JP2003126257A - Anesthetic system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anesthetic system displaying comprehensively the operation state of an anesthetizing device, the state of a patient, the state of the device and the error. SOLUTION: This anesthetizing system 50 is equipped with at least an anesthetizer main body, and an anesthetic circulating circuit. In this case, the anesthetizer main body mixes a nitrous oxide gas, an oxygen gas and a volatile anesthetic, and feeds them as a fresh gas. The anesthetic circulating circuit mixes the fresh gas fed from the anesthetizer main body in the circulating air for which carbon dioxide has been removed by absorption from the exhalation of the patient, mixes the circulating air and the fresh gas, and feeds the mixed gas to the patient as the inspiring gas. Thus, the anesthetizing system anesthetizes the patient by feeding the inspiring gas containing the anesthetizing gas from the anesthetic circulating circuit to the patient. Such an anesthetizing system has a data master unit 58 and a display section 59. In this case, the data master unit 58 has a patient simulator unit 54 which estimates an intake anesthetic amount after a specified period of time passes from the present time. The display section 59 displays the data from the data master unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anesthesia apparatus capable of safely performing anesthesia. More specifically, it is possible to understand necessary items such as an operation state of an anesthesia apparatus, a patient state, an inspection of the apparatus, and an error display. The present invention relates to an anesthesia device having a function of easily displaying.

[0002]

2. Description of the Related Art The applicant calculates the oxygen uptake amount and the carbon dioxide gas discharge amount of each breath of a patient under anesthesia, calculates the balance of the anesthetic agent, and displays the calculated values on the display unit. An anesthesia device that can easily perform low-flow anesthesia by displaying the metabolic state in real time has been developed and has already applied for a patent (Japanese Patent Laid-Open No. 2001-95).
921). FIG. 12 shows the above-mentioned JP 2001-9
It is a figure which shows the anesthesia apparatus described in 5921 gazette.
This conventional anesthesia device 1 includes an anesthesia machine main body 2 that supplies at least a laughing gas, an oxygen gas, and a volatile anesthetic,
Fresh gas containing laughing gas, oxygen gas, and a volatile anesthetic supplied from the anesthesia device main body 2 is mixed into the breath of the patient A, and the circulating air and the fresh gas are mixed as an inspiration. It is roughly divided into the anesthesia circulation circuit 3 to be sent to the patient A. The anesthesia machine main body 2 includes a gas supply unit 10 for supplying an anesthetic gas containing a laughing gas, a flow meter 11 for measuring a flow rate of the anesthetic gas supplied from the gas supply unit 10, and a volatile anesthetic in the anesthetic gas. The vaporizer 12 supplies the agent in a vaporized state.

The gas supply unit 10 adjusts the pressure of oxygen gas, laughing gas, and air supplied from the outside, and
The pressure at that time is displayed. The vaporizer 12
Is a volatile anesthetic, halothane, enflurane, isoflurane, sevoflurane, and desflurane, etc., is sent to the vaporization chamber by a microinjection pump to a predetermined concentration, where the vaporized volatile anesthetic is Gas supply unit 1
It is mixed with the anesthetic gas sent from 0.
The anesthesia machine body 2 is provided with a pressure sensor 13, a calculation unit 14, and a display unit 15. The anesthesia circulation circuit 3 mixes the fresh gas (anesthetic gas) containing the volatile anesthetic agent supplied from the anesthesia machine main body 2 into the circulation gas after absorbing and removing carbon dioxide gas from the exhaled air of the patient A, and mixing the mixture. A mixture of air and the fresh gas is sent to the patient A as inhalation. The anesthesia circulation circuit 3 includes an inspiratory flow passage 21 into which the inspiratory air supplied to the patient A flows and an expiratory flow passage 22 into which expiratory air from the patient A flows.
And a breathing circuit 23 that connects the inspiratory flow path 21 and the expiratory flow path 22 to the patient A. The breathing circuit 23 may use a coaxial double tube structure. An intake valve 25 and a mixing chamber 26 are installed in the intake passage 21 for the patient A.
Is provided in order from the distant side to the side approaching the patient A, and the end of the inspiratory flow path 21 on the side opposite to the side connected to the patient A side is a flow path 2a to which anesthetic gas is supplied from the anesthesia machine main body 2. And is connected to the end of the expiratory flow path 22.
The intake valve 25 allows the flow of gas from the carbon dioxide absorption canister 32 to the mixing chamber 26 side, but restricts the reverse flow. The expiratory flow path 2
2, a mixing chamber 28, an exhalation valve 29, a relief valve 30, a bag 31, a carbon dioxide absorption canister 32, and an anesthetic absorption canister 33 are sequentially provided in a direction away from the patient A, and the carbon dioxide absorption canister 32 is provided. An anesthetic agent absorption canister 33 is installed in parallel with each other. The exhalation valve 29 allows the flow of gas from the mixing chamber 28 to the side of the bag 31 but restricts the reverse flow. The relief valve 30 releases the pressure in the flow passage 22 when the pressure in the exhalation flow passage 22 becomes equal to or higher than a predetermined pressure, and restricts the pressure from further increasing. The bag 31 is a bag-shaped bag that can be exhaled to send the inspiratory air to the patient A, and various sizes are prepared according to the supply amount of the inspiratory air to be sent to the patient A, and can be appropriately replaced. . The carbon dioxide absorption canister 32 absorbs and removes carbon dioxide from the breath of the patient A, and is filled with a carbon dioxide absorbent such as soda lime. 3 at the connection part of the bag 31 with the expiratory flow path 22
A one-way valve 35 is provided, and the three-way valve 35 allows the expiratory flow path 22 to be switched and connected to either the bag 31 or the artificial respirator 36. The ventilator 36 can select either a volume limit type in which the volume is controlled or a pressure limit type in which the pressure is controlled. Further, the ventilator 36 is provided with an exhaust port (not shown) for exhausting excess gas. Breathing circuit 2
3, a flow rate sensor 37 is provided. The flow rate sensor 37 measures the flow velocity of the expiratory flow path and the inspiratory flow path, and the ventilation volume is determined based on the detected values. Oxygen sensors 41a and 41b, carbon dioxide gas sensors 42a and 42b, and
Anesthesia gas sensors 43a and 43b are provided respectively. Each of these sensors is electrically connected to the arithmetic unit 14 provided in the main body of the anesthesia machine. In the calculation unit 14,
Based on the detected value from these sensors and the detected value from the flow rate sensor, the oxygen intake amount and the carbon dioxide gas discharge amount for each breath of the patient A during anesthesia are calculated, and the anesthetic gas sensor 43 is used.
Anesthesia gas balance is calculated based on the detected values of a and 43b and the detected value from the flow rate sensor. The calculated values are displayed on the display unit 15 connected to the calculation unit 14.

