CN107046275B - A kind of Medical Devices air pressure duplicate protection system and method - Google Patents
A kind of Medical Devices air pressure duplicate protection system and method Download PDFInfo
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- CN107046275B CN107046275B CN201710220768.3A CN201710220768A CN107046275B CN 107046275 B CN107046275 B CN 107046275B CN 201710220768 A CN201710220768 A CN 201710220768A CN 107046275 B CN107046275 B CN 107046275B
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- 239000003990 capacitor Substances 0.000 claims description 39
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- 238000003199 nucleic acid amplification method Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 3
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- 230000007547 defect Effects 0.000 abstract description 2
- 230000036632 reaction speed Effects 0.000 abstract 1
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- 208000027418 Wounds and injury Diseases 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
- H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
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Abstract
A kind of Medical Devices air pressure duplicate protection system disclosed by the invention; including single-chip microcontroller; single-chip microcontroller, which generates signal source and is transmitted to pneumatic control circuits, exports a voltage voltage input, and the voltage voltage input is divided into two-way: all the way by baroswitch to Pneumatic controller；Another way is connected to circuit detection unit, and when pneumatic control circuits exception, circuit detection unit exports a Trig control signal, baroswitch off voltage voltage input is triggered, to cut off Pneumatic controller；When single-chip microcontroller determines the pressure anomaly of air pressure output device by pressure sensor, pressure acquisition circuit, output protection signal control pressure control switch is disconnected, to cut off Pneumatic controller.The defects of present invention overcomes the gas control delay of response of existing Medical Devices, reliability is insufficient has air pressure double protection functions, and the first reaction speed protected again is far faster than traditional air pressure safeguard measure.
Description
Technical field
The present invention relates to medical instruments field, in particular to a kind of Medical Devices air pressure duplicate protection system and method.
Background technique
Being constantly progressive and develop and the variation of population structure, medical rehabilitation gradually obtain the pass of common people with society
Note and attention.And medical instrument is very important a part in medical rehabilitation, in the activity such as many medical treatment, rehabilitations now
All it be unable to do without medical instrument.In medical instrument, many equipment have using pressure control, in order to ensure that the safety of equipment makes
With essentially all of equipment has certain gas circuit safeguard measure.
Currently, existing air pressure safeguard measure is usually controller by monitoring pressure in real time sensor signal, work as gas circuit
When abnormal, the collected signal of pressure sensor sends single-chip microcontroller to, and single-chip microcontroller responds processing, so that gas circuit be allowed to stop work
Make.This system by baroceptor detection response, although quickly, in this event raced against time of medical treatment,
After exception occurs in gas circuit, system just detects signal, then sounds an alarm or close gas conveying, this is very likely
Injury is caused to patient.Moreover, the reliability that single gas circuit is protected is insufficient, once pressure sensor cisco unity malfunction,
Or when program exception, system will lose the monitoring and control function to gas circuit loop, and pressure size is just uncontrollable at this time,
It is unexpected that injury is very likely to cause to patient.
Therefore, a kind of speed that pressure abnormity processing can be improved, and the system tool with dual air pressure protection are designed
It is of great importance.
Summary of the invention
It is an object of the invention to overcome the gas control delay of response of existing Medical Devices, the defects of reliability is insufficient, mention
For a kind of Medical Devices air pressure duplicate protection system, which has an air pressure double protection functions, and first protect again it is anti-
Answer speed far faster than traditional air pressure safeguard measure.
Another object of the present invention is to provide a kind of Medical Devices air pressure double protection methods.
