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US 10,478,194 B2Granted
Occlusive devices
AssigneeCovidien LP
InventorsRichard Rhee, Earl Bardsley
Life of this patent
Estimating the term…
Abstract
An implant can include a frame and a mesh component coupled to the frame. The mesh component can define a first porosity, and the frame can define a frame porosity. The combined porosity of the mesh component and the frame can restrict blood flow into the implant.
Claims20
An implant for occluding a target area of a patient's vasculature, comprising:
- a frame comprising a lattice formed of a first plurality of braided filaments that define a first plurality of openings, the first openings having a pore size of from about 1 μm to about 400 μm, the frame comprising a distal region and a proximal region, the frame being expandable from a compressed configuration to an expanded configuration in which the frame has a generally spherical shape, and wherein the first plurality of filaments are coupled together at a hub disposed at a proximal end of the frame;
- a first mesh component coupled to the frame along at least a first portion of the proximal region, the first mesh component comprising a second plurality of braided filaments that define a second plurality of openings, the second pluralities of filaments and openings collectively defining a mesh porosity permitting blood flow therethrough, the mesh porosity being less than a porosity of the frame, such that blood flow into the implant is more restricted along the proximal region than along the distal region of the frame;
- and
- a second mesh component coupled to the frame along at least a second portion of the proximal region, the second portion differing from the first portion, the second mesh component comprising a third plurality of braided filaments that define a third plurality of openings,
- wherein a proximal end of the implant is configured to be detachably coupled to a delivery device.
2 more elements
An implant for occluding a target area of a patient's vasculature, comprising:
- a lattice formed of a braided frame comprising first filaments that intersect each other to define first openings having a pore size of from about 1 μm to about 400 μm, the frame being expandable from a compressed configuration to an expanded configuration in which the frame has a generally spherical shape, wherein the first filaments are coupled together at a hub disposed at a proximal end of the frame,
- a first mesh component coupled to the frame, the first mesh component comprising second filaments and second openings that collectively define a mesh porosity permitting blood flow therethrough, wherein the mesh porosity is less than a porosity of the frame for restricting blood flow into the implant;
- and
- a second mesh component coupled to the frame, the second mesh component comprising a third plurality of braided filaments that define a third plurality of openings,
- wherein an individual one of the first filaments is between the first and second mesh components, and
- wherein a proximal end of the implant is configured to be detachably coupled to a delivery device.
3 more elements
An implant for occluding a target area of a patient's vasculature, comprising:
- a frame comprising a proximal region and first filaments that intersect each other to define first openings having a pore size of from about 1 μm to about 400 μm, the frame being expandable from a compressed configuration wherein the first filaments are coupled together at a hub disposed at a proximal end of the frame to an expanded configuration;
- and
- a first mesh component coupled to a first portion of the proximal region of the frame, the first mesh component comprising second filaments and a first mesh porosity configured to permit blood flow therethrough, wherein the first mesh porosity is less than a porosity of the frame;
- and
- a second mesh component coupled to a second portion of the proximal region of the frame, the second portion differing from the first portion, the second mesh component comprising third filaments and a second mesh porosity configured to permit blood flow therethrough, the second mesh porosity differing from the first mesh porosity,
- wherein a proximal end of the implant is configured to be detachably coupled to a delivery device.
3 more elements
Dependencies are inferred from the claim text.