Testing device and method for inhalation type anesthesia equipment

Abstract

The invention relates to the field of medical instrument testing, in particular to a testing device and method for respiratory anesthesia equipment, and the device and method are characterized in that sine (half) wave airflow conforming to a testing standard is introduced into equipment to be tested for detection. A programmable controller in the control unit is adopted to drive the gas generation unit, the problems of noise and vibration existing in tests of an existing medical breathing machine and other breathing anesthesia equipment are solved, the starting and stopping process is more stable, and meanwhile higher precision is obtained. The functions of the modules are relatively independent; and each module has replaceability, and a single module can be modified, replaced or upgraded under the condition that other modules are not influenced, so that the flexibility is high, and the implementation is easier. According to the invention, the test information is fed back and output by collecting the test gas in the test process to participate in subsequent observation and adjustment, so that subsequent observation and adjustment are facilitated, and the test precision and reliability are improved.

Description

Technical Field

[0001] The present invention relates to the field of medical device testing, in particular to a testing device and method for inhalation anesthesia equipment, which is to pass a sinusoidal (half) wave airflow that meets the testing standard into the equipment to be tested for testing. Background Art

[0002] The inhalation anesthesia system has the advantages of simple operation, easy control, little impact on the patient's cardiopulmonary function, and fast recovery. It is currently widely used in medical fields such as surgical anesthesia, emergency treatment and pain management. With the continuous development of medical technology, the application of inhalation anesthesia technology in large and medium-sized hospitals has steadily increased. Testing the system not only helps to improve the reliability and availability of the equipment, but also can maximize the safety of patients' lives.

[0003] During the test of the respiratory anesthesia system, the test equipment needs to simulate the patient's normal respiratory frequency, tidal volume, respiratory impedance and other related characteristics, and pass the airflow into the inhalation anesthesia device to be tested for testing. According to the national standard YY 0635.1-2013, to test the pressure-flow characteristics of the inhalation anesthesia system, the test equipment needs to generate a bidirectional sinusoidal airflow with a frequency of 20 times / min and a tidal volume of 1L. The currently commonly used test gas source is directly simulated by the mechanical ventilation of the ventilator itself, which does not produce a standard sinusoidal airflow, and the test results obtained have large errors. The "Standard Sine Wave Airflow Generator for Testing of Ventilators and Anesthesia Systems" disclosed in the Chinese patent application number 201310047990.X drives the crankshaft through the uniform rotation of the motor, drives the control piston to reciprocate in the cylinder, and generates a sinusoidal airflow through the bidirectional stroke of the piston. Although this design can generate a sinusoidal airflow that meets the test requirements, it has unavoidable noise and vibration, and the mechanical parts are easy to wear, and it is difficult to modify the tidal volume. Summary of the invention

[0004] The purpose of the present invention is to provide a device and method for testing inhalation anesthesia equipment to solve the problems of noise, vibration, easy wear of mechanical parts, difficulty in modifying tidal volume, etc. existing in the testing of existing medical ventilators and other respiratory anesthesia equipment.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A testing device for inhalation anesthesia equipment, comprising: a control system unit, a gas generating unit, and a gas pipeline unit;

[0007] The control system unit generates a first control signal and a second control signal according to demand, and generates a second control signal according to a test gas flow parameter provided by the sensor;

[0008] The gas generating unit comprises a driving module and a gas collecting module; the driving module receives a first control signal provided by the control unit and transmits it to the gas collecting module; the gas collecting module generates a test gas that meets the test requirements according to the received first control signal and transmits it to the gas pipeline system;

[0009] The gas pipeline unit includes a gas pipeline system, a sensor module and a pipeline control module; the gas pipeline system receives the test gas provided by the gas collection module and transmits it to the device to be tested for testing; the sensor module receives the second control signal provided by the system control unit, and under the control of the second control signal, collects the test gas flow parameters in the gas pipeline system during the test process, and transmits the collected test gas flow parameters to the system control unit and the pipeline control module, and the test gas flow parameters include peak flow rate, waveform, frequency and other information;

[0010] The pipeline control module receives a third control signal provided by the control system unit, and under the control of the third control signal, steplessly adjusts the tidal volume and respiratory rate of the test gas flow in the gas pipeline system during the test process.

[0011] Furthermore, the control system unit includes a power supply and a screen; the power supply provides the test device with constant voltage alternating current required for operation to drive the entire test equipment to operate; the screen is provided with a carrier for displaying human-computer interaction, and the carrier for human-computer interaction includes a programmable controller; the programmable controller is provided with test management software for generating a first control signal and a second control signal according to test requirements, generating a third control signal according to the test gas flow parameters provided by the sensor, test data access and test process monitoring.

