Raine C H, Lee C A, Strachan D R, Totten C T, Khan S
Yorkshire Cochlear Implant Service, Bradford Royal Infirmary, Bradford, UK.
Cochlear Implants Int. 2007 Sep;8(3):148-57. doi: 10.1179/cim.2007.8.3.148.
The thickness and quality of the skin overlying a cochlear implant is important for its integrity. It should be thick enough to protect the implant and prevent flap breakdown yet should not be so thick that it impedes the electronic signal or causes difficulty wearing the coil because of loss of the magnetic coupling. The principle of this study was to devise a method to assess the thickness of skin over a cochlear implant receiver stimulator package and prospectively measure this thickness during the first year following surgery. All patients studied were implanted with MED-EL COMBI 40+ implants. The first cohort consisted of 35 adults; the second 23 children. Various methods of measurement were assessed. In this study the principle of the Hall Effect electrode was used to measure the magnetic flux density of the magnet within the receiver stimulator package. Following standardization, results showed that skin thickness significantly thinned in the adult group before stabilizing. This was less obvious in children, probably due to the effect of the skin thickening as the child grows. Knowledge of skin thickness has implications relating to the functioning of an implant and avoiding potential flap related complications.
人工耳蜗植入体上方覆盖皮肤的厚度和质量对其完整性很重要。它应该足够厚以保护植入体并防止皮瓣破裂，但又不能太厚以至于阻碍电信号传输，或者由于磁耦合丧失而导致佩戴线圈困难。本研究的目的是设计一种方法来评估人工耳蜗接收器刺激器组件上方皮肤的厚度，并在术后第一年对该厚度进行前瞻性测量。所有参与研究的患者均植入了MED-EL COMBI 40+植入体。第一组有35名成年人；第二组有23名儿童。对各种测量方法进行了评估。在本研究中，利用霍尔效应电极原理测量接收器刺激器组件内磁体的磁通密度。标准化后，结果显示成人组皮肤厚度在稳定前显著变薄。在儿童中这种情况不太明显，可能是由于儿童生长过程中皮肤增厚的影响。了解皮肤厚度对植入体的功能以及避免潜在的皮瓣相关并发症具有重要意义。
