CN215309459U

CN215309459U - Anesthesia machine gas circuit system and anesthesia machine

Info

Publication number: CN215309459U
Application number: CN202120686304.3U
Authority: CN
Inventors: 黄兴强; 丁振鸿; 颜运康
Original assignee: Shenzhen Wisonic Medical Technology Co ltd
Current assignee: Shenzhen Wisonic Medical Technology Co ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-12-28
Anticipated expiration: 2031-04-02

Abstract

The utility model discloses an anesthesia machine gas circuit system and an anesthesia machine, which are used for breathing of a patient during intravenous anesthesia, and comprise a flow regulating device, a switching device, a first expiration pipeline and a second expiration pipeline, wherein the flow regulating device is arranged on an automatic gas inlet pipeline; the first expiration pipeline and the second expiration pipeline are communicated with the inspiration pipeline, wherein when the inspiration pipeline is communicated with the automatic air inlet pipeline, the first expiration pipeline is communicated and the second expiration pipeline is closed, and when the inspiration pipeline is communicated with the manual air inlet pipeline, the first expiration pipeline is closed and the second expiration pipeline is communicated. The anesthesia machine gas circuit system has the advantages of improving the convenience and safety of use of the anesthesia machine and reducing the occupied area.

Description

Anesthesia machine gas circuit system and anesthesia machine

Technical Field

The utility model relates to the technical field of medical treatment, in particular to an anesthesia machine gas circuit system and an anesthesia machine.

Background

In the prior art, two anesthesia modes exist for a patient, namely, the patient inhales anesthetic gas to perform anesthesia or performs anesthesia on intravenous injection anesthetic of the patient. In either way, the patient can inhale the exhaled gas again, so the carbon dioxide absorbent needs to be added in the breathing pipeline of the anesthesia machine used by the patient to absorb the carbon dioxide in the exhaled gas of the patient, however, the carbon dioxide absorbent has a service life, and in the long-term operation process, medical personnel need to pay attention to whether the carbon dioxide absorbent needs to be replaced at any time, so that the patient is prevented from inhaling the carbon dioxide again. Thus, inconvenience is brought to medical staff.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an anesthesia machine gas circuit system and an anesthesia machine, and aims to solve the problem that medical staff need to pay attention to whether a carbon dioxide absorbent needs to be replaced at any time, so that inconvenience is caused.

In order to achieve the above object, the present invention provides an anesthesia machine gas circuit system, which is used for a patient to breathe during intravenous anesthesia, and comprises:

the flow regulating device is arranged on the automatic air inlet pipeline;

the switching device is arranged on a manual air inlet pipeline, the automatic air inlet pipeline and the manual air inlet pipeline are both communicated with an air suction pipeline, and the flow regulating device and the switching device are used for controlling the air suction pipeline to be selected to be communicated with the automatic air inlet pipeline or the manual air inlet pipeline;

the automatic air intake pipeline comprises a first expiration pipeline and a second expiration pipeline, wherein the first expiration pipeline and the second expiration pipeline are communicated with the inspiration pipeline, when the inspiration pipeline is communicated with the automatic air intake pipeline, the first expiration pipeline is communicated and the second expiration pipeline is closed, and when the inspiration pipeline is communicated with the manual air intake pipeline, the first expiration pipeline is closed and the second expiration pipeline is communicated.

Optionally, the method further comprises:

the first expiration pipeline is communicated with the inspiration pipeline through the switching device, and the switching device and the expiration valve are both used for controlling the first expiration pipeline to be switched on and off.

Optionally, the method further comprises:

the exhaust valve is arranged on the second expiration pipeline, the second expiration pipeline is communicated with the inspiration pipeline through the switching device, and the switching device is further used for controlling the second expiration pipeline to be switched on and off.

Optionally, the method further comprises:

and the first expiratory pipeline and the second expiratory pipeline are communicated with the inspiratory pipeline through the expiratory flow meter.

Optionally, the method further comprises:

a manual air bag communicated with the second expiration pipeline and connected between the exhaust valve and the switching device.

Optionally, the method further comprises:

the switching device, the flow regulating device and the exhalation valve are all electrically connected with the controller;

and the state detection sensor is electrically connected with the controller and is used for detecting the conduction state of the switching device.

