SJ Medical
SJ Medical
Precision-engineered components, access devices, and therapeutic interventional products manufactured under ISO 13485 compliance.
The global minimally invasive surgical (MIS) market is experiencing a profound structural shift. As healthcare providers worldwide prioritize shorter hospital stays, reduced post-operative complications, and lower total cost of care, the demand for sophisticated endoscopic and interventional medical devices has accelerated. Original Equipment Manufacturers (OEM) and Original Design Manufacturers (ODM) serve as the cornerstone of this evolution, translating complex clinical requirements into mass-producible, regulatory-compliant medical technologies.
Developing high-performance endoscopic equipment requires multi-disciplinary mastery—combining micro-optics, mechanical articulation, sensor integration, biocompatible polymer extrusion, and high-definition signal processing. As clinical applications expand from diagnostic visualization to therapeutic interventional procedures (such as ERCP, ESD, and peripheral vascular cannulation), equipment manufacturers must deliver exceptional torqueability, column strength, pushability, and optical clarity within sub-millimeter footprints.
Clinical & Engineering Insight: Transitioning from traditional reusable endoscopes to single-use endoscopic platforms eliminates hospital-acquired cross-contamination risks while reducing reprocessing overhead. Contract manufacturing partners must guarantee sub-micron precision machining, sterile cleanroom assembly, and flawless optical calibration across high-volume production cycles.
The convergence of digital imaging, AI, and micro-interventional catheters is redefining the endoscopic landscape. OEM/ODM partners are required to stay ahead of dynamic technological shifts. Key technological vectors currently driving the industry include:
Transitioning from complex fiber-optic bundle transmission to micro CMOS sensors mounted directly at the distal tip. This allows ultra-compact distal diameter profiles down to 1.0mm while yielding 4K UHD resolutions, expanded dynamic range, and superior color fidelity.
Eliminating infection vectors associated with multidrug-resistant pathogens (e.g., CRE infections during duodenoscopy). High-volume OEM manufacturing must balance cost-effective micro-molding with uncompromising mechanical stability.
Integrating multi-spectral illumination (Narrow Band Imaging - NBI) and real-time machine learning algorithms for automatic polyp detection, tissue characterization, and margin assessment during minimally invasive interventions.
Fusing endoscopic vision with endovascular technique: micro-guidewires, balloon angioplasty, atherectomy accessories, and target drug-delivery shafts passing seamlessly through working channels.
Hangzhou SJ Medical Co., Ltd. was established in 2015 and is dedicated to the research, development, manufacturing, and commercialization of vascular interventional medical devices. The company focuses on both cardiovascular and peripheral intervention fields, striving to provide safe, reliable, and innovative solutions for healthcare providers worldwide.
Over the years, SJ Medical has developed a comprehensive product portfolio covering key areas of vascular intervention. Its offerings span from various types of balloon catheters for coronary and peripheral applications to supporting access and diagnostic devices, as well as advanced stent systems. Through continuous innovation and strong R&D capabilities, the company has obtained multiple patents and international certifications, laying a solid foundation for sustainable growth in both domestic and global markets.
SJ Medical operates a modern manufacturing facility with a total area of approximately 5,000 square meters. The factory is built in accordance with GMP standards and features a high-standard cleanroom environment, including a million-class clean workshop with localized hundred-class areas for critical processes.
The company is supported by a highly experienced technical team, many of whom have been engaged in the medical device industry for decades. Under the leadership of senior engineers, SJ Medical maintains strict quality control and continuously improves its manufacturing processes to ensure product reliability and consistency.
SJ Medical focuses on the development of vascular interventional devices designed for both coronary and peripheral procedures. Its product range integrates interventional access systems, diagnostic catheters, and therapeutic devices, forming a complete solution for minimally invasive vascular treatments. Each product is developed with an emphasis on precision, safety, and clinical performance, aiming to support physicians in achieving optimal procedural outcomes.
The company’s products are widely applied in minimally invasive procedures involving both coronary and peripheral vascular systems. They play an important role in the diagnosis and treatment of vascular diseases, helping to improve procedural efficiency while enhancing patient safety and recovery.
SJ Medical strictly adheres to international quality standards and regulatory requirements. The company has obtained CE certification, ISO 13485 quality management system certification, and CFDA approval, along with free sale certificates, demonstrating its strong commitment to product quality and compliance.
The company is equipped with advanced production and inspection systems, including precision balloon forming equipment, laser welding and marking technologies, and comprehensive laboratory testing facilities. These capabilities ensure high levels of manufacturing accuracy, product consistency, and full-process quality control.
SJ Medical has established long-term partnerships with clients across Europe, Asia, the Middle East, and Africa. Its products are currently distributed in countries such as Finland, Italy, Spain, France, the Netherlands, India, Indonesia, Turkey, and Egypt, among others. The company continues to expand its international footprint and strengthen its global presence.
SJ Medical is committed to providing comprehensive and professional services throughout the entire customer journey. From pre-sales consultation and technical support to efficient order processing and responsive after-sales service, the company ensures that every customer receives timely assistance and reliable solutions.
Collaborating with an OEM/ODM provider requires an intricate understanding of Design for Manufacturability (DFM). In the realm of advanced interventional and endoscopic equipment, tiny variations in extrusion wall thickness, braiding pitch, or optical lens alignment can result in procedural failure. SJ Medical mitigates risk through a rigorous 4-Stage Turnkey Framework:
Initial CAD/CAM micro-modeling, material selection (Pebax, TPU, Nitinol, Stainless Steel 316L), optical flux simulation, and rapid 3D prototyping for ergonomic and clinical validation.
Custom precision mold creation, micro-extrusion die configuration, laser bonding parameters optimization, and balloon blow molding calibration within localized 100-class cleanroom setups.
Comprehensive ISO 10993 biocompatibility testing, burst pressure testing, tracking force evaluations, fatigue resistance, and accelerated aging shelf-life verification.
High-volume automated assembly, inline vision inspection, customized white-label packaging, Ethylene Oxide (EtO) sterilization, and international regulatory file transfer.
Navigating global healthcare regulatory landscapes presents major hurdles for brand owners. Whether introducing a new diagnostic sheath in Europe or registering an advanced intervention balloon catheter under US FDA 510(k) or EU MDR (2017/745), compliance documentation must be flawless.
SJ Medical provides full technical dossier support, including Design History Files (DHF), Device Master Records (DMR), and Risk Analysis according to ISO 14971. Our ISO 13485 certified quality management system ensures total traceability from raw polymer resin sourcing down to individual sealed unit shipments delivered to distributors across Europe, Asia, and Africa.
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