The purpose of the present invention is realized by the following technical solution:
A kind of Medical Devices air pressure duplicate protection system, including single-chip microcontroller, pneumatic control circuits, circuit detection unit, gas
Control switch, Pneumatic controller, air pressure output device, pressure sensor, pressure acquisition circuit are pressed, wherein single-chip microcontroller generates gas
It presses the signal source Ui of control circuit and is transmitted to pneumatic control circuits, pneumatic control circuits export a voltage voltage input, described
Voltage voltage input is divided into two-way: passing through control of the baroswitch to Pneumatic controller, as Pneumatic controller all the way
Signal realizes the control of air pressure size；Another way is connected to circuit detection unit, when pneumatic control circuits exception, circuit detection
Unit exports a Trig control signal, triggers baroswitch, baroswitch off voltage voltage input, to cut off
Pneumatic controller realizes air pressure defencive function；Whether Pneumatic controller works for control pressure output device；Single-chip microcontroller
Determine whether the pressure of air pressure output device is normal by pressure sensor, pressure acquisition circuit, when determining abnormal, output is protected
Signal is protected to baroswitch, control pressure control switch disconnects, to cut off Pneumatic controller.
The pneumatic control circuits include amplifying circuit, integrating circuit, difference channel, positive-negative-positive pipe Q1, capacitor C6, signal
Source Ui reaches integrating circuit after amplifying by amplifying circuit, and positive-negative-positive pipe Q1 is transferred to after integral, after positive-negative-positive pipe Q1 amplification
A non-inverting input terminal for connecting integrating circuit by difference channel again, constitutes a closed-loop control network, one end of capacitor C6
Ground connection, the other end respectively with difference channel, positive-negative-positive pipe Q1 is connect and output voltage control source.
The pneumatic control circuits further include zener diode D1, resistance R3, resistance R4, resistance R6, capacitor C1, capacitor
C3；
The amplifying circuit includes resistance R1, resistance R2, integrated transporting discharging U1B, wherein one end of resistance R1 and integrated transporting discharging
The inverting input terminal of U1B connects, and the output end of the other end and integrated transporting discharging U1B are commonly connected to integrating circuit；The one of resistance R2
End is connect with the inverting input terminal of integrated transporting discharging U1B, other end input signal source Ui；The homophase input of integrated transporting discharging U1B terminates
Ground；
The integrating circuit includes resistance R5, capacitor C2, integrated transporting discharging U2B, wherein one end of resistance R5 and integrated transporting discharging
The output end of U1B connects, and the other end is connect with the inverting input terminal of integrated transporting discharging U2B；One end of capacitor C2 and integrated transporting discharging U2B
Inverting input terminal connection, the output end of the other end and integrated transporting discharging U2B is commonly connected to the anode of zener diode D1, pressure stabilizing
The cathode of diode D1 is connect after resistance R6 with the base stage of positive-negative-positive pipe Q1；One end of resistance R3 is with zener diode D1's
Cathode connection, the other end are connect with the emitter of positive-negative-positive pipe Q1；One end of resistance R4 is connect with the base stage of positive-negative-positive pipe Q1, another
End is connect with the emitter of positive-negative-positive pipe Q1；Capacitor C1, capacitor C3 one end connect respectively with the emitter of positive-negative-positive pipe Q1, it is another
End is grounded respectively；
The difference channel includes resistance R7, resistance R8, resistance R9, resistance R10, resistance R13, integrated transporting discharging U3B, wherein
The output end of integrated transporting discharging U3B is connect with the non-inverting input terminal of integrated transporting discharging U2B, and one end of resistance R13 is with integrated transporting discharging U3B's
Inverting input terminal connection, the other end are connect with the non-inverting input terminal of integrated transporting discharging U2B；One end of resistance R8 and integrated transporting discharging U3B
Non-inverting input terminal connection, the other end ground connection；One end of resistance R7 is connect with the non-inverting input terminal of integrated transporting discharging U3B, the other end
It is connect with the collector pole of positive-negative-positive pipe Q1；One end of resistance R9 is connect with the collector pole of positive-negative-positive pipe Q1, the other end and capacitor
C6 connection.
The circuit detection unit includes resistance R11, resistance R12, integrated transporting discharging U4B, wherein one end of resistance R11 and gas
Control circuit is pressed to be connected, input voltage voltage input, the non-inverting input terminal connection of other end integrated transporting discharging U4B；One end of resistance R12
It is connected with pneumatic control circuits, other end ground connection；The inverting input terminal of integrated transporting discharging U4B and the output end of integrated transporting discharging U4B connect
It connects, the output end of integrated transporting discharging U4B is connect with baroswitch.