Optionally, the switching device comprises a manual air inlet, an automatic air outlet, a manual air outlet, an inhalation port, and an exhalation port;

the automatic air inlet pipeline comprises an automatic oxygen branch and an automatic air branch, and the automatic oxygen branch and the automatic air branch are both communicated with the air suction pipeline;

the manual air inlet pipeline comprises a manual oxygen branch and a manual air branch, and the manual oxygen branch and the manual air branch are both communicated with the manual air inlet and communicated with the air suction pipeline through the air suction port;

the first expiration pipeline is communicated with the automatic air outlet, the second expiration pipeline is communicated with the manual air outlet, and the automatic air outlet and the manual air outlet are communicated with the inspiration pipeline through the expiration port.

Optionally, an intake air flow meter and the flow rate adjusting device are arranged on the automatic oxygen branch, the automatic air branch, the manual oxygen branch and the manual air branch; and/or the presence of a catalyst in the reaction mixture,

the automatic oxygen branch road with manual oxygen branch road sharing oxygen air inlet, automatic air branch road with manual air branch road sharing air inlet, in the direction of admission, the oxygen air inlet and air inlet's low reaches position all is provided with the filter.

Optionally, the method further comprises:

the automatic air inlet pipeline and the manual air inlet pipeline are both provided with the one-way valves; and/or

The humidifying device is arranged on the air suction pipeline; and/or

And the air suction flow meter is arranged on the air suction pipeline.

In order to achieve the purpose, the utility model further provides an anesthesia machine, which comprises the anesthesia machine gas path system according to any one of the technical schemes.

The gas circuit system of the anesthesia machine at least has the following beneficial effects: 1. because the patient is anesthetized by intravenous injection of anesthetic, the gas path system of the anesthesia machine does not need to transmit anesthetic gas, so that the harm to medical personnel caused by the leakage of the anesthetic gas can be avoided, and an anesthetic gas purification device is also not needed, so that the gas path system of the anesthesia machine can be simplified, and the floor area is reduced; 2. by arranging the flow regulating device and the switching device, medical staff can switch air inlet modes through the flow regulating device and the switching device, so that the air supply modes are enriched, and the use convenience of the medical staff is improved; 3. because the gas exhaled by the patient does not contain anesthetic gas, the gas exhaled by the patient can be directly exhausted into the air, and the patient can not re-inhale the exhaled gas, so that a carbon dioxide absorbent does not need to be arranged in a pipeline, medical workers naturally do not need to pay attention to whether the carbon dioxide absorbent needs to be replaced at any time, the use convenience is improved, and meanwhile, the miniaturization of the anesthesia machine can be further realized; 4. when the inhalation pipeline is communicated with the automatic air inlet pipeline, namely automatic air inlet, the gas exhaled by the patient is discharged through the first exhalation pipeline; when the inhalation pipeline is communicated with the manual air inlet pipeline, namely manual air inlet, the air exhaled by the patient is exhausted through the second exhalation pipeline, so that the automatic air inlet and the manual air inlet exhaust modes are distinguished, and the air exhaled by the patient is smoothly exhausted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic flow diagram of an embodiment of an anesthesia machine airway system of the present invention;

FIG. 2 is a schematic view of the flow path of the automatic air intake pipeline of FIG. 1 when communicating with the air intake pipeline;

FIG. 3 is a schematic view of the flow path of the manual intake line of FIG. 1 in communication with the intake line;

fig. 4 is a schematic structural diagram of the switching device in fig. 1.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-3 together, the gas circuit system 100 of the anesthesia machine provided by the present invention is used for breathing of a patient 200 during intravenous anesthesia, the gas circuit system 100 of the anesthesia machine comprises a flow regulating device 6, a switching device 7, a first expiration gas circuit 4 and a second expiration gas circuit 5, the flow regulating device 6 is disposed on an automatic gas inlet circuit 1, the switching device 7 is disposed on a manual gas inlet circuit 2, the automatic gas inlet circuit 1 and the manual gas inlet circuit 2 are both communicated with the inspiration circuit 3, and the flow regulating device 6 and the switching device 7 are used for controlling the inspiration circuit 3 to be communicated with the automatic gas inlet circuit 1 or the manual gas inlet circuit 2; the first expiration pipeline 4 and the second expiration pipeline 5 are communicated with the inspiration pipeline 3, wherein when the inspiration pipeline 3 is communicated with the automatic air inlet pipeline 1, the first expiration pipeline 4 is communicated and the second expiration pipeline 5 is closed, and when the inspiration pipeline 3 is communicated with the manual air inlet pipeline 2, the first expiration pipeline 4 is closed and the second expiration pipeline 5 is communicated.

