Anesthetic evaporator

Abstract

The utility model discloses an anesthetic vaporizer, which is powered by double power supplies and double CPUs (central processing units) to monitor and control important components of a main body of the anesthetic vaporizer, and comprises a nozzle, a nozzle infrared LED (light-emitting diode), a nozzle infrared PT (potential transformer), a safety valve, an anesthetic hydraulic sensor, a heating plate, a heating NTC (negative temperature coefficient) and a microswitch, so that even if one of the power supplies or the CPUs breaks down, the anesthetic vaporizer can still give an alarm in time; the situation that anesthetic control is out of control is avoided, and the technical problems that an electronic anesthetic evaporator is powered by a single power source, alarm missing hidden danger exists in monitoring and control of a single CPU, and anesthetic control is out of control are solved.

Description

Technical Field

[0001] The present application relates to the technical field of medical devices, and in particular to an anesthesia vaporizer. Background Art

[0002] Anesthesia vaporizers are divided into mechanical and electronic types. The accuracy, safety and reliability of anesthetic concentration control of electronic anesthesia vaporizers are very important. Too high or too low anesthetic concentrations can lead to serious consequences. Too high anesthesia often leads to central nervous system paralysis. In severe cases, it can lead to loss of spontaneous breathing, respiratory arrest, cardiac arrest, and life-threatening. Insufficient anesthetic will lead to insufficient anesthesia depth, and the operation cannot be carried out normally. It may even cause overreaction, increased blood pressure, increased heart rate, and cardiovascular and cerebrovascular complications.

[0003] Therefore, it is necessary to design dual power supply, dual CPU and dual monitoring and control for electronic anesthesia vaporizer to ensure that when a device or unit fails, an alarm can be triggered in time to prevent anesthetic control from getting out of control and to avoid situations where the anesthetic concentration is too high or too low. Summary of the invention

[0004] The present application provides an anesthetic vaporizer, which solves the technical problems of single power supply, single CPU monitoring and control of electronic anesthetic vaporizers, hidden dangers of missed alarms, and loss of anesthetic control.

[0005] In view of this, the present application provides an anesthetic vaporizer, comprising:

[0006] Main power supply, backup power supply, power switch, main CPU, backup CPU and anesthesia vaporizer body;

[0007] The main power supply and the backup power supply are connected to the main CPU, the backup CPU and the anesthesia vaporizer body through the power switch;

[0008] The main CPU and the backup CPU are connected to each other for communication;

[0009] The main CPU and the backup CPU simultaneously monitor and control the nozzle, nozzle infrared LED, nozzle infrared PT, safety valve, anesthetic hydraulic sensor, heating plate, heating NTC, micro switch, the main power supply and the backup power supply of the anesthesia vaporizer body.

[0010] Optionally, the main power supply and the backup power supply may be:

[0011] VDD36V, VDD12V and VDD7V;

[0012] The main power supply and the backup power supply are connected to the nozzle, nozzle infrared LED, nozzle infrared PT, safety valve, heating plate, heating NTC, liquid level infrared LED, liquid level infrared PT, lighting LED, anesthetic hydraulic sensor, main CPU and backup CPU of the anesthesia vaporizer body through the power switching switch.

[0013] Optionally, it also includes:

[0014] The main CPU is connected to the debugging serial port via a TTL serial port;

[0015] The main CPU is connected to a watchdog and an EEPROM;

[0016] The main CPU is connected to the liquid level infrared LED, liquid level infrared PT, lighting LED and indicator light of the anesthesia vaporizer body.

[0017] Optionally, it also includes:

[0018] The backup CPU is connected to a watchdog and an atmospheric pressure sensor.

[0019] Optionally, it also includes:

[0020] Peripheral CPU;

[0021] The peripheral CPU is connected to a watchdog;

[0022] The peripheral CPU is connected to the main CPU and the backup CPU via an RS232 serial port;

[0023] The peripheral CPU is connected to the evaporator drive valve, evaporator fresh gas selection valve, evaporator pressure relief valve, evaporator air lock valve, evaporator bypass valve, drive pressure reserve, tank in-place detection and air lock in-place detection of the anesthesia evaporator main body.

[0024] Optionally, it also includes:

[0025] Host VPM;

[0026] The host VPM is provided with an atmospheric pressure sensor;

[0027] The host VPM is connected to a watchdog;

[0028] The host VPM is connected to the peripheral CPU via an RS232 serial port.

[0029] Optionally, it also includes:

[0030] Host VCM;

[0031] The host VCM is connected to the host VPM;

[0032] The host VCM is connected to a watchdog, a serial port and an ultrasonic oxygen sensor of the anesthesia vaporizer body.

[0033] Optionally, it also includes:

[0034] Main control board;

[0035] The main control board is connected to the host VPM and the host VCM via an RS232 serial port.

[0036] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0037] In the present application, an anesthetic vaporizer is provided, which is powered by dual power supplies and monitors and controls important components of the main body of the anesthetic vaporizer through dual CPUs, including a nozzle, a nozzle infrared LED, a nozzle infrared PT, a safety valve, an anesthetic hydraulic sensor, a heating plate, a heating NTC, and a micro switch. Even if one of the power supplies or the CPU fails, an alarm can still be given in time to avoid the loss of anesthetic control, thereby solving the technical problems of missed alarms and loss of anesthetic control in electronic anesthetic vaporizers with single power supply and single CPU monitoring and control. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the structure of an anesthetic vaporizer in an embodiment of the present application;

[0039] Figure 2 This is a dual CPU structure block diagram of an anesthesia vaporizer in an embodiment of the present application;

[0040] Figure 3 This is a dual power supply structure block diagram of an anesthesia vaporizer in an embodiment of the present application;

[0041] Wherein, the accompanying drawings are marked as follows:

[0042] 1. Main power supply; 2. Backup power supply; 3. Power switch; 4. Main CPU; 5. Backup CPU; 6. Anesthesia vaporizer body; 8. Peripheral CPU; 9. Host VPM; 10. Host VCM; 11. Main control board; 41. First watchdog; 51. Second watchdog; 81. Third watchdog; 91. Fourth watchdog; 101. Fifth watchdog; 42. EEPROM; 52. Atmospheric pressure sensor; 61. Nozzle; 62. Nozzle infrared LED; 63. Nozzle infrared PT; 64. Safety valve; 65 , anesthetic hydraulic pressure sensor; 66, heating plate; 67, heating NTC; 68, micro switch; 69, liquid level infrared LED; 70, liquid level infrared PT; 71, lighting LED; 72, indicator light; 73, evaporator drive valve; 74, evaporator fresh gas selection valve; 75, evaporator pressure relief valve; 76, evaporator air lock valve; 77, evaporator bypass valve; 78, drive pressure reserve; 79, tank in-place detection; 80, air lock in-place detection; 82, ultrasonic oxygen sensor; 83, anesthetic hydraulic pressure sensor; 102, serial port. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0044] The present application designs an anesthetic vaporizer, which solves the technical problems of single power supply, single CPU monitoring and control of electronic anesthetic vaporizers, hidden dangers of missed alarms, and loss of anesthetic control.

[0045] For easier understanding, see Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of an anesthetic vaporizer in an embodiment of the present application. Figure 2 This is a dual CPU structure block diagram of an anesthesia vaporizer in an embodiment of the present application. Figure 3 This is a dual power supply structure block diagram of an anesthetic vaporizer in an embodiment of the present application, such as Figures 1 to 3 As shown, specifically:

[0046] A main power supply 1, a backup power supply 2, a power switch 3, a main CPU 4, a backup CPU 5 and an anesthesia vaporizer body 6;

[0047] The main power supply 1 and the backup power supply 2 are connected to the main CPU 4, the backup CPU 5 and the anesthesia vaporizer body 6 through the power switch 3;

[0048] The main CPU 4 and the backup CPU 5 are connected to each other for communication;

[0049] The main CPU 4 and the backup CPU 5 simultaneously monitor and control the nozzle 61, nozzle infrared LED 62, nozzle infrared PT 63, safety valve 64, anesthetic hydraulic pressure sensor 65, heating plate 66, heating NTC 67, micro switch 68, main power supply 1 and backup power supply 2 of the anesthesia vaporizer body 6.

