Filter membrane with increased surface area
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Accused Products
Abstract
A filtering device with an increased surface area, and method of making and using the same. The present invention comprises a filtering device including an elongate shaft and a filter coupled to the shaft. The filter may include a filter membrane configured to have an increased surface area.
165 Citations
27 Claims
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1. (canceled)
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2. A filtering device, comprising:
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an elongated shaft having a proximal section and a distal section;
a filter coupled to the distal section of the elongated shaft, the filter including a filter frame and a pleated filter membrane operable between a collapsed position and an expandable position, the filter membrane including a proximal region and a distal region; and
one or more support fibers operatively coupled to the filter membrane. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A filtering device, comprising:
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an elongated shaft having a proximal section and a distal section;
a filter coupled to the distal section of the elongated shaft, the filter including a filter frame and a filter membrane operable between a collapsed position and an expandable position, the filter membrane including a proximal region, a distal region, and a number of folds or pleats defining an augmented surface area of the filter; and
one or more support fibers operatively coupled to the folds or pleats of the filter membrane, said one or more support fibers being longitudinally disposed along a length of the filter. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. A filtering device, comprising:
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an elongated shaft having a proximal section and a distal section;
a filter coupled to the distal section of the elongated shaft, the filter including a filter frame and a filter membrane operable between a collapsed position and an expandable position, the filter membrane including a proximal region, a distal region, and a number of folds or pleats each defining an inward deflection of the filter membrane;
one or more support fibers operatively coupled to the folds or pleats of the filter membrane, each of said one or more fibers being radially spaced apart from each other; and
wherein the radial spacing between each fiber and the elongated shaft increases towards the proximal region of said filter membrane.
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Specification