GB2164563A - An electric field therapy apparatus - Google Patents
An electric field therapy apparatus Download PDFInfo
- Publication number
- GB2164563A GB2164563A GB08423988A GB8423988A GB2164563A GB 2164563 A GB2164563 A GB 2164563A GB 08423988 A GB08423988 A GB 08423988A GB 8423988 A GB8423988 A GB 8423988A GB 2164563 A GB2164563 A GB 2164563A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- electric field
- earth
- therapy apparatus
- field therapy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005684 electric field Effects 0.000 title claims description 20
- 238000002560 therapeutic procedure Methods 0.000 title claims description 19
- 238000004804 winding Methods 0.000 claims description 28
- 238000010586 diagram Methods 0.000 description 6
- 239000003990 capacitor Substances 0.000 description 5
- 230000001225 therapeutic effect Effects 0.000 description 5
- 238000002665 ion therapy Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 238000000554 physical therapy Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/40—Applying electric fields by inductive or capacitive coupling ; Applying radio-frequency signals
Landscapes
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Electrotherapy Devices (AREA)
Abstract
Electrodes are connected to a pair of output terminals such that an appropriate intermediate point between the output terminals is connected, as a voltage point, to the earth, whereby each of the electrodes is constructed so as to make withstand voltage to ground small, and that electric potential difference between the electrodes can be made large. <IMAGE>
Description
SPECIFICATION
Electric field therapy apparatus
Background of the Invention
The electric field therapy apparatus which serves to treat the human body in electric field and which is called electric potential, electrostatic, or ion therapy apparatus has been widely used as one means to attain physio-therapy and excellent therapeutical effects have been demonstrated. The feature of this electric field therapy apparatus exists in that therapeutical treatment can be easily effected all over the human body without current being applied directly to the human body.
Fig. 1 is a circuit diagram showing an example of the conventional electric field therapy apparatus. In
Fig. 1, numeral 1 represents a boosting transformer, which is provided with a primary winding 2 and a secondary winding 3 which generates boosted voltage. Numerals 4, 4 denote power source terminals of a commercial power source E, 5, 6 connecting points of the secondary winding 3,7,8 high impedance elements connected to the connecting points 5 and 6, respectively, and comprising resistors or capacitors, 9, 10 connecting points, and 11, 12 therapeutical electrodes, one 12 of which is connected to the earth 13 through the high impedance elements 8.
14 denotes an earth connected to one line of the commercial power source E. V1 represents a voltage applied between the. power source terminals 4 and 4 of the primary winding 2, and V2 a voltage output between the connecting points 9 and 10.
In the case of the conventional electric field therapy apparatus arranged as described above, the side of the connecting point 6 of the secondary winding 3 is earthed, thereby enabling the electrode 12 to be of low withstand voltage to ground (dielectric strength against the voltage to ground, hereinafter referred to as "withstand voltage to ground") structure, but the side of the connecting point 5 of the secondary winding 3 is by about the voltage V2 higher than the side of the connecting point 6 and this voltage V2 is usually high, amounting to several kilo-volts, thereby causing the electrode 11 to be of high withstand voltage to ground structure.
When safety is considered, only the high impedance element 7 is sufficient, and the conventional apparatus is usually provided with only this high impedance element 7. When therapeutical effects attained by the electric field therapy apparatus are considered, the high impedance elements 7 and 8 are not necesarily needed.
Summary of the Invention
The present invention relates to an improvement of the electric field therapy apparatus which uses high voltage to treat the human body and which is also called electric potential, electrostatic or ion therapy apparatus.
According to the present invention, the electric field therapy apparatus in which electrodes are connected to a pair of output terminals,
respectively, is characterized in that an appropriate intermediate point between the output terminals is connected, as a voltage point, to the earth, that each
of the electrodes is constructed so as to make withstand voltage to ground small, and that electric
potential difference between the electrodes can be
made large.
A first object of the present invention is to construct each of the electrodes so as to make withstand voltage to ground small.
A second object of the present invention is to
make electric potential difference between the
electrodes large.
