A wireless power transfer system in which the driver and control circuitry are located within the electromagnetic field of the power transmission antenna, e.g., a charging coil. The power transfer system may be contained in a flexible housing, which change shape using one or more hinges, be formed of a conformable material and so on. Changes in the relative location of the antenna and the circuitry may cause interference in the circuitry and loading of the antenna, which in turn may impact the electromagnetic field output by the antenna. The wireless power system may include sensors that provide an indication of an amount of deformation of the system. The driver circuitry of this disclosure may receive an indication of the relative location of the circuitry to the antenna and compensate for changes in the output electromagnetic field caused by changes in the relative location.

User interface for external power source, recharger, for an implantable medical device. At least some of patient controls and display icons of an energy transfer unit are common with at least some of the patient controls and the display icons of a patient control unit. An energy transfer unit is operable by the patient with less than three operative controls to control energy transfer from the external energy transfer unit to the implantable medical device. An external antenna having a primary coil can inductively transfer energy to a secondary coil of the implantable medical device when the external antenna is externally placed in proximity of the secondary coil. An energy transfer unit has an external telemetry coil allowing the energy transfer unit to communicate with the implantable medical device through the internal telemetry coil in order to at least partially control the therapeutic output of the implantable medical device.

An implantable wireless lead includes an enclosure, the enclosure housing: one or more electrodes configured to apply one or more electrical pulses to a neural tissue; a first antenna configured to: receive, from a second antenna and through electrical radiative coupling, an input signal containing electrical energy, the second antenna being physically separate from the implantable neural stimulator lead; one or more circuits electrically connected to the first antenna, the circuits configured to: create the one or more electrical pulses suitable for stimulation of the neural tissue using the electrical energy contained in the input signal; and supply the one or more electrical pulses to the one or more electrodes, wherein the enclosure is shaped and arranged for delivery into a subject's body through an introducer or a needle.

An antenna assembly for use with a medical implant includes an antenna that defines at least one turn and an electromagnetic shield.

Embodiments described herein relate to implantable medical devices (IMDs) and methods for use therewith. Such a method includes using an accelerometer of an IMD (e.g., a leadless pacemaker) to produce one or more accelerometer outputs indicative of the orientation of the IMD. The method can also include the IMD using an accelerometer to identify when the orientation of the IMD is such that the IMD will likely be able to successfully communicate with another IMD via one or more communication pulses sent from the IMD to the other IMD. The method also includes the IMD sending of the one or more communication pulses, that are used to communicate with the other IMD, when the orientation of the IMD is such that the IMD will likely be able to successfully communicate with the other IMD via one or more communication pulses sent from the IMD to the other IMD.

Disclosed herein is an implantable electronic device. In one embodiment, the device has a modular header-feedthru assembly and a housing. The modular header-feedthru assembly has a conductor assembly, a feedthru coupled to the conductor assembly, and a polymer header that is injected molded about the conductor assembly and at least a portion of the feedthru. The housing is welded to the feedthru.

An apparatus is provided for remotely powering an implantable medical device (IMD) positioned at a target treatment location within a patient. The apparatus is configured to be positioned at or near an external skin surface of the patient in proximity to the target treatment location. The apparatus includes an induction coil which, when placed in proximity to the IMD, forms an inductive transcutaneous power link with the IMD such that when the induction coil is supplied with a current, the induction coil inductively and transcutaneously delivers power to the IMD. An aerogel layer is disposed between the induction coil and the patient's skin surface. The aerogel layer is configured to receive heat generated from the induction coil and regulate heat dissipation from the aerogel layer to minimize heat transfer to the patient.

A stimulation system for delivery of a stimulation signal to a hypoglossal nerve of a patient to treat obstructive sleep apnea. The stimulation system includes an implantable receiver coil configured to be implanted under a mandible of the patient; a nerve electrode coupled to the implantable receiver coil, the nerve electrode configured to deliver the stimulation signal to the hypoglossal nerve of the patient; an external pulse generator configured to generate the stimulation signal; and an external transmitter coil configured to wirelessly transmit the stimulation signal from the external pulse generator to the implantable receiver coil, the external transmitter coil being carried by an adhesive patch configured to be placed on the skin adjacent the implantable receiver coil under the mandible of the patient.

A bone growth stimulator includes an antenna configured to receive electromagnetic signals in a radio frequency band, and a controller having a power source including a supercapacitor electrically connected to the antenna. The supercapacitor stores a charge in accordance with the electromagnetic signals received by the antenna. The bone growth stimulator further includes a cathode extending from the controller to a desired location of bone growth and an anode electrically connected to the power source and extending from the controller. Electrical energy travelling from the anode to the cathode stimulates bone growth in a patient.

A method for producing an implantable medical device (IMD) includes forming a channel along a surface of a housing of the IMD, and depositing a conductive material into the channel to at least partially fill the channel and form an antenna of the IMD on the housing. The method also includes electrically connecting the antenna to communication circuitry contained within the housing to facilitate wireless communication with at least one of a second IMD or an external device.