一种用于资源有限环境的基于潜望镜的3D打印间接喉镜：一项非随机观察性人体模型试验
A periscope-based, 3D printed indirect laryngoscope for resource limited settings: a non-randomized observational manikin trial.
作者信息
Schmitt Phillip R, Maguire Samantha, Sternlicht Eliza, Quinn Austin M, Fisher Whit, Beck Andrew
机构信息
Warren Alpert Medical School, Brown University, Providence, RI, USA.
School of Engineering, Brown University, Providence, RI, USA.
出版信息
Int J Emerg Med. 2025 Aug 20;18(1):156. doi: 10.1186/s12245-025-00962-9.
BACKGROUND
In the United States and other resource-rich settings, video laryngoscopy is often favored for emergency intubation over direct laryngoscopy due to ease of use and improved performance in difficult airways. Video laryngoscopes pose a significant cost barrier against adoption in low- and middle-income countries (LMICs). In this study, we designed and tested a low-cost, 3D printable, periscope-based laryngoscope that achieves an indirect view of the vocal cords without the use of a video camera. The absence of expensive video components allows this device to be manufactured for $4.41 USD, making it well-suited for resource-limited settings.
METHODS
The periscope-based laryngoscope was manufactured from polylactic acid (PLA) filament using a 3D printer. Manikin testing of the laryngoscope was performed by providers ranging from medical students to experienced physicians using the high fidelity Laerdal SimMan. The novel laryngoscope was compared to commonly available direct and video laryngoscopes, and intubation times and first-pass success rates were recorded.
RESULTS
A total of 121 trials were performed. In experienced intubators, faster intubation times were seen in the direct and periscope-based laryngoscopes compared to video laryngoscopes. Mean intubation times for experienced intubators were as follows: Direct Laryngoscope = 17.45 s, Video Laryngoscope = 23.34 s, and Novel Periscope-based Laryngoscope = 11.31 s, with statistical significance (p < 0.001) found between the Video and Periscope-based laryngoscope times. 100% of trials resulted in successful intubation of the trachea.
CONCLUSION
The periscope-based laryngoscope yielded intubation times and first-pass success rates that compare favorably to direct and video laryngoscopes, and it can be readily manufactured in multiple environments at a low price point without proprietary industrial technology. Next steps include human clinical trials and regulatory approvals prior to clinical adoption of the novel device.
背景
在美国和其他资源丰富的地区，由于使用方便且在困难气道中表现更佳，视频喉镜在紧急气管插管时往往比直接喉镜更受青睐。视频喉镜对于低收入和中等收入国家（LMICs）而言，成本过高，阻碍了其推广应用。在本研究中，我们设计并测试了一种低成本、可3D打印的、基于潜望镜的喉镜，该喉镜无需使用摄像机即可间接观察声带。由于无需昂贵的视频组件，该设备的制造成本仅为4.41美元，非常适合资源有限的环境。
方法
基于潜望镜的喉镜由聚乳酸（PLA）长丝使用3D打印机制造。从医学生到经验丰富的医生，使用高保真Laerdal SimMan对该喉镜进行人体模型测试。将这种新型喉镜与常用的直接喉镜和视频喉镜进行比较，并记录插管时间和首次通过成功率。
结果
共进行了121次试验。在经验丰富的插管者中，与视频喉镜相比，直接喉镜和基于潜望镜的喉镜的插管时间更快。经验丰富的插管者的平均插管时间如下：直接喉镜=17.45秒，视频喉镜=23.34秒，新型基于潜望镜的喉镜=11.31秒，视频喉镜和基于潜望镜的喉镜之间的时间差异具有统计学意义（p<0.001）。100%的试验均成功插入气管。
结论
基于潜望镜的喉镜的插管时间和首次通过成功率与直接喉镜和视频喉镜相比具有优势，并且无需专有工业技术即可在多种环境中以低成本轻松制造。下一步包括在该新型设备临床应用之前进行人体临床试验和监管审批。
Zotero 插件