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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 450. Отображено 102.
07-11-2013 дата публикации

Verfahren zum Spannen von Feststellbremsseilen

Номер: DE102013207812A1
Автор: CANNON ROBBIE D, SIERADSKI KAREN F, GARRISON CHERYL A, CANNON, ROBBIE D., SIERADSKI, KAREN F., GARRISON, CHERYL A.
Принадлежит:

Ein Verfahren zum Spannen von Feststellseilen einer Feststellbremsanlage umfasst das Positionieren einer Spannungsanzeigevorrichtung zwischen einem Einsteller und einer Einstellmutter, wenn die Feststellbremsanlage in einer schlaffen Stellung angeordnet ist. Die Spannungsanzeigevorrichtung umfasst eine axiale Abstandslänge zwischen dem Einsteller und der Einstellmutter, die gleich einer erwünschten Einstellstrecke der Feststellseile ist, wenn die Feststellbremsanlage in der schlaffen Stellung angeordnet ist. Die Einstellmutter wird dann angezogen, bis die Spannungsanzeigevorrichtung anzeigt, dass die Feststellseile eine Spannung gleich einem Sollspannungswert der Feststellseile umfassen, wenn die Feststellbremsanlage in einer betätigten Stellung angeordnet ist. Die Spannungsanzeigevorrichtung wird dann zwischen dem Einsteller und der Einstellmutter herausgenommen, wodurch in die Feststellseile Spiel eingebracht wird, das gleich der axialen Länge der Spannungsanzeigevorrichtung ist.

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Номер записи: 1
07-07-2016 дата публикации

Waferhandling-Endeffektoren

Номер: DE112015000181T5
Автор: INGRAM-GOBLE ROBBIE, SIMMONS MICHAEL E, WOLF PHILIP, GARRISON RYAN, STORM CHRISTOPHER, Ingram-Goble, Robbie, Simmons, Michael, E., Wolf, Philip, Garrison, Ryan, Storm, Christopher
Принадлежит: CASCADE MICROTECH INC, Cascade Microtech, Inc.

Waferhandling-Endeffektoren und Halbleiterherstellungseinrichtungen, die Waferhandling-Endeffektoren enthalten und/oder damit genutzt werden, werden hier offenbart. Die Endeffektoren enthalten einen Endeffektorkörper und mehrere Waferkontaktierungsoberflächen, die getragen werden durch den Endeffektorkörper und konfiguriert sind zum Ausbilden eines zumindest teilweisen Fläche-zu-Fläche-Kontakts mit dem Wafer. Die Endeffektoren enthalten weiterhin einen Vakuumverteiler, der sich zwischen einem roboterproximalen Ende des Endeffektorkörpers und den mehreren Waferkontaktierungsoberflächen erstreckt. Die Endeffektoren enthalten auch mehrere Vakuumöffnungen, die innerhalb der mehreren Waferkontaktierungsoberflächen definiert sind und sich zwischen den mehreren Waferkontaktierungsoberflächen und dem Vakuumverteiler erstrecken. Die Endeffektoren enthalten weiterhin mehrere Abdichtungsstrukturen, von denen jede mit einer jeweiligen der mehreren Waferkontaktierungsoberflächen assoziiert ist.

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Номер записи: 2
25-10-2012 дата публикации

Foamed Spacer Fluids Containing Cement Kiln Dust and Methods of Use

Номер: US20120267107A1
Автор: Christopher Jay Garrison, Craig W. Roddy, D. Chad Brenneis, James Robert Benkley, Joseph V. Spencer, Zachary Robert Kranz
Принадлежит: Halliburton Energy Services Inc

Disclosed are spacer fluids comprising cement kiln dust (“CKD”) and methods of use in subterranean formations. An embodiment discloses a method comprising: providing a foamed spacer fluid comprising CKD, a foaming agent, a gas, and water; and introducing the foamed spacer fluid into a well bore to displace at least a portion of a first fluid present in the well bore. Another embodiment discloses a method comprising: providing a foamed spacer fluid comprising a partially calcined kiln feed removed from a gas stream, a foaming agent, a gas, and water, wherein the partially calcined kiln feed comprises SiO 2 , Al 2 O 3 , Fe 2 O 3 , CaO, MgO, SO 3 , Na 2 O, and K 2 O; and introducing the foamed spacer fluid into a well bore to displace at least a portion of a first fluid present in the well bore.

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Номер записи: 3
07-02-2013 дата публикации

Methods and systems for treatment of acute ischemic stroke

Номер: US20130035628A1
Автор: Alan K. Schaer, Gregory M. Hyde, Michi E. Garrison, Tony M. Chou
Принадлежит: Silk Road Medical Inc

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.

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Номер записи: 4
01-08-2013 дата публикации

SYSTEMS AND METHODS FOR TREATING A CAROTID ARTERY

Номер: US20130197621A1
Автор: Garrison Michi E., Hyde Gregory M., Renati Richard J, Ryan Ari, Schaer Alan K.
Принадлежит: Silk Road Medical, Inc.

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. 1. A system for use in accessing and treating a carotid artery , said system comprising:an arterial access device adapted to be introduced into a common carotid artery, wherein the arterial access device comprises a distal sheath adapted to enter the common carotid artery, an aspiration port communicating with an internal lumen of the distal sheath, and a proximal hemostasis valve assembly providing access to the internal lumen of the distal sheath for an interventional device; (a) a housing defining an internal chamber that communicates with the internal lumen of the distal sheath, wherein the internal chamber is adapted to contain a fluid;', '(b) a first seal member that seals the internal chamber from the internal lumen of the distal sheath, the first seal member having a central passageway that opens for passage of an interventional device into the internal lumen of the distal sheath from the internal chamber, wherein the central passageway is closed in a default state to prevent passage of fluid across the proximal seal member;', '(c) wherein, when the internal chamber is filled with fluid, the fluid prevents air from entering the internal lumen of the distal sheath via the hemostasis valve assembly when the internal lumen of the distal sheath is aspirated, via the aspiration port., 'the hemostasis valve assembly comprising2. A system as in claim 1 , wherein the hemostasis valve assembly further comprises a second seal member claim 1 , wherein the second seal member is positioned on a proximal end of the internal chamber and the first seal member is positioned on a ...

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Номер записи: 5
24-10-2013 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

Номер: US20130281788A1
Автор: Garrison Michi E.
Принадлежит:

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. 1. A device for accessing an artery , comprising:{'b': 30', '50, 'an arterial access device having 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 having 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, and wherein the proximal portion has a length configured to provide a distance of between about cm and cm between the arterial access site and the proximal port.'}2. A device as in claim 1 , wherein the arterial access device comprises an introducer sheath.3. A device as in claim 1 , wherein the arterial access device is a multi-part claim 1 , telescoping system.4. A device as in claim 1 , further comprising a distal catheter configured to be inserted into the arterial access device.5. A device for treating an occlusion in a cerebral artery of a patient claim 1 , comprising:a distal catheter sized and shaped such that the distal catheter can be passed through a access site in a carotid artery to an occlusion in a cerebral artery via an arterial ...

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Номер записи: 6
07-11-2013 дата публикации

Efficient device handover/migration in mesh networks

Номер: US20130294230A1
Автор: Bastien Mainaud, Daniel Popa, Mehdi Mani, Michael Thomas Garrison Stuber, Viet-Hung Nguyen
Принадлежит: Itron Inc

A new device is deployed to an area in which a network is provided. The new device may join the network using a single handshake via a neighboring device that is a member of the network and register with a network management system managing the network. If the network is overloaded or has limited bandwidth remaining, the network may refuse to admit the new device, or if the new device is isolated, may force some devices that are members of the network to leave or migrate from the network to allow the isolated device to join the network.

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Номер записи: 7
30-01-2014 дата публикации

SYSTEM AND METHODS FOR CONTROLLING RETROGRADE CAROTID ARTERIAL BLOOD FLOW

Номер: US20140031682A1
Автор: Garrison Michi E., Hyde Gregory M., Renati Richard J., Schaer Alan K.
Принадлежит: Silk Road Medical, Inc.

A retrograde flow system is configured for treating an artery. The system includes an arterial access device adapted to be introduced into an artery and receive blood flow from the artery. A shunt fluidly is connected to the arterial access device, wherein the shunt provides a pathway for blood to flow from the arterial access device to a return site. A flow control assembly is coupled to the shunt and is adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. A shut-off valve assembly automatically blocks fluid flow through the shunt in response to injection of the fluid into the arterial access device. 1. A retrograde flow system for treating an artery , comprising:an arterial access device adapted to be introduced into an artery and receive blood flow from the artery;a shunt fluidly connected to the arterial access device, wherein the shunt provides a pathway for blood to flow from the arterial access device to a return site;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; anda shut-off valve assembly that regulates fluid flow through the shunt, wherein the shut-off valve assembly automatically blocks fluid flow through the shunt in response to injection of the fluid into the arterial access device.2. A system as in claim 1 , further comprising a fluid line that communicates with the shut-off valve assembly and the arterial access device claim 1 , wherein the fluid line provides a pathway for injecting fluid into the arterial access device claim 1 , and wherein the fluid line communicates an injection pressure to the shut-off valve assembly.3. A system as in claim 2 , wherein the flow control assembly comprises a single housing through which at least a portion of the shunt and a portion of the fluid line pass through.4. A system as in claim 1 , wherein the shut ...

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Номер записи: 8
30-01-2014 дата публикации

SYSTEMS AND METHODS FOR TRANSCERVICAL AORTIC VALVE TREATMENT

Номер: US20140031925A1
Автор: Chou Tony M., Garrison Michi E., Hyde Gregory M.
Принадлежит: Silk Road Medical, Inc.

Devices and methods are configured to allow transcervical 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. 1. A system for aortic valve treatment , comprising:an arterial access sheath adapted to be introduced into an access site at the left common carotid artery, right common carotid artery, left subclavian artery, or right subclavian artery, wherein the arterial access sheath includes an internal lumen sized and shaped to receive a valve delivery system configured to deliver a prosthetic valve into the heart through the arterial access sheath;an occlusion element on the arterial access sheath, the occlusion element adapted to occlude an artery.2. A system as in claim 1 , further comprising a valve delivery system configured to deliver a prosthetic valve into the heart through the arterial access sheath.3. A system as in claim 1 , wherein the occlusion element is a balloon.4. A system as in claim 1 , wherein the sheath has an aspiration port.5. A system as in claim 1 , further comprising a collection reservoir fluidly coupled to the access sheath and adapted to receive fluid from the sheath.6. A system as in claim 1 , further comprising a venous return shunt fluidly coupled to the access sheath and adapted to receive fluid from the sheath for passing to a vein.7. A system as in claim 4 , further comprising an aspiration source coupled to the aspiration port.8. A system as in claim 1 , further comprising a filter coupled to the arterial access sheath to provide embolic protection.9. A system as in claim 8 , wherein the filter is sized and shaped to be deployed across the ostium of the artery.10. A system as in claim 8 , wherein the filter is sized and shaped to be deployed across at least one of the innominate artery claim 8 , left common carotid ...

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Номер записи: 9
13-02-2014 дата публикации

Suture Delivery Device

Номер: US20140046346A1
Автор: Garrison Michi E., Hentges Ronald
Принадлежит: Silk Road Medical, Inc.

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. 1. A device for closing an aperture in a wall of a blood vessel , the device comprising:a body;at least one suture element held within the body;at least one suture capture rod within the body, the suture capture rod being operatively associated with the suture element and arranged to pass the suture element through the vessel wall such that opposed portions of the suture element extend from the vessel wall; anda removable guidewire segment removably attached to a distal end of the body.2. The device of claim 1 , further comprising a proximal guidewire extension.3. The device of claim 2 , wherein the removable guidewire segment is configured to be attached in series to the guidewire extension.4. The device of claim 3 , wherein the guidewire extension and the guidewire segment collectively form an elongated guidewire when attached to one another.5. The device of claim 3 , further comprising a coupler element that removably attaches the guidewire segment to the guidewire extension.6. The device of claim 5 , wherein the coupler is a screw claim 5 , snap claim 5 , or a spring coupler.7. The device of claim 6 , wherein the coupler outer diameter does not interfere with its function as an introducer sheath guidewire.8. The device of claim 6 , wherein the coupler does not form a step at a juncture between the coupler and the guidewire extension or the guidewire segment.9. The device of claim 6 , wherein the coupler can be used to attach the guidewire extension to the guidewire ...

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Номер записи: 10
27-02-2014 дата публикации

SUTURE DELIVERY DEVICE

Номер: US20140058414A1
Автор: Chou Tony M., Garrison Michi E., Hyde Gregory M., Renati Richard J., Schaer Alan K.
Принадлежит: Silk Road Medical, Inc.

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. 1. A method of performing a procedure on a vascular or cardiac structure , comprising:inserting a suture delivery device with a premounted sheath into the common carotid artery through an arteriotomy in the wall of the common carotid artery;drawing at least one end of a suture outside the body of the patient using the suture delivery device such that the suture can be held until such time as the suture is to be tied off to create a permanent closure of the arteriotomy;separating the suture from the body of the suture delivery device;advancing the premounted sheath through the arteriotomy into the common carotid artery;removing the suture delivery device;inserting a therapeutic device or devices through the sheath to the treatment site, performing a therapeutic procedure, and removing the therapeutic device or devices from the sheath;removing the sheath; andtying off the ends of the suture to close the arterial access site.2. A method as in claim 1 , further comprising the step of occluding the common carotid artery.3. A method as in claim 2 , wherein the procedural sheath includes a Y-arm connection to a flow line and further comprising the step of connecting the sheath to a reverse flow shunt.4. A method as in claim 1 , wherein the therapeutic device is a prosthetic aortic valve and the therapeutic procedure is transcatheter aortic valve implantation.5. A method as in claim 1 , wherein the suture delivery device includes a vessel wall locator claim 1 , and further comprising actuating the vessel wall locator from a first position ...

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Номер записи: 11
11-01-2018 дата публикации

SYSTEMS AND METHODS FOR ASPIRATING FROM A BODY LUMEN

Номер: US20180008294A1
Автор: Duong Sieu, Garrison Michi E.
Принадлежит:

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. 121-. (canceled)22. A device for aspirating fluid from a body lumen , comprising:an internal syringe barrel member defining a chamber configured to contain fluid, the chamber having an opening through which fluid can pass;a plunger movably positioned at least partially within the chamber, the plunger including a plunger seal;an external syringe barrel connected to the plunger, wherein the internal syringe barrel is slidably positioned inside the external syringe barrel, wherein the plunger and the external syringe barrel collectively form a body that can slide relative to the internal syringe barrel;first and second finger elements extending outward from a proximal end of the internal syringe barrel;third and fourth finger elements extending outward from a distal end of the external syringe barrel;wherein movement of the first and second finger elements toward the third and fourth finger elements causes relative movement between the plunger seal and the chamber so as to aspirate fluid into the chamber;a locking mechanism movable between a first state and a second state, wherein the locking mechanism locks a position of the plunger seal relative to chamber when the locking mechanism is in the first state, and the locking mechanism permits relative movement of the plunger seal relative to chamber when the locking mechanism is in the second state.23. A device as in claim 22 , wherein at least some of the finger elements are tabs.24. A device as in claim 22 , wherein the locking mechanism is positioned such that a user can use a thumb to change ...

