Ventilation information display method and device of medical ventilation equipment and medical equipment

Abstract

A ventilation information display method for a medical ventilation device, a ventilation information display apparatus, and a medical device. At least one breathing parameter of a patient connected to the medical ventilation device is acquired (1000); obtaining a target of ventilation control parameters and a ventilation treatment strategy (1010, 1020); calculating a target of at least one associated control parameter according to the target of the ventilation control parameter and the ventilation treatment strategy (1030); obtaining a ventilation parameter characterizing the ventilation state of the patient according to the obtained breathing parameter (1040); generating and outputting a visual graph according to the ventilation parameter of the patient, the target of the ventilation control parameter and the target of the at least one associated control parameter, and displaying the ventilation state of the patient, the target of the ventilation control parameter and the target of the at least one associated control parameter through the visual graph (1050).

Description

[0001] This application is a divisional application of the original application. The application number of the original application is: 201980098605.X. The name of the invention is: A ventilation information display method and device for medical ventilation equipment, and medical equipment. The application date is: December 16, 2019. Technical Field

[0002] The invention relates to a ventilation information display method of medical ventilation equipment, a ventilation information display device and medical equipment. Background Art

[0003] Human breathing refers to the periodic rhythmic inhalation and exhalation of gases, absorbing oxygen and expelling carbon dioxide, thereby achieving gas exchange. When some patients are unable to breathe on their own, mechanical ventilation can be used to help them breathe; for example, in the case of patients who do not breathe on their own, external equipment such as ventilators can usually be used to provide respiratory support to patients. It can be seen that mechanical ventilation is a ventilation method that uses mechanical devices to replace, control or change the patient's spontaneous breathing movements.

[0004] With the development of mechanical ventilation technology, more and more ventilation modes have emerged, such as Assisted Ventilation (AV) mode, Controlled Ventilation (CV) mode, Assist-control Ventilation (A-CV) mode, Intermittent Mandatory Ventilation (IMV) mode and Mandatory Minute Ventilation (MMV) mode.

[0005] Taking mandatory minute ventilation as an example, in the mandatory minute ventilation mode, ventilation equipment such as a ventilator ventilates the patient according to the preset minute ventilation volume. If the patient's spontaneous breathing is lower than the preset minute ventilation volume, the shortfall will be provided by the ventilator. If the patient's spontaneous ventilation is greater than or equal to the preset minute ventilation volume, the ventilator will no longer supply air. Clinically, the mandatory minute ventilation mode is mainly to ensure a smooth transition from controlled ventilation to spontaneous breathing for the patient when the ventilator is removed, to avoid the occurrence of insufficient ventilation.

[0006] Currently, there is still room for improvement in some mechanical ventilation modes, such as mandatory minute ventilation mode. Summary of the invention

[0007] The present invention mainly provides a ventilation information display method of medical ventilation equipment, a ventilation information display device and medical equipment.

[0008] According to a first aspect, an embodiment provides a method for displaying ventilation information of a medical ventilation device, wherein the medical ventilation device provides respiratory support for a patient, comprising:

[0009] obtaining at least one respiratory parameter of a patient connected to the medical ventilation device;

[0010] Obtaining goals for ventilation control parameters;

[0011] Obtain ventilation treatment strategies;

[0012] Calculating a target of at least one associated control parameter according to the target of the ventilation control parameter and a ventilation therapy strategy;

[0013] Obtaining ventilation parameters characterizing the patient's ventilation state according to the acquired respiratory parameters;

[0014] A visualization graphic is generated and outputted according to the patient's ventilation parameters, the target of the ventilation control parameters and the target of at least one associated control parameter, and the patient's ventilation state, the target of the ventilation control parameters and the target of at least one associated control parameter are displayed through the visualization graphic.

[0015] According to the second aspect, an embodiment provides a ventilation information display device, comprising:

[0016] monitor;

[0017] One or more sensors for collecting at least one respiratory parameter of the patient;

[0018] A processor is used to execute to implement the method as described in any embodiment of this document.

[0019] According to the third aspect, an embodiment provides a medical device, which includes the ventilation information display device described in any embodiment of the present invention.

[0020] According to a fourth aspect, an embodiment provides a computer-readable storage medium, comprising a program, wherein the program can be executed by a processor to implement a method as described in any embodiment herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a medical device according to an embodiment;

[0022] Figure 2 A schematic diagram of the structure of a medical device according to another embodiment;

[0023] Figure 3 A schematic structural diagram of a medical device according to another embodiment;

[0024] Figure 4A schematic diagram of the structure of a medical device according to another embodiment;

[0025] Figure 5(a), Figure 5(b), and Figure 5(c) are three examples of the visualized graphs being ring graphs;

[0026] Figure 6 An example of a visualization that simultaneously displays minute ventilation, tidal volume, and respiratory rate;

[0027] Figure 7(a), Figure 7(b), and Figure 7(c) are three examples of visualization graphs being bar graphs;

[0028] Figure 8 An example of a visualization that simultaneously displays minute ventilation, tidal volume, and respiratory rate;

[0029] Fig. 9 An example of a visualization that simultaneously displays minute ventilation, tidal volume, and respiratory rate;

[0030] Fig.10 An example of a visualization that simultaneously displays minute ventilation, tidal volume, and respiratory rate;

[0031] Fig.11 An example of a two-dimensional graph for visualization;

[0032] Fig.12 An example of a visualization that simultaneously displays minute ventilation, tidal volume, and respiratory rate;

[0033] Fig.13 An example of a visualization that simultaneously displays minute ventilation, tidal volume, and respiratory rate;

[0034] Fig.14 The visualization graph is an example of an altimeter graph;

[0035] Fig.15 The present invention is a flowchart of a ventilation information display method according to an embodiment. DETAILED DESCRIPTION

[0036] The present invention is further described in detail below by specific embodiments in conjunction with the accompanying drawings. Wherein similar elements in different embodiments adopt associated similar element numbers. In the following embodiments, many detailed descriptions are for making the present application better understood. However, those skilled in the art can easily recognize that some features can be omitted in different situations, or can be replaced by other elements, materials, methods. In some cases, some operations related to the present application are not shown or described in the specification, this is to avoid the core part of the present application being overwhelmed by too much description, and for those skilled in the art, it is not necessary to describe these related operations in detail, and they can fully understand the related operations according to the description in the specification and the general technical knowledge in the art.

[0037] In addition, the features, operations or characteristics described in the specification can be combined in any appropriate manner to form various implementations. At the same time, the steps or actions in the method description can also be interchanged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the various sequences in the specification and the drawings are only for the purpose of clearly describing a certain embodiment and are not meant to be a required sequence, unless otherwise specified that a certain sequence must be followed.

[0038] The serial numbers of the components in this document, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings).

[0039] In some embodiments of the present invention, a medical device is disclosed, which may include a ventilation information display device. , please refer to Figure 1 In some embodiments, the ventilation information display device may include one or more sensors 10, a processor 30, and a display 50. The medical device herein may be a patient monitor or a patient monitoring module in some embodiments, and may be a medical ventilation device, such as a ventilator and anesthesia machine in some embodiments; when the medical device includes a ventilation information display device, the medical device may be a patient monitor with a ventilation information display device, a patient monitoring module with a ventilation information display device, or a medical ventilation device with a ventilation information display device; or, in other words, the medical device may be a patient monitor with a ventilation information display function, a patient monitoring module with a ventilation information display function, or a medical ventilation device with a ventilation information display function, which are described below.

