METHODS AND DEVICES FOR TREATMENT OF VASCULAR DEFECTS
First Claim
Patent Images
1. A device for treatment of a patient'"'"'s vasculature, comprising:
- an expandable body support structure having;
a low profile radially constrained state with an elongated tubular configuration that includes a first end, a second end, a longitudinal axis and elongate flexible wires disposed substantially parallel to each other with first ends thereof secured to a first ring and second ends thereof secured to a second ring with the first and second rings being disposed substantially concentric to the longitudinal axis, and a middle portion of the expandable body having a first transverse dimension with a low profile suitable for delivery from a microcatheter,an expanded relaxed state having an axially shortened configuration relative to the constrained state with the first ring disposed adjacent the second ring, both rings substantially concentric to the longitudinal axis and each wire forming a smooth arc between the first and second rings with a reverse bend at one or both ends such that the arc of each wire extends axially beyond each respective ring and such that the middle portion has a second transverse dimension substantially greater than the first transverse dimension and each wire is configured to flex radially with respect to the longitudinal axis of the expandable body; and
a permeable layer defect spanning structure disposed at and conforming to a profile of a first end of the expandable body when in the expanded relaxed state.
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0 Petitions
Accused Products
Abstract
Devices and methods for treatment of a patient'"'"'s vasculature with some embodiments configured for delivery with a microcatheter for treatment of the cerebral vasculature of a patient. Some embodiments include thin permeable membranes configured to occlude blood flow therethrough.
386 Citations
125 Claims
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1. A device for treatment of a patient'"'"'s vasculature, comprising:
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an expandable body support structure having; a low profile radially constrained state with an elongated tubular configuration that includes a first end, a second end, a longitudinal axis and elongate flexible wires disposed substantially parallel to each other with first ends thereof secured to a first ring and second ends thereof secured to a second ring with the first and second rings being disposed substantially concentric to the longitudinal axis, and a middle portion of the expandable body having a first transverse dimension with a low profile suitable for delivery from a microcatheter, an expanded relaxed state having an axially shortened configuration relative to the constrained state with the first ring disposed adjacent the second ring, both rings substantially concentric to the longitudinal axis and each wire forming a smooth arc between the first and second rings with a reverse bend at one or both ends such that the arc of each wire extends axially beyond each respective ring and such that the middle portion has a second transverse dimension substantially greater than the first transverse dimension and each wire is configured to flex radially with respect to the longitudinal axis of the expandable body; and a permeable layer defect spanning structure disposed at and conforming to a profile of a first end of the expandable body when in the expanded relaxed state. - View Dependent Claims (3, 4, 5, 7, 9, 16, 17, 21, 109, 110, 111, 112)
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2. (canceled)
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6. (canceled)
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8. (canceled)
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10-15. -15. (canceled)
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18-20. -20. (canceled)
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22-32. -32. (canceled)
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33. A device for treatment of a patient'"'"'s vasculature, comprising:
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an expandable body support structure, having; a low profile radially constrained state with a first end, a second end, an elongated tubular configuration having a longitudinal axis, elongate flexible wires connected at intersections between the first end and second end forming a plurality of open cells between wires in a middle portion of the expandable body, and a first transverse dimension suitable for delivery from a microcatheter configured for navigation in cerebral vasculature, an expanded relaxed state with a tubular configuration having a second transverse dimension substantially greater than the first transverse dimension of the tubular configuration of the constrained state; and a permeable layer spanning at least one cell between wires of the expandable body. - View Dependent Claims (34, 35, 38, 40, 44, 47, 48)
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36. (canceled)
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37. (canceled)
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39. (canceled)
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41-43. -43. (canceled)
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45-46. -46. (canceled)
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49-51. -51. (canceled)
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52. A device for treatment of a patient'"'"'s vasculature, comprising:
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an expandable body support structure having; a low profile radially constrained state with an elongated tubular configuration that includes a first end, a second end, a longitudinal axis and elongate flexible wires disposed substantially parallel to each other with first ends thereof secured relative to each other, and a middle portion of the expandable body having a first transverse dimension with a low profile suitable for delivery from a microcatheter, an expanded relaxed state having an axially shortened configuration relative to the constrained state with each wire forming a smooth arc such that the arc of each wire extends axially beyond the first transverse dimension and such that the middle portion has a second transverse dimension substantially greater than the first transverse dimension and each wire is configured to independently flex in a radial orientation with respect to the longitudinal axis of the expandable body; and a defect spanning structure comprising a permeable layer disposed at and conforming to a profile of a second end of the expandable body when in the expanded relaxed state. - View Dependent Claims (55, 56, 57, 58, 64)
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53-54. -54. (canceled)
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59-63. -63. (canceled)
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65-73. -73. (canceled)
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74. A method of treating a vascular defect, comprising:
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a) providing a vascular defect treatment device comprising a support structure with an expandable body and a defect spanning structure that includes a plurality of microfibers that are substantially parallel to each other when the support structure is in an expanded relaxed state; b) advancing a delivery system to a position adjacent a vascular defect to be treated; c) positioning the device inside the vascular defect; and d) deploying the device such that the expandable body self-expands and the defect spanning structure covers at least a portion of the defect opening or neck. - View Dependent Claims (75, 76, 77, 123, 124, 125)
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78-108. -108. (canceled)
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113. A device for treatment of a patient'"'"'s vasculature, comprising:
an expandable body support structure, having; a low profile radially constrained state with a first end, a second end, an elongated tubular configuration having a longitudinal axis, elongate flexible wires forming a plurality of open cells between wires, and a first transverse dimension suitable for delivery from a microcatheter configured for navigation in cerebral vasculature, an expanded relaxed state with a substantially spherical or globular configuration having a second transverse dimension substantially greater than the first transverse dimension of the tubular configuration of the constrained state; and a permeable layer secured to the expandable body which is configured to cover an aneurysm opening and having a portion with low or no porosity and oriented such that the low porosity portion is substantially perpendicular to the longitudinal axis of the expandable body support structure when in the expanded relaxed state. - View Dependent Claims (114, 115, 116, 117)
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118. A method of treating a vascular defect, comprising:
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a) providing a vascular defect treatment device comprising a support structure with an expandable body constructed from a plurality of wires to form a plurality of open cells between the wires and a defect spanning structure that includes a plurality of filaments that are substantially parallel to each other when the support structure is in an expanded relaxed state and form a low porosity portion in the expanded relaxed state; b) advancing a delivery system to a position adjacent a vascular defect to be treated; c) positioning the device substantially within the vascular defect; and d) deploying the device such that the expandable body self-expands and the defect spanning structure covers at least a portion of the defect opening or neck. - View Dependent Claims (119, 120, 121, 122)
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Specification