Low profile emboli capture device
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Accused Products
Abstract
A low profile emboli capture device is provided for use in angioplasty and other intravascular procedures. A standard guidewire is utilized having a reduced cross-sectional area formed near its distal end. A filter and self-expanding stent are packaged on the reduced cross-sectional area of the guidewire. A movable sleeve extends over the guidewire and holds the self-expanding stent and filter in their retracted positions while the device is being positioned in the artery. The sheath is moved relative to the self-expanding stent and filter, whereupon the self-expanding stent and filter become deployed.
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Citations
59 Claims
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1-34. -34. (canceled)
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35. A low profile emboli capture device comprising:
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a guidewire having a proximal end and a distal end;
a filter disposed about a distal portion of the guidewire, the filter having a retracted position and an expanded position, the filter being adapted to capture emboli in its expanded position; and
a sleeve extending over at least a portion of the filter in the retracted position, the sleeve infolded such as to form an inner layer and an outer layer. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A low profile emboli capture device comprising:
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a guidewire having a proximal end, a distal end and a cross-sectional profile, the guidewire including a mounting region having a cross-sectional profile less than the guidewire cross-sectional profile;
a filter disposed about at least a portion of the mounting region, the filter having a retracted position and an expanded position, wherein in the retracted position the filter has a cross-sectional profile approximately the same as the cross-sectional profile of the guidewire; and
a sleeve disposed about at least a portion of the guidewire and slidable thereon, the sleeve including an inverted, double folded end portion extending over the filter, wherein the sleeve is movable between a first position for retaining the filter in the retracted position and a second position for releasing the filter in the expanded position. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59)
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Specification