photosensitive or electrosensitive hydrogel. The seal may include a spring that is radially compressed upon translation or rotation of the inner catheter to transiently break the seal. Also provided is a seal for sealing between the catheter and the vasculature.
    Type: Application
    Filed: December 2, 2022
    Publication date: June 1, 2023
    Inventors: Maria Aboytes, Yi Yang, Brandon Yee, Chad C. Roue, Tiffany C. Suekama, Ashoor Shahbazi Yourgenlow, Ryan Taylor Krone
  • Publication number: 20230061728
    Abstract: A neurovascular access catheter can comprise an elongate, flexible tubular body. The tubular body can comprise a proximal end, a distal end, and a side wall at least partially defining a central lumen. The central lumen can extend axially through the side wall. The tubular body can include a distal microcatheter segment that extends proximally from the distal end. The tubular body can include a proximal shaft that extends distally from the proximal end. The tubular body can include a tapered dilator segment being positioned in between the distal microcatheter segment and the proximal shaft segment.
    Type: Application
    Filed: August 31, 2022
    Publication date: March 2, 2023
    Inventors: Daniel Davis, Brandon Yee, Ashoor Shahbazi Yourgenlow, Yi Yang
  • Publication number: 20230064188
    Abstract: A neurovascular access catheter can comprise an elongate, flexible tubular body. The tubular body can comprise a proximal end, a distal end, and a side wall at least partially defining a central lumen. The central lumen can extend axially through the side wall. The tubular body can include a distal microcatheter segment that extends proximally from the distal end. The tubular body can include a proximal shaft that extends distally from the proximal end. The tubular body can include a tapered dilator segment being positioned in between the distal microcatheter segment and the proximal shaft segment.
    Type: Application
    Filed: August 29, 2022
    Publication date: March 2, 2023
    Inventors: Daniel Davis, Brandon Yee, Ashoor Shahbazi Yourgenlow, Yi Yang
  • Patent number: 11565082
    Abstract: An enhanced flexibility catheter is provided, such as for distal neurovascular access or aspiration. The catheter includes an elongate flexible body, having a proximal end, a distal end, and a side wall defining a central lumen. The side wall is formed from a plurality of adjacent tubular segments. At least one segment has a first end face inclined at a non normal angle to a longitudinal axis of the catheter. An adjacent segment has a second end face inclined at a complementary angle to form an inclined junction at the transition between the two segments. The transition serves to provide superior bending characteristics along the length of the catheter shaft.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: January 31, 2023
    Assignee: Imperative Care, Inc.
    Inventors: Ashoor Shahbazi Yourgenlow, Lex Philip Jansen, Brandon Yee, David Blum, Yi Yang, Hao Doan
  • Patent number: 11517335
    Abstract: A catheter is provided which includes an outer catheter and an extendable inner catheter. A sealing feature is positioned between the inner catheter and the outer catheter to seal the annular gap between the two while allowing axial translation. The seal may be a compliant protrusion surrounding the inner catheter and may have a chevron-shape for facilitating axial translation. The seal may be a one-way valve configured to allow antegrade flushing but prevent retrograde flow. The seal may be squeegee-like flange on the distal tip of the outer catheter. The seal may be an expandable bulge, which may be mechanically expandable or inflatable or which may be a photosensitive or electrosensitive hydrogel. The seal may include a spring that is radially compressed upon translation or rotation of the inner catheter to transiently break the seal. Also provided is a seal for sealing between the catheter and the vasculature.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: December 6, 2022
    Assignee: Incept, LLC
    Inventors: Maria Aboytes, Yi Yang, Brandon Yee, Chad C. Roue, Tiffany C. Suekama, Ashoor Shahbazi Yourgenlow, Ryan Taylor Krone
  • Patent number: 11395665
    Abstract: A neurovascular catheter having an atraumatic navigational tip is disclosed. The catheter includes an elongate flexible tubular body, a distal zone of the tubular body comprising: a tubular inner liner; a helical coil surrounding the inner liner and having a distal end, a tubular jacket surrounding the helical coil, and extending distally beyond the helical coil distal end to terminate in a catheter distal face, and a tubular radiopaque marker embedded in the tubular jacket. The catheter distal face comprises a first section that resides on a first plane which crosses a longitudinal axis of the tubular body at a first angle within the range of from about 35 degrees to about 55 degrees, and a second section that resides on a second plane which crosses the longitudinal axis of the tubular body at a second angle within the range from about 55 degrees to about 90 degrees.
