| Entries |
| Document | Title | Date |
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| 20080300652 | Systems and Methods for Inducing Intelligible Hearing - The present invention comprises systems and methods for inducing auditory sensations in patients by stimulating the inferior colliculus of the mammalian midbrain. In some embodiments, the invention comprises an auditory prosthesis system comprising a microphone, a sound processor, a current stimulator, and one or more stimulating electrodes disposed in the inferior colliculus of a mammal. At least one of the stimulating electrodes may be comprised of one or more shanks, each shank comprised of one or more stimulation sites. In some embodiments, without limitation, the invention comprises methods of inducing auditory sensation in a mammal, comprising the steps of providing a microphone, a sound processor, and a current stimulator; providing one or more stimulating electrodes each comprised of two or more shanks, each shank comprised of one or more stimulation sites; disposing at least one stimulating electrode in the inferior colliculus of a mammal; and stimulating at least one isofrequency lamina of the inferior colliculus by applying an electrical signal through at least one of the stimulation sites. | 12-04-2008 |
| 20090018614 | Electrical Nerve Stimulation with Broad Band Low Frequency Filter - A system and method of generating electrode stimulation signals for an implanted multi-channel electrode array of a cochlear implant includes processing an acoustic audio signal with a bank of filters. Each filter in the bank of filters is associated with at least one channel having an electrode. The bank of filters includes a first band pass filter that produces a broadband signal b(t) with frequencies that substantially cover at least one of a pitch frequency range of 100 Hz to 400 Hz and a first format range of 400 Hz-1000 Hz. At least one electrode associated with the first band pass filter is activated with electrode stimulation signals based, at least in part, on the broadband signal b(t). The filter bank may include at least one electrode associated with one or more filters other than the first band pass filter, the one or more filters producing signals having only higher frequencies than broadband signal b(t). | 01-15-2009 |
| 20090024183 | SOMATIC, AUDITORY AND COCHLEAR COMMUNICATION SYSTEM AND METHOD - Methods and devices ( | 01-22-2009 |
| 20100249879 | Musical Fitting of Cochlear Implants - A method of developing a weighting matrix for a cochlear implant patient is described. An electrode stimulus signal is derived from a first musical signal. A set of further stimulus signals is derived that have a defined musical relation to the first musical signal. A set of weighting values are selected for the stimulation electrodes for the electrode stimulus signal. Then the weighting values are set for the stimulation electrodes for each of the further stimulus signals. Each of the stimulus signals is consecutively presented to the patient and the weighting values individually adjusted for each of the further stimulus signals until the series of stimulus signals elicits an increasing pitch percept according to the defined musical relation. The adjusted weighting values are stored and assigned to a corresponding analysis channel. The process is iteratively repeated using one of the further stimulus signals as the first electrode stimulus signal until weighting values for a complete frequency range have been derived. | 09-30-2010 |
| 20110022119 | BONE CONDUCTION DEVICE FITTING - Methods and systems for fitting a bone conduction device are provided herein. These methods and systems comprise obtaining dynamic range parameters for a bone conduction device. These dynamic range parameters may include threshold and a maximum comfort levels for the bone conduction device. Once determined, the bone conduction device may use the dynamic range parameters in applying stimulation to a recipient. | 01-27-2011 |
| 20110125217 | ACTIVE ELECTRODE STATE CONTROL SYSTEM - A method and system for charge imbalance compensation in a stimulating medical device is provided. The stimulating medical device includes at least one electrode contact configured for providing stimulation to a recipient. A charge imbalance compensation system in the stimulating medical device measures any residual charge remaining on the electrode contact that may result from an imbalance in the applied stimulation. If the measured residual charge exceeds a threshold, the charge imbalance compensation system causes a compensator current to be applied to reduce the residual charge. This residual charge may be measured by measuring a potential difference between the electrode contact and a reference electrode; or, by measuring a potential difference across a capacitor in-series with the electrode contact. | 05-26-2011 |
| 20110230933 | ELECTRICAL STIMULATION METHOD AND APPARATUS TO STIMULATE NERVE FIBERS - The present invention provides an electrical stimulation method and apparatus to stimulate nerve fibers, turning on suitable combination of adjacent electrodes simultaneously to form virtual channels based on predetermined rules, so that the stimulation signal will generate or evoke a nerve response spectrum that matches the original signal spectrum presented as the input sound. The method includes the steps of receiving a sound signal by a receiving unit; dividing the received sound signal into a plurality of frequency bands by a processing unit; extracting a spectral peak from each of the frequency bands and determining a stimulation sequence of frequency bands by the processing unit; and selectively driving a plurality of electrode groups in a plurality of cycles based on the stimulation sequence of frequency bands and a determination rule by the processing unit, so that the nerve response that matches the original signal will be generated. | 09-22-2011 |
| 20110264168 | COCHLEAR ELECTRODE ARRAY - An implantable tissue-stimulating prosthesis such as a cochlear implant system comprising an elongate carrier member having a distal end, a proximal end, and at least one electrode positioned thereon; at least one electrical conductor extending from one or more of the at least one electrode; a lead extending from the carrier member and enclosing the at least one electrical conductor; and a holding member constructed and arranged to radially extend outwardly from the surface of the carrier member to facilitate grasping of the holding member during implantation of the carrier member in a patient. | 10-27-2011 |
| 20120226331 | Distributed Processing of Electrophysiological Signals - The present application discloses systems and methods for distributed processing of electrophysiological signals. The system may include a processor, a remote device, and an implant comprising an array of electrodes. The method may comprise the processor receiving an electrophysiological signal request from the remote device that specifies at least one electrode at the implant from which to receive an electrophysiological signal, transmitting to the implant instructions to apply a plurality of stimuli via the specified at least one electrode and, for individual stimuli in the plurality of stimuli, recording an electrophysiological signal component resulting from the stimulus. The method may also comprise the processor combining the recorded individual electrophysiological signal components to produce the electrophysiological signal and transmitting the electrophysiological signal to the remote device for further processing. In some embodiments of the method, the processor may compress the electrophysiological signal before transmitting it to the remote device. | 09-06-2012 |
| 20130023953 | Systems, Methods, and Articles of Manufacture for Characterizing Hearing Prosthesis Channel Interaction - The present application discloses systems, methods, and articles of manufacture for characterizing hearing prosthesis channel interaction. Some embodiments may include applying a probe signal to a region of auditory neurons via a first hearing prosthesis channel, and applying a perturber signal to the region of auditory neurons via a second hearing prosthesis channel, where the perturber signal is configured to cause a polarity-independent neural excitation in an auditory neuron. Some embodiments may additionally include measuring one or more metrics corresponding to a neural response to the application of the probe and perturber signals. | 01-24-2013 |
