GB2188238A - Apparatus for magnetic therapy - Google Patents
Apparatus for magnetic therapy Download PDFInfo
- Publication number
- GB2188238A GB2188238A GB08607761A GB8607761A GB2188238A GB 2188238 A GB2188238 A GB 2188238A GB 08607761 A GB08607761 A GB 08607761A GB 8607761 A GB8607761 A GB 8607761A GB 2188238 A GB2188238 A GB 2188238A
- Authority
- GB
- United Kingdom
- Prior art keywords
- output
- input
- voltage
- generator
- multiplexer
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N2/00—Magnetotherapy
- A61N2/02—Magnetotherapy using magnetic fields produced by coils, including single turn loops or electromagnets
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N2/00—Magnetotherapy
- A61N2/004—Magnetotherapy specially adapted for a specific therapy
- A61N2/008—Magnetotherapy specially adapted for a specific therapy for pain treatment or analgesia
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Chemical & Material Sciences (AREA)
- Hospice & Palliative Care (AREA)
- Pain & Pain Management (AREA)
- Medicinal Chemistry (AREA)
- Magnetic Treatment Devices (AREA)
Abstract
An apparatus for magnetic therapy having a pronounced analgesic, trophic and antiinflammatory effect, comprises a coil 7 fed by a modulator 3 receiving the output of a carrier wave generator 2 and a modulating generator 4. Each generator 2, 4 can produce a variety of wave shapes (sine, square, triangle) and a variable frequency under the control of a programming block 1 and timer 9. Each generator comprises a linear voltage generator 2.1; a frequency indicator 2.2; a voltage to frequency converter 2.3; a sinusoidal voltage generator 2.4 and a multiplexer 2.5. <IMAGE>
Description
SPECIFICATION
Apparatus for Magnetic Therapy
This invention relates to an apparatus for magnetic therapy having an analgesic, trophic and antiinflammatory effect which may be used in medicine.
An apparatus for magnetic therapy has been proposed which comprises a control block, a first output of which is connected, through a generator of linearly varying voltage, a voltage-frequency converter and a former (forming means) of modulating sinusoidal voltage, to a first input of a modulator. A second output of the control block is connected to the first input of a buffer amplifier. The output of the modulator, through the second input of the buffer amplifier and through an inductor, is connected with a measuring device of the magnetic field. A third output of the control block is connected with a former of carrying sinusoidal voltage through a generator of carrying linearly varying voltage. The output of the former of carrying sinusoidal voltage is connected with the second input of the modulator.The output of the generator of linearly varying voltage is connected with a frequency meter.
A disadvantage of this apparatus for magnetic therapy is its low therapeutic effect due to its limited possibilities with respect to the form of the magnetic field and the operation with a determined type of inductors.
According to the present invention, there is provided apparatus for magnetic therapy, comprising:
a control block;
a generator for carrier signals;
a generator for modulating signals;
a modulator; and
an inductor, wherein, in use, under control of the control block, the generator for carrier signals supplies a carrier signal to the modulator, the generator for modulating signal supplies a modulating signal to the modulator, and the modulator supplies to the inductor a signal for generating a magnetic field.
An embodiment of the invention may provide an apparatus for magnetic therapy with increased therapeutic effect.
An embodiment of the invention may provide an apparatus for magnetic therapy comprising a former (generator) of carrying sinusoidal voltage, a control block, the first output of which is connected, through a generator of linearly varying voltage and a voltage-frequency converter, to a former of modulating sinusoidal voltage. The generator of linearly varying voltage is connected with a frequency meter. The second output of the control block is connected with the first input of a buffer amplifier, the second input of which is connected with the output of a modulator. The third output of the control block is connected with the generator of carrying linearly varying voltage. The output of the inductor is connected with a measuring device for the magnetic field.The former of modulating sinusoidal voltage is connected with the first input
of a multiplexer, whose second output is connected
with the output of the voltage-frequency converter.