[0050] It should be noted that the nozzle infrared LED dual CPU monitoring and control, the nozzle infrared PT dual CPU monitoring, the anesthetic hydraulic sensor dual CPU monitoring, the nozzle dual CPU monitoring and control, the safety valve dual CPU monitoring and control, the heating plate dual CPU control, the heating NTC dual CPU monitoring, the micro switch dual CPU monitoring, the power supply dual CPU monitoring each other, the CPU has an external watchdog to prevent the CPU from running away or getting stuck, and the CPUs communicate with each other to provide timely alarm when the CPU is abnormal.

[0051] Furthermore, the main power supply 1 and the backup power supply 2 may be:

[0052] VDD36V, VDD12V and VDD7V;

[0053] VDD36V is used as the main power supply 1, and VDD12V is used as the backup power supply 2, which are connected to the heating plate 66 of the anesthesia vaporizer body 6 through the power supply switching switch 3;

[0054] VDD12V is used as the main power supply 1, and VDD7V is used as the backup power supply 2, which are connected to the nozzle 61, the nozzle infrared LED 62, the nozzle infrared PT 63, the safety valve 64, the heating NTC 67, the liquid level infrared LED 69, the liquid level infrared PT 70, the lighting LED 71, and the anesthetic hydraulic pressure sensor 83 of the anesthesia vaporizer body 6 through the power switch 3;

[0055] VDD7V is used as the main power supply 1 and VDD12V is used as the backup power supply 2 , which are connected to the main CPU 4 and the backup CPU 5 through the power supply switching switch 3 .

[0056] It should be noted that all devices are powered by dual power supplies. The two power supplies are independent of each other. If one power supply fails, it will automatically switch to the other power supply.

[0057] The main power supply 1 and the backup power supply 2 may be the same or different, and the main power supply 1 and the backup power supply 2 corresponding to different devices may be the same or different, which is not limited here.

[0058] Furthermore, it also includes:

[0059] The main CPU4 is connected to the debugging serial port via the TTL serial port;

[0060] The main CPU 4 is connected to a first watchdog 41 and an EEPROM 42;

[0061] The main CPU 4 is connected to the liquid level infrared LED 69 , the liquid level infrared PT 70 , the lighting LED 71 , and the indicator light 72 of the anesthesia vaporizer main body 6 .

[0062] Furthermore, it also includes:

[0063] The backup CPU 5 is connected to a second watchdog 51 and an atmospheric pressure sensor 52 .

[0064] Furthermore, it also includes:

[0065] Peripheral CPU8;

[0066] The peripheral CPU 8 is connected to a third watchdog 81;

[0067] The peripheral CPU 8 is connected to the main CPU 4 and the backup CPU 5 via the RS232 serial port;

[0068] The peripheral CPU 8 is connected to the evaporator drive valve 73, the evaporator fresh gas selection valve 74, the evaporator pressure relief valve 75, the evaporator air lock valve 76, the evaporator bypass valve 77, the drive pressure reserve 78, the tank in place detection 79 and the air lock in place detection 80 of the anesthesia evaporator main body 6.

[0069] Furthermore, it also includes:

[0070] Host VPM9;

[0071] The host VPM9 is equipped with an atmospheric pressure sensor;

[0072] The host VPM9 is connected to a fourth watchdog 91;

[0073] The host VPM9 is connected to the peripheral CPU8 via the RS232 serial port.