[0012] Furthermore, the tidal volume, respiratory rate, test switch, test reset, sine wave / half-sine wave options, gas flow parameters, test process monitoring, test data access, etc. required by the device under test are all set through the test management software.

[0013] A method for testing an inhalation anesthesia equipment comprises the following steps:

[0014] Step 1, initializing the above-mentioned inhalation anesthesia equipment testing device;

[0015] Step 2: Set the parameters of the device to be tested according to the test requirements. The parameters of the device to be tested include: tidal volume required for the test gas, respiratory rate, and sine wave / half sine wave options;

[0016] Step 3, introducing gas, and using a programmable controller to generate a first control signal and a second control signal according to test requirements; the first control signal is a test start instruction or a test end instruction, and the second control signal is a collection instruction;

[0017] Step 4: driving the gas collection module to generate test gas under the control of the test start instruction;

[0018] Step 5: transmitting the test gas to the device to be tested through the gas pipeline system for testing, and collecting the test gas flow parameters during the test process under the control of the second control signal;

[0019] Step 6: Generate a third control signal according to the test gas airflow parameter, and steplessly adjust the tidal volume and respiratory frequency of the test gas according to the third control information so that they always meet the test requirements;

[0020] Step 7: When the test meets the preset test conditions, the test device is stopped under the control of the test end instruction.

[0021] Furthermore, the test method for inhalation anesthesia equipment also includes processing of operating failures in the test setting during the test process, and the processing method of the operating failure is:

[0022] When the collected test gas flow parameters are abnormal, it is determined that the test equipment has an operating failure. At this time, an alarm prompt is given through the programmable controller.

[0023] Furthermore, the method of step 6 for infinitely adjusting the tidal volume and respiratory rate of the test gas according to the third control signal is:

[0024] Among the collected test gas flow parameters, the flow waveform expression is:

[0025]

[0026] Among them, d is the inner diameter of the gas collection module, L is the stroke of the driving module under the control of the programmable controller, and T is the operation cycle of the control module under the control of the programmable controller; based on the flow waveform expression, it can be determined that by controlling the values ​​of the two parameters L and T through the programmable controller, the tidal volume and respiratory rate can be adjusted steplessly.

[0027] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0028] The present invention provides a device and method for testing inhalation anesthesia equipment.

[0029] In the device, the programmable controller in the control unit is used to drive the gas generating unit, which solves the noise and vibration problems existing in the testing of existing medical ventilators and other respiratory anesthesia equipment, and the start and stop process is smoother; at the same time, the intelligence of the programmable controller itself also achieves higher precision. The functions of each module are relatively independent; and each module is replaceable. A single module can be modified, replaced or upgraded without affecting other modules, which is highly flexible and easier to implement.

[0030] In terms of method, it can accurately detect the peak flow rate, waveform, frequency and other information of the sinusoidal gas, and generate a control signal by collecting the test gas flow during the test process, so as to participate in subsequent observation and adjustment, and output the test information feedback, which is convenient for subsequent observation and adjustment, and improves the accuracy and reliability of the test. Compared with the sinusoidal airflow generated by other test methods, the present invention can realize the modification of tidal volume and respiratory frequency, and is suitable for different test conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 1 is a schematic diagram of the overall structure of an inhalation anesthesia equipment testing device used in an embodiment;

[0032] Figure 2 is a test flow chart of an inhalation anesthesia equipment test device according to an embodiment;

[0033] Figure 3 The present invention is a schematic diagram of the test airflow direction of an inhalation anesthesia equipment test device according to an embodiment. Specific implementation methods

[0035] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme 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. It should be understood that the drawings in the present application only serve the purpose of explanation and description and are not used to limit the scope of protection of the present application. In addition, it should be understood that the schematic drawings are not drawn in real proportion. The flowchart used in this application shows the operations implemented according to some embodiments of the present application. It should be understood that the operations of the flowchart can be implemented out of sequence, and the steps without logical context can be reversed in order or implemented simultaneously. In addition, those skilled in the art can add one or more other operations to the flowchart under the guidance of the content of the present application, or remove one or more operations from the flowchart.

[0036] In addition, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0037] It should be noted that the term "comprising" will be used in the embodiments of the present application to indicate the existence of the features declared thereafter, but does not exclude the addition of other features.