The third input of the multiplexer is connected with
the second output of the voltage-frequency
converter while the fourth input of the multiplexer is
connected with the fourth output of the control
block. The output of the multiplexer is connected
with the first input of the modulator. The generator of carrying linearly varying voltage is connected to a
second voltage-frequency converter as well as to a
second frequency meter. The first output of the
second voltage-frequency converter is connected
with the first input of a second multiplexer through
the former of carrying sinusoidal voltage and to a
second input of the second multiplexer-in a direct
manner.The second output of the second voltage
frequency converter is connected with the third
input of the second multiplexer, the fourth input of
which is connected with the fifth output of the
control block. The output of the buffer amplifier is
connected with the input of the inductor through a
coordinating unit, the second input of which is
connected with the sixth output of the control block.
The output of the second multiplexer is connected
with the second input of the modulator. The control
block is connected to a programmable timer.
Although the invention can be put into practice in
a number of ways, reference is now made, by way of
example, to the accompanying Figure which is a
block diagram of an embodiment of the present
invention.
As shown in the Figure, an apparatus for magnetic
therapy embodying the present invention basically
comprises a control block 1, a functional generator 2
for generating carrying (carrier) signals 2, a second
functional generator 4 for generating modulating
signals, a modulator 3, a buffer amplifier 5, a co
ordinating unit 6, an inductor 7, a magnetic field
meter 8, and a programmable timer 9.
According to the Figure, a first output of control
block 1 is connected with the first input of the
functional generator of carrying signals 2 that is
realised as a generator of linearly varying voltage
2.1, the output of which is connected with the input
of frequency meter 2.2 and simultaneously with the
input of voltage-frequency converter 2.3 whose first
output is connected to an input of a former of
sinusoidal voltage 2.4, the output of which is
connected with the first input of multiplexer 2.5. The
second output of voltage-frequency converter 2.3 is
connected also with the second input of multiplexer
2.5. The fourth input of the multiplexer is the second
input of the functional generator of carrying signals
2 and is connected to the second output of control
block 1.The output of multiplexer 2.5 forms the
output of the functional generator of carrying
signals 2 and is connected with the first input of
modulator 3.
The third output of control block 1 is connected
with the first input of the functional generator of
modulating signals 4. The latter is realized as a
generator of carrying linearly varying voltage 4.1,
the output of which is connected with the input of
frequency meter 4.2 and with the input of a second
voltage-frequency converter 4.3 whose first output is connected with the input of the former (generator) of carrying sinusoidal voltage 4.4. The output of the latter is connected with the first input of a second multiplexer 4.5. The first output of the second voltage-frequency converter is connected with the second input of the second multiplexer 4.5, while the second output of the second voltage-frequency converter is connected with the third input of the second multiplexer 4.5.The latter has a fourth input which constitutes the second input of the functional generator of modulating signals 4 and is connected with the fourth output of control block 1. The output of the second multiplexer 4.5 constitutes the output of the second functional generator of modulating signals 4 and is connected with the second input of modulator 3, the output of which through the second input of buffer amplifier 5, a second input of coordinating unit 6 and inductor 7 is connected with an input of the measuring device of magnetic field 8.
The fifth and sixth outputs of control block 1 are connected with the first input of buffer amplifier 5 and with the first input of coordinating unit 6. The input of control block 1 is connected with the output of programmable timer 9.
The apparatus operates in the following manner.
In control block 1 there is preset a particular operational regime of the apparatus and a
respective duration of the therapy by means of connection of the output of programmable timer 9 with the input of control block 1. By means of the connections of the third and fifth output of control
block 1 respectively with the first and second input of functional generator of carrying signals 2, the frequency and form of the carrying (carrier) oscillations are changed. By means of the connections of first and second output of control block 1 respectively with the first and second input of the second functional generator of modulating signals 4, the frequency and form of the modulating oscillations are modified.In the outputs of both functional generators 2 and 4 the form of oscillations can be trishaped (triangle wave, ramp wave), rectangular or sinusoidal depending on the selected operational conditions in the control block 1.
