DE2529841A1 - ATHERMAPEUTIC ULTRA SHORTWAVE DEVICE - Google Patents

Description

DIAPULSE CORPORATION OF AMERICA, 4 Nevada Drive, Lake Success, New Hyde Park, N.Y. 11040 (V.St.A.)

Athermaleutic ultra-short wave device

The invention relates to an athermaleutic ultrashort wave device for athermapeutic treatment of life the tissue without generating heat in it.

Athermaleutic devices are used for electrotherapy by living, in particular human, tissue.

The invention has for its object to provide an athermapeutisches device of this type in which the Pulse length, the pulse frequency and the pulse penetration power of the generated high frequency vibrations

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Bremen office:
D-2800 Bremen 1 Postfach 786, Feldstrasse 24 Telephone: (0421) * 74044 Telex: 244953bopatd Telegr.: Diagram, Bremen

Bremen accounts: Bremer Bank, Bremen (BLZ 29080010) 1001449

PSchA Hamburg

(BLZ 20010020) 126083-202 Munich office: D-8000 Munich 90 Schlotthauer Straße 3 Telephone: (089) 652321

Telegr.: Telepatent, Munich

BOEHMERT & BOEHMERT

a wider frequency range than before can be changed to prevent harmful heat development in all Avoid area settings.

According to the invention, this object is achieved by an oscillator for generating continuous, high-frequency electrical vibrations of a given frequency; a sense amplifier connected to the oscillator, which two Transistors for amplifying the predetermined high-frequency electrical oscillations generated by the oscillator are supplied, has and emits these vibrations as radio frequency pulses; a variable pulse width generator, which can be selected with the push-button amplifier for applying a positive pulse to it Pulse width is connected, which is the pulse width duration of the device during the high output time of the pulse generator will; a power amplifier connected to the probe amplifier and to a treatment head with two cascaded electron tubes, which are operated by a transistor and upon supplying the amplified radio frequency pulse from the sense amplifier to the transistor, the power amplifier cause a pulse of predetermined width and frequency to be applied to the treatment head ^ a variable Pulse frequency generator connected to the variable pulse width generator and an adjustable time module unit has, which acts as an astable multivibrator and generates a selectable oscillation frequency, which is given as a trigger pulse to the variable pulse width generator as well as to the power amplifier, so that the power amplifier generates a pulse of selected width and frequency and when actuated on the

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Treatment head there; a variable power control which is operated by an operator with a commercial electrical voltage source can be connected and connected to the power amplifier and for setting the maximum output penetration power, .which by the power amplifier is supplied to the treatment head is actuatable; a low voltage electrical source, which can be charged with current when the variable power control is actuated and such it can be actuated that the electrical energy supplied to the electrical power control is reduced and is rectified, the low voltage source at the same time for supplying a direct current lower Voltage to other parts of the device is used; and a medium and high voltage source which is a transformer for generating a low and a medium output voltage for supplying a positive medium one Voltage to the variable power control, the low voltage output of the transformer to the cathode wires of the electron tubes in the power amplifier as well as to an indicator lamp and to a time delay unit is fed to the medium and high voltage source, as well as a transformer, which by a rectifier bridge and a JPilter capacitor arrangement in such a way can be actuated that its high secondary voltage is delivered to the electron tubes of the power amplifier will.

The device according to the invention differs from that according to US Pat. No. 3,670,737 in that a Circuit is used that allows the pulse length, pulse frequency and pulse penetration

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to change performance continuously over a larger area. This results in a more powerful electromagnetic PeId, which can be set to extremely short pulse durations, so that subsequent Heat effects in living tissue or in the patient can be avoided over a larger setting range.

