Cast21 Inc.

Cast21 is an FDA-listed medical device manufacturer specializing in innovative orthopedic immobilization systems designed as alternatives to traditional plaster and fiberglass casts. The company's flagship product is a lightweight, thermoplastic elastomer-based immobilization net that is filled with fast-curing liquid resin, hardening into a custom-molded orthopedic cast in approximately three minutes. The system is waterproof, breathable, and skin-friendly, addressing key limitations of conventional casting methods. Cast21's immobilization nets are suitable for patients across all age groups—pediatric, adult, geriatric, and athletic populations—and are applicable to a broad range of orthopedic injuries including fractures and sprains. The device requires no special equipment for application and eliminates the need for cast saws during removal, streamlining clinical workflows. Cast21 targets orthopedics, sports medicine, pediatrics, family medicine, and urgent care settings, emphasizing improved patient comfort, faster application, reduced clinical time, and enhanced reimbursement potential.