In this embodiment, anesthesia machine gas circuit system 100 is used for carrying out the scene of vein anesthesia to patient 200, anaesthetize patient 200 through carrying out anesthesia to patient 200 intravenous injection anaesthetic, and provide the gas that the required gas of breathing in and discharge patient 200 exhalation to patient 200 through anesthesia machine gas circuit system 100, owing to adopt intravenous injection's mode to anaesthetize patient 200, consequently, anesthesia machine gas circuit system 100 need not convey anaesthetic gas, can avoid anaesthetic gas to leak the harm that brings medical personnel, also need not anaesthetic gas purifier, therefore, anesthesia machine gas circuit system 100 can be simplified, reduce area.

Specifically, the switching device 7 may be, but is not limited to, a five-way valve, and any other valve structure capable of implementing the five-way function is included in the scope of the present invention. The switching device 7 is simultaneously communicated with the manual air inlet pipeline 2, the first expiration pipeline 4, the second expiration pipeline 5, the inspiration pipeline 3 and the air outlet pipeline 8, the air outlet pipeline 8 is communicated with the inspiration pipeline 3, the automatic air inlet pipeline 1 automatically (or electrically) provides gas required for inspiration for the patient 200, such as oxygen and/or air, and the automatic air inlet pipeline 1 can be connected to an air supply bottle or a central air supply system of a hospital; the manual air intake line 2 supplies the patient 200 with the gases required for inspiration, such as oxygen and/or air, manually, which can also be connected to an air supply bottle or to a central air supply system of the hospital; the flow adjusting device 6 is arranged on the automatic air inlet pipeline 1 and used for adjusting the air inlet flow and the on-off of the automatic air inlet pipeline 1, the flow adjusting device 6 and the switching device 7 are used for controlling the air suction pipeline 3 to be communicated with the automatic air inlet pipeline 1 or the manual air inlet pipeline 2 alternatively, namely, medical staff can control the air suction pipeline 3 to be communicated with the automatic air inlet pipeline 1 through the flow adjusting device 6 and the switching device 7 or control the air suction pipeline 3 to be communicated with the manual air inlet pipeline 2 through the flow adjusting device 6 and the switching device 7 according to actual needs, and the air suction pipeline 3 extends to the mouth and nose of the patient 200 to enable the user to suck required gas such as oxygen and/or air. It will be appreciated that the supply air pressure of the supply air bottle or the central air supply system of the hospital is greater than the air pressure of the automatic air inlet line 1 and the manual air inlet line 2 to ventilate the automatic air inlet line 1 or the manual air inlet line 2.

In the present embodiment, the switching device 7 may be operated purely manually or may be controlled electrically.

It should be noted that, in this embodiment, the gas circuit system 100 of the anesthesia apparatus includes an air outlet pipeline 8, a first exhalation pipeline 4 and a second exhalation pipeline 5, the first exhalation pipeline 4 and the second exhalation pipeline 5 are both communicated with the inhalation pipeline 3 through a switching device 7, the air outlet pipeline 8 is used for extending to the mouth and nose of the patient 200 and is connected with the inhalation pipeline 3, so as to discharge the gas exhaled by the patient 200 through the air outlet pipeline 8 and the first exhalation pipeline 4 or the second exhalation pipeline 5, it should be noted that, at the same time, only one of the first exhalation pipeline 4 and the second exhalation pipeline 5 is in a conducting state, specifically, when the inhalation pipeline 3 is conducted with the automatic air intake pipeline 1, that is, when the automatic air intake is performed, the first exhalation pipeline 4 is conducted with the inhalation pipeline 3 through the air outlet pipeline 8 and the second exhalation pipeline 5 is closed, so as to discharge the gas exhaled by the patient 200 through the air outlet pipeline 8 and the first exhalation pipeline 4, when the inhalation pipeline 3 is communicated with the manual air inlet pipeline 2, namely, when manual air inlet is carried out, the first exhalation pipeline 4 is closed, and the second exhalation pipeline 5 is communicated with the inhalation pipeline 3 through the air outlet pipeline 8, so that the gas exhaled by the patient 200 is exhausted through the air outlet pipeline 8 and the second exhalation pipeline 5, and the gas exhaled by the patient 200 does not contain anesthetic gas, so that the gas exhaled by the patient 200 can be directly exhausted into the air; in the present embodiment, the switching device 7 controls the gas outlet line 8 to alternatively communicate with the first expiration line 4 or the second expiration line 5.

In another alternative embodiment, the first and

second exhalation lines

4 and 5, respectively, extend to the oro-nasal region of the patient 200 and communicate with the inhalation line 3.