A third object of the present invention is to simplify the construction of each of the electrodes to
make the whole of the apparatus small-sized.
These and other objects of the present invention can be achieved by an electric field therapy apparatus which is arranged according to the present invention, and some more concrete examples of this electric field therapy apparatus will be described in more detail with refeence to the accompanying drawings. It should be understood that various changes and modifications of these examples are included within the scope of appended claims.
Brief Description of the Drawings
Fig. 1 is a circuit diagram showing an example of the conventional electric field therapy apparatus.
Figs. 2a-2d are circuit diagrams showing an embodiment of the present invention.
Fig. 3 is a view showing a case where the circuit shown in Fig. 2a is used.
Figs. 4a-4e are circuit diagrams showing other embodiments of the present invention.
Detailed Description of the Preferred Embodiment
The present invention relates to an electric field therapy apparatus wherein an appropriate intermediate voltage point of terminal voltage on the secondary winding side of a boosting transformer is connected to the earth to make withstand voltage to ground of each of electrodes small and electric potential difference between the electrodes large.
Fig. 2a is a circuit diagram showing an embodiment of the present invention, in which same parts as those in Fig. 1 will be denoted by same reference numerals. Numeral 15 represents an intermediate tap positioned at a predetermined point of the secondary winding 3. This intermediate tap 15 is connected to the earth 13'.
The position of the intermediate tap 15 may not necessarily be the center of the secondary winding 3. Since the high impedance elements 7 and 8 are not necessarily needed from the viewpoint of therapeutical effects attained, they will be incorporated into the circuit, when needed.
Fig. 2b shows an example wherein the intermediate tap 15 is connected to the primary winding 2 instead of its being directly earthed as shown in Fig. 2a, and wherein the intermediate tap 15 is earthed by connecting one line I of the commercial power source E to the earth 14.
Fig. 2c shows another example wherein a safety resistor 16 is connected to the circuit shown in Fig.
2b.
In Fig. 2d, two boosting transformers 1 and 1' are used and primary windings 2 and 2' are connected with each other in parallel while secondary windings 3 and 3' are connected with each other in series. The intermediate point between the secondary windings 3 and 3' connected is connected to the earth 13".
Fig. 3 is a view showing a case where the circuit shown in Fig. 2a is used and M denotes a human body. The human body M to be treated is positioned between the electrodes 11 and 12. As apparent from the above, the electric field therapy apparatus of the present invention enables the withstand voltage to ground to be made small when voltage used is same as in the conventional case and the electric potential difference between the electrodes 11 and 12 to be made large when the withstand voltage to ground of the electrodes is same as in the conventional case.
Figs. 4a-4e are circuit diagrams showing other embodiments of AC/DC superposed type according to the present invention where a part of the secondary winding side is shown, respectively.
Same parts as those in Fig. 2a will be represented by same reference numerals.
In Fig. 4a, the intermediate tap 15 is connected to a connecting point 6' through a capacitor 19a and a diode 18a is interposed between the connecting point 6' and the connecting point 6 of the secondary winding 3. The example shown in Fig. 4a is same as that in Fig. 2a except the above. In this case, alternating current is applied between the earth and the electrode 11, while direct current between the earth and the electrode 12.
In Fig. 4b, the connected point 5 of secondary winding 3 is connected to the high impedance element 7 through a diode 1 8B, and the intermediate tapiS is connected to a connecting point 5' between the output side of the diode 18B and the high impedance element 7 through a capacitor 19B. The example in Fig. 4b is same as the one shown in Fig. 2a except the above. In this case, direct current is applied between the earth and the electrode 11, while alternating current between the earth and the electrode.
In Fig. 4c, two intermediate taps are arranged at the secondary winding 3 and represented by numerals 20 and 21 as first and second intermediate taps. The first intermediate tap 20 is connected to the connecting point 6' through the capacitor 19A, similarly to the case shown in Fig. 4a, and the diode 1 8A is interposed between the connecting point 6' and the connecting point 6 of the secondary winding 3. The second intermediate tap 21 is connected to the earth 13'. In this case, alternating and direct current is applied between the earth and the electrode 12, while alternating current between the earth and the electrode 11.
