WO2021068138A9 - 一种麻醉通气设备及其信息显示系统及信息显示方法 - Google Patents
一种麻醉通气设备及其信息显示系统及信息显示方法 Download PDFInfo
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- WO2021068138A9 WO2021068138A9 PCT/CN2019/110208 CN2019110208W WO2021068138A9 WO 2021068138 A9 WO2021068138 A9 WO 2021068138A9 CN 2019110208 W CN2019110208 W CN 2019110208W WO 2021068138 A9 WO2021068138 A9 WO 2021068138A9
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
Definitions
- the invention relates to the technical field of medical equipment, in particular to an anesthesia machine, in particular to an anesthesia ventilation device, and an information display system and an information display method of the anesthesia ventilation device.
- the function of the anesthesia machine is to perform inhalation anesthesia and ventilation support for the patient during the operation to adjust the patient's level of consciousness and pain level, while maintaining the patient's airway patency.
- Anesthesia machines usually have two breathing assistance devices: a ventilator and a manual bladder.
- the ventilator is used for machine-controlled ventilation
- the manual bladder is used for manual ventilation.
- breathing assistance devices patients can maintain airway patency and improve ventilation and oxygen. Combine, prevent the body from hypoxia and carbon dioxide accumulation.
- the induction phase before the patient is intubated during the operation it is usually necessary to assist the patient in manual mode; during the maintenance phase of the anesthesia, the patient loses the consciousness of spontaneous breathing, and usually needs to switch the anesthesia machine to the mechanical mode to automatically perform the operation on the patient.
- Breathing assistance After the operation is completed, the doctor can use the manual skin to assist the patient's breathing. After the patient has sufficient spontaneous breathing, he can also allow the patient to breathe spontaneously in manual mode.
- the present invention mainly provides an anesthesia ventilation device, and an information display system and information display method of the anesthesia ventilation device.
- the information display method facilitates the user to observe the current working mode of the anesthesia machine and facilitates the user to obtain the patient's breathing state information.
- an embodiment provides an information display method for an anesthesia ventilation device.
- the ventilation modes in which the anesthesia ventilation device provides ventilation support to a patient include a machine-controlled ventilation mode and a manual ventilation mode, and the method includes:
- the obtained ventilation mode information is output to the display interface for display, and the preset graphics are used on the display interface to distinguish different working modes.
- an embodiment provides an information display method for an anesthesia ventilation device.
- the ventilation modes for the anesthesia ventilation device to provide ventilation support to a patient include a machine-controlled ventilation mode and a manual ventilation mode, and the method includes:
- a preset graphic is displayed on the display interface.
- an embodiment provides an information display system for displaying the current ventilation mode of an anesthesia ventilation device, and the information display system includes:
- the equipment information acquisition unit acquires the ventilation mode information of the anesthesia ventilation equipment to provide ventilation support to the patient;
- the display unit outputs the acquired ventilation mode information to the display interface for display, and uses preset graphics to distinguish different working modes on the display interface.
- an embodiment provides an information display system for displaying the current working mode of an anesthesia ventilation device, and the information display system includes:
- Equipment information acquisition unit for acquiring ventilation mode information for anesthesia ventilation equipment to provide ventilation support to the patient
- Respiratory parameter acquisition unit for acquiring respiratory information of the patient
- the display unit is used to display a preset graphic on the display interface when the anesthesia ventilation device switches to the manual ventilation mode or exits the machine-controlled ventilation mode.
- anesthesia ventilation device in an embodiment, including:
- Air source interface used to connect an external air source
- Breathing circuit is used to connect the air source interface with the patient's respiratory system to deliver the gas provided by the air source to the patient and receive the gas exhaled by the patient;
- Anesthesia output device used to mix the stored anesthetic with the input gas and output it to the breathing circuit
- a breathing assist device for providing ventilation support to the patient through a breathing circuit, controlling the delivery of gas provided by the gas source, gas exhaled by the patient, and anesthetic-mixed gas output by the anesthesia output device to the patient, the breathing assisting device including a machine control Ventilation module and manual ventilation module;
- a sensor which is arranged in the breathing circuit and is used to detect airflow information in the breathing circuit
- a processor the processor includes a control unit, an arithmetic unit, and the above-mentioned information display system, the control unit is used to connect a machine-controlled ventilation module or a manual ventilation module to the breathing circuit according to a set ventilation mode; the arithmetic unit It is used to calculate according to the airflow information output by the sensor to obtain the patient's breathing information.
- anesthesia ventilation device in an embodiment, including:
- Memory used to store programs
- the processor is configured to execute the program stored in the memory to implement the above method.
- an embodiment provides a computer-readable storage medium, including a program, which can be executed by a processor to implement the above-mentioned method.
- the current working mode of the anesthesia ventilation device can be clearly and intuitively displayed, which is also more conducive to the acquisition of subsequent breathing information.
