Electric apparatus and its manufacturing method

1. An electric apparatus of a bio-signal measurement system, the electric apparatus comprising:

a front part and a back part; wherein:

the electric apparatus is non-disposable;

the front part comprises a compartment at a back side of the front part, the compartment being configured to house the back part when inserted therein;

the back part comprises electric circuit conductors and an extension plate, which is configured to extend to the front part within the electric apparatus;

the extension plate comprises first electric contacts of the electric circuit conductors, the first electric contacts being configured to reside within the front part when the back part is within the compartment, the first electric contacts acting as counter-electrodes for electrodes of a front flap of a disposable patch electrode structure;

the electric apparatus is configured receive the front flap of the disposable patch electrode structure into a volume of the front part to form a contact between the first electric contacts and the electrodes of the front flap;

at least one of the back part and the front part comprises resin holes, and the compartment contains resin received through the resin holes, the resin being configured to fill the compartment, make the electric apparatus water and sweat proof, and immobilize the front part and the back part with respect to each other and to attach them together;

the electric apparatus is configured to receive the front flap with the electrodes through an opening of a front part of a lid into a volume under the lid of the front part to form a contact between the first electric contacts and the electrodes of the front flap, and

the opening, under the lid, is configured to receive side flaps at both sides of electric apparatus, and the lid is configured to cause pressure between the sides and the side flaps while the lid is closed for securing a mechanical contact between the electric apparatus and the disposable patch electrode structure.

2. The electric apparatus of claim 1 , wherein the front part comprises a wall at an end of the compartment within the front part, the wall comprising an aperture;

the extension plate is configured to extend through the aperture, shapes of the aperture and the extension plate being matched together; and

the first electric contacts being configured to reside within the front part when the extension plate has penetrated the aperture while the back part is within the compartment.

3. The electric apparatus of claim 1 , wherein a wall is configured to keep a volume of the front part within which the first electric contacts reside and the compartment as separate departments and prevent the resin from entering the volume of the front part.

4. The electric apparatus of claim 1 , wherein the front part comprises the lid and a frame part, the frame part and the lid together comprising or being mechanically connected with a quick locking mechanism configured to lock the lid in the closed position with respect to the frame part, the lid being configured to open at a face of the front part to form an opening to the front part.

5. The electric apparatus of claim 1 , wherein the electric apparatus is configured to slide on a main structure of the disposable patch electrode structure toward the front flap of the patch electrode structure with the face ahead, and

the lid is configured to cause pressure between the first electric contacts and the electrodes of the front flap while the lid is closed.

6. The electric apparatus of claim 1 , wherein the front part and the back part together comprise a non-openable instant interlocking structure which is configured to attach the front part and the back part together and prevent them from moving with respect to each other.

7. A method of manufacturing an electric apparatus of a bio-signal measurement system, the method comprising:

inserting a back part of the electric apparatus into a compartment of a front part of the electric apparatus, the back part comprising electric circuit conductors and an extension plate;

guiding the extension plate, which comprises first electric contacts of the electric circuit conductors, into the front part while inserting the back part within the compartment, the first electric contacts acting as counter-electrodes for electrodes of a front flap of a disposable patch electrode structure and the electric apparatus being configured receive the front flap of the disposable patch electrode structure into a volume of the front part for a contact between the first electric contacts and the electrodes of the front flap; and

filling the compartment with resin received through the resin holes which are part of at least one of the back part and the front part, the resin being configured to fill the compartment, make the electric apparatus water and sweat proof, and immobilize the front part and the back part with respect to each other and to attach them together,

wherein the electric apparatus is non-disposable,

wherein the electric apparatus is configured to receive the front flap with the electrodes through an opening of a front part of a lid into a volume under the lid of the front part to form a contact between the first electric contacts and the electrodes of the front flap, and

wherein the opening, under the lid, is configured to receive side flaps at both sides of electric apparatus, and the lid is configured to cause pressure between the sides and the side flaps while the lid is closed for securing a mechanical contact between the electric apparatus and the disposable patch electrode structure.

8. The method of claim 7 , wherein the front part comprises a wall at an end of the compartment within the front part, the wall comprising an aperture;

the extension plate is configured to extend through the aperture, shapes of the aperture and the extension plate being matched together; and

the first electric contacts being configured to reside within the front part when the extension plate has penetrated the aperture while the back part is within the compartment.

9. The method of claim 7 , wherein a wall is configured to keep a volume of the front part within which the first electric contacts reside and the compartment as separate departments and prevent the resin from entering the volume of the front part.

10. The method of claim 7 , wherein the front part comprises the lid and a frame part, the frame part and the lid together comprising or being mechanically connected with a quick locking mechanism configured to lock the lid in the closed position with respect to the frame part, the lid being configured to open at a face of the front part to form an opening to the front part.

11. The method of claim 7 , wherein the electric apparatus is configured to slide on a main structure of the disposable patch electrode structure toward the front flap of the patch electrode structure with the face ahead, and

the lid is configured to cause pressure between the first electric contacts and the electrodes of the front flap while the lid is closed.

12. The method of claim 7 , wherein the front part and the back part together comprise a non-openable instant interlocking structure which is configured to attach the front part and the back part together and prevent them from moving with respect to each other.