Endovascular device engagement
First Claim
1. A medical device configured to perform an endovascular therapy, the device comprising:
- an elongate manipulation member comprising a distal end portion; and
an intervention member comprising a proximal end portion and a mesh, the proximal end portion being coupled with the distal end portion of the elongate manipulation member, the mesh having a proximal mesh end, a distal mesh end, and a mesh length from the proximal end to the distal end, the mesh having a plurality of cells and being compressible to a collapsed configuration for delivery to an endovascular treatment site through a catheter and being self-expandable from the collapsed configuration to an expanded configuration, and wherein at least a portion of the mesh, from a first location to a second location along the mesh, is configured such that an amount of cell deformation in response to longitudinally directed tensile forces decreases by less than 5% or increases in a distal direction along the portion of the mesh, the first and second locations being longitudinally separated by a distance that is more than half of the mesh length;
wherein the mesh is generally cylindrical in the absence of external forces;
wherein, in a longitudinal row of at least three cells, each cell includes first and second struts (i) bounding a proximal portion of the cell and (ii) diverging in a distal direction;
wherein, in the longitudinal row, each cell distally adjacent to another cell has a larger proximal inscribed strut angle between the first and second struts than has the another cell; and
wherein the first struts of all cells in the longitudinal row of at least three cells have substantially equal lengths.
1 Assignment
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Accused Products
Abstract
A medical device, configured to perform an endovascular therapy, e.g., thrombectomy, can comprise an elongate manipulation member and an intervention member. The intervention member can comprise a proximal end portion and a mesh. The proximal end portion can be coupled with the distal end portion of the elongate manipulation member. The mesh can have a plurality of cells and, be compressible to a collapsed configuration for delivery to an endovascular treatment site through a catheter, and be self-expandable from the collapsed configuration to an expanded configuration. At least a portion of the mesh, from a first location to a second location along the mesh, can be configured such that an amount of cell deformation in response to longitudinally directed tensile forces decreases by less than 5% or increases in a distal direction along the portion of the mesh.
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Citations
31 Claims
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1. A medical device configured to perform an endovascular therapy, the device comprising:
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an elongate manipulation member comprising a distal end portion; and an intervention member comprising a proximal end portion and a mesh, the proximal end portion being coupled with the distal end portion of the elongate manipulation member, the mesh having a proximal mesh end, a distal mesh end, and a mesh length from the proximal end to the distal end, the mesh having a plurality of cells and being compressible to a collapsed configuration for delivery to an endovascular treatment site through a catheter and being self-expandable from the collapsed configuration to an expanded configuration, and wherein at least a portion of the mesh, from a first location to a second location along the mesh, is configured such that an amount of cell deformation in response to longitudinally directed tensile forces decreases by less than 5% or increases in a distal direction along the portion of the mesh, the first and second locations being longitudinally separated by a distance that is more than half of the mesh length; wherein the mesh is generally cylindrical in the absence of external forces; wherein, in a longitudinal row of at least three cells, each cell includes first and second struts (i) bounding a proximal portion of the cell and (ii) diverging in a distal direction; wherein, in the longitudinal row, each cell distally adjacent to another cell has a larger proximal inscribed strut angle between the first and second struts than has the another cell; and wherein the first struts of all cells in the longitudinal row of at least three cells have substantially equal lengths. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A medical device configured to perform an endovascular therapy, the device comprising:
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an elongate manipulation member comprising a distal end portion; and an intervention member comprising a proximal end portion and a plurality of cells forming a mesh, the proximal end portion being coupled with the distal end portion of the elongate manipulation member, the mesh having a proximal mesh end, a distal mesh end, and a mesh length from the proximal end to the distal end, the mesh being compressible to a collapsed configuration for delivery to an endovascular treatment site through a catheter and being self-expandable from the collapsed configuration to an expanded configuration, and wherein, from a first location to a second location along the mesh, each cell distally adjacent to another cell, in a longitudinal row of cells, has a larger interior bounded area than has the another cell, the first and second locations being longitudinally separated by a distance that is more than half of the mesh length; wherein the mesh is generally cylindrical in the absence of external forces; wherein each of at least three consecutive cells in the longitudinal row includes first and second struts (i) bounding a proximal portion of the cell and (ii) diverging in a distal direction; and wherein, in the longitudinal row, each cell distally adjacent to another cell has a larger proximal inscribed strut angle between the first and second struts than has the another cell. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A medical device configured to perform an endovascular therapy, the device comprising:
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an elongate manipulation member comprising a distal end portion; and an intervention member comprising a proximal end portion and a plurality of cells forming a mesh, the proximal end portion being coupled with the distal end portion of the elongate manipulation member, the mesh having a proximal mesh end, a distal mesh end, and a mesh length from the proximal end to the distal end, the mesh being compressible to a collapsed configuration for delivery to an endovascular treatment site through a catheter and being self-expandable from the collapsed configuration to an expanded configuration, wherein, in a longitudinal row of at least three cells, each cell includes first and second struts (i) bounding a proximal portion of the cell and (ii) diverging in a distal direction, and wherein, in the longitudinal row, each cell distally adjacent to another cell has a larger proximal inscribed strut angle between the first and second struts, than has the another cell; wherein the mesh is generally cylindrical in the absence of external forces; and wherein each cell distally adjacent to another cell in the longitudinal row has a larger maximum cell width than has the another cell. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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Specification