Patent Description:
An anesthesia machine has the functions of inhalation anesthesia and mechanical ventilation for a patient during a surgery. The patient is assisted by an anesthesia ventilator to maintain airway patency, improve ventilation and oxygenation, and prevent body hypoxia and the accumulation of carbon dioxide.

However, in order to ensure the normal operation of the components inside the anesthesia machine, a fan is usually used for forced heat dissipation, which generates noise during the operation of the fan, and causes an adverse effect on an operating room environment. Patent applications <CIT> and <CIT> provide teachings related to the technical field of the application.

The disclosure provides an anesthesia machine, which is capable of preventing heat generated by a main control board from affecting other components inside a host case, and also ensures that the main control board has a sufficient heat dissipation space, so as to prolong the service life of the main control board and other components inside the anesthesia machine.

The disclosure provides an anesthesia machine, including a gas source interface, an anesthesia ventilation circuit, an anesthetic evaporator, a host case, a main control board, a display apparatus and a power supply interface;.

In the anesthesia machine of the disclosure, the gas source interface and the power supply interface are separately arranged.

In the anesthesia machine of the disclosure, a control panel is arranged on a front side of the host case for a user to adjust parameter information of the anesthesia ventilation circuit and/or display control parameters of the anesthesia ventilation circuit.

In the anesthesia machine of the disclosure, the anesthetic evaporator is arranged on a left side or a right side of the control panel, and the gas source interface and the power supply interface are arranged on a back side of the host case.

The anesthesia machine of the disclosure further includes:
a control board configured to control power supply among various components on the anesthesia machine, where the control board is arranged inside the host case.

In the anesthesia machine of the disclosure, the control board is arranged on a back side of the host case, and the control board is arranged below the power supply interface.

The anesthesia machine of the disclosure further includes:
a power supply apparatus arranged on a bottom of an inner side of the host case or on a base below the host case, the power supply apparatus being arranged separately from the control board and the control panel.

In the anesthesia machine of the disclosure, the control panel is arranged on the main control case.

In the anesthesia machine of the disclosure, the gas source interface is arranged on the main rack case, and/or the power supply interface is arranged on the main control case.

In the anesthesia machine of the disclosure, an upper surface of the main rack case forms a worktable top, and the anesthetic evaporator is detachably placed on the worktable top.

In the anesthesia machine of the disclosure, the power supply interface includes:.

In the anesthesia machine of the disclosure, the control board is arranged on a back side of the main control case, and the auxiliary output interface and the power input interface are both arranged above the control board.

In the anesthesia machine of the disclosure, the control board is arranged in the main rack case; or the control board is arranged in the main control case.

The anesthesia machine of the disclosure further includes:
an AGSS module arranged on a side of the host case, the AGSS module being in communication with the anesthesia ventilation circuit.

The anesthesia machine of the disclosure further includes:
a plug-in module interface arranged on the host case.

In the anesthesia machine of the disclosure, the plug-in module interface and the AGSS module are located on the same side.

In the anesthesia machine of the disclosure, the anesthesia ventilation circuit includes a breathing circuit, a driving gas branch and a fresh gas branch, where the fresh gas branch is arranged on the inner side of the host case, and the driving gas branch and the breathing circuit are arranged on an outer side of the host case.

In the anesthesia machine of the disclosure, the anesthesia ventilation circuit further includes:
a pressure detection assembly configured to detect a gas pressure of the anesthesia ventilation circuit, where the pressure detection assembly, the control panel and the control board are separately arranged on the host case.

In the anesthesia machine of the disclosure, the pressure detection assembly is arranged in the main control case, or the pressure detection assembly is arranged at a position of the main rack case on the worktable top.

In the anesthesia machine of the disclosure, a heat dissipation structure is arranged on the display shell, and the heat dissipation structure corresponds to the main control board in position.

In the anesthesia machine of the disclosure, the heat dissipation structure includes a heat conducting pad, one end of the heat conducting pad abutting against the main control board, and the other end of the heat conducting pad abutting against the display shell.

The technical solutions provided in the embodiments of the disclosure may have the following beneficial effects: the disclosure designs an anesthesia machine, since the main control board is arranged on the display shell, the heat generated by the main control board is prevented from affecting other components inside the host case, especially some components which operate only at a lower temperature, thereby providing a safe operating temperature for each component, ensuring that each component in the anesthesia machine is capable of operating normally within a specified temperature range thereof, and then ensuring the use safety and service life of the anesthesia machine.

