CN202512387U

CN202512387U - Medical physical therapy breathing machine controller

Info

Publication number: CN202512387U
Application number: CN201220077303XU
Authority: CN
Inventors: 叶春; 高潮彬; 龚福智
Original assignee: CHENGDU ZHANGWO MOBILE INFORMATION TECHNOLOGY Co Ltd
Current assignee: CHENGDU ZHANGWO MOBILE INFORMATION TECHNOLOGY Co Ltd
Priority date: 2012-03-05
Filing date: 2012-03-05
Publication date: 2012-10-31
Anticipated expiration: 2022-03-05

Abstract

The utility model discloses a medical physical therapy breathing machine controller, which comprises an alternating current power supply, a power circuit, an astable oscillator, a control circuit and a motor of a physiotherapy breathing machine. The astable oscillator comprises a time base integrated circuit, a first capacitor, a second capacitor, a first resistor, a second resistor and a potentiometer. The control circuit comprises a third resistor, a fourth resistor, a fifth resistor, a first transistor, a second transistor, a diode and a relay. After being electrified, the signal output end of the time base integrated circuit outputs oscillation pulse signals, the relay and the motor work in an interval mode. When the signal output end of the time base integrated circuit outputs high level signals, the relay lose electricity and is released, the motor is powered off and stops working. The medical physical therapy breathing machine controller is capable of automatically starting the motor to operate when a patient inhales and automatically shutting off the working power supply of the motor when the patient exhales, thereby being energy-saving and practical, simple in circuit, stable in performance and convenient to install and debug.

Description

Medical physiotherapeutic lung ventilator controller

Technical field

The utility model relates to a kind of medical physiotherapeutic lung ventilator controller, relates in particular to a kind of medical physiotherapeutic lung ventilator controller that when the patient is air-breathing, starts automatically, when exhaling, closes motor automatically.

Background technology

In existing, the physiotherapy lung ventilator of the clinical use of infirmary is continual to patient's nasal cavity air feed, this does not meet the breathing rule that should stop the nasal cavity air feed between respiratory period, the patient can not feel well should.Existing medical ventilator controller is from the shortcoming in circuit more complicated, unstable properties, Installation and Debugging inconvenience.

Summary of the invention

The purpose of the utility model starts, when exhaling, closes automatically the medical physiotherapeutic lung ventilator controller of motor automatically when the patient is air-breathing with regard to being to provide a kind of in order to address the above problem.

The utility model is realized above-mentioned purpose through following technical scheme:

The utility model comprises the motor of AC power, power circuit, astable oscillator, control circuit and physiotherapy lung ventilator; Said astable oscillator comprises time-base integrated circuit, first capacitor, second capacitor, first resistor, second resistor and potentiometer; The electrode input end of said time-base integrated circuit is connected with the cathode output end of the forced resetting end of said time-base integrated circuit, said power circuit and first end of said first resistor respectively; Second end of said first resistor is connected with the signal input part of said time-base integrated circuit and first end of said second resistor respectively; Second end of said second resistor is connected and is connected with the low triggering end of the high-triggering end of the sliding end of said potentiometer, said time-base integrated circuit, said time-base integrated circuit and first end of said first capacitor respectively behind the said potentiometer; Second end of said first capacitor is connected with the cathode output end of the negative input of said time-base integrated circuit, said power circuit and first end of said second capacitor respectively, and second end of said second capacitor is connected with the discharge end of said time-base integrated circuit; Said control circuit comprises the 3rd resistor, the 4th resistor, the 5th resistor, the first transistor, transistor seconds, diode and relay; The base stage of said the first transistor is connected and is connected with the signal output part of said time-base integrated circuit behind said the 3rd resistor; The emitter of said the first transistor is connected with the cathode output end of said power circuit with the anodal of first end of said relay, said diode respectively; The collector of said the first transistor is connected and is connected with first end of said the 5th resistor and the base stage of said transistor seconds respectively behind said the 4th resistor; The collector of said transistor seconds is connected with second end of said relay and the negative pole of said diode respectively, and second end of said the 5th resistor is connected with the emitter of said transistor seconds and the cathode output end of said power circuit respectively; Two ends after the series connection of the motor of said physiotherapy lung ventilator and the normal open switch of said relay are connected with said AC power.

The beneficial effect of the utility model is:

The working power of motor is cut off in can be when the patient the is air-breathing automatic actuating motor running of the utility model automatically when exhaling, promptly energy-conservationly use again, has that circuit is fairly simple, stable performance, an Installation and Debugging advantage easily.