[0040] Please refer to Figure 2In some embodiments, the medical device may have an independent housing, and the housing panel may have a sensor interface area, wherein the sensor interface area may integrate multiple sensor interfaces for connecting with external physiological parameter sensor accessories 111, and in some embodiments, it may also be used to connect with the above-mentioned sensor 10. The housing panel may also include one or more of a small LCD display area, an input interface circuit 122, and an alarm circuit 120 (such as an LED alarm area). The medical device has an external communication and power interface 116 for communicating with a medical device host such as a patient monitor, a ventilator, an anesthesia machine, and taking power from the medical device host. The medical device may also support an external parameter module, and a plug-in monitor host may be formed by inserting a parameter module, as a part of the monitor, or it may be connected to the host through a cable, and the external parameter module is an external accessory of the monitor. The internal circuit of the medical device is placed in the housing, and may include a signal acquisition circuit 112 and a front-end signal processing circuit 113 corresponding to one or more physiological parameters. The signal acquisition circuit 112 may be selected from an electrocardiogram circuit, a body temperature circuit, a blood oxygen circuit, a non-invasive blood pressure circuit, an invasive blood pressure circuit, etc. These signal acquisition circuits 112 are electrically connected to corresponding sensor interfaces, respectively, and are used to be electrically connected to sensor accessories 111 corresponding to different physiological parameters, and their output ends are coupled to the front-end signal processing circuit 113. The communication port of the front-end signal processing circuit 113 is coupled to the processor 30, and the processor 30 is electrically connected to the external communication and power supply interface 116. The sensor accessories 111 and signal acquisition circuit 112 corresponding to various physiological parameters may adopt general circuits in the prior art. The front-end signal processing circuit 113 completes the sampling and analog-to-digital conversion of the output signal of the signal acquisition circuit 112, and outputs a control signal to control the measurement process of the physiological signal. These parameters include but are not limited to: electrocardiogram, body temperature, blood oxygen, non-invasive blood pressure and invasive blood pressure parameters. The front-end signal processing circuit 113 can be implemented by a single-chip microcomputer or other semiconductor devices, for example, the LPC2136 of PHLIPS or the mixed-signal single-chip microcomputer such as ADuC7021 of ADI can be selected, or it can be implemented by ASIC or FPGA. The front-end signal processing circuit 113 can be powered by an isolated power supply, and the sampled data is simply processed and packaged, and then sent to the processor 30 through the isolated communication interface. For example, the front-end signal processing circuit 113 can be coupled to the processor 30 through the isolated power supply interface 114 and the communication interface 115. The reason why the front-end signal processing circuit 113 is powered by an isolated power supply is that the DC / DC power supply isolated by the transformer plays the role of isolating the patient from the power supply equipment. The main purpose is: 1. Isolate the patient, float the application part through the isolation transformer, and make the patient leakage current small enough; 2. Prevent the voltage or energy during the application of defibrillation or electric knife from affecting the boards and devices of the intermediate circuit such as the main control board (guaranteed by creepage distance and electrical clearance). Of course, the front-end signal processing circuit 113 can also be directly connected to the processor 30 through a cable.The processor 30 is used to complete the calculation of physiological parameters, and send the calculation results and waveforms of the parameters to the host (such as a host with a display, a PC, a central station, etc.) through the external communication interface 119; the processor 30 can be directly connected to the external communication interface 119 through a cable for communication, and directly connected to the power interface 116 through a cable for power supply; the medical device can also include a power supply and battery management circuit 117, the power supply and battery management circuit 117 takes power from the host through the power interface 116, and supplies it to the processor 30 after processing, such as rectification and filtering; the power supply and battery management circuit 117 can also monitor, manage and protect the power obtained from the host through the power interface 116. The external communication interface 119 can be one or a combination of local area network interfaces composed of Ethernet, Token Ring, Token Bus, and the fiber distributed data interface (FDDI) as the backbone network of these three networks, or one or a combination of wireless interfaces such as infrared, Bluetooth, wifi, WMTS communication, or one or a combination of wired data connection interfaces such as RS232 and USB. The external communication interface 119 may also be a combination of one or both of a wireless data transmission interface and a wired data transmission interface. The host may be any computer device such as the host of the monitor, a computer, etc., and by installing the matching software, a monitoring device can be formed. The host may also be a communication device, such as a mobile phone. The medical device sends data to a mobile phone that supports Bluetooth communication through a Bluetooth interface to achieve remote transmission of data. After the processor 30 completes the calculation of the physiological parameters, it may also determine whether the physiological parameters are abnormal. If abnormal, an alarm may be issued through the alarm circuit 120. The memory 118 may store the intermediate and final data of the monitor, as well as program instructions or codes for execution by the processor 30, etc. If the monitor has the function of measuring blood pressure, it may also include a pump valve drive circuit 121, which is used to perform inflation or deflation operations under the control of the processor 30.

[0041] The above are some descriptions of the medical device being a patient monitor.

[0042] In some embodiments, the medical device may also be a ventilator, which is an artificial mechanical ventilation device used to assist or control the patient's spontaneous breathing movements to achieve the function of gas exchange in the lungs, reduce the body's consumption, and facilitate the recovery of respiratory function. Figure 3 In some embodiments, the medical device may further include a breathing interface 211, an air source interface 212, a breathing circuit and a breathing assistance device.

[0043] The breathing circuit selectively connects the gas source interface 212 and the patient's respiratory system. In some embodiments, the breathing circuit includes an exhalation branch 213a and an inhalation branch 213b, and the exhalation branch 213a is connected between the breathing interface 211 and the exhaust port 213c, and is used to guide the patient's exhaled gas to the exhaust port 213c. The exhaust port 213c can be connected to the external environment, or it can be connected to a dedicated gas recovery device. The gas source interface 212 is used to connect to a gas source (not shown in the figure), and the gas source is used to provide gas, which can generally be oxygen and air; in some embodiments, the gas source can be a compressed gas cylinder or a central gas supply source, and the gas is supplied to the ventilator through the gas source interface 212. The gas supply types include oxygen O2 and air, etc. The gas source interface 212 may include conventional components such as a pressure gauge, a pressure regulator, a flow meter, a pressure reducing valve, and an air-oxygen ratio control protection device, which are used to control the flow of various gases (such as oxygen and air). The inspiratory branch 213b is connected between the respiratory interface 211 and the gas source interface 212, and is used to provide oxygen or air to the patient. For example, the gas input from the gas source interface 212 enters the inspiratory branch 213b, and then enters the patient's lungs through the respiratory interface 211. The respiratory interface 211 is used to connect the patient to the respiratory circuit. In addition to introducing the gas transmitted by the inspiratory branch 213b to the patient, the gas exhaled by the patient can also be introduced to the exhaust port 213c through the exhalation branch 213a; depending on the situation, the respiratory interface 211 can be a nasal cannula or a mask for wearing on the mouth and nose. The breathing assistance device is connected to the gas source interface 212 and the breathing circuit to control the gas provided by the external gas source to be delivered to the patient through the breathing circuit; in some embodiments, the breathing assistance device may include an exhalation controller 214a and an inhalation controller 214b, and the exhalation controller 214a is arranged on the exhalation branch 213a, and is used to connect the exhalation branch 213a or close the exhalation branch 213a according to the control instruction, or control the flow rate or pressure of the patient's exhaled gas. In specific implementation, the exhalation controller 214a may include one or more devices such as an exhalation valve, a one-way valve, a flow controller, and a PEEP valve that can control the flow rate or pressure. The inhalation controller 214b is arranged on the inhalation branch 213b, and is used to connect the inhalation branch 213b or close the inhalation branch 213b according to the control instruction, or control the flow rate or pressure of the output gas. In specific implementation, the inhalation controller 214b may include one or more devices such as an exhalation valve, a one-way valve, or a flow controller that can control the flow rate or pressure.

