HK1170969B - Electric potential treatment device - Google Patents

Description

Electric potential therapeutic device

Technical Field

The present invention relates to an electric potential therapy apparatus for applying a high electric potential to a human body to form an electric field around the human body for therapy, and more particularly, to an electric potential therapy apparatus which can ensure safety of the human body and can be simplified in structure.

Background

The electric potential therapy apparatus is an apparatus for performing therapy by utilizing a biostimulation effect by an electric field formed around a human body by applying a high electric potential to the human body to be insulated. Conventionally, as such a potential treatment device, a configuration has been proposed in which a conduction station is integrated with a treatment chair, and a foot of a patient is mounted on the conduction station to have a high potential (see, for example, patent document 1).

As shown in fig. 10, such a potential treatment device 101 includes a potential treatment unit 102 and a high voltage generation device 103. The potential treatment device 102 includes a chair 104 on which the person to be treated C sits, a power-on stand 105 on which the feet of the person to be treated C are placed, and an insulating stand 106. The current-carrying stage 105 is covered with an insulator, and a lower electrode 107 is embedded therein.

The high voltage generation device 103 includes: a controller 108 which controls each part of the structure and also serves as a safety device; a step-up transformer 109 for stepping up the voltage of the utility power Sd; an on-off switch 111 provided on the primary side of the step-up transformer 109; and a safety resistor 112 for increasing an output impedance to prevent an electric shock caused by the lower electrode 107. The high potential is applied to the person C to be treated while the person C is seated on the chair 104 and insulated from the ground (earth). Further, the output is turned off when the current flowing from the potential treatment device 101 increases, thereby ensuring the safety of the person C to be treated.

However, when the person (human body) C standing on the floor and at the ground potential comes into contact with the power-on table 105 to which the high potential is applied at the start of treatment, and when the person (human body) C standing on the floor and at the high potential after treatment is left on the floor at the ground potential, the person (human body) C receives an electric shock. Therefore, when the patient stands on or off the electric potential treatment instrument 102, the patient needs to stand on the insulating stand 106 insulated from the ground to insulate the human body.

Prior art documents

Patent document

Patent document 1: japanese unexamined patent publication No. 5-123405

Technical problem to be solved by the invention

However, in the above-described conventional technique, in order to prevent electric shock, when the patient sits on and stands off the electric potential treatment device 101, the patient needs to stand on the insulating base 106 to insulate the human body, which is troublesome for the patient C and complicates the structure of the electric potential treatment device. Further, since the output is turned off when the current flowing from the potential treatment device increases, a high potential is applied even if the person C is not treated, which causes waste and deterioration of the potential treatment device due to the high potential.

Disclosure of Invention

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an electric potential treatment device which can simplify the structure and prevent deterioration.

Means for solving the problems

In order to solve the above-described problem, an electric potential treatment device according to the invention of claim 1 is an electric potential treatment device for performing treatment by bringing a subject to be treated to a high electric potential, the electric potential treatment device including: a main electrode to which a high voltage is applied for therapy; high voltage generating means for applying a high voltage to the main electrode; and a detection electrode for detecting seating of the subject; the high voltage generating device applies a low voltage lower than the high voltage to the main electrode before applying the high voltage for treatment to the main electrode, and the high voltage generating device includes a seating detection means for detecting an induced current flowing in the detection electrode due to seating of the person to be treated in a state where the low voltage is applied to the main electrode, thereby detecting a seating state of the person to be treated.

In the invention according to claim 1, the high voltage generating device applies a low voltage lower than the high voltage for therapy to the main electrode, and the seating detection means detects the seating state of the subject by detecting the induced current flowing in the detection electrode by seating of the subject.

The invention according to claim 2 is the electric potential treatment device according to claim 1, comprising: a high voltage application possibility determination unit that determines that the therapeutic high voltage can be applied to the main electrode when the sitting position detection unit detects a sitting position state of the subject; and a high voltage application control unit that, when it is determined that the high voltage can be applied, causes the high voltage to be applied to the main electrode.

The invention according to claim 3 is characterized in that the sitting detection means detects a current smaller than a predetermined value due to no sitting of the subject in a state where the high voltage is applied to the main electrodes, and detects the no-sitting state of the subject; the electric potential therapy device is provided with: an output disconnection necessity determination unit that determines that it is necessary to disconnect the output of the high voltage when the sitting detection unit detects an unseated state of the subject; and an output disconnection control unit that disconnects the output of the high voltage when it is determined that the output of the high voltage needs to be disconnected.