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Номер записи: 12
10-01-2019 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

Номер: US20190008534A1
Автор: Chou Tony M., Garrison Michi E.
Принадлежит:

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. 135.-. (canceled)36. A system of devices for performing a medical procedure at a treatment site in a cerebral vessel of a patient , the system comprising:a catheter having a catheter lumen having an inner diameter and a distal end; andan inner member sized to slide within the catheter lumen, wherein the inner member defines a single lumen and has a distal portion and a distal-most end having a distal opening, the distal portion having a first outer diameter that tapers distally to a second outer diameter that is smaller than the first outer diameter,wherein the system is in an advancement configuration when the inner member is positioned coaxially in the catheter lumen with the distal portion positioned distal to the distal end of the catheter,wherein a flexibility of the distal portion decreases smoothly from a flexibility at the second outer diameter to a flexibility at the first outer diameter when the system is in the advancement configuration, andwherein the system of devices is sufficiently flexible that, when the system is in the advancement configuration, the system is configured to be advanced distal to a petrous portion of an internal carotid artery.37. The system of claim 36 , wherein a stent retriever is positioned within the single ...

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Номер записи: 13
09-01-2020 дата публикации

DEVICES AND METHODS FOR ENDOLUMINAL DELIVERY OF EITHER FLUID OR ENERGY FOR DENERVATION

Номер: US20200009406A1
Автор: Garrison Michi E., Ruedy Richard M.
Принадлежит:

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. 121-. (canceled)22. A catheter device , comprising:an elongate body having a distal region and a proximal region;a first inflatable holdfast positioned along the elongate body adjacent the distal region of the elongate body;a second inflatable holdfast positioned along the elongate body adjacent the first inflatable holdfast, the first inflatable holdfast and the second inflatable holdfast being configured to inflate and anchor the catheter device within an artery; andan energy providing feature secured to the elongate body at a first location between e first and second inflatable holdfasts, the energy providing feature configured to deliver energy from the first location,wherein the second inflatable holdfast is positioned a distance from the first inflatable holdfast, the distance allowing the energy providing feature to be securely positioned adjacent a vascular body when the first inflatable holdfast and the second inflatable holdfast are inflated within an artery thereby allowing the energy providing feature to deliver energy from the first location to a vascular body.23. The catheter device of claim 22 , wherein the energy delivered to the target area is radiofrequency energy.24. The catheter device of claim 22 , wherein the energy delivered to the target area is ultrasound energy.25. The catheter device of claim 22 , wherein the energy providing feature includes an electrode.26. The catheter device of claim 22 , wherein the ...

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Номер записи: 14
16-01-2020 дата публикации

METHODS AND SYSTEMS FOR ESTABLISHING RETROGRADE CAROTID ARTERIAL BLOOD FLOW

Номер: US20200016321A1
Автор: Chou Tony M., Criado Enrique, Garrison Michi E., Hyde Gregory M., Renati Richard, SCHAER Alan
Принадлежит:

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. 1. A system for use in accessing and treating a target artery , said system comprising:an arterial access device adapted to be introduced into a common carotid artery and receive blood flow from the target artery;a shunt fluidly connected to the arterial access device, wherein the shunt provides a pathway for blood to flow from the arterial access device to a return site; anda 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, wherein the flow control assembly includes one or more components that interact with the blood flow through the shunt, wherein the flow control assembly comprises two or more parallel flow paths and a valve to open or close one or more of the flow paths to adjust the state of flow by selectively directing blood flow through one or more of the flow paths.2. A system as in claim 1 , further comprising a port fluidly communicating with the shunt claim 1 , wherein the port may be used to connect an aspiration device to the shunt.3. A system as in claim 2 , further comprising a second valve which controls fluid communication between the shunt and the port.4. A system as in claim 3 , wherein the second valve automatically opens with attachment of an aspiration or injection device ...

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Номер записи: 15
16-01-2020 дата публикации

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

Номер: US20200016369A1
Автор: Chou Tony M., Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 1. A method of performing a medical procedure at a treatment site in a cerebral vessel of a patient , the method comprising: a catheter having a catheter lumen and a distal end; and', 'an inner member, having a lumen, extending through the catheter lumen, wherein a tapered distal end of the inner member extends distal to the distal end of the catheter forming an assembled coaxial system of devices; and, 'assembling a coaxial system of devices, the coaxial system of devices comprisingadvancing the assembled coaxial system of devices together within the petrous portion of the internal carotid artery while a guidewire is not present in the lumen.2. The method of claim 1 , further comprising removing the inner member after the catheter is placed at or near the treatment site.3. The method of claim 2 , further comprising advancing a treatment device into the catheter lumen so that the treatment device resides at or near the treatment site.4. The method of claim 2 , further comprising removing occlusive material while applying a negative pressure to the catheter lumen to capture occlusive material at claim 2 , within claim 2 , or through the distal end of the catheter.5. The method of claim 4 , wherein the step of removing occlusive material ...

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Номер записи: 16
15-01-2015 дата публикации

STENT GRAFT ASSEMBLY AND METHOD

Номер: US20150018931A1
Автор: Garrison Michi E., RUDAKOV Leon V.
Принадлежит: COVIDIEN LP

A graft device can include a graft component and an expandable component that has a longitudinal axis and a coupling portion. The coupling portion has a surface extending radially relative to the longitudinal axis. The graft component also has a portion that is coupled to the surface of the expandable component for securing the graft component relative to the expandable component. For example, the graft component portion can be frictionally engaged between the surface and a member positioned against the expandable component. 1. A graft device comprising:an expandable component comprising a longitudinal axis and a coupling portion having a surface extending radially relative to the longitudinal axis; anda graft component having a section frictionally engaged against the surface for securing the graft component relative to the expandable component.2. The device of claim 1 , further comprising a member frictionally engaging the graft component against the surface such that the graft component is interposed between the surface and the member.3. The device of claim 2 , wherein the expandable component comprises an opening that (i) extends radially through the expandable component and (ii) defines a volume claim 2 , the opening being at least partially defined by the surface claim 2 , and wherein the member is received within the volume such that the section is disposed within the volume and engaged between the surface and the member.4. The device of claim 2 , wherein the member is frictionally received within the opening without piercing the graft component.5. The device of claim 1 , wherein the surface extends substantially normal relative to the longitudinal axis.6. The device of claim 1 , wherein the graft component extends circumferentially around the expandable component.7. The device of claim 1 , wherein the graft component comprises a tubular membrane extending over the stent.8. The device of claim 1 , wherein the graft component comprises a polymeric sleeve.9. ...

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Номер записи: 17
10-02-2022 дата публикации

DEVICES AND METHODS FOR ENDOLUMINAL DELIVERY OF EITHER FLUID OR ENERGY FOR DENERVATION

Номер: US20220040502A1
Автор: Garrison Michi E., Ruedy Richard M.
Принадлежит:

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. 121-. (canceled)22. A catheter device , comprising:an elongate body having a distal end and a proximal end;a passageway extending along a part of the elongate body, the passageway including an opening positioned adjacent the distal end and along an outer wall of the elongate body; andan injector slidably engaged with the passageway and configured to extend through the opening and penetrate tissue of a carotid artery; anda holdfast including a plurality of flexible extensions positioned at the distal end of the elongate body, the plurality of flexible extensions radially expand and contact inner walls of a carotid artery when the plurality of flexible extensions are extending from the distal end of the elongate body.23. The catheter device of claim 22 , wherein each flexible extension of the plurality of flexible extensions includes a coating claim 22 , the coating including a rubber material or a silicone material.24. The catheter device of claim 23 , wherein each flexible extension of the plurality of flexible extensions includes a proximal extension end and a distal extension end claim 23 , the proximal extension end being coupled to a part of the catheter device and the distal extension end extending away from the distal end of the elongate body.25. The catheter device of claim 22 , wherein the injector includes a fluid pathway for delivering a fluid to a target area.26. The catheter device of claim 25 , wherein the fluid includes ...

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Номер записи: 18
06-02-2020 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

Номер: US20200038576A1
Автор: Chou Tony M., Garrison Michi E., Hyde Gregory M.
Принадлежит:

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. 197-. (canceled)98. A method for treating stroke , comprising:forming a penetration in a wall of a common carotid artery or internal carotid artery;applying a closure device with sutures upon commencement of the procedure at a site of the penetration and before placement of any structure through the penetration;positioning an arterial access sheath having an occlusion element through the penetration such that the occlusion element is positioned within the internal carotid artery;occluding the internal carotid artery;establishing retrograde blood flow through the internal carotid artery distal of the occluding element;inserting a distal catheter having an aspiration lumen into the intracranial artery through the access sheath, the distal catheter further having a distal-most end that defines an opening into the aspiration lumen;treating a thrombotic blockage in the intracranial artery by positioning the distal-most end of the distal catheter so that the distal-most end is located immediately adjacent the thrombotic blockage in the intracranial artery;aspirating material from the thrombotic blockage in the intracranial artery into the opening at the distal-most end of the distal catheter such that the aspiration causes the material from the thrombotic blockage to flow into the opening at the distal-most end of the distal catheter;removing the arterial access sheath from the penetration; andclosing the access site with the sutures of the closure device.99. A method as in claim 98 , wherein establishing retrograde blood flow through the internal carotid artery comprises ...

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Номер записи: 19
18-02-2021 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

Номер: US20210045758A1
Автор: Chou Tony M., Garrison Michi E.
Принадлежит:

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. 1. A system of devices for performing a medical procedure at a treatment site in a cerebral vessel of a patient , the system comprising:a catheter having a catheter lumen having an inner diameter and a distal end; and a single lumen having a distal opening;', 'a distal tapered portion comprising a first outer diameter that tapers distally to a second outer diameter that is smaller than the first outer diameter; and', 'a flexible tubular extension coupled to and extending distally past the distal tapered portion, wherein a length of the tubular extension has a uniform outer diameter and wherein the distal opening from the single lumen is at a distal-most end of the tubular extension., 'an inner member sized to slide within the catheter lumen, the inner member comprising2. The system of claim 1 , wherein the system is in an advancement configuration when the inner member is positioned coaxially in the catheter lumen with the distal tapered portion positioned distal to the distal end of the catheter and the inner member held fixed relative to the catheter claim 1 , and wherein a flexibility of the distal tapered portion decreases smoothly from a flexibility at the second outer diameter to a flexibility at the first outer diameter when the system is ...

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Номер записи: 20
16-02-2017 дата публикации

Methods and Devices for Transcarotid Access

Номер: US20170043141A1
Автор: Garrison Michi E., Kume Stewart M., Mendoza Herbert, Moreno Marlon, Wallace Michael P.
Принадлежит:

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. 122-. (canceled)23. A method for introducing an interventional device into a common carotid artery , the method comprising:forming an an access location in a neck of a patient, the access location providing access to a common carotid artery of the patient; an elongated body sized and shaped to be transcervically introduced into the common carotid artery via the access location in the neck;', '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 providing a passageway;', 'wherein the elongated body has a proximal section and a distal most section that is more flexible than the proximal section, and wherein a ratio of an entire length of the distal most section to an overall length of the sheath body is one tenth to one half the overall length of the sheath body, and wherein the overall length of the elongated body is 20 cm to 30 cm;, 'transcervically introducing an arterial access sheath into the common carotid artery via the access location, wherein the ...

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Номер записи: 21
14-02-2019 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

Номер: US20190046218A1
Автор: Chou Tony M., Garrison Michi E.
Принадлежит:

Described are methods for performing a medical procedure at a treatment site in a cerebral vessel of a patient. The methods include positioning a system of devices into an advancement configuration, the system including a catheter and an inner member sized and shaped to slide within the catheter lumen. The inner member defines a single lumen and has a distal portion, the distal portion having a first outer diameter that tapers distally to a second outer diameter that is smaller than the first outer diameter. When positioned in the advancement configuration, the inner member extends coaxially through the catheter lumen and the distal portion of the inner member is positioned distal to the distal end of the catheter. The method further includes advancing the system of devices distal to a petrous portion of an internal carotid artery while the system of devices is positioned in the advancement configuration. 135.-. (canceled)36. A method of performing a medical procedure at a treatment site in a cerebral vessel of a patient , the method comprising: a catheter having a catheter lumen, an inner diameter and a distal end; and', 'an inner member sized and shaped to slide within the catheter lumen, wherein the inner member defines a single lumen and has a distal portion, the distal portion having a first outer diameter that tapers distally to a second outer diameter that is smaller than the first outer diameter,, 'positioning a system of devices into an advancement configuration, the system of devices comprisingwherein, when positioned in the advancement configuration, the inner member extends coaxially through the catheter lumen and the distal portion of the inner member is positioned distal to the distal end of the catheter; andadvancing the system of devices distal to a petrous portion of an internal carotid artery while the system of devices is positioned in the advancement configuration.37. The method of claim 36 , further comprising removing the inner member from the ...

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Номер записи: 22
25-02-2021 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

Номер: US20210052296A1
Автор: Garrison Michi E.
Принадлежит:

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. 120.-. (canceled)21. A system of devices for performing a medical procedure at a treatment site in a cerebral vessel of a patient , the system comprising:a catheter having a catheter lumen having an inner diameter and a distal end; andan inner member sized and shaped to slide within the catheter lumen, wherein the inner member defines a single lumen and has a distal portion and a distal-most end,wherein the distal portion has a first outer diameter that decreases distally to a second outer diameter that is smaller than the first outer diameter, andwherein the first outer diameter is sized so that, when the inner member is positioned coaxially in an advancement configuration relative to the catheter, the inner member extends through the catheter lumen and the distal portion is positioned distal to the distal end of the catheter to form a smooth transition from the second outer diameter to the inner diameter of the catheter lumen at the distal end of the catheter, anda guidewire positioned within the single lumen of the inner member and extending out a distal opening of the distal portion of the inner member, wherein when the coaxial system of devices is positioned with the inner member in the advancement configuration and the guidewire extending out of the distal opening of the distal portion of the inner member, the distal portion of the inner member creates a smooth transition in flexibility ...

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Номер записи: 23
13-02-2020 дата публикации

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

Номер: US20200046939A1
Автор: Chou Tony M., Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 1. An intravascular access catheter for advancing a medical device for intraluminal medical procedures within the neurovasculature , comprising:a flexible elongate body having a proximal end, a distal end, and a lumen extending therebetween, the flexible elongate body comprising of a plurality of regions, wherein at least two of the plurality of regions of the flexible elongate body are comprised of unreinforced polymer;a first marker disposed at the distal end of the flexible elongate body; anda proximal extension extending proximally from the proximal end of the flexible elongate body, the proximal extension having a lumen communicating with the lumen of the flexible elongate body, wherein the proximal extension is formed of two or more different materials.2. The catheter of claim 1 , wherein the unreinforced polymer is Pebax.3. The catheter of claim 1 , wherein the plurality of regions of the flexible elongate body comprises three regions.4. The catheter of claim 3 , wherein the three regions comprise claim 3 , a proximal region claim 3 , an intermediate region claim 3 , and a tip region.5. The catheter of claim 4 , wherein a portion of the tip region of the flexible elongate body is shapeable by a user.6. The catheter of claim 4 , ...

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Номер записи: 24
13-02-2020 дата публикации

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

Номер: US20200046940A1
Автор: Chou Tony M., Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 1. An intravascular access catheter for advancing a medical device for intraluminal medical procedures within the neurovasculature , comprising:a flexible elongate body having a proximal end, a distal end, and a lumen extending therebetween, wherein the flexible elongate body comprises a plurality of regions, wherein one of the plurality of regions is a tapered region;a first marker disposed at a distal end of the tapered region;a second marker disposed at a proximal end of the tapered region, wherein the tapered region comprises an unreinforced polymer; anda proximal extension extending proximally from the proximal end of the flexible elongate body, the proximal extension having a lumen communicating with the lumen of the flexible elongate body.2. The access catheter of claim 1 , wherein the proximal extension is formed of two or more different materials.3. The access catheter of claim 2 , wherein one of the two or more different materials of the proximal extension is metal.4. The access catheter of claim 3 , wherein a second material of the two or more different materials of the proximal extension is polymer.5. The access catheter of claim 2 , wherein the two or more materials are arranged coaxially.6. The access catheter of claim 5 , ...