The baroswitch includes resistance R18, NPN type pipe Q2, zener diode D2, relay, wherein resistance R18
One end connect with circuit detection unit, the other end is connect with the base stage of NPN type pipe Q2；The emitter of NPN type pipe Q2 is grounded, collection
Electrode is connect by zener diode D2 with relay；Relay is connect with Pneumatic controller.
The pressure acquisition circuit includes resistance R15, resistance R16, resistance R17, capacitor C8, capacitor C9, integrated transporting discharging
U5B, wherein one end of capacitor C8 is connect with single-chip microcontroller, other end ground connection；One end of resistance R15 is connect with single-chip microcontroller, the other end
It is connect with integrated transporting discharging U5B output end；Integrated transporting discharging U5B output end is connect with non-inverting input terminal, and the reverse phase of integrated transporting discharging U5B is defeated
Enter end to connect by resistance R16 with pressure sensor；Resistance R17, one end of capacitor C9 are defeated with the reverse phase of integrated transporting discharging U5B respectively
Enter end connection, the other end is grounded respectively.
The Pneumatic controller includes solenoid valve, air pump, proportioning valve.
The air pressure output device includes air pressure shock wave handle, air bag, airbag.
Another object of the present invention is realized by the following technical solution:
A kind of Medical Devices air pressure double protection method comprising the steps of:
Single-chip microcontroller generates the signal source Ui of pneumatic control circuits and is transmitted to pneumatic control circuits, pneumatic control circuits output
One voltage voltage input；
Voltage voltage input is divided into two-way: all the way by baroswitch to Pneumatic controller, filling as pressure control
The control signal set realizes the control of air pressure size；Another way is connected to circuit detection unit, when pneumatic control circuits exception,
Circuit detection unit one Trig control signal of output, triggering baroswitch, baroswitch off voltage voltage input,
To cut off Pneumatic controller, air pressure defencive function is realized；Pneumatic controller for control pressure output device whether work
Make；
Single-chip microcontroller determines whether the pressure of air pressure output device is normal, sentences by pressure sensor, pressure acquisition circuit
When fixed abnormal, output protection signal to baroswitch, control pressure control switch is disconnected, to cut off pressure control dress
It sets.
The single-chip microcontroller generates the signal source Ui of pneumatic control circuits, is accomplished by the following way: single-chip microcontroller generates
PWM value by low-pass filtering or DAC conversion generate pneumatic control circuits signal source Ui.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1, reaction when circuit checker of the invention occurs abnormal to air pressure more rapidly, in time, and increases
One air pressure defencive function again increases circuit detection module, reaches the function of protection air pressure.
2, according to the realization of the above technology, present invention reduces patients by the risk of unexpected injury, more can satisfy medical treatment
The safe handling demand of equipment has safer guarantee.
3, circuit detection unit of the present invention, baroswitch, Pneumatic controller constitute first and protect again；Pressure sensing
Device, pressure acquisition circuit, single-chip microcontroller, baroswitch, Pneumatic controller constitute second and protect again.It is actually of the invention
Duplicate protection does not make stringent successive differentiation, but duplicate protection is simultaneously in action, only often causes gas circuit abnormal
Major part the reason is that control circuit caused extremely, so circuit detection unit, baroswitch, Pneumatic controller group
At protection scheme tend to quickly respond, so referred to as first protects again；And gas circuit is detectd by pressure sensor extremely
Measuring often has hysteresis quality, so referred to as second protects again.If the variation of air pressure is sufficiently fast, second protects that also have can again
Can become first protect again or first again protection and second again protect and meanwhile start.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of Medical Devices air pressure duplicate protection system of the present invention.
Fig. 2 is a kind of circuit diagram of Medical Devices air pressure duplicate protection system of the present invention.
Fig. 3 is the circuit diagram of pneumatic control circuits of the present invention.