[0004]

However, in the above-mentioned conventional anesthesia apparatus, the information displayed on the display unit is the metabolic information of the patient (oxygen intake, carbon dioxide emission, anesthetic balance). It is limited, for example, the prediction of the amount of anesthesia ingested after a certain time from the current time, the awakening prediction, etc. must be calculated separately by the device user such as a doctor, and the anesthesia state of the patient is monitored. The burden on the anesthesiologist was heavy.

Anesthesia machines equipped with the function of performing regular inspections have not been provided so far, and users can check the anesthesia machine everywhere while looking at the manual of the machine. It had to be done, and it was complicated and required a lot of manpower and time.

Further, depending on the operation, it may be difficult for the anesthesiologist to see the condition of the patient and the progress of the operation. In addition, the anesthesiologist will check the amount and color of urine discharged from the patient during surgery. Although the urine status is important metabolic information for the patient, it may be difficult for an anesthesiologist to see it due to the arrangement of other devices or anesthesia devices.

Further, although an anesthesia device that displays the name of an error and a check item when an error occurs is known, a device that displays the content of the error and the solution / countermeasure is not provided. In some cases, the cause and solution cannot be known without looking at the manual only from the name of the error. There is a possibility that the patient will be in a serious situation if it is not solved promptly, and it is hard to say that opening the manual when an error occurs, and an anesthesia device that can quickly grasp and eliminate the error is required.

The present invention has been made in view of the above circumstances, and provides an anesthesia apparatus having a function of easily displaying necessary items such as an operating state of an anesthesia apparatus, a state of a patient, an inspection of the apparatus, and an error display. It is an object.

[0009]

To achieve the above object, the present invention relates to an anesthesia machine main body for supplying at least a laughing gas, an oxygen gas and a volatile anesthetic as a fresh gas, and the anesthesia machine. A fresh gas supplied from the main body is mixed with the circulation gas after absorbing and removing carbon dioxide from the patient's breath, and the circulation gas and the fresh gas are mixed, and an anesthesia circulation circuit is sent to the patient as inspiration, A data master unit having a patient simulator unit for predicting an ingested anesthetic dose after a lapse of a certain time from the current time in an anesthesia apparatus for anesthetizing the patient by sending inspiration containing anesthetic gas from the anesthesia circulation circuit to the patient. And a display unit for displaying data from the data master unit. According to this anesthesia device, the target anesthesia concentration (the amount of anesthesia ingested by the patient) can be obtained immediately after the start of anesthesia from the patient information (weight, height, age, sex), the concentration of anesthetic, and the operating conditions of the ventilator. Can be predicted. Therefore, an accident due to overdose can be prevented, and efficient administration can be performed, so that the time for preparing anesthesia before surgery can be shortened. In addition, maintenance of anesthesia during surgery can be predicted. During surgery, the operating conditions of the ventilator may change depending on the metabolic state of the patient. At that time, the anesthetic concentration is often changed, but an appropriate concentration can be predicted by simulation. On the other hand, conversely, the anesthetic concentration may be changed, and when the set operating conditions of the ventilator are continued, it is possible to predict the anesthetic concentration in the body when the anesthetic concentration is changed.

In the anesthesia apparatus of the present invention, it is preferable that the patient simulator unit has means for predicting the concentration of the anesthetic in the body of the patient and further executing the awakening prediction of the patient. It is important to know when to awaken, as the patient may unconsciously rampage during awakening. Although the wake-up time differs among patients, wake-up can be predicted by inputting age, sex, height, and weight. Since the simulation and the awakening prediction described above facilitate the introduction of anesthesia, the maintenance of the patient state, and the awakening, the burden on the anesthesiologist who monitors the patient state is reduced.

In the anesthesia apparatus of the present invention, the data master unit may further include a metabolism monitor unit for calculating the oxygen intake of the patient, the carbon dioxide gas excretion, and the balance of the anesthetic agent balance. By installing this metabolism monitor unit, it is possible to calculate the oxygen intake, CO2 emission and anesthetic balance of the patient and display and monitor them on the display unit, further improving the convenience and safety of the anesthesia device. To do.

In the anesthesia apparatus of the present invention, the data master unit sends a temperature / humidity monitor for sending to the data master unit data of at least one of temperature and humidity of inspiration of a patient measured by a sensor provided in the breathing circuit. It may further have a unit. By providing the temperature / humidity monitor unit, at least one of the temperature and the humidity of the inspiration of the patient can be displayed and monitored on the display unit, and the convenience and safety of the anesthesia apparatus are further improved.

In the anesthesia apparatus of the present invention, the data master unit is a pulse oximeter unit for sending to the data master unit data of at least one of oxygen saturation in blood and pulse measured by a sensor attached to a patient. You can have more. By providing this pulse oximeter unit, it is possible to display and monitor at least one of the oxygen saturation level in the blood of the patient and the pulse rate, and the convenience and safety of the anesthesia apparatus are further improved.

In the anesthesia apparatus of the present invention, the data master unit measures at least one of a gas concentration and a gas flow rate of at least one kind of gas in a pipe in the anesthesia apparatus and sends the data to the data master unit. It may further have a unit. By providing this gas concentration sensor unit, it is possible to display and monitor at least one of the gas concentration and the gas flow rate of at least one kind of gas in the pipe in the anesthesia device, and thus the convenience and safety of the anesthesia device are improved. Further improve.

In the anesthesia apparatus of the present invention, a patient monitoring camera provided so as to monitor the condition of the patient may be connected to the display section. By providing this patient monitoring camera, it becomes possible to observe the patient's condition and surgical progress information together with other information (numerical value, waveform data) on the display unit of the anesthesia apparatus. In addition, the state of the patient's urine (volume,
The color) can be observed together with other information (numerical value, waveform data) on the display unit of the anesthesia device. As a result, the convenience and safety of the anesthesia device are further improved.

In the anesthesia apparatus of the present invention, the display section may have a screen contact input type display. By adopting a screen contact input type display, the user can touch the display section with a finger or a pen to input data, and switch between operations and respond when an error occurs, making the anesthesia device convenient and safe. Further improve. Further, an external input means such as a keyboard is not required, the installation space for the data master unit and the display unit can be reduced, and the external input means does not get caught in the tube or the like.