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Номер записи: 25
13-02-2020 дата публикации

DISPLAY SYSTEM FOR A VIEWING OPTIC

Номер: US20200049455A1
Автор: Bollig Garrison, Carlson Andy, Cody Tom, Hamilton Samuel J., Havens Calen, Klemm Ian, Laufenberg Nicholas B., Lewis Alexander, Lowry William, Schultz Craig
Принадлежит:

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a display system for a viewing optic. In one embodiment, the disclosure relates to a viewing optic having a display system with multiple active displays for generating images that are projected into a first focal plane of an optical system. 1. A display system for a viewing optic comprising: a first active display configured to generate a first image , and a second active display configured to generate a second image , wherein the first active display and second active display are perpendicular to one another , and further wherein the first image or the second image is directed to a first beam combiner for simultaneous overlaid viewing with an image of an outward scene in a first focal plane of the viewing optic.2. The display system of further comprising a second beam combiner located between the first active display and the second active display.3. The display system of claim 2 , wherein the first active display is located to the right or to the left of the second beam combiner.4. The display system of claim 2 , wherein the second active display is located above or below the second beam combiner.5. The display system of claim 2 , further comprising a lens system configured to collect light from the second beam combiner.6. The display system of claim 1 , further comprising a reflective material configured to project the first image or the second image to the first beam combiner.7. The display system of claim 1 , wherein the first image or second image generated by the first active display or the second active display is selected from the group consisting of: text claim 1 , alpha-numeric claim 1 , graphics claim 1 , symbols claim 1 , video imagery claim 1 , icons claim 1 , active target reticles claim 1 , range measurements claim 1 , wind information claim 1 , GPS and compass information claim 1 , firearm inclination information claim 1 , target finding claim 1 , recognition and ...

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Номер записи: 26
15-05-2014 дата публикации

DEVICES AND METHODS FOR ENDOLUMINAL DELIVERY OF EITHER FLUID OR ENERGY FOR DENERVATION

Номер: US20140135661A1
Автор: Garrison Michi E., Ruedy Richard M.
Принадлежит: Silk Road Medical, Inc.

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. 1. A catheter device , comprising:an elongate body having a distal end and a proximal end;a holdfast positioned adjacent the distal end of the elongate body and configured to anchor the catheter device within a vessel of a body; andan energy providing feature positioned adjacent the distal end of the elongate body and configured to deliver energy to a target area.2. The catheter device of claim 1 , wherein the holdfast comprises a vacuum port connected to a vacuum source that assists in suctioning a part of the catheter device to a wall of the vessel.3. The catheter device of claim 1 , wherein the holdfast comprises an inflatable balloon.4. The catheter device of claim 1 , wherein the target area includes at least one of a carotid body and renal nerve.5. The catheter device of claim 1 , wherein the energy delivered to the target area is radiofrequency energy.6. The catheter device of claim 1 , wherein the energy delivered to the target area is ultrasound energy.7. The catheter device of claim 1 , wherein the energy providing feature includes an electrode.8. The catheter device of claim 1 , wherein the energy providing feature includes a transducer and an acoustic element.9. The catheter device of claim 1 , further including an extendable injector configured to extend from the elongate body and into the target area for delivering a fluid.10. The catheter device of claim 9 , wherein the delivered fluid causes denervation of at least ...

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Номер записи: 27
20-02-2020 дата публикации

SYSTEMS AND METHODS FOR TREATING A CAROTID ARTERY

Номер: US20200054871A1
Автор: Garrison Michi E., Hyde Gregory M., Renati Richard J., Ryan Ari, Schaer Alan K.
Принадлежит:

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. 116-. (canceled)17. A method of accessing and treating a carotid artery , the method comprising: the hemostasis valve assembly comprising:', '(a) a housing defining an internal chamber that communicates with the internal lumen of the distal sheath, wherein the internal chamber is adapted to contain a liquid;', '(b) a first seal member that seals the internal chamber from the internal lumen of the distal sheath, the first seal member having a central passageway that opens for passage of an interventional device into the internal lumen of the distal sheath from the internal chamber, wherein the central passageway is closed in a default state to prevent passage of fluid across the first seal member;', '(c) wherein, when the internal chamber is filled with liquid or gel, the liquid or gel prevents air from entering the internal lumen of the distal sheath via the hemostasis valve assembly when the internal lumen of the distal sheath is aspirated, via the aspiration port;', 'a second seal member, wherein the second seal member is positioned on a proximal end of the internal chamber and the first seal member is positioned on a distal end of the internal chamber so that the first seal member and second seal member define the internal chamber therebetween and can enclose liquid or gel within the internal chamber, and wherein the first seal member and second seal member are aligned along a common, straight axis;, 'inserting an arterial access device into an artery, wherein the arterial access device comprises a distal sheath, an aspiration port communicating with an internal lumen ...

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Номер записи: 28
08-03-2018 дата публикации

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

Номер: US20180064453A1
Автор: Chou Tony M., Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 1. A method of performing a medical procedure in a cerebral vessel of a patient , the method comprising: [ a flexible distal luminal portion having a proximal end, a distal end, and a lumen extending between the proximal end and the distal end; and', 'a proximal elongate body that is less flexible than the flexible distal luminal portion and is configured to control movement of the catheter; and, 'a catheter comprising, a flexible elongate body having a proximal end region, a distal tip, a single lumen that communicates with a distal opening in fluid communication with the blood vessel, and an outer diameter, wherein the outer diameter of the flexible elongate body is between about 0.003″-about 0.010″ smaller than an inner diameter of the lumen of the flexible distal luminal portion of the catheter, and wherein the single lumen of the flexible elongate body extends longitudinally through the flexible elongate body to the distal opening; and', 'a proximal portion extending from the proximal end region of the flexible elongate body and extending proximally outside of the body of the patient, the proximal portion having a single lumen that communicates with the single lumen of the flexible elongate body;, 'a catheter advancement element ...

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Номер записи: 29
17-03-2022 дата публикации

Viewing Optic with an Integrated Display System

Номер: US20220082810A1
Автор: Bollig Garrison, Carlson Andrew, Hamilton David M., Hamilton Samuel, Havens Calen, Klemm Ian, Lowry Will, Lyle Jason, Schultz Craig
Принадлежит:

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system. 1. A system comprising:a viewing optic having an optical system with a moveable optical element for generating an image of an outward scene, and an active display located below the optical system and configured to generate a digital image that is viewed in a first focal plane of the optical system; anda laser rangefinder coupled to a top portion of the main body of the viewing optic.2. The viewing optic of claim 1 , further comprising a beam combiner located between an objective assembly of the main body and the first focal plane.3. The viewing optic of claim 2 , wherein the beam combiner is located approximately beneath an elevation knob of the viewing optic.4. The viewing optic of claim 2 , wherein the beam combiner is located closer to an objective assembly as compared to an ocular assembly of the viewing optic.5. The viewing optic of claim 2 , further comprising a reflective material configured to direct the digital image to the beam combiner.6. The viewing optic of claim 5 , wherein the reflective material is a mirror that is angled.7. The viewing optic of claim 6 , wherein the mirror is angled from about 40° to about 50° relative to emitted light of the display.8. The viewing optic of claim 6 , wherein the mirror is angled at about 45° relative to emitted light of the display.9. The viewing optic of claim 1 , further comprising a collector lens system to collect light from the active display.10. A system comprising:a viewing optic having an optical system having an objective lens system that focuses a target image from an outward scene to a first focal plane; an erector system that inverts the target image; a beam combiner placed between ...

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Номер записи: 30
11-03-2021 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

Номер: US20210069467A1
Автор: Chou Tony M., Garrison Michi E.
Принадлежит:

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. 1. A catheter system comprising:an access sheath comprising a tubular sheath body with a central lumen having an inner diameter, a proximal end and a distal opening,and a connector operably connected with the sheath body and attachable to a fluid source or aspiration source via the connector; anda catheter comprising a distal portion and a proximal tether extending proximally from a point of attachment between the proximal tether and the distal portion, wherein the distal portion has a single inner lumen, and wherein the catheter is configured to extend from a femoral access site to a carotid artery,wherein the catheter is configured to slide within the central lumen of the sheath body to change the relative position of the catheter within the central lumen and provide for at least a portion of the distal portion to extend outward from the distal opening of the sheath body such that an overlap region is formed between the catheter and the access sheath,wherein a fluid lumen is collectively formed by the single inner lumen of the catheter and the central lumen of the access sheath, andwherein a proximal end region of the catheter comprises an inclined surface flaring outward in a proximal direction, wherein the inclined surface is formed in a thickened portion of the catheter ...

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Номер записи: 31
19-03-2015 дата публикации

System and Method for Assisted Manual Compression of Blood Vessel

Номер: US20150080942A1
Автор: Chou Tony M., Garrison Michi E.
Принадлежит:

A device for applying pressure to a region of a person's neck includes a belt having a length sized to fit around the neck and a compression element coupled to the belt. The compression element is sized and shaped to exert a compressive force onto an area of the neck when the belt is tensioned. 1. A device for applying pressure to a region of a person's neck , comprising:a belt having a length sized to fit around the neck; anda compression element coupled to the belt, the compression element sized and shaped to exert a compressive force onto an area of the neck when the belt is tensioned.2. A device as in claim 1 , further comprising a support structure coupled to the belt on a location opposite the location of the compression element.3. A device as in claim 2 , wherein the support structure is an elongated body positioned along the belt.4. A device as in claim 1 , wherein the compression element is an ultrasound probe.5. A device as in claim 4 , wherein the system is configured to emit an alarm claim 4 , the alarm being based on a signal from the ultrasound probe.6. A device as in claim 1 , further comprising a holder structure that attaches an ultrasound probe to the belt.7. A device as in claim 6 , wherein the position of the ultrasound probe is adjustable within the holder structure.8. A device as in claim 7 , wherein the position of the ultrasound probe is adjustable within the holder structure after the belt is tensioned.9. A device as in claim 6 , wherein the ultrasound probe is the compression element.10. A device as in claim 6 , wherein the holder structure is the compression element.11. A device as in claim 4 , wherein the position of the probe is adjustable based on an ultrasound signal from the probe.12. A device as in claim 4 , wherein tension in the belt is controlled based on an ultrasound signal from the probe.13. A device as in claim 1 , further comprising an inflatable tip on the compression element.14. A device as in claim 13 , wherein the ...

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Номер записи: 32
11-04-2019 дата публикации

Methods And Systems For Establishing Retrograde Carotid Arterial Blood Flow

Номер: US20190105439A1
Автор: Chou Tony M., Criado Enrique, Garrison Michi E., Hyde Gregory M., Renati Richard, SCHAER Alan
Принадлежит:

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. 1. A method of treating a lesion in a carotid artery of a patient having an arterial blood system and a venous blood system , comprising:positioning an arterial access sheath into a common carotid artery via an insertion site in the patient's neck;blocking blood flow in at least a portion of the common carotid artery to establish retrograde blood flow through the common carotid artery such that blood flows into a lumen of the arterial access device;shunting blood from the common carotid artery to a femoral vein of the patient via the arterial access sheath; andtreating the lesion by deploying a stent on the lesion.2. The method of claim 1 , further comprising making an incision at the insertion site to expose a region of the common carotid artery.3. The method of claim 1 , further comprising deploying a filter in the arterial blood system at a location distal of the lesion.4. The method of claim 1 , wherein the arterial access device comprises a working length of 5 cm to 15 cm.5. The method of claim 2 , further comprising forming a penetration in a wall of a common carotid artery via the incision claim 2 , the penetration being located at distance of around 5 cm to 7 cm below a bifurcation location where the patient's common carotid artery bifurcates into an internal carotid artery and external carotid artery.6. The method of ...

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Номер записи: 33
13-05-2021 дата публикации

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

Номер: US20210138193A1
Автор: Chou Tony M., Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 1. An intravascular access catheter for advancing a medical device for intraluminal medical procedures within the neurovasculature , comprising:a flexible elongate body having a proximal end, a distal end, and a lumen extending therebetween, the flexible elongate body comprising of a plurality of regions, wherein at least one of the plurality of regions of the flexible elongate body are comprised of unreinforced polymer, the distal end having a flexibility sufficient to navigate distal to a petrous portion of an internal carotid artery;a first marker disposed at the distal end of the flexible elongate body; anda proximal extension extending proximally from the proximal end of the flexible elongate body, the proximal extension comprising a metal hypotube having a lumen communicating with the lumen of the flexible elongate body, wherein the proximal extension is formed of one or more different additional materials.2. The catheter of claim 1 , wherein the unreinforced polymer is Pebax.3. The catheter of claim 1 , wherein the plurality of regions of the flexible elongate body comprises three regions.4. The catheter of claim 3 , wherein the three regions comprise claim 3 , a proximal region claim 3 , an intermediate region claim 3 , and a tip ...

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Номер записи: 34
13-05-2021 дата публикации

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

Номер: US20210138194A1
Автор: Chou Tony M., Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 1. An intravascular access catheter for advancing a medical device for intraluminal medical procedures within the neurovasculature , comprising:a flexible elongate body having a proximal end, a distal end, and a lumen extending therebetween, wherein the flexible elongate body comprises a plurality of regions, wherein one of the plurality of regions is a tapered region;a first marker disposed at a distal end of the tapered region;a second marker disposed at a proximal end of the tapered region, wherein the tapered region comprises an unreinforced polymer; anda proximal extension extending proximally from the proximal end of the flexible elongate body, the proximal extension having a lumen communicating with the lumen of the flexible elongate body.2. The access catheter of claim 1 , wherein the proximal extension is formed of two or more different materials.3. The access catheter of claim 2 , wherein one of the two or more different materials of the proximal extension is metal.4. The access catheter of claim 3 , wherein a second material of the two or more different materials of the proximal extension is polymer.5. The access catheter of claim 2 , wherein the two or more materials are arranged coaxially.6. The access catheter of claim 5 , ...

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Номер записи: 35
09-06-2022 дата публикации

RETICLE FOR A VIEWING OPTIC

Номер: US20220179226A1
Автор: Bollig Garrison, Carlson Andy, Cody Tom, Hamilton Samuel, Havens Calen, Klemm Ian, Lewis Alexander, Lowry William, Rue Tim, Schultz Craig, TAYLOR CORY
Принадлежит:

The disclosure relates to a reticle, and particularly a reticle having a marking feature that is translucent. A marking feature may be made from an etched pattern, a gradient, a coating, paint, a filament, or a combination thereof. Reticles may also include an additional feature, such as a center dot, crosshairs, range estimation feature, drop estimation feature, wind point-of-impact estimation feature, moving target point-of-impact feature, and combinations thereof. The additional feature may, but is not required to be, translucent. 1. A reticle comprising a primary marking feature that is translucent.2. The reticle of claim 1 , wherein the primary marking feature is made from an etched pattern claim 1 , a gradient claim 1 , a coating claim 1 , paint claim 1 , a filament claim 1 , or combination thereof.3. The reticle of claim 1 , wherein the primary marking feature is etched with a pattern.4. The reticle of claim 2 , wherein the pattern is a crosshatch pattern.5. The reticle of claim 1 , wherein the primary marking feature is selected from the group consisting of crosshairs claim 1 , duplex crosshairs claim 1 , post reticle claim 1 , German reticle claim 1 , ring reticle claim 1 , triangle reticle claim 1 , broken circle claim 1 , and combinations thereof.6. The reticle of further including an additional element selected from the group consisting of center dot claim 1 , crosshairs claim 1 , range estimation feature claim 1 , drop estimation feature claim 1 , wind point-of-impact estimation feature claim 1 , moving target point-of-impact feature claim 1 , and combinations thereof.7. The reticle of claim 6 , wherein the additional element is not translucent.8. The reticle of claim 6 , wherein the additional element is translucent.9. The reticle of claim 1 , wherein the amount of light passing through the primary marking feature is from less than 100% to greater than or equal to 60%.10. The reticle of claim 9 , wherein the amount of light passing through the primary ...

