Methods and systems for establishing retrograde carotid arterial blood flow
First Claim
Patent Images
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; and
inserting an interventional device into the common carotid artery via the arterial access sheath;
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.
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Accused Products
Abstract
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.
474 Citations
55 Claims
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1. A method for accessing and treating a carotid artery, comprising:
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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; and inserting an interventional device into the common carotid artery via the arterial access sheath; 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. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for use in accessing and treating a carotid artery, said system comprising:
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an arterial access sheath adapted to be introduced into a common carotid artery via a neck of a patient and receive blood flow from the common carotid artery, the arterial access sheath including a distal sheath portion adapted to enter the common carotid artery, wherein the distal sheath portion has a structural configuration that limits a depth of insertion of a distal portion of the arterial access sheath into the common carotid artery; and a filter adapted to be positioned in an internal carotid artery distal of a location of treatment; wherein the structural configuration of the arterial access sheath limits the distal portion 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. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A method for accessing and treating a carotid artery, comprising:
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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; and inserting an interventional device into the common carotid artery via the arterial access sheath; wherein structural configuration of the arterial access sheath limits the distal portion the from being inserted into the common carotid artery beyond a length that would disrupt plaque in the common carotid artery. - View Dependent Claims (15, 16, 17, 18, 19)
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20. A system for use in accessing and treating a carotid artery, said system comprising:
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an arterial access sheath adapted to be introduced into a common carotid artery via a neck of a patient and receive blood flow from the common carotid artery, the arterial access sheath including a distal sheath portion adapted to enter the common carotid artery, wherein the distal sheath portion has a structural configuration that limits a depth of insertion of a distal portion of the arterial access sheath into the common carotid artery; and a filter adapted to be positioned in an internal carotid artery distal of a location of treatment; wherein structural configuration of the arterial access sheath limits the distal portion the from being inserted into the common carotid artery beyond a length that would disrupt plaque in the common carotid artery. - View Dependent Claims (21, 22, 23, 24, 25)
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26. A system for use in accessing and treating a carotid artery, said system comprising:
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an arterial access sheath adapted to be introduced into a common carotid artery via a neck of a patient and receive blood flow from the common carotid artery, the arterial access sheath including a distal sheath portion adapted to enter the common carotid artery, wherein the distal sheath portion has a structural configuration that limits a depth of insertion of a distal portion of the arterial access sheath into the common carotid artery; and a filter adapted to be positioned in an internal carotid artery distal of a location of treatment; wherein the arterial access sheath has a distal region with a reduced luminal diameter to facilitate introduction into the common carotid artery and a proximal region having a larger luminal diameter relative to the distal region to decrease overall flow resistance through the arterial access sheath. - View Dependent Claims (27, 28, 29, 30)
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31. A method for accessing and treating an artery, comprising:
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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; and inserting an interventional device into the common carotid artery via the arterial access sheath; 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. - View Dependent Claims (32, 33, 34)
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35. A system for use in accessing and treating an artery, said system comprising:
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an arterial access sheath adapted to be introduced into a common carotid artery via a neck of a patient and receive blood flow from the common carotid artery, the arterial access sheath including a distal sheath portion adapted to enter the common carotid artery, wherein the distal sheath portion has a structural configuration that limits a depth of insertion of a distal portion of the arterial access sheath into the common carotid artery; and a filter adapted to be positioned in an internal carotid artery distal of a location of treatment; wherein the structural configuration of the arterial access sheath limits the distal portion 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. - View Dependent Claims (36, 37, 38, 39)
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40. A method for accessing and treating an artery, comprising:
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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; and inserting an interventional device into the common carotid artery via the arterial access sheath; wherein structural configuration of the arterial access sheath limits the distal portion the from being inserted into the common carotid artery beyond a length that would disrupt plaque in an artery. - View Dependent Claims (41, 42, 43, 44, 45)
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46. A system for use in accessing and treating an artery, said system comprising:
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an arterial access sheath adapted to be introduced into a common carotid artery via a neck of a patient and receive blood flow from the common carotid artery, the arterial access sheath including a distal sheath portion adapted to enter the common carotid artery, wherein the distal sheath portion has a structural configuration that limits a depth of insertion of a distal portion of the arterial access sheath into the common carotid artery; and a filter adapted to be positioned in an internal carotid artery distal of a location of treatment; wherein structural configuration of the arterial access sheath limits the distal portion the from being inserted into the common carotid artery beyond a length that would disrupt plaque in the common carotid artery. - View Dependent Claims (47, 48, 49, 50)
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51. A system for use in accessing and treating an artery, said system comprising:
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an arterial access sheath adapted to be introduced into a common carotid artery via a neck of a patient and receive blood flow from the common carotid artery, the arterial access sheath including a distal sheath portion adapted to enter the common carotid artery, wherein the distal sheath portion has a structural configuration that limits a depth of insertion of a distal portion of the arterial access sheath into the common carotid artery; and a filter adapted to be positioned in an internal carotid artery distal of a location of treatment; wherein the arterial access sheath has a distal region with a reduced luminal diameter to facilitate introduction into the common carotid artery and a proximal region having a larger luminal diameter relative to the distal region to decrease overall flow resistance through the arterial access sheath. - View Dependent Claims (52, 53, 54, 55)
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Specification