摘要
目的探讨中耳传声机制研究中的中耳模型建立,为深入研究中耳传声机制,指导耳外科手术,尤其在听骨链重建方面建立一个接近活体情况的研究模型。方法采用17例新鲜尸体颞骨标本,利用激光多普勒振动仪,在声刺激和不同强度的机械刺激下,研究了鼓膜和镫骨底板的运动。结果鼓膜和镫骨底板的运动与活体测量的数据接近。结论新鲜颞骨标本可以用于不同方面中耳传声机制的研究。在鼓膜脐部的电机械刺激可以模仿声刺激。
OBJECTIVE To establish a model in or-der to deeply understand the mechanism of middle earsound transmission for ossicular reconstruction and forguidance of ear surgery. METHODS A temporal bonemodel was developed to measure the sound transmis-sion properties on movement of tympanic membraneand footplate of stapes on 17 fresh human temporalbones using scanning laser Doppler interferometry. Analgorithm had to be developed to simulate acousti-cal stimulation using electromechanical stimulation.RESULTS The measurements of tympanic membraneand footplate of stapes were almost identical to pre-vious publications analyzing live hu man subjects.CONCLUSION The experimental setup using fresh tem-poral bones can be used to investigate different aspectsof middle ear mechanics and to test the performance ofmiddle ear prosthesis. Electromechanical stimulationat the umbo can be used to simulate acousticalstimulation.
出处
《中国耳鼻咽喉头颈外科》
北大核心
2005年第6期359-361,共3页
Chinese Archives of Otolaryngology-Head and Neck Surgery
