JPH0546776Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention is applicable to high frequency main electronic circuits and medical,
Whether in particular in the treatment of pain and skin diseases or in cosmetics, in particular skin regeneration, in each case a device carrying active electrodes having the characteristic of having a suitable configuration according to the purpose of the device is used. Related to medical or beauty electronic equipment that basically includes:

Effect: The electronic device of the invention operates capacitively and its use poses no risk to the patient and produces surprising effects, often immediately and in other cases within a short period of time.

The operating frequency of this electronic device is approximately 0.8 to 1 to achieve low dispersion and maintain accurate conductivity.
The power required for its generation is modest, in megahertz, which results in low energy consumption and thus achieves high efficiency. In this electronic device, at least one neutral or return electrode is used, and the special tool for carrying out the treatment is supplied with a high-frequency current.

The variance resulting from the use of this electronic equipment is extremely small and is basically attributable to two factors: first, the use of a feedback device which considerably improves efficiency; , the suitability of the distance-to-frequency ratio when taking into account the average value of the load impedance represented by the human body.

The power supplied by the electronic device of the present invention is
It is related to the value of impedance encountered by this device due to the local application of vibrational energy, making it practically impossible to cause burns to the skin by this application of vibrational energy.

The active electrode is electrically insulated and, after adding the hydrate cream to the epidermal area to be treated, contact and/or pine surges are carried out with this electrode on this area, the high frequency main electronic circuit of which A metal heat dissipating element of annular configuration or other suitable configuration is disposed within the envelope of the output stage transformer, the actual characteristics of the coil being unchanged. do not have.

When certain creams specified for certain treatments are used, corrosion may occur in the active electrode mentioned above, and as a result of this corrosion, the insulating layer of this active electrode may become perforated; The shunt terminals of the secondary winding of the above-mentioned transformer are connected to the active electrode carried by the implement, so as to avoid any nuisance discharges from this active electrode to the patient. A capacitor is inserted into the Regarding this active electrode, its insulated active side is
It is protected by the inclusion of a thin layer of resistant, electrically conductive material, such as metal.

[Embodiments] For the sake of clarity, reference is made to the accompanying drawings which represent embodiments of the present invention, but these embodiments are not intended to limit the scope of the present invention.

Referring to FIG. 1, a special tool U is shown which is modified depending on the treatment and is subjected to high-frequency vibrations through a conductor 1, the main electronic circuit comprising an oscillation stage 2 with an integrated circuit and an output of this oscillation stage. is sent to an amplification stage consisting mainly of a transistor 3 and having a minimum ohmic resistance from the collector of this transistor and a very high inductance or impedance 4 for the highest voltage, which amplification stage is necessary for the signal sent to the driver 5. Perform amplification. This driver sends these signals to a resonant circuit 6 which, via a radio frequency transformer, is connected to a transistor 7 which, together with its individual resistor 8, is included in a power amplifier. Further transistors 9 can be arranged together with their individual resistors 10 to form an output stage and when even greater power is required. This output stage consists of a high frequency transformer 1
1 and its secondary winding terminals 1 and 12 are connected to the active device U and the neutral electrode N, respectively. Into the central jacket of the transformer 11 there is inserted an annular metal element 13 or other metal element, for example of brass or aluminum, which essentially has a heat dissipating function and is placed towards the ventilation fan 14. It will be destroyed. Terminal 1 of the secondary winding of the transformer 11 is connected to the device U through an anti-irritation capacitor 15, which capacitor is connected to the distance between the currents that the active electrode conducts directly to the patient in the event of a perforation on its active side. prevent the occurrence of

This main electronic circuit includes a supply stage.

The device U comprises an active electrode A, which contacts and/or softly slides over the area of the patient to be treated by applying light massage, the electrode being coated on the outside with a suitable plastic material. It is electrically insulated by layer B and inserted into a handle that is easy and comfortable to operate manually. This active electrode carries radio frequency energy and does not make direct contact with the patient's epidermis, thus eliminating the possibility of sparks and ensuring that the metal part of electrode A does not connect the epidermis to the capacitor. Form.

