CN2047964U - Medical apparatus applying stochastic current - Google Patents

Abstract

The utility model relates to a medical apparatus applying stochastic current, and thermal noise generated by utilizing the characteristics of the internal structure of transistors is used as a random signal source. The thermal noise is 16 to 4000 Hz sine wave of which the amplitudes and the intervals are all irregular, the thermal noise is amplified and inputted into a human body to alleviate pain and improve the curative effect. The frequency and the amplitude are fixed on one kind or changed into many kinds in the existing low and mid-frequency current therapy, the adaptability is easily generated for a patient, the curative effect is influenced, and the situation is changed by the utility model. The total effective rate is 95.68% according to the curative effect of 301 patients.

Description

Medical apparatus applying stochastic current

This utility model relates to a kind of naturopathy device--current therapy apparatus at random.

The pulse therapy instrument was a lot of in the past, as a galvanic electricity, disturb that electricity, sinusoidal modulating medium-frequency, audio-frequency electric etc. are low, electrotherapy all is artificial to be fixed on a kind of or several frequencies of conversion and amplitude are treated, thereby patient is easy to generate physiological adaption, the disadvantage that causes curative effect to be under some influence.

For addressing this problem, common way is in patient's seance, conversion one or two kind of frequency, and as the treatment of galvanic electricity, condensation wave 3 minutes, dilatational wave 5 minutes and rose ripple 5 minutes; Sinusoidal modulating medium-frequency electrotherapy, can in first 2 seconds, give a kind of frequency (50Hz), and give a kind of frequency (100Hz) in 2 seconds at second, in 20 minutes seance, carry out replacing of two kinds of frequencies like this, do not change but still break away from clocklike, therefore, patient still can produce adaptability.

The purpose of this utility model is will provide a kind of can eliminate in the present physical therapy used one or the current therapy apparatus at random of the patient compliance that treatment causes of two kind of frequency change fully.

The purpose of this utility model is achieved in that the thermal noise that utilizes the transistor internal structural characteristic to produce, and this noise is 16～4000Hz sine wave of a kind of amplitude and equal at interval none set pattern rule, as the signal source of this instrument, and is amplified the input human body.This electric current is suddenly big or suddenly small in time, rises one after another, and constantly changes, and therefore, patient can not produce adaptability in treatment; Overcome low in the past, electric current of intermediate frequency fully and in treatment, produced adaptive disadvantage, thereby reached pain relieving and improve the purpose of curative effect.

Concrete structure of the present utility model and former reason accompanying drawing are given:

Fig. 1. be the block diagram of this instrument.

Fig. 2. be the electrical schematic diagram of this instrument.

Fig. 3. be the panel figure of this instrument.

(1) display lamp (2) electric current display list (3) on and off switch (4) control handle (5) output socket.

Fig. 2 is the electrical schematic diagram according to the thermal noise signal source device that the utility model proposes.

The details and the working condition of the concrete device that the utility model proposes are described below in conjunction with Fig. 2.

This instrument comprises a thermal noise signal source (BG6), resistance capacity coupled amplifier (BG7), and emitter follower (BG8), preamplifier (BG9), power amplifier (BG10,11) and transistor 12V regulated power supply are formed.

The BG6 base stage disconnects among Fig. 2, and emitter stage connects positive source, and colelctor electrode connects negative pole, and after dividing potential drop is tied in two of transistor inside, emitter junction will be subjected to forward bias, and collector junction will be subjected to reverse biased, so collector junction produces leakage current I _CBOBecause there is electric current to pass through, the place has produced thermal noise in transistor inside, shot noise and flicker noise, these noises produce 16～4000Hz sine wave of a kind of amplitude and equal at interval none set pattern rule just, as the signal source of current therapy apparatus at random, this signal forms output signal voltage by collector resistance R8, be added on the base stage of resistance capacity coupled amplifier BG7 through coupling capacitance C6 again, signal after BG7 amplifies is added to by C7 between the base stage and colelctor electrode of emitter follower BG8, and output signal is to take out between the emitter stage of BG8 and colelctor electrode, through C9, W and C10 are added to signal on the preamplifier BG9 base stage, BG9 amplifies the signal paraphase and promotion power-amplifier stage BG10,11, output signal reaches therapeutic purposes through indicating circuit input human body.Since evident in efficacy, have no side effect, welcome by patient, treated 2191 patients.

Claims (1)

1. A kind of current therapy apparatus at random has 30 * 20 * 15Cm ³Casing, there is the electric current display list on the right side on the front panel, upper left side has power supply indicator, there is output socket the lower-left, the output control handle is arranged in down, there is on and off switch the bottom right.It is characterized in that: the transistor BG6 of open base is the thermal noise signal source, and the thermal noise signal passes through resistance capacity coupled amplifier successively, emitter follower, and preamplifier is exported behind the power amplifier; This utility model also has a 12V transistor voltage regulator that power supply is provided for above-mentioned parts.

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