The frequency operational regimes of the functional generator of modulating oscillation are in the range from 0 to 100 Hz. The frequency can change linearly automatically for a determined period of time "T" from 0 to 100 Hz and reversely, from 0 to a frequency fx and reversely for fx in the range from 0 to 100 Hz and functional frequency in the range from 0 to 100 Hz.
The frequency of the functional generator of carrying signals 2 changes stepwise in the range from 500 Hzto 2000 Hz and in linear manner automatically in the same range. From the output of modulator 3, as a result of the signals transmitted to its inputs there is obtained an amplitude modulated oscillation with frequency modulation of the carrying and modulating oscillation. The depth of the amplitude modulation may be up to 98%. This oscillation is transmitted on its partthrough the buffer amplifier 5, the amplification of which is controlled by the connection of its first input with the fifth output of control block 1 via the coordinating unit 6 to the input of inductor 7, which generates the required magnetic field for therapy purposes.
Through the connection of the first input of coordinating unit 6 with the sixth output of control block 1 there is effected the control of coordinating unit 6 depending on the type of inductors 7 used. By means of the two frequency meters 2.2 and 4.2 the change in the carrying and modulating frequency can be checked. The tension (strength) of the magnetic field can be controlled or monitored by the measuring device of magnetic field 8.
As mentioned above, the apparatus for magnetic therapy comprises a generator of carrier sinusoidal voltage, a control block (1), a voltage-frequency converter (4.3) and a generator of modulating sinusoidal voltage (4.4), the latter being connected with the first input of a multiplexer (4.5), the second input of which is connected with the output of the voltage-frequency converter (4.3) while the fourth input of the multiplexer (4.5) is connected with the fourth output of the control block (1). A generator of linearly changing carrier voltage (2.1) is connected with a second voltage-frequency converter (2.3) and a frequency meter (2.2). The first output of the second voltage-frequency converter (2.3) is connected with a first input of a second multiplexer (2.5) through a generator of carrier sunusoidal voltage (2.4). The second output of the second voltage-frequency converter (2.3) is connected with the third input of the second multiplexer (2.5), whose fourth input is connected to the fifth output of the control block. An input of the control block (1) is connected to a programmable timer.
The apparatus for magnetic therapy may be used in medicine and has a pronounced analgesic, trophic and antiinflammatory effect.
References:
Bulgarian inventor's certificate BG 36 508.
Claims (10)
1. Apparatus for magnetictherapy,comprising: a control block;
a generator for carrier signals;
a generator for modulating signals;
a modulator; and
an inductor, wherein, in use, under control of the control block, the generator for carrier signals supplies a carrier signal to the modulator, the generator for modulating signals supplies a modulating signal to the modulator, and the modulator supplies to the inductor a signal for generating a magnetic field.
2. Apparatus for magnetic therapy as claimed in claim 1, further comprising:
a buffer amplifier, interposed between the modulator and the inductor.
3. Apparatus for magnetic therapy as claimed in claim 1, or 2, further comprising a coordinating unit operable by the control block, interposed between the modulator and the inductor.
4. Apparatus for magnetic therapy as claimed in claim 1, 2 or 3, further comprising a programmable timer for providing a timing signal to the control block.
5. Apparatus for magnetic therapy as claimed in claim 1,2,3, or 4, further comprising a magnetic field meter for monitoring a magnetic field generated by the inductor.
6. Apparatus for magnetic therapy as claimed in any preceding claim, wherein the generator for carrier signals comprises:
means for generating a linearly-changing voltage;
voltage-to-frequency converting means;
frequency measuring means;
means for generating a carrier signal; and
a multiplexer.
7. Apparatus for magnetic therapy as claimed in claim 6, wherein in the generator for carrier signals the means for generating a linearly-changing voltage has an input connected to the control block, and an output connected to the voltage-tofrequency converting means and to the frequency measuring means; wherein the voltage-tofrequency converting means has outputs connected to the means for generating a carrier signal and the multiplexer; and wherein the means for generating a carrier signal has an output connected to the multiplexer, an output of the multiplexer being connected to the modulator.