- Figure 1a and Figure 1b are two schematic diagrams showing the working status display interface of the anesthesia ventilation device
- Figure 2 is a schematic diagram of the structure of the anesthesia ventilation device when the patient inhales through the manual ventilation mode
- Figure 3 is a schematic diagram of the structure of the anesthesia ventilation device when the patient exhales through the manual ventilation mode
- Figure 4 is a flowchart of an anesthesia information display method in an embodiment
- Figure 5 is a schematic diagram of a preset graphic in an embodiment
- FIG. 6 is a schematic diagram of another preset pattern in the embodiment of FIG. 5;
- Figure 7 is a flow chart of the anesthesia ventilation device displaying the patient's breathing state in an embodiment
- FIG. 8 is a diagram showing the morphological change of the preset pattern when the patient breathes in an embodiment
- Fig. 9 is a morphological change diagram of another preset pattern in the embodiment of Fig. 8;
- Figure 10 is a flow chart of an anesthesia ventilation device displaying the tidal volume of a patient in an embodiment
- Figure 11 is a flow chart of the anesthesia ventilation device displaying the airflow velocity of the patient's breathing in an embodiment
- Figure 12a is a schematic diagram of a combination of a preset graphic and a first graphic element when the patient inhales in an embodiment
- Figure 12b is a schematic diagram of a combination of a preset graphic and a first graphic element when the patient inhales in an embodiment
- FIG. 13 is a schematic diagram of a preset pattern in another embodiment
- FIG. 14 is a schematic diagram of another preset pattern in the embodiment of FIG. 13;
- Fig. 15 is a diagram showing the morphological change of the preset pattern when the patient breathes in another embodiment.
- Figure 16 is a flow chart of the anesthesia ventilation device displaying the amount of gas leakage in an embodiment
- FIG. 17 is a schematic diagram of a combination of a preset graphic and a second graphic element when the gas leaks in an embodiment
- Fig. 18 is a schematic diagram of a combination of a preset graphic and a third graphic element when the gas leaks in an embodiment.
- connection and “connection” mentioned in this application include direct and indirect connection (connection) unless otherwise specified.
- the ventilation modes of anesthesia ventilation equipment to provide patients with ventilation support include machine-controlled ventilation mode and manual ventilation mode. Different surgical stages have different requirements for respiratory assistance. Therefore, it is necessary to set the anesthesia ventilation equipment in an appropriate ventilation mode, for example, When the user (such as medical staff) needs to manually ventilate the patient by squeezing the airbag, it is necessary to ensure that the anesthesia ventilation device has been switched to the manual ventilation mode to ensure that the manual ventilation module and the breathing circuit are connected, so that the user can manually squeeze the airbag. The airflow can reach the patient. Therefore, when a user performs manual ventilation on a patient, it is necessary to confirm whether the anesthesia ventilation device is set in a manual ventilation mode. For example, some signs can be used to indicate the ventilation mode currently set by the anesthesia ventilation device.
- the switch 10 can be identified by the switch of the machine-controlled ventilation mode and the manual ventilation mode.
- the switch 10 has an indicator pin 11, and when the switch 10 is turned to make the indicator pin 11 point to manual
- the ventilation indicator 13 indicates that the anesthesia machine is currently in manual working mode.
- the switch 10 is rotated to make the indicator needle 11 point to the machine-controlled ventilation indicator 12, it indicates that the anesthesia machine is currently in mechanical working mode.
- the switch 10 may be a manual switch, which is operated by a user to complete the state switching; the switch 10 may be an electronically controlled switch, which automatically completes the state switching under the control of the processor.
- the current ventilation mode of the anesthesia ventilator can also be indicated by the text displayed on the display interface. As shown in Figure 1b, the doctor can judge the current operation of the anesthesia machine based on the text on the display interface. model.
- a static or dynamic graphic displayed on the display interface can also be used to indicate the ventilation mode currently set by the anesthesia ventilation device. For example, first obtain the ventilation mode information of the anesthesia ventilation device to provide ventilation support to the patient, according to The ventilation mode information outputs the preset graphics to the display interface for display, and different preset graphics represent different ventilation modes. Or when it is detected that the anesthesia ventilation device is switched to manual ventilation mode or exits the machine-controlled ventilation mode, the preset graphics will be displayed on the display interface. When the anesthesia ventilation device is not in manual ventilation mode, the preset graphics will not be displayed, that is, the preset graphics only Indicates manual ventilation mode. Thus, different working modes can be distinguished by adopting preset graphics on the display interface.
- this embodiment uses an anesthesia ventilator 100 as an anesthesia ventilation device, which includes a gas source (not shown), an anesthesia output device 110, a breathing interface 120a, a gas source interface 120b, a breathing circuit 130, and a ventilation device.
- the gas source is used to provide gas.
- the gas can usually be oxygen, nitrous oxide (laughing gas) and air.
- the gas source is supplied by a compressed gas cylinder (or a central gas supply source), and the gas supply types include oxygen O2, laughing gas N2O, and air.
- the gas source may also include conventional components such as pressure gauges, pressure regulators, flow meters, pressure reducing valves, and N2O-O2 proportional control and protection devices, which will not be described in detail here.
- the anesthetic used by the anesthesia ventilator 100 is usually liquid.
- the anesthetic vaporizer is used as the anesthesia output device 110 to convert the stored anesthetic into anesthetic vapor, which is mixed with the gas input from an external gas source and passed through the gas source interface 120b is input into the breathing circuit 130.
- it can be combined with a microcomputer and a sensor to form an electronically controlled evaporator to automate the control of anesthetic concentration, reduce the possibility of human error, and improve the safety of inhalation anesthesia.
- the breathing circuit 130 includes an inhalation passage 131a and an exhalation passage 131b.
- the inhalation passage 131a is provided with an air inlet for introducing anesthetic gas.
- the air passage 131a and the exhalation passage 131b are respectively connected to the patient's respiratory system.
- the inspiratory passage 131a is responsible for delivering anesthesia mixture to the patient, and the exhalation passage 131b is used to recover the patient's exhaled gas and discharge excess anesthetic gas into the residual gas.
- Collection system 120c In this embodiment, the inhalation passage 131a is connected between the breathing interface 120a and the breathing assist device 150. According to the situation, the breathing interface 120a may be a tracheal intubation or a mask for wearing on the nose and mouth.
- the function of the breathing assist device 150 is to provide power to control the delivery of the gas provided by the gas source and the gas mixed with the anesthetic output from the anesthesia output device 110 to the patient.
