A Study Evaluating the Safety and Effectiveness of the PulseRider® Aneurysm Neck Reconstruction Device Used in Conjunction With Endovascular Coil Embolization in the Treatment of Wide-Neck Bifurcation Intracranial Aneurysm

The objective of this study is to evaluate the safety and effectiveness of the PulseRider®
Aneurysm Neck Reconstruction Device in conjunction with coil embolization in the endovascular
treatment of unruptured wide-neck intracranial aneurysms.

Inclusion Criteria:

1. Subject with wide neck intracranial aneurysm located at a bifurcation

2. The subject is between 18 and 80 years of age the time of consent

3. Informed consent is obtained and the subject signs the IRB approved consent prior to
beginning any study procedures

4. In the opinion of the treating physician, placement of the PulseRider® device is
technically feasible and clinically indicated

Exclusion Criteria:

1. Unstable neurological deficit (condition worsening within the last 90 days)

2. Subarachnoid Hemorrhage (SAH) within the last 60 days

3. Irreversible bleeding disorder

4. Patient has another intracranial aneurysm that in the Investigator's opinion, may
require treatment within the 1 year follow up period

5. A history of contrast allergy that cannot be medically controlled

6. Known allergy to nickel

7. Relative contraindication to angiography

8. Woman of child-bearing potential who cannot provide a negative pregnancy test

9. Current involvement in a study for another investigational product

10. Patient and / or family considering a move from this geographical location at the time
of consent

11. Categorized as a vulnerable population and require special treatment with respect to
safeguards of well-being (e.g. cognitively impaired, veteran, prisoner, etc.)