CN87209516U

CN87209516U - Therapeutic instrument for examining heart and brain trouble

Info

Publication number: CN87209516U
Application number: CN 87209516
Authority: CN
Inventors: 王志西; 梁惠英
Original assignee: HUAXING MEDICINE APPARATUS FACTORY SHIJIAZHUANG CITY; Huahang Electrical Appliance Co Of Shijiazhuang City
Current assignee: HUAXING MEDICINE APPARATUS FACTORY SHIJIAZHUANG CITY; Huahang Electrical Appliance Co Of Shijiazhuang City
Priority date: 1987-06-24
Filing date: 1987-06-24
Publication date: 1988-10-12

Abstract

The utility model belongs to a novel therapeutic instrument for examining heart and brain troubles, comprising a pulse generator with adjustable duty ratio constant frequencies, an output voltage regulator, a pulse output controlling circuit and an electronic timer cue circuit. Moreover, a novel output electrode with a constant contacting voltage and a constant contact area and an ac duplicate supplying power supply are adopted. The operation is simple, and the displaying of the output electrical parameters are accurate. The therapeutic instrument has a high diagnosis rate and good therapeutic effects of the regulation of body electric balance and the examination and the treatment of heart and brain functional diseases.

Description

Therapeutic instrument for examining heart and brain trouble

This utility model belongs to a kind of special electronic medical health equipment, particularly utilizes bulk electric field adjustment of treatment cardio cerebral function illness.

Up to the present, the heart and brain disease is still human health is threatened maximum sufferer.Therefore, inspection and the treatment to the heart and brain disease is still the problem that domestic and international medical circle is paid close attention to so far.A large amount of electron medical treatment device development of arising at the historic moment are also very rapid.The heart and brain of present domestic appearance check that therapeutic instrument is wherein simple in structure, and easy to use have a kind of of certain curative effect.It follows people's bulk electric field balance theory.It is lacked of proper care according to the body electric equilibrium and checks sufferer, and utilizes suitable particular low frequency electric current to remove microcirculation improvement, and the control agent electric field restores balance to reach the purpose of treatment.Especially it has higher diagnosis and better therapeutic effect to be applied to slight or early stage cardiovascular patient and brain functional disorder patient, is a kind of special electronic Medical Instruments that is easy to popularize.Yet this present quasi-instrument defective hinders its further promotion and application.Because of change in duty cycle easily causes electric burn, this has just limited its therapeutic effect to different patients and different illness in the first frequency parameter adjustment process.Though it two is that direct current supply mode power supply quality is good, the fault rate height has influenced normal use, and it three is that electrode structure is simple, and operation technique easily causes very big deviation, and brings great difficulty to user.It four is that the scope of human body resistance is very wide, and reading instument internal resistance error is difficult for grasp more greatly and treats electrical quantity accurately.Above technology can be with reference to utility model patent 86202740.

The purpose of this utility model is to provide a kind of electrode to press constantly, and the constant lower frequency of dutycycle is adjustable, and the new instrument that miscellaneous function is perfect is to implement diagnosis accurately and effectively treatment to all kinds of patients under the preceding topic that is implemented in accurate grasp instrument parameter.

Design crux of the present utility model is the electrical parameter that screens in the production process for many years according to the our factory and from the actual needs in user's bulk information.

Its basic structure will further specify in conjunction with the accompanying drawings.Wherein Fig. 1 is a basic structure block diagram of the present utility model:

Wherein 1 is supporting power supply;

2 are frequency adjustable joint and the constant pulse generator of dutycycle;

3 is output voltage regulator;

4 are pulse output control (demonstration) circuit, and wherein I is the output interface.

5 for pressing constant formula electrode;

6 are timing, demonstration, prompting auxiliary circuit.

Power supply 1 is the supplied by AC/DC electricity mode, to adapt to the needs under the different occasions.Frequency Adjustable pulse generator 2 produces the square wave of a 0.8～140HZ.Its dutycycle can be 15%～18%, but requires dutyfactor value to remain unchanged in the frequency mediation process, to guarantee parameter consistency and therapeutic effect.Pulse amplitude when output voltage regulator 2 guarantees treatment is adjustable continuously in 0～22 volt of scope.The effect of pulse output control circuit 4 is that the square wave shaping of pulser output is amplified, and there is the output current limiting element in generation to prevent when using alternating voltage because haphazard so cause output current to strengthen, guarantees patient's safety.The effect of auxiliary circuit 6 is to the demonstration of operator with output signal, can preset treatment time, and the time can be regulated in 5～15 minutes, can give the operator to remind with sound and optical signal after the time.Output electrode 5 adopts the structure of constant voltage, permanent contact area.Above general idea can make this utility model realize its goal of the invention.

