Patents Assigned to Silk Road Medical, Inc.
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Patent number: 9259215Abstract: 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: October 10, 2014Date of Patent: February 16, 2016Assignee: Silk Road Medical, Inc.Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard Renati, Alan Schaer
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Patent number: 9241699Abstract: 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: November 10, 2014Date of Patent: January 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: 9179909Abstract: A suture-based vessel closure device can perform the dilation of an arteriotomy puncture and does not require previous dilation of the arteriotomy puncture by a separate device or by a procedural sheath dilator. The suture-based vessel closure device can place one or more sutures across the vessel access site such that, when the suture ends are tied off after sheath removal, the stitch or stitches provide hemostasis to the access site.Type: GrantFiled: November 4, 2013Date of Patent: November 10, 2015Assignee: Silk Road Medical, Inc.Inventors: Michi E. Garrison, Gregory M. Hyde, Richard J. Renati, Alan K. Schaer, Tony M. Chou
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Patent number: 9138527Abstract: 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.Type: GrantFiled: September 30, 2013Date of Patent: September 22, 2015Assignee: Silk Road Medical, Inc.Inventors: Richard J. Renati, Michi E. Garrison, Alan K. Schaer, Gregory M. Hyde
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Patent number: 9126018Abstract: 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: December 18, 2014Date of Patent: September 8, 2015Assignee: Silk Road Medical, Inc.Inventor: Michi E. Garrison
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Patent number: 9011364Abstract: 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: March 17, 2011Date of Patent: April 21, 2015Assignee: 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: 9011467Abstract: A suture-based vessel closure device can perform the dilation of an arteriotomy puncture and does not require previous dilation of the arteriotomy puncture by a separate device or by a procedural sheath dilator. The suture-based vessel closure device can place one or more sutures across the vessel access site such that, when the suture ends are tied off after sheath removal, the stitch or stitches provide hemostasis to the access site.Type: GrantFiled: August 12, 2009Date of Patent: April 21, 2015Assignee: Silk Road Medical, Inc.Inventors: Michi E. Garrison, Gregory M. Hyde, Richard Renati, Alan Schaer, Tony M. Chou
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Publication number: 20150025616Abstract: 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: ApplicationFiled: October 7, 2014Publication date: January 22, 2015Applicant: SILK ROAD MEDICAL, INC.Inventor: David W. Chang
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Patent number: 8870805Abstract: 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: December 13, 2010Date of Patent: October 28, 2014Assignee: Silk Road Medical, Inc.Inventor: David W. Chang
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Patent number: 8858490Abstract: 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: July 12, 2010Date of Patent: October 14, 2014Assignee: Silk Road Medical, Inc.Inventors: Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Richard Renati, Alan Schaer
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Publication number: 20140296769Abstract: 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 transcervical approach or transfemoral into the common carotid artery.Type: ApplicationFiled: March 27, 2014Publication date: October 2, 2014Applicant: Silk Road Medical, Inc.Inventors: Gregory M. Hyde, Marlon Moreno, Stuart Kume
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Publication number: 20140296868Abstract: 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: ApplicationFiled: March 21, 2014Publication date: October 2, 2014Applicant: SILK ROAD MEDICAL, INC.Inventors: Michi E. Garrison, Sieu Duong
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Patent number: 8784355Abstract: 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: July 13, 2010Date of Patent: July 22, 2014Assignee: 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: 8740834Abstract: 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: March 17, 2011Date of Patent: June 3, 2014Assignee: Silk Road Medical, Inc.Inventors: Enrique Criado, Tony M. Chou, Michi E. Garrison, Gregory M. Hyde, Alan Schaer, Richard Renati
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Publication number: 20140135661Abstract: 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.Type: ApplicationFiled: November 12, 2013Publication date: May 15, 2014Applicant: Silk Road Medical, Inc.Inventors: Michi E. Garrison, Richard M. Ruedy
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Publication number: 20140058414Abstract: A suture-based vessel closure device can perform the dilation of an arteriotomy puncture and does not require previous dilation of the arteriotomy puncture by a separate device or by a procedural sheath dilator. The suture-based vessel closure device can place one or more sutures across the vessel access site such that, when the suture ends are tied off after sheath removal, the stitch or stitches provide hemostasis to the access site.Type: ApplicationFiled: November 4, 2013Publication date: February 27, 2014Applicant: Silk Road Medical, Inc.Inventors: Michi E. Garrison, Gregory M. Hyde, Richard J. Renati, Alan K. Schaer, Tony M. Chou
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Publication number: 20140046346Abstract: 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: ApplicationFiled: August 7, 2013Publication date: February 13, 2014Applicant: SILK ROAD MEDICAL, INC.Inventors: Ronald Hentges, Michi E. Garrison
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Publication number: 20140031925Abstract: 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.Type: ApplicationFiled: September 30, 2013Publication date: January 30, 2014Applicant: Silk Road Medical, Inc.Inventors: Michi E. Garrison, Tony M. Chou, Gregory M. Hyde
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Publication number: 20140031682Abstract: 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.Type: ApplicationFiled: September 30, 2013Publication date: January 30, 2014Applicant: Silk Road Medical, Inc.Inventors: Richard J. Renati, Michi E. Garrison, Alan K. Schaer, Gregory M. Hyde
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Patent number: 8574245Abstract: A suture-based vessel closure device can perform the dilation of an arteriotomy puncture and does not require previous dilation of the arteriotomy puncture by a separate device or by a procedural sheath dilator. The suture-based vessel closure device can place one or more sutures across the vessel access site such that, when the suture ends are tied off after sheath removal, the stitch or stitches provide hemostasis to the access site.Type: GrantFiled: December 8, 2009Date of Patent: November 5, 2013Assignee: Silk Road Medical, Inc.Inventors: Michi E. Garrison, Gregory M. Hyde, Richard Renati, Alan Schaer, Tony M. Chou