发明名称 |
Procedures for vascular occlusion |
摘要 |
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. |
申请公布号 |
US9408728(B2) |
申请公布日期 |
2016.08.09 |
申请号 |
US201514791617 |
申请日期 |
2015.07.06 |
申请人 |
Covidien LP |
发明人 |
Berez Aaron;Tran Quang |
分类号 |
A61F2/06;A61F2/82;A61F2/90;A61F2/95;A61F2/852 |
主分类号 |
A61F2/06 |
代理机构 |
|
代理人 |
Kertz, Esq. Mark J. |
主权项 |
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. |
地址 |
Mansfield MA US |