- the expiratory passage 131b communicates with the breathing interface 120a and is closed to the inhalation passage 131a, so that the gas exhaled by the patient is re-sent into the inhalation passage 131a.
- the exhalation passage 131b may also be connected between the breathing interface 120a and the breathing assist device 150.
- a CO2 absorber 132 is also provided on the inhalation passage 131a.
- the CO2 absorber 132 is located between the breathing assist device 150 and the inhalation valve 141a, and its function is to filter the CO2 in the gas entering the inhalation passage 131a from the exhalation passage 131b.
- the ventilation control assembly 140 includes an inhalation valve 141a and an exhalation valve 141b.
- the inhalation valve 141a is provided on the inhalation passage 131a
- the exhalation valve 141b is provided on the exhalation passage 131b.
- the inhalation valve 141a and the exhalation valve 141b are respectively check valves.
- the opening direction of the inhalation valve 141a faces the patient, and the opening direction of the breathing valve 141c is away from the patient, so that when the patient inhales, the inhalation valve 141a is opened and the expiration valve 141b is closed. ; When the patient exhales, the exhalation valve 141b is opened, and the inhalation valve 141a is closed.
- the inhalation valve 141a and the exhalation valve 141b can also be general control valves, and the processor 180 controls the opening or closing of the corresponding control valves.
- the processor 180 can control the inhalation
- the inspiratory valve 141a on the passage 131a is opened, and the expiratory valve 141b on the expiratory passage 131b is closed, so that the patient can inhale gas smoothly; in the expiration phase, the processor 180 can control the expiratory valve 141b on the expiratory passage 131b to open , The inhalation valve 141a on the inhalation passage 131a is closed, so that the patient can exhale the air smoothly.
- the breathing assist device 150 is used to assist and control the patient’s breathing. It includes a machine-controlled ventilation module 151b and a manual ventilation module 151a.
- the ventilation mode can be switched through a machine-controlled or manual switch (such as a three-way regulating valve 152) to make anesthesia breathing
- the machine 100 can provide the patient with a machine-controlled ventilation mode and a manual ventilation mode.
- the manual ventilation module 151a includes an airbag.
- the breathing circuit 130 is connected to the airbag by switching the three-way regulating valve 152, and medical personnel such as anesthesiologists or surgeons control the patient by manually pressing the airbag. breathe.
- the machine-controlled ventilation module 151b When the machine-controlled ventilation module 151b is used for ventilation, the machine-controlled ventilation module 151b is connected to the breathing circuit 130 by switching the three-way regulating valve 152, and machine ventilation is used instead of manually pressing the airbag, thereby providing ventilation support for the patient.
- the pipeline connecting the airbag and the inhalation passage 131a is provided with a branch 131c, and the exhaust port at the end of the branch 131c is provided with a breathing valve 141c for ensuring the stable pressure in the breathing circuit 130 in the manual ventilation mode.
- the breathing valve 141c In the manual ventilation mode, if the pressure in the breathing circuit 130 is too high, the pressure in the branch 131c will also be too high, the breathing valve 141c will automatically open, and a part of the air in the breathing circuit 130 will be discharged through the breathing valve 141c, thereby reducing the breathing circuit 130
- the internal pressure can avoid excessive pressure of the breathing circuit 130 to cause lung damage to the patient when the airbag is manually pressed.
- the airbag 151a When the manual airbag 151a is connected to the breathing circuit 130 by switching the state of the three-way regulating valve 152, when it is necessary to assist the patient to inhale, as shown in FIG. 2, the airbag 151a can be squeezed by hand or other tools. The air in the air is squeezed into the breathing circuit 130 through the three-way regulating valve 152. At this time, the inhalation valve 141a is opened under the action of the air flow, and the exhalation valve 141b is closed under the action of the air flow.
- the air flows through the CO2
- the absorber 132 reaches the inhalation valve 141a, the carbon dioxide in the airflow is filtered in the CO2 absorber, the filtered CO2 gas is mixed with the anesthetic mixed gas output by the anesthesia output device 110, and then flows into the inhalation passage 131a through the inhalation valve 141a, and then It enters the patient's respiratory system through the breathing interface 120a, and the arrow in FIG. 2 shows the direction of the airflow during the inhalation phase.
- the airbag 151a is released.
- the airbag 151a returns to its original shape due to elasticity.
- the inhalation valve 141a When the exhalation valve 141b is closed and the exhalation valve 141b is opened, the airflow in the patient's airway flows back into the airbag 151a through the exhalation valve 141b.
- the arrow in FIG. 3 shows the direction of the airflow during the exhalation phase.
- the sensor 160 is arranged in the breathing circuit 130 to detect air flow information in the breathing circuit 130.
- the air flow information includes gas flow information and gas pressure information.
- the sensor 160 includes an inspiratory flow sensor 161a, an expiratory flow sensor 161b, and a pressure gauge 161c.
- the inspiratory flow sensor 161a is arranged on the inspiratory passage 131a, and is used to detect the gas flow in the inspiratory passage 131a and measure the detected gas. The flow is converted into an electrical signal and output to the processor 180.
- the expiratory flow sensor 161b is installed on the expiratory passage 131b to detect the gas flow in the expiratory passage 131b, and convert the detected gas flow into an electrical signal to output to the processor ⁇ 180.
- the pressure gauge 161c is set at the interface between the breathing circuit 130 and the breathing assist device 150, and is used to measure the gas pressure in the breathing circuit 130. Normally, the pressure gauge 161c has a pressure indicator, and the user (such as a doctor) can learn about it through the pressure indicator The gas pressure into the breathing circuit 130.
