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    Systems and methods for detecting a compliance state of a current source included in a cochlear implant
    1.
    发明授权
    Systems and methods for detecting a compliance state of a current source included in a cochlear implant 有权

    公开(公告)号：US09717908B2

    公开(公告)日：2017-08-01

    申请号：US15024027

    申请日：2014-02-24

    申请人： ADVANCED BIONICS AG

    发明人： R. Tissa Karunasiri

    IPC分类号： A61N1/36

    CPC分类号： A61N1/36032 ,  A61N1/36036

    摘要： An exemplary cochlear implant may include 1) a current source tied to a voltage supply and having an output that is electrically coupled to an electrode included in a plurality of electrodes, 2) a mirrored current source associated with the current source and that is commanded to output a commanded current, 3) a reference load coupled to an output of the mirrored current source and that forces the mirrored current source into an out-of-compliance state in which the mirrored current source outputs a reference current that is a predetermined percentage lower than the commanded current, the reference current resulting in a dynamic reference voltage at the output of the mirrored current source, and 4) a comparator that compares a voltage at the output of the current source with the dynamic reference voltage, and outputs a signal based on the comparison. Corresponding systems and methods are also described.

    Control for hearing prosthesis fitting
    4.
    发明授权
    Control for hearing prosthesis fitting 有权

    公开(公告)号：US09656071B2

    公开(公告)日：2017-05-23

    申请号：US13835547

    申请日：2013-03-15

    申请人： Cochlear Limited

    发明人： Stefan Lievens ,  Thomas Stainsby ,  Rami Banna ,  Christopher J. James

    IPC分类号： H04R25/00 ,  A61N1/36

    CPC分类号： A61N1/36032 ,  A61N1/36036 ,  H04R25/606 ,  H04R25/70

    摘要： A method for adjusting parameters of a hearing prosthesis system includes adjusting a control to shift an audiogram associated with a first stimulator, applying a prescription rule using the shifted audiogram to adjust a cross-over frequency that defines a first frequency range and a second frequency range. The first stimulator is configured to apply stimulation signals in the first frequency range and a second stimulator is configured to apply stimulation signals in the second frequency range. The method also includes applying the prescription rule using the shifted audiogram to determine gain and maximum power output (MPO) levels for the first frequency range associated with the first stimulator.

    Energy harvesting cochlear implant
    5.
    发明授权
    Energy harvesting cochlear implant 有权

    公开(公告)号：US09630007B2

    公开(公告)日：2017-04-25

    申请号：US14355213

    申请日：2011-12-02

    申请人： Haluk Kulah ,  Nebil Goksu ,  Levent Beker

    发明人： Haluk Kulah ,  Nebil Goksu ,  Levent Beker

    IPC分类号： A61N1/36 ,  A61N1/378 ,  H01L41/113 ,  H02N2/18 ,  H04R25/00 ,  H04R17/00

    CPC分类号： A61N1/36032 ,  A61N1/36036 ,  A61N1/3785 ,  H01L41/1136 ,  H02N2/188 ,  H04R17/00 ,  H04R25/606

    摘要： The invention is related to a totally implantable cochlear implant having a transducer which is a piezoelectric vibration energy harvester to be mounted on the ossicular chain or the tympanic membrane to detect the frequency of oscillations and generate the required voltage to stimulate the relevant auditory nerves. The invention enables patients' continuous access to sound, since it eliminates the outside components of conventional cochlear implants. The invention also eliminates the problem of battery need, since the transducer generates voltage required to stimulate auditory nerves from the vibrations of ossicular chain. The transducer is fabricated using Microelectromechanical Systems (MEMS) fabrication techniques. The invention incorporates of two main parts, a transducer acting both as a frequency detector and an energy harvester, and electrodes to stimulate the auditory nerve inside the cochlea.

    Intra-cochlear stimulating assembly insertion
    6.
    发明授权
    Intra-cochlear stimulating assembly insertion 有权

    公开(公告)号：US09597503B2

    公开(公告)日：2017-03-21

    申请号：US14843259

    申请日：2015-09-02

    申请人： Cochlear Limited

    发明人： Frank Risi ,  Shaun Ashwin Kumar ,  Andrea Lam ,  Paul Michael Carter

    IPC分类号： A61N1/00 ,  A61N1/36 ,  A61N1/05

    CPC分类号： A61N1/36032 ,  A61N1/0541 ,  A61N1/36039

    摘要： Presented herein are intra-operative techniques for setting the angular insertion depth of a stimulating assembly during implantation into a recipient's cochlea. In certain embodiments, the angular insertion depth is monitored in real-time and advancement of the stimulating assembly is terminated when a selected angular insertion depth is achieved. In further embodiments, a linear insertion depth that corresponds to a selected angular insertion depth is intra-operatively calculated and advancement of the stimulating assembly is terminated when the calculated linear insertion depth is achieved.

