Aortic filter catheter
First Claim
1. An aortic filter catheter comprising:
- an elongated catheter shaft, an embolic filter assembly mounted on said catheter shaft, said embolic filter assembly including a porous filter mesh, said embolic filter assembly being expandable to engage an inner surface of a patient'"'"'s aorta, and an aortic occlusion device mounted on said elongated catheter shaft.
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Accused Products
Abstract
A aortic filter catheter is used to capture potential emboli within the aorta during heart surgery and cardiopulmonary bypass. An expandable embolic filter assembly having fine filter mesh for capturing macroemboli and microemboli is mounted on a catheter shaft having a perfusion lumen with perfusion ports located upstream of the filter. The embolic filter assembly can be actively or passively deployed within the ascending aortic. The embolic filter assembly includes an aortic occlusion device, which may be a toroidal balloon, an expandable balloon or a selectively deployable external catheter flow control valve. The combined device allows percutaneous transluminal administration of cardiopulmonary bypass and cardioplegic arrest with protection from undesirable embolic events.
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Citations
43 Claims
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1. An aortic filter catheter comprising:
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an elongated catheter shaft, an embolic filter assembly mounted on said catheter shaft, said embolic filter assembly including a porous filter mesh, said embolic filter assembly being expandable to engage an inner surface of a patient'"'"'s aorta, and an aortic occlusion device mounted on said elongated catheter shaft. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. An aortic filter catheter comprising:
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an elongated catheter shaft, an embolic filter assembly having a porous filter mesh mounted on said catheter shaft, said embolic filter assembly being expandable to engage an inner surface of a patient'"'"'s aorta, said embolic filter assembly having an inlet end that is open to fluid flow when said embolic filter assembly is in an expanded state, and a toroidal balloon occlusion device mounted at said inlet end of said embolic filter assembly, said toroidal balloon occlusion device having an uninflated state, a first inflated state in which said toroidal balloon occlusion device engages the inner surface of the aorta and in which said toroidal balloon occlusion device has an open central passage permitting fluid flow therethrough, and a second inflated state in which said central passage of said toroidal balloon occlusion device closes preventing fluid flow therethrough. - View Dependent Claims (32, 33, 34, 35, 37, 38, 39, 40, 41, 42, 43)
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36. A method comprising:
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introducing an elongated tubular shaft of an aortic filter catheter into a patient'"'"'s aorta;
positioning an embolic filter assembly having a porous filter mesh mounted on said elongated tubular shaft within the patient'"'"'s ascending aorta;
expanding said embolic filter assembly to engage an inner surface of the patient'"'"'s ascending aorta; and
occluding the patient'"'"'s ascending aorta with an aortic occlusion device mounted on said elongated tubular shaft.
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Specification