Flexible tube for cartridge filter
First Claim
Patent Images
1. A filter assembly, comprising:
- a filter cartridge having a first end, a second end, an intermediate portion therebetween, and a lumen extending therethrough and adapted to receive an elongate shaft, wherein the filter cartridge includes a braid defining, in part, an undulating outer surface of the filter cartridge;
a filter frame fixedly attached to an outer surface of the intermediate portion of the filter cartridge; and
a filter membrane for trapping emboli attached to the filter frame.
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Accused Products
Abstract
Embolic protection filtering devices and methods of making and using the same. The present invention may include an embolic protection filtering device including a filter cartridge that is slidable over medical devices, for example, guidewires. The filter cartridge may have a filter coupled thereto and may have desirable flexibility and trackability characteristics.
175 Citations
16 Claims
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1. A filter assembly, comprising:
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a filter cartridge having a first end, a second end, an intermediate portion therebetween, and a lumen extending therethrough and adapted to receive an elongate shaft, wherein the filter cartridge includes a braid defining, in part, an undulating outer surface of the filter cartridge; a filter frame fixedly attached to an outer surface of the intermediate portion of the filter cartridge; and a filter membrane for trapping emboli attached to the filter frame. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An embolic protection device, comprising:
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an elongate guidewire; a tubular filter cartridge slidably disposed over the guidewire, the filter cartridge including a braided member defining at least a portion of an undulating outer surface of the filter cartridge; and an embolic protection filter comprising a filter membrane or fabric, the filter permanently attached to an outer surface of an intermediate portion of the filter cartridge. - View Dependent Claims (8)
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9. A medical device, comprising:
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an elongate shaft having a proximal region and a distal region; and a filtering apparatus disposed at least partially on the elongate shaft, the filtering apparatus including a tube having a first end, a second end, and a helical groove formed therein, a filter comprising a filter membrane or fabric and disposed about the helical groove, a first stop configured to abut the tube in a first position and a second stop configured to abut the tube in a second position, wherein the filter in the second position is more distal relative to the filter in the first position. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A medical device, comprising:
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an elongate shaft having a proximal region and a distal region; a tube slidably disposed about the distal region of the elongate shaft, the tube having a helical groove formed therein; a filter comprising a filter membrane or fabric and disposed over the helical groove and slidably disposed on the shaft. - View Dependent Claims (16)
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Specification