A needle guiding arrangement, for guiding a surgical needle when applying sutures joining two skin surfaces inside an opening of a transformer core to implant the transformer core under the skin of a patient, the needle guiding arrangement comprising: a first needle guiding member; a second needle guiding member; and an alignment arrangement configured to align the first needle guiding member and the second needle guiding member on opposite sides of the opening of the transformer core along an alignment axis passing through the first needle guiding member, the opening of the transformer core and the second needle guiding member.

A cochlear implant including a cochlear lead, an antenna, a stimulation processor, and a magnet apparatus, associated with the antenna, including a case and a magnet assembly, having a spine and at least one magnet that is secured to the spine, that is located within the case and is rotatable relative to the case.

A system is provided for driving an implantable neurostimulator lead, the lead having an associated plurality of electrodes disposed in at least one array on the lead. The system comprises an implantable pulse generator (IPG), the IPG including an electrode driver, a load system for determining load requirements, an IPG power coupler, and an IPG communication system. The system also includes an external unit, which includes an external variable power generator, an external power coupler, an external communication system, and a controller for varying the power level of the variable power generator.

A medical apparatus for a patient comprises an external system and an implantable system. The external system is configured to transmit one or more transmission signals, each transmission signal comprising at least power or data. The implantable system is configured to receive the one or more transmission signals from the external system, and to deliver stimulation energy to the patient. Methods of delivering stimulation energy are also provided.

A magnetic system for a medical implant system is described. A planar implant receiver coil is configured to lie underneath and parallel to overlying skin of an implanted patient for transcutaneous communication of an implant communications signal. A planar ring-shaped attachment magnet also is configured to lie underneath and parallel to the overlying skin and radially surrounds the receiver coil. The attachment magnet is characterized by a magnetic field configured to avoid creating torque on the attachment magnet in the presence of an external magnetic field.

A medical apparatus for a patient comprises an external system and an implantable system. The external system is configured to transmit one or more transmission signals, each transmission signal comprising at least power or data. The implantable system is configured to receive the one or more transmission signals from the external system, and to deliver stimulation energy to the patient. Methods of delivering stimulation energy are also provided.

An implantable device for detecting an antenna misalignment with respect to a transmitting implantable device in a near field communication system comprises an antenna unit configured to receive signals through a body channel from the transmitting implantable device. The antenna unit comprises at least two pairs of electrodes configured to cover a blind angle of a radiation pattern of the transmitting implantable device. The implantable device further comprises a processing unit electrically coupled to the antenna unit and configured to detect the antenna misalignment of the at least two pairs of electrodes with respect to the transmitting implantable device.

A medical apparatus is provided comprising a delivery device and an algorithm. The delivery device comprises: a plurality of electrodes, a first lead, and a second lead. The plurality of electrodes comprises a first set of electrodes comprising one or more electrodes, and a second set of electrodes comprising one or more electrodes. The first lead comprises the first set of electrodes, and the second lead comprises the second set of electrodes. The delivery device is configured to measure impedance between multiple pairs of electrodes of the plurality of electrodes. The algorithm is configured to determine position information of the first lead and/or the second lead.

An antenna for an implantable medical device, the antenna being configured for inductive wireless power transfer and/or near-field magnetic induction communication, the antenna comprising at least one coil or at least one set of coils, each coil comprising several windings. Furthermore, the present disclosure relates to an implantable medical device (IMD).

The present disclosure relates to an improved transcutaneous energy transfer (TET) system that generates and wirelessly transmits a sufficient amount of energy to power one or more implanted devices, including a heart pump, while maintaining the system's efficiency, safety, and overall convenience of use. The disclosure further relates one or more methods of operation for the improved system.