In an advantageous manner, an operator can easily create any desired combination in the device according to the invention of maximum pulse power, pulse repetition frequency and pulse duration over a proportionately Set a wide range, but still have undesirable warming or overheating phenomena in the living tissue can be avoided over a wide range of settings. According to the invention is a separate, continuous variable pulse generator provided, which can be adjusted over a relatively wide range, without generating heat in the living tissue. The athermapeutic device according to the invention has a considerably greater maximum power that can be applied to human tissue by the Pulse length can be reduced proportionally to the increase in peak power. In this way it can be achieved that the average power output remains at approximately 40 watts, but with peak powers of more than 100,000 watts can be achieved by reducing the pulse length to less than a microsecond will.

The athermaleutic device according to the invention has a separate, continuously adjustable pulse frequency generator resulting in a greater pulse rate

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frequency range can be set as before. Any desired frequency can be set within the range to adjust.

When athermaleutic device according to the invention can the maximum power that is delivered to the patient can be more than a hundred times greater than previously the case while maintaining the same average output power delivered to living tissue, whereby additional heat is not generated.

Further features and advantages of the invention emerge from the claims and from the following description, in which an exemplary embodiment is explained in detail with reference to the drawing. It shows:

Fig. 1 is a block diagram showing the various groups of devices that make up the athermaleutic Form device according to the invention as a whole, are shown;

Fig. 2 is a schematic diagram of the electrical Circuitry of the oscillator, the sense amplifier and the variable pulse width generator;

Fig. 5 ei * ¹ schematic diagram of the electrical circuit of the power amplifier, the treatment head and the variable pulse generator frequency. and

4 is a schematic diagram of the electrical circuit of the variable power control; the low voltage supply as well as the medium and high voltage supply.

In the block diagram shown in Fig. 1, the various

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different sections or groups of the device as well as the major connections between these are shown which enable the device to achieve maximum penetration output in the range of 100,000 watts or more, while being, at the same time, a medium one Heat output of 38 watts or less results. In which shown embodiment, an oscillator 1 is connected to a sense amplifier 2, which in turn with a variable pulse width generator 3 and a power amplifier 4- is in connection. The latter supplies the output energy to a treatment head 5.

The variable pulse width generator 3 is still with a variable pulse frequency generator 6 is connected. All of the above are combined by a Exeder voltage source 8 via a line 10 with low voltage provided. A variable power control 7 is both to the low voltage source 8 and connected to a medium and high voltage source 9 and to the power amplifier 4, whereby a continuous change option for setting the maximum penetration power, which is achieved by the Power amplifier 4 delivered to treatment head 5 and which is determined by the voltage supplied by the medium and high voltage source 9, results.

The oscillator 1 is shown in detail in FIG. As can be seen there, it has a transistor Q 1 as well as a crystal XTAL, which together generate a signal at the resonance frequency of the crystal, which at the desired output frequency of the device

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or any divisor or sub-multiple thereof. Resistors R1 and R2, which are connected by line 10 to the low voltage source 8 and to earth G, form a voltage divider network, which gives forward bias to the base of transistor Q1, while a resistor R3 provides an emitter bias for transistor Q / i.

A V / resistance R6 reduces the throughput of the low voltage source 8 brought up the voltage to the desired value for supplying the collector of the Transistor Q1. A capacitor C1 forms a high frequency equence bypass for the emitter of transistor Q1, while a capacitor C2 acts as a power line bypass serves. The necessary tuning for the crystal oscillator XTAL is done by a variable inductance L1 in connection with a stray circle capacitance.

The circuit of the sense amplifier 2, as shown in Fig. 2, has transistors Q2 and Q3 with resistors R9, R10, R11, RI3 and RI5 as well as capacitors C6, C7, G8, G9, C11 and C12 and inductors L2, L3 and L4 on. Resistors R9 and R10 are connected in series to power supply line 10 and ground G and form a voltage divider network which biases gate # 1 of field effect transistor Q3 which is fed through a high frequency choke coil L2. The signal voltage generated by the oscillator 1 is fed through a line 12 and a capacitor G8 to gate / 1 of the transistor Q3, while a resistor Ri5,

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which is bridged by a capacitor C11, forms a bias voltage supply for the transistor Q3, the gate £ 2 of which is connected to the emitter of the transistor Q2.