In summary, the anesthesia machine gas path system 100 of the present embodiment has at least the following beneficial effects:

1. because the patient 200 is anesthetized by intravenous injection of anesthetic, the anesthesia machine gas path system 100 does not need to transmit anesthetic gas, so that the harm to medical personnel caused by anesthetic gas leakage can be avoided, and an anesthetic gas purification device is not needed, so that the anesthesia machine gas path system 100 can be simplified, and the floor space is reduced;

2. by arranging the flow regulating device 6 and the switching device 7, medical staff can switch air inlet modes through the flow regulating device 6 and the switching device 7, so that the air supply modes are enriched, and the use convenience of the medical staff is improved;

3. because the gas exhaled by the patient 200 does not contain anesthetic gas, the gas exhaled by the patient 200 can be directly exhausted into the air, and the patient 200 cannot re-inhale the exhaled gas, so that a carbon dioxide absorbent does not need to be arranged in a pipeline, medical workers naturally do not need to pay attention to whether the carbon dioxide absorbent needs to be replaced at any time, the use convenience is improved, and meanwhile, the miniaturization of the anesthesia machine can be further realized;

4. when the inspiration pipeline 3 is communicated with the automatic air inlet pipeline 1, namely, automatic air inlet is performed, the gas exhaled by the patient 200 is discharged through the first exhalation pipeline 4; when the inhalation pipeline 3 is communicated with the manual air inlet pipeline 2, namely, manual air inlet, the gas exhaled by the patient 200 is exhausted through the second exhalation pipeline 5, so that the exhaust modes of automatic air inlet and manual air inlet are distinguished, and the gas exhaled by the patient 200 is smoothly exhausted.

Further, the anesthesia machine gas circuit system 100 further includes an exhalation valve 41, the exhalation valve 41 is disposed on the first exhalation pipe 4, the first exhalation pipe 4 is communicated with the inhalation pipe 3 through a switching device 7, and the switching device 7 and the exhalation valve 41 are both used for controlling the on-off of the first exhalation pipe 4.

In the embodiment, by providing the expiratory valve 41 on the first expiratory line 4 and communicating the first expiratory line 4 with the inspiratory line 3 through the switching device 7, when automatically feeding air, the expiratory valve 41 can be turned on or off according to the intake rhythm of the automatic air feeding line 1 and the breathing rhythm of the patient 200 by discharging the gas exhaled by the patient 200 through the first expiratory line 4, because the automatic air feeding mode is adopted and the switching device 7 communicates the expiratory line 8 with the first expiratory line 4, specifically, when the expiratory line 8 is communicated with the first expiratory line 4 through the switching device 7, the expiratory line 8 is not turned on with the second expiratory line 5 through the switching device 7, when the patient 200 exhales, the expiratory valve 41 is opened, so that the first expiratory line 4 can discharge the gas exhaled by the patient 200, and when the patient 200 inhales, the expiratory valve 41 is closed, to avoid outside air being inhaled by the patient 200 through the exhalation valve 41, the exhalation valve 41 may be controlled pneumatically or electrically. The specific type of the exhalation valve 41 can be set according to the actual situation, and this embodiment is not limited to this.

It is important to note that when the switching device 7 is not powered, the switching device 7 can be manually operated to make the inhalation tube 3 (i.e. the exhalation tube 8) and the second exhalation tube 5 conductive, and to make the inhalation tube 3 (i.e. the exhalation tube 8) and the first exhalation tube 4 non-conductive, so as to ensure that the exhaled air of the patient 200 is discharged through the second exhalation tube 5 during manual inhalation.

Further, the anesthesia machine gas path system 100 further comprises an exhaust valve 51, the exhaust valve 51 is arranged on the second expiratory line 5, the second expiratory line 5 is communicated with the inspiratory line 3 through a switching device 7, and the switching device 7 is further used for controlling the second expiratory line 5 to be switched on and off.

In the present embodiment, the second expiratory line 5 is communicated with the inspiratory line 3 through the switching device 7, and when the patient is automatically supplied with air, the second expiratory line 5 is closed through the switching device 7, and the first expiratory line 4 is opened through the switching device 7, so that the gas expired by the patient 200 is discharged from the first expiratory line 4, and when the patient is manually supplied with air, the second expiratory line 5 is opened through the switching device 7, and the first expiratory line 4 is closed through the switching device 7, so that the gas expired by the patient 200 can reach the second expiratory line 5, and finally the gas expired by the patient 200 is discharged through the exhaust valve 51, it is important to point that the switching device 7 can be manually operated, so that the inspiratory line 3 (i.e. the exhaust line 8) is communicated with the second expiratory line 5 and is not communicated with the first expiratory line 4; the exhaust valve 51 may be embodied as an APL (adjustable Pressure limiting) valve, also called a spill valve or a Pressure reducing valve, through which the gas exhaled by the patient 200 is exhausted.

