Device and method for providing protection from emboli and preventing occulsion of blood vessels
First Claim
Patent Images
1. A vena cava filter for providing protection from potentially life threatening pulmonary emboli comprising:
- means, movable within the vessel, for trapping potentially life-threatening pulmonary emboli passing through the vessel while maintaining patency therein; and
means, affixed to the trapping means, for both maintaining the trapping means in a desired location in the blood vessel and for introducing fluid to the region of the trapping means for purposes of lysis of the trapped emboli.
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Abstract
An apparatus and method for providing protection from emboli and prevention of occlusion in blood vessels entailing the use of a temporarily emplaced, complaint and conformable trap which may be removed when medically necessary and which will not damage the architecture of the blood vessel.
719 Citations
23 Claims
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1. A vena cava filter for providing protection from potentially life threatening pulmonary emboli comprising:
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means, movable within the vessel, for trapping potentially life-threatening pulmonary emboli passing through the vessel while maintaining patency therein; and means, affixed to the trapping means, for both maintaining the trapping means in a desired location in the blood vessel and for introducing fluid to the region of the trapping means for purposes of lysis of the trapped emboli. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A device for providing protection from emboli and prevention of occlusion in the vena cava, comprising:
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conformable and complaint means for trapping emboli passing through the vessel while maintaining patency therein and continuously adapting to the vessel physiology comprising a plurality of resilient arms which, when unconfined, describe a generally conical surface, the arms including means at their distal ends for preventing the arms from impaling the blood vessel walls; and means, affixed to the trapping means, comprising a flexible, longitudinally stable member having a lumen along its length and a removable obturator in the lumen, the lumen opening both at its proximal end and at the point of affixation to the trapping means, for both maintaining the trapping means in a desired location in the blood vessel and for introducing fluid to the region of the trapping means upon removal of the obturator.
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12. A method for providing protection from emboli and prevention of occlusion of a blood vessel in the body comprising
placing in the vessel means for trapping emboli passing therethrough, the trapping means including means, affixed thereto, for both maintaining the trapping means in a desired location in the blood vessel and for introducing fluid to the region of the trapping means for purposes of lysis of the trapped emboli.
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14. A sterile kit for providing protection from emboli and prevention of occlusion of a blood vessel comprising:
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a sealed package, the interior of which is sterile; an apparatus comprising means for trapping emboli and preventing occlusion of a blood vessel in the body including a hollow stem affixed to the trapping and preventing means; a guidewire; an introducer/remover apparatus; an obturator; and means for attachment of the hollow stem to the body.
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15. A device for providing protection from emboli and prevention of occlusion of a blood vessel, comprising a plurality of resilient arms which, when unconfined, describe a generally conical surface, said arms including coil springs at their distal ends;
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means, affixed to the trapping means, for both maintaining the trapping means in a desired location in the blood vessel and for introducing fluid to the region of the trapping means for purpose of lysis of the trapped emboli. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23)
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Specification