Medical ventilation device

Abstract

The invention is suitable for the field of medical equipment, and discloses medical ventilation equipment. The medical ventilation equipment comprises a host and a display, the host comprises a first shell, a gas circuit assembly and an electric control assembly, and a first ventilation opening and a first air guide opening are formed in the first shell; the display comprises a second shell and a display screen, one side of the second shell is connected to the first shell, the display screen is arranged on the side, back to the first shell, of the second shell, a second ventilation opening and a second air guide opening are formed in the second shell, and the second air guide opening and the first air guide opening are opposite and communicated with each other; one of the first ventilation opening and the second ventilation opening is an air inlet, and the other is an air outlet; one of the host and the display is also provided with a first cooling fan, and the first cooling fan is used for driving air to enter the medical ventilation equipment from the air inlet, and the air is exhausted out of the medical ventilation equipment from the air outlet after passing through the second air guide port and the first air guide port which are communicated with each other. The heat dissipation structure of the display and the host is optimized.

Description

Technical Field

[0001] The present invention relates to the field of medical equipment, and in particular to a medical ventilation device. Background Art

[0002] Medical ventilation equipment, such as a ventilator, is a medical device used to assist patients with breathing difficulties or who cannot breathe independently to complete the breathing process. A ventilator provided in the related art includes a display, a host and a trolley, the host is installed on the trolley, and the display is installed on the host. Both the display and the host are provided with a heat dissipation structure for heat dissipation.

[0003] Among them, considering the thickness of the display, the heat dissipation structure of the display is generally to dissipate heat by designing heat dissipation holes on the display, but no heat dissipation fan is designed for the display. This will result in poor heat dissipation effect of the display, causing the display to heat up more seriously during operation, especially for large-size displays, which seriously affects the service life and working stability of the display.

[0004] The heat dissipation structure of the host is generally to design an air inlet and an air outlet on the shell of the host, and to design a cooling fan at the air outlet. Since the host has many internal components and needs to take into account the direction of the expiratory airway and the design of the heat dissipation structure, the spatial layout of the host is not compact enough and the components are scattered, resulting in a large size of the host. Since the ventilator often needs to be transported within or outside the hospital, the use of a large host and a large display will be detrimental to the transportation of the ventilator, thereby causing more trouble to the treatment of patients. In addition, since there are many components inside the host, the use of a single cooling fan can easily lead to poor heat dissipation in some components and local areas of the host. Summary of the invention

[0005] The first object of the present invention is to provide a medical ventilation device, which aims to solve the technical problem of unreasonable design of heat dissipation structure of medical ventilation equipment in the related art.

[0006] To achieve the above object, the present invention provides a solution: a medical ventilation device, comprising:

[0007] A host, the host comprising a first shell, an air circuit assembly and an electric control assembly, the air circuit assembly and the electric control assembly are at least partially installed in the first shell, and the first shell is formed with a first vent and a first air guide;

[0008] A display, the display comprising a second shell and a display screen, one side of the second shell being connected to the first shell, the display screen being arranged on a side of the second shell facing away from the first shell, the second shell being formed with a second vent and a second air guide, the second air guide being opposite to the first air guide and being in conduction with each other;

[0009] One of the first vent and the second vent is an air inlet, and the other is an air outlet;

[0010] One of the host and the display is also provided with a first cooling fan, which is used to drive air into the medical ventilation device from the air inlet, and then be discharged out of the medical ventilation device from the air outlet after passing through the second air guide port and the first air guide port that are connected to each other.

[0011] As an embodiment, the first vent is the air outlet, and the first cooling fan is installed on the first housing to drive the air in the first housing to be discharged from the air outlet;

[0012] The second ventilation port is an air inlet, and the air in the second shell is guided into the first shell through the second air guide port and the first air guide port that are connected to each other.

