SU1648499A1 - Electrostimulator - Google Patents

Abstract

The invention relates to devices for electrical stimulation of pulsed currents of muscles, organs and tissues and can be used in orthopedics for the treatment of various forms of scoliolytic disease and other orthopedic and trauma diseases of the musculoskeletal system, as well as other types of pathology requiring the use of an electrostimulator with software change parameters. The purpose of the invention is to simplify and expand the scope of application of the stimulator. The stimulator contains a master oscillator 1 pulses, a divider 2 frequencies, a decoder 3, a switch 4, a phase inverter 5, distributors b and 7 pulses, a voltage multiplier 8, a storage capacitor 9, amplifiers 10-13 channels with a stable controlled output current. Formation of the modulation law on the switch, phase inverter, decoder and pulse distributor, common to all channels, simplifies the stimulator circuit. The introduction of separate adjustments and stabilization of the load current for each channel increases the applicability of the stimulator to different muscle groups and eliminates the influence of the patient’s contact and skin condition on the operation of the device. The addition of a voltage multiplier and a storage capacitor to the device allows the stimulator to be performed with a long-lasting stimulus. 4 il. z fe

Description

The invention relates to medical technology, and has to devices for electrical stimulation by pulsed currents of muscles, organs and tissues, and can be used in orthopedics for the treatment of various forms of scoliolytic disease and other orthopedic and trauma diseases of the musculoskeletal system, as well as other types of pathology requiring the use of an electrostimulator with programmed parameter changes.

The purpose of the invention is to simplify and expand the scope of application of the stimulator.

1 shows the proposed electrostimulator.

The electrostimulator contains a master pulse generator 1, a divider 2 frequencies, a decoder 3, a switch 4, a phase inverter 5, distributors 6 and 7 pulses, an 8-voltage multiplier, a storage capacitor 9, amplifiers 10-13 channels with a stable adjustable output current.

The electrostimulator operates as follows.

The master oscillator 1 generates a sequence of high frequency pulses that arrive at the input of the frequency divider 2, and from the output of the frequency divider 2, the signals arrive at the inputs of the decoder 3, which generates a signal that controls the duration of the stimulation pulses. The switch 4 receives three signals of different frequencies from the outputs of the divider 2. At the output of the switch 4, a frequency is generated

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but the modulated signal, the modulation frequency is determined by the low-frequency signal from the output of divider 2, i.e. the output signal is packets of equal duration, filled alternately with the pulses of the first and second high-frequency components. The frequency-modulated signal is fed to the input of the phase inverter 5, the output of which produces two signals opposite in phase to the two pulse distributors 6 and 7. The pulse distributors 6 and 7 distribute the phase inverter signals through the two signals the low-frequency output of the divider 2. The duration of the stimulation pulse is determined by the signal from the decoder 3.

The control inputs of the amplifiers 10-13 receive signals from the pulse distributors 6 and 7.

Figure 2 shows the stimulus signals. ra in the following points of the circuit: a is the output signal of the master pulse generator; b - signal from the first output of the frequency divider; c, d - signals from the second and third outputs of the frequency divider; d - signal from the fourth output of the frequency divider; e- signal at the switch output.

On fig.Z shows the signals at the inputs and outputs of the valves; a - signal at the gate input (output of the decoder); b - at the first control input; c - at the second control input; g, d, e, g - signals on the first, second, third and fourth outputs of the distributors.

At the outputs of the distributors, the control signals of the amplifiers are formed, the durations of the pulse code pulses are determined by the duration of the signal from the decoder output, and the period T and the temporal shift bdv are determined by the signals at the first and second control inputs of the distributors.

Figure 4 shows the current signal at the output of one of the channels of the stimulator. It is possible to use the proposed device both for the treatment of severe patients, TEIK and in improving, preventive medicine for the fight against hypodiamia.

Ph o rmul a and z o b rete n i

An electrostimulator containing a master pulse generator, a pulse distributor, amplifiers in each channel, characterized in that

simplify and expand the field of application of the device by independently adjusting the current through the channels; a switch, a phase inverter, a decoder, a frequency divider, a voltage multiplier are introduced into it

and a storage capacitor, with the output of the master pulse generator connected to the input of the frequency divider, the first output of the frequency divider connected to the input of a voltage multiplier, to the output of which

the storage capacitance with which the power amplifiers are supplied is connected, the second and third outputs of the frequency divider are connected to the switch inputs, to the control input of the switch by connecting the fourth output of the frequency divider, the switch output is connected to the inverter input, the direct and inverse outputs of which are connected to the distributor inputs pulses, extra outputs

the frequency divider is connected to the inputs of the decoder, the output of which is connected to the gate inputs of the pulse distributors, other outputs of the frequency divider are connected to the control inputs of the distributors, and the pairs of outputs of the distributors are connected to the control inputs of the channel amplifiers, the outputs of which are the outputs of the stimulator.

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Claims (1)

Claim An electrical stimulator containing a master pulse generator, a pulse distributor, amplifiers in each channel, characterized in that, in order to simplify and expand the scope of the device by independently adjusting the current through the channels, a switch, a phase inverter, a decoder, a frequency divider, and a voltage multiplier are introduced into it storage capacity, and the output of the master pulse generator is connected to the input of the frequency divider, the first output of the frequency divider is connected to the input of the voltage multiplier, to the output of which the storage capacitance with which the power amplifiers are supplied is dined, the second and third outputs of the frequency divider are connected to the inputs of the switch, the fourth output of the frequency divider is connected to the control input of the switch, the output of the switch is connected to the input of the phase inverter, the direct and inverse outputs of which are connected to the inputs of the pulse distributors, additional outputs of the frequency divider are connected to the inputs of the decoder. the output of which is connected to the gate inputs of the pulse distributors, other outputs of the frequency divider are connected to the control inputs of the distributors, while the pairs of outputs of the distributors are connected to the control inputs of the channel amplifiers, the outputs of which are the outputs of the stimulator. and ΗΤΠΙΠΓΓΙΠΙΙΙΓ * * * ________________________________ ¹ tlplppa ··· __________________________ ^{J g} J -------- lttlsch1lshshsh1zhshzhshshshdd_ 1 ILJL. i ______ I -------- 1 —______ I --- .---------------------------------- ----------------1 --------------------------------- -Fig. 3 4 Compiled by V. Popov Editor S. Rekova Tehred M. Morgenthal Corrector L, Beskid, Order 1863 Circulation 449 Subscription VNIIIPI of the State Committee for Inventions and Discoveries at the State Committee for Science and Technology 113035, Moscow, Zh-35, Raushskaya nab., 4/5 Production and Publishing Plant Patent ”, Uzhgorod, 101 Gagarina St.