Devices and methods for preventing distal embolization during interventional procedures
AssigneeCoAxia, Inc.
InventorDenise R. Barbut
Life of this patent
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Abstract
The invention provides a medical device having a catheter and first and second expandable members. The device may be used for protection against stroke by inserting the catheter into a carotid artery, locating the first expandable member within a common carotid artery, locating the second expandable member within an external carotid artery, expanding the first expandable member to occlude the common carotid artery, and expanding the second expandable member to at least partially obstruct the external carotid artery. By this method antegrade blood flow in the internal carotid artery stops.
Claims18
A method for protection against stroke, comprising the steps of:
- inserting a distal end of a catheter into a carotid artery;
- locating a first expandable member within a common carotid artery proximal a lesion in an internal carotid artery;
- locating a second expandable member within an external carotid artery;
- expanding the first expandable member to occlude the common carotid artery;
- expanding the second expandable member to at least partially obstruct the external carotid artery thereby abolishing antegrade blood flow in the internal carotid artery, wherein blood flow in the internal carotid artery is reversed to pass over the lesion and toward the common carotid artery without blocking the internal carotid artery downstream of the lesion;
- and
- performing an angioplasty procedure on the lesion.
A method for protection against stroke, comprising the steps of:
- inserting a distal end of a catheter into a carotid artery;
- locating a first expandable member within a common carotid artery proximal a lesion in an internal carotid artery;
- locating a second expandable member within an external carotid artery;
- expanding the first expandable member to occlude the common carotid artery;
- expanding the second expandable member to at least partially obstruct the external carotid artery thereby abolishing antegrade blood flow in the internal carotid artery, wherein blood flow in the internal carotid artery is reversed to pass over the lesion and toward the common carotid artery without blocking the internal carotid artery downstream of the lesion;
- and
- deploying a stent within the lesion.
Dependencies are inferred from the claim text.