Middle Ear Transfer Function for Sound Conduction Study of Middle Ear Implants:A New Method
Yueqi Li1
Xiao Qin2
Guodong Feng1
Zhiqiang Gao1
1.Department of Otolaryngology,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences,Beijing,China2.Department of Otolaryngology,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences,Beijing,China;Medical Science Research Center,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences,Beijing,China
摘要：Human temporal bone specimens are used in experiments to measure the sound transfer function of the middle ear.This standard method for the development of middle ear implants requires temporal bones that possess appropriate mechanical properties and structural stability and are free from pathological conditions.A laser Doppler vibrometer is commonly employed to measure the vibration of the stapes footplate.These experiments are typically conducted in the middle ear by leaving the inner ear intact,exposing the stapes footplate through the tympanic cavity,and directing the laser beam onto the footplate.However,previous studies have shown that the influence of inner ear impedance on the middle ear transfer function cannot be ignored,and any surgical manipulation may cause a change in inner ear pressure,resulting in instability in the middle ear transfer func-tion.Therefore,this study aims to eliminate the influence of the inner ear and to establish a new experimental method in human temporal bone specimens that is more suitable for the study of sound conduction in middle ear implants.As a result,a range for middle ear transfer function was developed,which serves as a reference for assessing the conformity of temporal bone specimens to experimental standards,and the stability of this range was demonstrated under experimental conditions.
机标关键词：middlefunctionsoundmethodstudyconductionimplantstransfer
论文发表日期：2025-10-30
在线出版日期：2025-11-27（本平台首次上网日期，不代表文献的发表时间）
页数：6( 219-224 )
英文信息