8. Apparatus for magnetic therapy as claimed in any preceding claim, wherein the generator for modulating signals comprises:
means for generating a linearly-changing voltage;
voltage-to-frequency converting means;
frequency measuring means;
means for generating a modulating signal; and
a multiplexer.
9. Apparatus for magnetic therapy as claimed in claim 8, wherein in the generator for modulating signals the means for generating a linearlychanging voltage has an input connected to the control block, and an output connected to the voltage-to-frequency converting means and to the frequency measuring means; wherein the voltage to-frequency converting means has outputs connected to the means for generating a modulating signal and the multiplexer; and wherein the means for generating a modulating signal has an output connected to the multiplexer, an output of the multiplexer being connected to the modulator.
10. Apparatus for magnetic therapy comprising a former of carrying sinusoidal voltage, a control block the first output of which through a generator of linearly changing voltage and a converter voltage-frequency is connected with a former of modulating sinusoidal voltage and the generator of linearly changing voltage is connected with a frequency meter while the second output of the control block is connected with the first input of a buffer amplifier whose second input is connected with the output of the modulator and the third output of the control block is connected with a generator of carrying linearly changing voltage whereas the output of the inductor is connected with a magnetic field measuring device, wherein the former of modulating sinusoidal voltage (4.4) is connected with the first input of multiplexer (4.5), the second input of which is connected with the output of a voltage-frequency converter (4.3), the fourth input of multiplexer (4.5) is connected with the fourth output of control block (1), the output of the multiplexer (4.5) is connected with the first input of the modulator (3), the generator of carrying linearly changing voltage (2.1) is connected with a second voltage-frequency converter (2.3) as well as with a second frequency meter (2.2), the first input of the second voltage-frequency converter (2.3) is connected with the first input of the second multiplexer (2.5) through the former of carrying sinusoidal voltage (2.4) as well as with the second input of the second multiplexer (2.5) in a direct manner, while the second output of the second voltage-frequency converter (2.3) is connected with the third input of the second multiplexer (2.5) whose fourth input is connected with the fifth output of control block (1) and the output of the buffer amplifier (5) is connected with the input of inductor (7) through coordinating unit (6), the second input of which is connected with the sixth output of control block (1), the output of the second multiplexer (2.5) is connected with the second input modulator (3) while the input of control block (1) is connected with a programmable timer (9).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19863605148 DE3605148A1 (en) | 1986-02-18 | 1986-02-18 | DEVICE FOR MAGNETIC THERAPY |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8607761D0 GB8607761D0 (en) | 1986-04-30 |
| GB2188238A true GB2188238A (en) | 1987-09-30 |
| GB2188238B GB2188238B (en) | 1989-11-22 |
Family
ID=6294376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8607761A Expired GB2188238B (en) | 1986-02-18 | 1986-03-27 | Apparatus for magnetic therapy |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE3605148A1 (en) |
| GB (1) | GB2188238B (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995005128A1 (en) | 1993-08-18 | 1995-02-23 | The Catholic University Of America | Protection of living systems from electromagnetic fields |
| WO1996008207A1 (en) | 1994-09-12 | 1996-03-21 | The Catholic University Of America | Protection of living systems from adverse effects of electric, magnetic and electromagnetic fields |
