Abstract: According to an embodiment, a medical device is disclosed. The medical device includes an external unit and an implantable unit. The external unit includes an electronic unit operationally coupled to a transmitter coil that is configured transmit power and/or data signal over a wireless transcutaneous link, a coil unit comprising a loop structure with the transmitter coil being wound around and along at least a part of length of the loop structure, and a fixation unit configured to attach the loop structure to a user's body i) proximal to an implantable receiver coil that is configured to be implanted within a body part, and ii) around a body part of a user such that a part of the body part is positioned in a hollow section of the loop structure.

Abstract: A method of initiating operation of an external unit for a medical system further comprising an internal unit implanted into a body of a patient; a transformer core arranged under the skin of the patient; and internal cabling connecting the internal unit and the transformer core, the internal cabling comprising an internal winding around the transformer core, wherein the external unit comprises external cabling including an external winding around the transformer core to allow supply of power from the external unit to the internal unit via the transformer core, the method comprising the steps of: evaluating, by the external unit, a signal indicative of a magnetic flux in the transformer core; when the signal indicates that the magnetic flux in the transformer core is below a predefined threshold flux, providing power to the internal unit by the external unit via the transformer core.

Abstract: A medical system comprising an internal unit; a transformer core; internal cabling comprising an internal winding around the transformer core; and an external unit comprising power supply circuitry and external cabling coupled to the power supply circuitry for enabling supply of power from the power supply circuitry to the internal unit via the transformer core. The external cabling comprises a connector including a first connector part and a second connector part; a first conductive current path between the power supply circuitry and the first connector part; a second conductive current path between the power supply circuitry and the second connector part; and a third conductive current path between the first connector part and the second connector part, conductively connecting the first connector part and the second connector part.

Abstract: An implantable unit of a transcutaneous hearing device and a transcutaneous hearing device comprising the same are disclosed. The implantable unit comprises a receiver element configured to wirelessly receive an electromagnetic wave, a rectifier element configured to generate upper and lower half waveforms of the electromagnetic wave, and a vibrator element configured to electromechanically produce vibration using the half waveforms of the electromagnetic wave. The vibrator element comprises a first vibrator and a second vibrator. The first vibrator is configured to be driven by the upper half waveform of the electromagnetic wave, and the second vibrator is configured to be driven by the lower half waveform of the electromagnetic wave.

Abstract: 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.

Abstract: According to an embodiment, a medical device is disclosed. The medical device includes an external unit and an implantable unit. The external unit includes an electronic unit operationally coupled to a transmitter coil that is configured transmit power and/or data signal over a wireless transcutaneous link, a coil unit comprising a loop structure with the transmitter coil being wound around and along at least a part of length of the loop structure, and a fixation unit configured to attach the loop structure to a user's body i) proximal to an implantable receiver coil that is configured to be implanted within a body part, and ii) around a body part of a user such that a part of the body part is positioned in a hollow section of the loop structure.

Abstract: According to an embodiment, a medical device is disclosed. The medical device includes an external unit and an implantable unit. The external unit includes an electronic unit operationally coupled to a transmitter coil that is configured transmit power and/or data signal over a wireless transcutaneous link, a coil unit comprising a loop structure with the transmitter coil being wound around and along at least a part of length of the loop structure, and a fixation unit configured to attach the loop structure to a user's body i) proximal to an implantable receiver coil that is configured to be implanted within a body part, and ii) around a body part of a user such that a part of the body part is positioned in a hollow section of the loop structure.

Abstract: A mounting assembly for arranging a bone conducting hearing device to a skin surface over the skull of a user is disclosed. The mounting assembly comprises an attachment element configured to be attached to a corresponding vibrator attachment element of a vibrator assembly, the attachment element and the vibrator attachment element being adapted to operationally couple with each other; a plate member configured to be arranged over the skin surface; one or more removably arranged mounting structures arranged outside the skull for attaching the mounting assembly to the skin surface over the skull.

Abstract: An electromagnetic vibrator for a bone conduction hearing aid is disclosed. The electromagnetic vibrator comprises a magnet arrangement comprising a central portion, a coil wound around the central portion and being configured to generate a dynamic magnetic field and at least one permanent magnet configured to generate a static magnetic field. The electromagnetic vibrator further comprises a vibrator plate arranged in position and in such a manner that a gap, extending across a longitudinal axis of the electromagnetic vibrator is provided between the vibrator plate and at least one of said central portion or at least one permanent magnet. The electromagnetic vibrator further comprises an encasing surrounding at least a portion of the magnet arrangement.

Abstract: The disclosure relates to a plate structure of a non-surgical bone conductive device, configured to be attached to a part of the skin of the skull of a hearing impaired person. The non-surgical bone conductive device is designed such that an optimized vibration transfer is achieved, while at the same time allowing a sufficient leverage of the weight of the sound processor when the sound processor is connected to the plate structure.