Specific embodiment
Present invention will now be described in further detail with reference to the embodiments and the accompanying drawings, but embodiments of the present invention are unlimited
In this.
Such as Fig. 1, a kind of Medical Devices air pressure duplicate protection system, including the detection of single-chip microcontroller, pneumatic control circuits, circuit are single
Member, baroswitch, Pneumatic controller, air pressure output device, pressure sensor, pressure acquisition circuit, wherein single-chip microcontroller
It generates the signal source Ui of pneumatic control circuits and is transmitted to pneumatic control circuits, pneumatic control circuits export a voltage control
Source, the voltage voltage input are divided into two-way: all the way by baroswitch to Pneumatic controller, as Pneumatic controller
Control signal, realize air pressure size control；Another way is connected to circuit detection unit, when pneumatic control circuits exception, electricity
Road detection unit one Trig control signal of output, triggering baroswitch, baroswitch off voltage voltage input, from
And Pneumatic controller is cut off, realize air pressure defencive function；Whether Pneumatic controller works for control pressure output device；
Single-chip microcontroller determines whether the pressure of air pressure output device is normal by pressure sensor, pressure acquisition circuit, when determining abnormal,
Output protection signal is to baroswitch, and control pressure control switch disconnects, to cut off Pneumatic controller.
The pneumatic control circuits include amplifying circuit, integrating circuit, difference channel, positive-negative-positive pipe Q1, capacitor C6, signal
Source Ui reaches integrating circuit after amplifying by amplifying circuit, and positive-negative-positive pipe Q1 is transferred to after integral, after positive-negative-positive pipe Q1 amplification
A non-inverting input terminal for connecting integrating circuit by difference channel again, constitutes a closed-loop control network, one end of capacitor C6
Ground connection, the other end respectively with difference channel, positive-negative-positive pipe Q1 is connect and output voltage control source.
Such as Fig. 3, the pneumatic control circuits further include zener diode D1, resistance R3, resistance R4, resistance R6, capacitor C1,
Capacitor C3；
The amplifying circuit includes resistance R1, resistance R2, integrated transporting discharging U1B, wherein one end of resistance R1 and integrated transporting discharging
The inverting input terminal of U1B connects, and the output end of the other end and integrated transporting discharging U1B are commonly connected to integrating circuit；The one of resistance R2
End is connect with the inverting input terminal of integrated transporting discharging U1B, other end input signal source Ui；The homophase input of integrated transporting discharging U1B terminates
Ground；The model LM358M of integrated transporting discharging U1B；
The integrating circuit includes resistance R5, capacitor C2, integrated transporting discharging U2B, wherein one end of resistance R5 and integrated transporting discharging
The output end of U1B connects, and the other end is connect with the inverting input terminal of integrated transporting discharging U2B；One end of capacitor C2 and integrated transporting discharging U2B
Inverting input terminal connection, the output end of the other end and integrated transporting discharging U2B is commonly connected to the anode of zener diode D1, pressure stabilizing
The cathode of diode D1 is connect after resistance R6 with the base stage of positive-negative-positive pipe Q1；One end of resistance R3 is with zener diode D1's
Cathode connection, the other end are connect with the emitter of positive-negative-positive pipe Q1；One end of resistance R4 is connect with the base stage of positive-negative-positive pipe Q1, another
End is connect with the emitter of positive-negative-positive pipe Q1；Capacitor C1, capacitor C3 one end connect respectively with the emitter of positive-negative-positive pipe Q1, it is another
End is grounded respectively；
The difference channel includes resistance R7, resistance R8, resistance R9, resistance R10, resistance R13, integrated transporting discharging U3B, wherein
The output end of integrated transporting discharging U3B is connect with the non-inverting input terminal of integrated transporting discharging U2B, and one end of resistance R13 is with integrated transporting discharging U3B's
Inverting input terminal connection, the other end are connect with the non-inverting input terminal of integrated transporting discharging U2B；One end of resistance R8 and integrated transporting discharging U3B
Non-inverting input terminal connection, the other end ground connection；One end of resistance R7 is connect with the non-inverting input terminal of integrated transporting discharging U3B, the other end
It is connect with the collector pole of positive-negative-positive pipe Q1；One end of resistance R9 is connect with the collector pole of positive-negative-positive pipe Q1, the other end and capacitor
C6 connection.