[0044] The memory 215 may be used to store data or programs, such as data collected by a sensor, data generated by a processor through calculation, or an image frame generated by a processor, which may be a 2D or 3D image, or the memory 215 may store a graphical user interface, one or more default image display settings, or programming instructions for the processor. The memory 215 may be a tangible and non-transitory computer-readable medium, such as a flash memory, RAM, ROM, EEPROM, etc.

[0045] In some embodiments, the processor 30 is used to execute instructions or programs, control the breathing assistance device, the air source interface 212 and / or various control valves in the breathing circuit, or process the received data to generate the required calculation or judgment results, or generate visual data or graphics, and output the visual data or graphics to the display 50 for display.

[0046] The above are some descriptions of medical equipment as ventilators. It should be noted that the above Figure 3 This is just an example of a ventilator, and it is not intended to limit the ventilator to only have this structure.

[0047] In some embodiments, the medical device may also be an anesthesia machine, which is mainly used to provide anesthetic gas, deliver the anesthetic gas to the patient's respiratory system through a respirator, and control the amount of anesthetic gas inhaled. Figure 4 The medical device of some embodiments may also include a breathing interface 311 , an air source interface 312 , a breathing assistance device 320 , an anesthetic output device 330 , a breathing circuit and a storage device 350 .

[0048] The gas source interface 312 is used to connect to a gas source (not shown in the figure), and the gas source is used to provide gas. The gas can generally be oxygen, nitrous oxide (laughing gas) or air. In some embodiments, the gas source can be a compressed gas cylinder or a central gas supply source, and the gas supply type is oxygen O2, laughing gas N2O, air, etc. for the anesthesia machine through the gas source interface 312. The gas supply type includes oxygen O2, laughing gas N2O, air, etc. The gas source interface 312 may include conventional components such as a pressure gauge, a pressure regulator, a flow meter, a pressure reducing valve, and a N2O-O2 ratio control protection device, which are respectively used to control the flow of various gases (such as oxygen, laughing gas and air). The gas input by the gas source interface 312 enters the breathing circuit and forms a mixed gas with the original gas in the breathing circuit.

[0049] The breathing assistance device 320 is used to provide power for the patient's non-spontaneous breathing and maintain airway patency. In some embodiments, the breathing assistance device 320 is connected to the gas source interface 312 and the breathing circuit to control the gas provided by the external gas source to be delivered to the patient through the breathing circuit. In some specific embodiments, the breathing assistance device 320 mixes the fresh gas input from the gas source interface 312, the gas exhaled by the patient in the breathing circuit, and the anesthetic drug output by the anesthetic output device 330, and outputs it to the breathing interface 311 through the inspiratory branch 340b to drive the patient to inhale, and receives the gas exhaled by the patient through the expiratory branch 340a. In a specific embodiment, the breathing assistance device 320 generally includes a machine-controlled ventilation module, and the airflow duct of the machine-controlled ventilation module is connected to the breathing circuit. In the anesthesia maintenance stage during the operation or when the patient has not recovered spontaneous breathing, the machine-controlled ventilation module is used to provide the patient with breathing power. In some embodiments, the breathing assistance device 320 also includes a manual ventilation module, and the airflow duct of the manual ventilation module is connected to the breathing circuit. During the induction phase before intubation of the patient during surgery, a manual ventilation module is usually required to assist the patient's breathing. When the respiratory assistance device 320 includes both a machine-controlled ventilation module and a manual ventilation module, the machine-controlled or manual ventilation mode can be switched by a machine-controlled or manual switch (e.g., a three-way valve) to connect the machine-controlled ventilation module or the manual ventilation module to the breathing circuit, thereby controlling the patient's breathing. Those skilled in the art should understand that, depending on specific needs, the anesthesia machine may only include a machine-controlled ventilation module or a manual ventilation module.

[0050] The anesthetic output device 330 is used to provide anesthetic drugs. Usually, the anesthetic drugs are mixed into the fresh air introduced by the gas source interface 312 in the form of gas, and are transported to the breathing circuit together. In a specific embodiment, the anesthetic output device 330 is implemented by an anesthetic vaporizer. The anesthetic is usually in liquid form and stored in the anesthetic vaporizer. Optionally, the anesthetic vaporizer may include a heating device for heating the anesthetic to volatilize it and generate anesthetic vapor. The anesthetic output device 330 is connected to the pipeline of the gas source interface 312, and the anesthetic vapor is mixed with the fresh air introduced by the gas source interface 312, and then is transported to the breathing circuit together.

[0051] In some embodiments, the breathing circuit may include an inspiratory branch 340b, an expiratory branch 340a and a soda lime tank 340c, wherein the inspiratory branch 340b and the expiratory branch 340a are connected to form a closed circuit, and the soda lime tank 340c is arranged on the pipeline of the expiratory branch 340a. The mixed gas of fresh air introduced by the air source interface 312 is input from the inlet of the inspiratory branch 340b and provided to the patient through the breathing interface 311 arranged at the outlet of the inspiratory branch 340b. The breathing interface 311 can be a mask, a nasal cannula or an endotracheal cannula. In a preferred embodiment, a one-way valve is arranged on the inspiratory branch 340b, and the one-way valve is opened during the inspiratory phase and closed during the expiratory phase. A one-way valve is also arranged on the expiratory branch 340a, and the one-way valve is closed during the inspiratory phase and opened during the expiratory phase. The inlet of the exhalation branch 340a is connected to the breathing interface 311. When the patient exhales, the exhaled gas enters the soda lime tank 340c through the exhalation branch 340a, and the carbon dioxide in the exhaled gas is filtered out by the substance in the soda lime tank 340c. The gas after filtering out the carbon dioxide is recirculated into the inhalation branch 340b.

[0052] The memory 350 may be used to store data or programs, such as data collected by various sensors, data generated by the processor after calculation, or image frames generated by the processor, which may be 2D or 3D images, or the memory 350 may store a graphical user interface, one or more default image display settings, and programming instructions for the processor. The memory 350 may be a tangible and non-transitory computer-readable medium, such as flash memory, RAM, ROM, EEPROM, etc.

[0053] The processor 30 is used to execute instructions or programs, control the breathing assistance device 320, the air source interface 310 and / or various control valves in the breathing circuit, or process the received data to generate the required calculation or judgment results, or generate visual data or graphics, and output the visual data or graphics to the display 50 for display.

[0054] The above is some description of the medical equipment as anesthesia machine. It should be noted that the above Figure 4 This is just an example of an anesthesia machine, and it is not intended to limit the anesthesia machine to have only such a structure.

[0055] The above describes some examples of medical devices such as patient monitors, patient monitoring modules, and medical ventilation devices such as ventilators or anesthesia machines. The medical device of the present application can collect the patient's respiratory parameters through the sensor 10, and process them through the processor 30, and the display 50 visualizes the processing results, which is described in detail below.

[0056] The sensor 10 is used to collect at least one respiratory parameter of the patient, such as the gas flow rate of the patient during ventilation, and another example is the pressure of the patient during ventilation, which reflects the pressure acting on different sites of the patient's respiratory system during ventilation, such as one or more of airway pressure, intrathoracic pressure, carina pressure, intrapulmonary pressure, esophageal pressure and intragastric pressure. They are described below.