- an electronic pressure sensor may also be provided in the breathing circuit 130 to detect the gas pressure in the breathing circuit 130 and convert the detected gas pressure into an electrical signal to output to the processor 180.
- only a flow sensor or a pressure sensor may be provided according to the required breathing information of the patient, and the corresponding breathing information can be obtained according to the flow information or pressure information.
- the memory 170 is used to store data or programs.
- the memory 170 may store an initial image frame or an image frame generated by the storage processor 180 that is not displayed immediately.
- the image frame may be a 2D or 3D image, or the memory 170 may store Graphical user interface, one or more default image display settings, programming instructions for the processor 180.
- the memory 170 may be a tangible and non-transitory computer-readable medium, such as flash memory, RAM, ROM, EEPROM, and so on.
- the processor 180 is used to execute programs and process data in the memory 170 or data output by the sensor 160.
- the processor 180 includes a control unit 181, an arithmetic unit 182, and an information display system 183.
- the control unit 181 is configured to connect the machine-controlled ventilation mode or the manual ventilation mode to the breathing circuit 130 according to the set ventilation mode.
- the arithmetic unit 182 is used for calculating according to the airflow information output by the sensor 160 to obtain the patient's breathing information.
- the arithmetic unit 182 can generate a flow waveform showing changes in flow over time based on the gas flow detected by the inspiratory flow sensor 161a and the expiratory flow sensor 161b, and calculate the tidal volume and respiratory rate based on the flow waveform. , At least one of the inspiratory flow rate, the expiratory flow rate, the minute volume, and the leakage volume.
- the information display system 183 is used to display the current working mode of the anesthesia ventilator 100.
- the information display system 183 includes a device information acquisition unit 184a and a display unit 184c; the device information acquisition unit 184a is used to acquire the ventilation provided by the anesthesia ventilator 100 to provide ventilation support to the patient Mode information, the display unit 184c is used to output the acquired ventilation mode to the display interface of the display for display, and use preset graphics to distinguish different working modes on the display interface.
- the preset graphic may be any graphic, and preferably simulates the shape of the respiratory assist device 150 and/or the shape of the lung.
- the preset graphic simulation of the shape of the airbag indicates that the current anesthesia ventilator 100 provides manual ventilation mode
- the preset graphic simulation of the shape of the machine-controlled ventilation module 151b indicates that the current anesthesia ventilator 100 provides the machine-controlled ventilation mode, or only when anesthesia ventilation is provided.
- the preset graphics appear on the display interface.
- the preset graphics are not used to indicate the current ventilation mode of the anesthesia ventilation device .
- the information display system 183 further includes a breathing parameter acquisition unit 184b, which is used to acquire the patient's breathing information calculated by the computing unit 182.
- the display unit 184c is also used to change the shape of the preset graphics according to the patient's breathing information.
- the shape of the preset graphics may refer to the size (such as area or volume), filling density, and color (such as chroma and/or brightness) of the preset graphics. ) Or the degree of distortion, etc.
- the shape of the preset graphics also changes with the real-time breathing information.
- specific embodiments will be used to illustrate how the shape of the preset graphics changes with the real-time breathing information.
- the anesthesia ventilation device may be a device other than the anesthesia ventilator 100 that can ventilate the patient while providing anesthesia.
- the workflow for displaying information of the anesthesia ventilation device is shown in Fig. 4, and includes the following steps:
- Step 1000 Obtain ventilation mode information.
- the ventilation mode information is used to indicate the current ventilation mode of the anesthesia ventilation device.
- the ventilation modes include a machine-controlled ventilation mode and a manual ventilation mode, and the current ventilation mode is obtained by the device information obtaining unit 184a in the processor.
- the user can select whether to enter the machine-controlled ventilation mode or the manual ventilation mode on the display interface as needed. For example, the user can select the machine-controlled ventilation mode or the manual ventilation mode by clicking an icon or menu on the display interface.
- the instruction of the computer-controlled ventilation mode will be triggered, and the instruction will be received by the processor 180.
- the processor 180 Based on the instruction, the processor 180 outputs a control command to the switch 10 (as shown in Figure 1a) to make the The control switch automatically completes state switching under the control of the processor.
- the instruction of the machine-controlled ventilation mode will also be sent to the device information obtaining unit 184a, so that the device information obtaining unit 184a can learn the current ventilation mode.
- the switch 10 when the switch 10 (as shown in Fig. 1a) is a manual switch, the switch 10 can be a switch with two contacts, and the position of the two contacts (for example, in Fig. 1a) The positions 12 and 13) respectively represent the machine-controlled ventilation mode and the manual ventilation mode.
- the switch 10 When the switch 10 is rotated to make the indicator pin 11 point to the position 12, the contact of the machine-controlled ventilation mode is triggered.
- the switch 10 When the switch 10 is rotated to make the indicator pin 11 point to the position 13, the contact of the manual ventilation mode is triggered. After the contact is triggered, it will change the level signal of the contact.
- the level signal is sent to the processor 180 and acquired by the device information acquiring unit 184a, so that the device information acquiring unit 184a knows where the anesthesia ventilation device is currently located. Ventilation mode.
- Step 1100 Determine whether the ventilation mode is a manual ventilation mode. If the current ventilation mode is a manual ventilation mode, perform step 1300; if it is not a manual ventilation mode, perform step 1200.
- step 1200 the display interface does not display the preset graphic 200, and proceed to step 1000.
- a preset graphic representing the machine-controlled ventilation mode may also be displayed.
