Devices that communicate using wireless proximal communications measure pulse width to find distortion in the received signal. The distortion may be due to the devices being too close to one another for a transmission power level currently being used which causes ringing of a receiving coil. The distortion may be used to find a correction that the receiving device may use to correct for the distortion in the received pulse train when decoding the pulse train. The distortion may be used to adjust a transmission power level of the receiving device and/or to send an instruction to the transmitting device to adjust the power transmission power level of the transmitting device. The distortion may be used for other purposes including determining a device depth and/or location for an implanted device, such as an implantable medical device within a body of a patient.

Disclosed herein are an electrode assembly, an in-ear headphone, an in-ear headphone pair, and an electrode pair assembly, each for non-invasive vagus nerve stimulation. Each of the foregoing items includes a first electrode and a second electrode. An electrode assembly configured for insertion into an ear of a user includes a first electrode, a second electrode, and a shim positioned therebetween. An in-ear headphone or headphone pair may include the electrode assembly with a housing and a waveform generator. An electrode pair assembly may include a first electrode configured for insertion into a first ear of a user, and a second electrode configured for insertion into a second ear of the user. Certain embodiments further include audio components positioned within a housing of at least one in-ear headphone to deliver audio stimulation through a central channel of a first electrode or second electrode, respectively.

Presented herein are techniques for enhancing a hearing prosthesis recipient's perception of multiple frequencies present in received sound signals. The hearing prosthesis is configured to extract a plurality of frequencies from the received sound signals and to use the plurality of frequencies to modulate the amplitudes of different stimulation pulse sequences that are to be delivered to the recipient via different stimulation channels. The hearing prosthesis may also adapt a stimulation resolution of the stimulation pulse sequences when delivering the modulated stimulation pulses sequences to the recipient.

A subcutaneously implantable device includes a housing, a clip attached to a top side of the housing, an electrode, a prong, and a sensor in the prong. The clip is configured to anchor the device to a muscle, a bone, and/or first tissue. The electrode is configured to contact an organ, a nerve, the first tissue, and/or second tissue. The prong is configured to contact the organ, the nerve, and/or the second tissue. The electrode is positioned on the distal end of the prong. The sensor is operable to sense a physiological parameter and includes a temperature sensor, an accelerometer, a pressure sensor, a proximity sensor, an infrared sensor, an optical sensor, or an ultrasonic sensor. Circuitry in the housing is in electrical communication with the sensor and the electrode and is configured to sense electrical signals, deliver electrical stimulation, and/or to deliver a signal to a drug pump.

A system is provided for wireless transmission of data and/or power using an on-body antenna apparatus (40) and an implant device inside the body. The system comprises the implant device and the on-body antenna apparatus (40) as well as an antenna control system. The implant device, is for use within the body and comprises an implant antenna (16) arranged to receive wirelessly transmitted power and/or to wirelessly transmit data. The on-body antenna apparatus (40) is arranged to transmit power and/or data acting as a radiative antenna, wherein the on-body antenna apparatus (40) comprises a pair of patch antennas (42) arranged to be placed on the surface of the body (44) spaced apart from one another to form an antenna circuit that is coupled by the body tissue around and between the patch antennas (42). The antenna control system is for providing power to the on-body antenna apparatus (40) and/or for handling communications between the on-body antenna apparatus (40) and the implant antenna (16), wherein the antenna control system is arranged to drive the on-body antenna apparatus (40).

A medical implant includes a sensor that detects electromagnetic waves; and a data transmission unit that can wirelessly transmit data supplied by the sensor to a receiving unit.

A subcutaneously implantable device is implantable into a body of a patient, and includes a prong and an electrode. The prong has a contact portion at or adjacent to a distal end thereof that is configured to contact an organ. The prong is constructed to apply pressure to the organ with spring action so as to maintain contact between the contact portion and the organ without fixing the contact portion to the organ. The electrode is provided at the contact portion of the prong, is configured to contact the organ, and is electrically coupled or couplable with circuitry that is configured to provide monitoring, therapeutic, and/or diagnostic capabilities with respect to the organ.

Techniques for pairing an external device such as a clinician programmer (CP) to an implantable medical device (IMD) are disclosed, which involve use of a remote controller (RC) paired to the IMD. The RC is placed into a CP pairing mode, which acts differently depending on the type of IMD paired to the RC. If the IMD is RF based, the CP pairing mode places the IMD in a pairing mode, thus allowing the CP to connect directly with the IMD via a RF telemetry protocol. If the IMD is magnetic-induction based, the CP pairing mode causes the RC to advertise its presence to the CP, allowing the CP to connect to the RC via the RF telemetry protocol. Because the RC is also paired with the IMD via a magnetic induction telemetry protocol, the RC acts as a passthrough device to allow communications between the CP and the IMD.

Techniques for facilitating improved power management for an implantable device are provided. In one example, an implantable device includes a telemetry circuit and a power management circuit. The telemetry circuit is configured to facilitate a telemetry session between the implantable device and an external device. The power management circuit is configured to connect a power supply to the telemetry circuit via a first current-limiting device based on a determination that the telemetry circuit satisfies a defined criterion. The power management circuit is also configured to connect the telemetry circuit to a second current-limiting device based on a determination that the telemetry circuit is connected to the first current-limiting device for a defined period of time.

A medical device is configured to determine a rate smoothing pacing interval based on at a ventricular cycle length ending with a ventricular pacing pulse and determine a post-sense ventricular pacing interval based on a ventricular cycle length ending with a sensed ventricular event signal. The medical device may be configured to start a ventricular pacing interval set to the post-sense ventricular pacing interval in response to the sensed ventricular event signal and generate a ventricular pacing pulse in response to the expiration of the post-sense ventricular pacing interval.