The transistor Q2 receives its collector potential from the supply line 10 via the resistor R11, which in turn is bridged by the capacitor C7. , The base of transistor Q2 receives through a line 23 a pulse of the variable pulse width generator 3> which the transistor Q3 is applied to the gate £ 2 wherein the resistance RI3 forms an emitter load for the transistor Q2. The inductance Lj5, which is in series with the capacitor C9, forms a series resonance circuit at the operating frequency of the sense amplifier 2, which has the effect that the gate / 2 of the transistor Q3 is at high frequency ground potential.

When no pulse is received from the variable pulse width generator, there are transistors Q2 and Q3 in the switched-off, non-conductive state, so that no high-frequency signal from the oscillator 1 through the sense amplifier 2 is transmitted. Upon receipt of a positive pulse from the variable pulse width generator 3, transistor Q2 conducts, whereupon a positive pulse is applied to gate / 2 of transistor Q3. Through this the transistor becomes conductive and transmits and amplifies the output from oscillator 1 through capacitor C8 to gate / 1 of transistor Q3 and through the capacitor CT 2 and a line 24 to the power amplifier 4, in the form of a radio or high frequency pulse. The inductance L4 causes the Transistor Q3 from the electrical power which

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is fed through line 10 to other parts of the device, is isolated.

The variable pulse width generator 3 has a clock module unit IC2, which acts as a monostable flip-flop. When applying a negative trigger pulse the flip-flop is switched on to the clock module unit, its output being driven to high potential. The voltage across the capacitor C4, which is fed to the supply line via a resistor R7 and a rheostat R8 10 is connected, increases at a rate which is determined by the values of the capacitor C4- and the rheostat R8 is set to a point at which the flip-flop is reset, causing the output goes to a low potential and the capacitor C4- is discharged. The time interval during which the output of the variable pulse width generator 3 is at high potential, determines the pulse width time of the device, this pulse width being adjustable by actuating the variable rheostat R8. The capacitors C3 and C35 serve as bridges and eliminate unwanted control voltage fluctuations.

The output of the variable pulse width generator 3, set by the rheostat R8, is a positive one Pulse applied to the base circuit of transistor Q2 in the manner described above through conduction 23 is abandoned. Since the pulse width duration can be adjusted at any time by actuating the rheostat R8 the pulse width can be shortened to a microsecond or less. When the pulse width is set to such a short period of time, leaves

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the average heating or thermal power, which is supplied as output power by the device, through the operator to a very small compared to the desired maximum or penetration power Set value.

The power amplifier 4, as shown in Fig. 3, has cascaded electron tubes V1 and V2 which are driven by a transistor Q4. The base of the transistor Q4 receives the pulsed high-frequency output of the sense amplifier 2 via the line 24 and through a capacitor C12 (FIG. 2) and the transformer windings L5-L6. Transistor Q4 is normally in a truncated condition with no forward bias at the base until the amplified radio frequency pulse from sense amplifier 2 is applied, rendering the transistor conductive for the duration of the pulse. Similarly, electron tubes V1 and V2 are normally cut off because of a negative bias applied to the tubes through resistors R16 and R19, respectively. The latter is connected by a line 15 to the regulated negative voltage output of a time delay unit TDR of the high voltage source 9.

The transistor Q4 is taken from the low voltage supply line 10 via inductance L7 with collector voltage applied. Capacitors C13, C14, C16 and G18, together with inductors L8, L9 and L10, form a matching impedance matching network, so that the

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2523841. M,

strengthened radio frequency pulse from transistor Q4 to the Electron tube 71 is given. The resistance 18 pounds and the inductance L11 work as a noise suppressor for the plate circle of the electron tube V1, while inductors L12 and LI3 go along with the capacitors C20, C21, C23 and C24- an adjustment- and forming an impedance matching network so that the amplified radio frequency pulse signal from the electron tube V1 can be given to the electron tube Y2.

