Patents by Inventor Michi E. Garrison

Michi E. Garrison 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: 20230001161
    Abstract: An interventional catheter is adapted for treating a blood vessel. In an embodiment, the catheter includes an elongate shaft sized for insertion in a blood vessel and a stent positioned on a distal region of the elongate shaft. An expandable dilation member is coupled to a distal region of the elongate shaft. The expandable dilation member is adapted to expand outward. A stent containment member is positioned over the elongate shaft and the stent to contain the stent in a collapsed state.
    Type: Application
    Filed: May 20, 2022
    Publication date: January 5, 2023
    Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard J. Renati, Alan K. Schaer
  • Patent number: 11534575
    Abstract: A system of devices for treating an artery includes an arterial access sheath adapted to introduce an interventional catheter into an artery and an elongated dilator positionable within the internal lumen of the sheath body. The system also includes a catheter formed of an elongated catheter body sized and shaped to be introduced via a carotid artery access site into a common carotid artery through the internal lumen of the arterial access sheath. The catheter has an overall length and a distal most section length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use.
    Type: Grant
    Filed: May 19, 2022
    Date of Patent: December 27, 2022
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou
  • Publication number: 20220370767
    Abstract: A system of devices for treating an artery includes an arterial access sheath adapted to introduce an interventional catheter into an artery and an elongated dilator positionable within the internal lumen of the sheath body. The system also includes a catheter formed of an elongated catheter body sized and shaped to be introduced via a carotid artery access site into a common carotid artery through the internal lumen of the arterial access sheath. The catheter has an overall length and a distal most section length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use.
    Type: Application
    Filed: August 8, 2022
    Publication date: November 24, 2022
    Inventors: Michi E. Garrison, Tony M. Chou
  • Publication number: 20220346827
    Abstract: The present technology is directed generally to devices, systems, and methods for capturing and cutting fibrous and trabeculated structures (such as synechiae) in vessel lumens. In one embodiment, the present technology includes an intraluminal tissue modifying system configured to capture the fibrous structures, put the fibrous structures in tension, and controllably cut through the fibrous structures without applying appreciable additional force to the vessel wall. The system may include an expandable capture device and a cutting device.
    Type: Application
    Filed: December 22, 2021
    Publication date: November 3, 2022
    Inventors: Fletcher T. Wilson, David Batten, Benjamin J. Clark, Michi E. Garrison
  • Publication number: 20220331555
    Abstract: Intravascular devices and methods for intramural delivery of dissection fluids and infusates are disclosed herein. In some embodiments, the systems include an infusion assembly that can access a position in vessel adjacent an infusion site and advance a tissue manipulation component into the infusion site to deliver a therapeutic infusate. The infusion site can be an intraluminal space, such as within an obstructive material, adjacent the obstructive material, and/or within a boundary layer between the obstructive material and a vessel wall. The infusion assembly can further deliver an infusate that includes a therapeutic drug or other agent into the infusion site.
    Type: Application
    Filed: April 29, 2022
    Publication date: October 20, 2022
    Inventors: Fletcher T. Wilson, Jeffrey M. Elkins, Kent D. Dell, Herbert Mendoza, Michi E. Garrison
  • Publication number: 20220287817
    Abstract: According to some embodiments, the present technology includes device for removing obstructive material from a blood vessel lumen. For example, the device can comprise an elongated member, a cutting portion carried by a distal region of the elongated member, and a capture portion carried by the distal region of the elongated member. The cutting portion can comprise a blade configured to separate at least a portion of the obstructive material from the blood vessel wall, and the capture portion can comprise a mesh structure configured to enmesh and/or capture at least a portion of the obstructive material.
