Allen Y. Wang/王奕嵐
ORC hemostatic aggregates are a next-generation, resorbable hemostat built from oxidized regenerated cellulose (ORC) engineered into an aggregate form. They combine a proven biochemical mechanism with new material architecture and scalable manufacturing to deliver rapid bleeding control, predictable degradation, and improved handling for surgeons. The development path moved from bench discovery through iterative formulation and animal testing to clinical translation and commercial readiness. Their effectiveness is primarily attributed to their unique aggregate structure, providing high surface area, and localized acidic environment, which promotes platelet adhesion, blood protein concentration, local bactericidal effect, and accelerated clot formation, when it is in contact with blood. This study explores the design, mechanism, and clinical performance of ORC hemostatic aggregates, with emphasis on their physicochemical properties, biocompatibility, and degradation behavior. Compared with conventional sheet-based formulations and existing hemostatic powders, preclinical and clinical evaluations have demonstrated ORC hemostatic aggregates provide more rapid, targeted and durable hemostasis, minimal inflammatory response, and safe absorption. Overall, ORC hemostatic aggregates represent an effective and versatile adjunct in modern surgical hemostasis, offering advantages in both open and minimally invasive procedures, including robotic procedures. Finally, the presenter recounts the innovation journey that enabled translation of ORC aggregates from concept to clinical use.