UPJ obstruction

new treatment

no organ damage

nor skin scars

fast recovering time

This site will show you a minimal invasive

 way to treat your UPJ obstruction.

There are a variety of accepted treatments for primary or secondary ureteropelvic junction (UPJ) obstruction.

  • Although open pyeloplasty remains the gold standard, several endoscopic and laparoscopic techniques are available as alternative treatment options.

These techniques include:

  • Laparoscopic transperitoneal pyeloplasty,
  • Antegrade endoscopic endopyelotomy and endopyeloplasty,
  • Retrograde endopyelotomy, and
  • Retrograde balloon dilatation alone.

Open pyeloplasty is an invasive, dismembering treatment with a mean postoperative hospital stay of 6 days.

Laparoscopic and endoscopic techniques are less invasive than open pyeloplasty but they are associated with a long learning curve for the operator and a long operation time (mean, 245 minutes).

We devised a new method for treating primary UPJ obstruction using a detachable inflatable spacer balloon positioned stream up through the bladder. First the obstruction is dilated with a special dilatation balloon. After doing that a double J catheter is placed followed by the  spacer ballon catheter next to the double J.

The reason for developing a new method to treat UPJ obstruction was to try to help patients using a minimally invasive, straightforward, and fast procedure with a fast recovering time and without  organ  or skin scars.

The procedure can be done in 30 minutes.

Upj obstruction treated by a spacer balloon


UPJ obstruction

Spacer balloon


We work with the very best. We are proud of our partners, who work with us to deliver the best in our products and heath care solutions.

UPJ obstruction

The intended use of the Overtoom balloon is to treat ureteral strictures.

Specially strictures causing  UPJ obstruction.

Read more

Bricker bladder

The Overtoom balloon has successfully been used to treat ureteral strictures of the anastomosis with Bricker bladders.

The balloon has also been used successfully as a kidney blocker to bypass a leaking Bricker bladder.

Read more

Vesico vaginal fistula

New treatment option by using Overtoom balloons as kidney blockers to bypass the bladder.

Vesico vaginal fistula. Disaster for women.

Read more


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Our mission is to find new solutions with innovative medical devices for less invasive treatments  with fast recovering times and less complications.