Further, the anesthesia machine gas circuit system 100 further includes an expiratory flow meter 81, and the first expiratory line 4 and the second expiratory line 5 are both communicated with the inspiratory line 3 through the expiratory flow meter 81.

In this embodiment, as shown in fig. 1, the first expiratory line 4 and the second expiratory line 5 may have a common outlet line 8, the expiratory flow meter 81 is disposed on the outlet line 8, and both the first expiratory line 4 and the second expiratory line 5 are communicated with the inspiratory line 3 through the expiratory flow meter 81 on the outlet line 8, so that the same expiratory flow meter 81 can detect the size of the airflow of the first expiratory line 4 and the size of the airflow of the second expiratory line 5, the number of the expiratory flow meters 81 used is reduced, and the cost is saved.

It can be understood that the first expiratory line 4 and the second expiratory line 5 may also be two independent lines, the first expiratory line 4 and the second expiratory line 5 are respectively communicated with the inspiratory line 3 through an expiratory flow meter 81, at this time, two expiratory flow meters 81 are required to respectively detect the sizes of the airflows of the first expiratory line 4 and the second expiratory line 5, and meanwhile, a switch may be disposed on the first expiratory line 4 so as to manually operate the switch, so that the first expiratory line 4 is conducted or not conducted. The size of the airflow detected by the expiratory flow meter 81 can be displayed through a display device for medical staff to check.

In the present embodiment, the first exhalation pipe 4 and the second exhalation pipe 5 communicate with the exhalation pipe 8 through the switching device 7, so that the switching device 7 controls the opening and closing of the first exhalation pipe 4 and the second exhalation pipe 5.

Further, the anesthesia machine airway system 100 further comprises a manual air bag 24, and the manual air bag 24 is communicated with the second exhalation tube 5 and connected between the exhaust valve 51 and the switching device 7.

In the present embodiment, the manual air bag 24 is located between the exhaust valve 51 and the switching device 7 by connecting the manual air bag 24 with the second exhalation pipeline 5, when manual air intake is performed, the second exhalation pipeline 5 is connected with the inhalation pipeline 3 (i.e. the air outlet pipeline 8) through the switching device 7, the first exhalation pipeline 4 is disconnected with the inhalation pipeline 3 (i.e. the air outlet pipeline 8) through the switching device 7, the automatic air intake pipeline 1 is disconnected through the flow regulating device 6, the air flow entering from the manual air intake pipeline 2 reaches the inhalation pipeline 3 through the switching device 7, meanwhile, the medical staff gives positive pressure ventilation to the second exhalation pipeline 5 by pinching the manual air bag 24 with hands, so that the air flow in the manual air bag 24 reaches the air outlet pipeline 8 through the second exhalation pipeline 5 through the switching device 7, at this time, the air flow entering from the manual air intake pipeline 2 and the air flow entering from the second exhalation pipeline 5 join at the inhalation position of the patient 200, so that the patient 200 can inhale the air flow during manual air intake, when exhaling, the air exhaled by the patient 200 reaches the inhalation pipeline 3, is combined with the air flow in the inhalation pipeline 3 and reaches the second exhalation pipeline 5 through the air outlet pipeline 8, part of the air enters the manual air bag 24, part of the air is exhausted through the exhaust valve 51, and the air entering the manual air bag 24 is gradually exhausted through the exhaust valve 51 at the inspiration gap of the patient 200, thereby realizing manual air intake and exhaust. It will be appreciated that the exhaust efficiency of the exhaust valve 51 may be controlled by the APL valve set-point, which may be manually adjusted.

Further, the manual air bag 24 is arranged on the second expiration pipeline 5, so that the manual air bag 24 is connected between the exhaust valve 51 and the switching device 7, when manual air intake is performed, the air flow pressed into the air outlet pipeline 8 through the manual air bag 24 is merged with the air flow entering the air intake pipeline 3 from the manual air intake pipeline 2 at the air intake part of the patient 200, and then the air flow is inhaled by the patient 200 for breathing, so that the phenomenon that the air flow inhaled by the patient 200 is too much and exceeds the inhalation limit of the patient 200 can be avoided, and the normal breathing of the patient 200 is ensured.

Further, the anesthesia machine airway system 100 further includes a controller 9, and the switching device 7, the flow regulating device 6 and the exhalation valve 41 are all electrically connected to the controller 9.