Such as Fig. 2, the circuit detection unit includes resistance R11, resistance R12, integrated transporting discharging U4B, wherein the one of resistance R11
End is connected with pneumatic control circuits, input voltage voltage input, the non-inverting input terminal connection of other end integrated transporting discharging U4B；Resistance R12
One end be connected with pneumatic control circuits, the other end ground connection；The inverting input terminal of integrated transporting discharging U4B is defeated with integrated transporting discharging U4B's
Outlet connection, the output end of integrated transporting discharging U4B are connect with baroswitch.
Such as Fig. 2, the baroswitch includes resistance R18, NPN type pipe Q2, zener diode D2, relay, wherein
One end of resistance R18 is connect with circuit detection unit, and the other end is connect with the base stage of NPN type pipe Q2；The emitter of NPN type pipe Q2
Ground connection, collector are connect by zener diode D2 with relay；Relay is connect with Pneumatic controller.
Such as Fig. 2, the pressure acquisition circuit includes resistance R15, resistance R16, resistance R17, capacitor C8, capacitor C9, integrates
Amplifier U5B, wherein one end of capacitor C8 is connect with single-chip microcontroller, other end ground connection；One end of resistance R15 is connect with single-chip microcontroller, separately
One end is connect with integrated transporting discharging U5B output end；Integrated transporting discharging U5B output end is connect with non-inverting input terminal, and integrated transporting discharging U5B's is anti-
Phase input terminal is connect by resistance R16 with pressure sensor；Pressure sensor is arranged among air pressure output device or attachment,
For monitoring the air pressure size of air pressure output device；Resistance R17, one end of capacitor C9 are defeated with the reverse phase of integrated transporting discharging U5B respectively
Enter end connection, the other end is grounded respectively.
The Pneumatic controller includes solenoid valve, air pump, proportioning valve etc..
The air pressure output device includes air pressure shock wave handle, air bag, airbag.
A kind of Medical Devices air pressure double protection method comprising the steps of:
The PWM value that single-chip microcontroller generates generates the signal source Ui of pneumatic control circuits by low-pass filtering or DAC conversion.Air pressure
Signal source Ui reaches integrating circuit in control circuit after amplifying by amplifying circuit, and amplifier tube Q1 is arrived after integral, is led to after Q1 amplification
Difference channel is crossed, U2B is coupled to, constitutes a closed-loop control network, the end C6+ exports one with U2B 6P mirror voltage；To
Export an accurately voltage voltage input.
Voltage voltage input is divided into two-way: all the way by relay switch to Pneumatic controller, as Pneumatic controller
Control signal, realize air pressure size control；Another way is connected to first and protects circuit detection module again, works as pneumatic control circuits
When abnormal, circuit detection module one Trig control signal of output, trigger relay, relay off voltage voltage input, thus
Pneumatic controller is cut off, realizes air pressure defencive function.
When the first heavy shielding failure, the second heavy protection act: by pressure sensor air pressure acquisition circuit, single-chip microcontroller is logical
ADC is crossed, determines pressure abnormity, output control protection signal: second protects control signal again.Second protects control signal to be connected to again
R19, R19 are coupled to Q2.When second protection control signal is got higher again, relay disconnection also can control, to cut off air pressure
Control device realizes air pressure defencive function.To realize the double protection functions of air pressure.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (8)
1. a kind of Medical Devices air pressure duplicate protection system, it is characterised in that: including single-chip microcontroller, pneumatic control circuits, circuit inspection
Unit, baroswitch, Pneumatic controller, air pressure output device, pressure sensor, pressure acquisition circuit are surveyed, wherein single
Piece machine generates the signal source Ui of pneumatic control circuits and is transmitted to pneumatic control circuits, and pneumatic control circuits export a voltage control
Source processed, the voltage voltage input are divided into two-way: all the way by baroswitch to Pneumatic controller, filling as pressure control
The control signal set realizes the control of air pressure size；Another way is connected to circuit detection unit, when pneumatic control circuits exception,
Circuit detection unit one Trig control signal of output, triggering baroswitch, baroswitch off voltage voltage input,
To cut off Pneumatic controller, air pressure defencive function is realized；Pneumatic controller for control pressure output device whether work
Make；Single-chip microcontroller determines whether the pressure of air pressure output device is normal by pressure sensor, pressure acquisition circuit, determines abnormal
When, output protection signal to baroswitch, control pressure control switch disconnects, to cut off Pneumatic controller；
The Pneumatic controller includes solenoid valve, air pump, proportioning valve；
The air pressure output device includes air pressure shock wave handle, air bag, airbag.
2. Medical Devices air pressure duplicate protection system according to claim 1, it is characterised in that: the pneumatic control circuits packet
Amplifying circuit, integrating circuit, difference channel, positive-negative-positive pipe Q1, capacitor C6 are included, signal source Ui is reached after amplifying by amplifying circuit
Integrating circuit is transferred to positive-negative-positive pipe Q1 after integral, connects integrating circuit by difference channel again after positive-negative-positive pipe Q1 amplification
A non-inverting input terminal, constitute a closed-loop control network, one end ground connection of capacitor C6, the other end respectively with difference channel,
Positive-negative-positive pipe Q1 connection and output voltage control source.
3. Medical Devices air pressure duplicate protection system according to claim 2, it is characterised in that: the pneumatic control circuits are also
Including zener diode D1, resistance R3, resistance R4, resistance R6, capacitor C1, capacitor C3；
The amplifying circuit includes resistance R1, resistance R2, integrated transporting discharging U1B's, wherein one end of resistance R1 and integrated transporting discharging U1B
The output end of inverting input terminal connection, the other end and integrated transporting discharging U1B are commonly connected to integrating circuit；One end of resistance R2 and collection
It is connected at the inverting input terminal of amplifier U1B, other end input signal source Ui；The non-inverting input terminal of integrated transporting discharging U1B is grounded；
The integrating circuit includes resistance R5, capacitor C2, integrated transporting discharging U2B's, wherein one end of resistance R5 and integrated transporting discharging U1B
Output end connection, the other end are connect with the inverting input terminal of integrated transporting discharging U2B；One end of capacitor C2 is anti-with integrated transporting discharging U2B's
The output end of the connection of phase input terminal, the other end and integrated transporting discharging U2B are commonly connected to the anode of zener diode D1, two pole of pressure stabilizing
The cathode of pipe D1 is connect after resistance R6 with the base stage of positive-negative-positive pipe Q1；One end of resistance R3 and the cathode of zener diode D1
Connection, the other end are connect with the emitter of positive-negative-positive pipe Q1；One end of resistance R4 is connect with the base stage of positive-negative-positive pipe Q1, the other end with
The emitter of positive-negative-positive pipe Q1 connects；Capacitor C1, capacitor C3 one end connect respectively with the emitter of positive-negative-positive pipe Q1, the other end point
It is not grounded；
The difference channel includes resistance R7, resistance R8, resistance R9, resistance R10, resistance R13, integrated transporting discharging U3B, wherein integrating
The output end of amplifier U3B is connect with the non-inverting input terminal of integrated transporting discharging U2B, one end of resistance R13 and the reverse phase of integrated transporting discharging U3B
Input terminal connection, the other end are connect with the non-inverting input terminal of integrated transporting discharging U2B；One end of resistance R8 is same with integrated transporting discharging U3B's
The connection of phase input terminal, other end ground connection；One end of resistance R7 is connect with the non-inverting input terminal of integrated transporting discharging U3B, the other end and PNP
The collector pole of type pipe Q1 connects；One end of resistance R9 is connect with the collector pole of positive-negative-positive pipe Q1, and the other end and capacitor C6 connect
It connects.
