Methods for facilitating revascularization of occlusion
First Claim
1. A method, comprising:
- engaging a first guide within a vessel wall adjacent to a distal cap of an occlusion and advancing the first guide, in a retrograde direction, to a subintimal position near a proximal cap of the occlusion;
engaging a second guide within the proximal cap or the vessel wall adjacent to the proximal cap and advancing the second guide, in an antegrade direction, until its distal end is near or axially overlaps a distal end of the first guide;
connecting a first vessel lumen, formed by advancement of the first guide, and a second vessel lumen, formed by advancement of the second guide, including inflating a balloon positioned at or near the distal end of the second guide; and
receiving the distal end of the first guide within a passage of the inflated balloon.
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Abstract
This patent document discloses methods for facilitating revascularization of an occlusion in a blood vessel. A method can include engaging a first guide within a vessel wall adjacent to a distal cap of the occlusion and advancing the first guide, in a retrograde direction, to a subintimal position near a proximal cap of the occlusion. A second guide can be engaged within the proximal cap or the vessel wall adjacent to the proximal cap and advanced, in an antegrade direction, until its distal end is near or axially overlaps a distal end of the first guide. A first vessel lumen, formed by advancement of the first guide, and a second vessel lumen, formed by advancement of the second guide, can be connected by inflating a balloon positioned at or near the distal end of the second guide. The distal end of the first guide can be received by a passage of the inflated balloon, the balloon can be subsequently deflated to collapse the passage and clamp a passage wall against the first guide'"'"'s distal end, and the balloon and first guide can be pulled into an antegrade guide catheter.
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Citations
24 Claims
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1. A method, comprising:
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engaging a first guide within a vessel wall adjacent to a distal cap of an occlusion and advancing the first guide, in a retrograde direction, to a subintimal position near a proximal cap of the occlusion; engaging a second guide within the proximal cap or the vessel wall adjacent to the proximal cap and advancing the second guide, in an antegrade direction, until its distal end is near or axially overlaps a distal end of the first guide; connecting a first vessel lumen, formed by advancement of the first guide, and a second vessel lumen, formed by advancement of the second guide, including inflating a balloon positioned at or near the distal end of the second guide; and receiving the distal end of the first guide within a passage of the inflated balloon. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A method of facilitating treatment of a blood vessel having a vascular wall, an innermost surface of the vascular wall defining a vascular lumen having an occlusion therein, the vascular wall having an outermost surface further from the vascular lumen, comprising:
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advancing a retrograde-delivered guidewire into subintimal space within the vascular wall and adjacent to a distal cap of the occlusion until its distal end is near a proximal cap of the occlusion; advancing an antegrade-delivered guidewire into subintimal space within the vascular wall or within the proximal cap until its distal end is near or overlaps the distal end of the retrograde-delivered guidewire; connecting a first vessel lumen, formed by advancement of the retrograde-delivered guidewire, and a second vessel lumen, formed by advancement of the antegrade-delivered guidewire, including inflating a balloon positioned at or near the distal end of the antegrade-delivered guidewire; further advancing the retrograde-delivered guidewire into a passage of the inflated balloon; and deflating the balloon and collapsing the passage, including capturing the distal end of the retrograde-delivered guidewire using a wall of the collapsed passage. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification