Over the past two years, one of our long-term partners, a urological device manufacturer based in Southeast Asia, completed a full material upgrade for their double J ureteral stents by switching to our medical-grade TPU. Their experience reflects why more medical producers are investing in high-performance purpose-built polymer raw materials.
Before cooperation, the factory relied on general medical TPU available from local suppliers. During clinical feedback collection, they received repeated complaints: some stents became overly stiff after one month of implantation, while certain batches displayed uneven surfaces after ethylene oxide sterilisation. The unstable quality limited their market expansion, especially bids with private hospitals and overseas importers that require strict batch consistency.
After technical communication, they selected our TPU grade specially engineered for long-term indwelling ureteral stents. We first supplied lab samples for extrusion testing. The R&D team quickly noticed obvious improvements: tubing surfaces became smoother, thickness fluctuation reduced significantly, and far fewer broken tubes appeared during continuous production trials. Next came simulated urine immersion and radiation sterilisation testing. Test data confirmed mechanical properties remained stable throughout the target service cycle.
Once formal mass production began, their finished stent rejection rate dropped noticeably. The temperature-adaptive softness brought better patient feedback. They updated product brochures highlighting the imported medical TPU raw material, which became a powerful marketing advantage when negotiating with distributors. Within 12 months, their overseas order volume for ureteral stents grew steadily.
This case shows a clear logic: end users and hospitals increasingly pay attention to raw material quality of disposable medical devices. Generic polymers may lower short-term costs, yet hidden quality risks damage brand reputation. Purpose-developed medical TPU for ureteral stents balances reliable performance, processing friendliness and regulatory traceability.
Our team continues to optimise TPU formulas to satisfy evolving market demands, including grades compatible with anti-microbial modification and enhanced radiopaque versions. We welcome ureteral stent manufacturers, tubing extrusion factories and medical device developers worldwide to reach out for sample evaluation and technical consultation. Whether you plan new product development or raw material replacement for existing stent models, we can offer customised material recommendations according to your extrusion equipment, target stent specifications and target global markets.