    Type: Grant
    Filed: October 1, 2019
    Date of Patent: July 26, 2022
    Assignee: Incept, LLC
    Inventors: Yi Yang, Ashoor Shahbazi Yourgenlow, Lisa M. Young, Brandon Yee, Marc Russell, Ryan Taylor Krone
  • Patent number: 11311303
    Abstract: A neurovascular catheter having an angled distal tip has an elongate flexible tubular body with a proximal end, a distal end and a side wall defining a central lumen. The side wall has a helical coil. A tubular jacket surrounds the helical coil, and extending distally beyond the helical coil distal end to terminate in a catheter distal face. A tubular radiopaque marker is embedded in the tubular jacket in between the distal end of the coil and the distal face. The distal face resides on a plane which crosses a longitudinal axis of the tubular body at an angle within the range of from about 35 degrees to about 55 degrees. The marker has a proximal face that is approximately perpendicular to the longitudinal axis and a distal face that resides on a plane which crosses the longitudinal axis at an angle within the range of from about 35 degrees to about 55 degrees.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: April 26, 2022
    Assignee: Incept, LLC
    Inventors: Yi Yang, Farhad Khosravi, Lisa M. Young, Ashoor Shahbazi Yourgenlow, Brandon Yee
  • Publication number: 20220047849
    Abstract: A neurovascular catheter can have an elongate flexible tubular body. The tubular body can have a proximal end, an inclined distal end, and a side wall that defines a central lumen. The neurovascular catheter can further have a distal leading tip on a first side of the inclined distal end. The neurovascular catheter can further have a preset curve in a distal zone of the tubular body such that wherein the distal leading tip lies on a concave side of the curve.
    Type: Application
    Filed: August 10, 2021
    Publication date: February 17, 2022
    Inventors: Brandon Yee, Chad C. Roue, Daniel Davis, Yi Yang, Ashoor Shahbazi Yourgenlow, Jhustin Y. Scarlett, Miranda M. Ray, Farhad Khosravi
  • Publication number: 20220001141
    Abstract: An enhanced flexibility catheter is provided, such as for distal neurovascular access or aspiration. The catheter includes an elongate flexible body, having a proximal end, a distal end, and a side wall defining a central lumen. The side wall is formed from a plurality of adjacent tubular segments. At least one segment has a first end face inclined at a non normal angle to a longitudinal axis of the catheter. An adjacent segment has a second end face inclined at a complementary angle to form an inclined junction at the transition between the two segments. The transition serves to provide superior bending characteristics along the length of the catheter shaft.
    Type: Application
    Filed: September 14, 2021
    Publication date: January 6, 2022
    Inventors: Ashoor Shahbazi Yourgenlow, Lex Philip Jansen, Brandon Yee, David Blum, Yi Yang, Hao Doan
  • Patent number: 11207497
    Abstract: A neurovascular catheter has enhanced tensile strength to resist distal tip detachment during proximal retraction past an obstruction. The catheter includes an elongated flexible tubular body, having a proximal end, a distal end and a side wall defining a central lumen. A radiopaque marker is provided adjacent to the distal end. The tensile support extends axially inside the side wall and is attached to the radiopaque marker, to tether the marker to the catheter body. In one implementation, the tensile support may at least partially wrap around the marker. The marker may have a tubular sidewall with a feature to increase compressibility, such as at least one compression gap in a proximal portion of the side wall.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: December 28, 2021
    Assignee: Imperative Care, Inc.
    Inventors: Brandon Yee, Chad C. Roue, Daniel Davis, Yi Yang, Ashoor Shahbazi Yourgenlow, Jhustin Y. Scarlett, Miranda M. Ray, Farhad Khosravi
  • Publication number: 20210378696
    Abstract: A neurovascular catheter having an elongate flexible tubular body. The body can have a catheter distal face residing on a first plane being at a first nonorthogonal angle relative to the longitudinal axis. The body can have a radiopaque marker being positioned in a distal zone of the tubular body and being proximal to the catheter distal face. The marker can have a marker distal face at least partially residing on a second plane being at a second nonorthogonal angle relative to the longitudinal axis. The first plane can be approximately parallel to the second plane.