Preferably, prior to applying the active electrode A to the epidermis, a suitable cream is sprayed onto the epidermis. This electrode operates capacitively and focuses the low energy passing through the epidermis inward.

FIG. 2 shows in detail the active electrode A, which is coated on the outside with a layer of suitable plastic material B.
and is removably connected to a tightening bushing C which is insulated by and axially integrated into the handle D forming the implement U. This plastic layer B is protected by a thin layer of conductive material, ie a thin metal layer E, approximately 0.1 to 0.3 mm thick, and the incorporation of this layer into the electrode is carried out in any suitable manner. For example, the thin metal layer described above forms a deep-drawn capsule whose edges are welded to the back side of the electrode. The thin metal layer can also be attached by means of a suitable adhesive, or else achieved by electrolysis.

The device is completed by the provision of a clock to indicate the time limit for each treatment, which clock is connected to the main electronics of the device to disconnect the active electrodes.

In the case of active electrodes used with a built-in thin metal layer E, the power will be slightly increased in order not to reduce the efficiency during treatment and thus also to obtain good results. .

That the handle of the instrument U has suitable elements for energizing the device, and that the active electrode has a shape and configuration optimal for its function,
Needless to say.

Due to its fundamental nature, the invention can also be realized in other forms that differ in detail from those generally shown in the embodiments, and these other forms as well as this embodiment can be realized in accordance with the above-mentioned utility model. It is naturally included in the scope of registration claims. Therefore, this medical and cosmetic electronic device can be realized with optimal devices, components, and accessories that are all encompassed within the spirit of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a theoretical circuit diagram of the main electronic circuit of the medical and cosmetic electronic device according to the present invention, and FIG. 2 is a front view of the active electrode connected to the handle in the medical and cosmetic electronic device according to the present invention. Figure. Explanation of symbols, 2...Oscillation stage, 3...Transistor, 4...Impedance, 5...Driver, 6...
...Resonance circuit, 7, 9...Transistor, 11...
Transformer, 13... Metal element for heat dissipation, 14... Ventilator, 15... Anti-irritation capacitor, A... Active electrode, B... Plastic material layer, C... Bushing, D... Handle, E... ...metal thin layer, U...
Tools.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Medical and cosmetic electronic devices (operating at frequencies from 0.8 to 1 MHz) that power devices carrying active electrodes and capacitively transmit current. , having at least one neutral (return) electrode wearable on the human epidermis, and comprising a high frequency main electronic circuit to avoid dispersion of effectiveness; includes an oscillator circuit that outputs to a transistor, the amplified signal of said transistor being received by a driver, then by a resonant circuit, and finally amplified by at least one output transistor and sent to a high frequency transformer. The high frequency transformer is thus connected to the device carrying the active electrode, the high frequency transformer including a central jacket surrounding a heat dissipating metal element and the secondary winding of the transformer being connected to the active electrode so as to protect the patient from electrical discharges. The medical and cosmetic electronic device, characterized in that a capacitor is inserted into the shunt terminal of the secondary winding before being connected to a tool carrying the device. (2) The medical and cosmetic electronic device according to claim 1, characterized in that the output transistor in the high frequency main electronic circuit is supplemented by another transistor to obtain even greater power. Beauty electronics. (3) In the medical and cosmetic electronic device according to claim 1, the active electrode carried by the device worn on the human epidermis is preferably formed by a metal electrode connected to the high frequency main electronic circuit. and is preferably electrically insulated on the external active side of the device which carries out contact and/or pine surgery to the area to be treated subsequent to the addition of the hydrate cream to the area to be treated. The medical and beauty electronic equipment. (4) The medical and cosmetic electronic device according to claim 3, wherein the insulated active side of the active electrode is made of a metal or the like that is perforated due to an accident of the insulation and that avoids direct conduction of current to the patient's skin. Medical and cosmetic electronic equipment, characterized in that it is protected from erosion and corrosion by the inclusion of a thin metal layer of such a resistant, electrically conductive material.