In the anesthesia apparatus of the present invention, the data master unit may be provided with an external connector for connecting the data master unit and an external device.
By providing this external connector, it is possible to connect an external computer, a device such as a storage medium to the anesthesia device, save data, retrieve data using a memory card, remote control or instructions from the outside to the operating room, Applications such as batch monitoring and management of multiple anesthesia devices are possible.

In the anesthesia apparatus of the present invention, the data master unit detects the state of each part of the anesthesia apparatus with respect to the inspection items stored in advance on a regular basis, compares them with the normal state stored in advance, and detects abnormalities. If there is, a regular inspection function of displaying an abnormality display screen on the display unit may be provided.
By providing this periodic inspection function, the inspector can check the screen of the display unit for the presence / absence of abnormalities, the parts that need to be replaced, and the actions to be taken when an abnormality is found without referring to the manual. The time and effort can be significantly reduced. This regular inspection function may be configured to be performed using an interactive display screen. Regular inspection using the interactive display screen enables the inspection operation to be executed reliably and easily.

The anesthesia apparatus of the present invention may have a storage unit in the anesthesia apparatus for storing the result of the periodic inspection or an external storage medium connected via an external connector. As a result, the result of the regular inspection is automatically stored together with the inspection date and time, so that mistakes such as omission of checks can be prevented. Since the date and time of the inspection are stored, it is possible to display a message prompting the inspection while the device is in use when a certain time has passed since the previous inspection.

The regular inspection function may also have a function of displaying a list of expendables that are nearing the end of their lives. By displaying a list of consumables that have reached the end of their life, regular inspection can be performed more reliably, and the safety of the anesthesia apparatus can be further improved.

In the anesthesia apparatus of the present invention, the data master unit detects an error portion when an error occurs in the anesthesia apparatus, and in addition to the name of the error, at least one of error content, solution and countermeasure is displayed on the display unit. It may have an error display function for displaying. By providing this error display function, in addition to the name of the error when the error occurs, the error content, solution and countermeasures are displayed, so quick response is possible without referring to the manual, and convenience of the anesthesia device , Further improve safety.

The error display function may have a function of sequentially displaying the errors in descending order of importance according to the error importance stored in advance when a plurality of errors are detected in the anesthesia apparatus. By providing this stacking display function, multiple errors can be efficiently recovered, quick response is possible, and errors can be recovered in descending order of importance. It can be further improved.

[0023]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of an anesthesia device according to the present invention. The anesthesia device 50 includes a gas delivery unit 51, a ventilator unit 52, a metabolism monitor unit 53, a patient simulator unit 54, a temperature / humidity monitor unit 55, a pulse oximeter unit 56, and a gas concentration sensor unit 57. And inputs information from each of these units, processes it, sends a command necessary for operating the anesthesia device 50 to the gas delivery unit 51, the respirator unit 52, the metabolism monitor unit 53, and the patient simulator unit 54, Display 59
A data master unit 58 for transmitting an image signal for displaying various data and an audio signal for generating an audio from the display unit 59 when necessary, and the data master unit 58.
Display unit 5 that has a built-in display that displays the image signal from the screen and a speaker that converts the audio signal into sound
9, an external connector 60 connected to the data master unit 58, and a patient monitoring camera 61 connected to the display unit 59 and capable of capturing an image of the patient.

The gas delivery unit 51 comprises a gas delivery part of the anesthesia device and a control part for controlling the operating state thereof. This gas delivery part
Any of various conventional types of anesthesia devices, that is, the gas supply part of the anesthesia device for semi-closed anesthesia (high flow anesthesia) or low flow anesthesia can be applied, but preferably, as shown in FIG. A low-flow anesthesia device gas supply section is applied. The gas supply portion of the anesthesia device shown in FIG. 12 includes at least an anesthesia machine main body 2 for supplying a mixture of at least a laughing gas, an oxygen gas and a volatile anesthetic, and a laughing gas supplied from the anesthesia machine main body 2. It is roughly divided into an anesthesia circulation circuit 3 in which fresh gas containing oxygen gas and a volatile anesthetic is mixed into the exhaled air of the patient A, and the circulating air and the fresh gas are mixed and sent to the patient A as inhalation. The anesthesia machine main body 2 includes a gas supply unit 10 that supplies anesthesia gas containing laughing gas, and a flow meter 1 that measures the flow rate of the anesthesia gas supplied from the gas supply unit 10.
1 and a vaporizer 12 for supplying a volatile anesthetic in the anesthetic gas in a vaporized state. As the low flow anesthesia device, not only the anesthesia device 1 shown in FIG. 12 but also a gas supply portion of another conventionally known anesthesia device having the same function can be applied. It is also possible to apply the gas supply part of the anesthesia device with various modifications to the anesthesia device 1 shown.

The control unit of the gas delivery unit 51 is composed of a calculation unit and a storage unit, and can be provided separately from the data master unit 58 or can be integrated with the data master unit 58. In the latter case,
The control of the gas delivery part of the anesthesia device by the control unit is
It can be operated by the execution software stored in the storage unit of the data master unit 58. This control includes, for example, the supply pressure and supply amount of various gases such as oxygen, laughing gas, and air to the gas delivery unit 51, the supply pressure and supply amount of gas from the anesthesia machine body, and the pressure of gas in the anesthesia circulation circuit. The amount of gas in the breathing circuit and the amount of gas in the breathing circuit are continuously or periodically sent to the control unit based on the gas pressure data sent from the pressure sensors provided at various places, and the control unit needs these data. According to the above, it is displayed on the display unit 59, and these data are compared with appropriate values stored in advance, and the flow rate control valves and the opening / closing valves arranged at various places in the unit are optimized so that the gas delivery at each place is optimized. Optimal operation can be maintained by appropriately operating gas delivery control means such as a valve and a relief valve. Further, when an abnormality occurs, an alarm can be issued via the display unit 59, and the location of the abnormality, countermeasures for recovery, etc. can be displayed on the display unit 59. Further, when switching the operation mode such as automatic operation and manual operation using a bag, the user instructs the control section to switch the operation mode, and the gas is changed according to the operation mode change procedure stored in advance in the control section. Switch the delivery control means,
The operation mode can be switched quickly.

