Patents by Inventor Lisa M. Young
Lisa M. Young 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: 11395665Abstract: 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: GrantFiled: October 1, 2019Date of Patent: July 26, 2022Assignee: Incept, LLCInventors: Yi Yang, Ashoor Shahbazi Yourgenlow, Lisa M. Young, Brandon Yee, Marc Russell, Ryan Taylor Krone
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Publication number: 20220211975Abstract: A neurovascular catheter is provided, such as for distal neurovascular access or aspiration. The catheter includes an elongate flexible tubular body, having a proximal end, a distal end and a side wall defining a central lumen. A distal zone of the tubular body includes a tubular inner liner, a tie layer separated from the lumen by the inner liner, a helical coil surrounding the tie layer, an outer jacket surrounding the helical coil, and an opening at the distal end. Adjacent windings of the helical coil are spaced progressively further apart in the distal direction. The opening at the distal end of the tubular body is enlargeable from a first inside diameter for transluminal navigation to a second, larger inside diameter to facilitate aspiration of thrombus into the lumen.Type: ApplicationFiled: October 15, 2021Publication date: July 7, 2022Inventors: Yi Yang, Farhad Khosravi, Lisa M. Young
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Patent number: 11311303Abstract: 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: GrantFiled: September 13, 2019Date of Patent: April 26, 2022Assignee: Incept, LLCInventors: Yi Yang, Farhad Khosravi, Lisa M. Young, Ashoor Shahbazi Yourgenlow, Brandon Yee
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Publication number: 20210378696Abstract: 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: ApplicationFiled: August 24, 2021Publication date: December 9, 2021Inventors: Yi Yang, Ashoor Shahbazi Yourgenlow, Lisa M. Young, Brandon Yee
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Patent number: 11147949Abstract: A method of making a high flexibility distal zone on a neurovascular catheter is provided. The method includes the steps of dip coating a removable mandrel to form a tubular inner layer on the mandrel, coating the tubular inner layer with a tie layer, applying a helical coil to the outside of the tie layer, positioning a plurality of tubular segments, heating the tubular segments to form the high flexibility distal zone on the neurovascular catheter; and removing the mandrel.Type: GrantFiled: August 16, 2019Date of Patent: October 19, 2021Assignee: INCEPT, LLCInventors: Yi Yang, Farhad Khosravi, Lisa M. Young
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Patent number: 11123090Abstract: 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: GrantFiled: May 1, 2019Date of Patent: September 21, 2021Assignee: Incept, LLCInventors: Yi Yang, Ashoor Shahbazi Yourgenlow, Lisa M. Young, Brandon Yee
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Patent number: 10786270Abstract: 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: GrantFiled: December 5, 2019Date of Patent: September 29, 2020Assignee: Imperative Care, Inc.Inventors: Yi Yang, Ashoor Shahbazi Yourgenlow, Lisa M. Young, Brandon Yee
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Publication number: 20200205845Abstract: 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: ApplicationFiled: October 1, 2019Publication date: July 2, 2020Inventors: Yi Yang, Ashoor Shahbazi Yourgenlow, Lisa M. Young, Brandon Yee, Marc Russell, Ryan Taylor Krone
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Publication number: 20200155181Abstract: 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: ApplicationFiled: December 5, 2019Publication date: May 21, 2020Inventors: Yi Yang, Ashoor Shahbazi Yourgenlow, Lisa M. Young, Brandon Yee
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Publication number: 20200001046Abstract: 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: ApplicationFiled: September 13, 2019Publication date: January 2, 2020Inventors: Yi Yang, Farhad Khosravi, Lisa M. Young, Ashoor Shahbazi Yourgenlow, Brandon Yee
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Publication number: 20190366041Abstract: A method of making a high flexibility distal zone on a neurovascular catheter is provided. The method includes the steps of dip coating a removable mandrel to form a tubular inner layer on the mandrel, coating the tubular inner layer with a tie layer, applying a helical coil to the outside of the tie layer, positioning a plurality of tubular segments, heating the tubular segments to form the high flexibility distal zone on the neurovascular catheter; and removing the mandrel.Type: ApplicationFiled: August 16, 2019Publication date: December 5, 2019Inventors: Yi Yang, Farhad Khosravi, Lisa M. Young
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Publication number: 20190336727Abstract: 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: ApplicationFiled: May 1, 2019Publication date: November 7, 2019Inventors: Yi Yang, Ashoor Shahbazi Yourgenlow, Lisa M. Young, Brandon Yee
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Patent number: 10441745Abstract: A neurovascular catheter is provided, such as for distal neurovascular access or aspiration. The catheter includes an elongate flexible tubular body, having a proximal end, a distal end and a side wall defining a central lumen. A distal zone of the tubular body includes a tubular inner liner, a tie layer separated from the lumen by the inner liner, a helical coil surrounding the tie layer, an outer jacket surrounding the helical coil, and an opening at the distal end. Adjacent windings of the helical coil are spaced progressively further apart in the distal direction. The opening at the distal end of the tubular body is enlargeable from a first inside diameter for transluminal navigation to a second, larger inside diameter to facilitate aspiration of thrombus into the lumen.Type: GrantFiled: February 27, 2017Date of Patent: October 15, 2019Assignee: INCEPT, LLCInventors: Yi Yang, Farhad Khosravi, Lisa M. Young