It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the disclosure.

In order to more clearly describe the technical solutions in the embodiments of the disclosure, the drawings required for describing the embodiments will be briefly described below. Apparently, the drawings in the following description show some of the embodiments of the disclosure, and persons of ordinary skill in the art may still derive other drawings from these drawings without creative efforts.

Host case; <NUM>. Main rack case; <NUM>. Worktable top; <NUM>. Base; <NUM>. Main control case; <NUM>. Display apparatus; <NUM>. Display device; <NUM>. Display shell; <NUM>. Anesthetic evaporator; <NUM>. Control panel; <NUM>. Breathing circuit; <NUM>. Carbon dioxide absorption tank; <NUM>. Main control board; <NUM>. Control board; <NUM>. Power supply interface; <NUM>. Auxiliary output interface; <NUM>. Power input interface; <NUM>. Gas source interface; <NUM>. Pressure detection assembly; <NUM>. AGSS module; <NUM>. Plug-in module interface; <NUM>. Power supply apparatus.

The technical solutions of the embodiments of the disclosure will be described below clearly and comprehensively in conjunction with accompanying drawings of the embodiments of the disclosure. Apparently, the embodiments described are some of, rather than all of, the embodiments of the disclosure. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the disclosure without creative efforts shall fall within the scope of protection of the disclosure.

In the description of the disclosure, it should be understood that the orientation or position relationship indicated by the terms "centre", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings and are intended to facilitate the description of the disclosure and simplify the description only, rather than indicating or implying that the apparatus or element referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the disclosure. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the disclosure, the meaning of "a plurality of" is two or more, unless specifically and specifically limited otherwise.

Some embodiments of the disclosure will be described in detail below with reference to the drawings. In the case of no conflict, the embodiments and the features thereof described below may be combined with each other.

The anesthesia machine of the disclosure belongs to the technical field of medical devices. An anesthesia machine is one of the most commonly used devices in an operating room and is a medical device mainly for adjusting a consciousness level and a pain level of a patient during a surgery.

In general, the anesthesia machine includes a gas supply part, a control part, an anesthesia ventilation circuit part, a waste gas discharging part, an anesthetic evaporator, and so on, where the control part includes a control panel, a power input module, an auxiliary output module, a gas pressure detection module, an anesthetic evaporator control module, a plug-in module, an AGSS module and a display module, and so on; and these electronic modules may generate heat during the operation of the anesthesia machine, and when the heat is accumulated too much, it is likely to cause failures of electronic or gas circuit components, and even cause risks of fire, etc..

At present, the anesthesia machine is generally provided with a heat dissipation hole and a cooling fan at a position where heat accumulates, so as to forcibly blow out the heat inside the anesthesia machine and introduce cold air, enabling each component in the anesthesia machine to work normally within a specified temperature range thereof. However, the cooling fan not only has an ineffective gap, but also easily generates noise during operation, which causes an adverse effect on an operating room environment.

As shown in <FIG>, the disclosure provides an anesthesia machine, including a host case <NUM>, a display apparatus <NUM>, an anesthetic evaporator <NUM>, an anesthesia ventilation circuit, a main control board <NUM>, a power supply interface <NUM> and a gas source interface <NUM>, where the gas source interface <NUM> and the power supply interface <NUM> are both arranged on the host case <NUM>, the anesthetic evaporator <NUM> is detachably connected to the host case <NUM>, the gas source interface <NUM> is connected to the anesthesia ventilation circuit, and at least part of the anesthesia ventilation circuit is arranged in the host case <NUM>. In this embodiment, the display apparatus <NUM> includes a display device <NUM> and a display shell <NUM> for fixing the display device <NUM>, the main control board <NUM> is arranged on the display shell <NUM>, and the main control board <NUM> is electrically connected to the power supply interface <NUM> and the display device <NUM>.