- the memory 170 pre-stores the image frames corresponding to the manual ventilation mode and the machine-controlled ventilation mode. After determining which mode the ventilation mode is in, the processor 180 retrieves the corresponding image frames in the memory 170 and outputs the corresponding preset graphics on the display interface 200.
- a preset graphic 200 representing a manual ventilation mode is displayed on the display interface.
- the preset graphic 200 may be an image frame pre-stored in the memory 170.
- the processor 180 retrieves the image frame in the memory 170 and transmits the image frame to the display 190 via the display unit 184c Is displayed on the display interface.
- the preset graphic 200 simulates the shape of an airbag as shown in FIG. 5, or as shown in FIG. 6, simulating a graphic when the user's palm presses the airbag.
- the preset graphic 200 representing the manual ventilation mode can also adopt other graphics, such as a circle, a balloon, a lung-like shape, or any other shape that can simulate an airbag, or other shapes that can indicate the current manual ventilation mode.
- the graphic can be a flat graphic or a three-dimensional graphic.
- Step 1400 Obtain the patient's breathing information.
- the patient's breathing information may include at least one of respiratory waveform, tidal volume, respiratory rate, inspiratory flow rate, expiratory flow rate, minute volume, and leakage volume.
- the patient's breathing information can be obtained through various sensors arranged in the breathing circuit.
- the respiration waveform and respiration rate of the patient can be obtained according to the data collected by the flow sensor, and step 1400 can specifically include the following steps:
- the respiratory parameter acquiring unit 184b receives the inspiratory flow collected by the inspiratory flow sensor 161a and the expiratory flow collected by the expiratory flow sensor 161b, respectively.
- Step 1402 Judging the current breathing state of the patient according to the inspiratory flow and the expiratory flow.
- the breathing state of a patient includes an inspiratory phase and an expiratory phase.
- the inspiratory phase refers to the time period during which the patient is in the inhalation state
- the expiratory phase refers to the time period during which the patient is in the expiratory state. If the inspiratory flow is not zero and the expiratory flow is zero, the patient is in the inspiratory phase; if the inspiratory flow is zero and the expiratory flow is not zero, the patient is in the expiratory phase. Thereby, the respiratory waveform can be obtained, and the respiratory rate can be obtained according to the respiratory waveform.
- the tidal volume of the patient may be obtained according to the data collected by the flow sensor, and step 1400 may specifically include the following steps:
- Step 1411 receiving the inspiratory flow rate and the expiratory flow rate, is substantially the same as step 1401.
- Step 1412 according to the inspiratory flow and the expiratory flow, a flow waveform for showing the change of the flow with time is generated.
- the arithmetic unit 182 calculates the integral of the inspiratory flow to the inspiratory time during one breathing cycle of the patient to obtain the flow of inhaled gas, that is, the tidal volume, and calculates the expiratory flow versus expiratory time in one breathing cycle of the patient Integrate to get the flow of exhaled gas. And can further get the minute air volume.
- Step 1400 may specifically include the following steps:
- Step 1421 receiving the inspiratory flow rate and the expiratory flow rate, is substantially the same as step 1401.
- Step 1422 According to the inspiratory flow and the expiratory flow, a flow waveform for showing the change of the flow with time is generated.
- step 1423 the computing unit 182 calculates the differential of the gas flow rate to the breathing time in one breathing cycle of the patient to obtain the gas velocity.
- the gas velocity includes a velocity direction and a velocity value, and the velocity direction includes inhalation and expiration, and the inhalation velocity and the expiration velocity can be obtained.
- the airflow leakage amount can also be obtained.
- the leakage amount can be calculated according to the flow rate of inhaled gas and the flow rate of exhaled gas.
- the amount of gas leakage in a breathing cycle tidal volume- The flow of exhaled air.
- step 1500 the shape of the preset graphic 200 is changed according to the breathing information of the patient.
- the change in the shape of the preset graphic 200 can be embodied as a change in area or volume, or as a change in filling density, or as a change in color, such as the brightness, gray, chroma, or saturation of the color, etc. It can also be reflected as a change in the degree of distortion.
- step 1501 it is determined whether the current patient is in the inspiratory phase, if the patient is in the inspiratory phase, step 1502 is executed, and if the patient is not in the inspiratory phase, step 1504 is executed.
- Step 1502 according to the displayed image frame rate, generate an image frame in which the shape of the preset graphic 200 changes along the preset first direction.
- the first direction refers to from large to small, indicating that the airbag is squeezed from large to small ; But if the preset graphic 200 is a shape that simulates the lung, the first direction can refer to from small to large.
- the change in the shape of the preset graphic 200 is embodied as a change in color
- the first direction may refer to a light color to a dark color.
- the change of the shape of the preset graphic 200 is reflected in the change of the filling density
- the first direction may refer to the change from sparse filling to dense filling.
- step 1503 the image frames after the shape change of the preset graphic 200 are sequentially input to the display interface for display, and step 1501 is performed.
- Step 1504 according to the displayed image frame rate, generate an image frame in which the shape of the preset graphic 200 changes along the preset second direction.
- step 1505 the image frames after the shape change of the preset graphic 200 are sequentially input to the display interface for display, and step 1501 is performed.
- the second direction is opposite to the first direction, and the shape change of the preset pattern 200 may be a change of an equal proportion or an equal distance.
- the preset first direction is the shrinking direction of the shape of the preset graphic 200
- the preset second direction is the preset Assuming the increasing direction of the shape of the graphic 200, when the patient is in the inspiratory phase, the airbag graphic on the display interface gradually decreases from left to right, and when the patient is in the expiratory phase, the airbag graphic gradually increases from right to left.