[0038] like Figure 1 As shown, this embodiment provides a testing device for inhalation anesthesia equipment, including: a control system unit, a gas generating unit, and a gas pipeline unit.

[0039] The control system unit generates a first control signal and a second control signal according to the requirements, and generates a second control signal according to the test gas flow parameter provided by the sensor. The control system unit of this embodiment includes a power supply and a screen. The power supply provides the constant voltage AC power required for the test device to drive the entire test device to operate. A carrier for displaying human-computer interaction is provided on the screen, and the carrier for human-computer interaction includes a programmable controller. The programmable controller is provided with a test management software, which can set the tidal volume, respiratory rate, test switch, test reset, sine wave / half sine wave options, gas flow parameters, test process monitoring, test data access, etc. required for the device to be tested. The test input for different working conditions can be completed by modifying it. The programmable controller is used to generate a first control signal and a second control signal according to the test requirements, and generate a third control signal according to the test gas flow parameter provided by the sensor, wherein the first control signal is a test start instruction or a test end instruction, and the second control signal is an acquisition instruction, test data access and test process monitoring.

[0040] The gas generating unit includes a driving module and a gas collecting module; the driving module receives a first control signal provided by the control unit and transmits it to the gas collecting module; the gas collecting module generates a test gas that meets the test requirements according to the received first control signal and transmits it to the gas pipeline system. In this embodiment, in order to facilitate the connection between the driving module and the gas collecting module, an additional connecting module is provided, one end of the connecting module is connected to the driving module, and the other end is connected to the gas collecting module.

[0041] The gas pipeline unit includes a gas pipeline system, a sensor module and a pipeline control module; the gas pipeline system receives the test gas provided by the gas collection module and transmits it to the device to be tested for testing; the sensor module receives a second control signal provided by the system control unit, and under the control of the second control signal, collects the test gas flow parameters in the gas pipeline system during the test process, and transmits the collected test gas flow parameters to the system control unit and the pipeline control module, and the test gas flow parameters include peak flow rate, waveform, frequency and other information;

[0042] The pipeline control module receives a third control signal provided by the control system unit, and under the control of the third control signal, steplessly adjusts the tidal volume and respiratory rate of the test gas flow in the gas pipeline system during the test process.

[0043] Figure 3 The figure shows the flow direction of the test gas flow for the inhalation anesthesia equipment test device. In the figure, the test gas flow is first sucked from the atmosphere by the gas collection module of the gas generation unit, and the test gas is passed into the gas pipeline system through the drive module under the control of the control system unit. After being modulated by the pipeline control module, it is sent to the sensor module for signal collection, and then output by the gas output interface and sent to the device to be tested for detection.

[0044] This embodiment also provides a method for testing an inhalation anesthesia equipment, such as Figure 2 As shown, the following steps are included:

[0045] Step 1: Start the power supply and reset the above-mentioned inhalation anesthesia equipment testing device to put the entire system in an initialized state.

[0046] Step 2: In the test management software provided in the programmable controller, set the parameters of the device to be tested according to the test requirements. The parameters of the device to be tested include: the tidal volume required for the test gas, the respiratory rate, and the sine wave / half-sine wave options, and then introduce the gas.

[0047] Taking the test method mentioned in the national standard YY 0635.1-2013 "Inhalation Anesthesia System Part 1: Anesthesia Breathing System" as an example, the test gas frequency of this embodiment is 20 times / min, the tidal volume is 1L, and when the gas is started to be introduced, the test gas flow waveform collected by the sensor module is:

[0048]

[0049] Step 3: Use a programmable controller to generate a first control signal and a second control signal according to test requirements; the first control signal is a test start instruction or a test end instruction, and the second control signal is a collection instruction.

[0050] Step 4: The driving module receives the test start instruction, and under the control of the test start instruction, drives the gas collection module through the connection module to sequentially absorb or discharge the test airflow that meets the requirements at the set breathing frequency according to the instruction;

[0051] Step 5: transmit the test gas to the device to be tested through the gas pipeline system for detection, and collect the test gas flow parameters during the test process under the control of the second control signal; Step 6: generate a third control signal according to the test gas flow parameters, and steplessly adjust the tidal volume and respiratory frequency of the test gas according to the third control information so that it always meets the test requirements; The method of steplessly adjusting the tidal volume and respiratory frequency of the test gas according to the third control information in this embodiment is:

[0052] Assume that the test gas flow waveform expression during the acquisition test is:

[0053]

[0054] Wherein, d is the inner diameter of the gas collection module, L is the stroke of the driving module under the control of the programmable controller, and T is the operation cycle of the control module under the control of the programmable controller.

