Patents Assigned to Silk Road Medical, Inc.
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Patent number: 10188399Abstract: One disclosed embodiment comprises a method for treating lesions in the carotid artery of a mammalian body. The method comprises transcervical access and blocking of blood flow through the common carotid artery (with or without blocking of blood flow through the external carotid artery), shunting blood from the internal carotid artery and treating the lesion in the carotid artery.Type: GrantFiled: May 31, 2016Date of Patent: January 29, 2019Assignee: Silk Road Medical, Inc.Inventor: David W. Chang
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Patent number: 10182801Abstract: A vessel access and closure assist system is used for accessing a vessel to perform a vascular intervention. The system facilitates the delivery of a vessel closure device onto a blood vessel for closing an opening in the wall of the blood vessel. The vessel access and closure assist system includes a procedural introducer sheath that directly couples to a vessel closure device delivery sheath such that the procedural introducer sheath does not have to be exchanged with the vessel closure device delivery sheath.Type: GrantFiled: May 12, 2015Date of Patent: January 22, 2019Assignee: Silk Road Medical, Inc.Inventor: Michi E. Garrison
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Patent number: 10159479Abstract: A device is configured for closing an aperture in a wall of a blood vessel. An embodiment of the device includes a body and at least one suture element held within the body. A suture capture rod is positioned within the body and is operatively associated with the suture element and arranged to pass the suture element through a vessel wall such that opposed portions of the suture element extend from the vessel wall. A removable guidewire segment is removably attached to a distal end of the body.Type: GrantFiled: August 7, 2013Date of Patent: December 25, 2018Assignee: Silk Road Medical, Inc.Inventors: Ronald Hentges, Michi E. Garrison
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Patent number: 10085864Abstract: Systems and methods are adapted for treating the carotid artery. The systems include interventional catheters and blood vessel access devices that are adapted for transcervical insertion into the carotid artery. Embodiments of the systems and methods can be used in combination with embolic protection systems including blood flow reversal mechanisms, arterial filters, and arterial occlusion devices.Type: GrantFiled: May 22, 2017Date of Patent: October 2, 2018Assignee: Silk Road Medical, Inc.Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard Renati, Alan Schaer
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Patent number: 10039906Abstract: Disclosed is an arterial access sheath for introducing an interventional device into an artery. The arterial access sheath includes an elongated body sized and shaped to be transcervically introduced into a common carotid artery at an access location in the neck and an internal lumen in the elongated body having a proximal opening in a proximal region of the elongated body and a distal opening in a distal region of the elongated body. The internal lumen provides a passageway for introducing an interventional device into the common carotid artery when the elongated body is positioned in the common carotid artery. The elongated body has a proximal section and a distalmost section that is more flexible than the proximal section. A ratio of an entire length of the distalmost section to an overall length of the sheath body is one tenth to one half the overall length of the sheath body.Type: GrantFiled: May 26, 2017Date of Patent: August 7, 2018Assignee: Silk Road Medical, Inc.Inventors: Stewart M. Kume, Michi E. Garrison, Michael P. Wallace, Herbert Mendoza, Marlon Moreno
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Patent number: 9861783Abstract: 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.Type: GrantFiled: October 20, 2016Date of Patent: January 9, 2018Assignee: Silk Road Medical, Inc.Inventors: Michi E. Garrison, Scott D. Wilson
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Patent number: 9833555Abstract: Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.Type: GrantFiled: September 2, 2014Date of Patent: December 5, 2017Assignee: Silk Road Medical, Inc.Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
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Patent number: 9789242Abstract: Interventional procedures on the carotid arteries are performed through a transcervical access while retrograde blood flow is established from the internal carotid artery to a venous or external location. A system for use in accessing and treating a carotid artery includes an arterial access device, a shunt fluidly connected to the arterial access device, and a flow control assembly coupled to the shunt and adapted to regulate blood flow through the shunt between at least a first blood flow state and at least a second blood flow state. The flow control assembly includes one or more components that interact with the blood flow through the shunt.Type: GrantFiled: May 31, 2016Date of Patent: October 17, 2017Assignee: Silk Road Medical, Inc.Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
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Patent number: 9693789Abstract: An aspiration device can be used to aspirate an obstruction from a blood vessel. The aspiration device is configured to allow controlled one-handed aspiration yet maintain a syringe plunger feel of vacuum. The aspiration device also allows one-handed injection to empty the device when needed. Furthermore, mechanisms enable one-handed locking of a plunger position of the device to maintain vacuum when the user releases the device.Type: GrantFiled: March 21, 2014Date of Patent: July 4, 2017Assignee: Silk Road Medical, Inc.Inventors: Michi E. Garrison, Sieu Duong
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Patent number: 9669183Abstract: Described herein are methods and devices for selectively applying fluids (particularly anesthetics) to a target tissue from within a blood vessel while minimizing the amount of fluid applied to non-target tissue. The injection catheters described herein may include an elongate body, a directional injector, and one or more holdfasts for securing the catheter before extending the injector. The methods of selectively applying anesthetic to a target structure generally include the steps of inserting an injection catheter into a body vessel, positioning the injection catheter within the body vessel near the target structure, anchoring the injection catheter before extending a directional injector from the injection catheter, and applying anesthetic from the injection catheter to the target structure.Type: GrantFiled: March 28, 2016Date of Patent: June 6, 2017Assignee: Silk Road Medical, Inc.Inventor: David W. Chang
