TransForm™ Occlusion Balloon Catheter Registry

- This is a prospective, single-arm, non-randomized, multi-center, observational
registry.

- The expected duration for study enrollment is approximately 6 months-1 year.

- Study participation for each subject will be completed upon removal of the guide
catheter post-procedure.

- Approximately 70 subjects will be enrolled at up to 7 study sites (approximately 5
sites in the United States and 2 sites internationally). Each site will be allowed to
enroll up to a maximum subject of 15 subjects per site.

- Enrollment in the registry occurs after a signed Informed Consent Form has been
obtained, and the index procedure starts.

Inclusion Criteria:

1. Subject or legal representative is willing and has provided informed consent.

2. Subject is scheduled to undergo a neurointerventional procedure that may include the
use of the occlusion balloon catheter.

3. Subject is over 18 years of age.

Exclusion Criteria:

1. Subject's anatomy precludes safe delivery of the TransForm Occlusion Balloon
Catheter.

2. Subject's pregnant