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Номер записи: 36
03-05-2018 дата публикации

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

Номер: US20180116684A1
Автор: Chou Tony M., Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 1. A method of performing a medical procedure at a treatment site in a cerebral vessel of a patient , the method comprising: a catheter having a catheter lumen and a distal end; and', 'a tapered inner member extending through the catheter lumen, wherein a distal end of the tapered inner member extends distal to the distal end of the catheter; and, 'assembling a coaxial system of devices, the assembled coaxial system of devices comprisingadvancing the assembled coaxial system of devices together within the petrous portion of the internal carotid artery, wherein the assembled coaxial system is advanced without a guidewire.2. The method of claim 1 , further comprising removing the tapered inner member after the catheter is placed at or near the treatment site.3. The method of claim 2 , further comprising advancing a treatment device into the lumen of the catheter so that the treatment device resides at or near the treatment site.4. The method of claim 2 , further comprising removing occlusive material while applying a negative pressure to the catheter lumen to capture occlusive material at claim 2 , within claim 2 , or through the distal end of the catheter.5. The method of claim 4 , wherein the step of removing occlusive material comprises ...

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Номер записи: 37
16-04-2020 дата публикации

Systems and methods for aspirating from a body lumen

Номер: US20200113587A1
Автор: Michi E. Garrison, Sieu T. Duong
Принадлежит: Silk Road Medical Inc

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.

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Номер записи: 38
12-05-2016 дата публикации

Suture Delivery Device

Номер: US20160128688A1
Автор: Chou Tony M., Garrison Michi E., Hyde Gregory M., Renati Richard J., Schaer Alan K.
Принадлежит:

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. 1. A method of performing a procedure on a vascular or cardiac structure comprising:inserting a first sheath into the common carotid artery through an arteriotomy in the wall of the common carotid artery;inserting at least one therapeutic device through the sheath to a treatment site, performing a therapeutic procedure, and removing the at least one therapeutic device from the sheath;inserting a suture delivery device into the common carotid artery through the arteriotomy;drawing at least one end of a suture outside the body of the patient using the suture delivery device such that the suture can be held until such time as the suture is to be tied off to create a permanent closure of the arteriotomy;removing the suture delivery device; andtying off the ends of the suture to close the arterial access site.2. A method as in claim 1 , further comprising the step of occluding the common carotid artery.3. A method as in claim 2 , wherein the first sheath includes a Y-arm connection to a flow line and further comprising the step of connecting the sheath to a reverse flow shunt.4. A method as in claim 1 , wherein the first sheath includes a detachable proximal extension tube claim 1 , and further comprising the step of removing the proximal extension tube prior to inserting the suture delivery device.511. A method as in claim claim 1 , further comprising actuating a vessel wall locator for a first position which is generally in line with the elongate body to a second position which is generally extended away from said body.6. A method as in ...

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Номер записи: 39
21-05-2015 дата публикации

SYSTEMS AND METHODS FOR TREATING A CAROTID ARTERY

Номер: US20150141760A1
Автор: Chou Tony M., Garrison Michi E., Hyde Gregory M., Renati Richard, SCHAER Alan
Принадлежит:

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. 1. A system for treating a carotid artery , comprising:an arterial access device wherein the access device includes a distal sheath adapted to be transcervically introduced into a carotid artery, the arterial access device further including a proximal extension having a distal end, a proximal end, and a lumen therebetween, wherein the distal end of the proximal extension is connected to a proximal end of the distal sheath at a junction so that the lumens of each are contiguous;an interventional catheter adapted for transcervical insertion into the carotid artery via the arterial access device, wherein the interventional catheter is adapted to deploy a stent.2. The system of claim 1 , wherein the arterial access device is adapted to receive blood flow from the carotid artery claim 1 , and further comprising:a shunt fluidly connected to the arterial access device, wherein the shunt provides a pathway for blood to flow from the arterial access device to a return site;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, wherein the flow control assembly includes one or more components that interact with the blood flow through the shunt.3. The system of claim 1 , wherein the catheter has a working length suitable for deployment through a transcervical access sheath into the common carotid artery.4. The system of claim 3 , wherein the working length is within the range of approximately 40 cm to 60 cm.5. The system of claim 3 , wherein the working length ...

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Номер записи: 40
17-05-2018 дата публикации

Methods And Systems For Treatment Of Acute Ischemic Stroke

Номер: US20180133436A1
Автор: Chou Tony M., Garrison Michi E.
Принадлежит:

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. 1. A method of performing a medical procedure at a treatment site in a cerebral vessel of a patient , the method comprising: a catheter having a catheter lumen and a distal end; and', 'a tapered inner member extending through the catheter lumen, wherein a distal end of the tapered inner member extends distal to the distal end of the catheter, the tapered inner member having a lumen; and, 'assembling a coaxial system of devices, the assembled coaxial system of devices comprisingadvancing the assembled coaxial system of devices together after the distal end of the catheter is distal to the petrous portion of the internal carotid artery.2. The method of claim 1 , further comprising removing the tapered inner member after the catheter is placed at or near the treatment site.3. The method of claim 2 , further comprising advancing a treatment device into the lumen of the catheter so that the treatment device resides at or near the treatment site.4. The method of claim 2 , further comprising removing occlusive material while applying a negative pressure to the catheter lumen to capture occlusive material at claim 2 , within claim 2 , or through the distal end of the catheter.5. The method of claim 4 , wherein the step of removing occlusive material comprises:inserting a retrievable ...

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Номер записи: 41
18-05-2017 дата публикации

Transcarotid Neurovascular Catheter

Номер: US20170136212A1
Автор: Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 119-. (canceled)20. A method of treating an artery , comprising:introducing an interventional catheter formed of elongated body into a common carotid artery via an access location in a neck, the elongated body sized and shaped to be introduced into the common carotid artery at the access location in the neck, wherein the elongated body includes an internal lumen forming a proximal opening in a proximal region of the elongated body and a distal opening in a distal region of the elongated body, and wherein the elongated body has a proximal most section and a distal most section wherein the proximal most section is a stiffest portion of the elongated body and wherein the elongated body has an overall length and a distal most section length such that the distal most section can be positioned in an intracranial artery and while simultaneously at least a portion of the proximal most section is positioned in the common carotid artery during use;:(a) wherein the distal most section of the catheter has an inner diameter of 0.068 to 0.095 inch;(b) wherein the catheter can navigate around a 180° bend with a radius of 0.100″ without kinking;(c) wherein the catheter does not collapse when connected to a vacuum up to 25 inHg while navigating around a 180° bend with a radius of 0.100″;navigating the elongated body distally to an intracranial artery through the common carotid artery.21. A method as in claim 20 , wherein the elongated body includes a first transition section between the proximal section and the distal most section claim 20 , and wherein the transition ...

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Номер записи: 42
08-09-2022 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

Номер: US20220280753A1
Автор: Chou Tony M., Garrison Michi E.
Принадлежит:

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. 1. A catheter system comprising:an access sheath comprising a tubular sheath body with a central lumen having an inner diameter, a proximal end and a distal opening,and a connector operably connected with the sheath body and attachable to a fluid source or aspiration source via the connector; anda catheter comprising a distal portion and a proximal tether extending proximally from a point of attachment between the proximal tether and the distal portion, wherein the distal portion has a single inner lumen, and wherein the catheter is configured to extend from a femoral access site to a carotid artery,wherein the catheter is configured to slide within the central lumen of the sheath body to change the relative position of the catheter within the central lumen and provide for at least a portion of the distal portion to extend outward from the distal opening of the sheath body such that an overlap region is formed between the catheter and the access sheath,wherein a fluid lumen is collectively formed by the single inner lumen of the catheter and the central lumen of the access sheath, andwherein a proximal end region of the catheter comprises an inclined surface flaring outward in a proximal direction, wherein the inclined surface is formed in a thickened portion of the catheter ...

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Номер записи: 43
15-09-2022 дата публикации

INTERVENTIONAL SYSTEMS AND ASSOCIATED DEVICES AND METHODS

Номер: US20220287817A1
Автор: Dell Kent D., Elkins Jeffrey M., Garrison Michi E., Lagoe Daniel T., Mendoza Herbert M.
Принадлежит:

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. 1. A device for modifying and/or removing obstructive material from a lumen of a blood vessel , the device comprising:an elongated member having a proximal portion and a distal portion configured to be intravascularly positioned at a treatment site in a blood vessel adjacent obstructive material;a cutting portion disposed at the distal portion of the elongated member, the cutting portion including a cutting element, wherein the cutting portion has a collapsed, low-profile state for delivery to the treatment site and a deployed state for cutting obstructive material at the treatment site, and wherein the cutting element extends radially away from the longitudinal axis of the elongated member in the deployed state; anda capturing portion disposed at the distal portion of the elongated member, wherein the capturing portion is configured to collect obstructive material that has been dislodged by the cutting portion.2. The device of claim 1 , wherein the capturing portion is positioned distal of the cutting portion along the elongated member.3. The device of claim 1 , wherein the capturing portion is self-expandable.4. The device of claim 1 , wherein the elongated member comprises a first elongated member and a second elongated member claim 1 , and wherein the cutting portion is disposed at a distal portion of the first elongated member and the capturing portion is ...

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Номер записи: 44
16-05-2019 дата публикации

Viewing Optic with an Integrated Display System

Номер: US20190146205A1
Автор: Bollig Garrison, Carlson Andrew, Hamilton David M., Hamilton Samuel, Havens Calen, Klemm Ian, Lowry Will, Lyle Jason, Schultz Craig
Принадлежит:

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system. 1. A viewing optic comprising: (i) a main body with an optical system for generating an image of an outward scene along a viewing optical axis and a beam combiner and (ii) a base coupled to the main body and having an active display for generating an image and a reflective material for directing the generated image to the beam combiner for simultaneous overlaid viewing of the generated image and image of the outward scene in a first focal plane of the optical system , the base further having a compartment for one or more power sources for the viewing optic.2. The viewing optic of claim 1 , wherein an outer portion of the compartment has an attachment site for a mounting rail.3. The viewing optic of claim 2 , wherein the attachment site is for a picatinny rail.4. The viewing optic of claim 1 , wherein the beam combiner is located between an objective assembly of the main body and a first focal plane positioned and spaced along the viewing optical axis.5. The viewing optic of claim 1 , wherein the beam combiner is located approximately beneath an elevation knob of the viewing optic.6. The viewing optic of claim 1 , wherein the beam combiner is located closer to an objective assembly as compared to an ocular assembly of the viewing optic.7. The viewing optic of claim 1 , wherein the reflective material is a mirror that is angled.8. The viewing optic of claim 7 , wherein the mirror is angled from about 40° to about 50° relative to the emitted light of the display.9. The viewing optic of claim 1 , wherein the base is from 40% to 65% the length of the main body.10. The viewing optic of claim 1 , wherein the power source is a battery.11. A system ...

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Номер записи: 45
09-06-2016 дата публикации

Systems And Methods For Treating A Carotid Artery

Номер: US20160158044A1
Автор: Chou Tony M., Garrison Michi E., Hyde Gregory M., Renati Richard, SCHAER Alan
Принадлежит:

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. 1. A method for treating a carotid artery , comprising:inserting an arterial access device into a common carotid artery, wherein the access device includes a distal sheath adapted to be transcervically introduced into a carotid artery through a penetration in a wall of the carotid artery; (a) an elongated inner member having a distal region on which the stent may be mounted, the elongated inner member further having a protrusion on a proximal portion of the elongated inner member;', '(b) an elongated stent containment sheath coaxially positioned over the inner member, the stent containment sheath formed by an annular side wall, wherein an opening is formed through a proximal portion of the annular side wall of the stent containment sheath, and wherein the protrusion of the inner member extends outward through the opening such that the protrusion of the inner member may be accessed by a user at a location outside the stent containment sheath;, 'inserting an interventional catheter adapted for transcervical insertion into the carotid artery via the arterial access device, wherein the interventional catheter is adapted to deploy a stent and wherein the interventional catheter includes a first hemostasis valve positioned on a proximal end of the arterial access device, and wherein the interventional catheter is formed oftreating an artery using the interventional catheter.2. A method as in claim 1 , wherein the arterial access device is adapted to receive blood flow from the carotid artery claim 1 , and further comprising:a flow control assembly coupled to the shunt and ...

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Номер записи: 46
09-06-2016 дата публикации

Methods and Devices for Transcarotid Access

Номер: US20160158502A1
Автор: Herbert Mendoza, Marlon Moreno, Michael P. Wallace, Michi E. Garrison, Stewart M. Kume
Принадлежит: Silk Road Medical Inc

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.

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Номер записи: 47
07-06-2018 дата публикации

METHODS AND SYSTEMS FOR ESTABLISHING RETROGRADE CAROTID ARTERIAL BLOOD FLOW

Номер: US20180154063A1
Автор: Chou Tony M., Criado Enrique, Garrison Michi E., Hyde Gregory M., Renati Richard, SCHAER Alan
Принадлежит:

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. 114.-. (canceled)15. A system for use in accessing and treating a carotid artery , said system comprising:an arterial access sheath formed of an elongated body sized and shaped to be introduced into a common carotid artery, the arterial access sheath having an internal lumen that can receive blood flow;a shunt that fluidly communicates with the arterial access sheath, wherein the shunt provides a pathway for blood to flow from the arterial access sheath; anda flow control assembly mechanically attached to the pathway of the shunt, wherein the flow control assembly defines two or more parallel flow paths and a valve to open or close one or more of the flow paths to selectively direct blood flow through one or more of the flow paths.16. A system as in claim 15 , further comprising a port fluidly communicating with the shunt claim 15 , wherein the port may be used to connect an aspiration device to the shunt.17. A system as in claim 16 , further comprising an control valve that controls fluid communication between the shunt and the port.18. A system as in claim 17 , wherein the control valve automatically opens upon attachment of an aspiration or injection device claim 17 , and wherein the control valve automatically closes with removal of the aspiration or injection device.19. A system as in claim 16 , wherein the aspiration ...

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Номер записи: 48
23-05-2019 дата публикации

Suture Delivery Device

Номер: US20190150916A1
Автор: Garrison Michi E., Hentges Ronald
Принадлежит:

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. 116-. (canceled)17. A method comprising: a body comprising the suture element held within the body and at least one suture capture rod within the body, the suture capture rod being operatively associated with the suture element and arranged to pass the suture element through the vessel wall such that opposed portions of the suture element extend from the vessel wall, the body further comprising a distal housing portion at a distal end of the body;', 'a proximal guidewire extension; and', 'a removable guidewire segment;', 'wherein the assembly comprises a first configuration and a second configuration;', 'wherein in the first configuration the removable guidewire segment is removably attached to the distal housing portion of the body and detached from the proximal guidewire segment, and in the second configuration the removable guidewire segment is detached from the body and removably attached via a coupling component to a distal end of the proximal guidewire extension such that there is a first smooth transition at a first juncture between the proximal guidewire extension and the coupling component and a second smooth transition at a second juncture between the removable guidewire segment and the coupling component;', 'wherein the assembly is configured to pass the suture element through the vessel wall in the first configuration., 'delivering, via an assembly, a suture element to an aperture in a vessel wall, the assembly comprising18. The method of claim 17 , wherein the ...