In the present embodiment, the controller 9 is configured to control the switching device 7, the flow rate regulating device 6, and the exhalation valve 41, so as to control the switching device 7, the flow rate regulating device 6, and the exhalation valve 41 to work in coordination, specifically, when automatic air intake is performed, the controller 9 controls the switching device 7, so that the switching device 7 is not in conduction with the manual air intake pipeline 2 and the second exhalation pipeline 5, so that the switching device 7 is in conduction with the first exhalation pipeline 4, and the exhalation valve 41 is controlled by the controller 9, so as to adapt the exhaust of the exhalation valve 41 to the rhythm of automatic air intake.

Further, the anesthesia machine gas circuit system 100 further comprises a state detection sensor 10, the state detection sensor 10 is electrically connected with the controller 9 and is used for detecting the conduction state of the switching device 7, and the state detection sensor 10 can detect whether the automatic air inlet pipeline 1 is conducted or not, so that the controller 9 controls the corresponding flow regulating device 6, the exhalation valve 41 and the switching device 7 to perform corresponding execution operations, and automatic air inlet or manual air inlet is realized.

In this embodiment, for example, the state detection sensor 10 is a micro switch, and when the switching device 7 is a solenoid valve, the micro switch determines the conducting state of the solenoid valve by detecting a piston of the solenoid valve, of course, the state detection sensor 10 may be other types of sensors, and this embodiment is not limited thereto.

In this embodiment, the method for detecting whether the automatic intake pipe 1 is conducted by the state detection sensor 10 includes: the switching device 7 is manually operated to enable the first expiration pipeline 4 to be communicated with the inspiration pipeline 3, and enable the manual air inlet pipeline 2 to be disconnected (which can be realized by manually closing the flow regulating device 6), then the automatic ventilation state of the switching device 7 is detected through the state detection sensor 10, when the first expiration pipeline 4 is communicated with the switching device 7, the automatic air inlet pipeline 1 is communicated, otherwise, if the first expiration pipeline 4 is not communicated with the switching device 7, the automatic air inlet pipeline 1 is not communicated.

Further, as shown in fig. 1 and 4, the switching device 7 includes a manual air inlet 71, an automatic air outlet 72, a manual air outlet 73, an inhalation port 74 and an exhalation port 75, the automatic air intake pipeline 1 includes an automatic oxygen branch pipeline 11 and an automatic air branch pipeline 12, and both the automatic oxygen branch pipeline 11 and the automatic air branch pipeline 12 are communicated with the inhalation pipeline 3; the manual air inlet pipeline 2 comprises a manual oxygen branch 21 and a manual air branch 22, and the manual oxygen branch 21 and the manual air branch 22 are both communicated with a manual air inlet 71 and communicated with the air suction pipeline 3 through an air suction port 74; the first exhalation pipeline 4 is communicated with the automatic air outlet 72, the second exhalation pipeline 5 is communicated with the manual air outlet 73, and the automatic air outlet 72 and the manual air outlet 73 are communicated with the inhalation pipeline 3 through the exhalation port 75.

In the present embodiment, the switching device 7 includes a manual air inlet 71, an automatic air outlet 72, a manual air outlet 73, an inhalation port 74, and an exhalation port 75, so that the switching device 7 communicates with each branch respectively; the automatic air intake pipeline 1 comprises an automatic oxygen branch 11 and an automatic air branch 12, the automatic oxygen branch 11 and the automatic air branch 12 are both communicated with the inhalation pipeline 3, it can be understood that the automatic oxygen branch 11 and the automatic air branch 12 can be respectively and independently connected to the inhalation pipeline 3, and after oxygen and air enter the inhalation pipeline 3, the oxygen and air are mixed and supplied to the patient 200 for inhalation.

Similarly, the manual air intake pipeline 2 includes a manual oxygen branch 21 and a manual air branch 22, both the manual oxygen branch 21 and the manual air branch 22 are communicated with the manual air intake port 71 and are communicated with the inhalation pipeline 3 through the air intake port 74, it can be understood that the manual oxygen branch 21 and the manual air branch 22 can be independently connected to the manual air intake port 71, and after oxygen and air enter the switching device 7 and the inhalation pipeline 3, oxygen and air are mixed and are inhaled by the patient 200; the manual oxygen branch 21 and the manual air branch 22 can also be communicated with the manual air inlet 71 through a section of common manual air inlet pipeline 23, and the advanced mixing of oxygen and air is realized in the common manual air inlet pipeline 23, so that the oxygen and the air are mixed more fully; the inhalation port 74 may communicate with the inhalation line 3 through a segment of common manual connection line to allow for sufficient mixing of oxygen and air upon entering the common manual connection line, it being understood that the manual air branch 22 may be eliminated and only the manual oxygen branch 21 is left to provide oxygen to the patient 200.