The ventilator unit 52 comprises various types of ventilators known in the prior art, and a control section for controlling the drive thereof. As the artificial respirator, both a volume limit type in which the volume is controlled and a pressure limit type in which the pressure is controlled are applicable. The control unit of the ventilator unit 52 includes a calculation unit and a storage unit, and can be provided separately from the data master unit 58 or can be integrated with the data master unit 58. In the latter case, the control of the ventilator by the control unit can be activated by the execution software stored in the storage unit of the data master unit 58. The controller displays the operating state of the ventilator on the display unit 59 and controls the operation of the ventilator. As mentioned above,
The data master unit 58 is input with data from pressure sensors and flowmeters provided in various places such as the breathing circuit of the gas delivery unit 51, and appropriate values stored in advance in the control unit. Compared with the above, it can be configured so that the operation of the ventilator can be controlled so that the gas pressure and the flow rate at each place become appropriate values. In addition, the switching of the operation of the artificial respirator is also executed according to the switching of the operation mode described above.

The metabolism monitor unit 53 calculates a sensor unit for detecting each gas concentration in the anesthesia circulation circuit, an oxygen intake amount of a patient, a carbon dioxide gas discharge amount, and an anesthetic storage balance, and the data is used as a data master unit. And a processing unit for displaying the same on the display unit 59. The processing unit includes a calculation unit and a storage unit, and can be provided separately from the data master unit 58 or can be integrated with the data master unit 58.
The metabolism monitor unit 53 is a data master unit 5
8 can be operated by the execution software stored in the storage unit. The metabolism monitor unit 53 includes oxygen sensors 41a and 41b, carbon dioxide gas sensors 42a and 42b, and oxygen sensors 41a and 41b provided in the mixing chambers 26 and 28 in the expiratory flow path 22 and the inspiratory flow path 21, respectively, in the anesthesia device shown in FIG. Based on the detection value of the flow rate sensor 37 provided in at least one of the expiratory flow path and the inspiratory flow path, the oxygen intake amount of each breath of the patient is calculated in the calculation unit in the data master unit 58 or in the calculation unit separately provided. , Calculate carbon dioxide emissions and mix chamber 2
Anesthesia gas sensors 43a and 43 provided in 6 and 28, respectively
It is possible to employ a mechanism in which the anesthetic agent balance is calculated from the detection values of b and the flow rate sensor 37, and the calculated values are continuously or periodically displayed on the display unit 59 as the metabolic state of the patient.

The patient simulator unit 54 inputs the amount of anesthetic drug in the patient's internal compartment after a certain time has passed from the current time, based on various data input to the data master unit 58 and accumulated in the storage unit. It has a predicting function, and can also be provided with a function of predicting the awakening time of a patient. These simulation data are displayed on the display unit 59 continuously or periodically. This patient simulator unit 54
It can be operated by the execution software stored in the storage unit of the data master unit 58.

According to this patient simulator unit 54, from the patient information (weight, height, age, sex), the anesthetic concentration, and the operating conditions of the ventilator, the target anesthetic concentration immediately after the start of anesthesia (the patient ingested Anesthetic dose) can be predicted. Therefore, an accident due to overdose can be prevented, and efficient administration can be performed, so that the time for preparing anesthesia before surgery can be shortened. In addition, maintenance of anesthesia during surgery can be predicted. During surgery, the operating conditions of the ventilator may change depending on the metabolic state of the patient. At that time, the anesthetic concentration is often changed, but an appropriate concentration can be predicted by simulation. On the other hand, conversely, the anesthetic concentration may be changed, and when the set operating conditions of the ventilator are continued, it is possible to predict the anesthetic concentration in the body when the anesthetic concentration is changed. When the patient simulator unit 54 predicts the anesthetic concentration in the patient's body and further executes the awakening prediction of the patient, the time to awaken varies among the patients, but the age, sex, height, and weight can be input. , Can predict awakening. Since the simulation and the awakening prediction described above facilitate the introduction of anesthesia, the maintenance of the patient state, and the awakening, the burden on the anesthesiologist who monitors the patient state is reduced.

The temperature / humidity monitor unit 55 measures at least one, preferably both, of the temperature and humidity of the patient's inspiration and sends it to the data master unit 58 to display it on the display unit 5.
9 shows these data. The temperature / humidity monitor unit 55 is capable of measuring the temperature and humidity of the patient's inspiration, for example, a sensor section including a temperature sensor and a humidity sensor provided in a breathing circuit, and data from these sensors can be easily understood. And a processing unit for converting the image signal into a different image signal and displaying it on the display unit 59 via the data master unit 58. The processing section of the temperature / humidity monitor unit 55 can be operated by the execution software stored in the storage section of the data master unit 58.

The pulse oximeter unit 56 includes
At least one, preferably both, of oxygen saturation and pulse in the blood of the patient are measured and sent to the data master unit 58, and these data are displayed on the display unit 59. The pulse oximeter unit 56 is mounted on, for example, a finger of a patient, and is capable of measuring oxygen saturation and pulse in the blood of the patient, and converts data from these sensors into an image signal that is easy to understand. The display section 59 displays the processing section. The processing unit of the pulse oximeter unit 56 can be configured integrally with the data master unit 58, and can be operated by the execution software stored in the storage unit of the data master unit 58.

The gas concentration sensor unit 57 measures the gas concentration (concentration of oxygen, laughing gas, anesthetic agent, etc.) and gas flow rate in the pipe of the gas delivery part of the anesthesia apparatus described above,
The data is sent to the data master unit 58 and these data are displayed on the display unit 59. The gas concentration sensor unit 57 converts the gas concentration and gas flow rate in the pipe of the gas delivery part into sensor signals and data from these sensors into image signals that are easy to understand, and displays them on the display part 59. And a processing unit for displaying. The processing unit of the gas concentration sensor unit 57 can be configured integrally with the data master unit 58, and can be operated by execution software stored in the storage unit of the data master unit 58.

The data master unit 58 comprises a computing unit such as a microprocessor, CPU or MPU, and a storage unit. This data master unit 58 is
The control unit and processing unit of each unit described above, that is, the control unit of the gas delivery unit 51, the respirator unit 5
2 of the control unit, the processing unit of the metabolism monitor unit 53, the patient simulator unit 54, the processing unit of the temperature / humidity monitor unit 55, the processing unit of the pulse oximeter unit 56, and the processing unit of the gas concentration sensor unit 57 are integrated. Can be configured separately, or can be configured separately from each of these units. For example, the operation of each of the units 51 to 57 can be executed by driving the arithmetic unit of the data master unit 58 with various execution software stored in the storage unit of the data master unit 58.