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Номер записи: 49
16-06-2016 дата публикации

Transcarotid Neurovascular Catheter

Номер: US20160166804A1
Автор: Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 1. A method of treating an artery , comprising:introducing an interventional catheter formed of elongated body into a common carotid artery via an access location in a neck, the elongated body sized and shaped to be introduced into the common carotid artery at the access location in the neck, wherein the elongated body includes an internal lumen forming a proximal opening in a proximal region of the elongated body and a distal opening in a distal region of the elongated body, and wherein the elongated body has a proximal most section and a distal most section wherein the proximal most section is a stiffest portion of the elongated body and wherein the elongated body has an overall length and a distal most section length such that the distal most section can be positioned in an intracranial artery and while simultaneously at least a portion of the proximal most section is positioned in the common carotid artery during use;:(a) wherein the distal most section of the catheter has an inner diameter of 0.035 to 0.062 inch;(b) wherein the catheter can navigate around a 180° bend with a radius of 0.100″ without kinking;(c) wherein the catheter does not collapse when connected to a vacuum up to 25 inHg while navigating around a 180° bend with a radius of 0.100″;navigating the elongated body distally to an intracranial artery through the common carotid artery.2. A method as in claim 1 , wherein the elongated body includes a first transition section between the proximal section and the distal most section claim 1 , and wherein the transition section has a stiffness ...

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Номер записи: 50
25-06-2015 дата публикации

Methods and Systems for Treatment of Acute Ischemic Stroke

Номер: US20150173782A1
Автор: Chou Tony M., Garrison Michi E.
Принадлежит:

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. 1. A system of devices for treating an artery , comprising:an arterial access sheath adapted to introduce an interventional catheter into an artery, the arterial access sheath including a sheath body sized and shaped to be introduced into a common carotid artery via a carotid artery access site, the sheath body defining an internal lumen that provides a passageway for introducing a catheter into the common carotid artery when the first elongated body is positioned in the common carotid artery, wherein the sheath body has a proximal section and a distalmost section that is more flexible than the proximal section, and wherein 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;an elongated dilator positionable within the internal lumen of the sheath body, wherein the arterial access sheath and the dilator can be collectively introduced into the common carotid artery; anda 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 body sized and shaped to be navigated distally to a intracranial artery through the common ...

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Номер записи: 51
25-06-2015 дата публикации

Transcarotid Neurovascular Catheter

Номер: US20150174368A1
Автор: Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 1. An interventional catheter for treating an artery , comprising: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 sized and shaped to be navigated distally to an intracranial artery through the common carotid artery via the access location in the neck;an internal lumen in the elongated body, the internal lumen forming a proximal opening in a proximal region of the elongated body and a distal opening in a distal region of the elongated body;wherein the elongated body has a proximal most section and a distal most section wherein the proximal most section is a stiffest portion of the elongated body, and wherein the elongated body 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.2. A catheter as in claim 1 , wherein the elongated body includes a first transition section between the proximal section and the distal most section claim 1 , and wherein the transition section has a stiffness between a stiffness of the proximal most section and the distal most section.3. A catheter as in claim 1 , wherein the elongated body has a working length and wherein the distal most section is between 3% and 15% of the length of the working length of the elongated body.4. A catheter as in claim 1 , wherein the elongated body has a working length and wherein the distal most section is between ...

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Номер записи: 52
21-05-2020 дата публикации

VIEWING OPTIC WITH AN INTEGRATED DISPLAY SYSTEM

Номер: US20200159003A1
Автор: Bollig Garrison, Carlson Andrew, Hamilton David M., Hamilton Samuel, Havens Calen, Klemm Ian, Lowry Will, Lyle Jason, Schultz Craig
Принадлежит:

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system. 1. A viewing optic comprising: (i) a main body with an optical system having a moveable optical element for generating an image of an outward scene , a turret for adjustment of the moveable optical element and (ii) a base coupled to the main body and having an active display configured to generate a digital aim point that is viewed in a first focal plane of the optical system , wherein the digital aim point is unaffected by adjustment of the turret.2. The viewing optic of claim 1 , further comprising a beam combiner located between an objective assembly of the main body and the first focal plane.3. The viewing optic of claim 1 , wherein the beam combiner is located approximately beneath an elevation knob of the viewing optic.4. The viewing optic of claim 1 , wherein the beam combiner is located closer to an objective assembly as compared to an ocular assembly of the viewing optic.5. The viewing optic of claim 2 , wherein the base further comprises a reflective material configured to direct the digital aim point to the beam combiner.6. The viewing optic of claim 5 , wherein the reflective material is a mirror that is angled.7. The viewing optic of claim 6 , wherein the mirror is angled from about 40° to about 50° relative to emitted light of the display.8. The viewing optic of claim 6 , wherein the mirror is angled at about 45° relative to emitted light of the display.9. The viewing optic of claim 1 , further comprising a collector lens system to collect light from the active display.10. The viewing optic of claim 1 , wherein the base is from 40% to 65% the length of the main body.11. A viewing optic comprising:a main body having (i) an optical ...

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Номер записи: 53
28-05-2020 дата публикации

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

Номер: US20200164178A1
Автор: Chou Tony M., Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 1. A catheter advancement element used to navigate through a blood vessel bifurcation region comprising:a first section;a second section distal of the first section, a second section outer diameter being larger than a first section diameter; anda distal tip of the second section, a distal tip outer diameter being smaller than the second section outer diameter;wherein the second section is configured to minimize open space between the catheter advancement element and a lumen of a catheter when the catheter advancement element is disposed within the lumen of the catheter, wherein the open space includes a gap between the catheter advancement element and the lumen of the catheter to allow the catheter advancement element to move within and beyond the catheter;wherein the second section is positioned at least partially, distally beyond a distal end of the catheter, and wherein the gap is formed by a difference between the second section outer diameter and an inner diameter of the lumen.2. The catheter advancement element of claim 1 , wherein the second section outer diameter is 0.003″ smaller than the inner diameter of the lumen.3. The catheter advancement element of claim 1 , wherein the second section outer diameter is 0.070 inches and the ...

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Номер записи: 54
30-06-2016 дата публикации

Diesel engine powered transportation refrigeration system

Номер: US20160185187A1
Автор: Benjamin Edward FERGUSON, Daniel M. Maybury, Garrison S. MOSELEY, John T. Steele, Rasmus Sørensen
Принадлежит: Carrier Corp

A transport refrigeration system ( 10 ) includes a refrigerant vapor compression transport unit ( 12 ) including a compressor ( 14 ). A drive unit is utilized to provide power to the compressor. The drive unit includes a diesel powered engine ( 32 ) and a diesel particulate filter in operable communication with the diesel powered engine to filter combustion particulates from an exhaust gas output from the diesel powered engine. An air control valve is in operable communication with the diesel powered engine to control a flow of air into an air inlet of the diesel powered engine, thereby controlling an exhaust gas temperature of the diesel engine to aid in regeneration of the diesel particulate filter.

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Номер записи: 55
13-06-2019 дата публикации

Methods and Devices for Transcarotid Access

Номер: US20190175885A1
Автор: Garrison Michi E., Kume Stewart M., Mendoza Herbert, Moreno Marlon, Wallace Michael P.
Принадлежит:

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. 122-. (canceled)23. A method for introducing an interventional device into a common carotid artery , the method comprising:introducing an arterial access sheath and an elongated first dilator into a common carotid artery via an access site while the first dilator is positioned within the arterial access sheath, and wherein:a) the arterial access sheath includes a sheath body defining an internal delivery lumen; andb) the first dilator has a tapered distal tip and a first internal guidewire lumen, wherein at least a portion of the first dilator has a first bending stiffness;removing the first dilator from the arterial access sheath; andintroducing an elongated second dilator into the internal delivery lumen while the sheath body is positioned within the common carotid artery, the second dilator having a tapered distal tip and a second internal guidewire lumen, wherein the second dilator has a distal region having a second bending stiffness less than the first bending stiffness of the first dilator.24. A method as in claim 23 , wherein the first dilator has a distal section that is more ...

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Номер записи: 56
04-06-2020 дата публикации

SUTURE DELIVERY DEVICE

Номер: US20200170637A1
Автор: Chou Tony M., Garrison Michi E., Hyde Gregory M., Renati Richard J., Schaer Alan K.
Принадлежит:

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. 18-. (canceled)9. A method of performing a procedure on a vascular structure comprising:inserting a first sheath into a blood vessel through an opening in a wall of the blood vessel, wherein a suture delivery device is coupled to the first sheath such that a distal region of the suture delivery device extends distal to a distal region of the sheath to provide access to the blood vessel wall for the suture delivery device;inserting at least one therapeutic device through the sheath to a treatment site;performing a therapeutic procedure using the at least one therapeutic device;removing the at least one therapeutic device from the sheath;using the suture delivery device to draw at least one end of a suture outside the blood vessel such that the suture can be held until such time as the suture is to be tied off to create a closure of the opening in the blood vessel;removing the suture delivery device; andtying off the ends of the suture to close the opening.10. A method as in claim 9 , further comprising the step of occluding the blood vessel.11. A method as in claim 10 , wherein the first sheath includes a Y-arm connection to a flow line and further comprising the step of connecting the sheath to a reverse flow shunt.12. A method as in claim 9 , wherein the first sheath includes a detachable proximal extension tube claim 9 , and further comprising the step of removing the proximal extension tube.13. A method as in claim 9 , wherein the suture delivery device is formed of an elongate body having a movable arm claim 9 , and further ...

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Номер записи: 57
04-06-2020 дата публикации

TRANSCAROTID NEUROVASCULAR CATHETER

Номер: US20200171277A1
Автор: Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 119-. (canceled)20. An interventional catheter for treating an artery , comprising:an elongated body adapted to be inserted into a common carotid artery via an access location in the neck such that the elongated body can be navigated distally to an artery in a brain through the common carotid artery via the access location, the elongated body having an internal lumen, a proximal opening, and a distal opening;wherein the elongated body has a proximal most section and a distal most section, the proximal most section being a stiffest portion of the elongated body, and wherein the elongated body has an overall length such that the distal most section can be positioned in the artery in the brain while the proximal most section is positioned in the common carotid artery during use;wherein the distal most section of the catheter has an inner diameter of 0.035 to 0.062 inch;wherein the catheter can navigate around a 180° bend with a radius of 0.100″ without kinking; andwherein the catheter does not collapse when connected to a vacuum up to 25 inHg while navigating around a 180° bend with a radius of 0.100″.21. A catheter as in claim 20 , wherein the elongated body includes a first transition section between the proximal section and the distal most section claim 20 , and wherein the transition section has a stiffness between a stiffness of the proximal most section and the distal most section.22. A catheter as in claim 20 , wherein the elongated body has a working length and wherein the distal most section is between 3% and 15% of the length of the working length of ...

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Номер записи: 58
15-07-2021 дата публикации

SUTURE DELIVERY DEVICE

Номер: US20210212679A1
Автор: Garrison Michi E., Hentges Ronald
Принадлежит:

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. 116-. (canceled)17. A method , comprising:introducing, into a vessel wall, a removable guidewire segment and a distal end of a body, the removable guidewire segment removably attached to a distal housing portion at the distal end of the body, the body comprising a suture element held within the body and at least one suture capture rod within the body, the suture capture rod being operatively associated with the suture element and arranged to pass the suture element through the vessel wall such that opposed portions of the suture element extend from the vessel wall;deploying, via the body, the suture element into the vessel wall;exposing, from the vessel wall and while maintaining pressure on the suture element, the distal housing portion of the body;detaching, from the removable guidewire segment and at the distal housing portion, the body such that a proximal end of the removable guidewire segment is detached and outside of the vessel wall; andattaching, to the proximal end of the removable guidewire segment and via a coupling component, a distal end of a proximal guidewire extension, wherein there is a first smooth transition at a first juncture between the proximal guidewire extension and the coupling component and a second smooth transition at a second juncture between the removable guidewire segment and the coupling component.18. The method of claim 17 , further comprising:prior to introducing, into the vessel wall, the removable guidewire segment and the distal end of ...

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Номер записи: 59
05-07-2018 дата публикации

Transcarotid Neurovascular Catheter

Номер: US20180185614A1
Автор: Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 119-. (canceled)20. An interventional catheter for treating an artery , comprising:an elongated body adapted to be inserted into a common carotid artery via an access location in the neck such that the elongated body can be navigated distally to an intracranial artery through the common carotid artery via the access location, the elongated body having an internal lumen, a proximal opening, and a distal opening;wherein the elongated body has a proximal most section and a distal most section, the proximal most section being a stiffest portion of the elongated body, and wherein the elongated body has an overall length such that the distal most section can be positioned in an intracranial artery while the proximal most section is positioned in the common carotid artery during use;wherein the distal most section of the catheter has an inner diameter of 0.035 to 0.062 inch;wherein the catheter can navigate around a 180° bend with a radius of 0.100″ without kinking; andwherein the catheter does not collapse when connected to a vacuum up to 25 inHg while navigating around a 180° bend with a radius of 0.100″.21. A catheter as in claim 20 , wherein the elongated body includes a first transition section between the proximal section and the distal most section claim 20 , and wherein the transition section has a stiffness between a stiffness of the proximal most section and the distal most section.22. A catheter as in claim 20 , wherein the elongated body has a working length and wherein the distal most section is between 3% and 15% of the length of the working length ...

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Номер записи: 60
18-06-2020 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

Номер: US20200187965A1
Автор: Chou Tony M., Garrison Michi E.
Принадлежит:

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. 1. A system for intracranial access through a patient's vasculature to access an intracranial occlusion , the system comprising:an inner member for steering and advancing through the patient's vasculature, the inner member having a distal tip region, a tapered section and a proximal section, wherein an axis of the inner member passes centrally through the proximal section, the tapered section, and at least partially through the distal tip region, wherein the proximal section, proximal to the distal tip region, has a cylindrical surface having an outer diameter greater than the distal tip region, wherein the proximal section is configured to advance the inner member through the vasculature, and wherein the proximal section, the tapered section, and the distal tip region have a passage therethrough configured for passage and relative movement of a wire; anda distal access catheter operatively connected to the inner member and wherein the distal access catheter has a distal inner diameter substantially corresponding to the outer diameter of the cylindrical surface, wherein the cylindrical surface of the inner member is maintained at least partially distal of a distal end of the catheter during advancement through the patient's vasculature, and ...

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Номер записи: 61
29-07-2021 дата публикации

METHODS AND DEVICES FOR TRANSCAROTID ACCESS

Номер: US20210228847A1
Автор: Garrison Michi E., Kume Stewart M., Mendoza Herbert, Moreno Marlon, Wallace Michael P.
Принадлежит:

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. 122-. (canceled)23. A method for introducing an interventional device into an artery , the method comprising:introducing an arterial access sheath and an elongated first dilator into the artery via an access site while the first dilator is positioned within the arterial access sheath, and wherein:a) the arterial access sheath includes a sheath body defining an internal delivery lumen; andb) the first dilator has a tapered distal tip and a first internal guidewire lumen, wherein at least a portion of the first dilator has a first bending stiffness;removing the first dilator from the arterial access sheath; andintroducing an elongated second dilator into the internal delivery lumen while the sheath body is positioned within the artery, the second dilator having a tapered distal tip and a second internal guidewire lumen, wherein the second dilator has a distal region having a second bending stiffness less than the first bending stiffness of the first dilator.24. A method as in claim 23 , wherein the first dilator has a distal section that is more flexible than a proximal section of the first ...

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Номер записи: 62
02-10-2014 дата публикации

SYSTEMS AND METHODS FOR ASPIRATING FROM A BODY LUMEN

Номер: US20140296868A1
Автор: Duong Sieu, Garrison Michi E.
Принадлежит: Silk Road Medical, Inc.

