Choose your Region

Are you sure you want to proceed?

You will be leaving the Cook Medical website that you were viewing and going to a Cook Medical website for another region or country. Not all products are approved in all regulatory jurisdictions. The product information on these websites is intended only for licensed physicians and healthcare professionals.


Stop wasting your time and resources chasing stones.

Have you ever focused in on an intact stone or rogue fragment during lithotripsy and had it migrate out of view? Retropulsion, however it occurs, can prolong your procedures.1 That’s where we come in. Cook Medical has several innovative products that specifically address this frustrating phenomenon.

During laser lithotripsy, the very pulse of energy that is intended to break the stone can also cause the stone to migrate out of your field of vision. With that in mind, the H-30® Holmium Laser System offers a variable pulse width. In two studies, retropulsion was reduced and equivalent fragmentation occurred when a longer pulse width was used.1,2

You can bust or dust a stone with the H-30 system. Watch a side-by-side comparison of the laser system’s short and long pulse widths.


Another way to keep the stone where you can see it is to block its path of retreat. This can be accomplished by using the UPJ Occlusion Balloon Catheter or the NTrap® Stone Entrapment and Extraction Device.

UPJ Occlusion Balloon Catheter

UPJ Occlusion Balloon Catheter

As its name indicates, the balloon catheter is used to occlude the ureteropelvic junction (UPJ). This can help you prevent stone fragments from entering the ureter during percutaneous lithotripsy.

Similarly, the NTrap device, in addition to being used as an extractor, can be an effective tool that blocks the movement of the stone.3

NTrap Stone Entrapment and Extraction Device

NTrap Stone Entrapment and Extraction Device

A 2013 study, in which the NTrap device was evaluated, concluded that “it is cost-effective to use an antiretropulsion device at a retropulsion rate of greater than 6.3%.”4

We see each day and each patient as an opportunity to make a difference. Helping you minimise migration is just one of the ways that Cook Medical can bring you value.

For more information on the products listed in this post, please see their instructions for use.
H-30 Holmium Laser System
UPJ Occlusion Balloon Catheter
NTrap Stone Entrapment and Extraction Device

1Kang HW, Lee H, Teichman JM, et al. Dependence of calculus retropulsion on pulse duration during Ho: YAG laser lithotripsy. Lasers Surg Med. 2006;38(8):762-772.
2Finley DS, Petersen J, Abdelshehid C, et al. Effect of holmium:YAG laser pulse width on lithotripsy retropulsion in vitro. J Endourol. 2005;19(8):1041-1044.
3Lee MJ, Lee ST, Min SK. Use of NTrap during ureteroscopic lithotripsy for upper ureteral stones. Korean J Urol. 2010;51(10):719-723.
4Ursiny M, Eisner BH. Cost-effectiveness of anti-retropulsion devices for ureteroscopic lithotripsy. J Urol. 2013;189(5):1762-1766.

Thank You for Your Interest in Cook Medical's Products

The product information on this website is intended only for physicians and healthcare professionals licensed in the European Union (except France), the United Kingdom, Switzerland, Norway, Iceland, Turkey, and Liechtenstein. If you are located in another global region, please click on the regional flag at the very top of the webpage and choose your region from the drop-down options.

If your region is not listed, visit our How to Order section for more information.

Information provided on this site is not intended to be professional medical advice. Product Instructions for Use (IFU) should be consulted before use of any product.