In Fig. 4d, the second intermediate tap 21 is connected to a connecting point 5' through a capacitor 19C and a diode 18C is interposed between the connecting point 5' and the connecting point 5 of the secondary winding 3. The first intermediate tap 20 is connected to the earth 13', similarly to the case shown in Fig. 2a. Alternating and direct current is applied between the earth and the electrode 11, while alternating current between the earth and the electrode 12.
Fig. 4e shows a case where a third intermediate tap 22 is arranged at the secondary winding in addition to the first and second intermediate taps 20 and 21. The third intermediate tap 22 is connected to the earth 13'. This example in Fig. 4e corresponds to the combination of those shown in Figs. 4c and 4d.
Alternating and direct current is applied to the electrodes 11 and 12.
Even in the cases of these embodiments shown in
Figs. 4a-4e, the high impedance elements 7 and 8 are not necessarily needed, as described above.
In the cases of these embodiments shown in Figs.
4a-4e, each of the intermediate taps 15, 20, 21 and 22 may be connected to the side of the primary winding 2, as shown in Fig. 2b, or a safety resistor may be interposed between each of the intermediate taps and the primary winding 2, as shown in Fig. 2c. The circuit shownin Fig. 2d may be employed.
As described above in detail, the intermediate tap is positioned at a certain point on the secondary winding of the boosting transformer in the case of the electric field therapy apparatus.
Therefore, the withstand voltage to ground of each of the electrodes may be adapted to be higher than voltage on the basis of the intermediate tap, thereby enabling the whole of the apparatus to be small-sized. Further, not earth electric potential (which is same in electric potential as the earth) but voltage corresponding to that at the intermediate tap is applied to the two electrodes, respectively.
When a detector such as the neon tube is brought near one of the electrodes, therefore, it is turned on, thereby making it visible to the user that electric field is formed, so that relief and reliability can be guaranteed to the user, which is an extremely practical effect attained by the therapy apparatus.
Claims (5)
1. An electric field therapy apparatus having electrodes connected to a pair of output terminals characterized in that an appropriate intermediate point between the output terminals is connected, as a voltage point, to the earth.
2. An electric field therapy apparatus having electrodes connected to a pair of output terminals and according to claim 1 characterized in that electrodes are connected to both ends of a secondary winding of a boosting transformer and that an intermediate tap is positioned at a predetermined point on the secondary winding and connected to the earth.
3. An electric field therapy apparatus having electrodes connected to a pair of output teminals and according to claim 1 characterized in that two boosting transformers are used and-that their primary windings are connected with each other in parallel while their secondary windings are connected with each other in series and the connecting point between these secondary windings is connected to the earth.