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. 1. A device for aspirating fluid from a body lumen , comprising:a chamber configured to contain fluid, the chamber having an opening through which fluid can be injected out of the chamber and through which fluid can be aspirated into the chamber;a plunger having a plunger seal movably positioned inside the chamber;first and second finger elements coupled to the chamber and the plunger, wherein movement of the first and second finger elements toward one another causes relative movement between the plunger seal and the chamber so as to aspirate fluid into the chamber;a locking mechanism movable between a first state and a second state, wherein the locking mechanism locks a position of the plunger seal relative to chamber when the locking mechanism is in the first state, and the locking mechanism permits relative movement of the plunger seal relative to chamber when the locking mechanism is in the second state.2. A device as in claim 1 , wherein the finger elements are tabs.3. A device as in claim 1 , wherein the device has a pistol grip.4. A device as in claim 3 , wherein the locking mechanism is positioned such that a user can use a thumb to change the state of the locking mechanism when the pistol grip is in the hand of the user.5. A device as in claim 1 , wherein the chamber is removably attached to the device.6. A device as in claim 1 , wherein the locking mechanism comprises a latch.7. An adapter for connecting a female luer connector to an aspiration device claim 1 , the adapter comprising:a structure having a first end with an opening ...

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Номер записи: 63
27-07-2017 дата публикации

SYSTEMS AND METHODS FOR TRANSCATHETER AORTIC VALVE TREATMENT

Номер: US20170209260A1
Автор: Chou Tony M., Garrison Michi E., Hyde Gregory M.
Принадлежит:

Devices and methods are configured to allow transcervical 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. 120-. (canceled)21. A method of treating an aortic valve , comprising:forming a penetration at the neck of a patient in a wall of a common carotid artery;introducing an access sheath through the penetration;occluding the artery by inflation;inserting a guide wire through the access sheath and across the native aortic valve;deploying a filter to provide embolic protection in an artery;introducing a prosthetic valve through the access sheath and percutaneously deploying the prosthetic valve at or near the position of the native aortic valve.22. A method as in claim 21 , further comprising:removing the access sheath;closing the penetration.23. A method as in claim 21 , further comprising applying a closure device at a site of the penetration before introducing the arterial access sheath through the penetration.24. A method as in claim 23 , wherein the closure device comprises a suture-based closure device.25. A method as in claim 21 , further comprising applying aspiration to the artery through the access sheath.26. A method as in claim 25 , further comprising regulating a rate of the aspiration.27. A method as in claim 21 , wherein the filter is coupled to the arterial access sheath.28. A method as in claim 21 , wherein the filter is configured to be deployed across the ostium of the artery.29. A method as in claim 21 , wherein the filter is configured to be deployed across at least one of the innominate artery claim 21 , left common carotid artery claim 21 , or left subclavian artery.30. A method as in claim 21 , wherein the filter is configured to be deployed across the aorta.31. A method as in claim 21 , wherein the filter is integral with ...

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Номер записи: 64
05-08-2021 дата публикации

METHODS AND SYSTEMS FOR ESTABLISHING RETROGRADE CAROTID ARTERIAL BLOOD FLOW

Номер: US20210236790A1
Автор: Duong Sieu T., Garrison Michi E., Kume Stewart M.
Принадлежит:

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. 112-. (canceled)13. A transcarotid access sheath system , comprising:a distal sheath body defining an internal lumen, the sheath body sized and shaped to be introduced into an opening in a carotid artery and receive blood flow from the carotid artery;an elongated tubing attached to a proximal end of the sheath body;a Y-adapter at a proximal end of the elongated tubing, the Y-adapter including a hub adapted to be removably connected to a flow shunt line, the Y-adapter further including a valve positioned immediately adjacent to an internal lumen of the transcarotid access sheath system, wherein the valve regulates fluid flow out of the internal lumen of the transcarotid access sheath system relative to the hub;a proximal extension connected to a proximal end of the adapter, the proximal extension formed of an elongated body;a hemostasis valve at a proximal end of the proximal extension such that the proximal extension spaces apart the hemostasis valve from the adapter; anda flush line connected to a proximal end of the proximal extension and providing a passageway for fluid to be flushed into the sheath body.14. A transcarotid access sheath system as in claim 13 , further comprising an eyelet located adjacent a proximal region of the distal sheath.15. A transcarotid access sheath system as in claim 13 , wherein the eyelet is positioned at a connection between the sheath body and the elongated tubing.16. A transcarotid access sheath system as in claim 13 , wherein the valve transitions between an open state that permits flow out of the internal lumen of the ...

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Номер записи: 65
04-08-2016 дата публикации

Rapid aspiration thrombectomy system and method

Номер: US20160220741A1
Автор: Michi E. Garrison, Scott D. Wilson, Tony M. Chou
Принадлежит: Route 92 Medical Inc, Silk Road Medical Inc

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.

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Номер записи: 66
12-08-2021 дата публикации

SYSTEMS AND METHODS FOR TRANSCATHETER AORTIC VALVE TREATMENT

Номер: US20210244522A1
Автор: Garrison Michi E., Macdonald Sumaira, Rogers Erica J., Wallace Michael P.
Принадлежит:

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. 19-. (canceled)10. A system for transcatheter aortic valve treatment , comprising: wherein the arterial access sheath has a first lumen configured to receive a valve delivery system, the valve delivery system configured to deliver a prosthetic valve into a heart or aorta through the arterial access sheath, the first lumen having a first opening at a proximal end of the arterial access sheath and a distal opening at a distal most end of the arterial access sheath;', 'wherein the arterial access sheath further has a perfusion lumen with a proximal end and a distal opening and wherein the perfusion lumen has a length such that the distal opening of the perfusion lumen can be positioned in and perfuse an artery when in use;, 'an arterial access sheath adapted to be introduced into an access site at the left or right carotid artery, or left or right subclavian artery,'}an elongated body having a shunt lumen, the elongated body configured to fluidly connect an external source of perfusion fluid to the perfusion lumen of the arterial access sheath, wherein the elongated body receives perfusion fluid only from a source of perfusion fluid other than the arterial access sheath; andthe valve delivery system, wherein the valve delivery system fits within the first lumen of the arterial access sheath.11. A system as in claim 10 , wherein the distal opening of the perfusion lumen has a radiopaque marker.12. A system as in claim 10 , wherein the arterial blood source comprises a sheath in a femoral artery.13. A system as in claim 10 , wherein the shunt incorporates an active pump.14. A system as in claim 10 , wherein the shunt further comprises an in-line ...

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Номер записи: 67
09-08-2018 дата публикации

Viewing Optic with an Integrated Display System

Номер: US20180224241A1
Автор: Bollig Garrison, Carlson Andrew, Hamilton David M., Hamilton Samuel, Havens Calen, Klemm Ian, Lowry Will, Lyle Jason, Schultz Craig
Принадлежит:

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system. 1. A viewing optic comprising:a body having an objective lens system at one end that focuses a target image from an outward scene,an ocular lens system at the other end of the body and a movable erector tube with an erector lens system located between the objective and ocular systems, the erector lens system, the objective lens system and the ocular lens system forming a first optical system having a first focal plane and a second focal plane, with a first reticle at the first focal plane that moves in conjunction with the movable erector tube;a beam combiner located between the first focal plane and the objective assembly; anda second optical system with an active display for generating an image and a lens system that collects light from the active display, and a reflective material that directs the generated image from the active display to the beam combiner where the image from the active display and the target image from the objective lens system are combined into the first focal plane and viewed simultaneously.2. The viewing optic of claim 1 , wherein the generated image from the active display is not tied to the movement of the erector tube.3. The viewing optic of claim 2 , wherein the generated image is a digital reticle4. The viewing optic of claim 1 , wherein the beam combiner is located from 5 to 25 mm from the objective assembly.5. The viewing optic of further comprising a focusing cell located between the beam combiner and the objective assembly.6. The viewing optic of further comprising a rod connecting the focusing cell to a parallax adjustment knob.7. The viewing optic of wherein the rod is from 25 to 33 mm in length.8. The ...

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Номер записи: 68
09-08-2018 дата публикации

Viewing Optic with an Integrated Display System

Номер: US20180224244A1
Автор: Bollig Garrison, Carlson Andrew, Hamilton David M., Hamilton Samuel, Havens Calen, Klemm Ian, Lowry Will, Lyle Jason, Schultz Craig
Принадлежит:

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system. 1. A viewing optic comprising: (i) a main body with an optical system for generating images along a viewing optical axis of an outward scene and a beam combiner and (ii) a base coupled to the main body and having an active display for generating images and a reflective material for directing the generated images to the beam combiner for simultaneous overlaid viewing of the generated images and images of the outward scene in a first focal plane of the optical system.2. The viewing optic of claim 1 , wherein the beam combiner is located between an objective assembly of the main body and a first focal plane positioned and spaced along the viewing optical axis.3. The viewing optic of claim 1 , wherein the beam combiner is located approximately beneath an elevation knob of the viewing optic.4. The viewing optic of claim 1 , wherein the beam combiner is located closer to an objective assembly as compared to an ocular assembly of the viewing optic.5. The viewing optic of claim 1 , wherein the reflective material is a mirror that is angled.6. The viewing optic of claim 5 , wherein the mirror is angled from about 40° to about 50° relative to the emitted light of the display.7. The viewing optic of claim 5 , wherein the mirror is angled at about 45° relative to the emitted light of the display.8. The viewing optic of claim 1 , further comprising a lens system to collect light from the active display and having an inner lens cell and an outer lens cell.9. The viewing optic of claim 1 , wherein one end of the base attaches near a magnification adjustment ring of the main body and the other end of the base attaches near the objective assembly of the main ...

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Номер записи: 69
09-08-2018 дата публикации

Viewing Optic with an Integrated Display System

Номер: US20180224650A1
Автор: Bollig Garrison, Carlson Andrew, Hamilton David M., Hamilton Samuel, Havens Calen, Klemm Ian, Lowry Will, Lyle Jason, Schultz Craig
Принадлежит:

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system. 1. A viewing optic comprising: an optical system having a beam combiner between a first focal plane and an objective lens system , a focusing cell positioned between the beam combiner and the objective lens system , an active display for generating an image , wherein the image is superimposed on the first focal plane; and a controller coupled to the active display , the controller configured to selectively power one or more display elements to generate the image.2. The viewing optic of claim 1 , further comprising a rod to connect the focusing cell to a parallax adjustment knob.3. The viewing optic of claim 2 , wherein one end of the rod has a cam pin that interacts with a cam groove in the parallax adjustment knob.4. The viewing optic of claim 2 , wherein the rod is from 25 mm to 33 mm in length.5. The viewing optic of claim 2 , wherein the rod is 30 mm in length.6. The viewing optic of claim 1 , wherein the focusing cell is located from 25 mm to 33 mm closer to the objective assembly as compared to the location of a focusing cell in a traditional viewing optic.7. The viewing optic of claim 1 , further comprising a lens system to collect light from the active display.8. A viewing optic comprising:a main body having an objective system coupled to a first end that focuses a target image from an outward scene and an ocular system coupled to the second end, the main body, objective system and ocular system being configured to define at least a first focal plane;a beam combiner positioned between the objective assembly and the first focal plane;a focusing cell positioned between the beam combiner and the objective assembly;a rod coupling the ...

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Номер записи: 70
09-08-2018 дата публикации

Viewing Optic with an Integrated Display System

Номер: US20180224651A1
Автор: Bollig Garrison, Carlson Andrew, Hamilton David M., Hamilton Samuel, Havens Calen, Klemm Ian, Lowry Will, Lyle Jason, Schultz Craig
Принадлежит:

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system. 1. A viewing optic comprising:a main body having (i) an optical system having an objective lens system that focuses a target image from an outward scene to a first focal plane, an erector lens system that inverts the target image, a second focal plane, and (ii) a beam combiner; anda base that couples to a bottom portion of the main body having a cavity housing an active display for generating an image, a lens system that collects the light from the active display, and a reflective material that directs the image from the active display to the beam combiner where the image from the active display and the target image from the objective lens system are combined into the first focal plane and viewed simultaneously, the base further having a compartment for one or more power sources.2. The viewing optic of claim 1 , wherein the beam combiner is located between the objective lens system of the main body and the first focal plane.3. The viewing optic of claim 1 , further comprising a lens system to collect light from the active display.4. The viewing optic of claim 3 , wherein the lens system is a 5 lens system having 3 singlet lenses and 1 doublet lens.5. The viewing optic of further comprising a controller coupled to the active display claim 1 , the controller configured to selectively power one or more display elements to generate the image.6. The viewing optic of claim 1 , wherein the one or more power sources is one or more batteries.7. The viewing optic of claim 6 , wherein the one or more batteries is a CR123 battery.8. The viewing optic of claim 1 , wherein one end of the base attaches near a magnification adjustment ring of the main body and ...

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Номер записи: 71
09-08-2018 дата публикации

Viewing Optic with an Integrated Display System

Номер: US20180224652A1
Автор: Bollig Garrison, Carlson Andrew, Hamilton David M., Hamilton Samuel, Havens Calen, Klemm Ian, Lowry Will, Lyle Jason, Schultz Craig
Принадлежит:

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system. 1. A viewing optic comprising:a body having (i) a first optical system having an objective lens system that focuses a target image from an outward scene to a first focal plane, an erector lens system that inverts the target image, a second focal plane, an ocular lens system for viewing the target image, (ii) a beam combiner; (iii) a second optical system with an active display for generating an image, and a reflective material that directs the generated image from the active display to the beam combiner, wherein the image from the active display and the target image from the objective lens system are combined into the first focal plane and viewed simultaneously; and (iv) one or more adjustment mechanisms for performing one or more of the following: (a) moving the active display in relation to the reflective material, (b) moving the reflective material in relation to the active display, (c) moving the reflective material in relation to the beam combiner, (d) moving the beam combiner in relation to the reflective material, and (e) moving the erector lens system in relation to the beam combiner.2. The viewing optic of claim 1 , wherein the beam combiner is located between the first focal plane and the objective lens system.3. The viewing optic of claim 1 , wherein the adjustment mechanism for moving the active display in relation to the reflective material is a set screw or a wedge.4. The viewing optic of claim 1 , wherein the adjustment mechanism for moving the reflective material in relation to the active display is a set screw or a wedge.5. The viewing optic of claim 1 , wherein the second optical system is located in a base that couples to a ...

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Номер записи: 72
09-07-2020 дата публикации

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

Номер: US20200215306A1
Автор: Chou Tony M., Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 1. A system of devices for performing a medical procedure in a cerebral vessel of a patient , the system comprising:an access sheath, the access sheath having a proximal end with a hub, a distal end and a lumen extending therebetween; a flexible distal luminal portion having a proximal end, a distal end, and a lumen extending between the proximal and distal ends, and', 'a proximal elongate body configured to control movement of the first catheter and extending proximally from a point of attachment adjacent the proximal end of the flexible distal luminal portion, wherein an outer diameter of the proximal elongate body at the point of attachment is smaller than an outer diameter of the proximal end, wherein the proximal elongate body is; and, 'a first catheter comprising a flexible distal luminal portion having a proximal end, a distal end, and a lumen extending between the proximal end and the distal end, and', 'a proximal elongate body configured to control movement of the second catheter and extending proximally from a point of attachment adjacent the proximal end of the flexible distal luminal portion of the second catheter, wherein an outer diameter of the proximal elongate body at the point of attachment is smaller than an outer ...

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Номер записи: 73
18-07-2019 дата публикации

Viewing Optic with an Integrated Display System

Номер: US20190219812A1
Автор: Bollig Garrison, Carlson Andrew, Hamilton David M., Hamilton Samuel, Havens Calen, Klemm Ian, Lowry Will, Lyle Jason, Schultz Craig
Принадлежит:

The disclousre relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system. 1. A viewing optic comprising: (i) a main body with an optical system for generating an image of an outward scene along a viewing optical axis and a beam combiner and (ii) a base coupled to a bottom portion of the main body and having an active display for generating an image and a reflective material for directing the generated image to the beam combiner for simultaneous overlaid viewing of the generated image and image of the outward scene in a first focal plane of the optical system , wherein a bottom portion of the base has a rail for attachment to a firearm.2. The viewing optic of claim 1 , wherein the beam combiner is located between an objective assembly of the main body and a first focal plane positioned and spaced along the viewing optical axis.3. The viewing optic of claim 1 , wherein the beam combiner is located approximately beneath an elevation knob of the viewing optic.4. The viewing optic of claim 1 , wherein the beam combiner is located closer to an objective assembly as compared to an ocular assembly of the viewing optic.5. The viewing optic of claim 1 , wherein the reflective material is a mirror that is angled.6. The viewing optic of claim 5 , wherein the mirror is angled from about 40° to about 50° relative to the emitted light of the display.7. The viewing optic of claim 5 , wherein the mirror is angled at about 45° relative to the emitted light of the display.8. The viewing optic of claim 1 , further comprising a lens system to collect light from the active display and having an inner lens cell and an outer lens cell.9. The viewing optic of claim 1 , wherein the base is from 40% to 65% the length of the main body.10. A ...