    Type: Application
    Filed: August 24, 2021
    Publication date: December 9, 2021
    Inventors: Yi Yang, Ashoor Shahbazi Yourgenlow, Lisa M. Young, Brandon Yee
  • Patent number: 11123090
    Abstract: A neurovascular catheter having an angled distal tip has an elongate flexible tubular body with a proximal end, a distal end and a side wall defining a central lumen. The side wall has a helical coil. A tubular jacket surrounds the helical coil, and extending distally beyond the helical coil distal end to terminate in a catheter distal face. A tubular radiopaque marker is embedded in the tubular jacket in between the distal end of the coil and the distal face. The distal face resides on a plane which crosses a longitudinal axis of the tubular body at an angle within the range of from about 35 degrees to about 55 degrees. The marker has a proximal face that is approximately perpendicular to the longitudinal axis and a distal face that resides on a plane which crosses the longitudinal axis at an angle within the range of from about 35 degrees to about 55 degrees.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: September 21, 2021
    Assignee: Incept, LLC
    Inventors: Yi Yang, Ashoor Shahbazi Yourgenlow, Lisa M. Young, Brandon Yee
  • Publication number: 20200306501
    Abstract: A catheter is provided comprising localized regions of modified flexibility. The regions of modified flexibility may comprise a softened inner liner, for example softened via stretching the inner liner or disposing a plurality of holes in the inner liner, to modify the bending stiffness and/or tensile stiffness of the catheter. The catheter may further include an axially extending filament that at least partially overlaps the softened portion of the inner liner. The axially extending filament may include an anchoring section to anchor the at least one axially extending filament in a section of the catheter that includes the helical coil.
    Type: Application
    Filed: March 28, 2020
    Publication date: October 1, 2020
    Inventors: Brandon Yee, Ashoor Shahbazi Yourgenlow, Yi Yang, Farhad Khosravi, Joseph Rimsa
  • Patent number: 10786270
    Abstract: A neurovascular aspiration catheter has an elliptical distal aspiration port. The catheter has an elongate flexible tubular body comprising a distal port and a side wall defining a central lumen in communication with the port. A tubular radiopaque marker is embedded in the side wall and has a proximal face and a distal face. The distal face of the radiopaque marker inclines at an angle within a range of from about 45 degrees to about 80 degrees relative to the longitudinal axis of the central lumen. The distal port comprises an elliptical opening with an area that is at least about 105% of a cross-sectional area of the central lumen.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: September 29, 2020
    Assignee: Imperative Care, Inc.
    Inventors: Yi Yang, Ashoor Shahbazi Yourgenlow, Lisa M. Young, Brandon Yee
  • Publication number: 20200297972
    Abstract: Disclosed is a tubular wire coil in which the wire varies in diameter over the length of the coil. The coil can be used to create a coiled reinforcement member for a tubular body, having different physical properties along the length of the body without the need for welds or joints to connect different wire segments. The coil can thus reduce unwanted catheter tip or welded joint stiffness without sacrificing desired proximal stiffness in, for example, a catheter such as a neurovascular catheter.
    Type: Application
    Filed: February 26, 2020
    Publication date: September 24, 2020
    Inventors: Brandon Yee, Ashoor Shahbazi Yourgenlow, Yi Yang, Michael Luna
  • Publication number: 20200205845
    Abstract: A neurovascular catheter having an atraumatic navigational tip is disclosed. The catheter includes an elongate flexible tubular body, a distal zone of the tubular body comprising: a tubular inner liner; a helical coil surrounding the inner liner and having a distal end, a tubular jacket surrounding the helical coil, and extending distally beyond the helical coil distal end to terminate in a catheter distal face, and a tubular radiopaque marker embedded in the tubular jacket. The catheter distal face comprises a first section that resides on a first plane which crosses a longitudinal axis of the tubular body at a first angle within the range of from about 35 degrees to about 55 degrees, and a second section that resides on a second plane which crosses the longitudinal axis of the tubular body at a second angle within the range from about 55 degrees to about 90 degrees.
    Type: Application
    Filed: October 1, 2019
    Publication date: July 2, 2020
    Inventors: Yi Yang, Ashoor Shahbazi Yourgenlow, Lisa M. Young, Brandon Yee, Marc Russell, Ryan Taylor Krone
  • Publication number: 20200155181
    Abstract: A neurovascular aspiration catheter has an elliptical distal aspiration port. The catheter has an elongate flexible tubular body comprising a distal port and a side wall defining a central lumen in communication with the port. A tubular radiopaque marker is embedded in the side wall and has a proximal face and a distal face. The distal face of the radiopaque marker inclines at an angle within a range of from about 45 degrees to about 80 degrees relative to the longitudinal axis of the central lumen. The distal port comprises an elliptical opening with an area that is at least about 105% of a cross-sectional area of the central lumen.
    Type: Application
    Filed: December 5, 2019
    Publication date: May 21, 2020
    Inventors: Yi Yang, Ashoor Shahbazi Yourgenlow, Lisa M. Young, Brandon Yee