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Implantable medical device comprising a wireless transcutaneous link

專利號(hào)
US11968502B2
公開日期
2024-04-23
申請人
Oticon Medical A/S(DK Sm?rum)
發(fā)明人
Bengt Bern
IPC分類
A61N1/05; A61B5/00; A61N1/372; A61N1/378; H01F38/14; H01Q7/06; H04R1/10; H04R25/00; A44C7/00; A61M5/142; A61M5/172; A61M60/148; A61N1/36; A61N1/375
技術(shù)領(lǐng)域
coil,loop,receiver,structure,unit,body,in,fixation,configured,part
地域: Sm?rum

摘要

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. The implantable unit includes the implantable receiver coil configured to receive the power and/or data signal over the wireless transcutaneous link, a processing unit configured to i) process the received data signal to control functionalities of at least one of the components of the implantable unit, and/or ii) utilize the received power for operation of at least one of the components of the implantable unit. The wireless transcutaneous link includes a coupling between the transmitter coil and the receiver coil, and when the loop structure is attached using the fixation unit, at least a substantial number of magnetic field lines generated in response to excitation of the transmitter coil passes through the implantable receiver coil.

說明書

In another embodiment, the loop structure is defined by a geometrical shape that includes an open curve, defining an open loop structure, wherein a point moving along the open curve forms a path from a starting point to a final point that is proximal to but separated from the starting point by a distance. The distance is typically a function of a thickness of the body tissue and/or skin to which the loop structure is attached, i.e. the distance is configured such that the loop structure is attachable to the user's body. The distance is selected from a group consisting of a length that is smaller than the thickness of the body tissue, a length that is more than the thickness of the body tissue but is adapted to be reduced such that the changed length is smaller than the thickness of the body tissue, and a length that is less (may even be close to zero) than the thickness of the body tissue but is adapted to be increased such that the changed length is slightly smaller than the thickness of the body tissue. In these alternatives, it is apparent that the length smaller or slightly smaller than the thickness of the body tissue is adapted in a way such that a compressive retention force between a first end (i.e. first point of the geometrical shape) and a second end (i.e. second point of the geometrical shape) against the body tissue is applied. The skilled person would appreciate that the distance may be changed in order to achieve a balance between reliable retention and user comfort, especially for extended wearing of the medical device.

In different embodiments, the loop structure may include shape that is selected from a circular, elliptical, rectangular, square, polygonal shape, curved shape or a combination thereof.

權(quán)利要求

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