Intravascular flow diverter and related methods
AssigneeMedTech S.A.
InventorsMichael Jones, Thomas James Mock, Joseph Emery, Ibraheem Khan, Kenna Ryan
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Abstract
An intravascular flow diverter for treating an aneurysm of a blood vessel is provided. The intravascular flow diverter includes a frame comprising a plurality of wires forming an expandable structure. The intravascular flow diverter includes a cover disposed on at least a portion of the outer surface of the device. The cover includes a first portion configured to be disposed directly against a neck of the aneurysm.
Claims20
An intravascular flow diverter for treating an aneurysm of a blood vessel, the intravascular flow diverter comprising:
- one or more wires forming a frame, wherein the frame has a collapsed configuration and an expanded configuration, wherein the frame is configured to transition in use from the collapsed configuration to a deployed configuration that substantially conforms to a shape of an inside surface of the blood vessel in the vicinity of the aneurysm;
- a cover coupled to and extending over at least a portion of the frame;
- wherein the cover comprises pores therethrough over the at least a portion of the frame;
- wherein in the expanded configuration a thickness of the cover over at least 70% of the total cover area is less than 7 microns;
- wherein in the expanded configuration at least 95% of the pores by pore count over the at least 70% of the total cover area have an areal equivalent pore diameter of less than 20 microns;
- wherein in the expanded configuration 5% to 20% of the pores by pore count over the at least 70% of the total cover area have an areal equivalent pore diameter of 12 or more microns;
- and
- wherein in the expanded configuration a median areal equivalent pore diameter of the pores over the at least 70% of the total cover area is between 3 and 9 microns.
A method of treating a main vessel sidewall aneurysm, wherein the main vessel has at least one perforating branch vessel adjacent to the sidewall aneurysm, the method comprising:
- expanding a flow diverter within the main vessel and against the sidewall of the main vessel to a deployed configuration over a neck of the sidewall aneurysm and over an entry opening of the perforating branch vessel, wherein the flow diverter comprises a cover, wherein the cover comprises pores therethrough, wherein a first portion of the cover is positioned over the neck of the sidewall aneurysm and a second portion of the cover is positioned over the entry opening of the perforating branch vessel, and wherein a median areal equivalent diameter of the pores of the first portion
- and a median areal equivalent diameter of the pores of the second portion are between 3 and 9 microns.
An intravascular flow diverter for treating an aneurysm of a blood vessel, the intravascular flow diverter comprising:
- one or more wires forming a frame, wherein the frame has a collapsed configuration and an expanded configuration, wherein the frame is configured to transition in use from the collapsed configuration to a deployed configuration that substantially conforms to a shape of an inside surface of the blood vessel in the vicinity of the aneurysm;
- a cover coupled to and extending over at least a portion of the frame;
- wherein the cover comprises pores therethrough over the at least a portion of the frame;
- wherein in the expanded configuration a thickness of the cover over at least 70% of the total cover area is less than 7 microns;
- wherein in the expanded configuration at least 95% of the pores by pore count over the at least 70% of the total cover area have an areal equivalent pore diameter of less than 20 microns;
- wherein in the expanded configuration a median areal equivalent pore diameter of the pores over the at least 70% of the total cover area is between 3 and 9 microns;
- wherein in the expanded configuration 10% to 70% of the pores by pore count over the at least 70% of the total cover area have an areal equivalent pore diameter of less than 5 microns;
- wherein in the expanded configuration 70% to 95% of the pores by pore count over the at least 70% of the total cover area have an areal equivalent pore diameter of less than 10 microns;
- wherein in the expanded configuration 5% to 30% of the pores by pore count over the at least 70% of the total cover area have an areal equivalent pore diameter of 10 microns or more;
- and
- wherein in the expanded configuration the flow diverter surface coverage over the at least 70% of the total cover area is between 45% and 85%.
Dependencies are inferred from the claim text.