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Patent number: 9669191Abstract: An interventional catheter is adapted for treating a blood vessel. In an embodiment, the catheter includes an elongate shaft sized for insertion in a blood vessel and a stent positioned on a distal region of the elongate shaft. An expandable dilation member is coupled to a distal region of the elongate shaft. The expandable dilation member is adapted to expand outward. A stent containment member is positioned over the elongate shaft and the stent to contain the stent in a collapsed state.Type: GrantFiled: February 5, 2009Date of Patent: June 6, 2017Assignee: Silk Road Medical, Inc.Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard Renati, Alan Schaer
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Patent number: 9662480Abstract: Disclosed is an arterial access sheath for introducing an interventional device into an artery. The arterial access sheath includes an elongated body sized and shaped to be transcervically introduced into a common carotid artery at an access location in the neck and an internal lumen in the elongated body having a proximal opening in a proximal region of the elongated body and a distal opening in a distal region of the elongated body. The internal lumen provides a passageway for introducing an interventional device into the common carotid artery when the elongated body is positioned in the common carotid artery. The elongated body has a proximal section and a distalmost section that is more flexible than the proximal section. A ratio of an entire length of the distalmost section to an overall length of the sheath body is one tenth to one half the overall length of the sheath body.Type: GrantFiled: July 14, 2016Date of Patent: May 30, 2017Assignee: Silk Road Medical, Inc.Inventors: Stewart M. Kume, Michi E. Garrison, Michael P. Wallace, Herbert Mendoza, Marlon Moreno
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Patent number: 9662118Abstract: One disclosed embodiment comprises a method for treating lesions in the carotid artery of a mammalian body. The method comprises transcervical access and blocking of blood flow through the common carotid artery (with or without blocking of blood flow through the external carotid artery), shunting blood from the internal carotid artery and treating the lesion in the carotid artery.Type: GrantFiled: October 7, 2014Date of Patent: May 30, 2017Assignee: Silk Road Medical, Inc.Inventor: David W. Chang
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Patent number: 9655755Abstract: Systems and methods are adapted for treating the carotid artery. The systems include interventional catheters and blood vessel access devices that are adapted for transcervical insertion into the carotid artery. Embodiments of the systems and methods can be used in combination with embolic protection systems including blood flow reversal mechanisms, arterial filters, and arterial occlusion devices.Type: GrantFiled: February 16, 2016Date of Patent: May 23, 2017Assignee: Silk Road Medical, Inc.Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard Renati, Alan Schaer
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Patent number: 9623228Abstract: Systems and methods are adapted for treating the carotid artery. The systems include interventional catheters and blood vessel access devices that are adapted for transcervical insertion into the carotid artery. Embodiments of the systems and methods can be used in combination with embolic protection systems including blood flow reversal mechanisms, arterial filters, and arterial occlusion devices.Type: GrantFiled: August 5, 2011Date of Patent: April 18, 2017Assignee: Silk Road Medical, Inc.Inventors: Ari Ryan, Alan K. Schaer, Gregory M. Hyde, Richard J. Renati, Michi E. Garrison
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Patent number: 9526504Abstract: One disclosed embodiment comprises a method for treating lesions in the carotid artery of a mammalian body. The method comprises transcervical access and blocking of blood flow through the common carotid artery (with or without blocking of blood flow through the external carotid artery), shunting blood from the internal carotid artery and treating the lesion in the carotid artery.Type: GrantFiled: February 13, 2015Date of Patent: December 27, 2016Assignee: Silk Road Medical, Inc.Inventor: David W. Chang
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Patent number: 9492637Abstract: 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.Type: GrantFiled: February 22, 2016Date of Patent: November 15, 2016Assignee: Silk Road Medical, Inc.Inventors: Michi E. Garrison, Scott D. Wilson
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Patent number: 9399118Abstract: Disclosed is an arterial access sheath for introducing an interventional device into an artery. The arterial access sheath includes an elongated body sized and shaped to be transcervically introduced into a common carotid artery at an access location in the neck and an internal lumen in the elongated body having a proximal opening in a proximal region of the elongated body and a distal opening in a distal region of the elongated body. The internal lumen provides a passageway for introducing an interventional device into the common carotid artery when the elongated body is positioned in the common carotid artery. The elongated body has a proximal section and a distalmost section that is more flexible than the proximal section. A ratio of an entire length of the distalmost section to an overall length of the sheath body is one tenth to one half the overall length of the sheath body.Type: GrantFiled: January 25, 2016Date of Patent: July 26, 2016Assignee: Silk Road Medical, Inc.Inventors: Stewart M. Kume, Michi E. Garrison, Michael P. Wallace, Herbert Mendoza, Marlon Moreno
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Patent number: 9295817Abstract: Described herein are methods and devices for selectively applying fluids (particularly anesthetics) to a target tissue from within a blood vessel while minimizing the amount of fluid applied to non-target tissue. The injection catheters described herein may include an elongate body, a directional injector, and one or more holdfasts for securing the catheter before extending the injector. The methods of selectively applying anesthetic to a target structure generally include the steps of inserting an injection catheter into a body vessel, positioning the injection catheter within the body vessel near the target structure, anchoring the injection catheter before extending a directional injector from the injection catheter, and applying anesthetic from the injection catheter to the target structure.Type: GrantFiled: November 12, 2012Date of Patent: March 29, 2016Assignee: Silk Road Medical, Inc.Inventor: David W. Chang
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Patent number: 9265512Abstract: 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.Type: GrantFiled: December 12, 2014Date of Patent: February 23, 2016Assignee: Silk Road Medical, Inc.Inventors: Michi E. Garrison, Scott D. Wilson