SU1438784A1 - Apparatus for reflexotherapy - Google Patents

Abstract

The device for reflexology contains a frequency shaping unit 1 containing a frequency divider 2, a tunable crystal oscillator 3, a balanced mixer 4, filter 5, also contains a frequency divider 6, switch 7, frequency control unit 8, adder 9, functional converter 10, source 11 reference voltage, adjustable amplifier 12, comparison unit 13, active electrode 14, passive electrode 15, reference impedance 16, which can be used as headphones, detector 17. s 2 3.pff, 2 ill. cl

Description

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The invention relates to medical technology and can be used, in particular, for anesthesia in osteochondrosis.

The purpose of the invention is to simplify and shorten the procedure time.

Fig. 1 shows a structural electrical circuit of the device; Fig. 2 shows a block forming a reference | Q frequency.

The device (Fig. 1) contains a reference frequency shaping unit including a second frequency divider 2, an adjustable crystal oscillator 3, 15 balanced mixer A, filter 5, also contains the first frequency divider 6, switch 7, frequency control unit 8, adder 9 A functional

the second balanced mixer 24 and the input of the divider frequency 2, the output of which through the frequency divider 21 is connected to the second input.

The device works as follows.

According to a known method, the formation of a voltage of a stable frequency of 992 Hz in the proposed device is based on the circuit realization of the expression

,

992

- 2

-T

.n-t

A signal with a frequency hi (for example, 2 32768 kHz) from the output of a tunable crystal oscillator 3

Converter 10, source 11 of support-20 is fed to the first input of a balanced voltage, adjustable amplifier 12, comparison unit 13, active electrode 14, passive electrode 15, reference resistance 16, which can be used as headphones, detector 17.

The output of the filter 5 is connected to the input of the frequency divider 6, the outputs of which through the switch 7 are connected to the inputs of the adder 9, the output of which is after 30 the frequency fj. From the output of the filter 5, the signal-functional converter 10 and l with a frequency fj enter the input of the adjustable amplifier 12 connected to the active electrode 14, the reference voltage source 11 is connected to the first input of the comparator unit 13, the output of which is connected to the input of the adjustable amplifier 12 , the second input of the comparator unit 13 through the detector 17 is connected to the passive electrode 15 and the first Pin of the reference resistance. "16 the second pin of which is connected to the common bus of the device.

Mixer 4 and through the divider 2 often-, you with the coefficient of K 2 (for example, 32768/2 1024 Hz) with the frequency fj fed to the second input of the balance mixer 4, the voltages fed to the inputs of the mixer 4 are mixed and at its output a signal with frequency fb - 2 (fj 31744 Hz) is provided by filter 5, tuned

the second frequency divider 6 with a division factor and more (for example, 2 2) and from the outputs of frequency divider 6, which allows you to select the desired mode and a given signal frequency, through the switch 7 enters the inputs of the adder 9. With the selected division factor K 2 the output of the frequency divider 6 is generated; signal with a frequency of 992 Hz, incoming) through the switch 7 and the adder 9 on

The block I of the formation of the reference frequency (Fig.2) contains a quartz gene. rator 19, tunable crystal oscillator 20, frequency divider 21, First balanced mixer 22, first filter 23, second balanced mixer 24, second filter 18. When using frequency shaping unit 1

45

the input of the functional converter 10 (the functional converter allows to receive the signal of the necessary form — sinusoidal, sawtooth, trapezoidal); the voltage of the sinusoidal form is fed to the input of the adjustable amplifier 12, to the output of which is connected an active

Fig. 2, the output of the filter 18 must be attached. 14. The passive electrode 15 is then connected to the input of the frequency divider 6, fastened on the arm opposite to

the second balanced mixer 24 and the input of the divider frequency 2, the output of which through the frequency divider 21 is connected to the second input.

The device works as follows.

According to a known method, the formation of a voltage of a stable frequency of 992 Hz in the proposed device is based on the circuit realization of the expression

,

992

- 2

-T

.n-t

out gene

20 arrives at the first balanced input

30 frequency fj. From the output of the filter, 5 signals with a frequency fj are fed to the input,. "

Mixer 4 and through the divider 2 often-, you with the coefficient of K 2 (for example, 32768/2 1024 Hz) with the frequency fj fed to the second input of the balance mixer 4, the voltages fed to the inputs of the mixer 4 are mixed and at its output a signal with frequency fb - 2 (fj 31744 Hz) is provided by filter 5, tuned

 frequency fj. From the output of the filter, 5 signals with a frequency fj are fed to the input

the second frequency divider 6 with a division factor and more (for example, 2 2) and from the outputs of frequency divider 6, which allows you to select the desired mode and a given signal frequency, through the switch 7 enters the inputs of the adder 9. With the selected division factor K 2 the output of the frequency divider 6 is generated; signal with a frequency of 992 Hz, coming through the switch 7 and the adder 9 on

45

input functional converter i 10 (functional converter allows you to receive the signal of the desired form; we are sinusoidal, sawtooth, trapezoidal), the sinusoidal voltage is fed to the input of the adjustable amplifier 12, the output of which is connected to the active electrode

and the controlled input of the tunable quartz oscillator 20 must receive a signal from the output of the control unit 8.

