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.


N is for nitinol

What’s in a name?

We were very intentional when we named our nitinol stone extractors, right down to each device’s unique spelling. The uppercase N in each name speaks to the innovative technology that is nitinol. Each device’s name also has a double meaning as an action verb that directly speaks to its capabilities.

Encircle (v.) – to surround

The NCircle® Nitinol Tipless Stone Extractor, introduced 20 years ago, was the very first extractor to feature nitinol construction. It was also the first tipless basket design. Because it is truly tipless, you can position the basket flush with the mucosa to surround a stone. To strengthen our game-changing NCircle offering, we have a Delta Wire® option that provides increased radial force, and a helical design that may aid in stone capture.

Encompass (v.) – to enclose

The multiwire design of the NCompass® Nitinol Stone Extractor produces a netting effect that helps you enclose smaller fragments and could prevent stone migration.

Engage (v.) – to secure

The grasper-like design of the NGage® Nitinol Stone Extractor allows you to directly target a stone and secure it for removal or reposition and release it to be fragmented.

Entrap (v.) – to catch

 The NTrap® Stone Entrapment and Extraction Device features a bowl-like basket that is designed to catch fragments and minimise stone migration during lithotripsy.

Enforce (v.) – to obtain with force

The NForce® Nitinol Helical Stone Extractor is constructed of Delta Wire to help you obtain stones with increased radial force and greater radial dilation.

The perks of nitinol

Taking it a step further, we offer a trio of options for percutaneous procedures that borrow from our flexible basket designs and incorporate a rigid, stainless steel cannula.

At Cook, nitinol is the name of the game. Take action to extract, and choose from our 26 configurations.

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.