IMPROVED MODIFIABLE OCCLUSION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an occlusive device suitable for endovascular treatment of an aneurysm in a region of a parent vessel in a patient.SOLUTION: The occlusive device has a pre-established pore features and has dimensions suitable for insertion into vasculature of the patient to reach the region of the aneurysm in the parent vessel. The device further includes a frangible material. The frangible material initially provides a substantial barrier to a flow through the frangible material and is capable of at least one of localized rupturing and localized eroding, in the presence of a pressure differential arising at an ostium of a perforator vessel communicating with the parent vessel, within an acute time period to minimize ischemia downstream of the perforator vessel.