Resistor R20 and inductor L24 form one Noise suppressor for the plate or anode of the electron tube V2, while the capacitors C26 and C27 together with the inductance L16 a balancing and Impedance matching network representing the amplified radio frequency pulse from the tube V2 to the treatment head 5 through a grounded coaxial cable 45 docks. The capacitors CI5, CI7, C19, C22 and C29 are all used for high frequency bridging, while the resistor RI7 that of the variable power control 7 through the line I7 to the screen of the electron tube V1 is reduced. Of the Resistor R21 serves as a filter for the screen grid circuit of the electron tube V2, which is connected by a line 22 is associated with the variable performance increase 7.

The treatment head 5 shown in Fig. 3 usually has the shape of a movable drum or the like and has a coupling and blocking capacitor C5I, which is connected to the coaxial cable 4-5 and a tunable Circle within the moving drum

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is bound. The tunable circuit, which receives power from the power amplifier 4 at a frequency of 27 MHz, has coupled inductances L 52 and L 53 and an adjustable capacitor C54. A signal lamp 14 is connected to the adjustable circuit through an inductance L54 and its brightness indicates whether the adjustable or adjustable circuit is correctly adjusted ^{to the human or animal tissue to be treated by actuating the adjustable capacitor C5 Z (-.}

The variable pulse frequency generator 6 has a clock module unit IC1, which works as an astable multivibrator, tiobei the frequency of the oscillation through the Values of the rheostat R4, the resistor R5 and the capacitor C10 are determined and adjusted by adjusting the Rheostat R4 is adjustable. The vibration produced in this way by the variable pulse frequency generator 6 is in the form of a short negative pulse that acts as a trigger pulse on the variable pulse width generator 3 is abandoned by means of lines 36 and 38. Since the clock module unit IC1 of the variable pulse frequency generator 6 connected to the clock module unit IC2 of the variable pulse width generator 3 and both coupled by line 23 to transistor Q2 are, the mode of operation of the power amplifier 4 is accordingly as described below Way selectable.

The variable power controller 7 comprises a normally open contact switch SW1 to which a line the usual household electricity voltage source L1.

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is closed. When the switch 31A is closed, voltage is applied from L1 via a line 11 and through a fuse FI to one end of the primary winding of a transformer T1, which forms part of the medium and high voltage source 9. This voltage is likewise given through the line 11 and a fuse F2 to a contact set K1B of a normally open relay KI which, when it is closed, connects the current source L1 to a line 28 which connects through a resistor R37 to a grounded indicator lamp I3 and extends to one end of the primary winding of a capacitor T2 ** within the medium and high voltage source 9. Similarly, one end of the primary winding of a transformer T3, which forms part of the low-voltage source 8, is supplied with voltage via a fuse ¥ 3 and the line 11. The opposite end of the transformers T1, T2 and T3 is connected to the supply line L2 via a common line 5.

The variable power control 7 has a control potentiometer R22 which can be operated so that the screen grid voltage, which the electron tube V2 is supplied, can be varied. By actuating the potentiometer R22, a part of the applied voltage to the base of a power-controlled transistor Q5, which acts as a voltage regulator works. When the voltage applied to the base of transistor Q5 changes, so does the voltage at its emitter also changes. Because this voltage through the line 22 and the resistor R21 is applied to the screen grid of the electron tube V2, the output power of the electrons also becomes

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tube V2 varies, so that the operator the maximum penetration power achieved by the power amplifier 4 is generated, can regulate. The resistor R21 in the power controller 7 cooperates with the Resistance of the potentiometer R22 as a voltage divider, through which the applied voltage to a suitable Operation of the transistor 5 suitable potential is reduced. The variable power control 7 has also a clock T, which has contacts SW2, which with the already mentioned line 15 for negative power supply are connected. The negative potential is also applied to contacts through line 15 S1W of the switch SW1 abandoned, the purpose of this measure being described below will.

