US 12,213,809 B2
In-vivo implantable medical device
Norikazu Sakamoto, Nagaokakyo (JP); Tatsuya Hosotani, Nagaokakyo (JP); and Kiyokazu Yamada, Nagaokakyo (JP)
Assigned to Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed by Murata Manufacturing Co., Ltd., Kyoto-fu (JP)
Filed on Jan. 29, 2021, as Appl. No. 17/162,610.
Application 17/162,610 is a continuation of application No. PCT/JP2019/016304, filed on Apr. 16, 2019.
Claims priority of application No. 2018-181758 (JP), filed on Sep. 27, 2018.
Prior Publication US 2021/0152021 A1, May 20, 2021
Int. Cl. A61B 5/00 (2006.01); A61L 31/02 (2006.01); A61L 31/08 (2006.01); H01F 27/28 (2006.01); H01F 38/14 (2006.01); H02J 7/02 (2016.01); H02J 50/00 (2016.01); H02J 50/12 (2016.01); H02J 50/80 (2016.01); A61N 1/04 (2006.01); A61N 1/05 (2006.01); A61N 1/08 (2006.01); A61N 1/36 (2006.01); H01F 27/24 (2006.01); H02J 50/70 (2016.01)
CPC A61B 5/686 (2013.01) [A61B 5/0026 (2013.01); A61B 5/0031 (2013.01); A61L 31/022 (2013.01); A61L 31/026 (2013.01); A61L 31/028 (2013.01); A61L 31/082 (2013.01); H01F 27/28 (2013.01); H01F 38/14 (2013.01); H02J 7/02 (2013.01); H02J 50/005 (2020.01); H02J 50/12 (2016.02); H02J 50/80 (2016.02); A61B 5/0036 (2018.08); A61B 2560/02 (2013.01); A61B 2560/0219 (2013.01); A61B 2560/0406 (2013.01); A61L 31/024 (2013.01); A61L 2400/18 (2013.01); A61N 1/0472 (2013.01); A61N 1/05 (2013.01); A61N 1/0529 (2013.01); A61N 1/056 (2013.01); A61N 1/08 (2013.01); A61N 1/3605 (2013.01); A61N 1/36062 (2017.08); H01F 27/24 (2013.01); H02J 50/70 (2016.02)] 29 Claims
OG exemplary drawing
 
1. An in-vivo implantable medical device, comprising:
a housing including a biocompatible material, and configured to define an internal space sealed;
a power reception coil disposed in the internal space and configured to interact with an electromagnetic field generated by an electric field or magnetic field at an outside and generate an electromagnetic resonance field to receive power;
a power storage device disposed in the internal space and configured to store power received through the power reception coil;
a circuit board disposed in the internal space and including a first main surface and a second main surface opposite the first main surface;
an electronic circuit disposed in the internal space and configured to perform at least signal processing by using power received by the power reception coil or power stored in the power storage device, the electronic circuit including an electronic component mounted on the first main surface; and
a magnetic material directly attached to the second main surface of the circuit board,
wherein the circuit board extends along an entirety of the magnetic material,
wherein at least part of a region of the housing in which the electromagnetic resonance field is generated includes a biocompatible nonmetal material, and
the power reception coil is a planar coil directly attached to the magnetic material on the second main surface of the circuit board.