- step 1500 changing the shape of the preset graphic 200 according to the patient's breathing information, includes the following steps:
- Step 1511 Determine the number of image frames that need to be inserted from the initial form to the maximum change form according to the displayed image frame rate, inhalation time, and expiration time.
- the initial form of the preset graphic 200 corresponds to the first image frame
- the maximum change form of the preset graphic 200 corresponds to the second image frame
- the image frame rate of the animation formed on the display interface is calculated from the first image frame The number of image frames required between the second image frame.
- Step 1512 Generate image frames that need to be inserted according to the degree of change in the shape of the preset graphic 200 and the number of inserted image frames. For example, a number of intermediate frames are automatically generated in a way of equal proportions or equal distance changes.
- step 1513 the initial image frame including the initial form, the inserted image frame, and the final image frame including the maximum change form are sequentially output to the display 190 for display.
- the first image frame, several intermediate frames and the second image frame are displayed in sequence, or displayed in reverse order.
- the aforementioned initial form refers to the initial form corresponding to the preset pattern 200 at the beginning of the inspiratory phase/expiration phase
- the maximum change form refers to the end form corresponding to the preset pattern 200 at the end of the inspiratory phase/respirator phase.
- FIG. 8 is a morphological change diagram of a preset pattern 200 obtained according to tidal volume during a breathing cycle.
- the preset pattern 200 located on the far left is the initial image frame at the beginning of the inspiratory phase
- the preset pattern 200 located on the far right is the initial image frame at the beginning of the inspiration phase.
- the preset image is the final image frame at the end of the inhalation phase
- the image frame rate of the display 190 used is 6 fps (frames per second)
- the inhalation time is 2 s, so 10 frames of graphics are generated.
- the user (such as a doctor) can intuitively observe and realize that the current patient is in the manual ventilation mode through the morphological changes of the preset graphics, and can also intuitively observe and realize that the current patient is in the inspiratory phase or the exhalation phase.
- the patient’s breathing rate can also be known.
- the maximum change form may be related to the tidal volume of the detected patient, for example, the image frame of the maximum change form is determined according to the tidal volume. For example, the greater the tidal volume, the greater the degree of change of the shape of the preset pattern in the image frame. .
- the user can not only intuitively observe and realize that the current patient is in the inspiratory or expiratory phase, but also can intuitively observe and realize the tidal volume of the current patient.
- the breathing speed may be represented on the preset graph 200.
- Step 1500 changing the form of the preset graph 200 according to the patient's breathing information, includes the following steps:
- Step 1521 Add a first graphic element 300 to the preset graphic.
- the first graphic element 300 is a graphic element with a direction mark to indicate whether to exhale or inhale.
- Step 1522 Determine the direction of the first graphic element 300 according to the obtained gas velocity direction. For example, when the inhalation speed is obtained, the direction of the first graphic element 300 faces outward; when the exhalation speed is obtained, the direction of the first graphic element 300 faces inward.
- Step 1523 Determine the characteristic change of the first graphic element 300 according to the obtained gas velocity value.
- the characteristic changes include moving speed, blinking speed, volume change, density change, thickness change or shade change.
- the graphic changes to the blinking speed.
- the direction of the first graphic element 300 is determined according to the flow direction of the airflow.
- the direction of the arrow is away from the balloon graphic, indicating that the gas is flowing to the patient and the patient is in the inspiratory phase.
- the direction of the arrow points to the airbag graphic, indicating that the gas is far away from the patient and the patient is in the expiratory phase.
- the blinking speed of the first graphic element 300 is determined according to the airflow velocity value. When the airflow velocity value is large, the blinking velocity of the first graphic element 300 is high, and when the gas velocity value is small, the blinking velocity of the first graphic element 300 is small. Therefore, the user can intuitively observe and realize that the current patient is in the inspiratory phase or the expiratory phase, and can intuitively observe and realize the current patient's breathing rate.
- the above-mentioned first graphic element 300 may also be preset in the memory 170.
- the processor 180 retrieves the first graphic element 300 in the memory 170.
- the preset graph 200 is shown in FIG. 13, in addition to simulating the shape of the airbag pressed by the user in the manual ventilation mode, it also simulates the shape of the patient’s lungs.
- the simulated airbag and the simulated patient’s There is also a trachea connecting the two lungs.
- Figure 14 on the basis of Figure 13, the palm of the airbag is also simulated.
- the airbag pattern and the lung pattern show opposite morphological changes.
- the airbag pattern becomes flat, and when the lung pattern is full, the airbag pattern becomes flat.
- step 1500 changing the shape of the preset graph 200 according to the patient's breathing information, includes the following steps:
- Step 1531 Determine whether the amount of gas leakage is greater than the first threshold, if the amount of gas leakage is greater than the first threshold, execute step 1532, and if the amount of gas leakage is not greater than the first threshold, execute step 1531.
- Step 1532 Determine whether the amount of gas leakage is greater than the second threshold, the second threshold is greater than the first threshold, if the amount of gas leakage is not greater than the second threshold, step 1533 is executed, and if the amount of gas leakage is greater than the second threshold, step 1534 is executed.
- Step 1533 Obtain a second graphic element 400 for representing gas leakage and add it to the preset graphic 200. As shown in FIG. 17, when the obtained gas leakage amount is greater than the first threshold, the preset graphic 200 and the second graphic element 400 are displayed on the display interface.
- Step 1534 Obtain a third graphic element 500 used to indicate that the trachea falls off and add it to the preset graphic 200. As shown in FIG. 18, when the obtained gas leakage amount is greater than the second threshold, the preset graphic 200 and the third graphic element 500 are displayed on the display interface.
- the image frames of the aforementioned second graphic element 400 and the third graphic element 500 may be stored in the memory 170 in advance.
