Corporate Excellence & Innovation
Setting the global standard in interventional urology through relentless research and patented biomaterial engineering.
Chengdu Daxan Innovative Medical Tech Co., Ltd. is a Chengdu-based medical device company founded in 2016. As a vanguard in the medical technology sector, we have dedicated our extensive R&D resources to solving complex clinical challenges in urology. 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 globally.
Our commitment to innovation is driven by the precise needs of modern surgical environments. We understand that the interface between a medical device and human tissue is critical. By engineering surfaces that mimic biological properties, Daxan Medical bridges the gap between mechanical intervention and natural physiological healing, ensuring that healthcare professionals have access to the most reliable tools available.
The Hydrophilic Coated Double J Ureteral Stent
A masterpiece of biomedical engineering designed to optimize fluid dynamics and maximize patient comfort during urological interventions.
The Hydrophilic Coated Double J Ureteral Stent is a state-of-the-art medical device designed for endoscopic, minimally invasive, or open surgical procedures within the urinary system. This advanced stent architecture features the classic "Double J" pigtail curl at both ends, ensuring secure placement within the renal pelvis and the bladder, thereby preventing migration.
Its primary function is to provide effective internal drainage, prevent ureteral obstruction, and reduce complications associated with urate crystal accumulation. The stent is meticulously manufactured from high-quality medical-grade materials, sterilized using Ethylene Oxide (EO), and intended for single use to ensure optimal safety and performance. The integration of our proprietary hydrophilic coating transforms the stent's surface upon contact with aqueous environments (like urine), creating a super-lubricious, microscopic hydrogel layer that dramatically reduces friction.
Hydrophilic Coating
Activates instantly in fluid, creating a near-frictionless surface that eases insertion, minimizes mucosal trauma, and enhances patient tolerance.
EO Sterilized & Single Use
Strictly sterilized using Ethylene Oxide to eliminate pathogens. Designed for single-use to guarantee absolute safety and prevent cross-contamination.
Anti-Encrustation
The smooth, hydrated surface significantly inhibits the adhesion of bacterial biofilms and the accumulation of urate crystals, prolonging stent viability.
Medical-Grade Material
Constructed from highly biocompatible polyurethane blends that offer the perfect balance of radial strength for drainage and flexibility for comfort.
Deep Dive: Can a Ureteral Stent Improve Kidney Function?
Understanding the critical relationship between ureteral patency, internal drainage, and the preservation of renal health.
A frequently asked question in urology is: Can a ureteral stent improve kidney function? The definitive answer is yes, primarily when kidney function has been compromised by an obstruction. To understand how a hydrophilic coated ureteral stent acts as a lifesaver for the kidneys, we must explore the mechanics of the urinary tract and the pathophysiology of renal impairment.
The kidneys continuously filter blood to produce urine. This urine must travel freely down the ureters into the bladder. When a blockage occurs—due to kidney stones, strictures, tumors, or external compression—urine backs up into the kidney. This condition, known as hydronephrosis, leads to a rapid increase in hydrostatic pressure within the renal pelvis and calyces.
If this elevated pressure is not relieved, it compresses the delicate blood vessels supplying the nephrons (the functional units of the kidney). This ischemia (lack of blood flow) causes a drop in the Glomerular Filtration Rate (GFR), leading to acute kidney injury (AKI). Prolonged obstruction can cause irreversible scarring, nephron death, and permanent chronic kidney disease (CKD).
Relieving Hydronephrosis
By bypassing the obstruction, the double J stent immediately restores the flow of urine from the kidney to the bladder, instantly dropping the dangerous intra-renal pressure.
Restoring Glomerular Filtration
As pressure normalizes, blood flow to the nephrons is restored. The kidneys can resume their vital function of filtering toxins (like creatinine and urea) from the bloodstream, effectively improving GFR.
Preventing Permanent Damage
Timely insertion of a ureteral stent halts the progression of ischemic damage. In cases of acute post-renal obstruction, the stent doesn't just "improve" function; it rescues the kidney from permanent failure.
The Daxan Advantage in Renal Recovery
While any stent can theoretically bypass a blockage, the Daxan Hydrophilic Coated Ureteral Stent offers superior advantages for kidney recovery. Standard stents can become rapidly encrusted with urate crystals or bacterial biofilms, which can lead to secondary blockages, recurrent infections (pyelonephritis), and a reversal of kidney function improvement. Our advanced coating drastically reduces urate crystal accumulation, ensuring that the internal drainage lumen remains wide open and fully functional throughout the stent's indwelling time, providing uninterrupted protection for the kidneys.
Clinical Applications & The Science of Hydrophilic Coatings
Engineered for versatility across endoscopic, minimally invasive, and open surgical procedures.
Ureteroscopy (URS) & Lithotripsy
Following laser lithotripsy for kidney stones, fragments can cause swelling and temporary blockages. The stent facilitates the painless passage of "stone dust" and prevents ureteral strictures during the healing phase.
Malignant Obstructions
For patients with tumors compressing the ureters (e.g., cervical, prostate, or colorectal cancers), our stents provide a robust, long-term palliative solution to maintain kidney drainage and prevent uremia.
Surgical Reconstruction
Used extensively in open or robotic-assisted minimally invasive surgeries (like pyeloplasty or kidney transplants) to act as a scaffold, promoting proper tissue healing and preventing anastomotic leaks.
The Biomaterial Physics of Daxan's Coating
What makes the hydrophilic coating a game-changer? Traditional uncoated stents have a hydrophobic (water-repelling) surface. When inserted, they create high friction against the delicate urothelium, causing micro-abrasions, inflammation, and significant patient discomfort (often termed "stent syndrome").
Daxan's patented coating consists of highly cross-linked hydrophilic polymers. When exposed to urine, these polymers bind with water molecules, creating a microscopic, cushion-like layer of hydrogel. This reduces the coefficient of friction by up to 90% compared to uncoated devices. This super-lubricity allows the stent to glide effortlessly during deployment and removal. Furthermore, the bound water layer acts as a physical barrier. Bacteria and urate crystals struggle to find anchor points on this fluid-like surface, drastically reducing the risk of device-associated infections and encrustation.
Patient Care & Post-Operative Management
Ensuring optimal outcomes and minimizing discomfort while the stent is indwelling.
What Patients Can Expect
While the Daxan hydrophilic coating significantly reduces irritation, patients may still experience mild symptoms due to the physical presence of the Double J stent. Common, normal sensations include a slight urgency to urinate, mild flank discomfort during urination (due to urine refluxing up the stent), and occasionally a small amount of blood in the urine, especially after physical activity. These symptoms are generally manageable and temporary.
Best Practices for Stent Management
1. Hyper-Hydration: Patients are advised to drink 2-3 liters of water daily. High fluid throughput dilutes the urine, flushes out debris, and maximizes the anti-encrustation properties of the hydrophilic coating.
2. Activity Modification: Avoid heavy lifting or extreme physical exertion, which can cause the stent to rub against the bladder wall.
3. Timely Removal: Because our stents are intended for specific indwelling times, it is crucial to adhere to the urologist's schedule for removal or exchange to prevent complications.
Empowering Urologists, Protecting Patients
Chengdu Daxan Innovative Medical Tech Co., Ltd. continues to push the boundaries of medical device engineering. By choosing our Hydrophilic Coated Double J Ureteral Stent, healthcare providers are equipping themselves with a tool that not only ensures robust internal drainage but actively contributes to the preservation and improvement of kidney function. With uncompromising medical-grade materials, stringent EO sterilization, and industry-leading anti-encrustation technology, we deliver safety, efficacy, and comfort in every procedure.