A Medical Pressure Sensor for Multi-Pressure Mode and Multi-Media Measurement

This study presents a medical-specific pressure sensor seamlessly outfitted with standard medical devices or instruments. Its customized Luer configuration enables the free switch in gauge, differential and relative pressure measurement modes. The MEMS pressure sensing chip is packaged to work robustly in both gaseous and liquid biological environments. Experimental results demonstrate that the developed pressure sensor can accurately respond in air, saline, blood, and thrombus media. The sensitivity remains consistent across various pressure measurement modes and media. Compared to disposable pressure transducers available in the market, this compact device serves as a universal tool for medical pressure monitoring which means it can meet a variety of clinical physiological pressure measurement needs.