摘要
本文探索一种新的简便方法，将压电陶瓷膜片植入耳蜗，利用材料的压电效应，直接将声信号变成电信号，刺激听神经产生听觉，取代价格昂贵、结构复杂的电子耳蜗，使聋耳重新获得听力．这将造福于几百万全聋病人．为此，我们找到一种铌酸盐压电陶瓷，其稳定性好、优值高、频率常数大、生物相容性好．制成厚膜小片植入爆震致聋的１５只豚鼠耳蜗后，聋耳听力提高４０～５０ｄＢ．显示压电陶瓷良好的生物听效应，有可能发展成新一代的人工听觉器管．
Neobate piezoelectric ceramic films were implanted into 15 cochlears of guinea-pigs deafened by explosion. The Auditory Brainstem Response (ABR) hearing thresholds were determined after implantation. The hearing was improved by 40￣50 dB. The piezoelectric ceramic might promise to be a new atificial auditory biomaterial to display a good biological acoustic effectiveness.
出处
《无机材料学报》
SCIE
EI
CAS
CSCD
北大核心
1994年第4期471-474,共4页
Journal of Inorganic Materials
基金
国家自然科学基金
关键词
压电陶瓷
听效应
耳蜗植入
生物听效应
piezoelectric ceramic, acoustic effectiveness, cochlear implantation