[0013] As an embodiment, the first vent is the air inlet, and the air in the first shell is guided into the second shell through the first air guide port and the second air guide port that are connected to each other;

[0014] The second ventilation opening is the air outlet, and the first heat dissipation fan is installed on the second shell to drive the air in the second shell to be discharged from the air outlet.

[0015] As an embodiment, the first vent is the air inlet, the first cooling fan is installed on the first housing to drive air from the air inlet into the first housing, and the air in the first housing is guided into the second housing through the first air guide port and the second air guide port that are connected to each other;

[0016] The second ventilation opening is the air outlet.

[0017] As an embodiment, the host further includes a second cooling fan, which is disposed in the first shell and located above the air path component and the electronic control component, and is used to drive the air in the first shell to flow downward.

[0018] As an implementation manner, the first heat dissipation fan is arranged beside the air path assembly along the horizontal direction.

[0019] As an implementation manner, the first vent is provided on a side of the first housing facing away from the display;

[0020] The first heat dissipation fan is disposed at the first vent, and the first heat dissipation fan is located inside the first shell or outside the first shell.

[0021] As an implementation mode, the electronic control component includes an AC-DC converter and a power supply circuit board, and the AC-DC converter and the power supply circuit board are respectively arranged on different sides of the gas circuit component.

[0022] As an implementation manner, the power circuit board is arranged above the gas circuit assembly, and the AC-DC converter is arranged on one side of the gas circuit assembly along the horizontal direction.

[0023] As an implementation manner, the electronic control component further includes a monitoring circuit board, and the monitoring circuit board is arranged above the gas circuit component and below the power supply circuit board.

[0024] As an embodiment, the host further includes a first partition, which is arranged between the AC-DC converter and the gas circuit component to separate the AC-DC converter and the gas circuit component; and / or,

[0025] The AC-to-DC converter and the first vent are respectively arranged on two adjacent sides of the air path component.

[0026] As an implementation manner, the electronic control component further includes an energy capacitor, and the energy capacitor and the AC-DC converter are respectively arranged on two opposite sides of the gas circuit component in a horizontal direction.

[0027] As an embodiment, the host further includes a second partition, which is disposed between the energy capacitor and the gas circuit component to separate the energy capacitor and the gas circuit component.

[0028] As an implementation mode, the electric control component further comprises a pressure circuit board, and the pressure circuit board is used to monitor the gas pressure output by the gas circuit component;

[0029] The pressure circuit board is arranged on a side of the gas circuit component facing the display.

[0030] As an implementation mode, a pressure sensor and a memory are provided on the pressure circuit board, the pressure sensor is used to monitor the pressure signal of the gas output by the gas circuit component, and the memory is used to store the corresponding relationship between the pressure signal and the pressure value.

[0031] As an implementation manner, the second ventilation opening and the second air guide opening are both arranged on a side of the second shell facing away from the display screen.

[0032] As an implementation mode, the horizontal dimension of the host is smaller than the horizontal dimension of the display;

[0033] The lateral direction of the display is perpendicular to the height direction of the display and perpendicular to the thickness direction of the display, and the lateral direction of the host is parallel to the lateral direction of the display.

[0034] As an implementation manner, the horizontal size of the host is less than or equal to two-thirds of the horizontal size of the display.

[0035] As an embodiment, the side of the second shell facing away from the display screen has a first area and a second area, the first area is superimposed on the first shell, and the second area is exposed to the air;

[0036] The second air guide port is provided in the first area;

[0037] The second vent is disposed in the second area.

[0038] As an embodiment, the medical ventilation device further comprises an inhalation interface, which is provided on the first housing and communicated with the gas circuit assembly, so as to supply the gas output by the gas circuit assembly to the patient;

[0039] The first shell is also formed with an air inlet, and the air inlet is used to allow external air to enter the air circuit assembly;

[0040] The gas circuit assembly includes a pressurizing component, an oxygen input component and a gas pipeline assembly, wherein the pressurizing component is used to suck outside air from the air inlet into the air inlet, pressurize the air and deliver the air to the gas pipeline assembly;

[0041] The oxygen input assembly is used to deliver oxygen supplied by the oxygen supply device to the gas delivery pipeline assembly;

[0042] The air delivery pipeline assembly is used to deliver the air delivered by the pressurizing component and the oxygen delivered by the oxygen input assembly to the inhalation interface;

[0043] The gas pipeline assembly and the oxygen input assembly are arranged in the transverse direction of the main machine;

[0044] The pressurizing component is arranged above the gas delivery pipeline assembly.

