CN201551391U

CN201551391U - Microwave therapy apparatus

Info

Publication number: CN201551391U
Application number: CN2009202771446U
Authority: CN
Inventors: 贺新民; 唐守峰
Original assignee: China University of Mining and Technology CUMT
Current assignee: China University of Mining and Technology CUMT
Priority date: 2009-12-01
Filing date: 2009-12-01
Publication date: 2010-08-18
Anticipated expiration: 2019-12-01

Abstract

The utility model relates to a microwave therapy apparatus suitable for microwave treatment for the human body. A controlling circuit adopts a single-chip microcomputer circuit as the core, an input circuit is extended with a foot switch and a keyboard circuit, an output circuit is extended with an LED digit display and an LED indicator lamp circuit, and a microwave generator can be controlled through a PWM controller, an isolating transformer and other circuits, and the microwave therapy apparatus integrates the functions of self-inspection, parameter setting, measuring, memorizing, display and control into a whole and has good human-computer interface. The miniature high-frequency switching power supply is adopted, therefore, the weight is light, the efficiency is high, and the electric energy as well as the nonferrous metal is saved; the treatment scheme can be preset, the microwave therapy apparatus can execute the automatic mode according to the established procedure; and the microwave therapy apparatus also has the advantages of simple operation, good use effect and high practicability.

Description

A kind of microwave therapy apparatus

Technical field

This utility model relates to a kind of electronic medical equipment, and especially a kind of microwave that human body is treated that is applicable to is treated instrument.

Background technology

The microwave therapy apparatus that uses in that sell in the market and the hospital generally has dual mode, a kind of mode that adopts Industrial Frequency Transformer to boost, and volume is big, heaviness, efficient is low, the waste electric power energy, the waste non-ferrous metal, cost is higher.The another kind of Digital Circuit Control on a small scale that adopts, circuit is loaded down with trivial details, does not possess intelligentized function.

Summary of the invention

The purpose of this utility model is the weak point that overcomes in the technology, provides a kind of and has self-checking function, has good man machine interface, easy operating, stable performance, do not contain the microwave therapy apparatus of Industrial Frequency Transformer.

The technical solution of the utility model is: core circuit is a single chip circuit, the core of system is a slice single-chip microcomputer, input is connected to keyboard circuit and foot switch, the outfan of single chip circuit is by behind PWM controller-isolating transformer-half-bridge driver-high frequency transformer, the controlled microwave generator, the single chip circuit outfan also is connected with buzzer, by drive circuit, is connected with LED nixie display and light-emitting diode display.The used single-chip microcomputer of single chip circuit is the PIC16F72 type, and keyboard has 4-12 only, and used LED charactron is 3-8, and light-emitting diode display is 8.

Beneficial effect: adopt microelectric technique in conjunction with the microcontroller technology, utilize single-chip microcomputer, obtain people's order, the microwave way of output (treatment, physical therapy, pulse physical therapy, treatment power and treatment time is set by foot switch and keyboard.By driving electricity shows treatment on the LED digitron display screen power and treatment time, indication working method and state on LED light.The pulse signal of the signal controlling PWM controller output different duty of single-chip microcomputer output, through the conducting of isolating transformer control half-bridge driver with close, low voltage electric impulse is added to the input of high frequency transformer, high frequency transformer is raised to voltage more than the 2KV, the reuse high voltage rectifier is made into unidirectional current, be added on the microwave generator, the microwave of generation is used for the treatment of sufferer through microwave cable output.In microwave output, by the output sample circuit output is detected, measurement result is sent into single-chip microcomputer, utilize computer software that the complete machine duty is analyzed, as abnormal conditions occur, stop microwave output immediately, the while sound and light alarm, buzzer is the sound-producing device of reporting to the police, and the LED digitron display screen shows fault type, for using and the maintainer reference.

Description of drawings

Fig. 1 is a schematic block circuit diagram of the present utility model;

Fig. 2 is front control plate circuit theory diagrams of the present utility model;

Fig. 3 is high drive plate circuit theory diagrams of the present utility model.

Among the figure: 1-single-chip minimum system, 2-foot switch, each function button of 3-, the 4-drive circuit, 5-LED nixie display, 6-LED display lamp, the 7-PWM controller, the 8-isolating transformer, 9-half-bridge driver, 10-high frequency transformer, the 11-high-voltage rectifying, the 12-microwave generator, 13-exports sampling, the 14-buzzer.

The specific embodiment

Below in conjunction with accompanying drawing an embodiment of the present utility model is described further:

Microwave therapy apparatus of the present utility model, its core circuit are single chip circuit, and crystal oscillator, reset circuit are formed single-chip minimum system 1 together.By the scanning monitoring to each function button 3 and foot switch 2, the order of obtaining the people is provided with the microwave way of output (treatment, physical therapy, pulse physical therapy), treatment power and treatment time.On LED digitron display screen 5, show the power and the treatment time for the treatment of by drive circuit 4, indication working method and state on LED light 6.The pulse signal of the signal controlling PWM controller 7 output different duty of single-chip microcomputer output, through the conducting of isolating transformer 8 control half-bridge drivers 9 with close, low voltage electric impulse is added to the input of high frequency transformer 10, high frequency transformer 10 is raised to voltage more than the 2KV, reuse high voltage rectifier 11 is made into unidirectional current, be added on the microwave generator 12, the microwave of generation is used for the treatment of sufferer through microwave cable output.In microwave output, detect by 13 pairs of outputs of output sample circuit, measurement result is sent into single-chip microcomputer, utilize computer software that the complete machine duty is analyzed, as abnormal conditions occur, stop microwave output immediately, the while sound and light alarm, buzzer 14 is the sound-producing devices of reporting to the police, and LED digitron display screen 5 shows fault type, for using and the maintainer reference.