    Systems and methods for controlling a width of an excitation field created by current applied by a cochlear implant system
    7.
    发明授权
    Systems and methods for controlling a width of an excitation field created by current applied by a cochlear implant system 有权

    公开(公告)号：US09597502B2

    公开(公告)日：2017-03-21

    申请号：US14651628

    申请日：2013-11-29

    申请人： ADVANCED BIONICS AG

    发明人： Leonid M. Litvak ,  Michael S. Marzalek

    IPC分类号： A61N1/00 ,  A61N1/36 ,  A61N1/05

    CPC分类号： A61N1/36032 ,  A61N1/36036 ,  F04C2270/0421

    摘要： An exemplary sound processor (104) 1) identifies a stimulation site within a cochlea of a patient that is to be stimulated in order to represent acoustic content presented to the patient, the stimulation site included within a plurality of stimulation sites associated with a stimulation channel corresponding to a plurality of electrodes, 2) determines a target excitation field width associated with the stimulation channel and 3) dynamically sets, based on the identified stimulation site, an amplitude and a polarity of current to be applied to each electrode included in the plurality of electrodes in order to represent the acoustic content so that an excitation field created by the current has a width that roughly matches the target excitation field width. A system and a corresponding method are also disclosed.

    Tinnitus fitting method in CI and ABI patients
    8.
    发明授权
    Tinnitus fitting method in CI and ABI patients 有权
    CI和ABI患者耳鸣适应方法

    公开(公告)号：US09566435B2

    公开(公告)日：2017-02-14

    申请号：US14927524

    申请日：2015-10-30

    申请人： MED-EL Elektromedizinische Geraete GmbH

    发明人： Marek Polak

    IPC分类号： A61N1/36 ,  A61N1/05

    CPC分类号： A61N1/36032 ,  A61N1/0541 ,  A61N1/36036 ,  A61N1/36039

    摘要： A method is described for adjusting hearing implant operating parameters for electrode contacts in an implantable electrode array to minimize tinnitus in an implanted patient. A channel tinnitus masking stimulation level is measured for each electrode contact at which maximum tinnitus masking occurs, Ytin,n. A channel threshold stimulation level also is measured for each electrode contact that represents a lowest detectable stimulation level, Tmeas,n. And a channel maximum stimulation level is measured for each electrode contact that represents a maximum comfortable stimulation level, MCLmeas,n. Channel threshold stimulation level Tn and channel maximum stimulation level MCLn are then adjusted for each electrode contact as a function of the channel tinnitus masking stimulation level Ytin,n and tinnitus masking stimulation levels for adjacent electrode contacts, Ytin,adj.

    摘要翻译： 描述了一种用于调节可植入电极阵列中的电极接触的听力植入操作参数以最小化植入患者中的耳鸣的方法。 对于发生最大耳鸣掩蔽的每个电极接触，测量通道耳鸣屏蔽刺激水平，Ytin，n。 对于代表最低可检测刺激水平的每个电极接触，测量通道阈值刺激水平，Tmeas，n。 并且测量代表最大舒适刺激水平的每个电极接触器的通道最大刺激水平，MCLmeas，n。 然后针对每个电极接触，调整通道阈值刺激水平Tn和通道最大刺激水平MCLn作为通道耳鸣屏蔽刺激水平Ytin，n和用于相邻电极接触的耳鸣屏蔽刺激水平的函数Ytin，adj。

    Systems and methods for maximizing loudness sensation in a cochlear implant patient
    9.
    发明授权
    Systems and methods for maximizing loudness sensation in a cochlear implant patient 有权
    在耳蜗植入患者中最大化响度感觉的系统和方法

    公开(公告)号：US09533145B2

    公开(公告)日：2017-01-03

    申请号：US14899555

    申请日：2013-06-25

    申请人： ADVANCED BIONICS AG

    发明人： Aniket Saoji ,  Leonid M. Litvak

    IPC分类号： A61N1/36 ,  A61N1/05

    CPC分类号： A61N1/36032 ,  A61N1/0541 ,  A61N1/36036 ,  A61N1/36146 ,  A61N1/36175

    摘要： An exemplary system includes a processing facility configured to process an audio signal presented to a cochlear implant patient and a control facility configured to direct a cochlear implant to apply electrical stimulation representative of the audio signal to the cochlear implant patient by 1) directing the cochlear implant to concurrently apply a first biphasic stimulation pulse by way of a first electrode and a second biphasic stimulation pulse by way of a second electrode during a first time slot, and 2) directing the cochlear implant to concurrently apply a third biphasic stimulation pulse by way of the second electrode and a fourth biphasic stimulation pulse by way of a third electrode during a second time slot that immediately follows the first time slot. The third and fourth biphasic stimulation pulses are flipped in phase compared to the first and second biphasic stimulation pulses.

    摘要翻译： 示例性系统包括处理设备，其被配置为处理呈现给耳蜗植入物患者的音频信号;以及控制设备，其被配置为引导耳蜗植入物，以将表示所述音频信号的电刺激施加到所述耳蜗植入患者，1）引导所述人工耳蜗植入物 通过第一电极和第二双相刺激脉冲在第一时隙期间同时施加第一双相刺激脉冲，以及2）引导耳蜗植入物同时施加第三双相刺激脉冲，通过 第二电极和第四个双相刺激脉冲通过第三时间段内的第二时隙紧接在第一时隙之后。 与第一和第二双相刺激脉冲相比，第三和第四双相刺激脉冲相位翻转。