The invention according to claim 4 is characterized in that the potential treatment device includes a first main electrode and a second main electrode as the main electrodes, and polarity control means for controlling phases of a first low voltage and a second low voltage to be in phase when the first low voltage and the second low voltage are applied to the first main electrode and the second main electrode, respectively.

The electric potential treatment apparatus according to claim 4 of claim 5 is characterized in that the polarity control means controls the phases of the first high voltage and the second high voltage to be reversed when the first high voltage and the second high voltage, which are the high voltages, are applied to the first main electrode and the second main electrode, respectively.

The invention has the following effects:

according to the invention of claim 1, the low potential that does not pose a risk of electric shock is applied to the main electrode, so that the sitting position of the person to be treated can be detected by the sitting position detection means by detecting a change in the current value while ensuring the safety of the person to be treated.

According to the invention of claim 2, since the high voltage application possibility determining means determines that the high voltage can be applied to the main electrodes and the high voltage application control means causes the high voltage to be applied to the main electrodes when the sitting detection means detects the sitting state of the subject, it is possible to ensure safety without insulating the subject when the potential treatment device is seated.

According to the invention of claim 3, since the sitting detection means outputs the output-off necessity determination means to determine that the output of the high voltage is to be turned off and the output-off control means turns off the output of the high voltage when the sitting detection means detects that the subject is not sitting in the state where the high voltage is applied to the main electrode, it is possible to ensure safety without putting the subject in an insulated state when the subject stands off from the electric potential treatment apparatus. In addition, when the sitting state of the person to be treated is detected, a high voltage is applied to the main electrode, so that an insulating base which has been used conventionally is not required, and the structure can be simplified.

According to the invention of claim 4, when the first low voltage and the second low voltage, which are low voltages, are applied to the first main electrode and the second main electrode, respectively, the phases of the first low voltage and the second low voltage are controlled to be in the same phase, and therefore even a weak induced current can be easily and reliably detected by the seating detection unit. Therefore, the accuracy of detecting the sitting position of the person to be treated can be improved.

According to the invention of claim 5, when the first high voltage and the second high voltage, which are high voltages, are applied to the first main electrode and the second main electrode, respectively, the phases of the first high voltage and the second high voltage are controlled to be reversed, and therefore, a sufficient potential difference for treatment can be secured.

Drawings

Fig. 1 is a perspective view showing a configuration of an electric potential treatment apparatus according to embodiment 1 of the present invention.

Fig. 2 is a diagram showing the configuration of the electric potential treatment apparatus, and is a perspective view of a state in which a person to be treated sits on a chair.

Fig. 3 is a circuit diagram for explaining the configuration of the electric potential treatment apparatus.

Fig. 4 is a processing sequence diagram for explaining the operation of the electric potential treatment apparatus.

Fig. 5 is a perspective view showing the configuration of an electric potential treatment apparatus according to embodiment 2 of the present invention.

Fig. 6 is an explanatory diagram for explaining the structure and function of the electric potential treatment apparatus.

Fig. 7 is an explanatory diagram for explaining the structure and function of the electric potential treatment apparatus.

Fig. 8 is a circuit diagram for explaining the configuration of the high voltage generating device of the electric potential treatment device.

Fig. 9 is a processing sequence diagram for explaining the operation of the electric potential treatment apparatus.

Fig. 10 is a circuit diagram for explaining the prior art.

Detailed Description

Next, embodiments of the present invention will be described in detail with reference to the drawings.

(embodiment mode 1)

Fig. 1 is a perspective view showing a configuration of an electric potential treatment apparatus according to embodiment 1 of the present invention, fig. 2 is a view showing the configuration of the electric potential treatment apparatus, and is a perspective view showing a state in which a person to be treated sits on a chair, fig. 3 is a circuit diagram for explaining the configuration of the electric potential treatment apparatus, and fig. 4 is a process sequence diagram for explaining an operation of the electric potential treatment apparatus.

As shown in fig. 1 to 3, the electric potential treatment device 1 of embodiment 1 includes an electric potential treatment device 2 and a high voltage generation device 3. The potential treatment device 2 includes a chair 4 on which a person to be treated a sits and a power-on table 5 on which the feet of the person to be treated a are placed. The chair 4 is covered with an insulator, and a seat electrode 7 is embedded in a seat portion 6 of the chair, and the seat electrode 7 detects a current induced from the person a to be treated in a state where the person a to be treated sits on the chair. The power transmission stage 5 is covered with an insulator, and a lower electrode 8 is embedded therein.