| GB2295093A (en) * | 1995-03-30 | 1996-05-22 | Vladimir Tsebenko | Synchronised electro-magnetic therapy device |
| WO1999006109A1 (en) * | 1997-07-30 | 1999-02-11 | Baldi Holding S.A. | Device for magneto-therapy |
| WO2008086624A1 (en) * | 2007-01-17 | 2008-07-24 | Val-Chum, Societe En Commandite | Method and system for administering an anaesthetic |
| WO2010007614A3 (en) * | 2008-06-29 | 2010-05-06 | Venus Technologies Ltd | An esthetic apparatus useful for increasing skin rejuvenation and methods thereof |
| US9981143B2 (en) | 2008-06-29 | 2018-05-29 | Venus Concept Ltd. | Esthetic apparatus useful for increasing skin rejuvenation and methods thereof |
| US11458307B2 (en) | 2016-05-23 | 2022-10-04 | Btl Healthcare Technologies A.S. | Systems and methods for tissue treatment |
| US11464993B2 (en) | 2016-05-03 | 2022-10-11 | Btl Healthcare Technologies A.S. | Device including RF source of energy and vacuum system |
| US11464994B2 (en) | 2016-05-10 | 2022-10-11 | Btl Medical Solutions A.S. | Aesthetic method of biological structure treatment by magnetic field |
| US11484725B2 (en) | 2019-04-11 | 2022-11-01 | Btl Medical Solutions A.S. | Methods and devices for aesthetic treatment of biological structures by radiofrequency and magnetic energy |
| US11484727B2 (en) | 2016-07-01 | 2022-11-01 | Btl Medical Solutions A.S. | Aesthetic method of biological structure treatment by magnetic field |
| US11491342B2 (en) | 2015-07-01 | 2022-11-08 | Btl Medical Solutions A.S. | Magnetic stimulation methods and devices for therapeutic treatments |
| US11491329B2 (en) | 2020-05-04 | 2022-11-08 | Btl Healthcare Technologies A.S. | Device and method for unattended treatment of a patient |
| US11497925B2 (en) | 2016-07-01 | 2022-11-15 | Btl Medical Solutions A.S. | Aesthetic method of biological structure treatment by magnetic field |
| US11534619B2 (en) | 2016-05-10 | 2022-12-27 | Btl Medical Solutions A.S. | Aesthetic method of biological structure treatment by magnetic field |
| US11602629B2 (en) | 2016-05-03 | 2023-03-14 | Btl Healthcare Technologies A.S. | Systems and methods for treatment of a patient including rf and electrical energy |
| US11612758B2 (en) | 2012-07-05 | 2023-03-28 | Btl Medical Solutions A.S. | Device for repetitive nerve stimulation in order to break down fat tissue means of inductive magnetic fields |
| US11633596B2 (en) | 2020-05-04 | 2023-04-25 | Btl Healthcare Technologies A.S. | Device and method for unattended treatment of a patient |
| US11896816B2 (en) | 2021-11-03 | 2024-02-13 | Btl Healthcare Technologies A.S. | Device and method for unattended treatment of a patient |
| US12064163B2 (en) | 2021-10-13 | 2024-08-20 | Btl Medical Solutions A.S. | Methods and devices for aesthetic treatment of biological structures by radiofrequency and magnetic energy |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29518551U1 (en) * | 1995-11-22 | 1996-01-25 | Prodomo S.A., Luxemburg/Luxembourg | Handheld device for magnetic field therapy |
| NL1009568C2 (en) * | 1998-07-06 | 2000-01-10 | Raitec B V I O | Device for treating patients using electromagnetic radiation. |
| NL1011997C2 (en) | 1999-05-07 | 2000-11-09 | Smidsberg B V De | Device for self-treatment. |
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| GB831715A (en) * | 1957-10-04 | 1960-03-30 | Diapulse Mfg Corp | Improvements in athermapeutic apparatus |
| US4266533A (en) * | 1976-11-17 | 1981-05-12 | Electro-Biology, Inc. | Modification of the growth, repair and maintenance behavior of living tissues and cells by a specific and selective change in electrical environment |
| EP0119148A1 (en) * | 1983-03-04 | 1984-09-19 | Compagnie Française d'Electronique Médicale International S.A. ( C.O.F.R.E.M. International SA) | Athermic therapeutic apparatus |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2270721B1 (en) * | 1974-04-12 | 1976-10-08 | Europ Teletransmission | |
