Anesthesia machine power supply double protection device and method

Abstract

The present invention discloses a dual protection device and method for power supply of an anesthesia machine, the dual protection device for power supply of an anesthesia machine comprises a display screen module, a power board and a monitoring board arranged on a lower computer of the anesthesia machine; the monitoring board is communicatively connected with the display screen module; the display screen module and the monitoring board are electrically connected with the power board respectively, and the power board is controlled to supply power to the display screen module and the lower computer. In the present invention, a monitoring board is added to the lower computer of the anesthesia machine, and the power supply of the power board is controlled simultaneously with the display screen module. After the display screen module loses power, the monitoring board still controls the power supply of the power board, so as to ensure that the lower computer continues to be powered on and continues to ventilate, and maintain the patient's breathing and anesthesia state.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a dual protection device and method for an anesthesia machine power supply. Background Art

[0002] The function of the anesthesia machine is to deliver oxygen and anesthetics to the patient during surgery to maintain the patient's breathing and anesthesia state. The current design of the display screen on the anesthesia machine mainly takes into account ergonomics, and the screen can be rotated up and down, left and right. In addition, the display screen is an independent module, which is connected to the lower computer through a screen cable. The display screen of different sizes can be easily replaced at any time to meet the customer's needs for screen size.

[0003] In addition, considering power-off preservation, a soft shutdown is used to save the data before shutting down. The power on and off is also controlled by the power on and off button on the display.

[0004] The existing anesthesia machine display screen has the following problems: if the screen cable is not connected reliably or is loosened by external force, the power supply of the display screen cannot be supplied normally, causing the screen to turn black and the system to shut down automatically, posing a safety risk. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide an anesthesia machine power supply double protection device and anesthesia machine power supply double protection method for ensuring that the lower computer continues to be powered and work when the display screen module is abnormal.

[0006] The technical solution adopted by the present invention to solve its technical problem is: to provide a double protection device for the power supply of an anesthesia machine, including a display screen module, a power supply board and a monitoring board arranged on a lower computer of the anesthesia machine; the monitoring board is communicatively connected with the display screen module; the display screen module and the monitoring board are respectively electrically connected with the power supply board, and the power supply board is controlled to supply power to the display screen module and the lower computer.

[0007] Preferably, the display screen module is provided with a switch key connected to the power board.

[0008] Preferably, the display screen module is connected to the power board via a screen cable.

[0009] Preferably, the power board includes a power control circuit;

[0010] The power control circuit includes a first connection port and a second connection port respectively connected to the monitoring board and the display screen module, an output port connected to the power board, and a MOS tube and a transistor connected in sequence between the first connection port and the second connection port and the output port.

[0011] Preferably, the first connection port is connected to the gate of the MOS tube Q12 through a first resistor R83, and the second connection port is connected to the gate of the MOS tube Q12 through a second resistor R48; the gate of the MOS tube Q12 is connected to its source through a third resistor R63, the source of the MOS tube Q12 is grounded, and the source of the MOS tube Q12 is also connected to the collector of the triode Q11 through a fourth resistor R49; the drain of the MOS tube Q12 is connected to the base of the triode Q11 through a fifth resistor R46, and the collector of the triode Q11 is connected to the output port through a sixth resistor R47;

[0012] The base of the transistor Q11 is connected to the emitter of the transistor Q11 through the seventh resistor R44, and the emitter of the transistor Q11 is connected to the power supply VUSE through the eighth resistor R45.

[0013] Preferably, the dual protection device for the power supply of the anesthesia machine further comprises a buzzer connected to the monitoring board; after the monitoring board is disconnected from the display screen module, the buzzer is controlled to send out an alarm signal.

[0014] Preferably, the buzzer is arranged on a monitoring board.

[0015] The present invention also provides a dual protection method for anesthesia machine power supply, comprising:

[0016] When the anesthesia machine is turned on, the display screen module and the monitoring board simultaneously output a high level to the power board, and the power board supplies power to the display screen module and the lower computer;

[0017] After the display screen module loses power, the monitoring board keeps outputting a high level to the power board, and the power board supplies power to the lower computer, and the lower computer works normally.

[0018] Preferably, the display screen module is provided with a switch key connected to the power board; the anesthesia machine is turned on by the switch key; wherein, after operating the switch key, the power board supplies power to the CPU of the display screen module, the CPU of the display screen module outputs a high level to the power board, and the power board supplies power to the display screen module and the monitoring board;

[0019] The monitoring board outputs a high level to the power board after being powered.