Further, an operation portion 9 including a start switch 9a is disposed on an upper portion of a side wall covering a side portion of the lower body of the person a to be treated. The socket electrode 7 is connected to the detection terminal 16d of the high voltage generator 3, the lower electrode 8 is connected to the voltage output terminal 16c, and the start switch 9a is connected to the connection terminals 16e and 16 f. In fig. 3, the operation unit 9 is shown separately from the chair 4 for convenience of explanation.

As shown in fig. 3, the high voltage generation device 3 includes: a controller 11 which controls each part of the structure and also serves as a safety device; a step-up transformer 12 for stepping up the voltage of the utility power supply Sa; a switching unit 13 for switching a tap (tap) on the primary side of the step-up transformer 12; a safety resistor 14 for increasing an output impedance to prevent an electric shock caused by the lower electrode 8; an input terminal 16 a; 16b connected to a public power supply Sa; a voltage output terminal 16c to which the lower electrode 8 is connected; a detection terminal 16d to which the socket electrode 7 is connected; and connection terminals 16e and 16f to which a start switch 9a is connected.

The controller 11 has: a main control unit including a CPU, and a current measuring unit for measuring an induced current in the socket electrode 7. The main control unit executes an induced current detection process, a high voltage application possibility determination process, and an output interruption necessity determination process. The main control unit detects an induced current in the socket electrode 7 based on a signal from the current measuring unit, and performs an induced current detection process.

When the detected induced current is set to the pilot potential, the main control unit determines that the current Ip flowing from the state where the subject a stands on the power supply table 5 and is not sitting on the chair 4 changes to the current Iq flowing from the state where the subject a is sitting on the chair 4 (Ip < Iq), determines that the high voltage can be applied, and performs the high voltage application possibility determination process (in addition, a weak induced current actually flows in the seat electrode 7 in the state where the subject C is not sitting). When the induced current I exceeds a predetermined current value Ia (for example, Ia ═ Ip) (I > Ia), the main control unit determines that the high voltage can be applied. Thereby, the main control unit controls the switching unit 13 to switch from the first conductive potential contact 13b to the treatment high potential contact 13 c.

When the therapeutic high potential Is set based on the detected induced current, the main control unit determines that the current Ir (Iq < Ir) flowing from the state where the subject a sits on the chair 4 Is changed to the current Is (Is < Ir) flowing from the state where the subject a stands on the energizing station 5 while leaving the chair 4, determines that the output needs to be turned off, and performs the output turning-off necessity determination process. That is, the main controller determines that the output is to be turned off when the induced current I becomes smaller than a predetermined current value Ib (for example, Ib is Ir) (I < Ib). Thereby, the main control unit controls the switching unit 13 to switch from the high potential contact for treatment 13c to the OFF contact 13 a.

The switching unit 13 includes: an open contact 13a provided on the primary side of the step-up transformer 12 for cutting off the input; a pilot potential contact 13b for generating a low voltage without a risk of electric shock on the secondary side; and a high potential contact 13c for treatment for generating a high voltage for treatment (e.g., 7000V to 9000V) on the secondary side.

Next, the operation of the electric potential therapy apparatus 1 according to this embodiment will be described with reference to fig. 4. When the start switch 9a is turned on (step SA11 (fig. 4)), the main control unit of the controller 11 controls the switching unit 13 to switch from the open contact 13a to the pilot potential contact 13 b. Thereby, the pilot potential is applied to the lower electrode 8 (step SA 12). In this state, the person a to be treated stands on the power-on stand 5 and then sits on the chair 4.

Next, the main controller determines whether or not the induced current exceeds Ia in step SA13, and if the induced current exceeds Ia, the process proceeds to step SA14, and if the induced current is equal to or less than Ia, the process returns to step SA 12. That is, in a state where the current is set to the pilot potential based on the detected induced current, the main control unit determines that the slave current Ip has changed to the current Iq (Ip < Iq), and determines that the high voltage can be applied.

In step SA14, the main controller controls the switching unit 13 to switch from the first conductive potential contact 13b to the therapeutic high potential contact 13 c. Thereby, a high therapeutic potential is applied to the lower electrode 8.

