TREATMENT APPARATUS

1 . A treatment apparatus comprising:

an electrothermal conversion element comprising:

a substrate having a first part and a second part; and

an electric resistance pattern arranged to at least the first part of the substrate, wherein the electric resistance pattern is configured to convert a first electric energy to heat;

a heat transfer plate having:

a first surface configured to contact a body tissue; and

a second surface thermally coupled with the electrothermal conversion element,

wherein the heat transfer plate is configured to conduct the heat from the second surface to the first surface, and

wherein the second part of the substrate extends past and away from an end of the heat transfer plate; and

a restricting structure arranged to be spaced apart from the second surface of the heat transfer plate,

wherein the restricting structure is configured to restrict a movement of the first part of the substrate in a direction away from the second surface of the heat transfer plate.

2 . The treatment apparatus according to claim 1 ,

wherein the electrothermal conversion element further comprises a first lead connection arranged to at least the second part of the substrate, and

wherein the first lead connection is electrically connected to the electric resistance pattern to conduct the first electric energy to the electric resistance pattern.

3 . The treatment apparatus according to claim 1 , wherein the restricting structure is arranged to a base end of the heat transfer plate.

4 . The treatment apparatus according to claim 1 , wherein the restricting structure is configured to exert a force against the second part of the substrate of the electrothermal conversion element to restrict the movement of the first part of the substrate in the direction away from the second surface of the heat transfer plate.

5 . The treatment apparatus according to claim 1 , further comprising:

an adhesive sheet configured to adhere the electrothermal conversion element to the second surface of the heat transfer plate,

wherein the adhesive sheet is configured to conduct the heat from the electrothermal conversion element to the heat transfer plate.

6 . The treatment apparatus according to claim 5 ,

wherein the electrothermal conversion element further comprises a first lead connection arranged to the second part of the substrate extending past and away from the end of the heat transfer plate,

wherein the first lead connection is electrically conductive and is electrically connected to the electric resistance pattern to apply the first electric energy to the electric resistance pattern,

wherein the adhesive sheet has an electric insulation property, and

wherein the adhesive sheet extends past and away from the end of the heat transfer plate to insulate the first lead connection from the heat transfer plate.

7 . The treatment apparatus according to claim 5 , wherein the adhesive sheet is arranged to adhere the electrothermal conversion element to at least the second surface of the heat transfer plate at the end of the heat transfer plate.

8 . The treatment apparatus according to claim 1 ,

wherein the electrothermal conversion element further comprises a first lead connection arranged to the second part of the substrate extending past and away from the end of the heat transfer plate, and

wherein the first lead connection is electrically conductive and is electrically connected to the electric resistance pattern to apply the first electric energy to the electric resistance pattern.

9 . The treatment apparatus according to claim 1 , further comprising:

a second lead connection arranged to the second part of the substrate extending past and away from the end of the heat transfer plate,

wherein the first surface of the heat transfer plate is electrically conductive, and

wherein the restricting structure is electrically conductive and electrically connects the second lead connection and the first surface of the heat transfer plate to apply a second electric energy from the second lead connection to the first surface of the heat transfer plate.

10 . The treatment apparatus according to claim 1 , further comprising:

a cover configured to engage the heat transfer plate to cover the electrothermal conversion element.