Abstract: An apparatus external to a patient and communicatively coupled to an implant within the patient is disclosed. The apparatus identifies a tentative stimulation parameter adjustment constraint and an absolute stimulation parameter adjustment constraint for a stimulation parameter associated with the implant. The apparatus also determines an impedance of an electrode implanted within the patient and coupled with the implant. Based on the impedance of the electrode, the apparatus automatically adjusts the stimulation parameter within a range between a present value and a first value defined by the tentative stimulation parameter adjustment constraint. Additionally, based on user input manually provided by the patient, the apparatus further adjusts the stimulation parameter within a range between the first value and a second value beyond the first value and defined by the absolute stimulation parameter adjustment constraint. Corresponding apparatuses, systems, and methods are also disclosed.

Abstract: An exemplary system includes a cochlear implant configured to be implanted within a recipient, the cochlear implant coupled to a lead having a plurality of electrodes, and a controller communicatively coupled to the cochlear implant. The controller is configured to direct the cochlear implant to apply stimulation current to a first electrode set of the plurality of electrodes to represent the audio signal to the recipient. The controller is further configured to direct the cochlear implant to apply treatment current to a second electrode set of the plurality of electrodes to treat tinnitus within the recipient, the second electrode set including electrodes different from the first electrode set.

Abstract: An exemplary system includes a sound processor configured to wirelessly communicate, while operating in a first mode, with a cochlear implant by way of a wearable headpiece coil configured to be worn on a head of a recipient of the cochlear implant, a non-wearable coil configured to be located away from the recipient, and an interface device configured to provide operating power to the non-wearable coil and communicatively couple to the sound processor while the sound processor is operating in a second mode. While the sound processor is coupled to the interface device and operating in the second mode, the non-wearable coil is configured to provide radio frequency (RF) power to the cochlear implant to keep the cochlear implant listening for commands from the sound processor.

Abstract: An apparatus external to a patient and communicatively coupled to an implant within the patient is disclosed. The apparatus identifies a tentative stimulation parameter adjustment constraint and an absolute stimulation parameter adjustment constraint for a stimulation parameter associated with the implant. The apparatus also determines an impedance of an electrode implanted within the patient and coupled with the implant. Based on the impedance of the electrode, the apparatus automatically adjusts the stimulation parameter within a range between a present value and a first value defined by the tentative stimulation parameter adjustment constraint. Additionally, based on user input manually provided by the patient, the apparatus further adjusts the stimulation parameter within a range between the first value and a second value beyond the first value and defined by the absolute stimulation parameter adjustment constraint. Corresponding apparatuses, systems, and methods are also disclosed.

Abstract: An apparatus associated with a cochlear implant system used by a patient directs a cochlear implant included within the cochlear implant system and implanted within the patient to generate electrical stimulation current at a predetermined current level. The apparatus further directs the cochlear implant to apply the electrical stimulation current to the patient by way of an electrode coupled with the cochlear implant, and to measure a voltage level associated with the electrode while the electrical stimulation current is applied to the patient by way of the electrode. Based on the predetermined current level and the measured voltage level, the apparatus determines an impedance of the electrode. Based on the determined electrode impedance and in accordance with a predetermined stimulation parameter adjustment constraint, the apparatus automatically adjusts a stimulation parameter associated with the cochlear implant system. Additional apparatuses and corresponding methods are also disclosed.

Abstract: A fixation device for use with an implantable medical device includes a body member comprising a contact surface shaped to conform to an outer surface of the implantable medical device, an adhesion element provided on a contact surface of the body member and configured to attach the body member to the outer surface of the implantable medical device, and an anchor member extending from the body member and having a hole for securing the fixation device to a human body while the body member is attached to the outer surface of the implantable medical device.

Abstract: An exemplary method of inserting a peri-straight electrode array into a cochlea of a recipient includes positioning the peri-straight electrode array and an insertion tool within the recipient such that a distal end of the insertion tool is provided within the recipient at a location that is outside and not touching the cochlea of the recipient, and a straight distal portion of the peri-straight electrode array extends away from the distal end of the insertion tool and into the cochlea. The exemplary method further includes manually interacting with the insertion tool to advance the straight distal portion and at least some of a pre-curved proximal portion into the cochlea without allowing the insertion tool to enter or come in contact with the cochlea, and removing the insertion tool from the recipient such that the peri-straight electrode array remains within the cochlea after the insertion tool is removed from the recipient.

Abstract: An exemplary system includes a sound processor configured to wirelessly communicate, while operating in a first mode, with a cochlear implant by way of a wearable headpiece coil configured to be worn on a head of a recipient of the cochlear implant, a non-wearable coil configured to be located away from the recipient, and an interface device configured to provide operating power to the non-wearable coil and communicatively couple to the sound processor while the sound processor is operating in a second mode. While the sound processor is coupled to the interface device and operating in the second mode, the non-wearable coil is configured to provide radio frequency (RF) power to the cochlear implant to keep the cochlear implant listening for commands from the sound processor.

Abstract: A fixation device for use with an implantable medical device includes a body member comprising a contact surface shaped to conform to an outer surface of the implantable medical device, an adhesion element provided on a contact surface of the body member and configured to attach the body member to the outer surface of the implantable medical device, and an anchor member extending from the body member and having a hole for securing the fixation device to a human body while the body member is attached to the outer surface of the implantable medical device.

