CN2133297Y

CN2133297Y - Automatic control medical sterilized cupboard

Info

Publication number: CN2133297Y
Application number: CN92216994U
Authority: CN
Inventors: 石晓红; 常杰; 戒建彪
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-10
Filing date: 1992-09-10
Publication date: 1993-05-19
Anticipated expiration: 2002-09-10

Abstract

The utility model provides an automatic-control medical sterilizing cabinet which comprises a cabinet body and a cabinet door, wherein, the cabinet body is provided with a sterilizing chamber, a working chamber and a control circuit; the working chamber is provided with a storing box for formaldehyde, a storing box for ammonia water, an electric furnace, an evaporating dish, a pipeline, an exhaust valve, a recycle valve, an air inlet valve, a filling valve for formaldehyde and a filling valve for ammonia water. The utility model which can automatically control the injecting quantity of the formaldehyde and the time spent for fumigating the formaldehyde can automatically inject the ammonia water to neutralize the odor of the formaldehyde, thoroughly altering the present status that the traditional the sterilizing time of the formaldehyde is long with great penetrating odor. The utility model is particularly suitable for high-precision medical utensils which can not be sterilized by high temperature, high pressure and the soaking of drugs.

Description

Automatic control medical sterilized cupboard

This utility model relates to a kind of medical sterilization cabinet, especially a kind of medical apparatus and instruments and articles for use is carried out the automatic control medical sterilization cabinet that the gas temperature is steamed.

At present, hospital generally adopts method that the formaldehyde gas temperature steams to the surface sterilizing of operating theater instruments and should not carry out the sterilization of instrument, apparatus and the articles for use of high temperature, high pressure, drug immersion, this method is apparatus, articles for use to be put into the bottom hermetic container of formalin is housed, and volatilizing naturally or heat formaldehyde on a small quantity by formaldehyde produces some formaldehyde vaporses and sterilize.In order to reach sterilization effect; must be through the long time (5～12 hours); just can reach sterilization desired gas concentration; usually because container poorly sealed; the poor reliability of sterilization, when opening the container removal equipment, the irritative gas of formaldehyde has directly damaged medical worker's health; the apparatus articles for use that take out must be treated can use after abnormal smells from the patient scatters and disappears, and can't satisfy emergency treatment instructions for use and environmental protection requirement.

The purpose of this utility model provides a kind of by computer Automatic Control, efficient, reliable and to the automatic control medical sterilization cabinet of the pollution-free injury of medical worker.

Technical solution of the present utility model is: a kind of automatic control medical sterilization cabinet, comprise cabinet and cabinet door 1, and it is characterized in that:

Be provided with sterile chamber 20, operating room 21 and control circuit 19 in a, the cabinet;

Be provided with formaldehyde reserve tank 16, ammonia reserve tank 17 and vaporization chamber 5 in b, the operating room 21, be provided with fan 9 in the vaporization chamber 5, heating furnace 10 and evaporating dish 11, one termination formaldehyde gas of vaporization chamber 5 enters pipe 18, and formaldehyde gas enters pipe 18 and communicates with sterile chamber 20, and the other end one tunnel of vaporization chamber 5 taps into trachea 6, air inlet pipe 6 taps into air valve 7 backs and is interlinked to the outside with cabinet, another road trachea 2 that runs in, exhaustor 2 and circulating valve 4 Hou Yilu that joins communicates with sterile chamber 20, and air valve 3 backs of running in, another road are interlinked to the outside with cabinet;

Be connected to formaldehyde conduit 13 and formaldehyde injection valve 14 between c, formaldehyde reserve tank 16 and the evaporating dish 11, be connected to ammonia conduit 12 and ammonia injection valve 15 between ammonia reserve tank 17 and the evaporating dish 11;

D, air bleeding valve 3, circulating valve 4, intake valve 7, formaldehyde injection valve 14 and ammonia injection valve 15 all join with control circuit 19;

E, control circuit 19 comprise single-chip microcomputer 23, be connected to isolated drive circuit 24,25,26,27,28, relay 29,31, function key 33, indicating circuit 34 and self-checking circuit 36 with single-chip microcomputer 23, be connected to electric furnace 30 with relay 29, be connected to fan 32 with relay 31.