    Type: Application
    Filed: March 10, 2022
    Publication date: September 15, 2022
    Inventors: Michi E. Garrison, Kent D. Dell, Jeffrey M. Elkins, Daniel T. Lagoe, Herbert M. Mendoza
  • Publication number: 20220280753
    Abstract: A system of devices for treating an artery includes an arterial access sheath adapted to introduce an interventional catheter into an artery and an elongated dilator positionable within the internal lumen of the sheath body. The system also includes a catheter formed of an elongated catheter body sized and shaped to be introduced via a carotid artery access site into a common carotid artery through the internal lumen of the arterial access sheath. The catheter has an overall length and a distal most section length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use.
    Type: Application
    Filed: May 19, 2022
    Publication date: September 8, 2022
    Inventors: Michi E. Garrison, Tony M. Chou
  • Patent number: 11433226
    Abstract: Devices and methods establish and facilitate retrograde or reverse flow blood circulation in the region of the carotid artery bifurcation in order to limit or prevent the release of emboli into the cerebral vasculature such as into the internal carotid artery. The methods are particularly useful for interventional procedures performed through a transcarotid approach or transfemoral into the common carotid artery.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: September 6, 2022
    Assignee: Silk Road Medical, Inc.
    Inventors: Stewart M. Kume, Sieu T. Duong, Michi E. Garrison
  • Patent number: 11395903
    Abstract: An intravascular access system for facilitation of intraluminal medical procedures within the neurovasculature through an access sheath. The system includes an aspiration or support catheter having a flexible, distal luminal portion having an inner diameter defining a lumen extending between a proximal opening at a proximal end of the luminal portion and a distal opening at a distal end of the luminal portion. The catheter has a rigid spine coupled to at least the proximal end of the luminal portion and extending proximally therefrom. The system includes a dilator having a flexible, distal dilator portion sized to be received within the lumen of the luminal portion. Associated systems, devices, and methods of use are also described.
    Type: Grant
    Filed: October 8, 2019
    Date of Patent: July 26, 2022
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
  • Patent number: 11389155
    Abstract: A suture-based vessel closure device can perform the dilation of an arteriotomy puncture and does not require previous dilation of the arteriotomy puncture by a separate device or by a procedural sheath dilator. The suture-based vessel closure device can place one or more sutures across the vessel access site such that, when the suture ends are tied off after sheath removal, the stitch or stitches provide hemostasis to the access site.
    Type: Grant
    Filed: July 16, 2019
    Date of Patent: July 19, 2022
    Assignee: Silk Road Medical, Inc.
    Inventors: Michi E. Garrison, Gregory M. Hyde, Richard J. Renati, Alan K. Schaer, Tony M. Chou
  • Patent number: 11383064
    Abstract: An intravascular access system for facilitation of intraluminal medical procedures within the neurovasculature through an access sheath. The system includes an aspiration or support catheter having a flexible, distal luminal portion having an inner diameter defining a lumen extending between a proximal opening at a proximal end of the luminal portion and a distal opening at a distal end of the luminal portion. The catheter has a rigid spine coupled to at least the proximal end of the luminal portion and extending proximally therefrom. The system includes a dilator having a flexible, distal dilator portion sized to be received within the lumen of the luminal portion. Associated systems, devices, and methods of use are also described.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: July 12, 2022
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
  • Patent number: 11364369
    Abstract: An interventional catheter is adapted for treating a blood vessel. In an embodiment, the catheter includes an elongate shaft sized for insertion in a blood vessel and a stent positioned on a distal region of the elongate shaft. An expandable dilation member is coupled to a distal region of the elongate shaft. The expandable dilation member is adapted to expand outward. A stent containment member is positioned over the elongate shaft and the stent to contain the stent in a collapsed state.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: June 21, 2022
    Assignee: Silk Road Medical, Inc.
    Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard J. Renati, Alan K. Schaer
  • Patent number: 11364332
    Abstract: Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: June 21, 2022
    Assignee: Silk Road Medical, Inc.