[0045] As an embodiment, the first vent and the supercharging component are arranged opposite to each other in a horizontal direction, and the first cooling fan is arranged between the first vent and the supercharging component in a horizontal direction.

[0046] As an embodiment, the air path assembly further comprises a filter component, wherein the filter component is arranged horizontally opposite to the air inlet so as to filter the air flowing from the air inlet to the supercharging component;

[0047] The filtering component and the pressurizing component are arranged in a transverse direction of the main unit.

[0048] As an embodiment, the gas pipeline assembly includes an oxygen concentration sensor and a first flow sensor, and the oxygen concentration sensor and the first flow sensor are sequentially connected between the boost component and the air intake interface; or,

[0049] The gas pipeline assembly includes an oxygen concentration sensor, and the gas circuit assembly also includes a first flow sensor. The oxygen concentration sensor is connected between the boost component and the air intake interface, and the first flow sensor is connected between the filter component and the boost component.

[0050] As an embodiment, the host further includes a battery and a battery compartment, the battery compartment includes a compartment body and a cover plate, the compartment body is installed at the bottom of the first shell, and the battery compartment is an integrally formed structure, the cover plate covers the compartment body and is enclosed with the compartment body to form a battery chamber, and the battery is arranged in the battery chamber; and / or,

[0051] The medical ventilation device further comprises a movable carrier, and the host is mounted on the movable carrier.

[0052] A second object of the present invention is to provide a medical ventilation device, the medical ventilation device comprising a host, the host comprising a first housing, an air circuit component, an electronic control component, a first cooling fan and a second cooling fan;

[0053] The air circuit assembly, the electric control assembly and the second cooling fan are installed in the first housing, and the second cooling fan is located above the air circuit assembly and the electric control assembly, and the second cooling fan is used to drive the air in the first housing to flow downward;

[0054] The first shell is formed with a first vent and a first air guide port, the first air guide port is used to allow air outside the first shell to enter the first shell; the first cooling fan is installed on the first shell, and the first cooling fan is used to drive the air in the first shell to be discharged from the first vent or to drive the air from the first vent to enter the first shell.

[0055] The third object of the present invention is to provide a medical ventilation device, the medical ventilation device comprising a host, the host comprising a first shell, an air circuit component, an electronic control component and a first cooling fan;

[0056] The gas circuit component and the electric control component are installed in the first housing;

[0057] The first shell is formed with a first vent and a first air guide, the first air guide is used to allow air outside the first shell to enter the first shell; the first heat dissipation fan is installed on the first shell, and the first heat dissipation fan is used to drive the air in the first shell to be discharged from the first vent or to drive the air to enter the first shell from the first vent;

[0058] The electric control component includes an AC-DC converter and a power circuit board. The power circuit board is arranged above the gas circuit component, and the AC-DC converter is arranged on one side of the gas circuit component along the horizontal direction.

[0059] A fourth object of the present invention is to provide a medical ventilation device, the medical ventilation device comprising a host, the host comprising a first housing, an air circuit component, an electronic control component and a first cooling fan;

[0060] The gas circuit component and the electric control component are installed in the first housing;

[0061] The first shell is formed with a first vent and a first air guide, the first air guide is used to allow air outside the first shell to enter the first shell; the first heat dissipation fan is installed on the first shell, and the first heat dissipation fan is used to drive the air in the first shell to be discharged from the first vent or to drive the air to enter the first shell from the first vent;

[0062] The electric control component includes an AC-DC converter and an energy capacitor, and the energy capacitor and the AC-DC converter are respectively arranged on two opposite sides of the gas circuit component in the horizontal direction.

