🛡️ Understanding the Basics
An Ureteral Access Sheath (UAS) is a specialized medical device used primarily during retrograde intrarenal surgery (RIRS) and ureteroscopy. It acts as a protective conduit, establishing a continuous, dilated pathway from the exterior of the body directly into the renal pelvis or upper urinary tract.
Chengdu Daxan Innovative Medical Tech Co., Ltd. has revolutionized this tool by integrating suction negative pressure and hydrophilic coatings, ensuring that the process of navigating the delicate urinary tract is as atraumatic as possible.
⚙️ How Does a Urinary Sheath Work?
The mechanics of a ureteral access sheath involve a sophisticated interplay between material science and surgical utility.
1. Initial Insertion
The procedure begins with the placement of a guidewire into the ureter. The sheath, paired with an internal dilator, is passed over this guidewire. The hydrophilic coating is activated by moisture, creating a low-friction surface that allows the sheath to glide smoothly through the narrow ureteral lumen.
2. Establishing the Channel
Once positioned, the internal dilator is removed, leaving the hollow sheath in place. This creates a "protected tunnel." Surgeons can now pass endoscopes and laser fibers back and forth without repeatedly scraping or traumatizing the ureteral walls.
3. Pressure Management
Modern sheaths, like the Daxan Suction Sheath, utilize negative pressure. During irrigation, fluid is pumped into the kidney to maintain visibility. The sheath allows this fluid (and stone fragments) to exit, preventing high intrarenal pressure that could cause sepsis or kidney damage.
- Suction Negative Pressure: Integrated design for active stone fragment evacuation and pressure control.
- Bendable Tip: Enhanced maneuverability to navigate complex anatomical structures easily.
- Advanced Hydrophilic Coating: Reduces friction by up to 90%, significantly enhancing patient comfort.
- Kink-Resistant Structure: Reinforced coil design ensures the lumen remains open even under extreme angles.
- Single-Use Safety: 100% sterile packaging to eliminate cross-contamination risks.
This Hydrophilic Ureteral Access Sheath with Suction Negative Pressure is a professional urology device designed to establish a stable channel over a guidewire, facilitating the insertion of endoscopes into the renal pelvis safely.
💎 Innovative Product Features
Explore the technical advantages of the Daxan Hydrophilic Ureteral Access Sheath.
🚀 Why is a UAS Essential in Modern Surgery?
Enhanced Visibility
By providing a dedicated outflow tract, the sheath ensures a constant flow of irrigation fluid. This clears blood and debris, giving the surgeon a crystal-clear view of the kidney stones.
Ureteral Protection
Repeated instrument exchanges (moving the scope in and out) can cause ureteral strictures or tears. The sheath acts as a shield, protecting the delicate tissue from mechanical injury.
Efficiency & Speed
With a suction-capable sheath, stone "dusting" and "fragmenting" become much faster as small pieces are sucked out automatically, reducing the total operative time.
🏢 About Chengdu Daxan
Chengdu Daxan Innovative Medical Tech Co., Ltd. is a Chengdu-based medical device company founded in 2016. Leveraging our patented coating technology, we specialize in developing high-performance medical coatings and coated interventional urology consumables, providing safe and convenient solutions for urological care.
Our mission is to bridge the gap between advanced material science and clinical needs. By focusing on the "Coated Interventional" niche, we ensure that every Hydrophilic Ureteral Access Sheath we produce meets the highest global standards for safety and efficacy.
View Product CatalogTechnical Summary
The Hydrophilic Ureteral Access Suction Sheath with Negative Pressure is designed for urological procedures, providing a convenient and safe pathway for endoscopes or other instruments to access the urinary tract. Made from high-quality materials with a hydrophilic coating, it offers smooth and effortless insertion, significantly reducing friction and enhancing patient comfort during procedures.
This sterile, single-use device protects the ureter during repeated instrument exchanges and safeguards endoscopes from damage, making it an indispensable tool for the modern urologist.
❓ Frequently Asked Questions
Is the ureteral access sheath painful?
The procedure is performed under anesthesia, so the patient feels no pain. Post-operatively, the use of a hydrophilic-coated sheath like Daxan's reduces the likelihood of ureteral irritation compared to non-coated alternatives.
How does suction improve the procedure?
Traditional sheaths rely on passive flow. A suction sheath actively pulls out stone fragments and lowers intrarenal pressure, which is critical for preventing post-operative infections and shortening recovery time.
Can the sheath be reused?
No. To ensure maximum patient safety and prevent infection, Daxan ureteral access sheaths are designed as sterile, single-use devices.
Ready to Enhance Your Urology Practice?
Contact Chengdu Daxan Innovative Medical Tech Co., Ltd. for high-performance medical coatings and consumables.