4. Medical Devices air pressure duplicate protection system according to claim 1, it is characterised in that: the circuit detection unit packet
Resistance R11, resistance R12, integrated transporting discharging U4B are included, wherein one end of resistance R11 is connected with pneumatic control circuits, input voltage control
Source processed, the non-inverting input terminal connection of other end integrated transporting discharging U4B；One end of resistance R12 is connected with pneumatic control circuits, the other end
Ground connection；The inverting input terminal of integrated transporting discharging U4B is connect with the output end of integrated transporting discharging U4B, the output end and gas of integrated transporting discharging U4B
Press control switch connection.
5. Medical Devices air pressure duplicate protection system according to claim 1, it is characterised in that: the baroswitch packet
Resistance R18, NPN type pipe Q2, zener diode D2, relay are included, wherein one end of resistance R18 is connect with circuit detection unit,
The other end is connect with the base stage of NPN type pipe Q2；The emitter of NPN type pipe Q2 is grounded, collector by zener diode D2 with after
Electric appliance connection；Relay is connect with Pneumatic controller.
6. Medical Devices air pressure duplicate protection system according to claim 1, it is characterised in that: the pressure acquisition circuit packet
Resistance R15, resistance R16, resistance R17, capacitor C8, capacitor C9, integrated transporting discharging U5B are included, wherein one end of capacitor C8 and single-chip microcontroller
Connection, other end ground connection；One end of resistance R15 is connect with single-chip microcontroller, and the other end is connect with integrated transporting discharging U5B output end；It is integrated
Amplifier U5B output end is connect with non-inverting input terminal, and the inverting input terminal of integrated transporting discharging U5B passes through resistance R16 and pressure sensor
Connection；Resistance R17, capacitor C9 one end connect respectively with the inverting input terminal of integrated transporting discharging U5B, the other end is grounded respectively.
7. a kind of Medical Devices air pressure double protection method, which is characterized in that comprise the steps of:
Single-chip microcontroller generates the signal source Ui of pneumatic control circuits and is transmitted to pneumatic control circuits, and pneumatic control circuits export one
Voltage voltage input；
Voltage voltage input is divided into two-way: all the way by baroswitch to Pneumatic controller, as Pneumatic controller
Signal is controlled, realizes the control of air pressure size；Another way is connected to circuit detection unit, when pneumatic control circuits exception, circuit
Detection unit one Trig control signal of output, triggering baroswitch, baroswitch off voltage voltage input, thus
Pneumatic controller is cut off, realizes air pressure defencive function；Whether Pneumatic controller works for control pressure output device；
Single-chip microcontroller determines whether the pressure of air pressure output device is normal by pressure sensor, pressure acquisition circuit, determines different
Chang Shi, output protection signal to baroswitch, control pressure control switch disconnects, to cut off Pneumatic controller.