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Patent number: 11318282
    Abstract: A system of devices for treating an artery includes an arterial access sheath adapted to introduce an interventional catheter into an artery and an elongated dilator positionable within the internal lumen of the sheath body. The system also includes a catheter formed of an elongated catheter body sized and shaped to be introduced via a carotid artery access site into a common carotid artery through the internal lumen of the arterial access sheath. The catheter has an overall length and a distal most section length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: May 3, 2022
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou
  • Patent number: 11305094
    Abstract: An intravascular access system for facilitation of intraluminal medical procedures within the neurovasculature through an access sheath. The system includes an aspiration or support catheter having a flexible, distal luminal portion having an inner diameter defining a lumen extending between a proximal opening at a proximal end of the luminal portion and a distal opening at a distal end of the luminal portion. The catheter has a rigid spine coupled to at least the proximal end of the luminal portion and extending proximally therefrom. The system includes a dilator having a flexible, distal dilator portion sized to be received within the lumen of the luminal portion. Associated systems, devices, and methods of use are also described.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: April 19, 2022
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
  • Patent number: 11291799
    Abstract: An interventional catheter for treating an artery includes an elongated body sized and shaped to be transcervically introduced into a common carotid artery at an access location in the neck. The elongated body has an overall length such that the distal most section can be positioned in an intracranial artery and at least a portion of the proximal most section is positioned in the common carotid artery during use.
    Type: Grant
    Filed: August 19, 2019
    Date of Patent: April 5, 2022
    Assignee: Silk Road Medical, Inc.
    Inventors: Michi E. Garrison, Scott D. Wilson
  • Publication number: 20220040502
    Abstract: Described herein are methods and devices for selectively applying either fluids (e.g., anesthetics, nerve-blockers, etc.) or energy, such as radiofrequency or ultrasound energy, to a target tissue from within a blood vessel while minimizing the amount of fluid or energy applied to non-target tissue. The catheters described herein may include an elongate body, a directional injector, and one or more holdfasts for securing the catheter. In addition, catheters can include energy applying features for delivering energy to the target tissue.
    Type: Application
    Filed: August 19, 2021
    Publication date: February 10, 2022
    Inventors: Michi E. Garrison, Richard M. Ruedy
  • Patent number: 11234727
    Abstract: The present technology is directed generally to devices, systems, and methods for capturing and cutting fibrous and trabeculated structures (such as synechiae) in vessel lumens. In one embodiment, the present technology includes an intraluminal tissue modifying system configured to capture the fibrous structures, put the fibrous structures in tension, and controllably cut through the fibrous structures without applying appreciable additional force to the vessel wall. The system may include an expandable capture device and a cutting device.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: February 1, 2022
    Assignee: InterVene, Inc.
    Inventors: Fletcher T. Wilson, David Batten, Benjamin J. Clark, Michi E. Garrison
  • Publication number: 20220016397
    Abstract: Intravascular devices and methods for intramural delivery of dissection fluids and infusates are disclosed herein. In some embodiments, the systems include an infusion assembly that can access a vessel wall at a depth within a layer of the vessel wall and advance a tissue manipulation component at approximately the same depth within the vessel wall to create an intramural space within the vessel layer. The infusion assembly can further deliver an infusate that includes a therapeutic drug or other agent into the intramural space.
    Type: Application
    Filed: July 16, 2021
    Publication date: January 20, 2022
    Inventors: Fletcher T. Wilson, Jeffrey M. Elkins, Kent D. Dell, Herbert Mendoza, Michi E. Garrison
  • Patent number: 11224721
    Abstract: An intravascular access system for facilitation of intraluminal medical procedures within the neurovasculature through an access sheath. The system includes an aspiration or support catheter having a flexible, distal luminal portion having an inner diameter defining a lumen extending between a proximal opening at a proximal end of the luminal portion and a distal opening at a distal end of the luminal portion. The catheter has a rigid spine coupled to at least the proximal end of the luminal portion and extending proximally therefrom. The system includes a dilator having a flexible, distal dilator portion sized to be received within the lumen of the luminal portion. Associated systems, devices, and methods of use are also described.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: January 18, 2022
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson