Implantable stroke risk reduction device
First Claim
1. An implantable device adapted for positioning about the bifurcation zone of the common carotid artery (CCA), the internal carotid artery (ICA) and the external carotid artery (ECA) so as to control the flow of embolic material arriving at the bifurcation zone from said CCA, the device comprising:
- a tubular anchoring member configured and dimensioned for implanting in said bifurcation zone and extending within said bifurcation zone to anchor said device therein, said anchoring member bearing against, and being anchored to, a wall of said CCA and said ECA; and
a deflecting element, secured by said anchoring member across the inlet of the ICA, said deflecting element comprising a mesh having a mesh size sufficient to allow passage of blood substantially without hindrance to said ICA whilst deflecting the flow of embolic material exceeding a predetermined size to said ECA.
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Accused Products
Abstract
An implantable device for positioning about a blood vessel bifurcation zone to control flow of embolic material around said bifurcation. The device comprises an anchoring element extending within said zone of bifurcation to anchor said device therein, and a deflecting element, associated with said anchoring element, said deflecting element comprising a mesh having a mesh size sufficient to allow passage of blood without hindrance while occluding passage of embolic material exceeding a predetermined size.
166 Citations
21 Claims
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1. An implantable device adapted for positioning about the bifurcation zone of the common carotid artery (CCA), the internal carotid artery (ICA) and the external carotid artery (ECA) so as to control the flow of embolic material arriving at the bifurcation zone from said CCA, the device comprising:
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a tubular anchoring member configured and dimensioned for implanting in said bifurcation zone and extending within said bifurcation zone to anchor said device therein, said anchoring member bearing against, and being anchored to, a wall of said CCA and said ECA; and
a deflecting element, secured by said anchoring member across the inlet of the ICA, said deflecting element comprising a mesh having a mesh size sufficient to allow passage of blood substantially without hindrance to said ICA whilst deflecting the flow of embolic material exceeding a predetermined size to said ECA. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for preventing the flow of embolic material flowing about a blood vessel bifurcation zone having a source blood vessel, a first branch vessel, and a second branch vessel from entering the second branch vessel comprising:
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bearing a tubular anchoring member against the walls of the source blood vessel and a first branch vessel thereby anchoring said tubular anchoring member thereto, and anchoring a deflecting element across the inlet of a second branch vessel, said deflecting element being configured and dimensioned to deflect embolic material exceeding a predetermined size; and
deflecting the flow of embolic material exceeding said predetermined size to said first branch vessel whilst allow passage of blood to said second branch vessel substantially without hindrance. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An implantable device adapted for positioning about a blood vessel bifurcation zone having a source blood vessel, a first branch vessel and a second branch vessel so as to control the flow of embolic material arriving at the bifurcation zone from said source blood vessel, the device comprising:
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a deflecting element comprising a mesh having a mesh size configured and dimensioned to allow passage of blood to the second branch vessel substantially without hindrance whilst deflecting the flow of embolic material exceeding a predetermined size to the first branch vessel, and an anchoring member associated with said deflecting element, said anchoring member bearing against the walls of said second branch vessel to anchor the device therein and secure said deflecting element across the inlet of said second branch vessel. - View Dependent Claims (20, 21)
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Specification