[0057] In some embodiments, the sensor 10 may be a flow sensor, so that the gas flow rate of the patient during ventilation can be collected. In some embodiments, the gas flow rate of the patient during ventilation includes at least the inspiratory flow rate of the patient. In some embodiments, the sensor 10 may be a flow sensor disposed at the patient end, such as a flow sensor disposed at the patient interface, and the gas flow rate is the gas flow rate collected by the flow sensor during inspiration. In some embodiments, the number of flow sensors is multiple, including an inspiratory flow sensor and an expiratory flow sensor disposed at the mechanical ventilation end, for example, for a ventilator, it may be an inspiratory flow sensor disposed in the inspiratory branch 213b and an expiratory flow sensor disposed in the expiratory branch 213a, and for an anesthesia machine, it may be an inspiratory flow sensor disposed in the inspiratory branch 340b and an expiratory flow sensor disposed in the expiratory branch 340a; the gas flow rate is the difference between the flow rates collected by the inspiratory flow sensor and the expiratory flow sensor during inspiration. In some embodiments, the flow sensor can also be a Ypiece flow sensor, which directly measures the flow rate of the patient's end flowing in and out as the gas flow rate. Of course, the energy acting on the patient's respiratory system during mechanical ventilation can be calculated by considering the gas flow rate during the entire breathing period, including the gas flow rate during inspiration and expiration.

[0058] In some embodiments, the number of the pressure sensor 10 is one or more. The pressure sensor 10 is used to collect the pressure of the patient during ventilation, and the pressure reflects the pressure acting on different sites of the patient's respiratory system during ventilation, such as one or more of airway pressure, intrathoracic pressure, carina pressure, intrapulmonary pressure, esophageal pressure, and intragastric pressure.

[0059] In some embodiments, the sensor 10 can be a pressure sensor, such as a catheter pressure sensor or an optical fiber pressure sensor, etc. By extending the pressure sensor into the corresponding site of the patient's respiratory system, the pressure of the corresponding site can be measured. For example, by extending the pressure sensor into the patient's airway, the airway pressure can be collected, by extending the pressure sensor into the esophagus, the esophageal pressure can be collected, by extending the pressure sensor into the stomach, the gastric pressure can be collected, by extending the pressure sensor into the carina inside the trachea, the carina pressure can be collected, by extending the pressure sensor into the stomach, the gastric pressure can be collected, and by extending the pressure sensor into the chest cavity through an incision, the chest pressure can be collected. Of course, the esophageal pressure can also be used to approximately replace the chest pressure. In some embodiments, the pressure of some sites in the respiratory system can also be used to replace or calculate the pressure of other sites, which is explained below through several examples.

[0060] In some embodiments, the carina pressure may be used to replace the intrapulmonary pressure. In some embodiments, the esophageal pressure may be used to replace the intrathoracic pressure. In some embodiments, the intragastric pressure may be used to replace the intraabdominal pressure.

[0061] In some embodiments, the processor 30 can calculate the intrapulmonary pressure based on the airway pressure. For example, in some embodiments, the processor 30 calculates the intrapulmonary pressure by the airway pressure, the real-time volume and the above-mentioned gas flow rate. In a specific example, it can be calculated by the following formula:

[0062]

[0063] Where Plung(t) refers to the function of the intrapulmonary pressure changing with time t, or the real-time intrapulmonary pressure; V(t) refers to the function of the volume changing with time, or the real-time volume; Paw(t) refers to the function of the airway pressure changing with time t, or the real-time airway pressure; Flow(t) is the function of the gas flow rate of the patient during ventilation changing with time t, or the real-time gas flow rate of the patient during ventilation; PEEP is the positive end-expiratory airway pressure, which can be measured in cmH2O; τ is the time constant, which can be calculated by the following formula:

[0064]

[0065] In some embodiments, the processor 30 may calculate the transpulmonary pressure by subtracting the esophageal pressure or the intrathoracic pressure from the intrapulmonary pressure or the airway pressure. For example, the transpulmonary pressure is obtained by subtracting the esophageal pressure from the airway pressure. In some embodiments, the processor 30 may also correct the transpulmonary pressure, which is described in detail below.

[0066] In some embodiments, the processor 30 further corrects the transpulmonary pressure by using the airway pressure value and the esophageal pressure value when the positive end expiratory pressure is zero and non-zero; specifically, the processor 30 obtains the airway pressure Paw when the positive end expiratory pressure is non-zero. PEEP and esophageal pressure Pes PEEP , and obtain the airway pressure Paw when the positive end-expiratory pressure is zero ZEEP and esophageal pressure Pes ZEEP ; The processor 30 adds the transpulmonary pressure (Paw PEEP -Paw ZEEP ) and subtract (Pes PEEP -Pes ZEEP ) to obtain the corrected transpulmonary pressure.

[0067] In some embodiments, the processor 30 further corrects the transpulmonary pressure value by lung compliance and chest wall compliance; specifically, the processor 30 obtains the static lung compliance Clung and the static chest wall compliance Ccw; it should be noted that there are many methods for the processor 30 to obtain the static lung compliance Clung and the chest wall compliance Ccw, for example, the processor 30 can obtain the static chest wall compliance Ccw by the following formula:

[0068]

[0069] TV is the tidal volume, PesI is the end-inspiratory esophageal pressure, and PEEP is the es is the end-expiratory esophageal pressure; it should be noted that, in some embodiments, the tidal volume TV can be obtained by accumulating the gas flow rate.

[0070] The static total compliance C can then be calculated by the following formula state :

[0071]

[0072] Where TV is the tidal volume, Pplat is the plateau pressure, and PEEP is the positive airway pressure at end-expiration. It should be noted that the plateau pressure Pplat can be considered as the end-inspiratory pressure, for example, the average pressure 100ms before switching from exhalation to breathing.

[0073] The static total compliance C is calculated state and the static chest wall compliance Ccw, the static lung compliance Clung can be calculated by solving the following equation:

[0074]

[0075] After obtaining the static lung compliance Clung and the static chest wall compliance Ccw, the processor 30 may calculate the error compensation value by the following formula:

[0076]

[0077] where ΔPtrans erro is the error compensation value, Ptrans is the transpulmonary pressure value, and Plung is the intrapulmonary pressure value;

[0078] The processor 30 subtracts the error compensation value from the transpulmonary pressure to obtain a corrected transpulmonary pressure.

[0079] In some embodiments, the processor 30 can calculate the transdiaphragmatic pressure by subtracting either the intra-abdominal pressure or the intra-gastric pressure from either the intra-thoracic pressure or the esophageal pressure. For example, the transdiaphragmatic pressure is obtained by subtracting the intra-gastric pressure from the esophageal pressure. It should be noted that in some embodiments, the intra-abdominal pressure can be collected by inserting a pressure sensor into the abdomen through an incision. In some embodiments, the processor 30 can also calibrate the transdiaphragmatic pressure. For example, the processor 30 obtains the esophageal pressure Pes when the positive end-expiratory pressure is non-zero. PEEP and intragastric pressure Psto PEEP , and obtain the esophageal pressure Pes when the positive end-expiratory pressure is zero ZEEP and intragastric pressure Psto ZEEP ; Processor 30 adds transdiaphragmatic pressure (Pes PEEP -Pes ZEEP ) and subtract (Psto PEEP -Psto ZEEP ) to obtain the corrected transdiaphragmatic pressure.

[0080] The above are some explanations of airway pressure, intrathoracic pressure, carina pressure, intrapulmonary pressure, esophageal pressure and intragastric pressure, intra-abdominal pressure, transpulmonary pressure and transdiaphragmatic pressure.

[0081] It can be seen from the above description that in some embodiments, there may be multiple sensors 10, and the multiple sensors 10 may include pressure sensors and flow sensors. Therefore, in some embodiments, the respiratory parameters of the patient that can be collected by the medical device through the sensor 10 are the gas flow rate of the patient during ventilation and the pressure of the patient during ventilation.

[0082] In some embodiments, the processor 30 obtains a target of a ventilation control parameter and a ventilation therapy strategy, and calculates a target of at least one associated control parameter according to the target of the ventilation control parameter and the ventilation therapy strategy. The following describes how the processor 30 obtains the target of the ventilation control parameter and the ventilation therapy strategy.

