Evaluation of DeltaMaxx® Microcoil System in Intracranial Aneurysms

Inclusion Criteria: * Subject age ≥18 and ≤80 with a diagnosis of ruptured or unruptured intracranial aneurysm judged suitable for selective endovascular treatment by coil occlusion during single procedure * Investigator intends to use DeltaMaxx Microcoil system during coiling procedure * Investigator intends to use only Codman Neuro microcoils during coiling procedure * Aneurysm size \[largest measurement from the cross sectional images to determine overall aneurysm size, not just the lumen\] ≥6 mm * If ruptured aneurysm: Hunt and Hess 1, 2, or 3 * If unruptured aneurysm: Subject grade Modified Rankin Scale 0 - 2 * The subject or his/her Legally Authorized Representative must voluntarily provide Informed Consent for participation in this study and agree to return for all study visits. Exclusion Criteria: * Prior treatment (surgical or endovascular) of the target aneurysm * Subjects with more than one aneurysm (\>2 mm) that have been treated with endovascular or clipping techniques in the past 30 days. * Subject with social, medical or psychological conditions that interfere with treatment and follow-up evaluation * Women who are pregnant or plan to become pregnant during the study * Life expectancy less than 12 months. * Presence of arteriovenous malformation * Fusiform, mycotic, traumatic, or tumoral aneurysms * Planned aneurysm treatment by parent vessel occlusion * Subject enrolled in any concurrent study