[0063] A fifth object of the present invention is to provide a medical ventilation device, the medical ventilation device comprising:

[0064] A host, the host comprising a first shell, an air circuit assembly and an electric control assembly, the air circuit assembly and the electric control assembly are installed in the first shell, and the first shell is formed with a first vent and a first air guide;

[0065] A display, the display comprising a second shell, a main control board and a display screen, one side of the second shell being connected to the first shell, the display screen being arranged on a side of the second shell facing away from the first shell, the main control board being arranged in the second shell and being located on a side of the display screen facing the first shell, the second shell being formed with a second vent and a second air guide, the second air guide being opposite to and connected to the first air guide;

[0066] One of the first vent and the second vent is an air inlet, and the other is an air outlet;

[0067] One of the host and the display is also provided with a first cooling fan, which is used to drive air into the medical ventilation device from the air inlet, and then be discharged out of the medical ventilation device from the air outlet after passing through the second air guide port and the first air guide port that are connected to each other.

[0068] The medical ventilation device provided by the first and fifth purposes of the present invention is provided by arranging a first air guide port, a first vent port and a first cooling fan on the host, arranging a second vent port and a second air guide port on the display, and making the second air guide port opposite to the first air guide port and conducting with each other, setting one of the first vent port and the second vent port as an air inlet and the other as an air outlet; arranging a first cooling fan on one of the host and the display to drive air from the air inlet into the medical ventilation device, and discharging the air from the air outlet after passing through the second air guide port and the first air guide port that are conducting with each other, so that the air can flow between the display and the host to dissipate heat through the second air guide port and the first air guide port that are conducting with each other, so that the first cooling fan can provide driving force for the heat dissipation airflow of the host and the display at the same time. In addition, the host and the display share the air inlet, the cooling fan and the air outlet, optimizing the heat dissipation structure of the host and the display, with a simple structure and low cost, and reducing the exposed opening amount of the display and the host.

[0069] The second object of the present invention provides a medical ventilation device, by setting a first air guide port, a first vent, a first cooling fan and a second cooling fan on the main unit, the first cooling fan drives the air in the main unit to be discharged or inhaled from the first vent, and the second cooling fan drives the air in the main unit to flow downward. Since hot air naturally flows upward, the second cooling fan can help avoid the accumulation of hot air in a local area inside the main unit, so that the hot air can be better driven and discharged by the first cooling fan. The dual-fan design fully guarantees the heat dissipation effect of each component and area of ​​the main unit, thereby improving the heat dissipation effect of the main unit.

[0070] The third object of the present invention provides a medical ventilation device, which optimizes the layout of the electronic control components in the host, arranges the power circuit board above the gas circuit component, and arranges the AC-DC converter on one side of the gas circuit component in the horizontal direction, so that the power circuit board with higher heat generation and the AC-DC converter are arranged in different areas respectively, thereby reducing the mutual influence of components with higher heat generation in space, thereby facilitating the heat dissipation effect of the host. Considering that heat is transferred from bottom to top, the power circuit board with higher heat generation is placed above the gas circuit component, which can prevent the heat generated by the power circuit board from directly transferring heat to the gas circuit component, especially to the components in the gas circuit component that are more affected by heat.