All elements are welded on two printed circuit board by item, and the program that weaves is downloaded in the front control plate U3 single-chip microcomputer, finish the making of main circuit board.Front control plate is fixed on the front panel position of therapeutic instrument, the high drive plate is fixed in the cabinet, the PVC facial film is sticked on the front panel.Microwave generator is fixed in the cabinet, power supply is introduced received high drive plate J4 place.

Front control plate J2 is connected with 10 core flat cables with high drive plate J1.

The input of microwave generator is connected to the J9 place of high drive plate.

The lead-out terminal of microwave generator is guided to the cabinet outside by the cabinet opening, use for treatment.

Blow the temperature when reducing its work facing to microwave generator with a mini-fan.

Power line and microwave radio output cable (comprise physical therapy or treat two kinds) are inserted therapeutic instrument reliably, and attention cable plug and therapeutic instrument socket want clockwise direction to tighten, in order to avoid heating reduces microwave efficient.Foot switch connecting line plug is inserted in the corresponding jack in therapeutic instrument back.

Turn on the power switch, therapeutic instrument is defaulted as therapeutic state, and the treatment lamp is bright, and power is 000 watt, and treatment time is 00 minute and 00 second.

Under this therapeutic modality, by " P+ " or " P-" key, regulate the output microwave power that presets, its numerical value shows on the LED charactron of " power indication ", reaches required magnitude of power.By " T+ " or " T-" key, regulate required treatment time then, it is measurement unit that the time of therapeutic state was regulated with " second ".

Choose the position, probe is placed on therapentic part, depress the treatment foot switch then, " work " lamp is bright, and " time indication " charactron begins countdown, can treat.Attention:

The back buzzer that makes zero sounded, pointed out this regularly to treat end with the countdown second treatment time.Default power is constant, and treatment time is recovered initial value, and " work " lamp goes out, and can proceed treatment next time.If unclamp foot switch midway in treatment, microwave power also will stop output, and default power is constant, and treatment time is recovered initial value, and buzzer does not ring.

Should be earlier during treatment will treatment probe contact treatment position, the reuse foot switch, after treatment finishes, should first loose foot switch, will treat pops one's head in again leaves therapentic part.

In the therapeutic process, adjust power and time, can regulate by " P+ " " P-" " T+ " " T-" key as need.

Generally speaking,, can repeat the 4th operation, reach till the promising result according to the therapentic part state of an illness.

Peak power output is 100 watts during treatment.

The physical therapy mode: the physical therapy probe bracket is inserted in the bracket holes, physical therapy probe (circular radiator) is fixed on the support, select correct position, with physical therapy alignment probe disease sites, distance is advisable for 0.5～1 centimetre, then fixed screw is tightened.

Opening power, buzzer clicks " physical therapy " key after ringing, enter " physical therapy state ", " physical therapy lamp " is bright at this moment, " time-out " lamp is bright, by " P+ " or " P-" key, regulates the output microwave power that presets, its numerical value shows on the LED charactron of " power indication ", reaches required magnitude of power.By " T+ " or " T-" key, regulate required treatment time then, it is measurement unit that the time of therapeutic state is regulated with " branch ".

Press " opening/stop " key, " time-out " lamp goes out, and " work " lamp is bright, and " time indication " charactron begins countdown, gets final product physical therapy.Attention: it forms single-chip minimum system with crystal oscillator, reset circuit.A kind of microwave therapy apparatus, when it is characterized in that core circuit is the physical therapy end, microwave stops output, and buzzer is ringing prompting, and it is constant to preset power, and treatment time is recovered initial value.In therapeutic process, suspend as need, press " opening/stop " key and get final product.

In the physical therapy process, improper as radiant power, can in the physical therapy process, press " P+ " or " P-" key and regulate, need not shut down.Peak power output is 40 watts during physical therapy, and maximum time is 99 minutes.

Directly enter therapeutic state at physical therapy state such as need, press " treatment " key and get final product.

At some common diseases, be provided with the treatment prescription that 3 experts recommend, they are after choosing through button, and system can automatically perform under the control of Single Chip Microcomputer (SCM) program.They are respectively: prescription one is 50W treatment 15 seconds, and prescription two is 26W physical therapy 20 minutes, writes out a prescription three to add 28W pulse physical therapy 10 minutes in 10 minutes for the 26W physical therapy.

Under stopped status, by " prescription one ", 50W treatment 15 seconds are set automatically, control start and stop with foot switch.Automatically performed the 26W physical therapy 20 minutes by " prescription two ".Automatically perform the 26W physical therapy by " prescription three " and added 28W pulse physical therapy 10 minutes in 10 minutes.

Claims

1. microwave therapy apparatus, it is characterized in that core circuit is a single chip circuit, input is connected to keyboard circuit and foot switch, the outfan of single chip circuit is by behind PWM controller-isolating transformer-half-bridge driver-high frequency transformer, the controlled microwave generator, the single chip circuit outfan also is connected with buzzer, by drive circuit, is connected with LED nixie display and light-emitting diode display.

2. microwave therapy apparatus according to claim 1 is characterized in that: the used single-chip microcomputer of described single chip circuit is the PIC16F72 type, and keyboard has 4-12 only, and used LED charactron is 3-8, and light-emitting diode display is 8.