[0055] Based on this expression, it can be seen that by controlling the values ​​of the two parameters L and T through a programmable controller, the tidal volume and respiratory rate can be adjusted steplessly.

[0056] Step 7: When the test meets the preset test conditions, the test device is stopped under the control of the test end instruction.

[0057] The present embodiment of the test method for inhalation anesthesia equipment also includes processing of operational failures in the test setting during the test process. The method for processing the operational failures is: when the collected test gas flow parameters are abnormal, it is determined that the test equipment has an operational failure. At this time, an alarm prompt is given through the programmable controller.

[0058] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A testing device for inhalation anesthesia equipment, It is characterized in that include: A control system unit, a gas generation unit, and a gas piping unit; The control system unit generates a first control signal and a second control signal according to demand, and generates a second control signal according to a test gas flow parameter provided by the sensor; The gas generating unit comprises a driving module and a gas collecting module; the driving module receives a first control signal provided by the control unit and transmits it to the gas collecting module; the gas collecting module generates a test gas that meets the test requirements according to the received first control signal and transmits it to the gas pipeline system; The gas pipeline unit includes a gas pipeline system, a sensor module and a pipeline control module; the gas pipeline system receives the test gas provided by the gas collection module and transmits it to the device to be tested for testing; the sensor module receives a second control signal provided by the system control unit, and under the control of the second control signal, collects the test gas flow parameters in the gas pipeline system during the test process, and transmits the collected test gas flow parameters to the system control unit and the pipeline control module, and the test gas flow parameters include peak flow rate, waveform, and frequency information; The pipeline control module receives a third control signal provided by the control system unit, and under the control of the third control signal, steplessly adjusts the tidal volume and respiratory rate of the test gas flow in the gas pipeline system during the test process.

2. A testing device for inhalation anesthesia equipment according to claim 1, Features: The control system unit includes a power supply and a screen; the power supply provides the test device with constant voltage alternating current required for operation to drive the entire test equipment to operate; the screen is provided with a carrier for displaying human-computer interaction, and the carrier for human-computer interaction includes a programmable controller; the programmable controller is provided with test management software for generating a first control signal and a second control signal according to test requirements, generating a third control signal according to the test gas flow parameters provided by the sensor, test data access, and test process monitoring.

3. A testing device for inhalation anesthesia equipment according to claim 2, Features: The tidal volume, respiratory rate, test switch, test reset, sine wave / half sine wave options, gas flow parameters, test process monitoring, test data access, etc. required for the device under test are all set through the test management software.

4. A method for testing inhalation anesthesia equipment, It is characterized in that The following steps are involved: Step 1, initializing the inhalation anesthesia equipment testing device as described in claims 1 to 3; Step 2: Set the parameters of the device to be tested according to the test requirements. The parameters of the device to be tested include: tidal volume required for the test gas, respiratory rate, and sine wave / half sine wave options; Step 3, introducing gas, and using a programmable controller to generate a first control signal and a second control signal according to test requirements; the first control signal is a test start instruction or a test end instruction, and the second control signal is a collection instruction; Step 4: driving the gas collection module to generate test gas under the control of the test start instruction; Step 5: transmitting the test gas to the device to be tested through the gas pipeline system for testing, and collecting the test gas flow parameters during the test process under the control of the second control signal; Step 6: Generate a third control signal according to the test gas airflow parameter, and steplessly adjust the tidal volume and respiratory rate of the test gas according to the third control information so that they always meet the test requirements; Step 7: When the test meets the preset test conditions, the test device is stopped under the control of the test end instruction.

5. A method for testing inhalation anesthesia equipment according to claim 4, It is characterized in that The inhalation anesthesia equipment testing method also includes processing of operating failures in the test setting during the test process, and the processing method of the operating failure is: When the collected test gas flow parameters are abnormal, it is determined that the test equipment has an operating failure. At this time, an alarm prompt is given through the programmable controller.

6. A method for testing inhalation anesthesia equipment according to claim 4, It is characterized in that The method of step 6 for infinitely adjusting the tidal volume and respiratory rate of the test gas according to the third control signal is: Among the collected test gas flow parameters, the flow waveform expression is: Among them, d is the inner diameter of the gas collection module, L is the stroke of the driving module under the control of the programmable controller, and T is the operation cycle of the control module under the control of the programmable controller; based on the flow waveform expression, it can be determined that by controlling the values ​​of the two parameters L and T through the programmable controller, the tidal volume and respiratory rate can be adjusted steplessly.

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