Description of drawings

Fig. 1 is the circuit diagram of the utility model.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further:

As shown in Figure 1: the utility model comprises the motor of AC power, power circuit, astable oscillator, control circuit and physiotherapy lung ventilator; Astable oscillator comprises time-base integrated circuit IC1, the first capacitor C1, the second capacitor C2, first resistor R 1, second resistor R 2 and potentiometer RP; The electrode input end of time-base integrated circuit IC1 is connected with the forced resetting end of time-base integrated circuit IC1, the cathode output end of power circuit and first end of first resistor R 1 respectively; Second end of first resistor R 1 is connected with the signal input part of time-base integrated circuit IC1 and first end of second resistor R 2 respectively; Be connected with the sliding end of potentiometer RP, the high-triggering end of time-base integrated circuit IC1, the low triggering end of time-base integrated circuit IC1 and first end of the first capacitor C1 respectively behind second end series connection potentiometer RP of second resistor R 2; Second end of the first capacitor C1 is connected with the negative input of time-base integrated circuit IC1, the cathode output end of power circuit and first end of the second capacitor C2 respectively, and second end of the second capacitor C2 is connected with the discharge end of time-base integrated circuit IC1; Control circuit comprises the 3rd resistor R 3, the 4th resistor R 4, the 5th resistor R 5, the first transistor VT1, transistor seconds VT2, diode VD and relay K; The base stage of the first transistor VT1 the 3rd resistor R 3 back of connecting is connected with the signal output part of time-base integrated circuit IC1; The emitter of the first transistor VT1 is connected with first end of relay K, the positive pole of diode VD and the cathode output end of power circuit respectively; The collector of the first transistor VT1 is connected and is connected with first end of the 5th resistor R 5 and the base stage of transistor seconds VT2 respectively after the 4th resistor R 4; The collector of transistor seconds VT2 is connected with second end of relay K and the negative pole of diode VD respectively, and second end of the 5th resistor R 5 is connected with the emitter of transistor seconds VT2 and the cathode output end of power circuit respectively; Two ends after the motor M of physiotherapy lung ventilator and the normal open switch K-1 of the relay series connection are connected with AC power.

As shown in Figure 1, the principle of work of the utility model is following:

Energized, alternating current 220V voltage are after power transformer T step-down, rectifier bridge heap UR rectification, filter capacitor C3 filtering and circuit of three-terminal voltage-stabilizing integrated IC2 voltage stabilizing, for astable oscillator and control circuit provide 9V working power.

After the astable oscillator energising work, the signal output part output frequency of time-base integrated circuit IC1 is the oscillation pulse signal of 25～40Hz, makes the first transistor VT1 and transistor seconds VT2 gap conducting, relay K and the work of motor M gap.When basis set became the signal output part output high level of IC circuit 1 at that time, the first transistor VT1 and transistor seconds VT2 ended, and the relay K dead electricity discharges, and motor M outage quits work.

Claims

1. medical physiotherapeutic lung ventilator controller; It is characterized in that: the motor that comprises AC power, power circuit, astable oscillator, control circuit and physiotherapy lung ventilator; Said astable oscillator comprises time-base integrated circuit, first capacitor, second capacitor, first resistor, second resistor and potentiometer; The electrode input end of said time-base integrated circuit is connected with the cathode output end of the forced resetting end of said time-base integrated circuit, said power circuit and first end of said first resistor respectively; Second end of said first resistor is connected with the signal input part of said time-base integrated circuit and first end of said second resistor respectively; Second end of said second resistor is connected and is connected with the low triggering end of the high-triggering end of the sliding end of said potentiometer, said time-base integrated circuit, said time-base integrated circuit and first end of said first capacitor respectively behind the said potentiometer; Second end of said first capacitor is connected with the cathode output end of the negative input of said time-base integrated circuit, said power circuit and first end of said second capacitor respectively, and second end of said second capacitor is connected with the discharge end of said time-base integrated circuit; Said control circuit comprises the 3rd resistor, the 4th resistor, the 5th resistor, the first transistor, transistor seconds, diode and relay; The base stage of said the first transistor is connected and is connected with the signal output part of said time-base integrated circuit behind said the 3rd resistor; The emitter of said the first transistor is connected with the cathode output end of said power circuit with the anodal of first end of said relay, said diode respectively; The collector of said the first transistor is connected and is connected with first end of said the 5th resistor and the base stage of said transistor seconds respectively behind said the 4th resistor; The collector of said transistor seconds is connected with second end of said relay and the negative pole of said diode respectively, and second end of said the 5th resistor is connected with the emitter of said transistor seconds and the cathode output end of said power circuit respectively; Two ends after the series connection of the motor of said physiotherapy lung ventilator and the normal open switch of said relay are connected with said AC power.