Patents Assigned to Route 92 Medical, Inc.
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Patent number: 11925770Abstract: Methods, systems, and devices for facilitation of intraluminal medical procedures within the neurovasculature, the methods, systems and the devices including catheters and catheter advancement elements.Type: GrantFiled: April 7, 2023Date of Patent: March 12, 2024Assignee: Route 92 Medical, Inc.Inventors: Tony M. Chou, Scott D. Wilson, Vera Shinsky
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Patent number: 11871944Abstract: 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: GrantFiled: July 10, 2020Date of Patent: January 16, 2024Assignee: Route 92 Medical, Inc.Inventors: Michi E. Garrison, Tony M. Chou
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Patent number: 11806032Abstract: Described are methods, systems, devices for facilitation of intraluminal medical procedures within the neurovasculature. A catheter advancement device includes a flexible elongate body having a proximal end, a distal end, and a single lumen extending therebetween. The flexible elongate body has a proximal segment, an intermediate segment, and a tip segment. The proximal segment includes a hypotube coated with a polymer. The intermediate segment includes an unreinforced polymer having a durometer of no more than 72 D. The tip segment is formed of a polymer different from the intermediate segment and has a durometer of no more than about 35 D and a length of at least 5 cm. The tip segment has a tapered portion that tapers distally from a first outer diameter to a second outer diameter over a length of between 1 and 3 cm.Type: GrantFiled: December 16, 2022Date of Patent: November 7, 2023Assignee: Route 92 Medical, Inc.Inventors: Tony M. Chou, Scott D. Wilson
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Patent number: 11793972Abstract: 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: GrantFiled: January 19, 2021Date of Patent: October 24, 2023Assignee: Route 92 Medical, Inc.Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
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Patent number: 11793529Abstract: Described are methods, systems, devices for facilitation of intraluminal medical procedures within the neurovasculature. A catheter advancement device includes a flexible elongate body having a proximal end, a distal end, and a single lumen extending therebetween. The flexible elongate body has a proximal segment, an intermediate segment, and a tip segment. The proximal segment includes a hypotube coated with a polymer. The intermediate segment includes an unreinforced polymer having a durometer of no more than 72D. The tip segment is formed of a polymer different from the intermediate segment and has a durometer of no more than about 35D and a length of at least 5 cm. The tip segment has a tapered portion that tapers distally from a first outer diameter to a second outer diameter over a length of between 1 and 3 cm.Type: GrantFiled: August 8, 2022Date of Patent: October 24, 2023Assignee: Route 92 Medical, Inc.Inventors: Tony M. Chou, Scott D. Wilson
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Patent number: 11633571Abstract: 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: GrantFiled: March 17, 2020Date of Patent: April 25, 2023Assignee: Route 92 Medical, Inc.Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
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Patent number: 11633570Abstract: 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: GrantFiled: January 28, 2020Date of Patent: April 25, 2023Assignee: Route 92 Medical, Inc.Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
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Patent number: 11607523Abstract: A method of performing a medical procedure in a cerebral vessel of a patient including advancing a first catheter system towards an embolus within a cerebral blood vessel and a second catheter system towards the embolus through the first catheter, applying aspiration pressure through the lumen of the second catheter; anchoring a distal end of the second catheter onto the embolus via the aspiration pressure; applying a proximally-directed force on the second catheter; and advancing the first catheter over the second catheter towards the embolus while the distal end of the second catheter remains anchored onto the embolus; and automatically applying aspiration pressure within the first catheter upon the second catheter portion entering into the first catheter.Type: GrantFiled: May 16, 2019Date of Patent: March 21, 2023Assignee: Route 92 Medical, Inc.Inventor: Tony M. Chou
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Patent number: 11576691Abstract: Described are methods, systems, devices for facilitation of intraluminal medical procedures within the neurovasculature. A catheter advancement device includes a flexible elongate body having a proximal end, a distal end, and a single lumen extending therebetween. The flexible elongate body has a proximal segment, an intermediate segment, and a tip segment. The proximal segment includes a hypotube coated with a polymer. The intermediate segment includes an unreinforced polymer having a durometer of no more than 72D. The tip segment is formed of a polymer different from the intermediate segment and has a durometer of no more than about 35D and a length of at least 5 cm. The tip segment has a tapered portion that tapers distally from a first outer diameter to a second outer diameter over a length of between 1 and 3 cm.Type: GrantFiled: November 1, 2021Date of Patent: February 14, 2023Assignee: Route 92 Medical, Inc.Inventors: Tony M. Chou, Scott D. Wilson
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Patent number: 11547415Abstract: Method of endovascular intervention in neurovascular anatomy of a patient including deploying an anchor of a tethering device in an anchoring vessel of a neurovascular anatomy, the anchor coupled to a tether extending proximally from the anchor. Method includes advancing a guide-sheath over the tether of the tethering device anchored in the anchoring vessel and attached to the tether, the guide-sheath includes at least one lumen and a distal opening from the lumen. Method includes advancing a treatment device through the lumen of the guide-sheath and out the distal opening from the at least one lumen and through an entrance of a target intracranial vessel, and deploying the treatment device at a treatment site within the target intracranial vessel without a combined therapy of two or more anti-platelet therapeutic agents during a peri-procedural period. Related systems, devices, and methods are disclosed.Type: GrantFiled: July 21, 2017Date of Patent: January 10, 2023Assignee: Route 92 Medical, Inc.Inventors: Tony M. Chou, Joey English
