A Pilot Study to Determine Optimal Procedure Steps to Obtain and Maintain Uterine Artery Occlusion With the D-UAO Device

Inclusion Criteria:

* Age 25-55 years with regular menses and at least one symptom related to uterine fibroids (for example heavy bleeding).
* Completed child-bearing.
* At least one uterine fibroid of 3 cm diameter or greater with a prevailing pathology (e.g. as opposed to adenomyosis) of fibroids determined through abdominal/transvaginal ultrasound.
* Confirmation of the ability to clearly visualise bilateral uterine arteries with 2/3DPD.
* Dominant fibroid (defined as \>3cm in diameter) must be well vascularised as determined by CE-MRI (for Group 2 and 3 patients only).
* Able to tolerate the required prolonged supine position during treatment (approximately 6 hours).
* Cervix suitable for tenaculum placement as determined by pelvic exam.
* Normal Pap smear within the last 36 months.
* Agrees to participate in the study, and following review of the patient information sheet documents this agreement by signing the Ethics Committee approved informed consent.

Exclusion Criteria:

* Prior endometrial ablation, uterine artery embolization, or uterine artery ligation.
* Pregnancy (As confirmed by a urine pregnancy test at screening and immediately prior to procedure).
* One or more lower uterine segment fibroids determined through pelvic exam which in the examiner's opinion would prevent proper clamp application.
* Any known contraindications to the contrast agent to be used for the CE-MRI as determined by the study radiologist (for Group 2 and 3 patients only).
* Pelvic mass outside the uterus suggesting other disease processes.
* An intrauterine device (IUD) in place during the day of procedure.
* Hydronephrosis as determined by interpretation of a pre-procedure renal ultrasound.
* No ureteral jets observed on ultrasound prior to clamping.
* Presence of a pedunculated fibroid determined by ultrasound, hysteroscopy, or saline infused sonography or CE MRI.
* Any current acute or chronic systemic infection or localized pelvic infection, including an unresolved urinary tract infection.
* Clinical history of any thromboembolic disease.
* History of gynecologic malignancy, atypical endometrial hyperplasia, or pelvic inflammatory disease.
* Using anticoagulation therapy (except OTC treatments, e.g. aspirin), or has a known underlying bleeding disorder.
* In the investigator's opinion, any medical condition or psychiatric illness that could potentially be life threatening or affect their ability to complete the study visits according to this protocol.