After the above technical solution is used, during the operation of the anesthesia machine, the amounts of heat generated by components inside the anesthesia machine are different. For example, the main control board <NUM> is a component with a large amount of heat itself, while a control valve on the anesthesia ventilation circuit is a component with a small amount of heat or no heat; when the components such as the main control board <NUM> and the anesthesia ventilation circuit are integrated in the host case <NUM>, interference will occur between the components such as the main control board <NUM> and the anesthesia ventilation circuit, and the component releasing a large amount of heat will affect the component with a small amount of heat or no heat, thereby shortening the service life of the component with a small amount of heat or no heat. Also, arranging the main control board <NUM> with a large amount of heat on the display shell <NUM> in the disclosure may not only prevent the heat generated by the main control board <NUM> during operation from affecting the operation of each component in the host case <NUM>, but also ensure that each component in the host case <NUM> is capable of operating at a safe operating temperature; furthermore, heat dissipation of the main control board <NUM> is facilitated, a sufficient heat dissipation space is provided for the main control board <NUM> to ensure that the main control board <NUM> is capable of dissipating heat to the surroundings by means of the display shell <NUM>.

In an optional embodiment, the main control board <NUM> may be arranged on an inner side of the display shell <NUM>, and the main control board <NUM> may also be arranged on an outer side of the display shell <NUM>. When the main control board <NUM> is arranged on the outer side of the display shell <NUM>, the main control board <NUM> may be installed in a box and then the box is fixed to the outer side of the display shell <NUM>, and the shape and size of the box may match the shape and size of the display shell <NUM> to ensure a structural shape of the exterior of the anesthesia machine. Meanwhile, a groove for placing the main control board <NUM> may also be provided on the outer side of the display shell <NUM>, and is then covered with a corresponding cover to protect the main control board <NUM>, etc. This arrangement is mainly intended to arrange the main control board <NUM> on the display shell <NUM>, but a fixation method therefor is not limited in the disclosure.

In an optional embodiment, a heat dissipation structure is arranged on the anesthesia machine, the heat dissipation structure is installed on the display shell <NUM>, and the heat dissipation structure corresponds to the main control board <NUM> in position, such that the heat generated by the main control board <NUM> during operation can be rapidly diffused into the air by means of the heat dissipation structure, achieving a cooling effect.

Specifically, the heat dissipation structure may include an air intake hole and an air outlet hole formed in the display shell <NUM>, where the air intake hole and the air outlet hole are in communication to form a cooling air channel, and the cooling air channel runs through an outer surface of the main control board <NUM>; when the anesthesia machine operates, the heat generated by the main control board <NUM> due to the operation can be released into the air by means of an air flow in the cooling air channel, ensuring that the main control board <NUM> can operate at a specified temperature, and prolonging the service life of the main control board <NUM>.

In order to improve the temperature reduction and cooling efficiency of the display shell <NUM>, the display shell <NUM> may also be provided with a miniature cooling fan, and the cooling fan can accelerate the discharge of a hot air in the display shell <NUM> without increasing the noise of the anesthesia machine, nor causing an adverse effect on an operating room environment.

In addition, the heat dissipation structure may further include a heat sink, where the heat sink is closely adhered to the main control board <NUM>, maximally increasing the heat dissipation area of the main control board <NUM>, so that electronic elements on the main control board <NUM> sufficiently dissipate heat. The heat sink may be a heat dissipation fin made of an aluminum alloy material, and the size and shape thereof may be the size and shape of the main control board <NUM>, such that the heat dissipation effect of the heat dissipation structure can be effectively increased.

In an optional embodiment, the heat dissipation structure includes a heat conducting pad, where one end of the heat conducting pad abuts against the main control board <NUM>, and the other end of the heat conducting pad abuts against the display shell <NUM>, such that the heat generated during the operation of the main control board <NUM> can be transferred to the display shell <NUM> by means of the heat conducting pad, and then diffused into the air by means of the display shell <NUM>; alternatively, the inner side of the display shell <NUM> is provided with a metal frame, and the heat conducting pad is connected to the metal frame and diffuses the heat generated during the operation of the main control board <NUM> into the air by means of the metal frame, etc..

After the above technical solution is used, since the heat dissipation structure is arranged on the display shell <NUM>, the heat dissipation structure can diffuse the heat generated during the operation of the main control board <NUM> into the air, and can discharge the heat inside the display shell <NUM> to the outside air, such that the heat dissipation effect of the main control board <NUM> is more obvious, ensuring that the main control board <NUM> can operate at the specified temperature thereof, and prolonging the service life of the main control board <NUM>.

