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: 20250144281
    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: January 10, 2025
    Publication date: May 8, 2025
    Applicant: Silk Road Medical, Inc.
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Patent number: 12290278
    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: Grant
    Filed: October 15, 2024
    Date of Patent: May 6, 2025
    Assignee: Intervene, Inc.
    Inventors: Michi E. Garrison, Kent D. Dell, Jeffrey M. Elkins, Daniel T. Lagoe, Herbert M. Mendoza
  • Patent number: 12285578
    Abstract: Disclosed is an arterial access sheath for introducing an interventional device into an artery. The arterial access sheath includes an elongated body sized and shaped to be transcervically introduced into a common carotid artery at an access location in the neck and an internal lumen in the elongated body having a proximal opening in a proximal region of the elongated body and a distal opening in a distal region of the elongated body. The internal lumen provides a passageway for introducing an interventional device into the common carotid artery when the elongated body is positioned in the common carotid artery. The elongated body has a proximal section and a distalmost section that is more flexible than the proximal section. A ratio of an entire length of the distalmost section to an overall length of the sheath body is one tenth to one half the overall length of the sheath body.
    Type: Grant
    Filed: August 11, 2023
    Date of Patent: April 29, 2025
    Assignee: Silk Road Medical, Inc.
    Inventors: Stewart M. Kume, Michi E. Garrison, Michael P. Wallace, Herbert Mendoza, Marlon Moreno
  • Publication number: 20250127975
    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: October 23, 2024
    Publication date: April 24, 2025
    Inventors: Stewart M. Kume, Sieu T. Duong, Michi E. Garrison
  • Publication number: 20250114506
    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 21, 2024
    Publication date: April 10, 2025
    Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard Renati, Alan Schaer
  • Publication number: 20250114507
    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: October 21, 2024
    Publication date: April 10, 2025
    Inventors: Michi E. Garrison, Tony M. Chou, Gregory M. Hyde
  • Publication number: 20250114586
    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 24, 2024
    Publication date: April 10, 2025
    Inventors: Ari Ryan, Alan K. Schaer, Gregory M. Hyde, Richard J. Renati, Michi E. Garrison
  • Patent number: 12262911
    Abstract: An arterial access device has an internal lumen and a proximal port, the arterial access device sized and shaped to be inserted directly into an arterial access site in the common carotid artery such that the lumen provides a passageway for an interventional device to be inserted via the proximal port into the carotid artery. The arterial access device has a distal portion that is configured to be inserted into an arterial pathway through the access site, and a proximal portion configured to extend outward from the access site when the distal portion is in the arterial pathway.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: April 1, 2025
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou
  • Patent number: 12245763
    Abstract: A device is configured for closing an aperture in a wall of a blood vessel. An embodiment of the device includes a body and at least one suture element held within the body. A suture capture rod is positioned within the body and is operatively associated with the suture element and arranged to pass the suture element through a vessel wall such that opposed portions of the suture element extend from the vessel wall. A removable guidewire segment is removably attached to a distal end of the body.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: March 11, 2025
    Assignee: Silk Road Medical, Inc.
    Inventors: Ronald Hentges, Michi E. Garrison
  • Patent number: 12220305
    Abstract: Devices and methods are configured to allow transcarotid or subclavian access via the common carotid artery to the native aortic valve, and implantation of a prosthetic aortic valve into the heart. The devices and methods also provide means for embolic protection during such an endovascular aortic valve implantation procedure.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: February 11, 2025
    Assignee: Silk Road Medical, Inc.
    Inventors: Erica J. Rogers, Michael P. Wallace, Sumaira Macdonald, Michi E. Garrison
  • Publication number: 20250032148
    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: October 15, 2024
    Publication date: January 30, 2025
    Inventors: Michi E. Garrison, Kent D. Dell, Jeffrey M. Elkins, Daniel T. Lagoe, Herbert M. Mendoza
  • Patent number: 12194216
    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: April 22, 2021
    Date of Patent: January 14, 2025
    Assignee: Silk Road Medical, Inc.
    Inventors: Stewart M. Kume, Sieu T. Duong, Michi E. Garrison
  • Patent number: 12194219
    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 11, 2021
    Date of Patent: January 14, 2025
    Assignee: Silk Road Medical, Inc.
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Publication number: 20250000498
    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: June 7, 2024
    Publication date: January 2, 2025
    Inventor: Michi E. Garrison
  • Patent number: 12156961
    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: June 11, 2021
    Date of Patent: December 3, 2024
    Assignee: Silk Road Medical, Inc.
    Inventors: Stewart M. Kume, Sieu T. Duong, Michi E. Garrison
  • Patent number: 12156960
    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: Grant
    Filed: March 19, 2021
    Date of Patent: December 3, 2024
    Assignee: Silk Road Medical, Inc.
    Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard Renati, Alan Schaer
  • Patent number: 12144915
    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: Grant
    Filed: April 17, 2023
    Date of Patent: November 19, 2024
    Assignee: Silk Road Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou, Gregory M. Hyde
  • Patent number: 12128204
    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: Grant
    Filed: August 2, 2019
    Date of Patent: October 29, 2024
    Assignee: Silk Road Medical, Inc.
    Inventors: Ari Ryan, Alan K. Schaer, Gregory M. Hyde, Richard J. Renati, Michi E. Garrison
  • Publication number: 20240341780
    Abstract: An aspiration device can be used to aspirate an obstruction from a blood vessel. The aspiration device is configured to allow controlled one-handed aspiration yet maintain a syringe plunger feel of vacuum. The aspiration device also allows one-handed injection to empty the device when needed. Furthermore, mechanisms enable one-handed locking of a plunger position of the device to maintain vacuum when the user releases the device.
    Type: Application
    Filed: December 8, 2023
    Publication date: October 17, 2024
    Inventors: Michi E. Garrison, Sieu T. Duong
  • Publication number: 20240341752
    Abstract: A device is configured for closing an aperture in a wall of a blood vessel. An embodiment of the device includes a body and at least one suture element held within the body. A suture capture rod is positioned within the body and is operatively associated with the suture element and arranged to pass the suture element through a vessel wall such that opposed portions of the suture element extend from the vessel wall. A removable guidewire segment is removably attached to a distal end of the body.
    Type: Application
    Filed: December 8, 2023
    Publication date: October 17, 2024
    Inventors: Ronald Hentges, Michi E. Garrison