Procedures for vascular occlusion
First Claim
1. A method of reducing blood flow within an aneurysm, the method comprising:
- expanding a stent, from a delivery device, across the aneurysm, such that a stagnated area forms in the aneurysm;
injecting a contrast agent into a blood vessel comprising an aneurysm;
imaging the stagnated area forming a crescent shape, a mushroom shape, a hemispherical shape, and/or a flat side; and
while the stagnated area is in the crescent shape, withdrawing the delivery device from the vessel.
5 Assignments
0 Petitions
Accused Products
Abstract
A method of reducing blood flow within an aneurysm includes: injecting a contrast agent into a blood vessel including an aneurysm; deploying an occlusion device across the aneurysm; producing an image of the aneurysm including the contrast agent; and withdrawing the delivery device from the vessel after observing that the aneurysm has been obstructed by a desired amount. The image may be two-dimensional or three-dimensional. Observing that the aneurysm has been obstructed may include determining a degree of obstruction, for example by comparing an area or volume of the contrast agent in a first image and a second image. The desired amount may be a certain degree of obstruction, identification of a shape indicative of stasis such as a flat surface, an approximate hemisphere, a mushroom, or a crescent. If the occlusion device does not achieve the desired amount, a second occluding device may be deployed.
31 Citations
17 Claims
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1. A method of reducing blood flow within an aneurysm, the method comprising:
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expanding a stent, from a delivery device, across the aneurysm, such that a stagnated area forms in the aneurysm; injecting a contrast agent into a blood vessel comprising an aneurysm; imaging the stagnated area forming a crescent shape, a mushroom shape, a hemispherical shape, and/or a flat side; and while the stagnated area is in the crescent shape, withdrawing the delivery device from the vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of reducing blood flow within an aneurysm, the method comprising:
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expanding a stent, from a delivery device, across an aneurysm of a blood vessel, whereby a stagnated area forms into a crescent shape, a mushroom shape, a hemispherical shape, and/or a flat side in the aneurysm; injecting a contrast agent into the blood vessel, at least a portion of the contrast agent flowing into the aneurysm; and withdrawing the delivery device from the vessel upon imaging that the stagnated area forms the crescent shape, the mushroom shape, the hemispherical shape, and/or the flat side. - View Dependent Claims (9, 10, 11, 12)
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13. A method of reducing blood flow within an aneurysm, the method comprising:
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expanding a stent, from a delivery system, across the aneurysm; injecting a contrast agent into a blood vessel comprising the aneurysm; and withdrawing the delivery system from the vessel upon imaging that the aneurysm has stagnated by less than 70% of a volume of a body of the aneurysm, forming a stagnated area with a crescent shape, a mushroom shape, a hemispherical shape, and/or a flat side; wherein, after withdrawing the delivery device, substantially all of the body progressively thromboses. - View Dependent Claims (14, 15, 16, 17)
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Specification