In an optional embodiment, the gas source interface <NUM> and the power supply interface <NUM> are arranged separately to achieve gas-electricity separation, which can effectively and completely eradicate the contact between the anesthesia ventilation circuit and various components and/or cables, and avoid the occurrence of relevant safety accidents, so that the safety factor of the host case <NUM> is higher, and the safety in use is ensured. Meanwhile, it also facilitates the arrangement of pipelines on the anesthesia ventilation circuit and the cables connected among the various components in the host case <NUM>. For example, since the gas source interface <NUM> and the power supply interface <NUM> are respectively arranged on two sides of the host case <NUM>, the pipelines on the anesthesia ventilation circuit may be arranged along one side of the host case <NUM>, and the cables connected among the various components in the host case <NUM> may be arranged along the other side of the host case <NUM>, avoiding the problem of entanglement of the cables and the pipelines crossing each other, which not only facilitates the orderly arrangement of the pipelines and the cables inside the host case <NUM>, but also avoids the influence of the heat generated by the cables during power supply on the pipelines, preventing the service life of the pipelines from being shortened. The embodiment has the characteristics of reasonable layout, convenient installation, quick maintenance, cost saving, etc..

In an embodiment not being part of the invention, the display apparatus <NUM> may be directly arranged on a front side of the host case <NUM>. In an embodiment, the display apparatus <NUM> is installed at an upper end of the host case <NUM> by means of a display supporting frame. In this embodiment, the display apparatus <NUM> is installed at the upper end of the host case <NUM> by means of the display supporting frame, and the main control board <NUM> is arranged on the side of the display shell <NUM> opposite to the display device <NUM>, such that heat generated during the operation of the main control board <NUM> can be rapidly diffused into the air by means of the display shell <NUM> to play a cooling effect.

In an optional embodiment, the front side of the host case <NUM> is provided with a control panel <NUM>, and the control panel <NUM> is used for a user to adjust parameter information of the anesthesia ventilation circuit and/or to display control parameters of the anesthesia ventilation circuit.

Specifically, the control panel <NUM> includes one or more of a flow adjustment knob, a concentration adjustment knob and a touch screen, where a gas flow parameter in the anesthesia ventilation circuit may be adjusted by means of the flow adjustment knob, a gas concentration parameter and/or an anesthetic concentration parameter in the anesthesia ventilation circuit may be adjusted by means of the concentration adjustment knob, and the gas flow parameter, the gas concentration parameter and the anesthetic concentration parameter adjusted by means of the flow adjustment knob and/or the concentration adjustment knob may be displayed by the touch screen. Furthermore, the touch screen may also adjust one or more of ventilation and anesthesia control parameters, such as gas flow, gas concentration, and anesthetic concentration, and device control parameters; and the control panel <NUM> may also include a switching apparatus of the device for turning on or off the device.

In an optional embodiment, the anesthetic evaporator <NUM> is arranged on a left side or a right side of the control panel <NUM>, and the gas source interface <NUM> and the power supply interface <NUM> are arranged on a back side of the host case <NUM>, thereby avoiding mutual interference among the anesthetic evaporator <NUM>, the control panel <NUM>, the gas source interface <NUM> and the power supply interface <NUM>, and effectively controlling the anesthetic evaporator <NUM>, the control panel <NUM> and the power supply interface <NUM> to have a sufficient heat dissipation space, so that the space on the anesthesia machine can be effectively used, and thus the anesthetic evaporator <NUM>, the control panel <NUM> and the power supply interface <NUM> can be distributed to various regions of the anesthesia machine for heat dissipation.

Specifically, the right side of the control panel <NUM> is provided with an open installation cavity, the open installation cavity is provided with a locking seat sliding rail and a gas circuit interface connected to the anesthesia ventilation circuit, and after the anesthetic evaporator <NUM> is installed in the open installation cavity by means of the locking seat sliding rail, the anesthetic evaporator <NUM> is in communication with the anesthesia ventilation circuit by means of the gas circuit interface, so that when a patient breathes by means of a ventilator connected in the anesthesia ventilation circuit, the anesthetic evaporator <NUM> generates anesthetic vapor to anesthetize the patient.

In an optional embodiment, the anesthesia machine further includes a control board <NUM>, the control board <NUM> being configured to control power supply between components on the anesthesia machine, where the control board <NUM> is arranged inside the host case <NUM>.

Specifically, the control board <NUM> is electrically connected to the power supply interface <NUM> to supply power for controlling the various components in the anesthesia machine; the control board <NUM> may be arranged on a left side of an interior of the host case <NUM>, or the control board <NUM> may also be arranged on a right side of the interior of the host case <NUM>, or the control board <NUM> may also be arranged on a rear side of the interior of the host case <NUM>, or even the control board <NUM> may also be arranged on a front side of the interior of the host case <NUM>, and may be fixed to any one side of the host case <NUM> in a fixed manner, or fixed in the middle of the host case <NUM> by means of a supporting frame, which is not limited in the disclosure.

In an optional embodiment, the control board <NUM> is arranged on the back side of the host case <NUM>, and the control board <NUM> is arranged below the power supply interface <NUM>, thereby facilitating the arrangement of the cables between the power supply interface <NUM> and the control board <NUM>, also preventing the control board <NUM>, the control panel <NUM> and the power supply interface <NUM> from interfering with one another due to different amounts of heat during operation, ensuring the stability of the operation of the control board <NUM>, the control panel <NUM> and the power supply interface <NUM>, and prolonging the service life of the control board <NUM>, the control panel <NUM> and the power supply interface <NUM>.

In an optional embodiment, the anesthesia machine further includes a power supply apparatus <NUM>, the power supply apparatus <NUM> being arranged on a bottom of an inner side of the host case <NUM> or on a base <NUM> below the host case <NUM>, where the power supply apparatus <NUM> is arranged separately from the control board <NUM> and the control panel <NUM> to reduce interference with the control board <NUM> and the control panel <NUM> by the power supply apparatus <NUM>, thereby reducing the influence on the service life of the control board <NUM> and the control panel <NUM>.

In this embodiment, the power supply apparatus <NUM> is a disposable or rechargeable power storage apparatus. In case of a sudden power failure during the use of an anesthetic, the power supply apparatus <NUM> may supply power to the components inside the anesthesia machine by means of the control board <NUM>, preventing the accidental power failure from causing harm to the patient. The power supply apparatus <NUM> is electrically connected to the power supply interface <NUM> by means of the control board <NUM>, and when the power supply apparatus <NUM> has insufficient power, the power supply interface <NUM> can automatically charge the power supply apparatus <NUM> to ensure that the power supply apparatus <NUM> is always maintained in a fully charged state; when there is no current input on the power supply interface <NUM>, the control board <NUM> controls the power supply apparatus <NUM> to supply power to the components inside the anesthesia machine, thereby preventing the accidental power failure from causing harm to the patient.

In an embodiment, the host case <NUM> includes a main rack case <NUM> and a main control case <NUM>, where a lower end of the main rack case <NUM> is provided with a base <NUM>, and universal wheels are installed on the base <NUM> to facilitate the movement of the host case <NUM>, making the anesthesia machine more convenient to use. In this embodiment, the main control case <NUM> is arranged at an upper end of the main rack case <NUM>, the control panel <NUM> is arranged on the main control case <NUM>, the display apparatus <NUM> is arranged at an upper end of the main control case <NUM>, and the power supply apparatus <NUM> is arranged at a bottom end of the main rack case <NUM> or below the base <NUM> so as to achieve the distribution of heat generating components in the anesthesia machine and also ensure the heat dissipation effect of the heat generating components. The heat generating components inside the anesthesia machine can not only be distributed scientifically and reasonably in the regions of the anesthesia machine according to heat generating conditions of the heat generating components inside the anesthesia machine, but also facilitate good heat dissipation of the heat generating components inside the anesthesia machine. For example, the power supply apparatus <NUM> is arranged below the base <NUM>, the main control board <NUM> is arranged on the display shell <NUM> at the upper end of the main control case <NUM>, etc..

In an optional embodiment, the gas source interface <NUM> is arranged on the main rack case <NUM>, and/or the power supply interface <NUM> is arranged on the main control case <NUM> to achieve gas-electricity separation and avoid safety accidents caused by gas-electricity cross contact, thus reducing hidden safety hazards. In this embodiment, the gas source interface <NUM> is arranged on the main rack case <NUM>, the control board <NUM> and the power supply interface <NUM> are both arranged on the main control case <NUM>, and the control board <NUM> is located below the power supply interface <NUM>, so that the main rack case <NUM> and the main control case <NUM> can form a gas cavity and a cable cavity that are independent of each other, which not only facilitates the arrangement of cables and pipelines inside the anesthesia machine, but also facilitates the installation and maintenance of the anesthesia machine, saving time and manpower.