The transformer T3 of the low voltage source 8 is connected with its secondary winding to a full-wave rectifier diode bridge D1 to D4. The DC voltage output is filtered by a capacitor C35, a resistor RJO and a capacitor C36. Of the Resistor R3O also causes a drop in the on one Regulating transformer Q5 applied voltage. A resistor R33 and a zener diode DI3 are across the rectified DC voltage output switched and cause the supply of a regulated voltage to the base of transistor Q6. This results in a regulated output from transistor Q6 which is through conduction 10 to the oscillator 1, the sense amplifier 2, the variable pulse width generator 3, the transistor Q4, which forms part of the power amplifier 4, and the variable pulse frequency generator 6 in FIG

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abandoned in the manner already described xvird.

The transformer T1 for the medium voltage supply, the one part of the medium and high voltage source already mentioned 9 forms, as long as the transformer T3 through supply lines 5 and 11 when closing sen of the contacts S1A of the switch SW1 of the variable power controller 7 is supplied. This application of tension produces an alternating current output from the secondary winding of the transformer T1, which is rectified by diodes D5 and D6. This will generates a suitable positive potential, which is generated by the capacitor C32 with the resistor grounded R3I, which acts as a preload resistor, rectified ' will. This filtered potential is then closed by closing the contacts K1A or the relay K1 to line 17 and thus through resistor R21 given to the collector of transistor Q5, which forms part of the variable power control 7. The filtered potential then reaches the Screen grid of the electron tube V1 in the power amplifier 4-, as already mentioned.

The low voltage winding LV of the transformer T1 is connected to a line 40 which carries a low voltage heating current to the thermionic cathodes of the electron tubes Vi and V2 of the power amplifier 4- supplies. In addition, the low voltage winding is LV of transformer T1 with the grounded indicator lamp 11 as well as with the grounded heating coil of the time delay unit TDR connected. The diode D7, which is connected to the secondary winding of the transformer T1

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is, supplies a negative direct voltage potential, which is filtered by a capacitor C33 and then lowered to a suitable potential by a resistor R32, whereupon the regulation by the Zener diode D8 takes place by closing the contacts of the time delay unit ¹ HJ) R in the already mentioned Way through the line 15 to both the clock T and the switching contact S1B of the switch SW1. In addition, the potential is applied to the control grids of the electron tubes V1 and V2.

Accordingly, after the switching contacts S1A have been closed with the corresponding voltage applied to the transformers T1 and T3 and after the required warm-up period for the time delay unit TDR has elapsed when the contacts are closed to operate the entire device, it is only necessary to apply voltage to the transformer T2. This can be done by manually setting the timer T for a certain period of time, whereby the internal timer switch SW2- is closed, which applies the negative voltage supplied by the line I5 ^ ³³ - to the winding RW of the relay K1 by means of a line 16. This energizes the relay, closing its normally open contacts K1A and K1B.

When relay contacts K1A are closed, the one supplied by transformer T1 becomes positive Potential through the line 17 to the variable power control 7 and to the screen grid of the

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Given electron tube V1, as already described In an analogous manner, the simultaneous closing of the relay contacts K1B creates the supply circuit through the line 28 closed to the primary winding of the high-voltage transformer T2, the secondary winding of which has a Provides AC output to a rectifier bridge comprising diodes D9, D10, D11 and D12. Of the The rectified output of the diode bridge is filtered by a capacitor C34- and has a bias resistor R 36 to limit the peak current supplied by this filter-capacitor arrangement on. This accordingly eliminates the possibility of damage to the electron tubes V1 and V2 on which the high voltage output of the filter-capacitor arrangement through the line 19, the resistor R35 and the inductance L25 is given, reduced to a minimum.