Next, the main controller determines whether or not the current value of the induced current is smaller than Ib in step SA 15. This is to determine whether or not the high potential cannot be applied, for example, when the subject C stands up after the high potential for treatment is applied. If the current value of the induced current is smaller than Ib, the process proceeds to step SA16, and if the current value is equal to or greater than Ib, the process proceeds to step SA 14. That Is, in a state where the current Is set to the high potential for treatment based on the detected induced current, the main control unit determines that the current Ir flowing from the state where the person a Is sitting on the chair 4 has changed to the current Is (Is < Ir), and determines that the output needs to be turned off. In step SA16, the main controller controls the switching unit 13 to switch from the high potential therapeutic contact 13c to the open contact 13 a. Thereby, the output of the high voltage potential to the lower electrode 8 is turned off.

According to the configuration of this embodiment, first, a pilot potential that does not pose a risk of electric shock is applied to the lower electrode 8, an induced current in the seat electrode 7 is measured, whether or not a high voltage can be applied is determined based on a change in the current value accompanying the sitting of the person a on the chair 4, and when it is determined that a high voltage can be applied, a high voltage for treatment is applied to the conduction stand 5.

Further, since whether or not to turn off the output is determined based on the change in the current value accompanying the departure of the person a from the chair 4 and the output is turned off when it is determined that the output needs to be turned off, the person a can be safely protected without being insulated when standing away from the electric potential treatment device 2. Therefore, an insulating stand which has been used conventionally is not required, and the structure can be simplified. Further, since the person to be treated A does not need an insulating stand, it is not troublesome to receive the treatment.

Further, since whether or not to turn off the output is determined based on the change in the current value accompanying the departure of the person a from the chair 4, and the high-potential output is turned off when it is determined that the output needs to be turned off, the high-potential output is not applied even if the person C is not under treatment, and therefore, waste of electric power can be prevented, deterioration of the electric potential therapy device 1 can be prevented, and a long life can be achieved.

(embodiment mode 2)

Fig. 5 is a perspective view showing a configuration of a potential treatment device according to embodiment 2 of the present invention, fig. 6 and 7 are explanatory views for explaining the configuration and functions of the potential treatment device, fig. 8 is a circuit diagram for explaining the configuration of a high voltage generating device of the potential treatment device, and fig. 9 is a process sequence diagram for explaining an operation of the potential treatment device.

As shown in fig. 5 to 8, the electric potential treatment device 17 according to embodiment 2 includes an electric potential treatment device 18 and a high voltage generation device 19. The electric potential treatment device 18 includes a chair 20 on which the person B to be treated sits, a power-on stand 21 on which the feet of the person B to be treated are placed, and a head cover 22. The chair 20 is covered with an insulator, and a seat electrode 24 is embedded in a seat portion 23. The radio station 21 and the head cover 22 are covered with an insulator, and a lower electrode 25 and an upper electrode 26 are embedded therein, respectively, so that therapy is performed by a potential difference between the lower electrode 25 and the upper electrode 26.

Further, an operating portion 27 including a start switch is disposed on an upper portion of a side wall that constitutes the chair 20 and covers a side portion of the lower body of the person B to be treated. The socket electrode 24 is connected to a detection terminal 35e of the high voltage generator 19, the lower electrode 25 and the upper electrode 26 are connected to voltage output terminals 35d and 35c, respectively, and the start switch of the operation unit 27 is connected to connection terminals 35f and 35 g.

As shown in fig. 6 to 8, the high voltage generating device 19 includes: a controller 29 which controls each part of the structure and also serves as a safety device; a step-up transformer 31 for stepping up the voltage of the utility power Sb; a switching unit 32 for switching a tap on the primary side of the step-up transformer 31; safety resistors 33b and 33a for increasing output impedance to prevent electric shock caused by the lower electrode 25 and the upper electrode 26, respectively; a connection switching unit 34 for switching connection between both ends of the secondary winding 31b of the step-up transformer 31 and the ground and the safety resistor 33 b; input terminals 35a and 35b connected to a public power supply Sb; a detection terminal 35e to which the socket electrode 24 is connected; a voltage output terminal 35d to which the lower electrode 25 is connected; a voltage output terminal 35c to which the upper electrode 26 is connected; and connection terminals 35f and 35g to which a start switch of the operation unit 27 is connected. In fig. 6 and 7, the region indicated by reference numeral 19 is used to explain "polarity".

