Filter system and method
First Claim
Patent Images
1. A filter system for use in a body lumen, comprising:
- an elongate filter body having a tubular shaft including an expandable filter region attached at a distal end of the shaft defining a lumen extending from a proximal end of the tubular shaft toward a distal end of the filter region, the expandable filter region; and
a valve defining a valve lumen and having a reversibly sealable opening for unidirectional flow of a fluid through the valve lumen, the valve fixedly attached to the expandable filter region of the elongate filter body, the valve including a frame having a first elliptical member and a second elliptical member meeting at an angle;
wherein the frame is radially movable between a compressed state and an expanded state;
wherein the expandable filter region filters the unidirectional flow of the fluid passing through the valve lumen and the expandable filter region in the expanded state.
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Abstract
A filter system, comprising an elongate filter body defining a lumen and having a proximal end and a distal end. A valve can be provided defining a lumen and having a reversibly sealable opening for unidirectional flow of a fluid through the lumen. The valve can be adjoined proximal the distal end of the elongate filter body, wherein the elongate filter body filters the unidirectional flow of the fluid passing through the lumen of the valve and the lumen of the elongate filter body.
637 Citations
19 Claims
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1. A filter system for use in a body lumen, comprising:
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an elongate filter body having a tubular shaft including an expandable filter region attached at a distal end of the shaft defining a lumen extending from a proximal end of the tubular shaft toward a distal end of the filter region, the expandable filter region; and a valve defining a valve lumen and having a reversibly sealable opening for unidirectional flow of a fluid through the valve lumen, the valve fixedly attached to the expandable filter region of the elongate filter body, the valve including a frame having a first elliptical member and a second elliptical member meeting at an angle; wherein the frame is radially movable between a compressed state and an expanded state; wherein the expandable filter region filters the unidirectional flow of the fluid passing through the valve lumen and the expandable filter region in the expanded state. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification