CN219323754U - Anesthesia machine - Google Patents

Abstract

An anaesthesia machine comprises a shell, a breathing passage, an air supply module, a medicine supply module, a main control module and a detection module; the breathing passage, the air supply module, the medicine supply module, the main control module and the detection module are all arranged in the shell; the respiratory passage comprises an inhalation branch and an exhalation branch; the gas feeding module and the drug feeding module are sequentially communicated to the gas suction branch, the gas feeding module provides oxygen with specific concentration for a receptor, and the drug feeding module provides drugs for the receptor; the detection module is arranged on the air suction branch circuit to detect the oxygen concentration of the air suction branch circuit; the main control module is electrically connected with the gas supply module and the detection module respectively and is used for receiving the oxygen concentration of the gas suction branch and adjusting the parameters for supplying oxygen to the gas supply module according to the oxygen concentration of the gas suction branch.

Description

Anesthesia machine

Technical Field

The application relates to the field of medical equipment, in particular to an anesthesia machine.

Background

The function of the anesthesia machine is to carry out inhalation anesthesia on a target object, the anesthesia medicine is sent into alveoli of a receptor through a mechanical loop, and then the anesthesia medicine is diffused into blood through blood oxygen circulation in the alveoli to generate an inhibition effect on a central nervous system, so that the effect of general anesthesia is realized. The traditional anesthesia machine needs to be externally connected with an oxygen source, such as an oxygen bottle or other oxygen loads, the external oxygen source is generally heavy and inconvenient to move, and the external oxygen source is required to be moved together while the anesthesia machine is moved, so that the mobility and the flexibility of the anesthesia machine are poor; and the gas for transporting the gunpowder in the anesthesia process is mainly oxygen, and has certain requirements on oxygen concentration and oxygen flow, and the adjustability and oxygen supply accuracy of the external oxygen source are poor, and if the oxygen concentration is too high or too low, the animal anesthesia operation can be adversely affected. Therefore, how to ensure the oxygen supply accuracy of the anesthesia machine becomes a key problem under the condition of improving the maneuverability and the flexibility of the anesthesia machine.

Disclosure of Invention

The utility model provides an object provides an anesthesia machine, this anesthesia machine can be from the oxygen source, when possessing higher mobility and flexibility, can also provide the higher anesthetic drug mixing oxygen of accuracy.

In order to achieve the purpose of the application, the application provides the following technical scheme:

an anesthesia machine comprises a shell, a breathing passage, an air supply module, a medicine supply module, a main control module and a detection module; the breathing passage, the air supply module, the medicine supply module, the main control module and the detection module are all arranged in the shell; the respiratory passage comprises an inhalation branch and an exhalation branch; the air supply module and the drug delivery module are sequentially communicated to the air suction branch, the air supply module provides oxygen with specific concentration for a receptor, and the drug delivery module provides drugs for the receptor; the detection module is arranged on the air suction branch circuit to detect the oxygen concentration of the air suction branch circuit; the main control module is respectively and electrically connected with the air supply module and the detection module and is used for receiving the oxygen concentration of the air suction branch and adjusting the parameters for providing oxygen for the air supply module according to the oxygen concentration of the air suction branch.

In one embodiment, the detection module is further configured to detect a drug concentration in the inhalation branch; the main control module is also electrically connected with the drug delivery module, so as to adjust the parameters of the drug delivery module for providing the drugs according to the drug concentration of the air suction branch.

In one embodiment, the respiratory pathway further comprises a first port, a second port, and a third port through the housing, the first port and the third port in gaseous communication with the outside world, the second port for communication with a subject; the first port and the second port are respectively connected to two ends of the inspiration branch, and the second port is also connected with one end of the expiration branch; the third port is connected with the other end of the expiration branch.

In one embodiment, the respiratory passage further comprises a reflux branch, and two ends of the reflux branch are respectively communicated with the inhalation branch and the exhalation branch, so as to reflux the exhaled gas of the subject to the inhalation branch.

In one embodiment, the return branch further comprises a first filtering unit to filter the exhaled gas and return the filtered exhaled gas to the inhalation branch.

In one embodiment, the air supply module comprises a pressurizing unit and an oxygen generating unit which are communicated, the main control module controls the pressurizing unit to pressurize air, and the main control module also controls the oxygen generating unit to extract oxygen with specific concentration from the pressurized air.

In one embodiment, the air supply module further comprises a second filtering unit in communication with the pressurizing unit, the second filtering unit being configured to filter air and to deliver the filtered air to the pressurizing unit.

In one embodiment, the air supply module further comprises a humidifying unit communicated with the oxygen generating unit, and the main control module further controls the humidifying unit to humidify oxygen output from the oxygen generating unit.

In one embodiment, the administration module includes an evaporation unit in communication with the oxygen generation unit such that oxygen provided by the administration module flows through the evaporation unit for mixing the drug with the oxygen flowing through the evaporation unit.

In one embodiment, the drug delivery module further comprises a rapid oxygen unit, wherein the rapid oxygen unit is connected with the evaporation unit in parallel and used for rapidly providing oxygen for a receptor, and the main control module is used for switching the evaporation unit or the rapid oxygen unit to be communicated with the gas delivery module.

In one embodiment, the inhalation module further comprises a second regulating unit in communication with the administration module, the second regulating unit being configured to regulate the respiratory rate of the subject, and the gas output from the administration module flowing into the subject via the second regulating unit.

In one embodiment, the expiratory limb further comprises a breath holding unit for increasing the air resistance of the expiratory limb, holding the expiratory positive pressure of the subject.

According to the utility model, the air supply module is arranged in the anesthesia machine, and the air supply module is used for supplying and receiving the mixed oxygen with the specific concentration and the medicine for inhalation, so that an air supply mode of a self-provided oxygen source in the traditional anesthesia machine can be eliminated, the air supply module becomes a fixing device in the anesthesia machine, the requirement of continuous oxygen supply of the anesthesia machine can be met, in addition, in the process of carrying and moving the anesthesia machine, the carrying of an oxygen bottle or other oxygen loads can be avoided, and the maneuverability and flexibility of the anesthesia machine are improved; and, this disclosure still adjusts the parameter of the oxygen suppliment and the medicine of giving the air module and giving the medicine module through the master control module for the anesthesia machine can accurate nimble parameter in the regulation anesthesia process, has improved the accuracy of anesthesia operation.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an anesthesia machine of an embodiment;

FIG. 2 is a schematic diagram showing a specific structure of an anesthesia machine according to an embodiment;

FIG. 3 is a schematic diagram of an embodiment of an air feed module;

fig. 4 is a schematic structural view of an administration module according to an embodiment.

Reference numerals illustrate: 100-main control module, 200-detection module, 300-gas feeding module, 301-second filtering unit, 302-pressurizing unit, 3021-gas tank, 3022-compressor, 3023-cooler, 303-oxygen generating unit, 3031-solenoid valve, 3032-exhaust muffler, 3033-molecular tower, 3034-oxygen tank, 304-humidifying unit, 3041-overflow valve, 3042-filter box, 3043-pressure release valve, 3044-first gas valve, 3045-second gas valve, 3046-humidification tank, 3047-third gas valve, 400-gas feeding module, 401-evaporating unit, 4011-evaporator, 4012-control valve, 4013-manual air bag, 402-rapid oxygen unit, 403-second regulating unit, 501-first filtering unit, 502-inhalation unit, 503-exhalation unit, 601-first regulating unit, 701-breath holding unit, 702-third filtering unit, 10-housing, 20-breathing passage, 20A-inhalation branch, 20B-reflux branch, 20C-30C-first port, 30C-30-second port, 30C-third port.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "connected" to another component, it can be directly connected to the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

Referring to fig. 1 and 2, the anesthesia machine can be applied to surgical operations, biological medicine, clinical trial research and teaching experiments. The anesthesia machine comprises a shell 10, a breathing passage 20, an air supply module 300, a medicine supply module 400, a main control module 100 and a detection module 200; the breathing passage 20, the air supplying module 300, the medicine supplying module 400, the main control module 100 and the detecting module 200 are all arranged in the shell 10; the respiratory pathway 20 includes an inhalation branch 20A, an exhalation branch 20B; the air feeding module 300 and the medicine feeding module 400 are sequentially communicated to the air suction branch 20A, the air feeding module 300 supplies oxygen with specific concentration for a receptor, and the medicine feeding module 400 supplies medicine for the receptor;

the detection module 200 is disposed on the air suction branch 20A to detect the oxygen concentration of the air suction branch 20A; the main control module 100 is electrically connected to the gas supplying module 300 and the detecting module 200, and is configured to receive the oxygen concentration of the gas suction branch 20A, and adjust the parameters of supplying oxygen to the gas supplying module 300 according to the oxygen concentration of the gas suction branch 20A.

Specifically, the oxygen of a specific concentration provided by the gas feeding module 300 may be from an external air or external high pressure source, and in other embodiments, the gas feeding module 300 may also be used to provide air of a specific concentration, and a pressure reducing valve may be provided at the gas outlet end of the gas feeding module 300, or a pressure reducing valve may be provided at the gas inlet end of the gas feeding module 400, to control the stability of the gas provided by the gas feeding module 300.

The administration module 300 and the administration module 400 may communicate via the inhalation branch 20A, and oxygen provided by the administration module 300 may be delivered to the administration module 400 via the inhalation branch 20A, and the administration module 400 provides a specific drug, preferably an anesthetic. And, the anesthetic may include laughing gas (nitrous oxide), diethyl ether, isoflurane, sevoflurane, etc.; and the liquid anesthetic can be prepared into inhalable atomized liquid and oxygen to be mixed in an atomization mode. In other embodiments, the air delivery module 300 and the drug delivery module 400 may have separate air outlets, respectively, where the air delivery module 300 delivers oxygen to the air intake branch 20A, and the drug delivery module 400 delivers drug to the air intake branch 20A, where the oxygen and drug are mixed in the air intake branch 20A.

Further, the main control module 100 may be a single chip microcomputer, a Central Processing Unit (CPU) or a Micro Control Unit (MCU). The main control module 100 may be configured to receive an instruction given by a user, and control the supply of oxygen with a specific concentration to the gas module 300 according to the instruction. The detection module 200 may include a variety of different types of sensors, including, but not limited to, flow sensors, pressure sensors, concentration sensors, or element sensors, among others. The detection module 200 may be electrically connected to the main control unit, and send the detected data to the main control unit, and the main control unit may adaptively adjust the control of the air supply module 300 according to the detected data.

In this embodiment, the anesthesia machine further includes an interaction module, and the interaction module may include the display and the touch controller related to the above embodiment. The interaction module may be electrically connected with the main control module 100; preferably, the display unit in the interaction module may be electrically connected to the detection module 200, for displaying the data detected by the detection module 200.

According to the utility model, the air supply module 300 is arranged in the anesthesia machine, and the air supply module 300 is used for supplying and sucking oxygen with specific concentration after being mixed with the medicine, so that an air supply mode of a traditional anesthesia machine, which needs a self-provided oxygen source, can be eliminated, the air supply module 300 is a fixing device in the anesthesia machine, the requirement of continuous oxygen supply of the anesthesia machine can be met, in addition, in the process of carrying and moving the anesthesia machine, the carrying of an oxygen bottle or other oxygen loads can be avoided, and the mobility and the flexibility of the anesthesia machine are improved; and, this disclosure still through master control module 100 and detection module combined action with the oxygen supply parameter of regulation gas supply module 300 for the anesthesia machine can accurate nimble regulation anesthesia in-process oxygen parameter, has improved the accuracy of anesthesia operation.

In one embodiment, referring to fig. 1 and 2, the detection module 200 is further configured to detect a drug concentration in the inhalation branch 20A; the main control module 100 is further electrically connected to the administration module 400 to adjust the parameters of the administration module 400 for providing the drug according to the drug concentration of the inhalation branch 20A. Specifically, the main control module 100 may also control the drug delivery module 400 to provide a specific concentration of the drug according to the user command, and the detection module 200 detects the real-time concentration of the drug.

In one embodiment, referring to fig. 1 and 2, the respiratory passage 20 further includes a first port 30A, a second port 30B and a third port 30C penetrating the housing 10, the first port 30A and the third port 30C being in gaseous communication with the outside, the second port 30B being for communication with a subject; the first port 30A and the second port 30B are respectively connected to two ends of the inspiration limb 20A, and the second port 30B is also connected to one end of the expiration limb 20B; the third port 30C is connected to the other end of the expiratory limb 20B.

In one embodiment, referring to fig. 1 and 2, the respiratory circuit 20 further includes a return branch 20C, and two ends of the return branch 20C are respectively connected to the inhalation branch 20A and the exhalation branch 20B, so as to return the exhaled air of the subject to the inhalation branch 20A.

Specifically, the reflux branch 20C is respectively connected to a first filtering unit 501, an inhalation unit 502, and an exhalation unit 503. The inhalation unit 502 is also in communication with the inhalation branch 20A and the exhalation unit 503 is also in communication with the exhalation branch 20B. Both the inhalation unit 502 and the exhalation unit 503 may include one-way valves. Oxygen mixed with the drug can flow to the recipient through the check valve in the inhalation unit 502, and due to the structural characteristics of the check valve, the oxygen cannot flow back to the administration module 400 through the recipient, thereby ensuring the normal inhalation of the recipient. And the exhaust gas exhaled by the patient can flow out of the anesthesia machine or back through the check valve in the exhale unit 503, and the exhaust gas can not flow back into the subject, so that the normal exhale of the subject can be ensured.

Further, the inhalation unit 502 and the exhalation unit 503 may further include a sensor that can be used to detect the respiration of the subject, and the type of the sensor is not particularly limited. It will be appreciated that one of the purposes of the exhalation unit 503 and the inhalation unit 502 is to prevent backflow of the gas inhaled by the subject and the gas or exhaled by the subject, so as to ensure the respiratory function of the subject during the anesthesia process, and prevent the subject from being injured, so that the specific connection manner of other devices in the exhalation unit 503 and the inhalation unit 502 is not limited.

In one embodiment, referring to fig. 2, the reflux branch 20C further includes a first filtering unit 501 to filter the exhaled air and reflux the filtered exhaled air into the inhalation branch 20A. Specifically, when the subject is a relatively large animal, the exhaled gas contains a relatively large amount of the remaining drug, the exhalation unit 503 may be in communication with the first filtration unit 501, and the exhaled gas may flow into the first filtration unit 501. The first filter unit 501 may include, but is not limited to, a gas tank, a filter, and a carbon dioxide recovery unit. In this embodiment, the first filtering unit 501 may realize recovery of the remaining medicine by exhausting carbon dioxide in the exhaled exhaust gas; of course, in other embodiments, the first filtering unit 501 may also directly filter the drug from the exhaust gas, and concentrate for recycling.

Further, the first filtering unit 501 may be in communication with the inhalation unit 502, and the recovered medicine may be directly discharged to the inhalation unit 502 to be mixed with oxygen in the inhalation unit 502. Also, after the medicine is recovered and discharged using the first filtering unit 501, the user can control the medicine feeding module 400 to release a small amount of medicine through the main control module 100 so that the amount of medicine finally inhaled by the recipient is maintained within a proper range. Preferably, the first filtering unit 501 may be further electrically connected to the main control module 100, and the main control module 100 may control the amount of the drug discharged from the first filtering unit 501 to the air suction unit 502, and may also control specific parameters of the drug recovered from the first filtering unit 501.

In an embodiment, referring to fig. 1 to 3, the air supply module 300 includes a pressurizing unit 302 and an oxygen generating unit 303 that are connected to each other, the main control module 100 controls the pressurizing unit 302 to pressurize air, and the main control module 100 also controls the oxygen generating unit 303 to extract oxygen with a specific concentration from the pressurized air.

Specifically, the pressurizing unit 302 may include a gas tank 3021, a compressor 3022, and a cooler 3023, and the pressurizing unit 302 and the oxygen generating unit 303 may be connected to a gas line, and the pressurizing unit 302 may be located in front of the oxygen generating unit 303 in the direction of the flow of the gas in the pipe. The oxygen generation unit 303 may include a solenoid valve 3031, an exhaust muffler 3032, a molecular tower 3033, and an oxygen tank 3034. After the external gas (such as oxygen or air) flows into the gas feeding module 300 through the gas inlet end, the external gas can sequentially pass through the pressurizing unit 302 and the oxygen generating unit 303, and after the pressurizing unit 302 pressurizes the external gas, a gas pressure difference can be formed in the gas pipeline, so that the gas can automatically flow in the gas pipeline. The oxygen generation unit 303 may be a molecular sieve oxygenerator that includes a plurality of molecular sieve vessels for oxygen generation, through which high concentrations of oxygen can be produced after air or a low oxygen gas enters the vessels. Further, the main control module 100 may control the pressurizing unit 302 to pressurize the flowing gas to a preset pressure. For example, the main control module 100 is connected with an interaction device, such as a display and a touch controller (a mouse, a keyboard or a touch pad), through which a user can give a preset pressure instruction to the main control module 100, and the main control module 100 can control the pressurizing unit 302 to pressurize the flowing gas according to the preset pressure instruction.

The main control module 100 may also control the oxygen generating unit 303 to generate oxygen with a specific concentration from the gas flowing through. For example, the user may issue an instruction of a specific concentration of oxygen to the main control module 100 through the above-mentioned interaction device, and the main control module 100 may control the oxygen generating unit 303 to generate oxygen from the gas flowing through according to the instruction of the specific concentration of oxygen.

Preferably, the detection module 200 may also detect real-time data of the pressurizing unit 302 and the oxygen generating unit 303, for example, a pressure sensor or an oxygen sensor may be disposed on the gas pipeline, for detecting parameters of the gas flowing through the gas pipeline. And the sensor can be electrically connected with the main control module 100 and transmits the detected parameters to the detection module 200, and the detection module 200 displays the parameters through the interaction equipment, so that a user can grasp the working condition of the anesthesia machine in real time.

Through setting up pressure boost unit 302 and oxygen generation unit 303 in gas feed module 300, can control pressure boost unit 302 and oxygen generation unit 303 through master control module 100, can be convenient for the user through master control module 100 accurate regulation gas feed module 300 in the pressure of output oxygen and the concentration of oxygen, further improve the anesthesia accuracy of this anesthesia machine in the anesthesia operation.

In one embodiment, referring to fig. 1 to 3, the air supply module 300 further includes a second filtering unit 301 in communication with the pressurizing unit 302, where the second filtering unit 301 is configured to filter air and send the filtered air to the pressurizing unit 302.

Specifically, the second filtering unit 301 may include activated carbon, a filter net, a sponge, etc., for filtering impurities or harmful gases in the outside air. The second filtering unit 301 may be connected to the air inlet end and located in front of the pressurizing unit 302 on the air pipeline, so as to prevent the above-mentioned non-inhalable substances from entering the recipient body through the air pipeline, and meanwhile, the second filtering unit 301 may also filter large particle impurities in the air, so as to prevent such impurities from damaging the pressurizing unit 302 or the oxygen generating unit 303. Of course, in other embodiments, the second filtering unit 301 may also be connected after the compression unit, or after the oxygen generating unit 303, in order to prevent impurities in the pressurizing unit 302 or the oxygen generating unit 303 from flowing into the recipient body along the gas.

By providing the second filter unit 301, the cleanliness of the oxygen can be improved during the process of preparing the oxygen by the gas supplying module 300, so that the gas supplying module 300 can provide cleaner oxygen to the receptor.

In an embodiment, referring to fig. 1 to 3, the gas supply module 300 further includes a humidifying unit 304 that is in communication with the oxygen generating unit 303, and the main control module 100 further controls the humidifying unit 304 to humidify the oxygen output from the oxygen generating unit 303.

Specifically, the humidification unit 304 may include an overflow valve 3041, a filter cartridge 3042, a pressure release valve 3043, a first gas valve 3044, a second gas valve 3045, a humidification tank 3046, a third gas valve 3047. The humidifying unit 304 may be connected to the gas line and located after the oxygen generating unit 303 in the direction of the gas flow. It will be appreciated that the humidification unit 304 is provided to increase the humidity of the oxygen flowing therethrough so that the gas may meet the criteria for inhalation by the subject, thereby avoiding the subject inhaling gas too dry and causing impairment of lung function. Preferably, in this embodiment, the main control module 100 may further control the humidification unit 304, and the user may control the humidification unit 304 in the above embodiment to achieve the purpose of precisely controlling the oxygen humidity.

The humidity of the oxygen flowing through the humidification unit 304 can be increased, so that the damage to the lung function caused by excessive dryness of the inhaled gas of the receptor can be avoided.

In one embodiment, referring to fig. 1, 2 and 4, the administration module 400 includes an evaporation unit 401, and the evaporation unit 401 is in communication with the oxygen generation unit 303, such that oxygen provided by the administration module 300 flows through the evaporation unit 401, and the evaporation unit 401 is used to mix the medicine with the oxygen flowing through the evaporation unit 401.

Further, the drug delivery module 400 includes an evaporation unit 401, and the evaporation unit 401 may include a control valve 4012, an evaporator 4011, and a manual air bag 4013. The vaporizing unit 401 discharges the anesthetic gas of a specific concentration onto the suction branch 20A, and the anesthetic gas can thus be mixed with oxygen. Of course, in other embodiments, the evaporation unit 401 may also be an electronic atomizer, and the medicine may be converted into inhalable liquid beads by heating or ultrasonic atomization, and the liquid beads may be inhaled after being mixed with oxygen. The evaporation unit 401 may also be connected to the main control module 100, and the main control module 100 may control the mass or volume of the medicine released by the evaporation unit 401, and the control manner may refer to the pressurization unit 302. Of course, in other embodiments, the evaporation unit 401 may also be an automation device with an embedded program, which can release a specific mass or volume of medicine according to the embedded program, without limitation.

Through setting up evaporation unit 401 to through main control module control evaporation unit 401, can realize the accurate mixing of medicine and oxygen, the user can adjust the concentration of mixed medicine through main control module, makes anesthesia operation more accurate.

In one embodiment, referring to fig. 1, 2 and 4, the administration module 400 further includes a fast oxygen unit 402, where the fast oxygen unit 402 is connected in parallel with the evaporation unit 401 and is used for fast providing oxygen to a subject, and the main control module 100 is used for switching the evaporation unit 401 or the fast oxygen unit 402 to communicate with the gas feeding module 300.

Specifically, the fast oxygen unit 402 may be an oxygen adjusting device, and its function may include adjusting the flow speed or concentration of oxygen, where the fast oxygen unit 402 and the evaporation unit 401 are in parallel connection, and oxygen may flow through the evaporation unit 401 or the fast oxygen unit 402. The rapid oxygen unit 402 is primarily used to rapidly provide oxygen, and after anesthesia of the subject, clean oxygen may be provided to the subject by controlling the flow of oxygen through the rapid oxygen unit 402 to allow the subject to wake up rapidly. In addition, the rapid oxygen unit 402 is also used for rapid oxygen introduction after the anesthesia operation, and residual anesthetic gas and carbon dioxide gas in the machine are exhausted. Of course, in other embodiments, the rapid oxygen unit 402 may also be used to mix with the drug-containing gas output by the vaporization unit 401; for example, when the concentration of the drug provided by the evaporation unit 401 is too high, the rapid oxygen unit 402 can be turned on to enable the gas in the two to be rapidly mixed, so as to reduce the concentration of the drug in a short time and avoid injury to the receptor.

In one embodiment, referring to fig. 1 and 2, the inhalation branch 20A further comprises a first adjusting unit 601 in communication with the administration module 400, the first adjusting unit 601 is used for adjusting the respiratory rate of the subject, and the gas output from the administration module 400 flows into the subject through the first adjusting unit 601.

Specifically, the first adjusting unit 601 may be a device with a pressure adjusting function, and the first adjusting unit 601 is mainly used for controlling the respiratory rate of the patient, so that the patient can inhale the air containing the medicine into the alveoli through a self-breathing manner, thereby achieving the anesthetic effect. The first adjusting unit 601 can be matched with the pressurizing unit 302 to send the medicine-containing gas; when the air supply unit is connected with an oxygen bottle or other oxygen source, the first adjusting unit 601 may also be a manual air bag, and the user may manually control the respiratory rate.

Further, the anesthesia machine may further include a function of medicine circulation, and the first adjusting unit 601 may further control the anesthesia machine to switch between medicine circulation and non-circulation. When the recipient is a small animal, the dosage of the drug used in the anesthesia process is small, which can be understood that the operability of recycling the drug is not high, and the first adjusting unit 601 can control the gas exhaled by the recipient to be directly discharged out of the anesthesia machine. When the receptor is an animal with a relatively large size, the expired air contains a relatively large amount of the remaining drug, and at this time, the first adjusting unit 601 can control the expired air from the receptor to return to the anesthesia machine, and collect the drug in the expired air, so as to realize the recovery of the drug.

In one embodiment, referring to fig. 1 and 2, the administration module 400 further includes a second adjusting unit 403, where the second adjusting unit 403 is used to switch the evaporation unit 401 or the rapid oxygen unit 402 to communicate with the air administration module 300.

Further, the second adjusting unit 403 may be a two-position three-way valve, and the second adjusting unit 403 may be connected to the humidifying unit 304, the evaporating unit 401 and the fast-oxygen unit 402, respectively, and the second adjusting unit 403 may control the oxygen flowing out of the humidifying unit 304 to be delivered to the evaporating unit 401 and/or the fast-oxygen unit 402. Preferably, the second adjusting unit 403 may be electrically connected to the main control module 100, and a user may control the connection condition of the second adjusting unit 403 by giving an adjusting instruction to the main control module 100; the adjustment instruction may be a real-time instruction, that is, the user may determine that the interface of the second adjustment unit 403 is switched by himself, or may be a time-sharing instruction, where the user may set the on/off or switching of the second adjustment unit 403 indirectly by setting the oxygen concentration, the drug concentration or the anesthesia time.

In one embodiment, referring to fig. 1 and 2, the expiratory limb 20B further includes a breath holding unit 701, where the breath holding unit 701 is configured to raise the air resistance of the expiratory limb 20B and maintain the positive expiratory pressure of the subject.

Specifically, the breath holding unit 701 may include a Positive End Expiratory Pressure (PEEP) valve, which is connected to the expiratory unit 503, and may be used to keep a certain positive pressure in the respiratory tract at the end of the expiration of the patient, to avoid the complete closure of the alveoli of the patient, or to make the alveoli of the patient expand more uniformly, so as to achieve the purpose of providing oxygen uniformly, thereby obtaining a better anesthetic effect. The expiration holding unit may also increase the air resistance of the subject's expiration gas so that the expiration gas may flow to the first filtering unit 501 for the purpose of drug reuse.