In an optional embodiment, an upper surface of the main rack case <NUM> connected to the main control case <NUM> forms a worktable top <NUM>, where the anesthetic evaporator <NUM> is detachably placed on the worktable top <NUM>, and the worktable top is configured to place medical instruments commonly used during a surgery and notes to be recorded by medical personnel in work. In this embodiment, the anesthetic evaporator <NUM> is detachably placed in the open installation cavity on the right side of the control panel <NUM>, a layered storage cabinet is arranged on the main rack case <NUM>, and the layered storage cabinet is arranged at an upper end of the base <NUM> to facilitate the storage of surgical supplies and provide assistance for surgery; and the structural design is relatively reasonable, not only facilitating the taking and placement of the anesthetic evaporator <NUM>, but also improving the working efficiency of medical care personnel.

In an optional embodiment, the power supply interface <NUM> includes an auxiliary output interface <NUM> and a power input interface <NUM>, the power input interface <NUM> being arranged on one side of the auxiliary output interface <NUM>, where the auxiliary output interface <NUM> is configured to establish an electrical connection or a communication connection to an auxiliary device, the auxiliary device including an ultrasonic instrument, etc.; and the power input interface <NUM> is configured to convert an alternating voltage into an operating voltage of the anesthesia machine.

Specifically, an AC-DC power module and an auxiliary output module are arranged on the anesthesia machine, and the auxiliary output interface <NUM> is electrically connected to the auxiliary output module, such that the auxiliary device can be electrically connected to the auxiliary output module; and the power input interface <NUM> is electrically connected to the AC-DC power module, and the AC-DC power module is configured to convert a 220V alternating voltage into a 12v direct voltage specially used for the anesthesia machine. In this embodiment, the auxiliary output interface <NUM> is arranged on a left side or a rear side of the power input interface <NUM>, which is mainly aimed to facilitate the arrangement of the cables connected to the auxiliary output interface <NUM> and the power input interface <NUM>, to avoid mutual crossing between the cables and to effectively reduce the loss of use of the cables, and to facilitate maintenance.

In an optional embodiment, the control board <NUM> is arranged on a back side of the main control case <NUM>, and the auxiliary output interface <NUM> and the power input interface <NUM> are both arranged above the control board <NUM>. Specifically, the auxiliary output interface <NUM> is installed on the auxiliary output interface <NUM>, the power input interface <NUM> is installed on the AC-DC power module, namely, the auxiliary output interface <NUM> is installed on the back side of the main control case <NUM> by means of the auxiliary output module, the power input interface <NUM> is installed on the back side of the main control case <NUM> by means of the AC-DC power module, and the control board <NUM> is arranged below the auxiliary output module and the AC-DC power module, which not only ensures the heat dissipation space of the control board <NUM>, the auxiliary output module and the AC-DC power module, but also facilitates the arrangement of the cables among the control board <NUM>, the auxiliary output module and the AC-DC power module, thus avoiding the crossing problem of the cables and solving the problem of mutual interference of the cables.

In an optional embodiment, the control board <NUM> is arranged in the main rack case <NUM>; or, the control board <NUM> is arranged in the main control case <NUM>, so that the control board <NUM> having a sufficient heat dissipation space can be ensured, and the control board can also be protected to prevent liquid of the host case <NUM> and so on from damaging the control board <NUM>. In addition, in order to better improve the heat dissipation effect of the control board <NUM>, vent holes may also be formed in the main rack case <NUM> and/or the main control case <NUM>, and the components on the control board <NUM> may be cooled down to protect the control board <NUM>.

In an optional embodiment, the anesthesia machine further includes an AGSS module <NUM>, the AGSS module <NUM> being arranged on a side of the host case <NUM>, and the AGSS module <NUM> being in communication with the anesthesia ventilation circuit, where the AGSS module <NUM> refers to an anesthetic gas purification system, and is intended to prevent the contamination of a waste anesthetic gas in the anesthesia machine, avoiding that the waste anesthetic gas causes air contamination in the operating room and thus affects the health of medical personnel.