In block 1 of the formation of the reference frequency of FIG. 2, the output of the quartz oscillator 19 is connected to the second input.

auricle, which will impact on the current. When the active electrode is pressed to the impact zone located on the auricle, a current with a frequency of f 992 Hz flows through the patient and through the load resistance 16

At the same time, the load resistance 16 (for which a 1600 Ohm resistor can be used, simultaneously plays the role of an audible indicator of the procedure) The voltage at a frequency of 992 Hz is detected, which is detected by the detector 17 and from its output goes to the first input comparison unit 13, to the second input of which the reference voltage is fed from source 1 1. The voltages at the inputs of the comparison unit 13 are compared, the error signal is amplified, and from the output of the block 13 the comparison is fed to the second adjustable input of the adjustable amplifier 12, changing its transmission coefficient and, accordingly, the voltage on the active electrode with a frequency f of the negative feedback control circuit tension The feedback works in such a way that the voltage amplitude on the load reference resistance is kept constant during the procedure, which simultaneously means that a current with a constant frequency f will flow through the patient during the procedure. The amplitude of this current can be adjusted by changing the magnitude of the reference voltage of the source 11 supplied to the second input of the comparison unit 13.

From the output of the frequency control unit 8, the control input of the tunable generator 3 receives the control voltage, changing its frequency within a small range (10), and it becomes possible to change the output signal frequency within 992 il Hz. The control unit 8 allows to ensure this change both in manual mode and in automatic mode, by setting the frequency of change and its value. By changing the amplitude of the signal at the output of block 10, it is possible to smoothly change the signal of a stable frequency of 992 Hz within i Hz. In this case, the frequency stability will be determined by the frequency stability of the crystal oscillator 3, and the tuning range - by dynamically changing the frequency of the crystal oscillator 3.

1000 kHz and f. 1024 kHz or multiples of them.

The frequency shaping unit 1 operates as follows. The signal with a frequency of fi 1000 kHz from the output of the crystal oscillator 19 is sent to the input of a 21 frequency divider with a division factor K 10 and from its output with that fj 100 kHz is fed to the input of a balanced mixer 22, to the second input of which voltage is applied with a frequency of 1024 kHz output tunable quartz oscillator 20.

15 Signals with frequencies of 100 and 1024 kHz are fed through balanced mixer 22 to the input of filter 23, where a signal with frequency fx is extracted

1124 kHz,

20

which then goes to the input of the balanced mixer 24, to the second input of which a signal is received with a frequency f,) 1000 kHz. At the output of the balanced mixer 24, a differential frequency signal of 124 kHz is extracted by filter 18 and further enters frequency divider 6 input with a division factor (using frequencies of 1000 and 1024 kHz quartz oscillators) K-125, and a signal is generated at its output

30 With a frequency of 992 Hz. The control input of the tunable crystal oscillator 20 receives the control voltage from the output of the frequency control unit 8, when changing the frequency of 1024000 Hz at 125 Hz of the tunable crystal oscillator 20, the frequency change of f 992 Hz will be ± 1 Hz.

35

The automatic control of the frequency 40 is carried out by applying to the control input a voltage that varies with a given frequency in predetermined lines. The frequency deviation of 2048 kHz is chosen to be equal to ± 300 Hz, which corresponds to a change in the frequency of 992 Hz over t Hz. In the automatic mode, the deviation rate can be changed within (0.1-100) Hz, the deviation can also vary within (0.1-1) Hz. The stability of quartz oscillators without the use of special measures (without thermostatting) is no worse than 10, which corresponds to the stability

Using block 1 of generating gg output with a frequency of 992 Hz

the reference frequency of FIG. 2 also allows a frequency of 992 Hz to be obtained using common quartz resonators with a frequency f

no worse than 10. Quartz oscillators are the reference sources of absolute frequency values, i.e. adjusted and graduated devices

with signal with frequency fx

1124 kHz,

992 Hz output

no worse than 10. Quartz oscillators are the reference sources of absolute frequency values, i.e. adjusted and graduated device

5li3

there is no need for a cocktail in the future. Often tilt the output signal.

Claims (3)

Claim 1, A device for reflexotherapy, containing an active and passive spectrode, a post-connected United frequency-response unit, the first frequency divider, a switch, an adder and a functional transducer, characterized in that, in order to simplify and reduce the time of the procedure, you have to enter Frequency control unit, connected to the input of the unit for molding the reference iac-dot, adjustable amplifier, power supply and between the active electrode and the output of the functional transform unit: - warm up comparison, etatone comp.:; reproduction and detector; ..: a passive electrode and a source voltage reference connected to the first input of the comparison unit, the output of which is connected to the second input of the adjustable amplifier, and the second input to the output of the detector. 2. The device according to the clause, about tl and h and fi m e e s there, that, with del about the stabilization, - the frequency of frequency is affected, in neg-i the unit of formation of the reference frequency .2 46 holds a post-coupled tunable crystal oscillator, a second frequency divider, a first balanced mixer and a first filter,. the output of which is connected to the input of the first frequency divider, and the second input of the peon balance mixer is connected to the output of a tunable crystal oscillator, the input of which is the input of the reference frequency shaping unit. 3. The device according to any one of the preceding paragraphs, so that, in order to stabilize the frequency and decrease the frequency range of the action, the reference frequency shaping unit contains a series-connected crystal oscillator, frequency divider, first balanced mixer, the first filter is the second balanced mixer, the second filter, the output of which is the output of the frequency shaping unit, as well as a tunable crystal oscillator, whose input is the input of the frequency shaping unit, and the output is connected to the second input of the first second balanced mixer in the mount entry rtooo claim balanced mixer coupled) with Vokodom quartz oscillator.