Reap the Benefits of a Safer and Less-Invasive Hemodialysis With Ellipsys EndoAVF

Take advantage of a unique, non-surgical option leading to faster, more efficient, less invasive vascular access. Following this simple outpatient procedure, you go home with just a band aid!

“I had no surgery and have no scar.”

“I am so happy to hear that Ellipsys has received FDA approval so other patients like me can benefit from this type of fistula. I had no surgery and have no scar. Amazing when I compare my AVF with others in the dialysis unit. There is no comparison.”
Theresa Torres, Tempe AZ

“I have a family member on
dialysis and his arm is all lumpy
and bumpy, not mine.”

My arm looks great! After my procedure, I had a bandage placed and my daughter took me to lunch.”
Paulette, Richmond, VA
Finally, hemodialysis access that’s
minimally invasive and patient friendly.
No incisions. No sutures. This surgery-free, permanent solution is a long-awaited and welcome change for hemodialysis patients. The common surgical procedure for fistula creation has remained the same for half a century. But all that’s changed. Unlike surgery, the Ellipsys System uses an endovascular approach that leaves the skin scar-free

Book a free consultation with Dr Nwobi to find out how Ellipsys EndoAVF can make
your hemodialysis treatments easier, safer and more efficient.

How it Works
Guided by ultrasound, a tiny needle accesses the vein
Once the needle reaches the artery, a guide wire is put into place. The needle is removed and a sheath is advanced into the artery (not shown)
Next, the Ellipsys catheter is moved through the sheath, with the catheter tip positioned inside the artery
The catheter is closed and activated – creating a permanent connection between the vein and artery. Sutures are not required.
Finally, the catheter is removed resulting in AVF flow.
Upon completion of the procedure, the patient leaves with just a band aid.
Ellipsys Percutaneous Fistula Creation vs.
Surgical Fistula Creation

Maturation failure, risk of infection, and scars are common concerns for surgically-created fistulas, but the techniques now being utilized in percutaneous fistula creation help to minimize and eliminate some of those concerns for patients.

Surgical Fistula

Traditionally, vascular specialists or vascular surgeons have created fistulas through minor surgery. An incision is made in the arm, called an “open-approach,” and the surgeon or specialist will identify the vessels, create the AV fistula by suturing the artery and vein together, and finally suture the skin closed. The suture or clips in the wound will remain in place for 7-10 days and will then be removed.

Ellipsys Percutaneous
Fistula Creation

Percutaneous fistula creation is a minimally invasive procedure that requires only regional or local anesthesia with a procedure time of less than 30 minutes. Additionally, because the procedure uses an endovascular (within the vessels) approach, it leaves the vasculature and tissue around the AV fistula undisturbed, improving healing time and overall outcomes. Depending on which percutaneous fistula creation method is used, the patient will be left with one or two small puncture sites as opposed to a lengthy scar common with traditional surgical fistula creation.
Skip Surgery. Go Directly to Vascular Access.
We Are Different
Why Choose Us


Focusing on your overall health, we tailor our treatment plans towards conservative management, involving minimally invasive therapy and surgical options.

Dedicated and
Caring Team

We provide excellent guidance and education for our patients, ensuring they have a thorough understanding of their vascular health.

Pricing Packages

Not having insurance is not a problem. Our affordable in-office financing options provide flexible payment plans that are inclusive of all tests.

State of the
Art Facility

Our full range of medical, laser & surgical options, include the latest diagnostic equipment for providing the highest possible vascular care.

About Us

Meet Dr. Obinna Nwobi

Patients in Central Florida turn to trusted vascular surgeon Obinna Nwobi, MD, for all their vein and artery concerns. His practice, Vein Health Clinics, has two convenient locations in Oviedo and Winter Haven, Florida. While completing a double major in English and chemistry in his undergraduate studies at East Tennessee State University, the field of vascular surgery called to Dr. Nwobi.

He then earned a master’s degree in public health from Johns Hopkins Bloomberg School of Public Health in Maryland, focusing on health care management and international health. He went on to earn his medical degree from the University of Tennessee College of Medicine. Dr. Nwobi completed his internship and residency in general surgery at the University of Medicine and Dentistry of New Jersey.

After completing his fellowship in vascular surgery at the Vascular Group PLLC and Albany Medical Center in New York, Dr. Nwobi chose to practice medicine in an underserved area of Florida.

Throughout his career, Dr. Nwobi has helped patients through the Indian Health Services system and Veterans A airs Hospital, while continuing to work at several large private and public hospitals.Dr. Nwobi is a Registered Physician in Vascular Interpretation, which provides him with specialized training in reading and interpreting all types of vascular ultrasounds. He is also board certified in vascular surgery. As a physician who’s passionate about serving the underserved, Dr. Nwobi dedicates as much time as possible to medical missions.

He has helped countless patients in Nigeria and provided medical care for patients who cannot a ord treatment. Because Dr. Nwobi is genuinely passionate about patient care and has extensive expertise in the most complex vascular conditions, he is trusted throughout Central Florida.

What Patients Say About
Dr. Obinna Nwobi
Click to hear Obie’s story when his legs were saved after he was told before that would never be able to be treated
Click to hear Leida’ story – how her life has been since she got her venous disease that has been with her for over 20 years treated
Click to hear Hannah’s story when she’s able to run again shortly after her varicose vein disease was treated
Click to hear Eric’ story – how his chronic venous insufficiency was treated quickly and painlessly
Frequently Asked Questions
  • Provides a minimally invasive percutaneous AV fistula without an implant
  • Is a minimally invasive procedure
  • Utilizes upper arm AVF for hemodialysis
  • Is ultrasound image guided
  • Enables single catheter venous access
  • Enables intravascular sealing of the vein and artery
  • Leaves the vasculature at the AVF site undisturbed
  • Requires only regional or local anesthesia
  • Avoids technique-dependent vessel suturing
Prior to the procedure, you will have on office visit with history, physical exam, and ultrasound of your arm. Bring all of your medicines or a complete list of your current medications including dose and frequency to the office visit. If you are not currently taking an anti-platelet medication (like Aspirin) you may be started on one prior to your procedure. On the day of your procedure arrange for transportation to and from your procedure. You will be sedated and/or have a nerve block during the procedure and are unable to drive.

The procedure is performed in an operating room with special ultrasound and X-ray equipment. You will lay on your back with your arm out to your side. Your arm will be sterilely scrubbed with antiseptic solution and draped for the procedure. Your skin will be numb from a nerve block or local anesthetic (numbing medication) will be administered. A vein at the elbow will be entered (like for drawing blood) and the procedure will be performed through this single venous access. There may be mild discomfort during the procedure. The procedure will take approximately 30 minutes. Once the procedure is completed pressure will be placed at the venous access site to stop any bleeding and a small bandage will be placed. You will return to your pre-procedure room for 60 to 90 minutes of recovery. 

  • Relax–don’t do anything stressful.
  • You may eat and drink as usual.
  • For 24 hours: don’t drive or use heavy machinery, don’t make any legal or financial decisions, don’t sign any important papers, don’t drink alcohol, and don’t lift anything any heavier than a 2-liter bottle of soda, don’t wear clothing that will press against your wound. After 24 hours post-procedure you can return to usual activities.

You may have some mild pain, swelling, and bruising at your puncture site.  This is normal.

You will not have any internal or external stitches. You will have a small bandage covering your needle puncture site.

  • Any worsening redness or swelling around the puncture site
  • Warmth around the puncture site
  • Pus present or oozing from the puncture site
  • Lack of pulse or weak pulse at the puncture site
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Winter Haven


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