The data master unit 58 follows the procedure stored in advance when operating the anesthesia apparatus 50.
The units 51 to 57 are operated as described above, and the selected data is displayed on the display unit 59.

The data master unit 58 detects the state of each part of the anesthesia apparatus 50 for the inspection items stored in advance on a regular basis, compares it with the normal state stored in advance, and when there is an abnormality, It may have a regular inspection function of displaying an abnormality display screen on the display unit 59. By providing this periodic inspection function, the inspector can check the screen of the display unit for the presence / absence of abnormalities, the parts that need to be replaced, and the actions to be taken when an abnormality is found without referring to the manual. The time and effort can be significantly reduced. The result of the periodic inspection is automatically stored in the storage unit together with the inspection date and time (or in the memory of the external computer via the external connector 60).
Remembered. This makes it possible to prevent mistakes such as check omissions. Since the date and time of the inspection are stored, it is possible to display a message prompting the inspection while the device is in use when a certain time has passed since the previous inspection. The regular inspection function may also have a function of displaying a list of expendables that are nearing the end of their lives. By displaying a list of consumables that have reached the end of their life, regular inspection can be performed more reliably, and the safety of the anesthesia apparatus can be further improved. This regular inspection function may be configured to be performed using an interactive display screen. Regular inspection using the interactive display screen enables the inspection operation to be executed reliably and easily.

Further, the data master unit 58 detects an error portion when an error occurs in the anesthesia device 50, and displays an error display on the display unit 59, in addition to the name of the error, at least one of error content, solution and countermeasure. It may have a function. By providing this error display function,
When an error occurs, in addition to the error name, the error content and resolution /
Since countermeasures are also displayed, quick response is possible without referring to the manual, and the convenience and safety of the anesthesia device are further improved. This error display function may have a function of sequentially displaying the errors in descending order of importance in accordance with the error importance levels stored in advance when a plurality of errors are detected in the anesthesia apparatus. By providing this stacking display function, multiple errors can be efficiently recovered, quick response is possible, and errors can be recovered in descending order of importance. It can be further improved.

The display unit 59 comprises a display for displaying an image signal sent from the data master unit 58 on a screen, a speaker for converting a sound signal sent from the data master unit 58 into sound, and the like. More preferably, the display is
A screen contact input type display is used in which a user can input data by touching a screen specific area with a finger or a pen according to instructions on the screen. By adopting this screen touch input type display, the user can touch the display section with a finger or a pen to input, and can perform operation switching and response when an error occurs, which is convenient and safe for anesthesia equipment. Is further improved. Further, an external input means such as a keyboard is not required, the installation space for the data master unit and the display unit can be reduced, and the external input means does not get caught in the tube or the like.

The display unit 59 is preferably capable of displaying the image signal from the patient monitoring camera 61. The display unit 59 can be appropriately selected and used from various commercially available products. Examples of commercially available products suitable as the display unit 59 include MONITOUCH V612T (trade name) manufactured by Hakodenki Co., Ltd., which is a TFT color LCD.

The external connector 60 connected to the data master unit 58 includes various devices external to the data master unit 58, such as a computer, a host computer for centralized management, a connection device for RAN, a terminal adapter, a printer, and various storage media. You can select and install the necessary connector to connect with.
By providing this external connector, it is possible to connect an external computer, a device such as a storage medium to the anesthesia device, save data, retrieve data using a memory card, remote control or instructions from the outside to the operating room, Applications such as batch monitoring and management of multiple anesthesia devices are possible.

The patient monitoring camera 61 continuously or regularly photographs the patient's condition and sends the image signal (and audio signal if necessary) to the display unit 59. The display unit 59 displays the patient condition. Can be displayed, and for example, a video camera, a CCD camera, a digital camera or the like can be used. By providing this patient monitoring camera 61, it becomes possible to observe the patient's state and operation progress information together with other information (numerical value, waveform data) on the display unit of the anesthesia apparatus. In addition, the state of the patient's urine (volume,
The color) can be observed together with other information (numerical value, waveform data) on the display unit of the anesthesia device. As a result, the convenience and safety of the anesthesia device are further improved.

FIG. 2 is for explaining an example of the screen configuration of the display unit 59 in the anesthesia apparatus 50 configured as described above. In this example, the screen configuration is roughly divided into a rising portion and an operation (anesthesia) portion, as shown in FIG. After the power is turned on, the rising part is automatically checked in the order of automatic check (each unit, supply pressure), automatic leak test, patient information input, ventilator initial condition input, vaporizer setting, anesthesia initial condition input and denitrification. It is displayed by switching. As described above, in the case of the screen touch input type display, the user can easily input these input items by touching an appropriate place on the screen, and also can prevent an input error. Note that these input items can be appropriately changed according to the configuration of the anesthesia device 50 and the like.

The operation section is composed of screens for information display, operation setting, simulation, patient information and the like. The screens of these operation units can be freely set and can be changed as needed.

FIG. 3 exemplifies a case where a plurality of pieces of information are displayed in layers on the screen of the display unit 59. By using such a stacked screen (multi-overlap screen),
A plurality of types of information can be displayed in an easy-to-see manner, and screen switching and handling when an error occurs are facilitated. This laminated screen is, for example, the uppermost screen (multi 1)
Used for operation / setting relations (for example, display a calculator)
When a plurality of errors occur, the error display screen is also used, the middle layer screen (multi 2) displays the error relationship, and the bottom screen (multi 3) displays the video image from the patient monitoring camera 61. It can be utilized by etc.

FIGS. 4A and 4B show an example of an error display used when a single error occurs in the anesthesia device 50. If there is one error,
As shown in (a), the error display can be easily displayed on the screen of patient information and the like. In FIG. 4 (a), the "anesthetic concentration setting screen" is displayed as an error display of "abnormal anesthetic concentration setting", its content and its solution / countermeasure, and an alarm is issued from the speaker of the display unit 59. Has been issued. When "Silence" or "Clear" is selected in the error display, a small "error display" is displayed at the top of the "anesthetic concentration screen" and the alarm is silenced as shown in FIG. 4 (b). .