[0071] The medical ventilation equipment provided by the fourth purpose of the present invention optimizes the layout of the electronic control components in the main unit, and arranges the energy capacitor and the AC-DC converter on opposite sides of the air path component in the horizontal direction, so that the AC-DC converter with high heat generation is arranged separately from the energy capacitor, thereby allowing the energy capacitor to avoid the heat-generating components, thereby helping to improve the heat dissipation effect of the main unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0073] Figure 1 is a three-dimensional schematic diagram of a medical ventilation device provided in Embodiment 1 of the present invention;

[0074] Figure 2 It is a schematic diagram of the assembly of the display and the host front panel provided by the first embodiment of the present invention;

[0075] Figure 3 It is a schematic diagram of the assembly of the host, the second backplane of the display, and the main control board provided by the first embodiment of the present invention;

[0076] Figure 4 It is a schematic diagram of assembling the host and the display after removing the first back plate provided by the first embodiment of the present invention;

[0077] Figure 5 It is a schematic diagram of assembling the host and the display after removing the top plate provided by the first embodiment of the present invention;

[0078] Figure 6 is a schematic diagram of the structure of the display provided by the first embodiment of the present invention after the second back plate is removed;

[0079] Figure 7 is a schematic diagram of the structure of the host provided by the first embodiment of the present invention after the front panel is removed;

[0080] Figure 8 This is a perspective schematic diagram of the host provided by the first embodiment of the present invention after the first housing, the first cooling fan and the second cooling fan are removed;

[0081] Fig. 9 is a schematic diagram from another perspective of the host provided by the first embodiment of the present invention after the first housing, the first cooling fan and the second cooling fan are removed;

[0082] Fig.10It is a schematic diagram of the distribution of various components in the first layer space of the host provided by the first embodiment of the present invention;

[0083] Fig.11 It is a schematic diagram of the assembly of a host and a display provided by the first embodiment of the present invention;

[0084] Fig.12 It is a schematic diagram of the structure of the display and the host provided in the first embodiment of the present invention after the first back plate is removed and the battery compartment is in a disassembled state.

[0085] Description of the accompanying drawings: 10, medical ventilation equipment; 100, host; 110, first shell; 111, first vent; 112, first air guide; 113, air inlet; 114, front plate; 115, first back plate; 116, top plate; 120, gas circuit assembly; 121, boost component; 122, oxygen input assembly; 1221, high-pressure oxygen input component; 1222, low-pressure oxygen input component; 1223, gas circuit block; 123, gas pipeline assembly; 1231, oxygen concentration sensor; 1232, first flow sensor; 124, filter component; 125, oxygen sensor seat; 130, electronic control assembly; 131, AC-DC converter; 132, electric Source circuit board; 133, monitoring circuit board; 134, energy capacitor; 135, pressure circuit board; 1351, pressure sensor; 1352, memory; 140, first cooling fan; 150, second cooling fan; 160, main bracket; 161, first partition; 162, second partition; 170, air intake interface; 180, three-way valve; 190, battery compartment; 191, compartment body; 192, cover; 200, display; 210, second shell; 211, second vent; 212, second air guide; 213, second back panel; 220, display; 230, main control board; 300, movable carrier; 310, column; 320, movable base. DETAILED DESCRIPTION

[0086] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0087] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0088] It should also be noted that when an element is referred to as being "fixed on" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element at the same time. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or may be indirectly connected to the other element through an intermediate element.

[0089] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0090] Embodiment 1:

[0091] Reference Figure 1 As shown, a medical ventilation device 10 provided in the first embodiment of the present invention includes a host 100 and a display 200. The host 100 is mainly used to deliver ventilation gas to the patient. The display 200 is mainly used to display the monitoring data of the medical ventilation device 10 and obtain information input by the operator.