In this embodiment, the first exhalation pipeline 4 is communicated with the automatic air outlet 72, the second exhalation pipeline 5 is communicated with the manual air outlet 73, and the automatic air outlet 72 and the manual air outlet 73 are communicated with the inhalation pipeline 3 through the exhalation port 75, when the patient 200 exhales, the air exhaled by the patient 200 firstly enters the switching device 7 through the exhalation port 75, and then is communicated with the first exhalation pipeline 4 or the second exhalation pipeline 5 through the switching device 7, so as to realize the selection of the exhalation pipeline. Specifically, when the air is automatically fed, the automatic air outlet 72 is opened and the manual air outlet 73 is closed, and when the air is manually fed, the automatic air outlet 72 is closed and the manual air outlet 73 is opened.

Further, as shown in fig. 1, an air intake flow meter 20 and a flow rate adjusting device 6 are disposed on the automatic oxygen branch 11, the automatic air branch 12, the manual oxygen branch 21 and the manual air branch 22; and/or the automatic oxygen branch 11 and the manual oxygen branch 21 share the oxygen inlet 13, the automatic air branch 12 and the manual air branch 22 share the air inlet 14, and filters 15 are arranged at the downstream positions of the oxygen inlet 13 and the air inlet 14 in the air inlet direction.

In this embodiment, the automatic oxygen branch 11, the automatic air branch 12, the manual oxygen branch 21 and the manual air branch 22 are respectively provided with the air intake flow meter 20 and the flow rate adjusting device 6, the air intake flow meter 20 and the flow rate adjusting device 6 can be further electrically connected with the controller 9, the air flow on the corresponding branch is detected through the air intake flow meter 20, the detected air flow information is sent to the controller 9, the controller 9 can control the flow rate adjusting device 6 to adjust the air flow on the corresponding branch and the on-off of the corresponding branch, and the controller 9 can also send the air flow information to the display device for displaying, so that the medical staff can check and adjust the air flow. Specifically, the flow rate adjusting device 6 may be an electromagnetic proportional valve or a turbine, a valve group or a valve island including an on-off valve, or a flow rate control valve including a motor, and the present embodiment is not limited thereto. It is understood that the intake flow meter 20 and the flow rate adjusting device 6 may be respectively disposed only on the pipeline where the automatic oxygen branch 11 and the automatic air branch 12 are merged and on the common manual intake pipeline 23, the flow rate of the mixed gas of oxygen and air on the corresponding pipeline is detected by the intake flow meter 20, and the flow rate of the mixed gas on the corresponding branch is adjusted by the flow rate adjusting device 6.

In this embodiment, the automatic oxygen branch 11 and the manual oxygen branch 21 share the oxygen inlet 13, and the automatic air branch 12 and the manual air branch 22 share the air inlet 14, so that the filters 15 can be disposed at positions downstream of the oxygen inlet 13 and the air inlet 14 in the air intake direction, and therefore the number of the filters 15 used can be reduced, which saves cost, the filters 15 are used for filtering particles in the air and the oxygen, and the size of the particles that can be specifically filtered can be selected according to actual needs, which is not limited herein. It will be appreciated that the automatic oxygen branch 11, the automatic air branch 12, the manual oxygen branch 21 and the manual air branch 22 may have respective independent air inlets, and in this case, a filter 15 may be disposed downstream of the air inlets of the automatic oxygen branch 11, the automatic air branch 12, the manual oxygen branch 21 and the manual air branch 22 to independently filter the air flows in the respective branches.

In the embodiment, the flow regulating devices 6 arranged on the automatic oxygen branch 11 and the automatic air branch 12 are electrically connected with the controller 9, so that the automatic air intake is conveniently realized through the electric control of the controller 9; the flow regulating devices 6 arranged on the manual oxygen branch 21 and the manual air branch 22 are both manually controlled, so that manual air intake is realized through manual operation.

In the embodiment, the manual oxygen branch 21 and the manual air branch 22 are switched on and off through the flow regulating device 6 by manual operation, the manual air inlet 71 and the air inlet 74 are always kept in a conduction state and are not conducted with the automatic air outlet 72, the manual air outlet 73 and the exhalation port 75, so that air entering from the manual air inlet pipeline 2 and exhalation from the first exhalation pipeline 4 and the second exhalation pipeline 5 are not interfered with each other; in another alternative, the manual air inlet 71 and/or the air suction opening 74 may be opened or closed to control the on/off of the manual air inlet pipe 2.