When the transformer T1 is excited in the manner described above, the entire device is then capable of pulsed Deliver high-frequency radiation from the treatment head 5 as soon as the operator either the Setting the timer T for a certain period of time or by operating the switch SW1 manually which closes contacts S1B of the switch will. Assuming first that the timer T is set to a specific treatment time, in this way, a power circuit is closed, which is connected to the transformer output line 15 through timer T and via line 16 to winding RW of relay K1, causing the relay energized and its contacts K1A and K1B closed will.

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252984Ί -ι *.

By closing the contacts K1A, the medium voltage is transferred from the filter capacitor C32 to the line 17, while the closing of the contacts K1B the primary winding of the high-voltage transformer T2 ah the other side of the voltage source L1 by means of the lines 28 and 11 connects to the closed contacts S1A of the switch SW1. In addition to this, it causes a closing the relay contacts K1B the voltage supply of the resistor R37 unidam with the indicator lamp 13, since this are also connected to line 28. Accordingly, the device works with delivery of the desired ones Output power at the treatment head 5 until the time preselected by the timer T has expired. then automatically becomes the supply circuit for the winding of relay K1 interrupted. Accordingly, the primary winding of the transformer T2 is taken from the supply source 11 switched off. The indicator lamp 13 goes out, while the lamps 11 and 12 continue to light. The entire device can then be switched off, with the lamps 11 and 12 going out, by pressing the switch SW1 is brought to the "off" position, causing the contacts S1A and S1B are opened.

When it is desired to keep the device in operation for an indefinite period of time, the operator rotates just set switch SW1 to the idle or warm-up position. This makes the primary energy of the Low-voltage source 8 and the medium-voltage transformer T1, the indicator lamp 11 lights up, namely through the line 11. As soon as the predetermined time has expired and then the time delay unit TDR is actuated, the lamp lights up

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12 and indicates that the device is ready for another Actuation is in the appropriate operating state ". Instead of setting the timer T to a defined Treatment time, as described above, turns the operator merely sets the switch SW1 to the third or "on" position, causing the timer T bridged and the supply line connected directly to line 16 x ^ ird. This will make the winding RW of the relay K1 supplied with voltage, the contacts close in the manner described while the timer T remains inactive.

From the foregoing description, in the athermaleutic apparatus as described above, the pulse width, pulse frequency and pulse penetration power are each continuously variable. An operator can easily adjust the device to provide any desired combination of maximum pulse power, pulse repetition frequency and pulse width duration. This creates a much more powerful electromagnetic field than was previously possible. The field can be adjusted by an operator to an extremely short pulse duration, which results in only negligible heating. The maximum penetration power at the exit can be 100,000 watts or more, while at the same time only an average heat output of only 38 watts or less is emitted, which completely prevents overheating of the tissue to be treated, regardless of the size of the power supplied.

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Claims (9)

