Systems and methods for treating a carotid artery
AssigneeSilk Road Medical, Inc.
InventorsAri Ryan, Alan K. Schaer, Gregory M. Hyde, Richard J Renati, Michi E. Garrison
Life of this patent
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Abstract
Systems and methods are adapted for treating the carotid artery. The systems include interventional catheters and blood vessel access devices that are adapted for transcervical insertion into the carotid artery. Embodiments of the systems and methods can be used in combination with embolic protection systems including blood flow reversal mechanisms, arterial filters, and arterial occlusion devices.
Claims16
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;
- 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 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.
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, the hemostasis valve assembly comprising a first seal member that seals an internal chamber of the valve assembly from the internal lumen of the distal sheath, wherein the valve assembly is of adjustable size including a first size that is too small for passage of the interventional device through the hemostasis valve assembly into the internal lumen of the distal sheath, and a second size sufficiently large to permit passage of the interventional device through the hemostasis valve assembly into the internal lumen of the distal sheath;
- and
- an interventional device with a coupler adapted to open the hemostasis valve assembly to the second size.
Dependencies are inferred from the claim text.