FIGS. 5 (a) -5 (d) show an anesthesia device 50 with two components.
It is an example of an error display used when more than one error occurs. FIG. 5A shows a screen when an error has occurred, and when two or more errors have occurred, the "error occurring" screen is displayed. The display switch lamp of the newly generated error lights up and the error content is displayed in the lower right. It should be noted that in the "error occurring" screen, a plurality of errors having a high priority are displayed at the top.
FIG. 5B shows an error display when the reduction key is selected. When the reduction switch in the screens of FIGS. 5A and 5C is selected, the “error display” switch is displayed at the top of the screen. It FIG. 5C shows the case where the "error display" switch is selected, and when the "error display" switch is selected, the "error occurring" screen is displayed again and the error content of the first priority is displayed. Is displayed. At that time, the "error display" switch lamp with the first priority is turned on in the "error occurring" screen. FIG. 5D shows the case where mute / clear is selected. In the error content screen of FIG.
When the switch is pressed in the order of mute / clear, only the "Error occurring" screen is displayed.

FIGS. 6A to 6C exemplify screen designs for displaying error contents of emergency alerts, warning alerts, and warnings. In this example, the color of the warning alert is changed to distinguish the warning alert from the warning. FIG. 6A is an error display for notifying an emergency alert (for example, power failure),
The details of the error and countermeasures are displayed. Figure 6 (b)
Is an error display for notifying a warning (for example, oxygen transfer transfer pressure drop), and details of the error and countermeasures are displayed. FIG. 6C is an error display for notifying a warning (for example, anesthetic concentration setting abnormality), and details of the error and countermeasures are displayed. These error displays are merely examples and can be changed as appropriate. In addition, the priority of error display can be changed temporarily by temporarily classifying the errors and ranking the importance, and then by the user.

7 to 9 show the anesthesia apparatus 50 of this embodiment.
FIG. 6 is a flowchart for explaining an operation when executing a simulation. As shown in FIGS. 7 to 9,
To execute the anesthesia simulation and the awakening simulation in the anesthesia device 50 of this embodiment, the anesthesia device 50 is powered on. The data master unit 58 activates each of the units 51 to 57 and the display unit 59 according to a schedule stored in advance. Further, the data master unit 58 executes an automatic check of the inside of the device, the supply pressure, and an automatic leak test according to a pre-stored schedule whether or not the anesthesia device 50 can be operated normally. The results of these checks are displayed on the display unit 59.

Next, the screen is switched to "enter patient information", and the user inputs necessary information. Next, the screen is automatically switched to "input initial condition of ventilator", "vaporizer setting", "input anesthesia initial condition", and the user sequentially inputs necessary information. When these initial setting inputs are completed, the “denitrification” step is automatically started, and the screen is displayed at the end of the process, and the screen is switched to the “main menu screen”. As shown in FIG. 2, in normal operation of the anesthesia device, by selecting “patient information screen” from the main menu, the selected screen such as the patient's condition and the operation state of the anesthesia device is displayed.

When executing the anesthesia simulation and the awakening simulation, the simulation is selected from the main menu. In the simulation screen,
Select whether or not to select the awakening simulation on the screen. When the awakening simulation is selected (Yes), it will be described later. When the awakening simulation is not selected (No), the anesthesia simulation is executed. In the anesthesia simulation, first "set the time". That is, how many hours from the present time the simulation is to be performed is set. If you enter the number of hours here, you can choose to use the default value. Next, select whether to change the conditions of the ventilator / anesthesia concentration. However, the change of the ventilator / anesthetic concentration condition here is a simulation, and the operating condition of the device does not change by changing it, but the ventilator / anesthetic concentration condition is strictly there. This is for simulating what happens if you change the value.

When the condition of the ventilator / anesthesia concentration is not changed (No), it is transmitted to the data master unit 58 together with the metabolism monitor information, and further transmitted to the patient simulator unit 54. Anesthesia concentration in the patient (amount of anesthetic taken by the patient)
Calculate and predict. This predicted value is transmitted to the display unit 59 via the data master unit 58 and displayed on the display unit 59. After the simulation result is displayed, the screen is switched to select whether or not to execute the simulation again, and when not executing (No) is selected, the simulation ends and is executed (Yes).
When is selected, the screen returns to the simulation screen.

When the change (Yes) is selected on the screen for selecting whether to change the artificial respirator / anesthetic concentration condition, "anesthetic concentration setting", "fresh gas flow rate setting",
Enter the information to be set in order on each setting screen of "Tidal volume setting" and "Breathing rate setting". After completion of the input on each of these setting screens, the information is transmitted to the data master unit 58 together with the metabolism monitor information, and further transmitted to the patient simulator unit 54, and the anesthetic concentration in the patient body (a patient Calculate and predict the amount of anesthetic taken). This predicted value is transmitted to the display unit 59 via the data master unit 58, and the display unit 59
Is displayed. The display unit 59 displays a selection as to whether or not to simultaneously display the results of the current driving / new driving conditions.
When not displaying (No) is selected, the simulation result under the new operating condition is displayed, and when selecting Yes, the simulation result is displayed at the same time. After the simulation result is displayed, the screen is switched to select whether or not to execute the simulation again. If you do not execute (No), the simulation ends, and if you execute (Yes), , Return to the simulation screen.

When "Awakening simulation is selected" (Yes) on the simulation screen, the awakening simulation is executed. In the awakening simulation, first "set the time". That is, how many hours from the present time the simulation is to be performed is set. If you enter the number of hours here, you can choose to use the default value. Next, "set target alveolar concentration" is set. Here, when setting the alveolar concentration (Ye
s), the default value can be selected (No). When the default value is used, the case where the default value is further used (Yes) and the case where the breath anesthetic concentration is set to 0% can be selected. After the selection of these conditions, the screen is shifted to the judgment screen of "change ventilator / anesthesia concentration condition" in the above-described anesthesia simulation, and thereafter, the same operation as described in the execution of the above-mentioned anesthesia simulation is performed. After the simulation result is displayed, the screen is switched to select whether to execute the simulation again, and the simulation is not executed here (N
When o) is selected, the simulation ends, and when execution is selected (Yes), the screen returns to the simulation screen.

FIG. 10 is a flow chart for explaining the operation for executing information display and error display in the anesthesia apparatus 50 of this embodiment. Anesthesia device 5 of the present embodiment
At 0, when the power of the anesthesia device 50 is turned on, the data master unit 58 activates each of the units 51 to 57 and the display unit 59 according to the schedule stored in advance. Further, the data master unit 58 executes an automatic check of the inside of the device, the supply pressure, and an automatic leak test according to a pre-stored schedule whether or not the anesthesia device 50 can be operated normally. The results of these checks are displayed on the display unit 59.