[0083] In some embodiments, the processor 30 may determine the target of the ventilation control parameter in response to the received ventilation control parameter target command. In some embodiments, the processor 30 determines the target of the ventilation control parameter based on one or more of the respiratory parameters or patient information. The patient information may be the patient's gender, age, and past medical history.

[0084] In some embodiments, the processor 30 determines the ventilation therapy strategy in response to the received command to obtain ventilation therapy strategy. In some embodiments, the processor 30 determines the ventilation therapy strategy based on one or more of the respiratory parameters or patient information. In some embodiments, the ventilation therapy strategy includes a minimum work of breathing strategy.

[0085] It can be seen that the processor 30 can automatically set the target of the ventilation control parameter and obtain the ventilation treatment strategy according to one or more of the respiratory parameters or patient information, and can also set the target of the ventilation control parameter and obtain the ventilation treatment strategy according to the user input. Therefore, in some embodiments, the patient's respiratory state can be displayed so that the user can issue a ventilation control parameter target command or a ventilation treatment strategy command according to the displayed patient's respiratory state. Specifically, in some embodiments, the processor 30 generates the patient's respiratory state according to the respiratory parameters, and the display 50 displays the generated patient's respiratory state. In some embodiments, when it is determined that the patient's respiratory state has changed according to the respiratory parameters, the processor 30 generates a prompt message for prompting. Further, the doctor can re-formulate a new ventilation control parameter target\or ventilation treatment strategy according to the prompt message, or the medical ventilation device can automatically trigger the change of the ventilation control parameter target and\or ventilation treatment strategy according to the prompt message when the respiratory parameters change. In this article, the respiratory state is generated according to the respiratory parameters. As mentioned above, the respiratory parameters can be the gas flow rate of the patient during ventilation and the pressure of the patient during ventilation. According to these two, the patient's compliance and time constant can be calculated as the patient's respiratory state. The compliance here may refer to the total compliance of the patient, including static total compliance and / or dynamic total compliance. The compliance here may also refer to the patient's lung compliance, etc., including static lung compliance and / or dynamic lung compliance. In some embodiments, the patient's dynamic total compliance and time constant are calculated and displayed as the patient's respiratory state. If the patient's respiratory state changes, it may refer to the change of its respiratory state from one state to another. For example, taking the patient's compliance as an example, the change of its compliance may refer to the change of a value in one range of compliance to a value in another range.

[0086] The above is some description of the processor 30 obtaining the target of the ventilation control parameter and obtaining the ventilation therapy strategy. In some embodiments, the processor 30 calculates the target of at least one associated control parameter according to the target of the ventilation control parameter and the ventilation therapy strategy. In some embodiments, the processor 30 also calculates the recommended range of the ventilation control parameter and at least one associated control parameter.

[0087] In some embodiments, the processor 30 obtains ventilation parameters characterizing the ventilation state of the patient based on the acquired respiratory parameters. In some embodiments, the ventilation parameters include one or more of ventilation control parameters or associated control parameters. Specifically, the ventilation control parameters may include minute ventilation; the associated control parameters may include tidal volume and / or respiratory rate.

[0088] In some embodiments, the processor 30 generates and outputs a visualization graphic according to the patient's ventilation parameters, the target of the ventilation control parameters, and the target of at least one associated control parameter, and displays the patient's ventilation state, the target of the ventilation control parameters, and the target of at least one associated control parameter through the visualization graphic. The display 50 displays the content generated by the processor 30, such as the above-mentioned visualization graphic.

[0089] The following may be explained by the adaptive support ventilation mode developed from the command minute ventilation mode. In the adaptive support ventilation mode of some embodiments, the ventilation control parameter may be minute ventilation, the associated control parameters may include tidal volume and respiratory rate, and the respiratory state may include the patient's compliance and time constant.

[0090] First, the target of minute ventilation is set, which can be set by the user or automatically by the device, and the ventilation treatment strategy is set, such as the minimum work of breathing strategy, and then the target of tidal volume and the target of respiratory frequency are calculated according to the set target of minute ventilation and the minimum work of breathing strategy. Specifically, since the patient's work of breathing can be calculated by the patient's compliance and tidal volume, and the minute ventilation can be calculated by the patient's tidal volume and respiratory frequency, under the constraint of the minimum work of breathing condition, the target of minute ventilation is known, so the corresponding tidal volume and respiratory frequency values ​​can be solved and used as the target of tidal volume and the target of respiratory frequency, respectively. Therefore, when the current values ​​of the patient's ventilation parameters such as minute ventilation, tidal volume and respiratory frequency are the target of minute ventilation, tidal volume and respiratory frequency, respectively, it means that the patient is ventilating in the state of minimum work of breathing.

[0091] This mode of ventilation, which allows patients to ventilate in a state of minimal work of breathing, is essentially a lung-protective ventilation that allows patients to match a better tidal volume and respiratory rate under the expected minute ventilation volume, so as to achieve or approach and maintain the ventilation treatment goal of minimal work of breathing in real time to the greatest extent possible.

[0092] In this ventilation mode, the device dynamically monitors the patient's respiratory state, such as dynamic compliance and time constant, in real time according to the set minute ventilation target, and then calculates and matches the target tidal volume and respiratory rate required by the patient in real time, and then performs ventilation control in real time, so as to achieve or approach and maintain the patient in a ventilation state with minimum breathing work in real time to the greatest extent. Therefore, in this ventilation mode, the user is very concerned about the tidal volume, respiratory rate, minute ventilation, and even the patient's dynamic compliance and time constant that the device actually controls for ventilation, so that the user can intuitively judge whether the patient's respiratory state and ventilation state are within the recommended range, judge whether the trend of changes in the ventilation process meets the expected treatment purpose, and decide whether it is necessary to adjust the strategy in time according to the patient's respiratory state and ventilation state when necessary, such as changing the ventilation control parameters to basically switch the ventilation mode.

[0093] Therefore, in some embodiments, the processor 30 generates and outputs a visualization graphic based on the patient's ventilation parameters, the target of the ventilation control parameters, and the target of at least one associated control parameter, and displays the patient's ventilation status, the target of the ventilation control parameters, and the target of at least one associated control parameter through the visualization graphic. The display 50 displays the content generated by the processor 30, such as the above-mentioned visualization graphic. In some specific embodiments, the visualization graphic displays the patient's ventilation status by displaying at least one of the current value and change trend of the ventilation parameter. In some other embodiments, the processor 30 calculates the recommended range of the ventilation control parameter and at least one associated control parameter, and displays it in the display 50 through the visualization graphic. In some embodiments, each ventilation parameter has a corresponding visualization graphic, so the visualization graphic also has the parameter name of the corresponding ventilation parameter, and preferably, it can also have the unit name of the corresponding ventilation parameter.

[0094] There are many ways to display visualization graphics, such as ring charts, bar charts, two-dimensional curve charts with time as the horizontal and vertical axes, and altimeter charts, etc. Examples are given below to illustrate each of them.