[0074] Furthermore, it also includes:

[0075] Host VCM10;

[0076] Host VCM10 is connected to host VPM9;

[0077] The host VCM 10 is connected to a fifth watchdog 101 , a serial port 102 , and an ultrasonic oxygen sensor 82 of the anesthesia vaporizer body 6 .

[0078] Furthermore, it also includes:

[0079] Main control board 11;

[0080] The main control board 11 is connected to the host VPM9 and the host VCM10 via the RS232 serial port.

[0081] In an embodiment of the present application, an anesthetic vaporizer is provided, which is powered by dual power supplies and monitors and controls important components of the anesthetic vaporizer main body through dual CPUs, including a nozzle, a nozzle infrared LED, a nozzle infrared PT, a safety valve, an anesthetic hydraulic sensor, a heating plate, a heating NTC, and a micro switch. Even if one of the power supplies or the CPU fails, an alarm can still be given in time to avoid the loss of anesthetic control, thereby solving the technical problems of missed alarms and loss of anesthetic control in electronic anesthetic vaporizers with single power supply and single CPU monitoring and control.

[0082] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An anesthetic vaporizer, characterized in that: include: Main power supply, backup power supply, power switch, main CPU, backup CPU and anesthesia vaporizer body; The main power supply and the backup power supply are connected to the main CPU, the backup CPU and the anesthesia vaporizer body through the power switch; The main CPU and the backup CPU are connected to each other for communication; The main CPU and the backup CPU simultaneously monitor and control the nozzle, nozzle infrared LED, nozzle infrared PT, safety valve, anesthetic hydraulic sensor, heating plate, heating NTC, micro switch, the main power supply and the backup power supply of the anesthesia vaporizer body.

2. The anesthetic vaporizer according to claim 1, characterized in that: The main power supply and the backup power supply may be: VDD36V, VDD12V and VDD7V; The main power supply and the backup power supply are connected to the nozzle, nozzle infrared LED, nozzle infrared PT, safety valve, heating plate, heating NTC, liquid level infrared LED, liquid level infrared PT, lighting LED, anesthetic hydraulic sensor, main CPU and backup CPU of the anesthesia vaporizer body through the power switching switch.

3. The anesthetic vaporizer according to claim 1, characterized in that: Also includes: The main CPU is connected to the debugging serial port via a TTL serial port; The main CPU is connected to a watchdog and an EEPROM; The main CPU is connected to the liquid level infrared LED, liquid level infrared PT, lighting LED and indicator light of the anesthesia vaporizer body.

4. The anesthetic vaporizer according to claim 1, characterized in that: Also includes: The backup CPU is connected to a watchdog and an atmospheric pressure sensor.

5. The anesthetic vaporizer according to claim 1, characterized in that: Also includes: Peripheral CPU; The peripheral CPU is connected to a watchdog; The peripheral CPU is connected to the main CPU and the backup CPU via an RS232 serial port; The peripheral CPU is connected to the evaporator drive valve, evaporator fresh gas selection valve, evaporator pressure relief valve, evaporator air lock valve, evaporator bypass valve, drive pressure reserve, tank in-place detection and air lock in-place detection of the anesthesia evaporator main body.

6. The anesthetic vaporizer according to claim 5, characterized in that: Also includes: Host VPM; The host VPM is provided with an atmospheric pressure sensor; The host VPM is connected to a watchdog; The host VPM is connected to the peripheral CPU via an RS232 serial port.

7. The anesthetic vaporizer according to claim 6, characterized in that: Also includes: Host VCM; The host VCM is connected to the host VPM; The host VCM is connected to a watchdog, a serial port and an ultrasonic oxygen sensor of the anesthesia vaporizer body.

8. The anesthetic vaporizer according to claim 7, characterized in that: Also includes: Main control board; The main control board is connected to the host VPM and the host VCM via an RS232 serial port.

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