The controller 29 has; a main control unit including a CPU, and a current measuring unit 28 for measuring an induced current in the socket electrode 24. The main control unit executes an induced current detection process, a high voltage application availability determination process, a polarity switching control process, and an output disconnection necessity determination process. The main control unit detects the induced current in the socket electrode 24 based on the signal from the current measuring unit, and performs induced current detection processing.

When the detected induced current is set as the pilot potential, the main control unit determines that the current Ip flowing from the state where the subject B stands on the power distribution table 21 and is not seated on the chair 20 has changed to the current Iq flowing from the state where the subject B is seated on the chair 20 (Ip < Iq), determines that the voltage can be applied, and performs the high-voltage application possibility determination process. When the induced current I exceeds a predetermined current value Ia (for example, Ia ═ Ip) (I > Ia), the main control unit determines that the high voltage can be applied. Thereby, the main control unit controls the switching unit 32 to switch from the first conductive potential contact 32b to the treatment high potential contact 32 c.

In the polarity switching control process, when it is determined that the high voltage cannot be applied in the high voltage application possibility determination process, that is, when the pilot potential is applied to the lower electrode 25 and the upper electrode 26, the main control unit controls the connection switching unit 34 so that the voltage phases of the lower electrode 25 and the upper electrode 26 are in the same phase as shown in fig. 6. In addition, when it is determined that the high voltage can be applied in the high voltage application possibility determination process, that is, when the high therapeutic potential is applied to the lower electrode 25 and the upper electrode 26, the main control unit controls the connection switching unit 34 so that the voltage phases of the lower electrode 25 and the upper electrode 26 are reversed, as shown in fig. 7.

When the detected induced current Is set to a high potential for treatment, the main control unit determines that the current Ir (Iq < Ir) flowing from the state where the subject B sits on the chair 20 has changed to the current Is (Is < Ir) flowing from the state where the subject B leaves the chair 20 and stands on the energizing station 21, determines that the output needs to be turned off, and performs an output turning-off necessity determination process. That is, the main controller determines that the output needs to be turned off when the induced current I becomes smaller than a predetermined current value Ib (I < Ib, for example). Thereby, the main control unit controls the switching unit 32 to switch from the high potential contact for treatment 32c to the open contact 32 a.

The switching unit 32 includes: an open contact 32a provided on the primary side of the step-up transformer 31 for cutting off the input; a pilot potential contact 32b for generating a low voltage on the secondary side without any risk of electric shock; and a high potential contact 32c for treatment for generating a high voltage for treatment (e.g., 7000V to 9000V) on the secondary side. Further, the secondary winding 31a of the step-up transformer 31 has one end connected to the safety resistor 33a and the other end connected to the ground. Further, one end of the secondary winding 31b is connected to the safety resistor 33b or the ground via the connection switching portion 34, and the other end is connected to the ground or the safety resistor 33b via the connection switching portion 34.

Next, the operation of the electric potential therapy apparatus 17 according to this embodiment will be described with reference to fig. 9. When the start switch is turned on (step SB11 (fig. 9)), the main control unit of the controller 29 controls the connection switching unit 34 so that the voltage phases of the lower electrode 25 and the upper electrode 26 are in the same phase (step SB12) and controls the switching unit 32 so as to switch from the open contact 32a to the pilot potential contact 32b, as shown in fig. 6. Thereby, a pilot potential is applied to the lower electrode 25 and the upper electrode 26 (step SB 13).

In this state, the person B stands on the power transmission station 21 and then sits on the chair 20. In this state, as shown in fig. 6, the lower electrode 25 and the upper electrode 26 have the same polarity, so that the current Ic flowing along the path including the secondary winding 31a, the upper electrode 26, the subject B, the bed electrode 24, and the current measurement unit 28 and the current Id flowing along the path including the secondary winding 31B, the lower electrode 25, the subject B, the bed electrode 24, and the current measurement unit 28 flow into the current measurement unit 28 in the same direction. At this time, the current I flowing into the current measurement unit 28 becomes (| I | ═ Ic + Id | + | Ic | + |). Accordingly, the current I flowing into the current measuring unit 28 is cancelled out and the signal becomes weak when the lower electrode 25 and the upper electrode 26 have opposite polarities (| I | ═ Ic + Id | | | | Ic | - | | | | | | | |), and even a weak induced current can be easily detected by the current measuring unit 28.