[0020] Preferably, the display screen module is communicatively connected to a monitoring board; after the display screen module loses power, the monitoring board interrupts the communication connection with the display screen module and controls a buzzer to send out an alarm signal.

[0021] The beneficial effects of the present invention are as follows: a monitoring board is added to the lower computer of the anesthesia machine to control the power supply of the power board simultaneously with the display screen module. After the display screen module loses power, the monitoring board still controls the power supply of the power board to ensure that the lower computer continues to be powered on and continues to ventilate, thereby maintaining the patient's breathing and anesthesia state.

[0022] In addition, a buzzer is set to sound an alarm to inform the anesthesiologist that an abnormality has occurred in the display screen module. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0024] Figure 1 It is a connection block diagram of a dual protection device for an anesthesia machine power supply according to an embodiment of the present invention;

[0025] Figure 2 The present invention is a monitoring circuit diagram of a monitoring board in a dual protection device for an anesthesia machine power supply according to an embodiment of the present invention. DETAILED DESCRIPTION

[0026] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, specific embodiments of the present invention are now described in detail with reference to the accompanying drawings.

[0027] like Figure 1 As shown, a dual protection device for power supply of an anesthesia machine according to an embodiment of the present invention comprises a display screen module 10, a power board 30 arranged on a lower computer 20 of the anesthesia machine, and a monitoring board 40. The monitoring board 40 is connected to the display screen module 10 for communication; the display screen module 10 and the monitoring board 40 are respectively connected to the power board 30, and the power board 30 is controlled to supply power to the display screen module 10 and the lower computer 20.

[0028] The display screen module 10 is also a display screen of the anesthesia machine, which is used to display various anesthesia parameters, states, etc., and the display screen of the corresponding size can be replaced according to the required size. The display screen module 10 is connected to the power board 30 on the lower computer 20 through the screen line 11. The display screen module 10 is provided with a switch key connected to the power board 30, and the anesthesia machine is turned on by operating the switch key.

[0029] The power board 30 is a DC power board including a power control circuit.

[0030] like Figure 2 As shown, the power control circuit includes a first connection port, a second connection port, an output port, a MOS tube Q12 and a triode Q11 which are sequentially connected between the first connection port, the second connection port and the output port.

[0031] Combination Figure 1 , 2The first connection port and the second connection port are connected to the CPU of the monitoring board 40 and the CPU of the display screen module 10 respectively.

[0032] Specifically, the first connection port is connected to the gate of the MOS tube Q12 through the first resistor R83, and the second connection port is connected to the gate of the MOS tube Q12 through the second resistor R48. The gate of the MOS tube Q12 is connected to the source of the MOS tube Q12 through the third resistor R63, and the source of the MOS tube Q12 is grounded GND; the source of the MOS tube Q12 is also connected to the collector of the triode Q11 through the fourth resistor R49. The drain of the MOS tube Q12 is connected to the base of the triode Q11 through the fifth resistor R46, and the collector of the triode Q11 is connected to the output port through the sixth resistor R47. The base of the triode Q11 is connected to the emitter of the triode Q11 through the seventh resistor R44, and the emitter is connected to the power supply VUSE through the eighth resistor R45.

[0033] In this embodiment, the model of the MOS tube Q12 is 2N7002K; the model of the transistor Q11 is MMBT3906.

[0034] Furthermore, the dual protection device for the power supply of the anesthesia machine of the present invention further includes a buzzer (not shown) connected to the monitoring board 40; the buzzer is arranged on the monitoring board 40. When the display screen module 10 loses power, the communication with the monitoring board 40 is interrupted, and the monitoring board 40 controls the buzzer to send an alarm signal to prompt the anesthesiologist that an abnormal situation such as power failure of the display screen module 10 occurs, so that measures can be taken to solve the abnormality in a timely manner.

[0035] The anesthesia machine power supply dual protection method implemented by the anesthesia machine power supply dual protection device of the present invention may include:

[0036] When the anesthesia machine is turned on, the display screen module 10 and the monitoring board 40 simultaneously output a high level to the power board 30, and the power board 30 supplies power to the display screen module 10 and the lower computer 20;

[0037] After the display screen module 10 loses power (such as the screen cable 11 falls off), the monitoring board 40 keeps outputting a high level to the power board 30, and the power board 30 supplies power to the lower computer 20, and the lower computer 20 works normally.

[0038] Among them, the display screen module 10 is provided with a switch key connected to the power board 30; the anesthesia machine is turned on by the switch key. After the switch key is operated, the power board 30 supplies power to the CPU of the display screen module 10, and the CPU of the display screen module 10 outputs a high level to the power board 30 through the power control circuit, and the power board 30 supplies power to the display screen module 10 and the monitoring board 40. After the monitoring board 40 is powered, it outputs a high level to the power board 30 through the power control circuit.

