目的比较双耳双模式(一侧耳佩戴助听器,另一侧耳植入人工耳蜗)的人工耳蜗植入患者与单侧人工耳蜗植入患者术后听力、声音理解能力、言语感知、空间听力、言语分辨率等方面的差异。方法选取2013年12月~2014年年12月在安徽医科大学第一附...目的比较双耳双模式(一侧耳佩戴助听器,另一侧耳植入人工耳蜗)的人工耳蜗植入患者与单侧人工耳蜗植入患者术后听力、声音理解能力、言语感知、空间听力、言语分辨率等方面的差异。方法选取2013年12月~2014年年12月在安徽医科大学第一附属医院行人工耳蜗植入的患者51例,根据术后非植入耳是否佩戴助听器,分为A组(单侧人工耳蜗植入28例)、B组(双耳双模式23例)。采用听觉行为分级-Ⅱ(categories of auditory performance-Ⅱ,CAP-Ⅱ)、有意义听觉整合量表(meaningful auditoryintegrationscale,MAIS)、言语空间特性量表父母版(speech,spatial and qualities of hearing scale-parents'version,SSQ-P)三个量表,通过问卷调查的方式,对患儿术前、术后听觉能力进行评估,比较两组的得分。结果两组术前CAP-Ⅱ、MAIS、SSQ-P得分差异均无统计学意义(P>0.05)。术后B组患者CAP分级(6.36±1.50级)和MAIS得分(25.96±3.77分)高于A组(分别为5.52±1.33级、23.36±4.86分),差异均有统计学意义(P<0.05);术后B组患者SSQ-P量表言语感知(8.17±0.59分)、空间听力(6.48±1.17分)、其他听力特性(6.93±0.96分)得分均高于A组患者(分别为7.48±0.72、3.89±0.78、5.56±0.84分),差异均有统计学意义(P<0.05)。结论双耳双模式人工耳蜗植入患者较单侧人工耳蜗植入患者术后听觉能力更好。展开更多
In this paper, an attempt has been made to produce a recipient system of wireless charge for a simple hearing aid so that electrical signal would be generated through detecting and receiving radio frequency waves (RF)...In this paper, an attempt has been made to produce a recipient system of wireless charge for a simple hearing aid so that electrical signal would be generated through detecting and receiving radio frequency waves (RF). The purpose of this design is to receive wireless charge for hearing aids and basically for any electronic device which is not required to a high energy for being setup. In this study, it has been demonstrated that as the amount of radio receiving energy increases, distance of receiver from antenna should be decreased;otherwise, either maximum amount of the receiving energy, or signal power density of the transmitter should be increased. Since it is impossible to be performed, it is decided to set up an energy receiving system constructed by rectenna and charge Circuit and to adjust their parameters to provide energy requirements for a device with low-power consumption. In this paper, different components of an energy receiving system from radio frequency band have been mentioned and a diagram block has been suggested. Subsequently, input impedance of designed antenna has been adjusted by provided relations. This impedance should be adjusted with the total impedance of regarded hearing aid Circuit by which the highest amount of received signal power is transferred to the battery of hearing aids. Received signal is converted to a dc voltage by rectifier diode. Finally, by applying a voltage regulator which has been designed using a common-collector amplifier not only the output voltage is kept constant, but the power is also strengthened. The battery of the hearing aids will be charged using the obtained power and voltage.展开更多
文摘目的比较双耳双模式(一侧耳佩戴助听器,另一侧耳植入人工耳蜗)的人工耳蜗植入患者与单侧人工耳蜗植入患者术后听力、声音理解能力、言语感知、空间听力、言语分辨率等方面的差异。方法选取2013年12月~2014年年12月在安徽医科大学第一附属医院行人工耳蜗植入的患者51例,根据术后非植入耳是否佩戴助听器,分为A组(单侧人工耳蜗植入28例)、B组(双耳双模式23例)。采用听觉行为分级-Ⅱ(categories of auditory performance-Ⅱ,CAP-Ⅱ)、有意义听觉整合量表(meaningful auditoryintegrationscale,MAIS)、言语空间特性量表父母版(speech,spatial and qualities of hearing scale-parents'version,SSQ-P)三个量表,通过问卷调查的方式,对患儿术前、术后听觉能力进行评估,比较两组的得分。结果两组术前CAP-Ⅱ、MAIS、SSQ-P得分差异均无统计学意义(P>0.05)。术后B组患者CAP分级(6.36±1.50级)和MAIS得分(25.96±3.77分)高于A组(分别为5.52±1.33级、23.36±4.86分),差异均有统计学意义(P<0.05);术后B组患者SSQ-P量表言语感知(8.17±0.59分)、空间听力(6.48±1.17分)、其他听力特性(6.93±0.96分)得分均高于A组患者(分别为7.48±0.72、3.89±0.78、5.56±0.84分),差异均有统计学意义(P<0.05)。结论双耳双模式人工耳蜗植入患者较单侧人工耳蜗植入患者术后听觉能力更好。
文摘In this paper, an attempt has been made to produce a recipient system of wireless charge for a simple hearing aid so that electrical signal would be generated through detecting and receiving radio frequency waves (RF). The purpose of this design is to receive wireless charge for hearing aids and basically for any electronic device which is not required to a high energy for being setup. In this study, it has been demonstrated that as the amount of radio receiving energy increases, distance of receiver from antenna should be decreased;otherwise, either maximum amount of the receiving energy, or signal power density of the transmitter should be increased. Since it is impossible to be performed, it is decided to set up an energy receiving system constructed by rectenna and charge Circuit and to adjust their parameters to provide energy requirements for a device with low-power consumption. In this paper, different components of an energy receiving system from radio frequency band have been mentioned and a diagram block has been suggested. Subsequently, input impedance of designed antenna has been adjusted by provided relations. This impedance should be adjusted with the total impedance of regarded hearing aid Circuit by which the highest amount of received signal power is transferred to the battery of hearing aids. Received signal is converted to a dc voltage by rectifier diode. Finally, by applying a voltage regulator which has been designed using a common-collector amplifier not only the output voltage is kept constant, but the power is also strengthened. The battery of the hearing aids will be charged using the obtained power and voltage.