In an optional embodiment, the anesthesia machine further includes a plug-in module interface <NUM>, the plug-in module interface <NUM> being arranged on the host case <NUM> and being configured to be connected to a plug-in box module of the anesthesia machine, and the plug-in box module including a heart rate monitor and an electrocardiograph monitor, and so on, which may be specifically selected according to user requirements. In this embodiment, the plug-in box module is connected to the main control board <NUM> by means of the plug-in module interface <NUM> and forwards data obtained thereby to the main control board <NUM>, and the main control board <NUM> processes the received monitoring data and displays same by the display device <NUM>. The plug-in module interface <NUM> is arranged on the left side or the right side of the host case <NUM> to facilitate the fixing and maintenance of the plug-in box module and also facilitate the addition or replacement of the plug-in box module.

In an optional embodiment, the plug-in module interface <NUM> and the AGSS module <NUM> are located on the same side, and the plug-in module interface <NUM> is arranged at an upper end of the AGSS module <NUM>, avoiding that the plug-in box module cannot be installed on the anesthesia machine due to a limited space, and also ensuring the neatness of the appearance of the anesthesia machine. In this embodiment, the anesthetic evaporator <NUM> is placed on the worktable top <NUM> at the right side of the control panel <NUM>, and the plug-in module interface <NUM> and the AGSS module <NUM> are arranged on the main rack case <NUM> at the left side of the worktable top <NUM>, so that the plug-in module interface <NUM>, the AGSS module <NUM> and the anesthetic evaporator <NUM> can be reasonably and effectively arranged, the balance of an anesthesia machine cart can also be ensured, and the movement of the anesthesia machine cart by the medical personnel with handles at two sides of the worktable top <NUM> is facilitated.

In an optional embodiment, the anesthesia ventilation circuit includes a breathing circuit <NUM>, a driving gas branch providing a driving gas, a fresh gas branch providing a fresh gas, and a bellows-free gas exchanger isolating the driving gas from a breathing circuit gas. In general, the breathing circuit <NUM> is provided with a carbon dioxide absorption tank <NUM>, and the driving gas branch and the fresh gas branch are both connected to the breathing circuit <NUM>. The carbon dioxide absorption tank <NUM> is mainly used for filtering out the carbon dioxide exhaled by the patient, and then re-enters the patient's body by means of the breathing circuit <NUM> together with the fresh gas and the anesthetic vapor generated by the anesthetic evaporator <NUM>, where the driving gas can be oxygen or air, and the gas flow parameter, the gas concentration parameter, the anesthetic concentration parameter of the anesthesia ventilation circuit and so on may be controlled by means of the control panel <NUM>.

Specifically, the anesthesia ventilation circuit further includes a pressure detection assembly <NUM>, the pressure detection assembly <NUM> being configured to detect a gas pressure of the anesthesia ventilation circuit. In this embodiment, the pressure detection assembly <NUM>, the control panel <NUM> and the control board <NUM> are separately arranged on the host case <NUM>, so that the problem of not completely separating gas and electricity in the anesthesia machine is solved, and the safety of the anesthesia machine in use is improved.

In this embodiment, a clamping groove is formed in a side wall inside the host case <NUM>, and a pipeline on the fresh gas branch is fixed to the side wall inside the host case <NUM> by means of the clamping groove, where the driving gas branch and the breathing circuit <NUM> are arranged on the outer side of the host case <NUM>.

Specifically, the pressure detection assembly <NUM> is arranged in the main control case <NUM>, or the pressure detection assembly <NUM> is arranged at a position of the main rack case <NUM> on the worktable top, so as to ensure that the pressure detection assembly <NUM> and the pipeline on the fresh gas branch can be arranged separately from the control panel <NUM> and the control board <NUM>, avoiding safety accidents caused by gas-electricity cross contact, and reducing hidden safety hazards.

With the above technical solution, the anesthetic evaporator <NUM>, the main control board <NUM>, the control board <NUM>, the power supply interface <NUM> and the power supply apparatus <NUM> can be effectively distributed in the regions of the anesthesia machine according to the heat generated by each component in the anesthesia machine during operation, thereby avoiding mutual interference of the components, namely, the influence of a component with a large amount of heat on a component with a small amount of heat, and also shortening the service life of the component with a small amount of heat; also, it is also possible to arrange different heat dissipation structures according to the amounts of heat of components to meet the heat dissipation requirements of different components, so that the components can operate at a safe temperature, thereby solving the problem of component failure caused by the heat generated by the components centralized together during the operation of the anesthesia machine, or even avoiding the risk of possible fires.