[0039] After the display screen module 10 loses power due to the screen cable 11 falling off or the like, the monitoring board 40 interrupts the communication connection with the display screen module 10 and controls the buzzer to send out an alarm signal.

[0040] Combination Figure 1 , 2 Specifically, when the anesthesia machine is turned on normally, the CPU of the display screen module 10 controls the second connection port to output a high level through POW_EN, so that the output port outputs a high level to the power board 30, and the power board 30 normally supplies power to the anesthesia machine (including supplying power to the display screen module 10 and the lower computer 20). After the lower computer 20 is powered on, the monitoring CPU of the monitoring board 40 controls the first connection port to output a high level through FAN. At this time, the two connection ports simultaneously control EN to output a high level. When the screen line 11 of the display screen module 10 accidentally or artificially falls off, causing the display screen module 10 to lose power, the CPU of the display screen module 10 cannot make POW_EN output a high level, and stops communicating with the monitoring board 40 on the lower computer 20. At this time, the monitoring CPU of the monitoring board 40 can still control FAN to output a high level, and the power board 30 normally supplies power to the anesthesia machine, which will not affect the normal ventilation work of the lower computer 20 of the anesthesia machine.

[0041] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A dual protection device for anesthesia machine power supply, characterized in that: It includes a display screen module, a power board and a monitoring board arranged on the lower computer of the anesthesia machine; the monitoring board is communicatively connected with the display screen module; the display screen module and the monitoring board are electrically connected with the power board respectively, and the power board is controlled to supply power to the display screen module and the lower computer; The power board is a DC power board, which includes a power control circuit; the power control circuit includes a first connection port and a second connection port connected to the monitoring board and the display screen module respectively, an output port, and a MOS tube Q12 and a triode Q11 connected between the first connection port and the second connection port and the output port in sequence; The first connection port is connected to the gate of the MOS transistor Q12 through the first resistor R83, and the second connection port is connected to the gate of the MOS transistor Q12 through the second resistor R48; the gate of the MOS transistor Q12 is connected to its own source through the third resistor R63, the source of the MOS transistor Q12 is grounded, and the source of the MOS transistor Q12 is also connected to the collector of the triode Q11 through the fourth resistor R49; the drain of the MOS transistor Q12 is connected to the base of the triode Q11 through the fifth resistor R46, and the collector of the triode Q11 is connected to the output port through the sixth resistor R47; The base of the transistor Q11 is connected to the emitter of the transistor Q11 through the seventh resistor R44, and the emitter of the transistor Q11 is connected to the power supply VUSE through the eighth resistor R45.

2. The double protection device for power supply of anesthesia machine according to claim 1, characterized in that: The display screen module is provided with a switch key connected to the power board.

3. The double protection device for anesthesia machine power supply according to claim 1, characterized in that: The display screen module is connected to the power board via a screen cable.

4. The double protection device for power supply of an anesthesia machine according to any one of claims 1 to 3, characterized in that: The dual protection device for the power supply of the anesthesia machine also includes a buzzer connected to the monitoring board; after the monitoring board interrupts communication with the display screen module, the buzzer is controlled to send out an alarm signal.

5. The double protection device for power supply of anesthesia machine according to claim 4, characterized in that: The buzzer is arranged on the monitoring board.

6. A method for dual protection of anesthesia machine power supply according to any one of claims 1 to 5, characterized in that: include: When the anesthesia machine is turned on, the display screen module and the monitoring board simultaneously output a high level to the power board, and the power board supplies power to the display screen module and the lower computer; After the display screen module loses power, the monitoring board keeps outputting a high level to the power board, and the power board supplies power to the lower computer, and the lower computer works normally.

7. The method for dual protection of anesthesia machine power supply according to claim 6, characterized in that: The display screen module is provided with a switch key connected to the power board; the anesthesia machine is turned on by the switch key; wherein, after the switch key is operated, the power board supplies power to the CPU of the display screen module, the CPU of the display screen module outputs a high level to the power board, and the power board supplies power to the display screen module and the monitoring board; The monitoring board outputs a high level to the power board after being powered.

8. The dual protection method for anesthesia machine power supply according to claim 6, characterized in that: The display screen module is connected to the monitoring board in communication; after the display screen module loses power, the monitoring board interrupts the communication connection with the display screen module and controls the buzzer to send out an alarm signal.

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