[0095] Please refer to Figure 5. In some embodiments, the visualization graph includes a ring diagram, which includes an arc representing a numerical range and a first indicator such as a pointer for indicating the current value of the corresponding ventilation parameter. In some embodiments, a number representing the current value of the corresponding ventilation parameter is also provided near the first indicator. In some embodiments, the arc also has a number representing the numerical value at the corresponding position of the arc. In some embodiments, the arc includes a safety segment for indicating the recommended range of the corresponding ventilation parameter, wherein the safety segment is displayed in a manner different from other segments of the arc, such as a safety segment and other segments are different colors. In some embodiments, a second indicator for indicating the target of the corresponding ventilation parameter is also provided on the arc, and preferably, a number representing the target of the corresponding ventilation parameter is also provided near the second indicator. In some embodiments, the number representing the current value of the corresponding ventilation parameter is also provided near it. A third indicator for indicating the trend of change of the corresponding ventilation parameter is also provided; or, a two-dimensional coordinate curve graph or digital table for indicating the trend of change of the corresponding ventilation parameter is also provided near the ring diagram. In the example of FIG5 , the arc segment of the semicircle is a donut chart, MV represents minute ventilation, i.e., the name of the ventilation parameter corresponding to the donut chart, L / min near MV represents the unit, the numerical values ​​6.0 and 9.0 on the arc segment of the semicircle represent the value of MV represented at the corresponding position on the arc segment, the arc segment filled with lines in the figure is the safety segment, and the arc segment is also provided with a second indicator, i.e., the black filled scale in the figure, which represents the target minute ventilation, and the attachment is also provided with a numerical value representing the target size of the minute ventilation, i.e., 8.6 in the figure. 7.2 represents The current value of MV is pointed to the corresponding position on the arc segment by the first indicator, i.e., the pointer in the figure. In FIG5(a), an upward arrow, i.e., the third indicator, is provided to the right of 7.2. When the arrow is pointing upward, it indicates that the change trend of the minute ventilation is increasing. Otherwise, it indicates that the change trend of the minute ventilation is decreasing. In FIG5(b), a two-dimensional coordinate curve graph of the change trend of the minute ventilation is displayed below the annular graph for the user to view. In FIG5(c), a digital table of the change trend of the minute ventilation is displayed below the annular graph for the user to view. Figure 6 This is an example of simultaneously displaying a circular graph of minute ventilation, tidal volume, and respiratory rate, where TV refers to tidal volume and f refers to respiratory rate.

[0096] Please refer to Figures 7(a), 7(b) and 7(c). In some embodiments, the visualization graph includes a bar graph, which includes a bar graph segment representing a numerical range and a fourth indicator for indicating the current value of the corresponding ventilation parameter. In some embodiments, a number representing the current value of the corresponding ventilation parameter is also provided near the fourth indicator. In some embodiments, the bar segment also has a number representing the numerical value at the corresponding position of the bar segment. In some embodiments, the bar segment includes a safety segment for corresponding to the recommended range of the ventilation parameter, wherein the safety segment is displayed in a manner different from other segments of the bar segment, for example, the safety segment and other segments are different colors. In some embodiments, a fifth indicator for indicating the target of the corresponding ventilation parameter is also provided on the bar segment, and preferably, a number representing the target of the corresponding ventilation parameter is also provided near the fifth indicator. In some embodiments, the number representing the current value of the corresponding ventilation parameter is also provided near the sixth indicator for indicating the change trend of the corresponding ventilation parameter; or, a two-dimensional coordinate curve graph or digital table for indicating the change trend of the corresponding ventilation parameter is also provided near the bar graph. In the examples of Figures 7(a), 7(b) and 7(c), MV represents minute ventilation, i.e., the name of the ventilation parameter corresponding to the bar graph, and L / min near MV represents the unit. 6.0, 8.6 and 9.0 on the left side of the vertical column segment respectively represent the values ​​at their corresponding positions. The column segment filled with lines in the figure is the safety segment. A fifth indicator is also provided on the column segment, i.e., the black filled scale in the figure, which represents the target minute ventilation, and an additional indicator is provided to represent the target size of the minute ventilation, i.e., 8.6 in the figure. 7.2 represents the current value of MV, and through the fourth indicator, i.e., the black filled triangle head in the figure, it points to the corresponding position on the column segment. In FIG7(a), an upward arrow, i.e., the third indicator, is provided on the right side of 7.2. When the arrow is pointing upward, it indicates that the change trend of the minute ventilation is increasing, and vice versa, it indicates that the change trend of the minute ventilation is decreasing. In FIG7(b), a two-dimensional coordinate curve graph of the change trend of the minute ventilation is displayed on the right side of the bar graph for the user to view; in FIG7(c), a digital table of the change trend of the minute ventilation is displayed on the right side of the bar graph for the user to view. Figure 8 1 is an example of displaying the histograms of minute ventilation, tidal volume and respiratory rate simultaneously, where TV refers to tidal volume and f refers to respiratory rate. In some embodiments, the histograms corresponding to different ventilation parameters are distributed in rotational symmetry or side by side. Figure 8 An example of side-by-side distribution of bar graphs corresponding to various ventilation parameters. Fig. 9An example of rotationally symmetrical distribution of the bar graphs corresponding to each ventilation parameter. In some other embodiments, the values ​​of different ventilation parameters on the corresponding bar graphs at the same time are connected to form line segments, and the line segments at different times are displayed in different ways, for example, the line segments at the current time are displayed in a first color, and the line segments at previous times are displayed in a second color and its brightness, such as displaying the line segments at the current time in blue and displaying the line segments at previous times in gray, wherein the darker the brightness of the gray, the closer it is to the current time. Fig.10 is an example. The place where the line is engraved on the bar segment on each bar graph in the figure is the fourth indicator. The values ​​of minute ventilation, tidal volume and respiratory rate on the corresponding bar graphs at the same time are connected to form a line segment. The densest dotted line segment in the figure represents the line segment at the current moment, the second densest dotted line segment represents the line segment of the previous minute, and the third densest dotted line segment represents the line segment of the previous minute.

[0097] Please refer to Fig.11 In some embodiments, the visualization graph includes a two-dimensional curve graph, the horizontal axis of the two-dimensional curve graph is time, and the vertical axis is the corresponding ventilation parameter; the two-dimensional curve graph has a first curve generated by the current value of the corresponding ventilation parameter at different times. This means that each ventilation parameter corresponds to a two-dimensional curve graph. In some embodiments, the two-dimensional curve graph also has a second curve generated by the target of the ventilation parameter at different times of the corresponding ventilation parameter. In some embodiments, the second curve is displayed in a different manner from the first curve, for example, the color of the first curve is black and the color of the second curve is gray. Fig.11 As an example, MV refers to minute ventilation. The first curve in the figure is a solid line segment, and the second curve is a dotted line segment. Fig.12 is an example of simultaneously displaying a bar graph of minute ventilation, tidal volume, and respiratory rate, where TV refers to tidal volume and f refers to respiratory rate. In some embodiments, when the processor 30 determines that the patient has reached a minimum work of breathing state, the processor 30 also generates an area on the two-dimensional curve graph indicating that the patient has reached a minimum work of breathing state, and the display 50 displays accordingly, for example, displaying an area on the two-dimensional curve graph indicating that the patient has reached a minimum work of breathing state. For example Fig.13 The area enclosed by the dotted rectangle in the figure represents the area where the patient reaches the minimum breathing work state. In some embodiments, the processor 30 further calculates and controls the display 50 to display the time percentage of the patient reaching the minimum breathing work state within the preset time period, for example Fig.13 The column segment on the right side of the figure shows that 30% represents the proportion of time from the start time to the current time when the patient reaches the minimum breathing work state.

[0098] Please refer to Fig.14In some embodiments, the visualization graph includes an altimeter-like graph, the altimeter-like graph includes a vertical line segment with a scale, and a circle; the circle includes a seventh indicator representing the current value of the corresponding ventilation parameter, the seventh indicator is a horizontal chord within the circle, the chord corresponds to the scale of the line segment and represents the current value of the corresponding ventilation parameter; in some embodiments, the circle also includes a suggestion area representing the recommended range of the corresponding ventilation parameter, the suggestion area is displayed in a manner different from other areas of the circle, for example, the suggestion area is filled with gray, and other areas are white; in some embodiments, the circle is also provided with an eighth indicator for representing the target of the corresponding ventilation parameter, the eighth indicator is the horizontal diameter of the circle, and the height of the circle is set so that its horizontal diameter corresponds to the scale value of the line segment as the target of the corresponding ventilation parameter. In some embodiments, a two-dimensional coordinate curve graph or digital table for representing the trend of changes in the corresponding ventilation parameter is also provided near the altimeter-like graph. Fig.14 As an example, the area between the chords of the two dotted lines in the circle is the suggested area.

[0099] The above are some descriptions of medical equipment.

[0100] In some embodiments of the present application, a method for displaying ventilation information of a medical ventilation device is also disclosed. The medical ventilation device provides respiratory support for a patient. The medical ventilation device may be a ventilator or anesthesia machine disclosed herein.

[0101] Please refer to Fig.15 In some embodiments, the ventilation information display method comprises the following steps:

[0102] Step 1000: Obtain at least one respiratory parameter of a patient connected to the medical ventilation device. The respiratory parameter may be obtained by the sensor 10 disclosed above, for example, including the gas flow rate of the patient during ventilation, and for example, including the pressure of the patient during ventilation, the pressure reflecting the pressure acting on different sites of the patient's respiratory system during ventilation, such as one or more of airway pressure, intrathoracic pressure, carina pressure, intrapulmonary pressure, esophageal pressure, and intragastric pressure. For further explanation, please refer to the above description, which will not be repeated here.

[0103] Step 1010: Obtain a target of a ventilation control parameter.

[0104] In some embodiments, step 1010 may be to determine the target of the ventilation control parameter in response to the received ventilation control parameter target command. In some embodiments, step 1010 may be to determine the target of the ventilation control parameter based on one or more of the respiratory parameters or patient information. The patient information may be the patient's gender, age, and past medical history.

[0105] Step 1020: Obtain ventilation treatment strategy.

[0106] In some embodiments, step 1020 may be to determine the ventilation therapy strategy in response to the received obtain ventilation therapy strategy command. In some embodiments, step 1020 may be to determine the ventilation therapy strategy based on one or more of the respiratory parameters or patient information. In some embodiments, the ventilation therapy strategy includes a minimum work of breathing strategy.

[0107] It can be seen that the target of the ventilation control parameter and the ventilation treatment strategy can be automatically set according to one or more of the respiratory parameters or patient information, and the target of the ventilation control parameter and the ventilation treatment strategy can also be set according to the user input. Therefore, in some embodiments, the patient's respiratory state can be displayed so that the user can issue a ventilation control parameter target command or a ventilation treatment strategy command according to the displayed patient's respiratory state. Specifically, in some embodiments, there is also a step: generating and displaying the patient's respiratory state according to the respiratory parameters. In some embodiments, there is also a step: when it is determined that the patient's respiratory state has changed according to the respiratory parameters, a prompt is given. Further, the doctor can re-formulate a new ventilation control parameter target\or ventilation treatment strategy according to the prompt information, or the medical ventilation device can automatically trigger the change of the ventilation control parameter target and\or ventilation treatment strategy according to the prompt information when the respiratory parameters change. In this article, the respiratory state is generated according to the respiratory parameters. As mentioned above, the respiratory parameters can be the gas flow rate of the patient during ventilation and the pressure of the patient during ventilation. According to these two, the patient's compliance and time constant can be calculated as the patient's respiratory state. The compliance here may refer to the total compliance of the patient, including static total compliance and / or dynamic total compliance. The compliance here may also refer to the patient's lung compliance, etc., including static lung compliance and / or dynamic lung compliance. In some embodiments, the patient's dynamic total compliance and time constant are calculated and displayed as the patient's respiratory state. If the patient's respiratory state changes, it may refer to the change of its respiratory state from one state to another. For example, taking the patient's compliance as an example, the change of its compliance may refer to the change of a value in one range of compliance to a value in another range.

[0108] Step 1030: Calculate a target of at least one associated control parameter based on the target of the ventilation control parameter and the ventilation therapy strategy. In some embodiments, step 1030 also calculates a recommended range of the ventilation control parameter and at least one associated control parameter.

[0109] Step 1040: Obtain ventilation parameters characterizing the patient's ventilation state based on the acquired respiratory parameters. In some embodiments, the ventilation parameters include one or more of ventilation control parameters or associated control parameters. Specifically, the ventilation control parameters may include minute ventilation; the associated control parameters may include tidal volume and / or respiratory rate.

[0110] Step 1050: Generate and output a visualization graph according to the patient's ventilation parameters, the target of the ventilation control parameters, and the target of at least one associated control parameter, and display the patient's ventilation status, the target of the ventilation control parameters, and the target of at least one associated control parameter through the visualization graph. In some specific embodiments, the visualization graph displays the patient's ventilation status by displaying at least one of the current value and the change trend of the ventilation parameter. In some other embodiments, the visualization graph is used to display the recommended range of the ventilation control parameter and at least one associated control parameter. In some embodiments, each ventilation parameter has a corresponding visualization graph, so the visualization graph also has the parameter name of the corresponding ventilation parameter, and preferably, it can also have the unit name of the corresponding ventilation parameter. There are many ways to display the visualization graph, such as a ring graph, a bar graph, a two-dimensional curve graph with time as the horizontal and vertical axes, and an altimeter-shaped graph, which have been fully described above and will not be repeated here.

[0111] This document is described with reference to various exemplary embodiments. However, those skilled in the art will recognize that changes and modifications may be made to the exemplary embodiments without departing from the scope of this document. For example, various operating steps and components for performing the operating steps may be implemented in different ways (e.g., one or more steps may be deleted, modified, or incorporated into other steps) depending on the specific application or considering any number of cost functions associated with the operation of the system.

[0112] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. In addition, as understood by those skilled in the art, the principles of this article can be reflected in a computer program product on a computer-readable storage medium, which is pre-installed with a computer-readable program code. Any tangible, non-temporary computer-readable storage medium can be used, including magnetic storage devices (hard disks, floppy disks, etc.), optical storage devices (CD to ROM, DVD, Blu Ray disks, etc.), flash memory and / or the like. These computer program instructions can be loaded onto a general-purpose computer, a special-purpose computer or other programmable data processing device to form a machine, so that these instructions executed on a computer or other programmable data processing device can generate a device that implements a specified function. These computer program instructions can also be stored in a computer-readable memory, which can instruct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory can form a manufactured product, including an implementation device that implements a specified function. Computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operating steps are performed on a computer or other programmable device to generate a computer-implemented process, so that the instructions executed on a computer or other programmable device can provide steps for implementing a specified function.

[0113] Although the principles of this invention have been shown in various embodiments, many modifications of structures, arrangements, proportions, elements, materials and components particularly suitable for specific environments and operational requirements can be used without departing from the principles and scope of this invention. The above modifications and other changes or amendments will be included in the scope of this invention.

[0114] The foregoing specific description has been described with reference to various embodiments. However, those skilled in the art will recognize that various modifications and changes can be made without departing from the scope of the present disclosure. Therefore, the consideration of the present disclosure will be illustrative rather than restrictive, and all these modifications will be included in its scope. Similarly, the advantages, other advantages and solutions to the problems of various embodiments have been described above. However, the benefits, advantages, solutions to the problems and any elements that can produce these, or make them more clear, should not be interpreted as critical, necessary or necessary. The term "include" and any other variants used in this article are all non-exclusive inclusions, so that the process, method, article or device including the list of elements not only includes these elements, but also includes other elements that are not explicitly listed or do not belong to the process, method, system, article or device. In addition, the term "coupled" and any other variants used in this article refer to physical connections, electrical connections, magnetic connections, optical connections, communication connections, functional connections and / or any other connections.

[0115] Those skilled in the art will appreciate that many changes may be made to the details of the above-described embodiments without departing from the basic principles of the invention. Therefore, the scope of the present invention should be determined solely by the claims.

Claims

1. A ventilation information display device, characterized in that: include: monitor; one or more sensors for collecting at least one respiratory parameter of a patient connected to the medical ventilation device; A processor for performing the following steps: obtaining at least one respiratory parameter of the patient; Obtaining goals for ventilation control parameters; Obtain ventilation treatment strategies; Calculating a target of at least one associated control parameter according to the target of the ventilation control parameter and the ventilation therapy strategy; Obtaining ventilation parameters characterizing the ventilation state of the patient according to the acquired respiratory parameters, wherein the ventilation parameters include the ventilation control parameters and at least one of the associated control parameters; A visualization graphic is generated and outputted according to the ventilation parameters of the patient, the target of the ventilation control parameters and the target of at least one of the associated control parameters, and the ventilation parameters of the patient, the target of the ventilation control parameters and the target of at least one of the associated control parameters are displayed on the display through the visualization graphic.

2. The ventilation information display device according to claim 1, characterized in that: The processor obtains a target of a ventilation control parameter, including: In response to a received ventilation control parameter target command, determining a target for the ventilation control parameter; or, A target for the ventilation control parameter is determined based on one or more of the breathing parameter or the patient information.

3. The ventilation information display device according to claim 1, characterized in that: The processor obtains a ventilation therapy strategy, including: In response to a received command to obtain a ventilation therapy strategy, determining the ventilation therapy strategy; or, The ventilation therapy strategy is determined according to one or more of the respiratory parameters or the patient information.

4. The ventilation information display device according to claim 2 or 3, characterized in that: The processor is further configured to generate and display the patient's respiratory status according to the respiratory parameters.

5. The ventilation information display device according to claim 2 or 3, characterized in that: The processor is also used to give a prompt when it is determined based on the respiratory parameters that the patient's respiratory state has changed.

6. The ventilation information display device according to claim 1, characterized in that: The processor is further configured to calculate a recommended range of a ventilation control parameter and at least one associated control parameter, and display the recommended ranges through the visualization graph.

7. The ventilation information display device according to claim 1, characterized in that: The visualization graph displays the ventilation status of the patient by displaying at least one of a current value and a change trend of a ventilation parameter; Alternatively, the visualization graph further has parameter names of ventilation parameters.

8. The ventilation information display device according to claim 1, characterized in that: The ventilation control parameter includes minute ventilation; the associated control parameter includes tidal volume and / or respiratory rate.

9. The ventilation information display device according to claim 1, characterized in that: The visualization graph includes a doughnut graph including a circular arc representing a numerical range and a first indicator for representing a current value of a corresponding ventilation parameter.

10. The ventilation information display device according to claim 9, characterized in that: The arc also has numbers indicating the values ​​at the corresponding positions of the arc.

11. The ventilation information display device according to claim 9, characterized in that: The circular arc includes a safety segment for representing a recommended range of a corresponding ventilation parameter, wherein the safety segment is displayed in a manner different from other segments of the circular arc.

12. The ventilation information display device according to claim 9, characterized in that: The arc is also provided with a second indicator for indicating the corresponding ventilation parameter target; preferably, a number indicating the corresponding ventilation parameter target is also provided near the second indicator.

13. The ventilation information display device according to claim 9, characterized in that: A number indicating the current value of the corresponding ventilation parameter is also provided near the first indicator; Preferably, a third indicator for indicating a changing trend of the corresponding ventilation parameter is provided near the number indicating the current value of the corresponding ventilation parameter; or a two-dimensional coordinate curve chart or digital table for indicating a changing trend of the corresponding ventilation parameter is provided near the annular graph.

14. The ventilation information display device according to claim 1, characterized in that: The visualization graph includes a bar graph, wherein the bar graph includes a bar segment representing a numerical range and a fourth indicator for representing a current value of a corresponding ventilation parameter.

15. The ventilation information display device according to claim 14, characterized in that: The columnar segment also has a number indicating the value at the corresponding position of the columnar segment; And / or, the columnar segment includes a safety segment for corresponding to a recommended range of ventilation parameters, wherein the safety segment is displayed in a manner different from other segments of the columnar segment; And / or, a fifth indicator for indicating a target of a corresponding ventilation parameter is further provided on the columnar segment, and optionally, a number indicating the target of the corresponding ventilation parameter is further provided near the fifth indicator.

16. The ventilation information display device according to claim 14, characterized in that: A number indicating the current value of the corresponding ventilation parameter is also provided near the fourth indicator; Preferably, a sixth indicator for indicating a changing trend of the corresponding ventilation parameter is provided near the number indicating the current value of the corresponding ventilation parameter; or a two-dimensional coordinate curve chart or digital table for indicating a changing trend of the corresponding ventilation parameter is provided near the bar graph.

17. The ventilation information display device according to claim 14, characterized in that: When there are multiple ventilation parameters, the bar graphs corresponding to different ventilation parameters are distributed in rotational symmetry or in parallel.

18. The ventilation information display device according to claim 17, characterized in that: The values ​​of different ventilation parameters on the corresponding bar graphs at the same time are connected to form line segments, and the line segments at different times are displayed in different ways.

19. The ventilation information display device according to claim 17, characterized in that: The line segments at different moments are displayed in different ways, including: displaying the line segments at the current moment in a first color, and displaying the line segments at previous moments in a second color and its brightness.

20. The ventilation information display device according to claim 1, characterized in that: The visualization graph includes a two-dimensional curve graph, the abscissa of which is time and the ordinate is the corresponding ventilation parameter; the two-dimensional curve graph has a first curve generated by current values ​​of the corresponding ventilation parameter at different times.

21. The ventilation information display device according to claim 20, characterized in that: The two-dimensional curve graph further has a second curve generated by the targets of the ventilation parameters corresponding to the ventilation parameters at different moments; preferably, the second curve is displayed in a manner different from the first curve.

22. The ventilation information display device according to claim 20, characterized in that: The ventilation therapy strategy includes a minimum work of breathing strategy; When it is determined that the patient has reached the minimum work of breathing state, a region indicating that the patient has reached the minimum work of breathing state is also generated on the two-dimensional curve graph.

23. The ventilation information display device according to claim 1 or 20, characterized in that: The processor also calculates and displays the percentage of time that the patient reaches the minimum breathing work state within a preset time period.

24. The ventilation information display device according to claim 1, characterized in that: When the ventilation therapy strategy is a minimum work of breathing strategy, the processor calculates the target of at least one associated control parameter based on the target of the ventilation control parameter and the ventilation therapy strategy, including: monitoring the patient's compliance and time constant, and calculating the patient's tidal volume target and / or respiratory rate target based on the set minute ventilation target, the patient's compliance and time constant.

25. The ventilation information display device according to claim 1, characterized in that: The visualization graph includes an altimeter-like graph, which includes a vertical line segment with a scale and a circle; the circle includes a seventh indicator representing the current value of the corresponding ventilation parameter, and the seventh indicator is a horizontal chord within the circle, and the chord corresponds to the scale of the line segment, representing the current value of the corresponding ventilation parameter.

26. The ventilation information display device according to claim 25, characterized in that: The circle also includes a suggestion area representing a suggested range of the corresponding ventilation parameter, and the suggestion area is displayed in a manner different from other areas of the circle.

27. The ventilation information display device according to claim 25, characterized in that: The circle is also provided with an eighth indicator for indicating a target corresponding to the ventilation parameter. The eighth indicator is the horizontal diameter of the circle. The height of the circle is set so that the horizontal diameter corresponds to the scale value of the line segment, which is the target corresponding to the ventilation parameter.

28. The ventilation information display device according to any one of claims 25 to 27, characterized in that: A two-dimensional coordinate curve graph or a digital table for representing the changing trend of the corresponding ventilation parameters is also provided near the altimeter-shaped graph.

29. A medical device comprising the ventilation information display device according to any one of claims 1 to 28.

Images