In this embodiment, referring to fig. 2 and 4, the exhalation module further includes a third filter unit 702, the third filter unit 702 may be connected to the rear of the breath holding unit 701, and the main component of the third filter unit 702 may be activated carbon for absorbing the medicine in the exhaust gas so as to prevent the medicine from leaking into the environment and causing pollution.

In the description of the embodiments of the present application, it should be noted that, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to the orientation or positional relationship described based on the drawings, which are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.

The above disclosure is only a preferred embodiment of the present application, and it should be understood that the scope of the claims is not limited thereto, and those skilled in the art can appreciate that all or part of the procedures for implementing the above embodiments are included in the scope of the present application as defined by the claims.

Claims (12)

1. An anesthesia machine is characterized by comprising a shell, a breathing passage, an air supply module, an administration module, a main control module and a detection module; the breathing passage, the air supply module, the medicine supply module, the main control module and the detection module are all arranged in the shell; the respiratory passage comprises an inhalation branch and an exhalation branch; the air supply module and the drug delivery module are sequentially communicated to the air suction branch, the air supply module provides oxygen with specific concentration for a receptor, and the drug delivery module provides drugs for the receptor;

the detection module is arranged on the air suction branch circuit to detect the oxygen concentration of the air suction branch circuit; the main control module is respectively and electrically connected with the air supply module and the detection module and is used for receiving the oxygen concentration of the air suction branch and adjusting the parameters for providing oxygen for the air supply module according to the oxygen concentration of the air suction branch.

2. The anesthesia machine of claim 1 wherein the detection module is further configured to detect a drug concentration of the inspiratory limb; the main control module is also electrically connected with the drug delivery module, so as to adjust the parameters of the drug delivery module for providing the drugs according to the drug concentration of the air suction branch.

3. The anesthesia machine of claim 1 wherein the breathing circuit further comprises a first port, a second port and a third port through the housing, the first port and the third port in communication with ambient air, the second port for communication with a subject; the first port and the second port are respectively connected to two ends of the inspiration branch, and the second port is also connected with one end of the expiration branch; the third port is connected with the other end of the expiration branch.

4. The anesthesia machine of claim 1 wherein the breathing circuit further comprises a return branch, the return branch having two ends in communication with the inhalation branch and the exhalation branch, respectively, for returning the exhaled gases of the subject to the inhalation branch.

5. The anesthesia machine of claim 4 wherein the return branch further comprises a first filter unit to filter the expired gases and return the filtered expired gases to the inspiratory branch.

6. The anesthesia machine of claim 1 wherein the air supply module comprises a pressurizing unit and an oxygen generating unit which are communicated, the main control module controls the pressurizing unit to pressurize air, and the main control module also controls the oxygen generating unit to extract oxygen with specific concentration from the pressurized air.

7. The anesthesia machine of claim 6 wherein the air supply module further comprises a second filter unit in communication with the pressurizing unit, the second filter unit for filtering air and delivering the filtered air to the pressurizing unit.

8. The anesthesia machine of claim 6 wherein the air supply module further comprises a humidification unit in communication with the oxygen generation unit, the main control module further controlling the humidification unit to humidify oxygen output from the oxygen generation unit.

9. The anesthesia machine of claim 6 wherein the administration module includes an evaporation unit in communication with the oxygen generation unit such that oxygen provided by the administration module flows through the evaporation unit for mixing the medication with the oxygen flowing through the evaporation unit.

10. The anesthesia machine of claim 9 wherein the administration module further comprises a rapid oxygen unit connected in parallel with the evaporation unit for rapidly providing oxygen to the recipient, the master control module for switching the evaporation unit or the rapid oxygen unit to communicate with the administration module.

11. The anesthesia machine of claim 1 wherein the suction branch further comprises a second regulating unit in communication with the administration module, the second regulating unit being configured to regulate the respiratory rate of the subject, the gas output by the administration module flowing into the subject via the second regulating unit.

12. The anesthesia machine of claim 1 wherein the expiratory limb further comprises a breath holding unit for increasing the air resistance of the expiratory limb to maintain the positive expiratory pressure of the subject.

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