- the user for example, a doctor
- the characteristic change of the preset graphic 200 may also be used to display the respiratory frequency. For example, by changing the number of image frames of the generated preset graphic according to the respiratory frequency, the speed of the respiratory frequency may be indicated by the blinking speed.
- the steps in the above multiple embodiments can be combined. For example, by combining steps 1400 and 1500 in one embodiment with steps 1420 and 1520 in another embodiment, you can get the first pattern The preset pattern 200 of the element 300 that changes in the first direction or the second direction.
- the anesthesia ventilation device by detecting some parameters, it is also possible to automatically determine whether the anesthesia ventilation device should switch to the machine-controlled ventilation mode or the manual ventilation mode, and give a prompt. For example, when the patient is injected with anesthetics, the patient's muscle relaxation parameters are monitored. When the muscle relaxation parameters drop to 0, after a certain period of time (for example, 1 minute), it is prompted whether to enter the machine-controlled ventilation mode. For another example, the patient's breathing parameters are monitored, and when it is determined that the patient has spontaneous breathing and/or human-machine confrontation based on the breathing parameters, it is prompted whether to enter the manual ventilation mode.
- the principles herein can be reflected in a computer program product on a computer-readable storage medium, which is pre-installed with computer-readable program code.
- a computer-readable storage medium Any tangible, non-transitory computer-readable storage medium can be used, including magnetic storage devices (hard disks, floppy disks, etc.), optical storage devices (CD-ROM, DVD, Blu Ray disks, etc.), flash memory and/or the like .
- These computer program instructions can be loaded on a general-purpose computer, a special-purpose computer, or other programmable data processing equipment to form a machine, so that the instructions executed on the computer or other programmable data processing device can generate a device that realizes the specified function.
- Computer program instructions can also be stored in a computer-readable memory, which can instruct a computer or other programmable data processing equipment to operate in a specific manner, so that the instructions stored in the computer-readable memory can form a piece of Manufactured products, including realization devices that realize specified functions.
- Computer program instructions can also be loaded on a computer or other programmable data processing equipment, thereby executing a series of operation steps on the computer or other programmable equipment to produce a computer-implemented process, so that the execution of the computer or other programmable equipment Instructions can provide steps for implementing specified functions.
- Coupled refers to physical connection, electrical connection, magnetic connection, optical connection, communication connection, functional connection and/or any other connection.
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- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
Description
图1a和图1b为麻醉通气设备展示工作状态展示界面的两种示意图;
Claims (26)