Abstract: An implantable unit of a transcutaneous hearing device and a transcutaneous hearing device comprising the same are disclosed. The implantable unit comprises a receiver element configured to wirelessly receive an electromagnetic wave, a rectifier element configured to generate upper and lower half waveforms of the electromagnetic wave, and a vibrator element configured to electromechanically produce vibration using the half waveforms of the electromagnetic wave. The vibrator element comprises a first vibrator and a second vibrator. The first vibrator is configured to be driven by the upper half waveform of the electromagnetic wave, and the second vibrator is configured to be driven by the lower half waveform of the electromagnetic wave.

Abstract: The disclosure relates to a plate structure of a non-surgical bone conductive device, configured to be attached to a part of the skin of the skull of a hearing impaired person. The non-surgical bone conductive device is designed such that an optimized vibration transfer is achieved, while at the same time allowing a sufficient leverage of the weight of the sound processor when the sound processor is connected to the plate structure.

Abstract: A mounting assembly for arranging a bone conducting hearing device to a skin surface over the skull of a user is disclosed. The mounting assembly comprises an attachment element configured to be attached to a corresponding vibrator attachment element of a vibrator assembly, the attachment element and the vibrator attachment element being adapted to operationally couple with each other; a plate member configured to be arranged over the skin surface; one or more removably arranged mounting structures arranged outside the skull for attaching the mounting assembly to the skin surface over the skull.

Abstract: A mounting assembly for arranging a bone conducting hearing device to a skin surface over the skull of a user is disclosed. The mounting assembly comprises an attachment element configured to be attached to a corresponding vibrator attachment element of a vibrator assembly, the attachment element and the vibrator attachment element being adapted to operationally couple with each other; a plate member configured to be arranged over the skin surface; one or more removably arranged mounting structures arranged outside the skull for attaching the mounting assembly to the skin surface over the skull.

Abstract: An electromagnetic vibrator for a bone conduction hearing aid is disclosed. The electromagnetic vibrator comprises a magnet arrangement comprising a central portion, a coil wound around the central portion and being configured to generate a dynamic magnetic field and at least one permanent magnet configured to generate a static magnetic field. The electromagnetic vibrator further comprises a vibrator plate arranged in position and in such a manner that a gap, extending across a longitudinal axis of the electromagnetic vibrator is provided between the vibrator plate and at least one of said central portion or at least one permanent magnet. The electromagnetic vibrator further comprises an encasing surrounding at least a portion of the magnet arrangement.

Abstract: According to an embodiment, a medical device is disclosed. The medical device includes an external unit and an implantable unit. The external unit includes an electronic unit operationally coupled to a transmitter coil that is configured transmit power and/or data signal over a wireless transcutaneous link, a coil unit comprising a loop structure with the transmitter coil being wound around and along at least a part of length of the loop structure, and a fixation unit configured to attach the loop structure to a user's body i) proximal to an implantable receiver coil that is configured to be implanted within a body part, and ii) around a body part of a user such that a part of the body part is positioned in a hollow section of the loop structure.

Abstract: A mounting assembly for arranging a bone conducting hearing device to a skin surface over the skull of a user is disclosed. The mounting assembly comprises an attachment element configured to be attached to a corresponding vibrator attachment element of a vibrator assembly, the attachment element and the vibrator attachment element being adapted to operationally couple with each other; a plate member configured to be arranged over the skin surface; one or more removably arranged mounting structures arranged outside the skull for attaching the mounting assembly to the skin surface over the skull.

Abstract: A skull simulator tests and calibrates bone-conduction vibrators under realistic operating conditions. In known skull simulators, the front wall of the casing—and/or exposed parts of the suspension—have one or more planar surfaces on the front, and these planar surfaces are thus oriented towards the bone-conduction vibrator when it is mounted on the skull simulator. Such planar surfaces may reflect airborne sound from the vibrator housing or may emit sounds themselves when vibrating, and the reflected or emitted sound contributes to resonances are not present when the bone-conduction vibrator is mounted on a human head. In the current design all exposed parts on the front located outside a coupling surface for connecting the bone-conduction vibrator do not have planar surfaces perpendicular to the main oscillation axis or that otherwise, such planar surfaces comprising an acoustic foam having an acoustic dampening effect on sound waves impinging thereon.

Abstract: According to an embodiment, a magnetic unit assembly for a bone conducting hearing aid is disclosed. The magnetic unit assembly is implantable and comprises one or more magnetic unit and unit for attaching the one or more magnetic unit to the tissue surrounding the magnetic unit assembly when the magnetic unit assembly is implanted in the body of a hearing aid user. The magnetic unit assembly comprises unit for positioning at least a portion of the one or more magnetic unit in the soft tissue between dermis and the subcutaneous fat or the muscle/fat layer.

Abstract: A holding unit and a vibration transmission system are disclosed. The holding unit comprising a holding plate is configured to be attached to the skin by means of magnetic attraction between a number of external magnets that are either: a) integrated within the holding plate; b) mechanically attached to the holding plate; or c) constituting the holding plate and a number of internal magnets implanted under the skin of a hearing impaired person. The holding unit comprises a transmission member or plate member configured to transfer mechanical vibrations from a vibrator through the skin to the bone of the person. The transmission member or plate member is interconnected by a mechanical flexible coupling to the magnet(s) of the holding plate.