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).

  • Patent number: 10569049
    Abstract: A system of devices for treating an artery includes an arterial access sheath adapted tointroduce 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: June 16, 2017
    Date of Patent: February 25, 2020
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou
  • Publication number: 20200054871
    Abstract: Systems and methods are adapted for treating the carotid artery. The systems include interventional catheters and blood vessel access devices that are adapted for transcervical insertion into the carotid artery. Embodiments of the systems and methods can be used in combination with embolic protection systems including blood flow reversal mechanisms, arterial filters, and arterial occlusion devices.
    Type: Application
    Filed: August 2, 2019
    Publication date: February 20, 2020
    Inventors: Ari Ryan, Alan K. Schaer, Gregory M. Hyde, Richard J. Renati, Michi E. Garrison
  • Publication number: 20200046940
    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: Application
    Filed: October 8, 2019
    Publication date: February 13, 2020
    Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
  • Publication number: 20200046939
    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: Application
    Filed: October 8, 2019
    Publication date: February 13, 2020
    Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
  • Publication number: 20200038576
    Abstract: Methods and devices are disclosed that enable safe, rapid and relatively short and straight access to the cerebral arteries for the introduction of interventional devices to treat acute ischemic stroke. In addition, the disclosed methods and devices provide means to securely close the access site to the cerebral arteries to avoid the potentially devastating consequences of a transcervical hematoma.
    Type: Application
    Filed: March 8, 2019
    Publication date: February 6, 2020
    Inventors: Michi E. Garrison, Tony M. Chou, Gregory M. Hyde
  • Patent number: 10543307
    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: June 14, 2018
    Date of Patent: January 28, 2020
    Assignee: Silk Road Medical, Inc.
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Publication number: 20200016369
    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: Application
    Filed: September 26, 2019
    Publication date: January 16, 2020
    Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
  • Publication number: 20200016321
    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: Application
    Filed: September 24, 2019
    Publication date: January 16, 2020
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Publication number: 20200009406
    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: March 14, 2019
    Publication date: January 9, 2020
    Inventors: Michi E. Garrison, Richard M. Ruedy
  • Publication number: 20190388654
    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: February 21, 2019
    Publication date: December 26, 2019
    Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard J. Renati, Alan K. Schaer
  • Publication number: 20190366070
    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: Application
    Filed: March 12, 2019
    Publication date: December 5, 2019
    Inventors: Stewart M. Kume, Sieu T. Duong, Michi E. Garrison
  • Publication number: 20190366042
    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: Application
    Filed: August 16, 2019
    Publication date: December 5, 2019
    Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
  • Publication number: 20190366043
    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: Application
    Filed: August 16, 2019
    Publication date: December 5, 2019
    Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
  • Patent number: 10485952
    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: November 7, 2017
    Date of Patent: November 26, 2019
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
  • Patent number: 10485917
    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: May 13, 2019
    Date of Patent: November 26, 2019
    Assignee: SILK ROAD MEDICAL, INC.
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Publication number: 20190350568
    Abstract: A vessel access and closure assist system is used for accessing a vessel to perform a vascular intervention. The system facilitates the delivery of a vessel closure device onto a blood vessel for closing an opening in the wall of the blood vessel. The vessel access and closure assist system includes a procedural introducer sheath that directly couples to a vessel closure device delivery sheath such that the procedural introducer sheath does not have to be exchanged with the vessel closure device delivery sheath.
    Type: Application
    Filed: January 17, 2019
    Publication date: November 21, 2019
    Inventor: Michi E. Garrison
  • Patent number: 10471233
    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: February 6, 2017
    Date of Patent: November 12, 2019
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou
  • Patent number: 10456555
    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: December 28, 2017
    Date of Patent: October 29, 2019
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
  • Patent number: 10426885
    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: October 10, 2017
    Date of Patent: October 1, 2019
    Assignee: Silk Road Medical, Inc.
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Publication number: 20190269538
    Abstract: Systems and methods are adapted for treating the carotid artery. The systems include interventional catheters and blood vessel access devices that are adapted for transcervical insertion into the carotid artery. Embodiments of the systems and methods can be used in combination with embolic protection systems including blood flow reversal mechanisms, arterial filters, and arterial occlusion devices.
    Type: Application
    Filed: October 1, 2018
    Publication date: September 5, 2019
    Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard Renati, Alan Schaer