Description

The Dormia Stone Extractor is a specialized medical device designed for the precise retrieval of stones and stone fragments from the urinary tract. It is primarily used in endoscopic procedures such as ureteroscopy and cystoscopy, providing a reliable solution for healthcare professionals in managing urinary tract stones. Some versions are also suitable for use in the biliary ducts during procedures like endoscopic retrograde cholangiopancreatography (ERCP).

Key Features

• Basket Design: Available in both tipless and tipped configurations, the basket is constructed from nitinol wire, a nickel-titanium alloy known for its flexibility and shape retention. This design minimizes tissue trauma while ensuring secure stone capture. Various basket designs, including flat wire, twisted wire, and multiwire mesh, offer versatility in clinical scenarios.
• Sheath and Handle: The device features a Teflon-coated sheath for smooth navigation and an ergonomic handle designed for single-handed use. The handle is removable, enhancing ease of operation.
• Single-Use and Sterility: Each extractor is a single-use, sterile device, available in multiple sizes and lengths to accommodate different endoscopic tools and clinical needs. Basket sizes range from approximately 8 mm to 15 mm, with some models offering a working channel for simultaneous laser fiber use.

Compatibility and Packaging

The Dormia Stone Extractor is compatible with rigid, semi-rigid, and flexible ureteroscopes, depending on the model. It is supplied sterile and individually packaged, with some versions available in packs of five. Reuse or re-sterilization is not recommended to maintain device integrity and patient safety.

Contraindications and Precautions

The device is contraindicated for use outside specified endoscopic procedures and in patients with known allergies to its materials. It should not be used in cases of untreated urinary tract infections, uncontrolled bleeding, or in the presence of malignant tumors in the urinary tract. Proper training and experience are essential for physicians using this device to avoid potential complications such as tissue trauma or device breakage.

Storage and Maintenance

Proper storage in original packaging, away from sunlight and chemicals, is crucial. The device should be inspected for damage and expiration before use. Disposal should follow medical waste regulations after single use.

Additional Features

Some models include a lateral Luer-Lock connection for contrast injection, enhancing procedural flexibility. The Dormia Stone Extractor is suitable for use in a wide range of patients, including minors and, with caution, pregnant or breastfeeding women, depending on the specific model and patient condition.