Objective To design a tracheal intubation device with magnetic positioning and navigation based on static magnetic source pass-through characteristics to improve the success rate of tracheal intubation under difficult glottic exposure conditions.Methods The magnetic positioning and navigation tracheal intubation device was composed of flexible magnetic positioning collar,main controller,magnetic guide bar and navigation magnet.Through hardware design and software programming,STM32F103C6T6 microcontroller was token by the main control unit as the core.The magnetic induction intensity data collected by the magnetic positioning collar was used to locate the tip of the flexible magnetic guide tube using the magnetic positioning algorithm based on the static magnetic source pass-through characteristics.The alarm function was realized through the programmable light source and the buzzer,and the magnetic navigation was realized through the navigation magnet to induce the tip of the magnetic guide strip to respond to the magnet.Results With the assistance of magnetic positioning and navigation system,the success rate of tracheal intubation operated by medical students without anesthesia background under simulated difficult glottic exposure conditions was significantly improved compared to without magnetic positioning and navigation system,the difference was statistically significant(P＜0.05).And the average intubation time was kept within the safe time limit of tracheal intubation.The difference was statistically significant(P＜0.05).Conclusion The magnetic positioning navigation tracheal intubation device designed in this study is easy to operate and shows advantages in tracheal intubation under difficult glottic exposure conditions.It is expected to effectively improve the success rate of tracheal intubation in difficult airway,reduce the occurrence of complications,improve medical quality and safety,and promote the high-level development of China's life emergency system.
关键词
静态磁源通过特性/磁定位脖套/磁定位/磁导航/气管插管/导航系统/医疗质量安全/生命急救体系
Key words
static magnetic source pass-through characteristics/magnetic positioning collar/magnetic positioning/magnetic navigation/tracheal intubation/navigation system/medical quality and safety/life emergency system
维普
万方数据