Abstract: An apparatus associated with a cochlear implant system used by a patient directs a cochlear implant included within the cochlear implant system and implanted within the patient to generate electrical stimulation current at a predetermined current level. The apparatus further directs the cochlear implant to apply the electrical stimulation current to the patient by way of an electrode coupled with the cochlear implant, and to measure a voltage level associated with the electrode while the electrical stimulation current is applied to the patient by way of the electrode. Based on the predetermined current level and the measured voltage level, the apparatus determines an impedance of the electrode. Based on the determined electrode impedance and in accordance with a predetermined stimulation parameter adjustment constraint, the apparatus automatically adjusts a stimulation parameter associated with the cochlear implant system. Additional apparatuses and corresponding methods are also disclosed.

Abstract: In one example, a cochlear lead includes a flexible body, an array of electrodes in the flexible body, and a plurality of wires passing along the array of electrodes. The plurality of wires includes a flexural geometry between each pair of adjacent electrodes and a substantially straight geometry over the electrodes. A method for forming an electrode array with a reduced apical cross section is also provided.

Abstract: In one example, an implantable lead includes a substrate and an electrically conductive material disposed on the substrate to form a flexible circuit. The flexible circuit includes a proximal end adapted to electrically connect to an implantable processor, a distal portion adapted to stimulate a cochlear nerve, and a lead body extending from the proximal end to the distal portion, the lead body having a longitudinal axis and comprising a plurality of electrical traces adapted to carry electrical signals from the proximal end to the distal portion. A flag extension is formed in the substrate and extends laterally outward from the lead body longitudinal axis. A method for forming a cochlear lead with a flag extension is also provided.

Abstract: An implantable lead may include an insulating substrate and a first asymmetric electrode formed on the insulating substrate. The first asymmetric electrode may have external perimeter edges defining a boundary between an exposed portion of the first electrode and the insulating substrate, wherein the external perimeter edges of the first electrode have asymmetric edge lengths.

Abstract: A cochlear lead includes a thermoformed circuit with a substrate with electrodes formed on the substrate and shaped to curve around a longitudinal axis of the cochlear lead. Traces are also formed on the substrate and connected to the electrodes. Intermediate sections between the electrodes may be curved about an axis that is orthogonal to the longitudinal axis.

Abstract: In one example, a cochlear lead includes a flexible body, an array of electrodes in the flexible body, and a plurality of wires passing along the array of electrodes. The plurality of wires includes a flexural geometry between each pair of adjacent electrodes and a substantially straight geometry over the electrodes. A method for forming an electrode array with a reduced apical cross section is also provided.

Abstract: A system for retaining a magnet in a cochlear implant, comprising a retainer embedded within an encapsulant of the cochlear implant, and a magnet case engaged with the retainer. A retainer for retaining a magnet within a cochlear implant comprising a number of first fasteners that couple with a number of corresponding second fasteners of a magnet case hermetically sealing the magnet, and a number of supports embedded within an encapsulant of the cochlear implant.

Abstract: An exemplary system includes 1) an electro-acoustic stimulation (“EAS”) sound processor located external to a patient, 2) a cochlear implant communicatively coupled to the EAS sound processor and implanted within the patient, 3) an electrode array communicatively coupled to the cochlear implant and located within a cochlea of the patient, and 4) a receiver communicatively coupled to the EAS sound processor and configured to be in communication with an ear of the patient. The EAS sound processor operates in accordance with an acoustic-only mode during a post-implant time period and detects audio content presented to the patient, directs the receiver to apply acoustic stimulation, and prevents the cochlear implant from applying electrical stimulation representative of audio content presented to the patient during the post-implant time period. Corresponding systems and methods are also disclosed.

Abstract: A device includes a hermetically sealed case with electronic circuitry housed within. One surface of the hermetically sealed case includes a metallic plate and a co-fired ceramic electrical feedthrough with a number of vias. The co-fired ceramic electrical feedthrough is hermetically joined to the metallic plate and a hybrid circuit is connected to the feedthrough.

Abstract: An exemplary system may include an intracochlear electrode array configured to be inserted into a cochlea of a patient, an intraneural probe comprising an intraneural electrode contact and configured to be inserted into an auditory nerve of the patient, and a computing system. The computing system may be configured to identify an optimal insertion path for an intraneural electrode array into the auditory nerve of the patient by 1) repeatedly stimulating the intraneural electrode contact of the intraneural probe while the intraneural probe is advanced into the auditory nerve along a probe insertion path, 2) using the intracochlear electrode array to record a plurality of evoked responses that occur in response to the repeated stimulation of the intraneural electrode contact, and 3) determining, based on the plurality of evoked responses, whether the probe insertion path is the optimal insertion path for the intraneural electrode array.

Abstract: An electrode assembly for a cochlear lead is configured to stimulate an auditory nerve from within a cochlea. The electrode assembly includes a conductive support structure for supporting an electrode and having two wings that are folded toward each other to form a wire carrier for a bundle of wires of the cochlear lead; and at least one of the wings comprising a tab extending from that wing along a longitudinal axis of the cochlear lead to inhibit twisting of the cochlear lead.