In-vivo implantable medical device
AssigneeMurata Manufacturing Co., Ltd.
InventorsNorikazu Sakamoto, Tatsuya Hosotani, Kiyokazu Yamada
Life of this patent
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Abstract
An in-vivo implantable medical device includes a housing, an electronic circuit component, a power reception coil, and a magnetic material. The housing is formed of a biocompatible material and forms an internal space. The electronic circuit component is disposed in the internal space. The power reception coil is disposed in the internal space, interacts with an external electromagnetic field to form an electromagnetic resonance field to receive power. At least part of a region of the housing in which the electromagnetic resonance field is formed is formed of a biocompatible nonmetal material.
Claims29
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.
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;
- 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 signal processing with power received by the power reception coil, 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 a region of the housing, in which the power reception coil faces an outside of the housing, 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.
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;
- 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 signal processing with power received by the power reception coil, 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 the housing includes a portion made of a biocompatible nonmetal material in a power reception path of power by the power reception coil,
- a region of the housing other than a region including the biocompatible nonmetal material includes a biocompatible metal 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.
Dependencies are inferred from the claim text.