[0092] Reference Figure 2 , Figure 4 , Figure 5 and Fig. 9As shown, as an embodiment, the host 100 includes a first housing 110, an air circuit assembly 120, an electric control assembly 130 and a first cooling fan 140. The air circuit assembly 120 and the electric control assembly 130 are at least partially installed in the first housing 110. The first housing 110 is formed with a first vent 111 and a first air guide 112. The first air guide 112 is used to allow air outside the first housing 110 to enter the first housing 110. The first vent 111 is an air outlet. The first cooling fan 140 is installed in the first housing 110 and is used to drive the air in the first housing 110 to be discharged from the first vent 111. The first housing 110 is an appearance component of the host 100, which can reduce the exposed components of the host 100. In this way, on the one hand, the air circuit assembly 120, the electric control assembly 130 and the first cooling fan 140 can be protected, and on the other hand, it can be beneficial to ensure the appearance of the host 100. The gas circuit assembly 120 is the gas circuit part of the host 100, and is also the main executive component of the host 100, which is mainly used to provide driving force for the delivery of ventilation gas to the patient. The electric control assembly 130 is the electric control part of the host 100, which can be used to power and electrically control the gas circuit assembly 120 and the first cooling fan 140. The first cooling fan 140, the first vent 111 and the first air guide 112 are at least part of the heat dissipation structure of the host 100, which are mainly used to dissipate heat for the heat-generating components of the host 100. In specific applications, when the host 100 is working, the first cooling fan 140 can drive the air outside the host 100 to enter the host 100 from the first air guide 112 for heat exchange, and drive the air after heat exchange in the host 100 to be discharged from the first vent 111, so that the heat generated by the operation of the host 100 can be taken away through the continuous flow of air, thereby achieving heat dissipation of the host 100.

[0093] Reference Figure 1 , Figure 3 and Figure 6As shown, as an embodiment, the display 200 includes a second housing 210 and a display screen 220. One side of the second housing 210 is connected to the first housing 110. The display screen 220 is arranged on the side of the second housing 210 facing away from the first housing 110. The second housing 210 is formed with a second vent 211 and a second air guide 212. The second vent 211 is an air inlet. The second vent 211 is used to allow outside air to enter the second housing 210. The second air guide 212 is used to allow air in the second housing 210 to be discharged from the second housing 210. The second housing 210 is an appearance component of the display 200, which can reduce the exposed components of the display 200. In this way, on the one hand, the electrical components of the display 200 can be protected, and on the other hand, it can help to ensure the appearance of the display 200. The display screen 220 is the display part of the display 200 and is also the main execution component of the display 200. The second vent 211 and the second air guide 212 are at least part of the heat dissipation structure of the display 200, which is mainly used to dissipate heat for the heat generating components of the display 200. In a specific application, when the display 200 is working, the air outside the display 200 enters the display 200 from the second ventilation port 211 for heat exchange, and then the air after heat exchange is discharged from the display 200 from the second air guide port 212. Thus, the heat generated by the display 200 during operation can be taken away by the continuous flow of air, thereby achieving heat dissipation of the display 200.

[0094] Reference Figures 2 to 5 As shown, as an embodiment, the second air guide 212 is opposite to the first air guide 112 and is in communication with each other, and the air in the second housing 210 is guided to the first housing 110 through the second air guide 212 and the first air guide 112 that are in communication with each other, that is, the second air guide 212 and the first air guide 112 are used to guide the air in the second housing 210 to the first housing 110. By designing that the second air guide 212 and the first air guide 112 are opposite to each other and are in communication with each other, the heat dissipation air discharged from the display 200 can enter the host 100 for further heat exchange and then be discharged from the host 100, so that the first heat dissipation fan 140 on the host 100 can provide driving force for the heat dissipation airflow of the host 100 and the display 200 at the same time, thereby improving the heat dissipation effect of the display 200 without increasing the size of the display 200, and ensuring the service life and working stability of the display 200. The host 100 and the display 200 share the second vent 211, the cooling fan and the first vent 111, which optimizes the heat dissipation structure of the host 100 and the display 200, has a simple structure, low cost, and reduces the exposed openings of the display 200 and the host 100.

[0095] Reference Figure 1 , Figure 3 and Figure 6As shown, as an embodiment, the display 200 further includes a main control board 230, which is disposed in the second housing 210 and located on the side of the display screen 220 facing the first housing 110. In this embodiment, the main control board 230 is disposed in the display 200, which is conducive to the electrical connection between the main control board 230 and the display screen 220, and is conducive to reducing the volume of the host 100. In addition, the main control board 230 is both a component with a large heat generation and a component that is greatly affected by heat. The main control board 230 is disposed in the display 200, which can also help prevent the components in the host 100 that generate a large amount of heat from affecting the main control board 230. Of course, in a specific application, as an alternative embodiment, the main control board 230 can also be disposed in the first housing 110 of the host 100.

