Endovascular device for entrapment of particulate matter and method for use
First Claim
1. A device for filtering particulate matter in a bodily passage, the device comprising:
- an outer structure capable of insertion into the bodily passage; and
an inner filter connected to said outer structure.
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Accused Products
Abstract
A device and method for protecting a blood vessel, and hence bodily tissues, against damage caused by particulate such as an embolus. The device may be a stent, for insertion in a large artery such as the ascending aorta, and may be combined with a filter. In one embodiment, the device includes an outer wire frame rather than a stent. The stent may be made of at least one layer of mesh, which is typically attached or mounted to the arterial wall. Typically only part of the stent is attached (for example at a reinforcing ring structure). Typically the size of the apertures of the mesh at the top portion of the stent is smaller than the bottom portion of the stent. The device and method are particularly useful in preventing blockages of flow to the brain, but have other uses as well. An electric charge may be placed on the device, for example, to prevent blood components from collecting.
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Citations
36 Claims
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1. A device for filtering particulate matter in a bodily passage, the device comprising:
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an outer structure capable of insertion into the bodily passage; and
an inner filter connected to said outer structure. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A device for filtering in a bodily passage, the device comprising:
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an outer structure capable of insertion into the bodily passage; and
an inner filter disposed within said outer structure and extending beyond said outer structure.
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19. A device for filtering in a bodily passage, the device comprising:
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an outer structure capable of insertion into the bodily passage; and
an inner filter disposed within said outer structure and including at least two overlapping leaflets.
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20. A device for filtering in a bodily passage, the device comprising:
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an inner filter means for filtering particulate; and
an outer stent means for holding said inner filter means.
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21. A method for filtering particulate matter from a blood vessel in a patient, the method comprising:
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inserting a device into the blood vessel, said device including at least;
an outer structure capable of insertion into the blood vessel; and
an inner filter connected anchored to said outer structure. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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29. A method for filtering particulate matter from a blood vessel in a patient, the method comprising:
inserting a device into the blood vessel during a surgical procedure, said device including at least;
an outer structure capable of insertion into the blood vessel; and
an inner filter connected anchored to said outer structure; and
,keeping said device to remain in the blood vessel after said procedure is complete.
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30. A method for filtering particulate matter from a blood vessel in a patient, the method comprising:
inserting a device into the blood vessel during a surgical procedure, said device including at least;
an outer structure capable of insertion into the blood vessel; and
an inner filter connected anchored to said outer structure; and
, inserting an additional filter into said device.
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31. A device for filtering particulate matter in a bodily passage, the device comprising:
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an outer structure for insertion into the bodily passage, said outer structure conforming to a shape of the bodily passage; and
an inner filter for being anchored to said outer structure and for filtering the particulate matter, said inner filter having a portion extending beyond said outer structure, said extended portion being at least partially flexible. - View Dependent Claims (32, 33)
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34. A method for filtering particulate matter from a blood vessel, the method comprising:
providing a device for being inserted into the blood vessel, said device featuring;
an outer structure for conforming to a shape of the blood vessel; and
an inner filter for being anchored to said outer structure and for filtering the particulate matter, said inner filter having a portion extending beyond said outer structure, said extended portion being at least partially flexible;
inserting said device into the blood vessel during an insertion procedure; and
allowing said device to remain in the blood vessel after said insertion procedure is complete for filtering the particulate matter. - View Dependent Claims (35, 36)
Specification