BOEHMERT & BOEHMERT EXPECTATIONS M J Athermapeutisch.es ultra-short wave device for athermapeutic Treatment of living tissue without generating heat in it, characterized by an oscillator (1) for generating continuous, high-frequency electrical oscillations of a given frequency; one with the oscillator (1) connected to the sense amplifier (2), which has two transistors for amplifying the predetermined high-frequency electrical oscillations, which are supplied by the oscillator, and this Emits vibrations as radio frequency pulses; a variable Pulse width generator (3)> the one with the sense amplifier (2) is connected to the same with a positive pulse of selectable pulse width for applying it, which is the pulse width duration of the device during the high output time of the pulse width generator (3) will; one to the sense amplifier (2) and one 45 609836/0237 BOEHMERT & BOEHMERT Treatment head (5) connected power amplifier (4-) with two cascaded electron tubes (T1, V 2) operated by a transistor and upon supplying the amplified radio frequency pulse from the sense amplifier to the transistor, the power amplifier cause a pulse of predetermined width and frequency to be emitted to the treatment head (5); a variable pulse frequency generator (6) connected to the variable pulse width generator (3) and an adjustable time module unit (TC) which acts as an astable multivibrator and a selectable one Oscillation frequency generated as a trigger pulse on the variable pulse width generator (3) as well as on the power amplifier (4) is given so that the power amplifier is given a pulse of selected width and frequency generated and when actuated on the treatment head (5); a variable power control (7), which can be connected to a commercial electrical voltage source by an operator and with connected to the power amplifier (4) and for setting the maximum output penetration power delivered by the power amplifier to the treatment head is actuatable; an electric Low voltage source (8), which can be charged with current when the variable power control (7) is actuated and is operable to reduce the electrical energy supplied to the electrical power controller and is rectified, the low voltage source simultaneously for supplying a direct current low voltage to other parts of the device is used; and a medium and high voltage source (9), which a transformer to generate a low - 2 60983 6/0237 BOEHMERT & BOEHMEPT and an intermediate output voltage for supplying a positive medium voltage on the variable power control (7), the low voltage output of the Transformer to the cathode wires of the electron tubes (V 1, V 2) in the power amplifier (4) and to an indicator lamp (13) and to a time delay unit (TDR) of the medium and high voltage source (9) is fed, and has a transformer, which is through a rectifier bridge and a filter-capacitor arrangement can be actuated in such a way that its high secondary voltage is output to the electron tubes of the power amplifier (7). 2. Ultra short wave device according to claim 1, characterized in that the oscillator (1) has a crystal (XTAL) and a transistor (Q 1) having a pulse at the resonance frequency of the crystal or a Generate multiples of the same for transmission to the sense amplifier (2). 3- ultra-short-circuit device according to claim 1 or 2, characterized characterized in that the sense amplifier (2) has a transistor (Q 2) connected to the oscillator (1) which receives a signal voltage from the latter, as well as one second transistor which works as an emitter follower amplifier (Q 3) and which is driven by the variable pulse width generator (3) the positive pulse generated on the former gives up, causing the latter to transmit and amplification of the radio frequency pulses received by the oscillator (1) can be actuated. 4-, ultra-short wave device according to one of the preceding 609836/0237 BOEHMERT & BOEHMEFT claims, characterized in that the variable pulse width generator (3) a time module unit for applying a positive pulse to the push-button amplifier (2) (IG 2), which can be preselected by an operator for a period of only one Microsecond or less to control the average output thermal power, which is delivered by the device to a patient, is adjustable so that the Thermal power can be made negligibly small compared to the desired maximum penetration power can. 5. Ultra-short wave device according to one of the preceding Claims, characterized in that the power amplifier (4-) is a balancing and impedance matching network having which the radio frequency pulse generated in the power amplifier (4-) to the treatment head (5) couples. 6. Ultra short wave device according to one of the preceding claims, characterized in that the variable power control (7) a potentiometer to regulate the on the power amplifier (4-) and then on the treatment head (5) has abandoned voltage. 7. Ultra short wave device according to one of the preceding claims, characterized in that the variable power control (7) has a timer (T) which, if desired, is used to preselect the duration of the actuation of the athermaleutic device can be actuated. 8. Ultra-short wave device according to one of the preceding 609 8 ^36/4 O ^ 37 BOEHMERT & BOEHMERT Claims, characterized in that the low voltage source (8) has a transformer whose low-voltage secondary winding through a full-wave rectifier bridge with a level transistor to give up a regulated voltage to the oscillator (1), the variable pulse frequency generator (6), the variable Pulse width generator (3), the sense amplifier (2) and the power amplifier (4) is connected. 9. Ultra short wave device according to one of the preceding claims, characterized in that the variable pulse frequency generator (6) is operable to generate a relatively high pulse frequency range, which adjustable by an operator to generate a selected frequency within the range is. - 5 609 8 36/0237