Systems, devices and methods are disclosed that allow recharging a power source located in an implanted medical device implanted in a patient, the recharging device comprising first and second pairs of electrical coils configured to generate first and second uniform magnetic fields in overlapping first and second cylindrical regions located between the respective pairs of electrical coils.

An electronics and antenna assembly is disclosed for use with a medical implant.

Systems, devices and methods allow inductive recharging of a power source located within or coupled to an implantable medical device (IMD) while the device is implanted in a patient. The IMD may include a rechargeable battery having a battery housing; a non-metallic substrate attached to the battery housing, wherein the non-metallic substrate and the battery housing form an outer housing of the implantable medical device; control circuitry formed on the non-metallic substrate within the outer housing of the IMD; a receive coil within the outer housing of the IMD, the receive coil configured to receive energy from outside of the outer housing of the IMD; and recharge circuitry within the outer housing of the IMD and coupled to the receive coil, the recharge circuitry configured to receive the energy from the receive coil, and recharge the rechargeable battery using the received energy.

A method of treating a mental disorder of a patient includes generating, by an implantable stimulator configured to be implanted beneath a skin surface of the patient, stimulation sessions at a duty cycle that is less than 0.05 and applying, by the implantable stimulator in accordance with the duty cycle, the stimulation sessions to a tissue location associated with the mental disorder. The duty cycle is a ratio of T3 to T4. Each stimulation session included in the stimulation sessions has a duration of T3 minutes and occurs at a rate of once every T4 minutes. The implantable stimulator is powered by a primary battery located within the implantable stimulator and having an internal impedance greater than 5 ohms.

The present disclosure provides systems and methods for circuitry for an implantable pulse generator (IPG) of a neurostimulation system. The circuitry includes at least one anode node, at least one cathode node, a plurality of switching circuits, each switching circuit coupled to the at least one anode node and the at least one cathode node, and a plurality of output channels, each output channel coupled between an associated switching circuit and at least one electrode. The circuitry further includes a first DC blocking capacitor coupled between the at least one anode node and the plurality of switching circuits, a second DC blocking capacitor coupled between the at least one cathode node and the plurality of switching circuits. The circuitry further includes mitigation circuitry operable to limit DC leakage from the plurality of switching circuits through the plurality of output channels.

A system and method for an electrically enhanced surgical implant comprising: an implant body that includes an inner frame, wherein the inner frame includes a set electrode sites, and an over-coating that is formed over the inner frame, leaving the electrode sites exposed on the surface of the implant body; a circuitry casing, electrically and mechanically connected to the implant body, implant circuitry, situated at least partially within the implant casing, comprising receiver circuitry, effective to convert an electromagnetic field to electric current, control circuitry, and a power source; a set of conductive paths, wherein each conductive path has a first portion, electrode, situated on an electrode site, and a second portion, electrical conduit, that extends on and through the inner frame and electrically connects the electrode to the implant circuitry in the circuitry casing. The system functions as an electrically enabled surgical implant, such that the surgical implant can provide precisely determined and localized electrical stimulus as part of the implant operation.

A method of treating a patient, comprising: sensing a biological parameter indicative of respiration; analyzing the biological parameter to identify a respiratory cycle; identifying an inspiratory phase of the respiratory cycle; and delivering stimulation to a hypoglossal nerve of the patient, wherein stimulation is delivered if a duration of the inspiratory phase of the respiratory cycle is greater than a predetermined portion of a duration of the entire respiratory cycle.

A cochlear implant including a cochlear lead, an antenna, a stimulation processor, and a magnet apparatus, associated with the antenna, including a case defining a central axis, a magnet frame within the case and rotatable about the central axis of the case, and a plurality of elongate diametrically magnetized magnets that are located in the magnet frame, the magnets defining a longitudinal axis and a N-S direction and being freely rotatable about the longitudinal axis relative to the magnet frame.

Embodiments herein relate to implantable medical devices including a power subunit with a first biocompatible electrically conductive shell configured for direct contact with an in vivo environment. In some embodiments a lithium anode can be disposed within the first biocompatible electrically conductive shell in direct electrical communication with a feedthrough pin, wherein the feedthrough pin is electrically isolated from the first biocompatible electrically conductive shell. A cathode can also be disposed within the first biocompatible electrically conductive shell and can be in direct electrical communication with the first biocompatible electrically conductive shell. The first biocompatible electrically conductive shell has a positive electrical potential. The implantable medical device further includes an electronics control subunit with a control circuit disposed within a second biocompatible electrically conductive shell. Other embodiments are included herein.

A hermetically sealed feedthrough assembly for an active implantable medical device having an oxide-resistant electrical attachment for connection to an EMI filter, an EMI filter circuit board, an AIMD circuit board, or AIMD electronics. The oxide-resistant electrical attachment, including an oxide-resistant sputter layer 165 is disposed on the device side surface of the hermetic seal ferrule over which an ECA stripe is provided. The ECA stripe may comprise one of a thermal-setting electrically conductive adhesive, an electrically conductive polymer, an electrically conductive epoxy, an electrically conductive silicone, an electrically conductive polyimides, or an electrically conductive polyimide, such as those manufactured by Ablestick Corporation. The oxide-free electrical attachment between the ECA stripe and the filter or AIMD circuits may comprise one of gold, platinum, palladium, silver, iridium, rhenium, rhodium, tantalum, tungsten, niobium, zirconium, vanadium, and combinations or alloys thereof.