Nguyen Yann, Miroir Mathieu, Kazmitcheff Guillaume, Sutter Jasmine, Bensidhoum Morad, Ferrary Evelyne, Sterkers Olivier, Bozorg Grayeli Alexis
University Paris Diderot, Paris, France.
Audiol Neurootol. 2012;17(5):290-8. doi: 10.1159/000338406. Epub 2012 May 30.
Cochlear implant array insertion forces are potentially related to cochlear trauma. We compared these forces between a standard (Digisonic SP; Neurelec, Vallauris, France) and an array prototype (Neurelec) with a smaller diameter. The arrays were inserted by a mechatronic tool in 23 dissected human cochlea specimens exposing the basilar membrane. The array progression under the basilar membrane was filmed together with dynamic force measurements. Insertion force profiles and depth of insertion were compared. The recordings showed lower insertion forces beyond 270° of insertion and deeper insertions with the thin prototype array. This will potentially allow larger cochlear coverage with less trauma.
人工耳蜗植入阵列的插入力可能与耳蜗创伤有关。我们比较了标准型（Digisonic SP；法国瓦洛里斯的Neurelec公司）和一种直径较小的阵列原型（Neurelec公司）之间的这些力。在23个解剖的人类耳蜗标本中，通过机电一体化工具插入阵列，暴露基底膜。在动态力测量的同时拍摄基底膜下方阵列的推进情况。比较了插入力曲线和插入深度。记录显示，使用较细的原型阵列时，插入270°之后的插入力较低，且插入更深。这可能会在创伤较小的情况下实现更大范围的耳蜗覆盖。