Next, the main controller determines whether or not the induced current exceeds Ia in step SB14, and proceeds to step SB15 when the induced current exceeds Ia, and returns to step SB13 when the induced current is equal to or less than Ia. That is, when the main control unit determines that the slave current Ip has changed to the current Iq (Ip < Iq) in a state where the pilot potential is set based on the detected induced current, it determines that the high voltage can be applied.

At step SB15, the main controller controls the connection switching unit 34 so that the voltage phases of the lower electrode 25 and the upper electrode 26 are reversed, and at step SB16, controls the switching unit 32 so that the first conductive potential contact 32b is switched to the high therapeutic potential contact 32 c. Thereby, a high therapeutic potential is applied to the lower electrode 25 and the upper electrode 26.

In this state, as shown in fig. 7, the lower electrode 25 and the upper electrode 26 have opposite polarities, so that the current Ic flowing along the path including the secondary winding 31a, the upper electrode 26, the subject B, the bed electrode 24, and the current measuring unit 28 and the current Id flowing along the path including the secondary winding 31B, the lower electrode 25, the subject B, the bed electrode 24, and the current measuring unit 28 flow into the current measuring unit 28 in opposite directions.

Next, the main controller determines whether or not the current value is smaller than Ib at step SB17, and if the current value is smaller than Ib, the process proceeds to step SA18, and if the current value is equal to or larger than Ib, the process returns to step SB 16. That Is, when the treatment high potential Is set based on the detected induced current, the main control unit determines that the current Ir flowing from the state where the person B Is sitting on the chair 20 has changed to Is (Is < Ir), and determines that the output needs to be turned off.

The main controller controls the switching unit 32 to switch from the high potential therapeutic contact 32c to the open contact 32a at step SB 18. Thereby, the output is turned off.

According to the configuration of embodiment 2, first, a pilot potential without a risk of electric shock is applied to the conduction station 21, the induced current in the seat electrode 24 is measured, whether or not a high voltage can be applied is determined based on a change in the current value accompanying the sitting of the person B on the chair 20, and when it is determined that a high voltage can be applied, a high voltage for treatment is applied to the conduction station 21, so that when the person B is seated on the electric potential treatment device 18, the person B is not required to be in an insulated state, and safety can be ensured.

Further, since it is determined whether or not the output needs to be turned off based on the change in the current value accompanying the departure of the person to be treated B from the chair 20, and the output is turned off when it is determined that the output needs to be turned off, it is possible to ensure safety without putting the person to be treated B in an insulated state when standing away from the potential treatment device 18. Therefore, an insulating stand which has been used conventionally is not required, and the structure can be simplified.

Further, whether or not to turn off the output is determined based on a change in the current value accompanying the departure of the person B from the chair 20, and if it is determined that the output needs to be turned off, the output is turned off, so that the high voltage is not applied even during the treatment, and therefore, the deterioration of the potential treatment device 17 can be prevented, and the life can be prolonged.

Further, when the pilot potential is applied to the lower electrode 25 and the upper electrode 26, the connection switching unit 34 is controlled so that the voltage phases of the lower electrode 25 and the upper electrode 26 are in the same phase, and when the high therapeutic potential is applied to the lower electrode 25 and the upper electrode 26, the connection switching unit 34 is controlled so that the voltage phases of the lower electrode 25 and the upper electrode 26 are in opposite phases, so that when the pilot potential is applied, the current Ic flowing along the path including the secondary winding 31a, the upper electrode 26, the patient B, the bed electrode 24, and the current measuring unit 28 and the current Id flowing along the path including the secondary winding 31B, the lower electrode 25, the patient B, the bed electrode 24, and the current measuring unit 28 flow into the current measuring unit 28 in the same direction.

Therefore, the current I flowing into the current measurement unit 28 becomes (| I | ═ Ic + Id | ═ Ic | + | Id |), and can be easily and reliably detected by the current measurement unit 28 even with a weak induced current. Therefore, the accuracy of detecting the sitting position of the person to be treated B can be improved.

In addition, when a high therapeutic potential is applied to the lower electrode 25 and the upper electrode 26, the connection switching unit 34 is controlled so that the voltage phases of the lower electrode 25 and the upper electrode 26 are reversed, and therefore a sufficient potential difference for therapy can be secured.