Next, the screen is switched to "patient information input" and the user inputs necessary information. Next, the screen is automatically switched to "input initial condition of ventilator", "vaporizer setting", "input anesthesia initial condition", and the user sequentially inputs necessary information. When these initial setting inputs are completed, the “denitrification” step is automatically started, and the screen is displayed at the end of the process, and the screen is switched to the “main menu screen”. When carrying out normal operation, as shown in FIG. 2, the information display screen in this main menu screen is selected.

It is sent from each unit, that is, the gas delivery unit 51, the respirator unit 52, the metabolism monitor unit 53, the patient simulator unit 54, the temperature / humidity monitor unit 55, the pulse oximeter unit 56 and the gas concentration sensor unit 57. The signal (data) is sent to the data master unit 58 and displayed on the screen of the display unit 59. As described above, in the normal operation, the signals (data) sent from the units 51 to 57 are transmitted to the display unit 59, while the error information is transmitted to the display unit 59 when an abnormal numerical value is detected. As for the display screen when an error occurs, as described above,
An error display screen as illustrated in FIG. 6 can be adopted.

FIG. 11 is a flow chart for explaining the flow at the time of setting the operating conditions of the anesthesia apparatus 50 (operating conditions of the ventilator, anesthesia conditions) using the "operation setting screen" of the main menu. . As described above, when the power of the anesthesia device 50 is turned on, the data master unit 58 causes each of the units 51 to 57 to follow the schedule stored in advance.
And the display unit 59 is activated. Further, the data master unit 58 executes an automatic check of the inside of the device, the supply pressure, and an automatic leak test according to a pre-stored schedule whether or not the anesthesia device 50 can be operated normally. The results of these checks are displayed on the display unit 59.

Next, the screen is switched to "enter patient information", and the user inputs necessary information. Next, the screen is automatically switched to "input initial condition of ventilator", "vaporizer setting", "input anesthesia initial condition", and the user sequentially inputs necessary information. When these initial setting inputs are completed, the “denitrification” step is automatically started, and the screen is displayed at the end of the process, and the screen is switched to the “main menu screen”. When changing the setting,
Select "Operation setting screen" in the main menu screen. On the operation setting screen, a setting screen for the gas delivery unit 51 and the ventilator unit 52 is displayed, and the user selects a necessary setting change item and inputs the change value. This changed value is the sequential data master unit 5
8, the data master unit 58 transmits the changed operating conditions to the gas delivery unit 51 and the ventilator unit 52, and the gas master unit 58 and the ventilator unit 5
In No. 2, operation is performed according to the changed operating conditions.

[0058]

The anesthesia apparatus according to the present invention includes a data master unit having a patient simulator unit for predicting an ingested anesthetic dose after a lapse of a certain time from the present time, and a display section for displaying data from the data master unit. By adopting the configuration including and, the target anesthetic concentration (the amount of anesthetic taken by the patient) can be predicted immediately after the start of anesthesia from the anesthetic concentration and the operating conditions of the artificial respirator. Therefore, an accident due to overdose can be prevented, and efficient administration can be performed, so that the time for preparing anesthesia before surgery can be shortened. In addition, since anesthesia maintenance during surgery can be predicted, it is possible to predict an appropriate concentration by simulation. Even when the anesthetic concentration is changed, it is possible to predict the anesthetic concentration in the body when the operating condition of the artificial respirator that has been set is continued. Further, in the patient simulator unit, by further comprising a means for predicting the concentration of an anesthetic in the patient's body and performing the awakening prediction of the patient, anesthesia induction, maintenance of the patient state, and awakening can be easily performed. The burden on the anesthesiologist to monitor the patient status is reduced. In addition, the data master unit is equipped with a metabolic monitor unit that calculates the patient's oxygen intake, carbon dioxide emission, and anesthetic balance, thereby calculating the patient's oxygen intake, carbon dioxide emission, and anesthetic balance. It can be displayed and monitored on the display unit, further improving the convenience and safety of the anesthesia device. Further, in the data master unit, by providing a temperature / humidity monitor unit for sending to the data master unit data of at least one of the temperature and humidity of the inspiration of the patient measured by the sensor provided in the breathing circuit,
At least one of the temperature and the humidity of the inspiration of the patient can be displayed and monitored on the display unit, and the convenience and safety of the anesthesia device are further improved. In addition, by providing the data master unit with a pulse oximeter unit that sends to the data master unit at least one of the oxygen saturation level in the blood and the pulse measured by the sensor attached to the patient, the oxygen saturation level in the patient's blood At least one of the degree and the pulse can be displayed and monitored on the display unit, and the convenience and safety of the anesthesia device are further improved. Further, the data master unit is provided with a gas concentration sensor unit that measures at least one of the gas concentration and the gas flow rate of at least one kind of gas in the pipe in the anesthesia device and sends the data to the data master unit. At least one of the gas concentration and the gas flow rate of at least one kind in the pipe can be displayed and monitored on the display unit, and the convenience and safety of the anesthesia apparatus are further improved. In addition, by providing a patient monitoring camera that can monitor the patient's condition on the display unit, the patient's condition and surgical progress information can be combined with other information (numerical value, waveform data) on the display unit of the anesthesia device. It becomes observable. Also, with the camera attached to the operating table,
It is possible to observe the state (volume, color) of the urine of the patient dropped from the urine catheter into the urine bottle together with other information (numerical value, waveform data) on the display unit of the anesthesia device. As a result, the convenience and safety of the anesthesia device are further improved. In addition, by configuring the display unit to have a screen touch input type display, the user can touch the display unit with a finger or a pen to input, and can perform operation switching and response when an error occurs, and The convenience and safety are further improved. Further, an external input means such as a keyboard is not required, the installation space for the data master unit and the display unit can be reduced, and the external input means does not get caught in the tube or the like. Further, by providing the data master unit with an external connector for connecting the data master unit and an external device, it is possible to connect an external computer, a device such as a storage medium to an anesthesia device, save data, and store a memory card. Applications such as data retrieval, remote operation, instructions to the operating room from the outside, and collective monitoring and management of multiple anesthesia devices are possible. Furthermore, for the inspection items stored in advance in the data master unit on a regular basis, the state of each part of the anesthesia device is detected and compared with the normal state stored in advance. By providing a periodic inspection function that displays the display screen, the inspector can perform the presence / absence of an abnormal place on the screen of the display unit, the parts that need to be replaced, and the action when an abnormality is found, without referring to the manual, etc. The time and effort required for regular inspections can be significantly reduced. Further, the inspection operation can be surely and easily executed by arranging the periodic inspection function by using the interactive display screen. In addition, by providing a storage unit in the anesthesia machine that stores the results of periodic inspections or an external storage medium connected via an external connector, the results of periodic inspections are automatically stored along with the inspection date and time. Such mistakes can be prevented. Since the date and time of the inspection are stored, it is possible to display a message prompting the inspection while the device is in use when a certain time has passed since the previous inspection. Further, the regular inspection function may also have a function of displaying a list of consumables that have reached the end of their life. By displaying a list of consumables that have reached the end of their life, regular inspection can be performed more reliably, and the safety of the anesthesia apparatus can be further improved. Also, by providing the data master unit with an error display function that detects the error location when an anesthesia device error occurs and displays at least one of the error content, solution, and countermeasure on the display unit in addition to the name of the error. When an error occurs, the error content, the error content, and the solution / countermeasure are displayed in addition to the error name. Therefore, quick response is possible without referring to the manual, and the convenience and safety of the anesthesia device are further improved. In addition to this error display function, when multiple errors are detected in the anesthesia machine, by adding a function to display the errors in order from the most important one according to the error importance stored in advance, it is possible to improve efficiency when multiple errors occur. Since it is possible to recover well, quick response is possible, and errors can be recovered in descending order of importance, the safety can be further improved.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an embodiment of an anesthesia device according to the present invention.

