METHODS AND APPARATUS FOR FLOW RESTORATION
5 Assignments
0 Petitions
Accused Products
Abstract
Methods for restoring blood flow in occluded blood vessels using an apparatus having a self-expandable distal segment that is pre-formed to assume a superimposed structure in an unconstrained condition but can be made to take on a volume-reduced form making it possible to introduce it with a microcatheter and a push wire arranged at the proximal end, with the distal segment in its superimposed structure assuming the form of a longitudinally open tube and having a mesh structure of interconnected strings or filaments or struts. In a preferred embodiment, the distal segment has a tapering structure at its proximal end where the strings or filaments or struts converge at a connection point.
9 Citations
51 Claims
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1-33. -33. (canceled)
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34. A removable, integrated apparatus-thrombus mass, comprising a thrombus at least partially engaged with an apparatus, wherein the apparatus comprises:
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a structure comprising a first plurality of cells, the structure having a proximal end and a distal end, the proximal end and the distal end being open, and the first plurality of cells being configured to engage at least a portion of the thrombus; a tapering portion comprising a second plurality of cells, the tapering portion disposed toward the proximal end of the structure; and a connection portion, at which the tapering portion converges, located at a proximal end of the tapering portion; wherein the apparatus is self-expandable and pre-formed to assume a volume-enlarged form and, in the volume-enlarged form, takes the form of a longitudinally open tube tapering toward the connection portion. - View Dependent Claims (35, 36, 37, 38, 39, 40, 41, 42)
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43. A removable, integrated apparatus-thrombus mass, comprising a thrombus at least partially engaged with a self-expandable apparatus, wherein the apparatus comprises:
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a structure comprising a first plurality of cells, the structure having a proximal end and a distal end, the proximal end and the distal end being open, and the first plurality of cells being configured to interlock with at least a portion of the thrombus; a tapering portion comprising a second plurality of cells, the tapering portion disposed toward the proximal end of the structure; and a connection member, toward which the tapering portion converges, located at a proximal end of the tapering portion; wherein the self-expandable apparatus is configured to assume a volume-enlarged form and, in the volume-enlarged form, to take the form of a longitudinally open tube; and wherein the thrombus extends outside of the structure. - View Dependent Claims (44, 45, 46, 47, 48, 49, 50, 51)
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Specification