CPC A61B 5/4851 (2013.01) [A61B 5/0002 (2013.01); A61B 5/0024 (2013.01); A61B 5/1114 (2013.01); A61F 2/12 (2013.01); A61F 2/3662 (2013.01); A61F 2/389 (2013.01); H04W 4/08 (2013.01); H04W 4/70 (2018.02); A61B 5/686 (2013.01); A61B 2562/0219 (2013.01); A61F 2/482 (2021.08); A61F 2250/0002 (2013.01)] | 18 Claims |
1. An implantable medical device configured for implant in an elongated cavity formed in a bone, the elongated cavity extending from an open end at a surface of the bone to a closed end at a depth within the bone, the implantable medical device comprising:
an electronics assembly including:
a case; and
a printed circuit assembly comprising three rigid printed circuit boards that are each secured to a flexible interconnect and are physically and electrically coupled together by way of the flexible interconnect, where a first and a second of the three rigid printed circuit boards are spaced apart from one another along a first length of the flexible interconnect and the second and a third of the three rigid printed circuit boards are spaced apart from one another along a second length of the flexible interconnect, where the first length of the flexible interconnect is folded between the first and second rigid printed circuit boards and the second length of the flexible interconnect is folded between the second and third rigid printed circuit boards to thereby stack the first rigid printed circuit board between the second rigid printed circuit board and the third rigid printed circuit board, and where the stacked arrangement of the three rigid printed circuit boards and the folded lengths of the flexible interconnect has a form factor that fits within the case;
a power component coupled to the electronics assembly;
an antenna component coupled to and extending longitudinally from the electronics assembly; and
an elongated casing comprising a central section and a radome extending longitudinally from the central section, the elongated casing sized to extend into the elongated cavity with the radome adjacent the closed end of the elongated cavity, wherein the central section comprises an interior configured to house the electronics assembly and the power component, and the antenna component is exterior to the interior of the central section and the radome comprises an interior configured to surround the antenna component.
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