Although the embodiments of the present invention have been described above with reference to the drawings, the specific configurations are not limited to these embodiments, and design changes made without departing from the spirit of the present invention are also included in the present invention. For example, although the case where the lower electrode is disposed as the main electrode has been described in embodiment 1 above, an upper electrode facing the head of the subject may be embedded in the head cover in addition to the lower electrode. Further, the main electrodes may be arranged in 3 or more or 3 groups. In embodiment 2, a main electrode may be disposed in addition to the lower electrode and the upper electrode, and for example, a pair of the lower electrode and the upper electrode may be disposed.

Industrial applicability

The present invention can be applied not only to chairs but also to a case of being integrated with a bed or the like.

Description of the reference numerals

1 electric potential therapeutic device

2 electric potential therapeutic equipment

3 high voltage generating device

4 chair

5 electrifying table

6 seat part

7 electrode (electrode for detection)

8 lower electrode (main electrode)

9 operating part

9a Start switch

Controller 11 (seating detection means, high voltage application possibility determination means, high voltage application control means, output disconnection necessity determination means, output disconnection control means)

12 step-up transformer

13 switching part

13a disconnection contact

13b Pilot potential contact

13c high potential contact for therapy

14 safety impedance

16a, 16b input terminal

16c voltage output terminal

16d detection terminal

16e, 16f connection terminal

17 electric potential therapeutic device

18 electric potential therapeutic apparatus

19 high voltage generating device

20 chair

21 electrifying table

22 head cover

23 seat part

24-seat electrode (electrode for detection)

25 lower electrode (main electrode, second main electrode)

26 Upper electrode (Main electrode, first main electrode)

27 operating part

28 current measuring part

29 controller (seating detection means, high voltage application possibility determination means, high voltage application control means, output disconnection necessity determination means, output disconnection control means, polarity control means)

31 step-up transformer

32 switching part

32a open contact

32b pilot potential contact

32c high potential contact for therapy

33a, 33b safe impedance

34 switching connection

35a, 35b input terminals

35c, 35d voltage output terminal

35e detection terminal

35f, 35g connecting terminal

101 electric potential therapeutic device

102 electric potential therapeutic apparatus

103 high voltage generating device

104 chair

105 electrifying table

106 insulating table

107 lower electrode

108 controller

109 step-up transformer

111 turn-off switch

112 safety impedance

A. B, C the person to be treated

Ia. Ib current

Sa, Sb, Sd public power supply

Claims (5)

1. An electric potential treatment device for treating a subject by setting the subject at a high electric potential, comprising:

a main electrode embedded in a power-on table on which the foot of the subject is placed, the main electrode being applied with a high voltage for treatment;

high voltage generating means for applying a high voltage to the main electrode; and

a detection electrode embedded in a seat of a chair on which the subject sits, for detecting the sitting of the subject on the chair;

the high voltage generating device applies a low voltage lower than the high voltage to the main electrode before applying the high voltage for treatment to the main electrode, and the high voltage generating device includes a seating detection means for detecting an induced current induced from the person to be treated and flowing through the detection electrode by seating of the person to be treated on the chair in a state where the low voltage is applied to the main electrode, thereby detecting the seating state of the person to be treated.

2. The electric potential treatment apparatus according to claim 1, comprising:

a high voltage application possibility determination unit that determines that the therapeutic high voltage can be applied to the main electrode when the sitting position detection unit detects a sitting position state of the subject; and

and a high voltage application control unit configured to apply the high voltage to the main electrode when it is determined that the high voltage can be applied.

3. Electric potential treatment apparatus according to claim 1 or 2,

the sitting detection means detects a current smaller than a predetermined value due to no sitting of the subject in a state where the high voltage is applied to the main electrodes, and detects a no-sitting state of the subject;

the electric potential therapy device is provided with:

an output disconnection necessity determination unit that determines that it is necessary to disconnect the output of the high voltage when the sitting detection unit detects an unseated state of the subject; and

and an output disconnection control unit configured to disconnect the output of the high voltage when it is determined that the output of the high voltage needs to be disconnected.

4. Electric potential treatment apparatus according to claim 1 or 2,

the potential treatment device includes a first main electrode and a second main electrode as the main electrodes, and a polarity control unit that controls phases of the first low voltage and the second low voltage to be in phase when a first low voltage and a second low voltage as the low voltages are applied to the first main electrode and the second main electrode, respectively.

5. Electric potential treatment apparatus according to claim 4,

the polarity control unit controls the first and second main electrodes to have the phases of the first and second high voltages inverted when the first and second high voltages are applied as the high voltages to the first and second main electrodes, respectively.