Embolic protection during percutaneous heart valve replacement and similar procedures
First Claim
1. A filter device for filtration within the vasculature comprisinga) an elongated delivery structure having a proximal end and a distal end, the elongated delivery structure comprising a tubular element and a guide structure, the tubular element having a proximal end, a distal end, and a lumen extending from the proximal end to the distal end, the guide structure slidably extends through the lumen of the tubular element, and the guide structure has a proximal end and a distal end that extends beyond the distal end of the tubular element;
- b) a first filter element comprising a first filter basket and having an opening into the first filter basket wherein the first filter element is attached at or near the distal end of the tubular element with the opening of the first filter basket oriented toward the distal end of the elongated delivery structure; and
c) a second filter element comprising a second filter basket having an opening into the second filter basket and a proximal strut connecting the second filter basket to the guide structure at a position proximal to the opening of the second filter basket with the opening of the second filter basket oriented toward the proximal end of the elongated delivery structure,wherein the second filter basket and its strut can be extended beyond the distal end of the tubular element.
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Accused Products
Abstract
Various devices are described to provide filtering of flow from the aorta to the left carotid artery and the right carotid artery. The filters can be brought into a desired position through one or more peripheral arteries. A single filter device can provide the desired filtering or a plurality of devices can be used. In particular a single filter device can span between the brachiocephalic artery and the left carotid artery. These filter devices can be used effectively to capture emboli generated during procedures on the heart so that emboli do not travel to the patient'"'"'s brain where the emboli can cause a stroke or other adverse event. In particular, these filters can be used during percutaneous procedures on the heart, such as endovascular heart valve replacement.
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Citations
22 Claims
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1. A filter device for filtration within the vasculature comprising
a) an elongated delivery structure having a proximal end and a distal end, the elongated delivery structure comprising a tubular element and a guide structure, the tubular element having a proximal end, a distal end, and a lumen extending from the proximal end to the distal end, the guide structure slidably extends through the lumen of the tubular element, and the guide structure has a proximal end and a distal end that extends beyond the distal end of the tubular element; -
b) a first filter element comprising a first filter basket and having an opening into the first filter basket wherein the first filter element is attached at or near the distal end of the tubular element with the opening of the first filter basket oriented toward the distal end of the elongated delivery structure; and c) a second filter element comprising a second filter basket having an opening into the second filter basket and a proximal strut connecting the second filter basket to the guide structure at a position proximal to the opening of the second filter basket with the opening of the second filter basket oriented toward the proximal end of the elongated delivery structure, wherein the second filter basket and its strut can be extended beyond the distal end of the tubular element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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Specification