Be connected to digital display circuit 35 and acoustics circuit 38 with single-chip microcomputer 23.

Also be connected to liquid level control circuit 37 and temperature-control circuit 39 with self-checking circuit 36.

This utility model is applied to the medical sterilization field with new and high technology, makes traditional formaldehyde sterilization time present situation long, that penetrating odor is big obtain not having end change.This utility model is simple to operate, sterilization effect accurately and reliably, sterilization time shortened greatly, by original 5～12 hours, shorten to about one hour, apparatus after the sterilization can use immediately, has satisfied the emergency treatment needs, has thoroughly eliminated the infringement of formaldehyde gas to human body, sterile chamber's temperature is near room temperature, accurate medical apparatus and instruments there is not operation, harmless to operation demonstration micro mirror and various optical lens, especially be suitable for and can not carry out high temperature, high pressure, the high-accuracy medical apparatus of drug immersion disinfectant.

Accompanying drawing 1 is the sketch map of this utility model embodiment.

Accompanying drawing 2 is the circuit block diagram of this utility model embodiment.

Accompanying drawing 3 is this utility model embodiment control circuit schematic diagram.

Accompanying drawing 4 is the digital display circuit schematic diagram of this utility model embodiment.

Accompanying drawing 5 is the acoustics circuit schematic diagram of this utility model embodiment.

Below in conjunction with drawings and Examples this utility model is further described.

Shown in Fig. 1,2,3,4,5, a kind of automatic control medical sterilization cabinet comprises cabinet and cabinet door 1,

Be provided with sterile chamber 20, operating room 21 and control circuit 19 in the cabinet;

Be provided with formaldehyde reserve tank 16, ammonia reserve tank 17 and vaporization chamber 5 in the operating room 21, be provided with fan 9 in the vaporization chamber 5, heating furnace 10 and evaporating dish 11, one termination formaldehyde gas of vaporization chamber 5 enters pipe 18, and formaldehyde gas enters pipe 18 and communicates with sterile chamber 20, and the other end one tunnel of vaporization chamber 5 taps into trachea 6, air inlet pipe 6 taps into air valve 7 backs and is interlinked to the outside with cabinet, another road trachea 2 that runs in, exhaustor 2 and circulating valve 4 Hou Yilu that joins communicates with sterile chamber 20, and air valve 3 backs of running in, another road are interlinked to the outside with cabinet;

Be connected to formaldehyde conduit 13 and formaldehyde injection valve 14 between formaldehyde reserve tank 16 and the evaporating dish 11, be connected to ammonia conduit 12 and ammonia injection valve 15 between ammonia reserve tank 17 and the evaporating dish 11;

Air bleeding valve 3, circulating valve 4, intake valve 7, formaldehyde injection valve 14 and ammonia injection valve all join with control circuit 19;

Control circuit 19 comprises single-chip microcomputer 23, be connected to isolated drive circuit 24,25,26,27,28, relay 29,31, function key 33, indicating circuit 34 and self-checking circuit 36 with single-chip microcomputer 23, be connected to electric furnace 30 with relay 29, be connected to fan 32 with relay 31.

Door 1 is selected the door of the sealing strip that is magnetic for use, and cabinet has wheel 8.

The P0.7 relay termination J1 of singlechip CPU (MCS8751), the termination alternating current source 220V normal battle one of relay J 1, termination thermocouple (electric furnace) RD.

The P1.0 relay termination J2 of singlechip CPU, the termination dc source V2 normal battle one of relay J 2, the motor D J of other end wind-receiving fan 9, other end connecting resistance R1, the R2 of motor D J, one termination voltage V1 of resistance R 1, one end ground connection of resistance R 2, the contact of resistance R 1, R2 meet self-checking circuit 36 ic chip 1(74LS150) D10 end.

Be connected to three button AJ1, AJ2 with P1.1, P1.2, the P1.3 of singlechip CPU, AJ3 is a function key.

Resistance R 3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R53 that the P2.0 of singlechip CPU, P2.1, P2.2, P2.3, P2.4, P2.5, P2.6, P2.7, P1.4, P1.5 and P1.6 end meet display lamp ZD1, ZD2, ZD3, ZD4, ZD5, ZD6, ZD7, ZD8, ZD9, ZD10, ZD11 respectively and be connected in series mutually with display lamp respectively.