- 一种麻醉通气设备的信息显示方法,其特征在于,所述麻醉通气设备向患者提供通气支持的通气模式包括机控通气模式和手动通气模式,所述方法包括:获取麻醉通气设备向患者提供通气支持的通气模式信息;将获取到的通气模式信息输出至显示界面进行显示,在显示界面上采用预设图形区别不同的工作模式。
- 如权利要求1所述的方法,其特征在于,还包括将患者的呼吸信息输出至显示界面进行显示。
- 如权利要求2所述的方法,其特征在于,通过预设图形的特征变化呈现所述患者的呼吸信息。
- 一种麻醉通气设备的信息显示方法,所述麻醉通气设备向患者提供通气支持的通气模式包括机控通气模式和手动通气模式,其特征在于,所述方法包括:获取麻醉通气设备向患者提供通气支持的通气模式信息;当麻醉通气设备切换至手动通气模式或退出机控通气模式时,在显示界面上显示预设图形。
- 如权利要求4所述的方法,其特征在于,还包括:获取患者的呼吸信息;根据患者的呼吸信息改变预设图形的形态。
- 如权利要求5所述的方法,其特征在于,所述根据患者的呼吸信息改变预设图形的形态包括:根据患者的呼吸信息得到患者的呼吸状态,患者的呼吸状态包括吸气相和呼气相;当检测到患者处于吸气相时,控制显示界面上显示预设图形的形态向预设的第一方向变化;当检测到患者处于呼气相时,控制显示界面上显示预设图形的形态向预设的第二方向变化,所述第二方向和第一方向相反。
- 如权利要求5或6所述的方法,其特征在于,所述根据患者的呼吸信息改变预设图形的形态还包括:根据患者的呼吸信息得到潮气量;根据潮气量确定所述预设图形形态的变化程度,所述预设图形形态的变化是指从吸气相/呼气相开始时预设图形对应的初始形态到吸气相/呼气相结束时预设图形对应的结束形态之间图形形态的差别,所述预设图形形态的变化程度和潮气量正相关。
- 如权利要求7所述的方法,其特征在于,所述根据患者的呼吸信息改变预设图形的形态还包括:根据患者的呼吸信息确定患者的吸气时间和/或呼气时间;根据吸气时间确定从预设图形对应的吸气相初始形态变化到吸气相结束形态所需的时间,根据呼气时间确定从预设图形对应的呼气相初始形态变化到呼气相结束形态所需的时间。
- 如权利要求5所述的方法,其特征在于,所述根据患者的呼吸信息改变预设图形的形态包括:获取带有方向标识的第一图形元素添加到所述预设图形上;根据患者的呼吸信息得到气流速度,所述气流速度包括速度方向和速度值,所述速度方向包括吸气和呼气;根据速度方向确定所述第一图形元素的方向,根据速度值确定所述第一图形元素的特性变化。
- 如权利要求9所述的方法,其特征在于,所述特性变化包括移动速度、闪烁速度、体积变化、密度变化、粗细变化或浓淡变化。
- 如权利要求5所述的方法,其特征在于,所述根据患者的呼吸信息改变预设图形的形态包括:根据患者的呼吸信息得到气体泄漏量;当气体泄漏量大于第一阈值时,获取用于表示气体泄漏的第二图形元素添加到所述预设图形上;当气体泄漏量大于第二阈值时,获取用于表示气管脱落的第三图形元素添加到所述预设图形上,所述第二阈值大于第一阈值。
- 如权利要求5所述的方法,其特征在于,所述获取患者的呼吸信息包括:接收通过设置在呼吸回路中的流量传感器采集吸气流量和呼气流量;根据吸气流量和呼气流量生成用于展示流量随时间变化的流量波形;根据流量波形计算呼吸信息,所述呼吸信息包括潮气量、呼吸率、吸气流速、呼气流速、分钟气量和泄漏量中的至少一个。
- 如权利要求1至12中任一项所述的方法,其特征在于,所述预设图形模拟呼吸辅助装置的外形和/或肺的外形。
- 一种信息显示系统,用于显示麻醉通气设备的当前通气模式,其特征在于所述信息显示系统包括:设备信息获取单元,获取麻醉通气设备向患者提供通气支持的通气模式信息;展示单元,将获取到的通气模式信息输出至显示界面进行显示,在显示界面上采用预设图形区别不同的工作模式。
- 一种信息显示系统,用于显示麻醉通气设备的当前工作模式,其特征在于所述信息显示系统包括:设备信息获取单元,用于获取麻醉通气设备向患者提供通气支持的通气模式信息;呼吸参数获取单元,用于获取患者的呼吸信息;展示单元,用于当麻醉通气设备切换至手动通气模式或退出机控通气模式时,在显示器的显示界面上显示预设图形。
- 如权利要求15所述的信息显示系统,其特征在于,所述展示单元还用于根据患者的呼吸信息改变预设图形的形态。
- 如权利要求16所述的信息显示系统,其特征在于,所述根据患者的呼吸信息改变预设图形的形态包括:根据患者的呼吸信息得到患者的呼吸状态,患者的呼吸状态包括吸气相和呼气相;当检测到患者处于吸气相时,控制显示界面上显示预设图形的形态向预设的第一方向变化;当检测到患者处于呼气相时,控制显示界面上显示预设图形的形态向预设的第二方向变化,所述第二方向和第一方向相反。
- 如权利要求16所述的信息显示系统,其特征在于,所述根据患者的呼吸信息改变预设图形的形态包括:根据患者的呼吸信息得到潮气量;根据潮气量确定所述预设图形形态的变化程度,所述预设图形形态的变化是指从吸气相/呼气相开始时预设图形对应的初始形态到吸气相/呼气相结束时预设图形对应的结束形态之间图形形态的差别,所述预设图形形态的变化程度和潮气量正相关。
- 如权利要求16所述的信息显示系统,其特征在于,所述根据患者的呼吸信息改变预设图形的形态包括:获取带有方向标识的第一图形元素添加到所述预设图形上;根据患者的呼吸信息得到气流速度,所述气流速度包括速度方向和速度值,所述速度方向包括吸气和呼气;根据速度方向确定所述图形元素的方向,根据速度值确定所述图形元素的特性变化。
- 如权利要求16所述的信息显示系统,其特征在于,所述根据患者的呼吸信息改变预设图形的形态包括:根据患者的呼吸信息得到气体泄漏量;当气体泄漏量大于第一阈值时,获取用于表示气体泄漏的第二图形元素添加到所述预设图形上;当气体泄漏量大于第二阈值时,获取用于表示气管脱落的第三图形元素添加到所述预设图形上,所述第二阈值大于第一阈值。
- 如权利要求16所述的信息显示系统,其特征在于,所述获取患者的呼吸信息包括:接收通过设置在呼吸回路中的流量传感器采集吸气流量和呼气流量;根据吸气流量和呼气流量生成用于展示流量随时间变化的流量波形;根据流量波形计算呼吸信息,所述呼吸信息包括潮气量、呼吸率、吸气流速、呼气流速、分钟气量和泄漏量中的至少一个。
- 如权利要求14-21中任一项所述的信息显示系统,其特征在于,所述预设图形模拟呼吸辅助装置的外形和/或肺的外形。
- 一种麻醉通气设备,其特征在于,包括:气源接口,连接外部气源;呼吸回路,将气源接口和患者的呼吸系统连通,以将气源提供的气体输送给患者,接收患者呼出的气体;麻醉输出装置,用于将存储的麻药与输入的气体混合后输出到呼吸回路中;呼吸辅助装置,通过呼吸回路向患者提供通气支持,控制将气源提供的气体、患者呼出的气体和麻醉输出装置输出的混合有麻药的气体输送给患者,所述呼吸辅助装置包括机控通气模块和手动通气模块;传感器,其设置在呼吸回路中,用于检测呼吸回路中的气流信息;处理器,所述处理器包括控制单元、运算单元和如权利要求14-22中任一项所述的信息显示系统,所述控制单元根据设定的通气模式,将机控通气模块或手动通气模块接入呼吸回路;所述运算单元根据传感器输出的气流信息进行计算,得到患者的呼吸信息;显示器,在显示界面上显示预设图形。
- 如权利要求23所述的麻醉通气设备,其特征在于,所述传感器是流量传感器或压力传感器,分别用于检测呼吸回路中的流量信息或压力信息,所述运算单元用于根据传感器输出的流量信息或压力信息计算出患者的呼吸信息。
- 一种麻醉通气设备,其特征在于,包括:存储器,用于存储程序;处理器,用于通过执行所述存储器存储的程序以实现如权利要求1-13中任一项所述的方法。
- 一种计算机可读存储介质,其特征在于,包括程序,所述程序能够被处理器执行以实现如权利要求1-13中任一项所述的方法。
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