[0096] As an embodiment, the main control panel 230 shown is at least used to control the display screen 220 to intuitively display various types of information, such as displaying the respiratory waveform data when the medical ventilation equipment 10 ventilates the patient, displaying the patient's status information, the identification results of the ventilation status, various prompt information or alarm information, etc. The displayed content may specifically include text, charts, numbers, colors, waveforms, characters, etc.

[0097] Reference Figure 2 , Figure 5 and Figure 7 As shown, as an embodiment, the first housing 110 includes a front plate 114, a first back plate 115 and a top plate 116, the front plate 114 is located at the front side of the first housing 110, the first back plate 115 is located at the rear side of the first housing 110, and the top plate 116 is located at the top of the first housing 110. The first air guide 112 is formed on the front housing plate, and the first vent 111 is formed on the first back plate 115.

[0098] Reference Figure 2 , Figure 3 and Figure 6 As shown, as an embodiment, the second housing 210 includes a second back plate 213 , and the second back plate 213 is located at the rear side of the second housing 210 . A second vent 211 and a second air guide 212 are formed on the second back plate 213 .

[0099] Reference Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, as an embodiment, the host 100 further includes a second cooling fan 150, which is arranged in the first housing 110 and located above the air path assembly 120 and the electronic control assembly 130. The second cooling fan 150 is used to drive the air in the first housing 110 to flow downward. Since the hot air always flows upward, the second cooling fan 150 is set to blow air downward from the top of the internal space of the host 100, so that the hot air above is blown to the exhaust area of ​​the first cooling fan 140. In a specific application, when the first cooling fan 140 and the second cooling fan 150 are both working, the second cooling fan 150 blows air downward from the top of the internal space of the host 100, so that the hot air at the top of the host 100 can flow downward, and after mixing with the lower temperature air below, it is driven by the first cooling fan 140 to be discharged from the first vent 111, thereby avoiding the undesirable phenomenon of hot air accumulating in a local area inside the host 100, and fully ensuring the heat dissipation effect of various components and areas of the host 100. This embodiment adopts a dual-fan design, which can help to better discharge the heat in the host 100 and improve the heat dissipation effect of the host 100.

[0100] As an implementation manner, the first heat dissipation fan 140 is disposed beside the air path component 120 in a horizontal direction, which is conducive to better heat dissipation for the air path component 120.

[0101] Reference Figure 1 , Figure 3 and Figure 5 As shown, as an embodiment, the first vent 111 is arranged on the side of the first housing 110 facing away from the display 200. The display 200 is the side of the medical ventilation device 10 facing the operator. The first vent 111 is arranged on the side of the first housing 110 facing away from the display 200, which is equivalent to arranging the first vent 111 on the back of the host 100. On the one hand, it is beneficial to prevent the hot air discharged from the first vent 111 from blowing onto the operator, and on the other hand, it is beneficial to prevent the operator from seeing the first vent 111, which is beneficial to ensure the aesthetics of the common area of ​​the medical ventilation device 10. Of course, in specific applications, the first vent 111 is not limited to being arranged on the back of the host 100. For example, as an alternative embodiment, the first vent 111 can also be arranged on the left or right side or the bottom or top of the host 100; or, as another alternative embodiment, more than two first vents 111 can be arranged, one on the back of the host 100, and the other on the left or right side or the bottom or top of the host 100.

[0102] Reference Figure 4 , Figure 5 and Fig. 9As shown, as an implementation, the first cooling fan 140 is disposed at the first vent 111, and the first cooling fan 140 is located inside the first housing 110 or outside the first housing 110. In this implementation, the first cooling fan 140 is disposed at the first vent 111, so that the first cooling fan 140 does not affect the arrangement of the air circuit component 120 and the electronic control component 130 in the host 100.