Furthermore, the disclosure further separates the gas-electricity components inside the anesthesia machine, avoiding the problem that gas circuit components fail due to heat accumulation during the operation of electronic components, also avoiding the safety accidents caused by the gas-electricity cross contact, and reducing the hidden safety hazards. The components inside the anesthesia machine may be distributed in the various regions inside the anesthesia machine according to parameter information of the components; for example, the amount of heat generated by the main control board <NUM> is calculated according to the number of components on the main control board <NUM>, the power of a chip, the working frequency of the chip, the manufacturer information of the chip, the size of a capacitor, the manufacturer information of the capacitor, the size of a resistor, and so on, then the main control board <NUM> is arranged in the display shell <NUM>, so that the heat dissipation effect of the main control board <NUM> is ensured, forced heat dissipation using a cooling fan is prevented from affecting the working environment of the operating room, the power consumption of the anesthesia machine and the risk of the main control board <NUM> failing to dissipate heat due to the failure of the cooling fan, and so on are also reduced, thereby achieving many purposes at one stroke.

In the description of the disclosure, it should be noted that unless otherwise expressly specified and defined, the terms "installation", "connecting" and "connection" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integrated connection. It may be a mechanical connection or an electrical connection. It may be a direct connection or an indirect connection by means of an intermediate medium, and may be an internal communication of two elements or an interaction relationship of the two elements. For persons of ordinary skill in the art, specific meanings of the foregoing terms in the disclosure may be understood according to specific situations.

In this disclosure, unless otherwise expressly specified and defined, the expression of the first feature being "above" or "under" the second feature may include direct contact of the first feature and the second feature, and may also include that the first and second features are not in direct contact but are in contact by means of additional features therebetween. Furthermore, the expression the first feature being "over", "above" and "on top of" the second feature may be the case that the first feature is directly above or obliquely above the second feature, or only means that the level of the first feature is higher than that of the second feature. The expression the first feature being "underneath", "below" and "beneath" the second feature may be the case that the first feature is directly below or obliquely below the second feature, or only means that the level of the first feature is less than that of the second feature.

This description above provides many different embodiments or examples that can be used to implement different structures of the disclosure. In order to simplify the description of the disclosure, the components and arrangements of specific examples are described above. They are, of course, merely examples and are not intended to limit the disclosure. Furthermore, the disclosure may repeat reference numbers and/or reference letters in different examples, such repetition being for purposes of simplicity and clarity and not in itself indicative of a relationship between various embodiments and/or arrangements as discussed. In addition, the disclosure provides examples of various specific processes and materials herein, but those of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

In the description, the explanation with reference to the terms such as "an embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples" means that specific features, structures, materials, or characteristics described in combination with the embodiment(s) or example(s) are included in at least one embodiment or example of the disclosure. In the description, the illustrative expressions of the above-mentioned terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described herein may be combined in a suitable manner in any one or more embodiments or examples.

Claim 1:
An anesthesia machine, wherein the anesthesia machine comprises: a gas source interface (<NUM>), an anesthesia ventilation circuit, an anesthetic evaporator (<NUM>), a host case (<NUM>), a main control board (<NUM>), a display apparatus (<NUM>) and a power supply interface (<NUM>); wherein the host case (<NUM>) comprises a main rack case (<NUM>) and a main control case (<NUM>) arranged above the main rack case (<NUM>);
the gas source interface (<NUM>) and the power supply interface (<NUM>) are arranged on the host case (<NUM>), and the anesthetic evaporator (<NUM>) is detachably connected to the host case (<NUM>);
the anesthesia ventilation circuit connects with the gas source interface (<NUM>), and at least part of the anesthesia ventilation circuit is arranged in the host case (<NUM>);
the display apparatus (<NUM>) includes a display device (<NUM>) and a display shell (<NUM>) for fixing the display device (<NUM>), characterized in that
the display apparatus (<NUM>) is installed at an upper end of the main control case (<NUM>) by means of a display supporting frame; and
the main control board (<NUM>) is arranged on a side of the display shell (<NUM>) opposite to the display device (<NUM>), and the power supply interface (<NUM>) electrically connects with the main control board (<NUM>) and the display device (<NUM>).