8. Medical Devices air pressure double protection method according to claim 7, it is characterised in that: the single-chip microcontroller generates air pressure
The signal source Ui of control circuit, is accomplished by the following way: the PWM value that single-chip microcontroller generates is turned by low-pass filtering or DAC
Change the signal source Ui for generating pneumatic control circuits.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710220768.3A CN107046275B (en) | 2017-04-06 | 2017-04-06 | A kind of Medical Devices air pressure duplicate protection system and method |
| PCT/CN2017/115170 WO2018184398A1 (en) | 2017-04-06 | 2017-12-08 | Air-pressure double-protection system and method for medical device |
Applications Claiming Priority (1)
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| CN201710220768.3A CN107046275B (en) | 2017-04-06 | 2017-04-06 | A kind of Medical Devices air pressure duplicate protection system and method |
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| CN107046275A CN107046275A (en) | 2017-08-15 |
| CN107046275B true CN107046275B (en) | 2019-05-24 |
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| CN107046275B (en) * | 2017-04-06 | 2019-05-24 | 广州龙之杰科技有限公司 | A kind of Medical Devices air pressure duplicate protection system and method |
| CN109471393A (en) * | 2018-11-22 | 2019-03-15 | 广州龙之杰科技有限公司 | A kind of device and method in security control magnetic field |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2672933Y (en) * | 2003-12-30 | 2005-01-19 | 彭勇 | Intelligent start controller for water pump |
| CN203287128U (en) * | 2013-04-26 | 2013-11-13 | 天津长荣印刷设备股份有限公司 | Pressure detection and protection circuit |
| CN105864083A (en) * | 2016-04-29 | 2016-08-17 | 成都瑞阳机械有限公司 | Protective alarm type centrifugal fan control system |
| CN206640294U (en) * | 2017-04-06 | 2017-11-14 | 广州龙之杰科技有限公司 | A kind of Medical Devices air pressure duplicate protection system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3327342A1 (en) * | 1983-07-29 | 1985-02-07 | Peter 7800 Freiburg Pedersen | DEVICE FOR DETECTING AND EVALUATING THE PRESSURE IN THE BALLOON CUFF OF A CLOSED TRACHEAL TUBE |
| CN2529653Y (en) * | 2001-08-29 | 2003-01-08 | 赵修茂 | Medical transfusion system |
| CN2643836Y (en) * | 2003-07-18 | 2004-09-29 | 庄海 | Digitalized pressure-regulating and flow-regulating air-controlled medical instrument |
| CN201383093Y (en) * | 2009-03-13 | 2010-01-13 | 周平虎 | Air pressure monitor line for numerical control machine tool |
| CN202334932U (en) * | 2011-11-17 | 2012-07-11 | 广州龙之杰科技有限公司 | Double heating protective device of medical equipment |
| CN103610485B (en) * | 2013-12-10 | 2015-07-01 | 四川大学 | Device and method for automatically controlling blood occlusion of carotid artery |
| CN105327436A (en) * | 2014-08-08 | 2016-02-17 | 北京谊安医疗系统股份有限公司 | Control circuit of air way pressure of anaesthesia machine |
| CN107046275B (en) * | 2017-04-06 | 2019-05-24 | 广州龙之杰科技有限公司 | A kind of Medical Devices air pressure duplicate protection system and method |
-
2017
- 2017-04-06 CN CN201710220768.3A patent/CN107046275B/en active Active
- 2017-12-08 WO PCT/CN2017/115170 patent/WO2018184398A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2672933Y (en) * | 2003-12-30 | 2005-01-19 | 彭勇 | Intelligent start controller for water pump |
| CN203287128U (en) * | 2013-04-26 | 2013-11-13 | 天津长荣印刷设备股份有限公司 | Pressure detection and protection circuit |
| CN105864083A (en) * | 2016-04-29 | 2016-08-17 | 成都瑞阳机械有限公司 | Protective alarm type centrifugal fan control system |
| CN206640294U (en) * | 2017-04-06 | 2017-11-14 | 广州龙之杰科技有限公司 | A kind of Medical Devices air pressure duplicate protection system |
Also Published As
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| WO2018184398A1 (en) | 2018-10-11 |
| CN107046275A (en) | 2017-08-15 |
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Denomination of invention: A pneumatic double protection system and method for medical equipment Effective date of registration: 20220711 Granted publication date: 20190524 Pledgee: Shanghai Pudong Development Bank Limited by Share Ltd. Guangzhou branch Pledgor: GUANGZHOU LONGEST SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2022440000141 |
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Date of cancellation: 20230731 Granted publication date: 20190524 Pledgee: Shanghai Pudong Development Bank Limited by Share Ltd. Guangzhou branch Pledgor: GUANGZHOU LONGEST SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2022440000141 |
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Denomination of invention: A dual pressure protection system and method for medical equipment Effective date of registration: 20231208 Granted publication date: 20190524 Pledgee: Shanghai Pudong Development Bank Limited by Share Ltd. Guangzhou branch Pledgor: GUANGZHOU LONGEST SCIENCE & TECHNOLOGY Co.,Ltd. Registration number: Y2023980070353 |
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