4. Apparatus as claimed in claim 1 and substantially as herein described with reference to the accompanying drawings.
5. Each and every novel embodiment herein set forth either separately or in combination.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08423988A GB2164563B (en) | 1984-09-21 | 1984-09-21 | Electrostatic therapy apparatus |
AU33448/84A AU574718B2 (en) | 1984-09-21 | 1984-09-24 | Electric field therapy |
HK13391A HK13391A (en) | 1984-09-21 | 1991-02-28 | Electrostatic therapy apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08423988A GB2164563B (en) | 1984-09-21 | 1984-09-21 | Electrostatic therapy apparatus |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8423988D0 GB8423988D0 (en) | 1984-10-31 |
GB2164563A true GB2164563A (en) | 1986-03-26 |
GB2164563B GB2164563B (en) | 1988-08-03 |
Family
ID=10567109
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08423988A Expired GB2164563B (en) | 1984-09-21 | 1984-09-21 | Electrostatic therapy apparatus |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU574718B2 (en) |
GB (1) | GB2164563B (en) |
HK (1) | HK13391A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU574718B2 (en) * | 1984-09-21 | 1988-07-14 | Hakuju Institute For Health Science Co. Ltd. | Electric field therapy |
GB2274593A (en) * | 1993-01-28 | 1994-08-03 | Hakuju Inst For Health Science | Electric field therapy apparatus |
US5836997A (en) * | 1996-04-03 | 1998-11-17 | Kohgen Kizai Kabushiki Kaisha | System for preventing and curing osteoporosis and obesity |
US5899922A (en) * | 1993-05-28 | 1999-05-04 | Loos; Hendricus G. | Manipulation of nervous systems by electric fields |
US6081744A (en) * | 1993-05-28 | 2000-06-27 | Loos; Hendricus G. | Electric fringe field generator for manipulating nervous systems |
US6167304A (en) * | 1993-05-28 | 2000-12-26 | Loos; Hendricus G. | Pulse variability in electric field manipulation of nervous systems |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB467502A (en) * | 1935-12-13 | 1937-06-14 | Standard Telephones Cables Ltd | Improvements in or relating to apparatus for treatment by means of high frequency electromagnetic waves |
GB1550245A (en) * | 1975-08-04 | 1979-08-08 | Critical Systems | Apparatus for treating tumours |
WO1979000836A1 (en) * | 1978-03-27 | 1979-10-18 | Critical Systems | Method and apparatus for heating tissue |
GB1556416A (en) * | 1975-07-11 | 1979-11-21 | Leveen H | Apparatus for applying radio frequency electrical power to a load |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1485849A (en) * | 1974-11-25 | 1977-09-14 | Hakuju Inst For Health Science | Therapeutical apparatus applying superposed output of dc |
US4032860A (en) * | 1975-07-11 | 1977-06-28 | Leveen Harry H | Radio frequency power generator having adjustable stabilized output level and fail-safe control circuits |
GB2164563B (en) * | 1984-09-21 | 1988-08-03 | Hakuju Inst For Health Science | Electrostatic therapy apparatus |
-
1984
- 1984-09-21 GB GB08423988A patent/GB2164563B/en not_active Expired
- 1984-09-24 AU AU33448/84A patent/AU574718B2/en not_active Expired
-
1991
- 1991-02-28 HK HK13391A patent/HK13391A/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB467502A (en) * | 1935-12-13 | 1937-06-14 | Standard Telephones Cables Ltd | Improvements in or relating to apparatus for treatment by means of high frequency electromagnetic waves |
GB1556416A (en) * | 1975-07-11 | 1979-11-21 | Leveen H | Apparatus for applying radio frequency electrical power to a load |
GB1550245A (en) * | 1975-08-04 | 1979-08-08 | Critical Systems | Apparatus for treating tumours |
WO1979000836A1 (en) * | 1978-03-27 | 1979-10-18 | Critical Systems | Method and apparatus for heating tissue |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU574718B2 (en) * | 1984-09-21 | 1988-07-14 | Hakuju Institute For Health Science Co. Ltd. | Electric field therapy |
GB2274593A (en) * | 1993-01-28 | 1994-08-03 | Hakuju Inst For Health Science | Electric field therapy apparatus |
GB2274593B (en) * | 1993-01-28 | 1996-08-21 | Hakuju Inst For Health Science | Electric field therapy apparatus |
US5899922A (en) * | 1993-05-28 | 1999-05-04 | Loos; Hendricus G. | Manipulation of nervous systems by electric fields |
US6081744A (en) * | 1993-05-28 | 2000-06-27 | Loos; Hendricus G. | Electric fringe field generator for manipulating nervous systems |
US6167304A (en) * | 1993-05-28 | 2000-12-26 | Loos; Hendricus G. | Pulse variability in electric field manipulation of nervous systems |
US5836997A (en) * | 1996-04-03 | 1998-11-17 | Kohgen Kizai Kabushiki Kaisha | System for preventing and curing osteoporosis and obesity |
Also Published As
Publication number | Publication date |
---|---|
GB8423988D0 (en) | 1984-10-31 |
AU574718B2 (en) | 1988-07-14 |
HK13391A (en) | 1991-03-08 |
GB2164563B (en) | 1988-08-03 |
AU3344884A (en) | 1986-04-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Effective date: 20040920 |