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Номер записи: 74
25-08-2016 дата публикации

Suture Delivery Device

Номер: US20160242764A1
Автор: Garrison Michi E., Voss Laveille K.
Принадлежит:

A suture-based vessel closure device is configured to close a carotid artery puncture site. 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 hem ostasis to the access site. The sutures can be applied either prior to insertion of a procedural sheath through the arteriotomy or after removal of the sheath from the arteriotomy. 1. A device for closing an aperture in a wall of a blood vessel , the device comprising:a body having a distal tip sized and shaped to be inserted through an arteriotomy into an artery;at least one suture element held within the body; andat least one suture capture rod within the body, the suture capture rod being operatively associated with the suture element and arranged to pass the suture element through the vessel wall such that opposed portions of the suture element extend from the vessel wall and the suture element defines a knot between opposed portions thereof after the suture element has been passed through the vessel wall; and;a guidewire lumen located in the distal tip, wherein the guidewire lumen forms a first opening at a distalmost end of the distal tip and a second opening located between the distalmost end and a vessel wall locator device that positions against a blood vessel when the device is in use.2. A device as in claim 1 , further comprising a valve located within the guidewire lumen claim 1 , wherein the body permits passage of the guidewire into the lumen through the second opening claim 1 , and prevents blood flow out of the second opening when a guidewire is positioned within the guidewire lumen.3. A device as in claim 1 , wherein the distal tip is flexible to allow the distal tip to conform to a curvature of the guidewire as the distal tip is advanced into the artery.4. A device as in claim 3 , wherein a flexibility of the distal tip varies over the length of the distal tip ...

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Номер записи: 75
01-08-2019 дата публикации

Methods and systems for establishing retrograde carotid arterial blood flow

Номер: US20190231962A1
Автор: Alan Schaer, Enrique Criado, Gregory M. Hyde, Michi E. Garrison, Richard Renati, Tony M. Chou
Принадлежит: Silk Road Medical Inc

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.

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Номер записи: 76
23-07-2020 дата публикации

VIEWING OPTIC WITH ROUND COUNTER SYSTEM

Номер: US20200232762A1
Автор: Bollig Garrison, Carlson Andy, Cody Tom, Hamilton Sam, Havens Calen, Klemm Ian, Laufenberg Nicholas, Lewis Alexander, Lowry William, Schultz Craig
Принадлежит:

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a display system for a viewing optic. In one embodiment, the disclosure relates to a viewing optic having a display system with multiple active displays for generating images that are projected into a first focal plane of an optical system. In one embodiment, the disclosure relates to a viewing optic with an active display and a round counter system. 1. A system comprising: a viewing optic having an optical system configured to focus a target image from an outward scene to a first focal plane and an active display configured to generate a digital image , and a round counter configured to track ammunition status and to communicate ammunition status to the active display; wherein the ammunition status is projected into the first focal plane of the viewing optic.2. The system of claim 1 , wherein the round counter comprises a magazine follower with one or more magnets.3. The system of claim 2 , wherein the system further comprises a firearm.4. The system of claim 2 , wherein the firearm comprises one or more magnetic sensors.5. The system of claim 4 , wherein the one or more magnetic sensors are Hall-effect sensors configured to detect the magnetic field from the one or more magnets in the magazine follower.6. The system of claim 5 , wherein the one or more Hall-effect sensors are in a magazine well.7. The system of claim 5 , wherein the one or more Hall-effect sensors are on a receiver of the firearm.8. The system of claim 5 , further comprising a processor to correlate position of the magnetic field with ammunition status.9. The system of claim 5 , wherein the ammunition status is the number of rounds in a magazine.10. A system comprising: a viewing optic having: (a) a main tube; (b) an objective system coupled to a first end of the main tube that focuses a target image from an outward scene; (c) an ocular system coupled to the second end of the main tube claim 5 , the main tube ...

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Номер записи: 77
23-09-2021 дата публикации

Systems and methods for aspirating from a body lumen

Номер: US20210290257A1
Автор: Michi E. Garrison, Sieu T. Duong
Принадлежит: Silk Road Medical Inc

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.

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Номер записи: 78
06-08-2020 дата публикации

Biologically modified vascular grafts for improved bypass surgery outcomes

Номер: US20200246127A1
Автор: C. Garrison Fathman, Jonathan Rothbard, Paul Leo McGrane
Принадлежит: Leland Stanford Junior University, Lumen Therapeutics LLC

The present disclosure provides a method for creating a Biologically Modified Vein Graft with improved survival by pretreating the vein to be used as a vascular graft with compositions comprising oligo-L-arginine, or salts thereof, and an organic acid or a salt thereof. The disclosure further provides methods of improving vascular vein graft survival comprising pretreating the graft for a set period of time with a set concentration of oligo-L-arginines in a buffer comprising either the organic acid or the salt thereof and flushing the BMVG before implantation with the same buffer absent the arginine oligomer. This treatment may prevent vein graft disease in the transplanted vessel.

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Номер записи: 79
22-09-2016 дата публикации

Methods And Systems For Establishing Retrograde Carotid Arterial Blood Flow

Номер: US20160271316A1
Автор: Chou Tony M., Criado Enrique, Garrison Michi E., Hyde Gregory M., Renati Richard, SCHAER Alan
Принадлежит:

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. 1. A method for treating a carotid artery , comprising:forming an access location in an entry artery of a patient;positioning an arterial access sheath into the entry artery and to a common carotid artery, wherein the access sheath includes an expandable element;expanding the expandable element so that the expandable element blocks blood flow through the common carotid artery past the sheath and establish retrograde blood flow through the internal carotid artery and into the sheath, wherein blood flows into a shunt of the sheath while the common carotid artery remains blocked;actively assisting blood flow from the common carotid artery into the sheath and into the shunt;flowing the blood from the shunt to a return location.2. A method as in claim 1 , wherein the entry artery is the femoral artery.3. A method as in claim 1 , wherein the entry artery is the common carotid artery.4. A method as in claim 3 , wherein forming an axis location in an entry artery of the patient comprises forming a penetration in a wall of a common carotid artery via a transcervical incision claim 3 , the penetration being located at distance of around 5 cm to 7 cm below a bifurcation location where the patient's common carotid artery bifurcates into an internal carotid artery and external carotid artery;5. A method as in claim 4 , wherein positioning ...

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Номер записи: 80
20-09-2018 дата публикации

Transportation refrigeration system comprising a refrigeration unit and a diesel engine

Номер: US20180266297A1
Автор: Benjamin Edward FERGUSON, Garrison S. MOSELEY
Принадлежит: Carrier Corp

A transport refrigeration system is provided including a refrigeration unit and a diesel engine powering the refrigeration unit. The diesel engine has an exhaust system for discharging engine exhaust from the diesel engine. An exhaust treatment unit is disposed in the diesel engine exhaust system and includes a diesel oxidation catalyst and a diesel particulate filter. An air control valve is configured to control a quantity of air provided to the diesel engine from an air supply fluidly coupled to the diesel engine. A controller is operably coupled to the air control valve. After initiating regeneration of the diesel particulate filter, the controller is configured to operate the system in either a primary regeneration mode or a secondary regeneration in response to a condition monitored within the exhaust treatment unit.

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Номер записи: 81
28-09-2017 дата публикации

Methods And Systems For Treatment Of Acute Ischemic Stroke

Номер: US20170274180A1
Автор: Chou Tony M., Garrison Michi E.
Принадлежит:

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. 118.-. (canceled)19. An aspiration catheter system comprising:an access sheath comprising a tubular sheath body with a central lumen having an inner diameter, a proximal end and a distal opening,and a connector operably connected with the proximal end of the sheath body and having an aspiration line that connects to an aspiration source via connector; anda catheter comprising a proximal region, a distal portion comprising a distal opening and extending from the proximal region in a distal direction, and a proximal tether element connecting the distal portion with the connector of the sheath,wherein an aspiration lumen running through the distal portion of the catheter has an inner diameter that is between about 0.035″ and about 0.095″ and wherein the inner diameter of the central lumen of the sheath body is between about 0.065″ and about 0.120″,wherein the proximal region of the catheter is configured to slide within the central lumen of the sheath body to change the relative position of the proximal region within the central lumen and provide for at least a portion of the distal portion to extend outward from the distal opening of the sheath body at appropriate configurations of the proximal region,wherein an effective seal is formed by a tight fit between the proximal ...

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Номер записи: 82
29-08-2019 дата публикации

METHODS AND SYSTEMS FOR ESTABLISHING RETROGRADE CAROTID ARTERIAL BLOOD FLOW

Номер: US20190262530A1
Автор: Chou Tony M., Criado Enrique, Garrison Michi E., Hyde Gregory M., Renati Richard, SCHAER Alan
Принадлежит:

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. 1. A method of treating a lesion in a carotid artery of a patient having an arterial blood system and a venous blood system , comprising:positioning an arterial access sheath into a common carotid artery via an insertion site in the patient's neck wherein the arterial access sheath is coupled to a hemostasis device located a distance from the insertion site such that radiation exposure to the hemostasis device is reduced relative to radiation exposure at the insertion site when fluoroscopy is being performed at the insertion site;establishing retrograde blood flow through the common carotid artery such that blood flows into a lumen of the arterial access device;shunting blood from the common carotid artery to a femoral vein of the patient via the arterial access sheath; andtreating the lesion by deploying a stent on the lesion.2. The method of claim 1 , further comprising making an incision at the insertion site to expose a region of the common carotid artery.3. The method of claim 1 , further comprising deploying a filter in the arterial blood system at a location distal of the lesion.4. The method of claim 1 , wherein the arterial access device comprises a working length of 5 cm to 15 cm.5. The method of claim 2 , further comprising forming a penetration in a wall of a common carotid artery via the incision claim 2 , the ...

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Номер записи: 83
18-12-2014 дата публикации

Methods and Systems for Establishing Retrograde Carotid Arterial Blood Flow

Номер: US20140371653A1
Автор: Chou Tony M., Criado Enrique, Garrison Michi E., Hyde Gregory M., Renati Richard, SCHAER Alan
Принадлежит:

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. 1. A method for accessing and treating a carotid artery , comprising:percutaneously forming a transcervical access site in a neck of a patient to form an entryway through a wall of a common carotid artery;positioning an arterial access sheath through the entryway, wherein the arterial access sheath has a predetermined working length configured to insert into the common carotid artery;inserting no more than the working length of the arterial access sheath into the common carotid artery; andaspirating blood into the sheath from the internal carotid artery.2. A method as in claim 1 , further comprising placing a distal embolic filter through the sheath and positioning the filter distal to a treatment site in an artery.3. A method as in claim 2 , further comprising:ceasing aspiration of blood after the filter is positioned distal to the treatment site;performing a treatment at the treatment site;removing the filter while aspirating blood into the sheath.4. A method as in claim 1 , wherein the access site is located at distance of 5 cm to 7 cm below a bifurcation location where the patient's common carotid artery bifurcates into the internal carotid artery and external carotid artery.5. A method as in claim 4 , wherein the working length of the arterial access sheath is 5 cm to 15 cm.6. A method as in claim 1 , wherein aspirating ...

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Номер записи: 84
05-09-2019 дата публикации

SYSTEMS AND METHODS FOR TREATING A CAROTID ARTERY

Номер: US20190269538A1
Автор: Chou Tony M., Garrison Michi E., Hyde Gregory M., Renati Richard, SCHAER Alan
Принадлежит:

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. 110-. (canceled)11. A method for treating an artery , comprising:transcervically inserting a sheath into an artery through a penetration in a wall of the artery; (a) an elongated inner member having a distal region on which the stent may be mounted, the elongated inner member further having a protrusion on a proximal portion of the elongated inner member;', '(b) an elongated stent containment sheath coaxially positioned over the inner member, the stent containment sheath formed by an annular side wall, wherein an opening is formed through a proximal portion of the annular side wall of the stent containment sheath, and wherein the protrusion of the inner member extends outward through the opening such that the protrusion of the inner member may be accessed by a user at a location outside the stent containment sheath;, 'inserting an interventional catheter into the artery via the sheath, wherein the interventional catheter is adapted to deploy a stent and wherein the interventional catheter includes a first hemostasis valvetreating an artery using the interventional catheter.12. A method as in claim 11 , wherein the sheath is adapted to receive blood flow from the caroid artery claim 11 , and wherein the sheath is coupled to a flow control assembly coupled to a 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 claim 11 , wherein the flow control assembly includes one or more components that interact with the blood flow through the shunt.13. A method as in claim 11 , wherein the ...

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Номер записи: 85
05-10-2017 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

Номер: US20170281204A1
Автор: Chou Tony M., Garrison Michi E.
Принадлежит:

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. 1. A suction catheter system comprising:a guide catheter comprising a tubular shaft with a central lumen having an inner diameter, a proximal end and a distal opening, and a proximal section operably connected with the proximal end of the tubular shaft and having fittings that connect to a suction device; anda suction extension comprising a proximal portion, a suction tip comprising a distal opening and extending from the proximal portion in a distal direction, and a control structure connecting the proximal portion with the proximal section of the guide catheter, the suction tip having a distal inner diameter that is between about 0.035″ and about 0.095″ and the central lumen inner diameter is between about 0.065″ and about 0.120″, wherein the proximal portion is configured to slide within the central lumen of the tubular shaft to change the relative position of the proximal portion within the central lumen and provide for at least a portion of the narrow diameter suction extension to extend outward from the distal opening of the tubular shaft at appropriate configurations of the proximal portion, wherein an effective seal is formed by a tight fit between the proximal portion and the central lumen of the guide catheter and wherein the suction extension has a length from ...

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Номер записи: 86
13-10-2016 дата публикации

Methods and systems for establishing retrograde carotid arterial blood flow

Номер: US20160296690A1
Автор: Michi E. Garrison, Sieu T. Duong, Stewart M. Kume
Принадлежит: Silk Road Medical Inc

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.

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Номер записи: 87
11-10-2018 дата публикации

Methods And Systems For Establishing Retrograde Carotid Arterial Blood Flow

Номер: US20180289884A1
Автор: Chou Tony M., Criado Enrique, Garrison Michi E., Hyde Gregory M., Renati Richard, SCHAER Alan
Принадлежит:

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. 1. A method for accessing and treating a carotid artery , comprising:inserting an arterial access sheath into a patient's neck and through a wall of a common carotid artery at an arterial access site, wherein the arterial access sheath has a structural configuration that limits a depth of insertion of a distal portion of the arterial access sheath into the common carotid artery;positioning a filter in an internal carotid artery distal of a location of treatment;inserting an interventional device into the common carotid artery via the arterial access sheath.2. The method of claim 1 , wherein structural configuration of the arterial access sheath limits the distal portion the from being inserted into the common carotid artery beyond a length such that the distal portion would contact a bifurcation location where the patient's common carotid artery bifurcates into an internal carotid artery and external carotid artery.357. The method of claim 1 , wherein the arterial access site is located at distance of cm to cm below the bifurcation location where the patient's common carotid artery bifurcates into an internal carotid artery and external carotid artery.4. The method of claim 1 , wherein structural configuration of the arterial access sheath limits the distal portion the from being inserted into the common carotid artery beyond ...

