Department of Otolaryngology-Head and Neck Surgery, Louisiana State University Health Sciences Center School of Medicine, New Orleans, Louisiana, USA.
Department of Biological and Agricultural Engineering, Louisiana State University College of Engineering, Baton Rouge, Louisiana, USA.
Otolaryngol Head Neck Surg. 2020 Mar;162(3):343-345. doi: 10.1177/0194599820901684. Epub 2020 Jan 21.
We describe a device engineered for realistic simulation of myringotomy and tympanostomy tube insertion that tracks instrument placement and objectively measures operator proficiency. A 3-dimensional computer model of the external ear and cartilaginous external auditory canal was created from a normal maxillofacial computed tomography scan, and models for the bony external auditory canal and tympanic cavity were created with computer-aided design software. Physical models were 3-dimensionally printed from the computer reconstructions. The external auditory canal and tympanic cavity surfaces were coated with conductive material and wired to a capacitive sensor interface. A programmable microcontroller with custom embedded software completed the system. Construct validation was completed by comparing the run times and total sensor contact times of otolaryngology faculty and residents.
我们描述了一种用于真实模拟鼓膜切开术和鼓室置管术的设备，该设备可跟踪器械放置位置并客观测量操作人员的熟练度。从正常的颌面计算机断层扫描创建了外耳和软骨外耳道的三维计算机模型，并使用计算机辅助设计软件创建了骨性外耳道和鼓室模型。物理模型是从计算机重建中 3 维打印的。将导电材料涂覆在外耳道和鼓室表面，并将其连接到电容式传感器接口。带有定制嵌入式软件的可编程微控制器完成了整个系统。通过比较耳鼻喉科医师和住院医师的运行时间和总传感器接触时间来完成结构验证。