| DE3107446C2 (en) * | 1981-02-27 | 1993-11-25 | Schomandl Vertriebs Gmbh | Sine wave generator with Vienna bridge circuit |
| US4428366A (en) * | 1981-05-06 | 1984-01-31 | Alfred B. Kurtz | Electromagnetic apparatus and method for the reduction of serum glucose levels |
| BG36508A1 (en) * | 1983-09-16 | 1984-12-16 | Nenov | Apparatus for therapy with low- frequency magnetic fields |
| DE3335018A1 (en) * | 1983-09-28 | 1985-04-04 | Manfred 5429 Rettert Fichtner | Method for the control of a pulsating magnetic field and a device for conducting the method |
| GB2156679B (en) * | 1984-04-05 | 1987-09-16 | Stephen John Walpole | Therapeutic magnetic field generator |
-
1986
- 1986-02-18 DE DE19863605148 patent/DE3605148A1/en not_active Withdrawn
- 1986-03-27 GB GB8607761A patent/GB2188238B/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB831715A (en) * | 1957-10-04 | 1960-03-30 | Diapulse Mfg Corp | Improvements in athermapeutic apparatus |
| US4266533A (en) * | 1976-11-17 | 1981-05-12 | Electro-Biology, Inc. | Modification of the growth, repair and maintenance behavior of living tissues and cells by a specific and selective change in electrical environment |
| EP0119148A1 (en) * | 1983-03-04 | 1984-09-19 | Compagnie Française d'Electronique Médicale International S.A. ( C.O.F.R.E.M. International SA) | Athermic therapeutic apparatus |
Cited By (50)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995005128A1 (en) | 1993-08-18 | 1995-02-23 | The Catholic University Of America | Protection of living systems from electromagnetic fields |
| WO1996008207A1 (en) | 1994-09-12 | 1996-03-21 | The Catholic University Of America | Protection of living systems from adverse effects of electric, magnetic and electromagnetic fields |
| GB2295093A (en) * | 1995-03-30 | 1996-05-22 | Vladimir Tsebenko | Synchronised electro-magnetic therapy device |
| WO1999006109A1 (en) * | 1997-07-30 | 1999-02-11 | Baldi Holding S.A. | Device for magneto-therapy |
| WO2008086624A1 (en) * | 2007-01-17 | 2008-07-24 | Val-Chum, Societe En Commandite | Method and system for administering an anaesthetic |
| US9981143B2 (en) | 2008-06-29 | 2018-05-29 | Venus Concept Ltd. | Esthetic apparatus useful for increasing skin rejuvenation and methods thereof |
| US11890486B2 (en) | 2008-06-29 | 2024-02-06 | Venus Concept Ltd. | Esthetic apparatus useful for increasing skin rejuvenation and methods thereof |
| US9694194B2 (en) | 2008-06-29 | 2017-07-04 | Venus Concept Ltd | Esthetic apparatus useful for increasing skin rejuvenation and methods thereof |
| US9814897B2 (en) | 2008-06-29 | 2017-11-14 | Venus Concept Ltd. | Esthetic apparatus useful for increasing skin rejuvenation and methods thereof |
| US9901743B2 (en) | 2008-06-29 | 2018-02-27 | Venus Concept Ltd. | Esthetic apparatus useful for increasing skin rejuvenation and methods thereof |
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| US11684794B2 (en) | 2008-06-29 | 2023-06-27 | Venus Concept Ltd. | Esthetic apparatus useful for increasing skin rejuvenation and methods thereof |
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| US11679255B2 (en) | 2020-05-04 | 2023-06-20 | Btl Healthcare Technologies A.S. | Device and method for unattended treatment of a patient |
| US12064163B2 (en) | 2021-10-13 | 2024-08-20 | Btl Medical Solutions A.S. | Methods and devices for aesthetic treatment of biological structures by radiofrequency and magnetic energy |
| US11896816B2 (en) | 2021-11-03 | 2024-02-13 | Btl Healthcare Technologies A.S. | Device and method for unattended treatment of a patient |
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Also Published As
| Publication number | Publication date |
|---|---|
| GB2188238B (en) | 1989-11-22 |
| GB8607761D0 (en) | 1986-04-30 |
| DE3605148A1 (en) | 1987-08-20 |
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| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |