Constructed from top-tier polyimide, the microcatheter excels in durability and chemical resistance, catering to a broad spectrum of demanding applications. Its notably reduced inner volume significantly diminishes fluid waste while optimizing delivery accuracy, crucial for procedures necessitating exact fluid dosages. The integration with a 4-way stopcock not only facilitates direct use with industrial-standard syringes but also introduces enhanced fluid direction control, eliminating the need for adapters and simplifying the setup process, thus increasing procedural efficiency.