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Номер записи: 88
10-09-2020 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

Номер: US20200282127A1
Автор: Chou Tony M., Garrison Michi E., Hyde Gregory M.
Принадлежит:

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. 1. A method of treating a patient , the method comprising:forming an opening through a wall of a common carotid artery;inserting through the opening an arterial access sheath system configured to be inserted directly into the common carotid artery;providing access to a cerebral artery via an internal lumen of the arterial access sheath;delivering a perfusion catheter through the arterial access sheath, the perfusion catheter adapted to deliver a perfusion solution to a target location in the brain of the patient; andperfusing hypothermic perfusion solution through the perfusion catheter to cool brain tissue in the target location in the brain.2. The method of claim 1 , wherein the perfusion catheter is delivered to a site distal a thrombotic occlusion.3. The method of claim 1 , wherein the perfusion solution comprises autologous arterial blood claim 1 , an oxygenated solution claim 1 , or a neuroprotective agent.4. The method of claim 1 , further comprising treating a thrombotic blockage in the cerebral artery of the brain.5. The method of claim 4 , wherein treating the thrombotic blockage comprises performing aspiration thrombectomy or mechanical thrombectomy in the cerebral artery near the target location.6. The method of claim 4 , wherein treating the thrombotic blockage comprises inserting a treatment device through the arterial access sheath and positioning at least a portion of the treatment device in the cerebral artery for the purpose of at least removing or disrupting the thrombotic blockage.7. The method of claim 6 , wherein removing the thrombotic blockage ...

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Номер записи: 89
10-09-2020 дата публикации

VIEWING OPTIC WITH AN INTEGRATED DISPLAY SYSTEM

Номер: US20200285039A1
Автор: Bollig Garrison, Carlson Andrew, Hamilton David M., Hamilton Samuel, Havens Calen, Klemm Ian, Lowry Will, Lyle Jason, Schultz Craig
Принадлежит:

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system. 1. A viewing optic comprising:an objective lens system configured to focus a target image from an outward scene to a first focal plane having a reticle, an erector lens system that inverts the target image, a second focal plane, an ocular lens system for viewing the target image, (ii) a beam combiner; (iii) an active display configured to generate an image, (iv) a collector lens system configured to collect light from the active display and having an inner lens cell, an outer lens cell, and a spring located between the inner and outer lens cells, wherein the collector lens system is located between the active display and a reflective material, the reflective material configured to direct the generated image from the active display to the beam combiner, wherein the image from the active display and the target image from the objective lens system are combined into the first focal plane and viewed simultaneously.2. The viewing optic of further comprising a focusing cell located between the beam combiner and the objective lens system.3. The viewing optic of claim 1 , wherein the active display is selected from the group consisting of: a transmissive active matrix LCD display (AMLCD) claim 1 , an organic light-emitting diode (OLED) display claim 1 , a Light-Emitting Diode (LED) display claim 1 , an e-ink display claim 1 , a plasma display claim 1 , a segment display claim 1 , an electroluminescent display claim 1 , a surface-conduction electron-emitter display claim 1 , and a quantum dot display.4. The viewing optic of claim 1 , wherein the image generated by the active display is selected from the group consisting of: text claim 1 , alpha-numeric ...

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Номер записи: 90
03-11-2016 дата публикации

SYSTEMS AND METHODS FOR TRANSCATHETER AORTIC VALVE TREATMENT

Номер: US20160317288A1
Автор: Garrison Michi E., Macdonald Sumaira, Rogers Erica J., Wallace Michael P.
Принадлежит:

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. 1. A system for transcatheter aortic valve treatment , comprising:an arterial access sheath adapted to be introduced into an access site at the left or right common carotid artery, or left or right subclavian artery,wherein the arterial access sheath has a first lumen sized and shaped to receive a valve delivery system configured to deliver a prosthetic valve into a heart or aorta through the arterial access sheath, the first lumen having a first opening at a proximal end of the arterial access sheath and a distal opening at a distal most end of the arterial access sheath, wherein the proximal end of the first lumen has a proximal connector with a hemostasis valve and a Y-arm, wherein the hemostasis valve is sized to fit therethrough the valve delivery system;wherein the arterial access sheath further also has a perfusion lumen with a proximal end and a distal opening and wherein the perfusion lumen has a length such that the distal opening of the perfusion lumen can be positioned in and perfuse a distal carotid artery when in use, and wherein the proximal end of the perfusion lumen has a proximal connector; anda shunt that defines a shunt lumen that fluidly connects a source of perfusion fluid to the perfusion lumen.2. A system as in claim 1 , wherein the distal opening of the perfusion lumen has a radiopaque marker.3. A system as in claim 1 , wherein the shunt has a first end removably connectable to a Y-arm of the first lumen of the arterial access sheath claim 1 , and a second end that removably connects to a proximal end of the perfusion lumen.4. A system as in claim 1 , wherein the shunt has a first end removably connectable to an ...

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Номер записи: 91
24-09-2020 дата публикации

METHODS AND SYSTEMS FOR ESTABLISHING RETROGRADE CAROTID ARTERIAL BLOOD FLOW

Номер: US20200297912A1
Автор: Chou Tony M., Criado Enrique, Garrison Michi E., Hyde Gregory M., Renati Richard, SCHAER Alan
Принадлежит:

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. 1. A method of treating a lesion in a target artery of a patient having an arterial blood system and a venous blood system , comprising:forming a catheter insertion site near a region of a common carotid artery in a patient's neck; a distal section having a single lumen;', 'a proximal extension having a single lumen;', 'a connector coupling the single lumen of the distal section to the single lumen of the proximal extension, the connector configured to be positioned adjacent the insertion site; and', 'a proximal hemostasis device coupled to a proximal end of the proximal extension that is configured to inhibit blood flow from the proximal extension, wherein the proximal extension has a length so that the proximal hemostasis device is located a distance away from the connector positioned adjacent the insertion site;, "positioning an arterial access sheath into the common carotid artery via the insertion site in the patient's neck, wherein the arterial access sheath comprises:"}inserting a treatment device through the proximal hemostasis device on the proximal extension and through the distal section of the arterial access sheath positioned in the common carotid artery; andtreating the lesion with the treatment device.2. The method of claim 1 , further comprising performing fluoroscopy while inserting the treatment device or ...

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Номер записи: 92
02-11-2017 дата публикации

Systems And Methods For Treating A Carotid Artery

Номер: US20170312491A1
Автор: Garrison Michi E., Hyde Gregory M., Renati Richard J., Ryan Ari, Schaer Alan K.
Принадлежит:

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. 116-. (canceled)17. A method of accessing and treating a carotid artery , the method comprising: the hemostasis valve assembly comprising:', '(a) a housing defining an internal chamber that communicates with the internal lumen of the distal sheath, wherein the internal chamber is adapted to contain a liquid or gel;', '(b) a first seal member that seals the internal chamber from the internal lumen of the distal sheath, the first seal member having a central passageway that opens for passage of an interventional device into the internal lumen of the distal sheath from the internal chamber, wherein the central passageway is closed in a default state to prevent passage of fluid across the first seal member;', '(c) wherein, when the internal chamber is filled with liquid or gel, the liquid or gel prevents air from entering the internal lumen of the distal sheath via the hemostasis valve assembly when the internal lumen of the distal sheath is aspirated, via the aspiration port;', 'a second seal member, wherein the second seal member is positioned on a proximal end of the internal chamber and the first seal member is positioned on a distal end of the internal chamber so that the first seal member and second seal member define the internal chamber therebetween and can enclose liquid or gel within the internal chamber, and wherein the first seal member and second seal member are aligned along a common, straight axis;, 'inserting an arterial access device into an artery, wherein the arterial access device comprises a distal sheath adapted to enter the common carotid artery, an ...

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Номер записи: 93
19-11-2015 дата публикации

VESSEL ACCESS AND CLOSURE ASSIST SYSTEM AND METHOD

Номер: US20150327843A1
Автор: Garrison Michi E.
Принадлежит:

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.

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Номер записи: 94
24-10-2019 дата публикации

Viewing Optic with Direct Active Reticle Targeting

Номер: US20190324260A1
Автор: Bollig Garrison, Carlson Andrew, Hamilton David M., Hamilton Samuel, Havens Calen, Klemm Ian, Lowry Will, Schultz Craig
Принадлежит:

The disclosure relates to a viewing optic. In one embodiment, the disclosure relates to a viewing optic having an integrated display system. In one embodiment, the disclosure relates to a viewing optic having an integrated display system for generating images that are projected into the first focal plane of an optical system. 1. A viewing optic comprising: (i) a main body with an optical system for generating an image of an outward scene along a viewing optical axis and a beam combiner and (ii) a base coupled to a bottom portion of the main body having an active display for generating an image and a reflective material for directing the generated image to the beam combiner for simultaneous overlaid viewing of the generated image and image of the outward scene in a first focal plane of the optical system , a sensor for detecting the presence of a user and a processor in communication with the sensor and capable of controlling power state of the viewing optic.2. The viewing optic of claim 1 , wherein the beam combiner is located between an objective assembly of the main body and a first focal plane positioned and spaced along the viewing optical axis.3. The viewing optic of claim 1 , wherein the beam combiner is located approximately beneath an elevation knob of the viewing optic.4. The viewing optic of claim 1 , wherein the beam combiner is located closer to an objective assembly as compared to an ocular assembly of the viewing optic.5. The viewing optic of claim 1 , wherein the reflective material is a mirror that is angled.6. The viewing optic of claim 5 , wherein the mirror is angled from about 40° to about 50° relative to the emitted light of the display.7. The viewing optic of claim 5 , wherein the mirror is angled at about 45° relative to the emitted light of the display.8. The viewing optic of claim 1 , further comprising a lens system to collect light from the active display and having an inner lens cell and an outer lens cell.9. The viewing optic of claim 1 ...

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Номер записи: 95
29-10-2020 дата публикации

Methods and systems for treatment of acute ischemic stroke

Номер: US20200337716A1
Автор: Michi E. Garrison, Tony M. Chou
Принадлежит: Route 92 Medical Inc

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.

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Номер записи: 96
29-10-2020 дата публикации

Devices for manipulating blood vessel walls and associated systems and methods of use

Номер: US20200337726A1
Автор: Benjamin J. Clark, David Batten, Fletcher T. WILSON, Kent Deli, Michi Garrison, William R. George
Принадлежит: Intervene Inc

Devices for intravascular valve creation and associated systems and methods are disclosed herein.

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Номер записи: 97
14-12-2017 дата публикации

Systems And Methods For Treating A Carotid Artery

Номер: US20170354523A1
Автор: Chou Tony M., Garrison Michi E., Hyde Gregory M., Renati Richard, SCHAER Alan
Принадлежит:

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. 110-. (canceled)11. A method for treating an artery , comprising:inserting an arterial access device into an artery, wherein the access device includes a distal sheath adapted to be transcervically introduced into the artery through a penetration in a wall of the artery; (a) an elongated inner member having a distal region on which the stent may be mounted, the elongated inner member further having a protrusion on a proximal portion of the elongated inner member;', '(b) an elongated stent containment sheath coaxially positioned over the inner member, the stent containment sheath formed by an annular side wall, wherein an opening is formed through a proximal portion of the annular side wall of the stent containment sheath, and wherein the protrusion of the inner member extends outward through the opening such that the protrusion of the inner member may be accessed by a user at a location outside the stent containment sheath;, 'inserting an interventional catheter adapted for transcervical insertion into the artery via the arterial access device, wherein the interventional catheter is adapted to deploy a stent and wherein the interventional catheter includes a first hemostasis valve positioned on a proximal end of the arterial access device, and wherein the interventional catheter is formed oftreating an artery using the interventional catheter.12. A method as in claim 11 , wherein the arterial access device is adapted to receive blood flow from the caroid artery claim 11 , and further comprising:a flow control assembly coupled to the shunt and adapted to regulate blood ...

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Номер записи: 98
14-12-2017 дата публикации

Methods and Devices for Transcarotid Access

Номер: US20170354803A1
Автор: Garrison Michi E., Kume Stewart M., Mendoza Herbert, Moreno Marlon, Wallace Michael P.
Принадлежит:

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. 122.-. (canceled)23. A method for introducing an interventional device into a common carotid artery , the method comprising:introducing an arterial access sheath and a first dilator into a common carotid artery via a carotid access needle puncture site while the first dilator is positioned within the arterial access sheath, and wherein:a) the arterial access sheath includes a sheath body sized and shaped to be introduced into the common carotid artery via the carotid artery access site, the sheath body defining an internal delivery lumen; andb) the first dilator has a tapered distal tip sized and shaped to dilate the needle puncture site to a diameter sufficient for insertion of the arterial access sheath into the artery, the first dilator having a first internal guidewire lumen, wherein at least a portion of the first dilator has a first bending stiffness;removing the first dilator from the arterial access sheath; andintroducing an elongated second dilator into the internal delivery lumen while the sheath body is positioned within the common carotid artery, the second dilator having a ...

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Номер записи: 99
22-12-2016 дата публикации

RAPID ASPIRATION THROMBECTOMY SYSTEM AND METHOD

Номер: US20160367272A1
Автор: Chou Tony M., Garrison Michi E., Wilson Scott D.
Принадлежит:

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. 1. A method of performing a medical procedure in a cerebral vessel of a patient , the method comprising: [ a flexible distal luminal portion having a proximal end, a proximal end region, a distal end, and a lumen extending between the proximal end and the distal end; and', 'a proximal spine extending proximally from the proximal end region, wherein the proximal spine is less flexible than the distal luminal portion and is configured to control movement of the catheter; and, 'a catheter comprising, a flexible elongate body having a proximal end region, a distal tip, a single lumen that communicates with a distal opening in fluid communication with the vessel, and an outer diameter, wherein the outer diameter is sized to be received within the lumen of the luminal portion of the catheter, and wherein the single lumen extends longitudinally through the elongate body to the distal opening; and', 'a proximal portion extending from the proximal end region of the elongate body and extending proximally outside of the body of the patient, the proximal portion having a single lumen that communicates with the single lumen of the flexible elongate body;, 'a catheter advancement element comprising], 'inserting a catheter system into a vessel, the ...

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Номер записи: 100
05-11-2020 дата публикации

METHODS AND SYSTEMS FOR TREATMENT OF ACUTE ISCHEMIC STROKE

Номер: US20200345981A1
Автор: Chou Tony M., Garrison Michi E.
Принадлежит:

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. 1. An aspiration catheter system comprising:an access sheath comprising a tubular sheath body with a central lumen having an inner diameter, a proximal end and a distal opening,and a connector operably connected with the sheath body and attachable to an aspiration line that connects to an aspiration source via the connector; anda catheter comprising a distal portion and a proximal tether extending proximally from a point of attachment between the proximal tether and the distal portion, wherein the distal portion has a single inner lumen, and wherein the catheter is configured to extend from a femoral access site to a carotid artery,wherein the catheter is configured to slide within the central lumen of the sheath body to change the relative position of the catheter within the central lumen and provide for at least a portion of the distal portion to extend outward from the distal opening of the sheath body such that an overlap region is formed between the catheter and the access sheath,wherein an aspiration lumen is collectively formed by the single inner lumen of the catheter and the central lumen of the access sheath, andwherein a proximal end region of the catheter comprises an inclined surface flaring outward in a proximal direction, wherein the inclined surface is formed ...

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Номер записи: 101
21-12-2017 дата публикации

Interventional Catheter System And Methods

Номер: US20170361072A1
Автор: Alan K. Schaer, Gregory M. Hyde, Michi E. Garrison, Richard J. Renati, Tony M. Chou
Принадлежит: Silk Road Medical Inc

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.

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Номер записи: 102