What Fig. 2 was given is the electrical schematic diagram of an embodiment.As can be seen from Figure 2 supporting power supply 1 is realized switching by K switch 1.Alternating current power supply part is by transformator L, bridge rectifier P and three terminal regulator WY ₁, WY ₂Form, 24 volts and 12 volts of two-way D.C. regulated power supplies are provided.The constant frequency-adjustable pulse generator 2 of dutycycle cooperates resistance R by integrated package 555 ₄, R ₅, capacitor C ₄, C ₅, doubly-linked potentiometer W ₂, diode P ₁Overlap joint forms.Its frequency adjustment is by W ₂Realize.Because the doubly-linked potentiometer resistance has guaranteed that than constant dutycycle is constant in adjustment process.The pulse square wave that is produced directly passes through resistance R ₆Be loaded on the chopper in the pulse output control circuit 4.Chopper is actually a compound transistor (BG ₃, BG ₄) amplifier, after amplifying the rectangular pulse shaping, it is added on the anode socket in the output circuit.Because at audion BG ₄Colelctor electrode and base stage between designed diode P ₂, P ₃And resistance R ₁₆, output current can be controlled at below the 30mA, play the current-limiting protection effect.In case patient's safety occurs protecting effectively when similar bridge circuit P punctures.Output voltage regulator 3 by a compound transistor direct current amplifier (BG1, BG2) and resistance R ₁, R ₂R ₃Be barricaded as, by potentiometer W ₁Realize Adjustable Output Voltage.Output voltage passes through ammeter

Receive the positive pole of output electrode.Its output voltage is by voltmeter

Show.The effect of shunt resistance R9 is to enlarge instrument range.

What Fig. 3 provided is an aid prompting circuit.It is formed by two 555 slice, thin piece overlap joints.By potentiometer W ₃Realize adjustable timing in 5～15 minutes.K switch ₄Closed back light emitting diode D ₁Show the treatment beginning, timing arrives the back by D ₂Show and send prompting by buzzer F simultaneously.

Because design of the present utility model adopts supplied by AC/DC electricity, the extensive safety of frequency adjustable under dutycycle is constant thereby application scenario.To various types of diseases and patient, use very convenient.

Another characteristics of the present utility model are to have adopted constant voltage, the output electrode 5 of permanent contact area.What Fig. 4 provided is a kind of design diagram of kind electrode.By shell 7, constant force spring 8, button 9, battery lead plate 10,

lead

11,12 compositions of spacing card.The infra end plug advances an amount of moistening absorbent cotton 13 during use, presses button after electrode is placed on therapentic part, because the spacing button of shell can only be pressed definite part, has so promptly guaranteed that by the constant force spring the downward pressure of electrode is constant.Area also is constant, thereby causes the error of contact resistance when having avoided using general electrode because of operator's maneuver weight, and this error brings very large deviation often for the meter reading in the treatment.

Because this utility model Aided Design is perfect, electrical quantity is selected rationally, thereby not only easy to operate in application, and therapeutic effect is obvious.Because it is accurately reasonable to adopt perseverance to press electrode institute test parameter, high conformity is convenient to constantly sum up and improve treatment level, really is an ideal new-type inspection therapeutic equipments.

Claims

1, a kind of cardiac and cerebral diseases of low-frequency electric pulse control agent electric equilibrium that utilizes is checked therapeutic instrument, has power pack 1, low-frequency pulse producer 2, output voltage regulator 3, pulse output control circuit 4 and output electrode 5.It is characterized in that:

A. low-frequency pulse producer 2 is that a frequency can be regulated, and the pulse generating circuit that dutycycle remains unchanged in adjustment process specifically can be by integrated package 555, resistance R ₄, R ₅, capacitor C ₄, C ₅, doubly-linked potentiometer W ₂With diode P ₁Overlap joint forms, frequency-tuning range 0.8～140H _ZDutycycle 15%～18%,

B. output voltage regulator 3 is shaping amplification circuits, specifically can be by multiple tube amplifying circuit BG ₁, BC ₂, resistance R ₁, R ₂, R ₃With adjustable potentiometer W ₁Form,

C. pulse output control circuit 4 is by a multiple tube amplifying circuit (BG for the constant current protection ₃, BG ₄), the output measuring instrument

,

, permutator K ₂Constitute with output socket I,

D. the outfan of low-frequency pulse producer 2 is by the coupling resistance R ₆With the multiple tube amplifying circuit (BG in the impulse output circuit 4 ₃, BG ₄) input links to each other, low frequency pulse signal after amplifying shaping by permutator K ₂The contact be added on the output socket I, the outfan of output voltage regulation circuit passes through ammeter Be added in the another location of socket I.

2,, it is characterized in that supporting power supply can be the two supporting power supplys of alternating current-direct current, uses the alternating current power supply epoch that 24 volts and 12 volts of two kinds of mu balanced circuits are arranged according to the said inspection therapeutic instrument of claim 1.

3, according to the said inspection therapeutic instrument of claim 1, it is characterized in that the electrode 5 that is adopted is constant electrode for contact area and contact pressure, concrete structure comprises shell 7, constant force spring 8, knob 9, battery lead plate 10, lead 11, spacing card 12 is cooperated by spacing card and spring and to realize constant voltage, during use plug at electrode 10 times an amount of moistening cotton 13 to guarantee permanent area.