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US 2011/0257675 A1Published application
Vena cava fliter having hourglass shape
AssigneeAbbott Laboratories
InventorDavid Mackiewicz
Life of this patent
Estimating the term…
Abstract
The present invention is a luminal filter including: a plurality of filter elements interconnected so as to form a filter body shaped in a free recovery form and having a plurality of apertures disposed between and defined by the interconnected filter elements. The apertures are dimensioned so as to inhibit a thrombus of a selected size from passing through the apertures and being dimensioned so as to allow blood components smaller than the selected size to pass through the apertures. The filter body includes a first funnel and second funnel coupled at least indirectly coupled together at their small ends.
Claims20
A filter for use in a body lumen of a subject, the filter comprising:
- a plurality of filter elements interconnected so as to form a filter body having a plurality of apertures disposed between and defined by the interconnected filter elements, said filter body comprising:
- a first funnel having a first funnel-shaped body defining a first conduit having a first larger end fluidly coupled to and opposite of a first smaller end, said first funnel-shaped body having a plurality of first apertures defined by the interconnected filter elements;
- and
- a second funnel having a second funnel-shaped body defining a second conduit having a second larger end fluidly coupled to and opposite of a second smaller end, said second funnel-shaped body having a single spiral filter element that spirals from the second smaller end to the second larger end, with the single spiral filter element being wound tighter at the second smaller end than at the second larger end.
1 more element
A filter for use in a body lumen of a subject, the filter comprising:
- a plurality of filter elements interconnected so as to form a filter body having a plurality of apertures disposed between and defined by the interconnected filter elements, said filter body comprising:
- a first funnel having a first funnel-shaped body defining a first conduit having a first larger end fluidly coupled to and opposite of a first smaller end, said first funnel-shaped body having a first single spiral filter element that spirals from the first smaller end to the first larger end, with the first single spiral filter element being wound tighter at the first smaller end than at the first larger end;
- a second funnel having a second funnel-shaped body defining a second conduit having a second larger end fluidly coupled to and opposite of a second smaller end, said second funnel-shaped body having a single spiral filter element that spirals from the second smaller end to the second larger end, with the second single spiral filter element being wound tighter at the second smaller end than at the second larger end;
- and
- a median portion having a median body defining a median conduit having a first end coupled to the first smaller end of the first funnel and having a second end coupled to the second smaller end of the second funnel, said median conduit being dimensioned so as to inhibit a thrombus of a selected size from passing through the median conduit.
2 more elements
A filter for use in a body lumen of a subject, the filter comprising:
- a plurality of filter elements interconnected so as to form a filter body having a plurality of apertures disposed between and defined by the interconnected filter elements, said filter body comprising:
- a first funnel having a first funnel-shaped body defining a first conduit having a first larger end fluidly coupled to and opposite of a first smaller end, said first funnel-shaped body having a first single spiral filter element that spirals from the first smaller end to the first larger end and a first aperture that spirally extends from the first smaller end to the first larger end, the single spiral filter element being wound tighter at the first smaller end than at the first larger end;
- a second funnel having a second funnel-shaped body defining a second conduit having a second larger end fluidly coupled to and opposite of a second smaller end, said second funnel-shaped body having a second single spiral filter element that spirals from the second smaller end to the second larger end and a second aperture that spirally extends from the second smaller end to the second larger end, the second single spiral filter element being wound tighter at the second smaller end than at the second larger end;
- and
- a median portion having a median body defining a median conduit having a first end coupled to the first smaller end of the first funnel and having a second end coupled to the second smaller end of the second funnel, said median conduit being dimensioned so as to inhibit a thrombus of a selected size from passing through the median conduit.
2 more elements
Dependencies are inferred from the claim text.