The P3.0 of singlechip CPU, P3.1 end joins by latching ic chip 2, IC3, IC4, IC5(74LS164) charactron IC6; The digital display circuit 35 that IC7, IC8, IC9 form.

The P1.7 of singlechip CPU, P3.7 termination acoustics circuit 38.The P1.7 end joins with resistance R 46, the base stage of another termination audion BG7 of resistance R 46, and resistance R 47 connects between the colelctor electrode and base stage of audion BG7, connects speaker Y, ground connection behind the emitter stage connecting resistance R48 of audion BG7.

Integrated IC10 of P3.7 termination sound equipment, the peripheral connecting resistance R49 of integrated IC10 of sound equipment, its output connects capacitor C 1, resistance R 50 and integrated operational amplifier IC11, connecting resistance R51 between the negative terminal of integrated operational amplifier IC11 and the outfan, output termination audion BG8, the BG9 of integrated operational amplifier IC11, its output connects speaker Y, ground connection after connecing capacitor C 2.

The P0.0 of singlechip CPU, P0.1, P0.2, P0.3, P0.4 end meet photocoupler GD1, GD2, GD3, GD4 and GD5 respectively.

Photocoupler GD1 and resistance R 13, R14, R23, R28, R29, audion BG1, electromagnetic valve DC1(air bleeding valve 3) join.

Photocoupler GD2 and resistance R 15, R16, R24, R30, R31, audion BG2, electromagnetic valve DC2(circulating valve 4) join.

Photocoupler GD4 and resistance R 19, R20, R26, R34, R35, audion BG4, electromagnetic valve DC4(formaldehyde injection valve 14) join.

Photocoupler GD5 and resistance R 22, R21, R27, R52, R36, audion BG5, electromagnetic valve DC5(ammonia injection valve 15) join.

Latch ic chip 1(74LS164 in the P3.2 of singlechip CPU, P3.3, P3.4, P3.5, the P3.6 termination self-checking circuit 36) A0, A1, A2, A3, W end, latch ic chip 1(74LS164) D0, D1, D2, D3, D4 termination electromagnetic valve DC1, DC2, DC3, DC4, DC5, the D7 that latchs ic chip 1, D8 hold respectively that connecting resistance R37, R38, R39, R40 and liquid level sensor CG1, CG2, liquid level sensor CG1, CG2 place formaldehyde reserve tank 16 and ammonia reserve tank 17 respectively.

Latch the D9 termination temperature-control circuit 39 of ic chip 1.

Temperature-control circuit 39 is by critesistor t1, t2, and resistance R 42, R43, R44, R45, R41 and audion BG6 join and form, and the colelctor electrode of audion BG6 connects the D9 end of ic chip 1.

31 termination voltage V1 of singlechip CPU, 18,19 termination quartz crystal SJT.

Entire circuit is powered by DC voltage V1, V2.

Operation principle: single-chip microcomputer is finished input, storage, is carried out function according to each signal of function key input.System carries out self check before system's operation, and outside luminous tube is bright entirely, music alarm device sounding, and after inner each channel check was pinpointed the problems, buzzer piped continuously, and system can not work on.Self check just often, the signal input of system wait formaldehyde, time key, after pressing the operation key, system starts working, start the formaldehyde electromagnetic valve, the formaldehyde that injects ormal weight is to evaporator boat, simultaneously, the electric furnace heating makes the formaldehyde evaporation, electric fan enters pipe with formaldehyde gas through formaldehyde gas and is blown into the sterile chamber, after reaching the scheduled time, starts the ammonia injection valve, add quiet ammonia of working as, and heating produces ammonia and formaldehyde gas fully neutralizes, and eliminates its penetrating odor, gets rid of residual gas at last, send musical sound, the report sterilization finishes.

Claims

1, a kind of automatic control medical sterilization cabinet comprises cabinet and cabinet door 1, it is characterized in that:

2, automatic control medical sterilization cabinet according to claim 1 is characterized in that: be connected to digital display circuit 35 and acoustics circuit 38 with single-chip microcomputer 23.

3, automatic control medical sterilization cabinet according to claim 1 and 2 is characterized in that: also be connected to liquid level control circuit 37 and temperature-control circuit 39 with self-checking circuit 36.