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Patent number: 11534575Abstract: 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: GrantFiled: May 19, 2022Date of Patent: December 27, 2022Assignee: Route 92 Medical, Inc.Inventors: Michi E. Garrison, Tony M. Chou
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Patent number: 11399852Abstract: Described are methods, systems, devices for facilitation of intraluminal medical procedures within the neurovasculature. A catheter advancement device includes a flexible elongate body having a proximal portion coupled to a proximal end region of the flexible elongate body and extending proximally to a proximal-most end of the catheter advancement element. A hardness of the flexible elongate body transitions proximally towards increasingly harder materials up to the proximal portion forming a first plurality of material transitions. At least a portion of the flexible elongate body is formed of a plurality of layers including a reinforcement layer. An outer diameter of the flexible elongate body is sized to be positioned coaxially within a lumen of a catheter such that a distal tip portion of the flexible elongate body extends distally beyond a distal end of the catheter to aid in delivery of the catheter to an intracranial vessel.Type: GrantFiled: February 22, 2022Date of Patent: August 2, 2022Assignee: Route 92 Medical, Inc.Inventors: Scott D. Wilson, Tony M. Chou, Vera Shinsky, Philip Evard
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Patent number: 11400255Abstract: A method of performing a medical procedure in a cerebral vessel including advancing a guide sheath into an internal carotid artery; advancing a catheter within a lumen of the guide sheath until a distal end of the catheter is adjacent to an embolus in a cerebral vessel; activating a vacuum source to create a vacuum in a lumen of the catheter; and cyclically controlling the vacuum applied with a valve. The vacuum is cyclically controlled by opening the valve for a first time period, closing the valve for a second time period longer than the first time period, opening the valve for a third time period shorter than the first time period, then closing the valve for a fourth time period greater than the first time period, and repeating for at least 40 cycles.Type: GrantFiled: November 14, 2019Date of Patent: August 2, 2022Assignee: Route 92 Medical, Inc.Inventors: Tony M. Chou, Scott D. Wilson, Vera Shinsky, Casey Grey, John Miller
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Patent number: 11395903Abstract: 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: GrantFiled: October 8, 2019Date of Patent: July 26, 2022Assignee: Route 92 Medical, Inc.Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
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Patent number: 11383064Abstract: 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: GrantFiled: August 16, 2019Date of Patent: July 12, 2022Assignee: Route 92 Medical, Inc.Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
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Patent number: 11318282Abstract: 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: GrantFiled: September 8, 2017Date of Patent: May 3, 2022Assignee: Route 92 Medical, Inc.Inventors: Michi E. Garrison, Tony M. Chou
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Patent number: 11305094Abstract: 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: GrantFiled: January 19, 2021Date of Patent: April 19, 2022Assignee: Route 92 Medical, Inc.Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
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Patent number: 11229770Abstract: Methods, systems, and devices for facilitation of intraluminal medical procedures within the neurovasculature including a catheter advancement element an inner diameter that is at least about 0.014? up to about 0.024? and an outer diameter having at least one snug point. A difference between the inner diameter of the distal, catheter portion and the outer diameter of the tubular portion at the snug point is no more than about 0.010?. A tip portion located distal to the at least one snug point of the tubular portion has a length and tapers along at least a portion of the length of the tip portion, wherein the tip portion has a distal point located a distance of at least 5 mm proximal from the distal-most end of the catheter advancement element, the distal point having a bending force that is no greater than about 0.05 Newtons.Type: GrantFiled: August 2, 2019Date of Patent: January 25, 2022Assignee: Route 92 Medical, Inc.Inventors: Tony M. Chou, Scott D. Wilson, Vera Shinsky
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Patent number: 11224721Abstract: 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: GrantFiled: September 26, 2019Date of Patent: January 18, 2022Assignee: Route 92 Medical, Inc.Inventors: Michi E. Garrison, Tony M. Chou, Scott D. Wilson
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Patent number: 11224450Abstract: Described are methods, systems, devices for facilitation of intraluminal medical procedures within the neurovasculature. A catheter advancement device includes a flexible elongate body having a proximal end, a distal end, and a single lumen extending therebetween. The flexible elongate body has a proximal segment, an intermediate segment, and a tip segment. The proximal segment includes a hypotube coated with a polymer. The intermediate segment includes an unreinforced polymer having a durometer of no more than 72D. The tip segment is formed of a polymer different from the intermediate segment and has a durometer of no more than about 35D and a length of at least 5 cm. The tip segment has a tapered portion that tapers distally from a first outer diameter to a second outer diameter over a length of between 1 and 3 cm.Type: GrantFiled: May 14, 2021Date of Patent: January 18, 2022Assignee: Route 92 Medical, Inc.Inventors: Tony M. Chou, Scott D. Wilson