Aneurysm occlusion system and method
First Claim
1. An aneurysm occlusion device positionable within a cerebral blood vessel covering a neck of an aneurysm on the blood vessel, the device comprising:
- a tubular element having a lumen, the tubular element including an occlusive sidewall including a plurality of gaps, the gaps of a size sufficiently small to cause at least partial occlusion against flow of blood from the blood vessel through the side wall into the aneurysm, wherein the gaps are proportioned to allow flow of fluid through the side wall between the blood vessel and a side branch vessel in response to a fluid pressure differential between a first area inside the lumen and a second area outside the lumen.
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Accused Products
Abstract
An aneurysm occlusion device is positionable within a cerebral blood vessel covering a neck of an aneurysm on the blood vessel. The device includes a tubular element having a lumen surrounded by an occlusive sidewall including a plurality of gaps. The gaps are sufficiently small to cause at least partial occlusion against flow of blood from the blood vessel through the side wall into the aneurysm, but are expandable in response to a fluid pressure differential between a first area inside the lumen and a second area outside the lumen to allow flow of fluid through the side wall between the blood vessel and a side branch vessel.
197 Citations
38 Claims
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1. An aneurysm occlusion device positionable within a cerebral blood vessel covering a neck of an aneurysm on the blood vessel, the device comprising:
a tubular element having a lumen, the tubular element including an occlusive sidewall including a plurality of gaps, the gaps of a size sufficiently small to cause at least partial occlusion against flow of blood from the blood vessel through the side wall into the aneurysm, wherein the gaps are proportioned to allow flow of fluid through the side wall between the blood vessel and a side branch vessel in response to a fluid pressure differential between a first area inside the lumen and a second area outside the lumen. - 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, 28)
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26. A method of treating an aneurysm in a blood vessel, comprising the steps of:
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introducing into the blood vessel a tubular element having an occlusive sidewall, the sidewall defining a lumen and including a plurality of gaps, covering a neck of the aneurysm with the occlusive sidewall, wherein the tubular element substantially occludes flow of blood through the sidewall into the aneurysm, and wherein the gaps, in response to a fluid pressure differential between a first area inside the lumen and a second area outside the lumen, allow flow of fluid through the side wall between the blood vessel and a side branch vessel. - View Dependent Claims (27, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification