Biometric information detection device and method of producing the same, biometric information detection module and method of producing the same

1. A biometric information detection device which is configured to be installed in an oral cavity, comprising:

a sensor;

a battery;

a mechanical switch that switches between a conduction state in which power is supplied from the battery to the sensor and a cutoff state in which supply of the power is blocked;

a sealing member that seals all of the sensor, the battery, and the mechanical switch, and is configured to cover gums in the oral cavity; and

a holding member that is configured to be attached to teeth in the oral cavity, and holds the sealing member, wherein

the mechanical switch includes an operation unit that is sealed within the sealing member at a position on an opposite side of at least a portion of the sealing member to the gums to accept a pushing operation.

2. The biometric information detection device according to claim 1 ,

wherein the mechanical switch is a self-holding type switch.

3. The biometric information detection device according to claim 1 ,

wherein the mechanical switch further includes a first conductor, and a second conductor,

wherein the operation unit is configured to perform a contact operation of bringing the first conductor into contact with the second conductor and a separation operation of separating the first conductor from the second conductor, and

wherein, within the sealing member, a first part covering the operation unit is recessed more than a second part covering the periphery of the operation unit.

4. The biometric information detection device according to claim 1 ,

wherein the battery has an electrode structure; and an exterior member which includes a main body area covering the electrode structure and a sealing area protruding from the main body area, and in which the electrode structure is enclosed, and

wherein the sealing area of the exterior member surrounds at least a part of the mechanical switch.

5. The biometric information detection device according to claim 4 ,

wherein the mechanical switch further includes a first conductor, and a second conductor,

wherein the operation unit is configured to perform a contact operation of bringing the first conductor into contact with the second conductor and a separation operation of separating the first conductor from the second conductor, and is provided in the main body area or the sealing area of the exterior member,

wherein the sealing area of the exterior member has an eaves part positioned on the side opposite to the main body area of the exterior member in a view from the operation unit, and

wherein the eaves part has an opening or a notch provided at a position corresponding to the operation unit.

6. The biometric information detection device according to claim 1 ,

wherein the sensor includes a light emitting element that is able to emit light and a light receiving element that is able to receive the light emitted from the light emitting element, and

wherein the sealing member includes a first light-transmitting part that covers the light emitting element and is able to transmit the light, and a second light-transmitting part that covers the light receiving element and is able to transmit the light.

7. The biometric information detection device according to claim 6 ,

wherein the light emitting element is configured to be disposed to face the gums in the oral cavity with the first light-transmitting part therebetween, and

wherein the light receiving element is disposed to face the gums in the oral cavity with the second light-transmitting part therebetween.

8. The biometric information detection device according to claim 6 ,

wherein the light emitting element is configured to be disposed to face an inner surface of a cheek in the oral cavity with the first light-transmitting part therebetween, and

wherein the light receiving element is configured to be disposed to face an inner surface of the cheek with the second light-transmitting part therebetween.

9. The biometric information detection device according to claim 6 ,

wherein the light has a wavelength of 400 nm or more and 1,000 nm or less.

10. The biometric information detection device according to claim 6 , further comprising

a signal processing unit that is sealed with the sealing member, receives supply of power from the battery, and generates a data signal based on an output signal from the sensor, and

a transmitting and receiving unit that is sealed with the sealing member and receives supply of power from the battery, is able to transmit the data signal from the signal processing unit to an external device, and is able to receive a control signal from the external device.

11. The biometric information detection device according to claim 6 ,

wherein the first light-transmitting part and the second light-transmitting part are formed of a thermoplastic polymer compound.

12. The biometric information detection device according to claim 1 ,

wherein the sensor is a pulse wave sensor, a pulse oximeter or a glucose sensor.

13. The biometric information detection device according to claim 1 ,

wherein the holding member and the sealing member are an integrally formed mouthpiece.

14. The biometric information detection device according to claim 1 , further comprising

another sensor configured to measure a physical quantity.

15. A method of producing a biometric information detection device according to claim 1 , the method comprising:

preparing the sensor, the battery, and the mechanical switch;

inserting the sensor, the battery and the mechanical switch between a pair of sealing films, then heating and molding the pair of sealing films, and thereby forming a sealing member with which the sensor, the battery, and the mechanical switch are sealed; and

forming the holding member.

16. The method of producing a biometric information detection device according to claim 15 ,

wherein the sealing member and the holding member are integrally formed by the molding.

17. The biometric information detection device according to claim 1 ,

wherein the mechanical switch is configured to accept the pushing operation in a direction toward the gums.