In the modern medical device industry, purified water plays a critical role throughout the entire lifecycle of medical instruments—from the precision manufacturing of minimally invasive catheters to the sterile cleaning of surgical tools, from the preparation of in vitro diagnostic reagents to the factory testing of implantable devices. It serves as an "invisible cornerstone" ensuring the safety and functionality of these devices. HeShuo has deep expertise in water treatment and understands the stringent requirements for purified water in medical devices, which must meet the foundational standards of "no impurities, no microorganisms, and no pyrogens," while also adapting to the specific process characteristics of different devices to ensure compliance.
In the manufacturing process of medical devices, the purity of purified water directly affects product performance. For example, when producing high-precision endoscopes, purified water with a resistivity of ≥15MΩ·cm is required to clean optical lenses; any trace particles or ions in the water can cause scratches on the lens, leading to blurry images. In the production of disposable syringes, purified water is used for mold cooling and component rinsing, and if the TOC (Total Organic Carbon) exceeds 0.5 mg/L, it may lead to plastic component aging, compromising syringe sealing. HeShuo's customized purified water equipment employs a "dual-stage RO + EDI + precision filtration" process, maintaining conductivity at ≤0.1μS/cm and TOC at ≤0.3 mg/L, perfectly aligning with ISO 13485 quality management system requirements for medical devices.
In the cleaning and disinfection phase, purified water is crucial for minimizing cross-contamination risks. Reusable instruments, such as surgical tools and dental examination equipment, undergo pre-cleaning, enzymatic cleaning, and final rinsing with purified water. If the rinse water contains chlorine ions or microorganisms, it can lead to rusting and residual contaminants on the instruments, increasing postoperative infection risks. HeShuo has developed purified water equipment equipped with an 80°C hot water circulation disinfection system and an online microbial monitoring module (with total colony count ≤10 CFU/mL), using 316L stainless steel pipes and seamless welding to prevent biofilm growth, ensuring every drop of rinse water complies with the "Technical Specifications for Cleaning and Disinfection of Medical Devices."
Furthermore, the stability of purified water is equally important in the maintenance of medical devices and the preparation of reagents. When hospitals service ultrasound probes, purified water is used to clean the coupling agent on the probe's surface to prevent clogging of the chip. In the production of in vitro diagnostic reagents, fluctuations in water quality can lead to decreased sensitivity and distorted test results. HeShuo's intelligent control system continuously adjusts parameters like water temperature and pressure, coupled with an emergency water supply system, to ensure 24/7 stable water quality, safeguarding the quality of the entire medical device supply chain.