Further, as shown in fig. 1, the anesthesia machine gas circuit system 100 further includes a one-way valve 30, and the automatic gas inlet pipeline 1 and the manual gas inlet pipeline 2 are both provided with the one-way valve 30; and/or

The humidifying device 31, the humidifying device 31 is arranged on the air suction pipeline 3; and/or

An intake air flow meter 32, the intake air flow meter 32 being provided on the intake pipe 3.

In this embodiment, the automatic air intake pipeline 1 and the manual air intake pipeline 2 are both provided with a one-way valve 30, the one-way valve 30 allows the air flow in the automatic air intake pipeline 1 and the manual air intake pipeline 2 to flow to the inhalation pipeline 3 in a one-way manner, and then flow to the nose and mouth of the patient 200 through the inhalation pipeline 3 for inhalation by the patient 200, but the one-way valve 30 does not allow the air exhaled by the patient 200 to flow back to the automatic air intake pipeline 1 and the manual air intake pipeline 2 through the one-way valve 30, so that the air exhaled by the patient 200 is exhausted from the first exhalation pipeline 4 or the second exhalation pipeline 5.

In this embodiment, the automatic oxygen branch 11, the automatic air branch 12, the manual oxygen branch 21, the manual air branch 22, the pipeline where the automatic oxygen branch 11 and the automatic air branch 12 are merged, and the common manual air inlet pipeline 23 are all provided with one-way valves 30; when the automatic oxygen branch passage 11 and the manual oxygen branch passage 21 share the oxygen inlet 13 and the automatic air branch passage 12 and the manual air branch passage 22 share the air inlet 14, a check valve 30 may be provided downstream of the oxygen inlet 13 and the air inlet 14 in the air intake direction (specifically, a check valve 30 may be provided downstream of the filter 15 in the air intake direction), and a check valve 30 may be provided on both the passage where the automatic oxygen branch passage 11 and the automatic air branch passage 12 join and the shared manual air intake passage 23. By arranging the check valve 30 in the above manner, backflow mixing of oxygen and air from the oxygen inlet 13 and the air inlet 14 can be avoided, and backflow to the automatic air inlet pipeline 1 or the manual air inlet pipeline 2 after mixing of oxygen and air can also be avoided.

In this embodiment, the humidification device 31 is provided in the inhalation tube 3 to humidify the gas to be inhaled by the patient 200, thereby increasing the humidity of the gas inhaled by the patient 200.

In this embodiment, through set up the flowmeter 32 of breathing in on the pipeline 3 of breathing in, the flowmeter 32 of breathing in can further be connected with controller 9, and controller 9 can send the air current size information that the flowmeter 32 of breathing in detected for display device to show, thereby make things convenient for medical personnel to look over, and can adjust the air current size in the pipeline 3 of breathing in based on this control flow adjusting device 6.

In order to achieve the above object, the present invention further provides an anesthesia machine, which includes the above anesthesia machine gas circuit system 100. Since the anesthesia machine comprises the anesthesia machine gas circuit system 100 as described above, the anesthesia machine gas circuit system has at least the beneficial effects of the anesthesia machine gas circuit system 100, which are not described herein.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the technical solutions of the present invention, which are made by using the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides an anesthesia machine gas circuit system, its characterized in that, anesthesia machine gas circuit system supplies the patient to breathe when being used for intravenous anesthesia, anesthesia machine gas circuit system includes:

the flow regulating device is arranged on the automatic air inlet pipeline;

2. The anesthesia machine airway system of claim 1, further comprising:

3. The anesthesia machine airway system of claim 2, further comprising:

4. The anesthesia machine airway system of claim 1, further comprising:

5. The anesthesia machine airway system of claim 3, further comprising:

6. The anesthesia machine airway system of claim 3, further comprising:

7. The anesthesia machine airway system of claim 1, wherein said switching means comprises a manual air inlet, an automatic air outlet, a manual air outlet, an inhalation port and an exhalation port;

8. The anesthesia machine gas circuit system of claim 7, wherein said automatic oxygen branch, said automatic air branch, said manual oxygen branch and said manual air branch are provided with an inlet air flow meter and said flow regulating device; and/or the presence of a catalyst in the reaction mixture,

9. The anesthesia machine airway system of any of claims 1-8, further comprising:

The humidifying device is arranged on the air suction pipeline; and/or

And the air suction flow meter is arranged on the air suction pipeline.

10. An anesthesia machine comprising an anesthesia machine gas circuit system of any of claims 1-9.