Methods for aortic atherectomy
First Claim
1. A method for removing plaque from the arteries of a patient, comprising the steps of:
- providing an arterial catheter system comprising a flexible elongate member having an outer surface, a distal region adapted to enter an artery, a proximal region, a filtration system, and an atherectomy assembly disposed within the distal region of the elongate member, the atherectomy assembly comprising a plaque cutter and a trapping element;
introducing the distal region of the arterial catheter into a region of interest within the patient'"'"'s artery;
deploying the filtration system downstream of the plaque within the artery,contacting the atherectomy assembly with the plaque within the artery, wherein the plaque is trapped and held by the atherectomy assembly by use of the trapping element;
excising the plaque from the artery by operating the plaque cutter while operating the trapping element to secure the plaque; and
removing the arterial catheter system and the plaque entrapped therein from the region of interest and the femoral artery.
4 Assignments
0 Petitions
Accused Products
Abstract
An arterial catheter system for removing plaque from the aorta and other arteries is disclosed. The system typically includes an elongate catheter member, a filtration apparatus disposed within the distal region, and an atherectomy assembly which includes a mechanism for trapping and holding mobile or fixed plaque and an excising mechanism for removing the plaque. In use, the catheter is positioned so that the atherectomy assembly lies within a region of interest, the filtration apparatus is deployed downstream of the region of interest, the plaque is trapped and held by a snare, vacuum, or other trapping means, and then the excising mechanism is activated to remove the plaque. Methods are also disclosed for removing plaque from the aorta and other arteries.
560 Citations
26 Claims
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1. A method for removing plaque from the arteries of a patient, comprising the steps of:
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providing an arterial catheter system comprising a flexible elongate member having an outer surface, a distal region adapted to enter an artery, a proximal region, a filtration system, and an atherectomy assembly disposed within the distal region of the elongate member, the atherectomy assembly comprising a plaque cutter and a trapping element; introducing the distal region of the arterial catheter into a region of interest within the patient'"'"'s artery; deploying the filtration system downstream of the plaque within the artery, contacting the atherectomy assembly with the plaque within the artery, wherein the plaque is trapped and held by the atherectomy assembly by use of the trapping element; excising the plaque from the artery by operating the plaque cutter while operating the trapping element to secure the plaque; and removing the arterial catheter system and the plaque entrapped therein from the region of interest and the femoral artery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for removing plaque from the aorta of a patient, comprising the steps of:
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providing an arterial catheter system comprising a flexible elongate member having an outer surface, a distal region adapted to enter an artery, a proximal region, and an atherectomy assembly disposed within the distal region of the elongate member, the atherectomy assembly comprising a plaque cutter and a trapping element; introducing the distal region of the arterial catheter into a region of interest within the patient'"'"'s aorta, through an incision in the femoral or brachial artery; contacting the atherectomy assembly with the plaque within the aorta, wherein the plaque is trapped and held by the atherectomy assembly by use of the trapping element; excising the plaque from the aorta by operating the plaque cutter while operating the trapping element to secure the plaque; and removing the arterial catheter system and the plaque entrapped therein from the region of interest and the aorta. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification