CN114144219A

CN114144219A - Anesthesia machine and method for controlling anesthesia evaporator

Info

Publication number: CN114144219A
Application number: CN201980098613.4A
Authority: CN
Inventors: 黄成华; 潘瑞玲; 黄继萍
Original assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Current assignee: Shenzhen Mindray Bio Medical Electronics Co Ltd
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2022-03-04
Anticipated expiration: 2039-10-09
Also published as: CN114144219B; WO2021068137A1

Abstract

An anesthesia machine (100) and method of controlling an anesthetic vaporizer (105), the anesthesia machine (100) directly providing at least two anesthetic vaporizers (105) enabling a user to visually see two or more types of anesthetic vaporizer controls to enable fast switching of the currently used type of anesthetic vaporizer (105); secondly, the use information of the anesthetic vaporizer (105) can be directly displayed on the anesthesia machine (100), so that a user can intuitively learn the operation state, the dosage information, the anesthetic concentration information, the flow rate information and the like of the anesthetic vaporizer (105), and the problems of uncovering, low liquid level and the like of the anesthetic vaporizer (105) can be directly determined.

Description

Anesthesia machine and method for controlling anesthesia evaporator

Technical Field

The invention relates to medical equipment, in particular to an anesthesia machine and an anesthesia evaporator control method thereof.

Background

In medical equipment, an anesthesia machine is widely used as a medical instrument indispensable for surgical anesthesia, and has the main functions of inhaling a proper amount of anesthesia mixed gas for a surgical patient, supplying a certain proportion of oxygen to ensure normal breathing, maintaining and monitoring vital signs of the patient in the operation in the process of implementing general anesthesia, and ensuring safe and reliable operation. The performance of the anesthesia machine is directly related to whether the operation can be normally carried out, so the safety, reliability and accuracy of the equipment are important indexes for measuring the quality of the anesthesia machine.

The anesthetic vaporizer is one of the key components of the anesthetic machine, and the basic principle is that the anesthetic drug is changed into vaporized gas by utilizing the change of the temperature of the surrounding environment and a heat source, and a certain amount of carrier gas is used, wherein a part of gas carries away saturated anesthetic gas to form gas flow with a certain concentration of anesthetic vapor, and the gas flow directly enters an anesthetic loop. Different anesthetics have different pharmacological properties. For example, sevoflurane (Sev) has a pleasant gas, is less irritating, and can be used in the induction phase of the patient; for another example, desflurane (Des) has low blood solubility and low fat solubility, and can be used for anesthesia maintenance because the anesthesia precision can be adjusted more quickly and accurately. Therefore, it is necessary to use different anesthetics at different surgical stages during the surgical procedure depending on the nature of the anesthetic. Anesthetic vaporizers are classified into different kinds according to kinds of medicines, such as an enflurane (Enf) vaporizer, an isoflurane (Iso) vaporizer, a sevoflurane (Sev) vaporizer, a halothane vaporizer, a desflurane (Des) vaporizer, and the like. In order to facilitate timely replacement of anesthetic, two or more anesthetic vaporizers can be disposed or installed on the anesthesia machine. In addition, only one anesthetic vaporizer is in an open state when the anesthetic vaporizer is used for preventing the mutual pollution of different anesthetics.

For an anesthesia machine equipped with two or more electronic anesthetic vaporizers, the selection and setting of the vaporizers are usually performed on a human-computer interface, and only one currently used anesthetic vaporizer control is usually displayed on the human-computer interface. If a user wants to switch to other types of anesthetic vaporizers, an additional anesthetic vaporizer selection menu is firstly opened through the operation of a human-computer interface, then the type of the anesthetic vaporizer to be used is selected in the popped anesthetic vaporizer selection menu (namely, the anesthetic vaporizer to be used is selected), and then the user clicks to confirm that the switching operation of the anesthetic vaporizers is completed; after the switching is completed, other subsequent slave operations are performed, such as adjusting the concentration of the anesthetic vaporizer.

Fig. 1 and 2 each show a schematic diagram of an anesthetic vaporizer switching process. As shown in fig. 1 or fig. 2, an anesthetic vaporizer type selection portal 10 and a currently in-use vaporizer control 20 are typically displayed on the human machine interface (of course, respiration-related controls such as control 40 may also be presented on the human machine interface). The anesthetic agent in the vaporizer currently being used in the illustration is Sev. When it is desired to switch to another anesthetic vaporizer (e.g., Des), the user is required to first select the vaporizer type selection inlet 10 (which may be implemented in various ways, such as a touch screen click mode as shown in fig. 1, an operation of the rotary encoder mode as shown in fig. 2, and other modes, such as a hard key press, etc.), pop up the anesthetic vaporizer type selection menu 30, select the anesthetic vaporizer type to be used therein by operating the rotary encoder, and then confirm the selection. In the illustration of fig. 1, switching of anesthetic vaporizers is accomplished by clicking the "ok" button, and switching of anesthetic vaporizers is canceled by clicking the "cancel" button; the switching of the anesthetic vaporizer may also be accomplished by pressing a rotary encoder as shown in fig. 2 or other confirmation button (not shown).

In any way, the switching operation process of the anesthetic vaporizer is relatively complicated; in addition, although the anesthesia machine is actually provided with two types of evaporators, only one type of evaporator can be seen on the human-computer interface, and other types of evaporators cannot be seen visually.

Technical problem

The invention mainly provides an anesthesia machine and an anesthesia evaporator control method thereof.

Technical solution

According to a first aspect, there is provided in one embodiment an anesthesia machine comprising: the anesthesia output equipment comprises at least two anesthesia evaporators, and the anesthesia evaporators respectively output the stored anesthetic and the input gas after mixing; a breathing circuit connected to the anesthetic vaporizer and a respiratory system of a patient; the anesthesia controller is connected with the anesthesia output equipment; the ventilation controller is connected with the respiratory circuit, provides ventilation support for the patient through the respiratory circuit and outputs the mixed gas output by the anesthetic vaporizer to the patient; the control input equipment comprises at least two anesthesia control input devices which respectively correspond to the at least two anesthesia evaporators, and the anesthesia control input devices receive anesthesia control information input by a user and output the anesthesia control information to the anesthesia controllers; the anesthesia controller controls the output of the corresponding anesthesia evaporator according to the anesthesia control information output by the corresponding anesthesia control input device.

According to a second aspect, an embodiment provides a method for controlling anesthetic vaporizers in an anesthesia machine, such that an anesthesia output device, an anesthesia controller and a control input device are configured on the anesthesia machine, the anesthesia output device includes at least two anesthetic vaporizers, each anesthetic vaporizer mixes a stored anesthetic with an input gas and outputs the mixture, the anesthesia controller is connected to the anesthesia output device, the control input device includes at least two anesthesia control inputs respectively corresponding to the at least two anesthetic vaporizers, the anesthesia control inputs receive anesthesia control information input by a user and output the anesthesia control information to the anesthesia controller, wherein the anesthesia control information includes a target anesthetic device input by the user, and the target anesthetic device corresponds to one anesthetic vaporizer in the anesthesia output device; and the anesthesia control input device outputs the received target evaporator to the anesthesia controller, the anesthesia controller controls the anesthesia output device to enable the anesthesia evaporator corresponding to the target anesthesia device, the anesthesia evaporator is enabled to be the currently used anesthesia evaporator, and the rest anesthesia evaporators are enabled to stop outputting.

According to a third aspect, an embodiment provides a computer readable storage medium comprising a program executable by a processor to implement the method as described above.

Advantageous effects

According to the anesthesia machine of the embodiment, firstly, the information of the evaporator equipment can be directly displayed on the electronic display interface, so that a user can visually see two or more types of anesthesia evaporator controls so as to rapidly switch the currently used type of anesthesia evaporator; and secondly, the use information of the evaporator can be directly displayed on the electronic display interface, so that a user can visually learn the operation state, the dosage information, the anesthetic concentration information, the flow rate information and the like of the anesthetic evaporator, and the problems of uncovering, low liquid level and the like of the anesthetic evaporator can be directly determined.

Drawings

FIG. 1 is an operational schematic of a switching between evaporators;

FIG. 2 is another operational schematic of switching between multiple evaporators;

FIG. 3 is a block diagram of the generation of fresh gas for an anesthesia machine;

FIG. 4 is a schematic perspective view of an anesthesia machine of an embodiment;

FIG. 5 is a block diagram of an anesthesia machine according to an exemplary embodiment;

6-8 illustrate display example diagrams of electronic display interfaces in different embodiments;

FIG. 9 is a diagram illustrating an example of an alarm when the evaporator cover is open in one embodiment;

FIG. 10 is a graph illustrating an example of an alarm in an embodiment in which the amount of drug in the vaporizer is less than a predetermined threshold;

FIG. 11 shows an exemplary diagram of evaporator parameter settings in one embodiment.

Modes for carrying out the invention

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

Furthermore, the features, operations, or characteristics described in the specification may be combined in any suitable manner to form various embodiments. Also, the various steps or actions in the method descriptions may be transposed or transposed in order, as will be apparent to one of ordinary skill in the art. Thus, the various sequences in the specification and drawings are for the purpose of describing certain embodiments only and are not intended to imply a required sequence unless otherwise indicated where such sequence must be followed.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The function of the anesthesia machine is to perform inhalation anesthesia and mechanical ventilation on a patient during surgery. As shown in figure 3, during the operation of the anesthesia machine, the gas inhaled by the patient is recycled in a closed loop with a soda lime tank (CO 2 for absorbing carbon dioxide exhaled by the body). Due to the consumption of gas in the circuit (such as oxygen O2, etc. absorbed by human body) and leakage, it needs to be replenished continuously. An independent path is provided for the anesthesia machine to continuously supply supplemental gas, commonly referred to as fresh gas, to the patient breathing circuit. The formation of fresh gas is generally divided into two steps: (1) oxygen and balance gas (e.g., Air or nitrous oxide N2O) are mixed at different flow rates in the flow monitor; (2) the mixed gas output by the flow monitor forms fresh gas after passing through an anesthetic volatilization pot (namely, an anesthetic evaporator) and is delivered to a breathing circuit of a patient.

In the embodiment of the application, the vaporizer equipment information and/or vaporizer use information of the anesthetic vaporizer is directly displayed in a control mode, so that a user can intuitively perceive the working state of the anesthetic vaporizer, and the user can directly and rapidly switch when the anesthetic machine is configured with two or more anesthetic vaporizers. The present application will be described in detail below by way of examples in conjunction with the accompanying drawings.

Example 1:

referring to fig. 4 and 5, the anesthesia machine 100 of the present embodiment includes a gas source (not shown), a breathing circuit assembly 107, an anesthesia output device, an anesthesia controller 105, and a human-machine interaction assembly 102. The anesthesia machine 100 may be loaded on a cart 103, which may be wheeled 104 for ease of movement.

The gas source is used for providing gas. The gas may be oxygen, nitrous oxide (laughing gas), air, or the like. In some embodiments, the gas source is a compressed gas cylinder (or a central gas supply source) and the gas supply is oxygen O2, laughing gas N2O, air, or the like. The gas source may also include conventional components such as pressure gauges, pressure regulators, flow meters, pressure relief valves, and N2O-O2 proportional control protection devices, which are not described in detail herein. The anesthesia machine 100 of the present embodiment is configured with three flow regulating selectors 106 for controlling the flow of oxygen, laughing gas and air, respectively, although it is understood that the number may not be limited to three.

An anesthesia delivery device comprises at least two anesthesia vaporizers 101. The anesthetic agent is generally in a liquid state and the anesthetic vaporizer 101 stores and vaporizes the anesthetic agent. The gas source is communicated with the anesthetic vaporizer, so that the gas output by the gas source and the vaporized anesthetic gas form mixed gas, and the mixed gas is output. The gas output by the gas source can be divided into a branch to enter the anesthetic vaporizer. The anesthetic vaporizer converts the anesthetic agent into anesthetic vapor and delivers it in a volume into the breathing circuit assembly 107, which provides the mixed gas with anesthetic vapor to the patient. In some embodiments, an electrically controlled vaporizer can be formed in combination with a microcomputer and a sensor, and can be configured to include a vaporization chamber and a bypass chamber. An electronic flow control valve may be positioned at the outlet of the evaporation chamber. The control valve is controlled by a CPU in the tank, the CPU receives the information of the concentration control panel of the evaporation tank, receives the information provided by the pressure and temperature sensors in the evaporation chamber and the flow meters at the outlets of the evaporation chamber and the bypass chamber, simultaneously receives the information provided by gas monitoring, and accurately controls the flow valve after comprehensive analysis so as to achieve the expected inhalation anesthetic concentration. The use of the electronic evaporating pot realizes automation of anesthetic concentration control, reduces the possibility of manual misoperation, and improves the safety of inhalation anesthesia.

The breathing circuit assembly 107 includes a breathing circuit 1072 and an airway controller 1071. The breathing circuit 1072 includes an inspiratory pathway and an expiratory pathway. The gas source and anesthetic vaporizer are in communication with an inspiratory line for communication with a patient's respiratory system for delivering the mixed gas into the patient's respiratory system. The exhalation passageways are used to expel exhaled gases from the patient. The breathing circuit is a gas circuit device which is connected with the anesthesia machine and the patient. It is responsible for delivering the anesthetic gas mixture to the patient, recovering the gas exhaled by the patient, and discharging the excess anesthetic gas into a residual gas collection system. In some embodiments, the breathing circuit may be provided with more than one control valve to open and close the respective inhalation and exhalation passages by controlling the control valves as required. For example, the control valve may include: inhalation valves, exhalation valves, APL valves, PEEP valves, and the like. In some embodiments, the exhalation pathway may be closed to the inhalation pathway, thereby allowing the patient's exhaled gases to be re-routed back into the inhalation pathway. For this, the inhalation and exhalation passages may be provided with CO2 absorbers to filter out CO2 in the exhaled air.

A ventilation controller 1071 communicates with the breathing circuit 1072 for driving the flow of the mixed gas to the patient. The ventilation controller 1071 is used to assist and control patient breathing during anesthesia and is an integral part of the anesthesia machine. The anesthesia machine can be provided with two breathing modes of machine control and manual control, and the breathing modes can be switched by a machine control/manual control switch. In the manual mode, the breathing circuit is connected to a manual air bag, and the anaesthetist controls the breathing of the patient by manually pressing the air bag. In a mechanical-controlled manner, the ventilation controller 1071 is connected to the breathing circuit 1072 to assist the patient in breathing according to a set breathing pattern (e.g., PCV, VCV, SIMV), and breathing parameters. The operation principle of the ventilation controller 1071 is simply that: the air bag is pressed by a machine instead of manually, so that the breath of the patient is controlled. The ventilation controller 1071 may be pneumatically controlled, pneumatically controlled or electrically controlled. Among the three types of ventilation controllers, the electric control ventilation controller is the most accurate and stable, and saves anesthesia cost. The device is characterized in that the device does not need driving gas, and can still control the breath of a patient as accurately as a breathing machine under the condition of no gas supply. In some embodiments, the ventilation controller 1071 is also used to control the opening and closing of the inspiratory and expiratory pathways, which may be accomplished by controlling the open and closed states of corresponding control valves on the inspiratory and expiratory pathways. For example, during the inspiration phase, the ventilation controller 1071 may control the inspiration valve on the inspiration path to open and the expiration valve on the expiration path to close, so that the patient can inhale the gas smoothly; during the breathing phase, the ventilation controller 1071 may control the exhalation valve in the exhalation path to open and the inhalation valve in the inhalation path to close, so that the patient can exhale the gas smoothly.

The anesthesia controller 105 is connected to the anesthesia output device, and controls the operation of each anesthesia evaporator 101, such as controlling the opening and closing of the anesthesia evaporator, and controlling the output of the corresponding anesthesia evaporator according to the anesthesia control information outputted from the control input device of the human-computer interaction component 102. In one embodiment, the anesthesia control information may include at least one of an anesthetic vaporizer output anesthetic concentration, an anesthetic vaporizer output speed, a patient inhaled anesthetic concentration, or a patient exhaled anesthetic concentration.

In other embodiments, the anesthesia machine may further comprise a residual gas collection system. The system has the main functions of treating gas (mainly redundant anesthetic gas, CO2 is absorbed by the absorber) exhaled by a patient, ensuring that the exhausted gas does not pollute the ambient air, ensuring the cleanness of the working environment of the operation and preventing the health of medical staff from being injured. The sweep gas removal system may include: residual gas collecting device, pipeline, connecting device, residual gas processing pipe. The cleaning mode mainly comprises pipeline leading to the outside, chemical adsorption, or vacuum pump leading and the like. For example, the residual gas may be purified by using a filter containing an adsorbent such as activated carbon. In still other embodiments, the anesthesia machine may further comprise a gas safety monitoring system comprising: low oxygen pressure automatic cut-off device, various pressure, capacity and concentration monitoring components and fault alarm device. The real-time monitoring device has several parameters, such as gas flow, gas pressure, respiration frequency, oxygen concentration in the inhaling end, CO2 concentration in the end-expiratory part, etc. controlled, processed and displayed by microcomputer, and the alarm device monitors in real time. The monitoring system displays the measured values and the pressure waveform to an anesthesiologist, and the anesthesiologist adjusts parameters of the anesthesia machine according to related information.

The human-computer interaction component 102 comprises a control input device, the control input device comprises at least two anesthesia control input units 1022 respectively corresponding to the at least two anesthesia vaporizers, and the anesthesia control input units 1022 receive the anesthesia control information input by the user and output the anesthesia control information to the anesthesia controller 105. When the anesthesia machine 100 is equipped with a plurality of types of anesthetic vaporizers 101, such as Des vaporizers, Sev vaporizers, Iso vaporizers, etc., since the number of anesthetic control inputs presented to the user is the same as and corresponds to the number of anesthetic vaporizers, the user can quickly perform the switching operation of the anesthetic vaporizers without the need for multiple steps of operation as described in the background above.

In one embodiment, the anesthesia control input device may include a touch button; in another specific implementation, the anesthesia control input device may include a physical button, for example, a hard button provided on an operation panel of the anesthesia machine, through which one-key switching can be performed between the anesthetic vaporizers, i.e., the user can switch the currently used anesthetic vaporizer to the target vaporizer (which is the anesthetic vaporizer to be switched by the user) so that the target vaporizer is the currently used anesthetic vaporizer. In yet another implementation, the anesthesia control input may include both touch keys and physical keys that work in concert to facilitate user operation.

Example 2:

the anesthesia machine 100 of the present embodiment is almost the same as that of embodiment 1, except that, as shown in fig. 5, the human-computer interaction component 102 further has an electronic display interface 1021, wherein the electronic display interface 1021 can display the usage information of the corresponding anesthetic vaporizer. The usage information of the anesthetic vaporizer may include at least one of: the working state of the anesthetic evaporator, the liquid level of the anesthetic, the residual amount of the anesthetic, the concentration of the anesthetic, the output speed of the anesthetic, the evaporation speed of the anesthetic and the like. It is to be appreciated that the anesthetic vaporizer control displayed on the electronic display interface 1021 of the human machine interaction component 102 corresponds to the anesthetic vaporizer 101 that is present as an actual physical entity. In addition, other information of the anesthesia machine 100, such as gas flow information (shown in FIG. 7), may also be displayed on the electronic display interface 1021. In addition, the electronic display interface 1021 may be an electronic display screen with a touch function, and in this case, each anesthesia control input unit 1022 is a touch button or a control presented on the electronic display interface 1021, so that a user can control the operation of the anesthesia machine 100 by touching the electronic display screen, for example, adjusting the air flow, switching the anesthesia evaporator, and the like.

In the present embodiment, the electronic display interface 1021 dynamically presents the anesthesia control inputs 1022 and the vaporizer usage information directly in a control graphical manner. The anesthesia controller 105 is connected to the human-computer interaction module 102 and the anesthesia vaporizer 101, respectively, and monitors and controls the operation of the anesthesia vaporizer, and causes the electronic display interface 1021 to refresh the displayed content according to the monitored information, and further causes the electronic display interface 1021 to refresh the displayed content according to the input information of the anesthesia control input unit 1022.

When the anesthesia machine 100 is configured with multiple types of anesthesia vaporizers 101, such as Des vaporizer, Sev vaporizer, Iso vaporizer, etc., all of the anesthesia vaporizer controls and their respective anesthesia control inputs 1022 can be directly presented in a control manner on the electronic display interface 1021.

The electronic display interface 1021 can display all anesthetic vaporizer controls configured for the anesthesia machine in a graphical visualization manner by adopting at least one of icons, colors and characters. For example, in the example of fig. 6, 7, or 8, where the anesthesia machine is configured with Sev vaporizers and Iso vaporizer, Sev vaporizer control 1021-1 and Iso vaporizer control 1021-2 corresponding to the two vaporizers are simultaneously displayed on electronic display interface 1021, and the illustrations are presented simultaneously in a side-by-side manner.

In addition, the control of the anesthetic vaporizer currently in the working state and the control of the anesthetic vaporizer currently in the non-working state can be displayed on the electronic display interface 1021 in a manner of at least one of highlighting, color, font and icon. Taking fig. 6 as an example, the anesthetic vaporizer currently in operation is an Sev vaporizer, and at this time, a control 1021-1 of Sev vaporizer is highlighted on the electronic display interface 1021. Of course, in a specific implementation, whether each anesthetic vaporizer is in an operating state may also be indicated by other forms of indication information, status lights, and the like, which are not described herein.

In this embodiment, the anesthesia control inputs 1022 may include a target anesthetic vaporizer that receives a user selection from all types of anesthetic vaporizers configured by the anesthesia machine 100 to replace the anesthetic vaporizer currently in use. The anesthesia controller 105 then causes the electronic display interface 1021 to refresh its display based on the received anesthesia control information, for example, by instead highlighting the Iso vaporizer control 1021-2.

In another specific implementation, the human-computer interaction component 102 may be an electronic display screen with a touch function, and a user may directly click a target anesthetic vaporizer control in an electronic display interface 1021 of the electronic display screen to implement operations such as switching of anesthetic vaporizers, and turning on or off of related anesthetic vaporizers; taking fig. 6 as an example, the user may ask whether the user switches the anesthetic vaporizer by selecting (for example, clicking or double clicking or pressing for a long time) the Iso vaporizer control in the diagram, and if the user selects to confirm the switching (certainly, the confirmation dialog box may not be popped up, and the switching confirmation is directly realized by double clicking or pressing for a long time, etc.), the anesthesia control input unit 1022 transmits the received information to the anesthesia controller 105, and the anesthesia controller 105 sends an instruction to the anesthesia vaporizer 101 to realize the physical switching (specifically, the switching may be realized by the related art, and will not be described in detail here).

Obviously, no matter the hard key mode or the touch mode is adopted, the user can intuitively know all types of anesthetic vaporizers, and the switching operation of the anesthetic vaporizers can be quickly realized without needing to realize the switching operation by multi-step operation as described in the foregoing background technology.

Example 3:

the anesthesia machine 100 of this embodiment is almost the same as embodiment 1, except that the electronic display interface 1021 is used to directly present vaporizer usage information in a controlled manner. Wherein the evaporator usage information may include at least one of: the working state of the anesthetic evaporator, the liquid level of the anesthetic, the residual amount of the anesthetic, the concentration of the anesthetic and the flow rate of the output gas. The working state of the anesthetic vaporizer comprises a normal working state, an abnormal working state and a non-working state. The abnormal operating condition may include at least one of: the anesthetic vaporizer is in an uncapped state, the anesthetic vaporizer is in a dosing state, and the residual amount of anesthetic in the anesthetic vaporizer is insufficient. The inactive state may include a state in which the anesthetic vaporizer is turned off, suspended, etc., while the anesthetic vaporizer is inactive.

In one implementation, the level, the amount, the concentration, and the flow rate of the output gas of the anesthetic can be dynamically displayed on the electronic display interface 1021 in at least one of a text, a bar graph, a meter graph, a pie graph, and a line graph. In the example of FIG. 7, the rate at which anesthesia is output by the currently used anesthetic vaporizer is shown on the electronic display interface 1021 as a meter graphical control 1021-3. Taking fig. 8 as an example, the dosage information (i.e. information of the remaining dosage in the anesthetic vaporizer) of all the anesthetic vaporizers (i.e. Sev vaporizers and Iso vaporizers) is shown on the electronic display interface by the bar-shaped graphic control 1021-3 in combination with text. Of course, the related information may also be shown in or in combination with other means (e.g., highlighting), etc.

In yet another implementation, the operating status of the anesthetic vaporizer may be dynamically presented on the electronic display interface 1021 in at least one of an icon, a color, a text, a brightness, and a sound, and may include, for example, whether the anesthetic vaporizer is operating properly, whether the anesthetic vaporizer is open, whether the amount of drug contained in the anesthetic vaporizer is insufficient, and the like. The anesthesia machine 100 may further comprise an alarm unit which gives an alarm in at least one of icon, color, text, brightness and sound when the anesthetic vaporizer is in an abnormal operation state. For example, as shown in fig. 9, during the process of dosing an anesthetic vaporizer (e.g., Sev vaporizer), the cover of Sev vaporizer is opened, the electronic display interface 1021 presents an uncovering reminder, and a warning is given in the form of text "Lid Open" combined with a highlight flash 1021-4. For another example, as shown in fig. 10, the anesthetic controller 105 monitors the amount of drug in the anesthetic vaporizer currently used in real time, and when the monitored amount of drug is smaller than a preset threshold, causes a low level reminder to be issued in a blinking manner (e.g., 1021-5).

In another specific implementation, when an anesthesia controller on the anesthesia machine monitors that the corresponding anesthetic vaporizer contains insufficient drug, the anesthesia machine can provide the function of automatically switching or manually switching the anesthetic vaporizer. For example, the anesthesia machine 100 may issue an alarm (e.g., prompted by a pop-up dialog box on the electronic display interface 1021) to prompt the user whether to automatically switch to another anesthesia vaporizer, which the anesthesia machine automatically switches based on the confirmation entered by the user. In another example, the anesthesia machine can send a reminding signal to remind the user to manually switch the anesthesia evaporator.

Example 4:

the anesthesia machine 100 of this embodiment is almost the same as embodiment 2, except that information for adjusting the vaporizer usage information by the user is received through the anesthesia control input 1022. In one specific implementation, the electronic display interface 1021 of the human-computer interaction component 102 may be a touch display screen, and dynamically presents each anesthesia control input unit in a graphical control manner, so that the anesthesia control input unit 102 can receive input information in a touch manner. For example, as shown in fig. 11, the parameter setting of the anesthetic vaporizer can be realized by touching a certain use message (for example, reference numerals 1021-6) on the electronic display interface 1021 to make it editable, and then inputting the message. Of course, other control operations on the anesthetic vaporizer may also be received through the graphical control component on the electronic display interface 1021, for example, the operations of turning on and off the corresponding anesthetic vaporizer may be implemented by clicking the corresponding anesthetic vaporizer icon.

Based on the foregoing embodiments, the present application further provides a method of controlling an anesthetic vaporizer in an anesthesia machine. In the method, an anesthesia output device, an anesthesia controller and a control input device are configured on an anesthesia machine, the anesthesia output device comprises at least two anesthesia evaporators, each anesthesia evaporator respectively mixes and outputs stored anesthetic with input gas, the anesthesia controller is connected with the anesthesia output device, the control input device comprises at least two anesthesia control input devices respectively corresponding to the at least two anesthesia evaporators, the anesthesia control input devices receive anesthesia control information input by a user and output the anesthesia control information to the anesthesia controller, wherein the anesthesia control information comprises a target anesthesia device input by the user, and the target anesthesia device corresponds to one anesthesia evaporator in the anesthesia output device; and enabling the anesthesia control input device to output the received target evaporator to the anesthesia controller, enabling the anesthesia controller to control the anesthesia output device to enable the anesthesia evaporator corresponding to the target anesthesia apparatus, enabling the anesthesia evaporator to be the currently used anesthesia evaporator, and enabling the rest anesthesia evaporators to stop outputting.

In an embodiment of the method, in another embodiment, the electronic display interface 1021 dynamically displays and displays the anesthesia control input units and the corresponding vaporizer usage information directly in a control graphical manner, the method further includes enabling the anesthesia controller to monitor the dosage of the currently used anesthesia vaporizer in real time, and when it is monitored that the dosage of the currently used anesthesia vaporizer is smaller than a preset threshold, an alarm may be issued through the electronic display interface 1021 in at least one of an icon, a color, a text, a brightness, and a sound. In another embodiment, the method further comprises the step of enabling the anesthetic controller to monitor whether the currently used anesthetic vaporizer is uncapped in real time, and when it is monitored that the currently used anesthetic vaporizer is still in an uncapped state within a preset period of time, an alarm is given in at least one of icon, color, text, brightness and sound.

In summary, according to the anesthesia machine and the method for controlling the anesthesia evaporator in the anesthesia machine provided by the embodiment of the present application, all the evaporator adjustment controls installed on the anesthesia machine can be displayed on the electronic display interface 1021 at the same time, and a user can directly select and adjust one anesthesia evaporator; in the anesthesia machine or method, only one anesthesia evaporator is in an open state at the same time, and if one anesthesia evaporator is opened, the other anesthesia evaporator is automatically closed, and the function can be controlled and realized by the anesthesia controller. In addition, the anesthetic vaporizer being used may visualize the height display on the UI and the anesthetic vaporizer current liquid level is visualized quantitatively and qualitatively. For example, the user can qualitatively evaluate the dosage of the evaporator through a liquid level bar graph, quantitatively and accurately evaluate the dosage of the evaporator through a liquid level value, give an alarm to the user in a mode of background flickering when the dosage is lower than a certain threshold value, or prompt the user to manually switch the anesthetic evaporator or add medicine, or prompt the user to determine whether to automatically switch the anesthetic evaporator. In addition, in the drug adding process of the anesthetic vaporizer, a user needs to open the cover of the vaporizer, so that the electronic display interface supports cover opening reminding, and whether the vaporizer is opened or not can be presented in a graphical mode.

Reference is made herein 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 hereof. For example, the various operational steps, as well as the components used to perform the operational steps, may be implemented in differing ways depending upon the particular application or consideration of any number of cost functions associated with operation of the system (e.g., one or more steps may be deleted, modified or incorporated into other steps).

Additionally, as will be appreciated by one skilled in the art, the principles herein may be reflected in a computer program product on a computer readable storage medium, which is pre-loaded with computer readable program code. Any tangible, non-transitory computer-readable storage medium may be used, including magnetic storage devices (hard disks, floppy disks, etc.), optical storage devices (CD-ROMs, DVDs, Blu Ray disks, etc.), flash memory, and/or the like. These computer program instructions may be loaded onto a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions which execute on the computer or other programmable data processing apparatus create means for implementing the functions specified. These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including means for implementing the function specified. The computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified.

While the principles herein have been illustrated in various embodiments, many modifications of structure, arrangement, proportions, elements, materials, and components particularly adapted to specific environments and operative requirements may be employed without departing from the principles and scope of the present disclosure. The above modifications and other changes or modifications are intended to be included within the scope of this document.

The foregoing detailed description has been described with reference to various embodiments. However, one skilled in the art will recognize that various modifications and changes may be made without departing from the scope of the present disclosure. Accordingly, the disclosure is to be considered in an illustrative and not a restrictive sense, and all such modifications are intended to be included within the scope thereof. Also, advantages, other advantages, and solutions to problems have been described above with regard to various embodiments. However, the benefits, advantages, solutions to problems, and any element(s) that may cause any element(s) to occur or become more pronounced are not to be construed as a critical, required, or essential feature or element of any or all the claims. As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, system, article, or apparatus. Furthermore, the term "coupled," and any other variation thereof, as used herein, refers to a physical connection, an electrical connection, a magnetic connection, an optical connection, a communicative connection, a functional connection, and/or any other connection.

Those skilled in the art will recognize that many changes may be made to the details of the above-described embodiments without departing from the underlying principles of the invention. Accordingly, the scope of the invention should be determined from the following claims.

Claims

An anesthesia machine, characterized by comprising:

the anesthesia output equipment comprises at least two anesthesia evaporators, and the anesthesia evaporators respectively output the stored anesthetic and the input gas after mixing;

a breathing circuit connected to the anesthetic vaporizer and a respiratory system of a patient;

the anesthesia controller is connected with the anesthesia output equipment;

the ventilation controller is connected with the respiratory circuit, provides ventilation support for the patient through the respiratory circuit and outputs the mixed gas output by the anesthetic vaporizer to the patient; and

the control input equipment comprises at least two anesthesia control input devices which respectively correspond to the at least two anesthesia evaporators, and the anesthesia control input devices receive anesthesia control information input by a user and output the anesthesia control information to the anesthesia controllers;

the anesthesia controller controls the output of the corresponding anesthesia evaporator according to the anesthesia control information output by the corresponding anesthesia control input device.
The anesthesia machine of claim 1, wherein the number of anesthesia control inputs is the same as the number of anesthesia vaporizers, and wherein each anesthesia control input is in a one-to-one correspondence with each anesthesia vaporizer.
The anesthesia machine of claim 1, wherein the anesthesia control information comprises at least one of an anesthetic vaporizer output anesthetic concentration, an anesthetic vaporizer output anesthetic speed, a patient inhaled anesthetic concentration, or a patient exhaled anesthetic concentration.
The anesthesia machine of claim 1, wherein the anesthesia control input comprises a touch key and/or a physical key.
The anesthesia machine of claim 1, further comprising an electronic display interface that displays usage information for a corresponding anesthesia vaporizer.
The anesthesia machine of claim 5, wherein said electronic display interface is a touch-sensitive display screen, said electronic display interface dynamically presenting each of said anesthesia control inputs in a graphical control.
The anesthesia machine of claim 5, wherein the operating conditions of the anesthetic vaporizer comprise a normal operating condition, an abnormal operating condition and a non-operating condition, the abnormal operating condition comprising: the anesthetic vaporizer is in one or more of an uncapping state, a dosing state and the insufficient residual anesthetic amount.
The anesthesia machine of claim 1, wherein the anesthesia controller detects that the residual amount of anesthetic agent in an anesthetic vaporizer is insufficient, and at least one of an icon, a color, a text, a brightness, and a sound is used to send an alarm, or a warning signal is sent to remind a user to switch anesthetic vaporizers, or to automatically switch anesthetic vaporizers.
A method for controlling an anesthetic vaporizer in an anesthesia machine,

the anesthesia machine is provided with anesthesia output equipment, an anesthesia controller and control input equipment, wherein the anesthesia output equipment comprises at least two anesthesia evaporators, each anesthesia evaporator respectively mixes and outputs stored anesthetic with input gas, the anesthesia controller is connected with the anesthesia output equipment, the control input equipment comprises at least two anesthesia control input devices respectively corresponding to the at least two anesthesia evaporators, and the anesthesia control input devices receive anesthesia control information input by a user and output the anesthesia control information to the anesthesia controller;

and controlling the output of the corresponding anesthetic evaporator by the anesthetic controller according to the anesthetic control information output by the corresponding anesthetic control input device.
The method of claim 9, further comprising: the number of the anesthesia control input devices is the same as that of the anesthesia evaporators, and each anesthesia control input device is in one-to-one correspondence with each anesthesia evaporator.
The method of claim 9, wherein the anesthesia control information comprises at least one of an anesthetic vaporizer output anesthetic concentration, an anesthetic vaporizer output anesthetic speed, a patient inhaled anesthetic concentration, or a patient exhaled anesthetic concentration.
The method of claim 9, wherein the anesthesia control input is a touch button and/or a physical button.
The method of claim 9, further comprising:

the anesthesia machine is provided with an electronic display interface which displays the use information of the corresponding anesthesia evaporator.
The method of claim 13, wherein the electronic display interface is a touch-sensitive display screen, and wherein the electronic display interface dynamically presents each of the anesthesia control input devices in a graphical control.
The method of claim 13, wherein the operating conditions of the anesthetic vaporizer include a normal operating condition, an abnormal operating condition, and a non-operating condition, the abnormal operating condition including: the anesthetic vaporizer is in one or more of an uncapping state, a dosing state and the insufficient residual anesthetic amount.
The method of claim 9, wherein the method further comprises:

the anesthesia controller monitors the dosage of the anesthesia evaporator in real time, and when the monitored dosage of the anesthesia evaporator is smaller than a preset threshold value, an alarm is sent in at least one mode of icon, color, characters, brightness and sound, or a reminding signal is sent to remind a user of switching the anesthesia evaporator, or the anesthesia evaporator is automatically switched.
The method of claim 9, wherein the method further comprises:

the anesthesia controller monitors whether the anesthesia evaporator is opened in real time, and when the anesthesia evaporator is still in an open state within a preset period of time, an alarm is given out in at least one mode of icons, colors, characters, brightness and sound.