CN2052668U - Treatment instrument for angina pectoris - Google Patents

Abstract

The utility model discloses a treatment instrument for angina pectoris, which is an electric medical instrument for treating and preventing coronary heart disease and angina pectoris. Under the guidance of meridian doctrine of traditional medicine in China, the utility model is made by adopting the modern electronic technology through the scientific argumentation of modern medical technology. The treatment instrument for angina pectoris has characters and innovation on circuit design. Electrical pulse generating particular frequency and wave shape is produced by the treatment instrument for angina pectoris, the electrical pulse can act on positive sockets of human body to expand the coronary artery, improve the functions of shrinkage and relaxation of heart, reduce the oxygen consumption (about 24.3%), and effectively treat and prevent the occurrence of angina pectoris, and furthermore, the utility model has the advantages that the time producing effects is rapid (in generally less than half of a minute), the function is lasting, and the traumatic occlusion and drug side effect are not existed. The curative ratio of clinical usage can achieve 90%.

Description

Treatment instrument for angina pectoris

This utility model is a kind of anginal electronic medical instruments for the treatment of and prevent.

The treatment angina pectoris mainly adopts medicines such as nitroglycerin at present, has some pair effect when growing (5-10 minute) treatment because of its onset time, can produce drug resistance after taking for a long time, and other Therapeutic Method also has many weak points.

The purpose of this utility model is to provide a kind of wound simple in structure, easy to use, rapid-action, no, no medicine to pay the electronic medical instruments of effect, reach treatment and prevention angina pectoris by stimulation, for the cardiac removes painful purpose to human body Zhiyang cave.

The angina pectoris treatment instrument is characterized in that as utility model: it by the cmos gate circuit constitute agitator and monostable circuit, one-level power amplification circuit, overvoltage protection and indicating circuit, current foldback circuit, and output electrode form.Agitator output square wave triggers the pulse that monostable circuit obtains certain width behind differential, after power amplification, can obtain the stable characteristic frequency and the electric pulse of waveform from the outfan of transformator.

It compared with the prior art, for example: electronics body building and weight reducing device (patent No. 87250202) has adopted BG1, BG2, three grades of power amplifiers of BG3, but its output and little does not only have the overvoltage protection but also do not have the overcurrent protection.The novel designs that this therapeutic instrument adopts has overcome above-mentioned disadvantage, and cost decreases.

The design's power amplification circuit and overvoltage, current foldback circuit and indicating circuit are combined closely.Power amplification circuit is only used a power discharging transistor.Overvoltage protection is become with the light emitting diode string joint group by a resistance with indicating circuit.This resistance is in order to reducing the backward voltage that power tube bears, and the high-amplitude of restriction output voltage.Current foldback circuit is made up of a resistance, and it is connected with the output potential device, makes the output pulse reach sufficient intensity and prevents the excessive patient of burning of electric current again.

The feature of this therapeutic instrument also is: two output electrodes vary in size, and master point--the output electrode in Zhiyang cave is less in connection, can obtain than high current density, and it is more accurate to locate, and help improving the stimulation curative effect.Another electrode area is bigger, places under the xiphoid-process of front than sensitive part, can reduce prickling sensation.Master, adjunct acupuncture points adopt the output electrode that varies in size during treatment, are not indicated in other therapeutic equipments as yet.

This angina pectoris therapeutic instrument, the feature of output electric pulse is: frequency is the bidirectional waveform of 50-300Hz.Its frequency and waveform are the relations according to physiology's stimulus threshold, and elimination polarization and clinical experiment require selected.Therefore we can say that this utility model is the product that scientific research and clinical practice, electronic technology and experimental medicine combine.Advantage of the present utility model is:

(1) through careful scientific experiments and clinical verification, curative effect is sure.The 266th hospital of PLA (obtained 1989 army in scientific and technological progress second prize) in the research work of " push Zhiyang cave treatment angina pectoris ", adopt advanced meanses such as coronarography, color Doppler kinetocardiogram to make a large amount of controlled trials, proof: use this instrument to stimulate human body Zhiyang cave can make left and right sides main coronary artery in the time of two, all obtain expansion in mutually, can improve heart contraction and diastolic function, increase left chamber compliance, reduce oxygen consumption (about 24.3%), thereby can treat and prevent angina pectoris effectively.

Two sections cure 200 examples through clinical use in the 266th hospital of PLA, and obvious effective rate reaches 90 percent.

(2) lasting, non-invasive, no medicine are paid effect when treatment rapid-action (generally less than half a minute), effect.

(3) little, the power consumptive province of this instrument volume, simple in structure, cost is low, easy to use, patient can carry, treat at any time.

Below in conjunction with electrical schematic diagram one, the embodiment of this utility model is described.

Among the figure: NAND gate 1,2 and R1, C1 form the multiple-harmonic agitator; NAND gate 3,4 and R2, R3, C3 form monostable circuit; R4, C2 are peaker; BG1 and transformator T1 constitute the power amplifier level, the required electric pulse of output treatment; R5 and LED are overvoltage crowbar, and LED double as work indication is used.R6 protects as output overcurrent, can prevent the big electric current patient that burns.In the output electrode, the area that connects the master point electrode is about half of another electrode.

Claims (4)

1, a kind of electronic medical instruments for the treatment of and preventing angina pectoris to use.Of the present utility model being characterised in that: the agitator that it is made of the cmos gate circuit and monostable circuit, one-level power amplification circuit, overvoltage protection and indicating circuit, current foldback circuit, and output electrode form.Can obtain the stable characteristic frequency and the electric pulse of waveform from the outfan of transformator.

2, angina pectoris treatment instrument according to claim 1 is characterized in that: power amplification circuit is only used a power discharging transistor; Overvoltage protection is become with the light emitting diode string joint group by a resistance with indicating circuit; Current foldback circuit is made up of a resistance.

3, angina pectoris treatment instrument according to claim 1 is characterized in that: two output electrodes vary in size, and master point--the output electrode in Zhiyang cave is less in connection, and another electrode area is bigger.

4, angina pectoris treatment instrument output electric pulse according to claim 1, it is characterized in that: frequency is the bidirectional waveform of 50-300Hz.

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