Patents by Inventor Tony M. Chou

Tony M. Chou 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).

  • INTERVENTIONAL CATHETER SYSTEM AND METHODS
    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
  • RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD
    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
  • RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD
    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
  • Methods and systems for establishing retrograde carotid arterial blood flow
    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
  • Rapid aspiration thrombectomy system and method
    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
  • ASPIRATION CATHETER SYSTEMS AND METHODS OF USE
    Publication number: 20190351182
    Abstract: Described are methods, systems, and devices for facilitation of intraluminal medical procedures within the neurovasculature including catheters and catheter advancement elements.
    Type: Application
    Filed: May 16, 2019
    Publication date: November 21, 2019
    Inventors: Tony M. Chou, Scott D. Wilson, Vera Shinsky
  • Methods and systems for treatment of acute ischemic stroke
    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
  • Rapid aspiration thrombectomy system and method
    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
  • Methods and systems for establishing retrograde carotid arterial blood flow
    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
  • Anchoring delivery system and methods
    Patent number: 10426497
    Abstract: An anchoring delivery system for use in an intracranial artery is provided including a tethering device having an elongated tether and an anchor coupled to a distal end of the tether. The anchor is deployable from a low profile configuration to a higher profile configuration to fix the distal end of the tether at an anchoring site in an anchoring vessel. The tethering device is configured to be used with a guide-sheath having a lumen configured to receive the tether. Related devices, systems, and methods are also described.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: October 1, 2019
    Assignee: Route 92 Medical, Inc.
    Inventors: Tony M. Chou, Joey English, Randolf von Oepen, Scott D. Wilson, Kirsten Valley, Phil Evard
  • SYSTEMS AND METHODS FOR TREATING A CAROTID ARTERY
    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
  • METHODS AND SYSTEMS FOR ESTABLISHING RETROGRADE CAROTID ARTERIAL BLOOD FLOW
    Publication number: 20190262530
    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: May 13, 2019
    Publication date: August 29, 2019
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • METHODS AND SYSTEMS FOR ESTABLISHING RETROGRADE CAROTID ARTERIAL BLOOD FLOW
    Publication number: 20190231962
    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: April 8, 2019
    Publication date: August 1, 2019
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Suture delivery device
    Patent number: 10357242
    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: November 6, 2015
    Date of Patent: July 23, 2019
    Assignee: Silk Road Medical, Inc.
    Inventors: Michi E. Garrison, Gregory M. Hyde, Richard J. Renati, Alan K. Schaer, Tony M. Chou
  • Methods and systems for treatment of acute ischemic stroke
    Patent number: 10327790
    Abstract: Described are methods and systems for transcervical access of the cerebral arterial vasculature and treatment of cerebral occlusions, including ischemic stroke. The methods and devices may include methods and devices which may provide aspiration and passive flow reversal, those which protect the cerebral penumbra during the procedure to minimize injury to brain, as well as distal catheters and devices to remove an occlusion. The methods and devices that provide passive flow reversal may also offer to the user a degree of flow control. Devices and methods which provide a way to securely close the access site in the carotid artery to avoid the potentially devastating consequences of a transcervical hematoma are also described.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: June 25, 2019
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou, Gregory M. Hyde, Alan K. Schaer
  • Methods and systems for establishing retrograde carotid arterial blood flow
    Patent number: 10286139
    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: December 5, 2018
    Date of Patent: May 14, 2019
    Assignee: Silk Road Medical, Inc.
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Methods And Systems For Establishing Retrograde Carotid Arterial Blood Flow
    Publication number: 20190105439
    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: December 5, 2018
    Publication date: April 11, 2019
    Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
  • Interventional catheter system and methods
    Patent number: 10226598
    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: June 5, 2017
    Date of Patent: March 12, 2019
    Assignee: Silk Road Medical, Inc.
    Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard J. Renati, Alan K. Schaer
  • Methods and systems for treatment of acute ischemic stroke
    Patent number: 10226563
    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: December 22, 2009
    Date of Patent: March 12, 2019
    Assignee: Silk Road Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou, Gregory M. Hyde
  • Methods and systems for treatment of acute ischemic stroke
    Patent number: 10213582
    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: December 19, 2017
    Date of Patent: February 26, 2019
    Assignee: Route 92 Medical, Inc.
    Inventors: Michi E. Garrison, Tony M. Chou