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Patent number: 10183146Abstract: A method of making a high flexibility distal zone on a neurovascular catheter is provided. The method includes the steps of dip coating a removable mandrel to form a tubular inner layer on the mandrel, coating the tubular inner layer with a soft tie layer, applying a helical coil to the outside of the tie layer, positioning a plurality of tubular segments on the helical coil, heating the tubular segments to form the high flexibility distal zone on the neurovascular catheter; and removing the mandrel. The plurality of segments have durometers that decrease in a distal direction. The flexural load profile of the catheter as a function of catheter length is configured to provide enhanced distal flexibility while maintaining high backup support.Type: GrantFiled: February 27, 2017Date of Patent: January 22, 2019Assignee: Incept, LLCInventors: Yi Yang, Fred Khosravi, Lisa M. Young
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Patent number: 10183145Abstract: A 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. A distal zone of the side wall includes a tubular inner liner, a tie layer separated from the lumen by the inner liner, a helical coil surrounding the tie layer, adjacent windings of the coil spaced progressively further apart in the distal direction. An outer jacket surrounds the helical coil. The outer jacket is formed from a plurality of tubular segments positioned end to end, coaxially about the coil. The flexural load profile of the catheter as a function of catheter length is configured to provide enhanced distal flexibility while maintaining high backup support.Type: GrantFiled: February 24, 2017Date of Patent: January 22, 2019Assignee: Incept, LLCInventors: Yi Yang, Fred Khosravi, Lisa M. Young
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Patent number: 10183147Abstract: A neurovascular catheter extension segment is provided, such as for distal neurovascular access or aspiration. The neurovascular catheter extension segment includes 1) an elongate flexible control wire having a proximal end and a distal end and 2) a tubular extension segment having a side wall defining a central lumen carried by the distal end of the control wire. The side wall of the tubular extension segment includes a tubular inner liner, a tie layer separated from the lumen by the inner liner, a helical coil surrounding the tie layer, and an outer jacket surrounding the helical coil. The extension segment may be introduced into the proximal end of a neurovascular catheter and advanced distally to extend beyond the catheter and thereby extend the reach of the catheter.Type: GrantFiled: February 27, 2017Date of Patent: January 22, 2019Assignee: Incept, LLCInventors: Yi Yang, Fred Khosravi, Lisa M. Young
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Patent number: 10179224Abstract: An enhanced flexibility neurovascular 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. A distal zone of the side wall includes an outer jacket surrounding a helical coil, and the outer jacket is formed from a plurality of tubular segments positioned coaxially about the coil. A proximal one of the tubular segments has a durometer of at least about 60D, and a distal one of the tubular segments has a durometer of no more than about 35D. An axially extending filament within the side wall extends at least about the most distal 10 cm of the length of the catheter. The axially extending filament serves as a tension support and resists elongation of the catheter wall under tension, such as when the catheter is being proximally retracted through tortuous vasculature.Type: GrantFiled: February 27, 2017Date of Patent: January 15, 2019Assignee: Incept, LLCInventors: Yi Yang, Fred Khosravi, Lisa M. Young
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Publication number: 20170252536Abstract: A 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. A distal zone of the side wall includes a tubular inner liner, a tie layer separated from the lumen by the inner liner, a helical coil surrounding the tie layer, adjacent windings of the coil spaced progressively further apart in the distal direction. An outer jacket surrounds the helical coil. The outer jacket is formed from a plurality of tubular segments positioned end to end, coaxially about the coil. The flexural load profile of the catheter as a function of catheter length is configured to provide enhanced distal flexibility while maintaining high backup support.Type: ApplicationFiled: February 24, 2017Publication date: September 7, 2017Inventors: Yi Yang, Fred Khosravi, Lisa M. Young
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Publication number: 20170238951Abstract: A neurovascular catheter is provided, such as for distal neurovascular access or aspiration. The catheter includes an elongate flexible tubular body, having a proximal end, a distal end and a side wall defining a central lumen. A distal zone of the tubular body includes a tubular inner liner, a tie layer separated from the lumen by the inner liner, a helical coil surrounding the tie layer, an outer jacket surrounding the helical coil, and an opening at the distal end. Adjacent windings of the helical coil are spaced progressively further apart in the distal direction. The opening at the distal end of the tubular body is enlargeable from a first inside diameter for transluminal navigation to a second, larger inside diameter to facilitate aspiration of thrombus into the lumen.Type: ApplicationFiled: February 27, 2017Publication date: August 24, 2017Inventors: Yi Yang, Fred Khosravi, Lisa M. Young
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Publication number: 20170239447Abstract: A neurovascular catheter extension segment is provided, such as for distal neurovascular access or aspiration. The neurovascular catheter extension segment includes 1) an elongate flexible control wire having a proximal end and a distal end and 2) a tubular extension segment having a side wall defining a central lumen carried by the distal end of the control wire. The side wall of the tubular extension segment includes a tubular inner liner, a tie layer separated from the lumen by the inner liner, a helical coil surrounding the tie layer, and an outer jacket surrounding the helical coil. The extension segment may be introduced into the proximal end of a neurovascular catheter and advanced distally to extend beyond the catheter and thereby extend the reach of the catheter.Type: ApplicationFiled: February 27, 2017Publication date: August 24, 2017Inventors: Yi Yang, Fred Khosravi, Lisa M. Young