FIG. 2 is a flowchart showing an example of a screen configuration of a display unit of the anesthesia device.

FIG. 3 is a schematic diagram showing an example of a screen configuration of a display unit.

FIG. 4 is a diagram showing an example of an error display, and is a diagram showing an error display screen when one error has occurred.

FIG. 5 is a diagram showing an example of error display, and is a diagram showing an error display screen when two or more errors have occurred.

FIG. 6 is a diagram showing an example of an error display.

FIG. 7 is a part of a flowchart for explaining an operation when a simulation is executed in the anesthesia apparatus according to the present invention.

FIG. 8 is a continuation of the flowchart of FIG.

9 is another continuation of the flow diagram of FIG. 7.

FIG. 10 is a flow chart for explaining an operation when executing information display and error display in the anesthesia apparatus according to the present invention.

[FIG. 11] Using the operation setting screen of the main menu,
It is a flow chart for explaining the flow at the time of setting the operating conditions of the anesthesia device (operating conditions of the ventilator, anesthesia conditions).

FIG. 12 is a configuration diagram showing an example of a conventional anesthesia device.

[Explanation of symbols]

50 Anesthesia device 51 gas delivery unit 52 Ventilator unit 53 Metabolism monitor unit 54 Patient Simulator Unit 55 Temperature and humidity monitor unit 56 pulse oximeter unit 57 Gas concentration sensor unit 58 Data Master Unit 59 Display 60 External connector 61 Patient surveillance camera

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Tomohiro Naruzawa             3-23-13 Hongo, Bunkyo-ku, Tokyo Izumi Technician             Kashinko Co., Ltd. (72) Inventor Masahiro Kihara             3-23-13 Hongo, Bunkyo-ku, Tokyo Izumi Technician             Kashinko Co., Ltd. (72) Inventor Masaaki Inoue             3-23-13 Hongo, Bunkyo-ku, Tokyo Izumi Technician             Kashinko Co., Ltd.

Claims (15)

[Claims] 1. An anesthesia machine main body which supplies at least laughing gas, oxygen gas and a volatile anesthetic as a fresh gas, a fresh gas supplied from the anesthesia machine main body, and a carbon dioxide gas from a patient's exhaled gas. An anesthesia circulation circuit that mixes the circulation air after absorption and removal and mixes the circulation air with the fresh gas and sends it to the patient as inhalation is provided, and inhalation containing anesthesia gas is sent from the anesthesia circulation circuit to the patient. An anesthesia device for anesthetizing a patient, comprising a data master unit having a patient simulator unit for predicting an ingested anesthetic dose after a lapse of a certain time from the current time, and a display unit for displaying data from the data master unit. Anesthesia device characterized by the above. 2. The anesthesia apparatus according to claim 1, wherein the patient simulator unit has means for predicting a concentration of an anesthetic in the body of the patient and further executing awakening prediction of the patient. 3. The data master unit further comprises a metabolism monitor unit for calculating an oxygen intake amount, a carbon dioxide gas emission amount, and an anesthetic balance of a patient.
Or the anesthesia device according to 2. 4. The data master unit further comprises a temperature / humidity monitor unit for sending to the data master unit at least one of temperature and humidity data of the inspiration of the patient measured by a sensor provided in the breathing circuit. Anesthesia device according to any one of Items 1 to 3. 5. The data master unit further comprises a pulse oximeter unit for sending to the data master unit data of at least one of oxygen saturation in blood and pulse measured by a sensor attached to the patient. Anesthesia apparatus according to any one of items 1 to 4. 6. The data master unit further comprises a gas concentration sensor unit that measures at least one of a gas concentration and a gas flow rate of at least one kind of gas in a pipe in the anesthesia apparatus and sends the data to the data master unit. Anesthesia device according to any one of Items 1 to 5. 7. The patient monitoring camera provided so as to monitor the condition of the patient is connected to the display unit.
The anesthesia device according to any one of 1. 8. The anesthesia apparatus according to claim 1, wherein the display unit has a screen contact input type display. 9. The anesthesia apparatus according to claim 1, wherein the data master unit is provided with an external connector for connecting the data master unit and an external device. 10. The data master unit detects the state of each part of the anesthesia apparatus with respect to the inspection items stored in advance on a regular basis, compares them with the previously stored normal state, and if there is an abnormality, The anesthesia apparatus according to any one of claims 1 to 9, which has a periodic inspection function of displaying an abnormality display screen on the display unit. 11. The anesthesia apparatus according to claim 10, wherein the regular inspection function is configured to be performed using an interactive display screen. 12. The anesthesia apparatus according to claim 10, further comprising a storage unit in the anesthesia apparatus for storing the result of the periodic inspection or an external storage medium connected via an external connector. 13. The periodic inspection function has a function of displaying a list of consumables which have reached the end of their lives.
The anesthesia apparatus according to any one of 2 above. 14. An error display in which the data master unit detects an error location when an error occurs in the anesthesia apparatus, and displays at least one of error content, solution, and countermeasure on the display unit in addition to the name of the error. The anesthesia device according to claim 1, which has a function. 15. The error display function according to claim 14, wherein when a plurality of errors are detected in the anesthesia apparatus, the error display function has a function of sequentially displaying the errors in descending order of importance in accordance with the error importance levels stored in advance. Anesthesia device.