[0103] Reference Figure 1 , Figure 2 and Figure 3 As shown, as an embodiment, the second vent 211 and the second air guide 212 are both arranged on the side of the second housing 210 facing away from the display screen 220. The display screen 220 is the side of the display 200 facing the operator. The second vent 211 and the second air guide 212 are arranged on the side of the second housing 210 facing away from the display screen 220, which is equivalent to arranging the second vent 211 and the second air guide 212 on the back of the display 200, which is beneficial to prevent the operator from seeing the second vent 211 and to ensure the aesthetics of the common area of ​​the medical ventilation device 10.

[0104] As an embodiment, the side of the second housing 210 facing away from the display screen 220 has a first area and a second area, the first area is superimposed on the first housing 110, and the second area is exposed to the air; the second air guide 212 is provided in the first area; the second vent 211 is provided in the second area. The second vent 211 is located in the non-overlapping area of ​​the second housing 210 and the first housing 110, which is conducive to better external air entering the display 200 for heat exchange. The second air guide 212 is located in the overlapping area of ​​the second housing 210 and the first housing 110, which is conducive to better guiding the air in the display 200 to the host 100.

[0105] Reference Figure 1 , Figure 8 and Fig. 9 As shown, as an embodiment, the electric control component 130 includes an AC-DC converter 131 and a power supply circuit board 132. The AC-DC converter 131 is used to convert the AC input current into DC and output it to the subsequent electric control components for power supply. The power supply circuit board 132 is used for energy conversion control of DC power and power supply control of various electrical components in the medical ventilation device 10. Energy conversion control of DC power includes: converting power of one voltage value into power of another voltage value.

[0106] As an implementation mode, the AC-DC converter 131 and the power circuit board 132 are respectively arranged on different sides of the gas circuit assembly 120. With this arrangement, the power circuit board 132 and the AC-DC converter 131, which generate relatively large amounts of heat, can be arranged in different areas, thereby spatially reducing the mutual influence of components that generate relatively large amounts of heat, thereby facilitating the improvement of the heat dissipation effect of the host 100. In addition, the AC-DC converter 131 and the power circuit board 132 are distributed on different sides of the gas circuit assembly 120, which facilitates the distribution of the electronic control assembly 130 around the gas circuit assembly 120, thereby facilitating the improvement of the compactness of the structure of the medical ventilation device 10.

[0107] Reference Figure 1 , Figure 8 and Fig. 9 As shown, as an implementation, the power circuit board 132 is arranged above the gas circuit assembly 120, and the AC-DC converter 131 is arranged horizontally on one side of the gas circuit assembly 120. Considering that heat is transferred from bottom to top, the power circuit board 132 with a larger heat generation is placed above the gas circuit assembly 120, which can prevent the heat generated by the power circuit board 132 from being directly transferred to the gas circuit assembly 120, especially to the components in the gas circuit assembly 120 that are more affected by heat.

[0108] Reference Figure 1 , Figure 8 and Fig. 9 As shown, as an implementation, the electric control component 130 further includes a monitoring circuit board 133 , and the monitoring circuit board 133 is mainly used for monitoring the working parameters of the medical ventilation device 10 .

[0109] Reference Figure 1 , Figure 8 and Fig. 9 As shown, as an embodiment, the monitoring circuit board 133 is arranged above the gas circuit assembly 120 and below the power circuit board 132. Since the heat generated by the power circuit board 132 is greater than the heat generated by the monitoring circuit board 133, the monitoring circuit board 133 is arranged below the power circuit board 132 to avoid the heat generated by the power circuit board 132 being directly transferred to the monitoring circuit board 133. The monitoring circuit board 133 is arranged between the gas circuit assembly 120 and the power circuit board 132 in the vertical direction to avoid the heat generated by the power circuit board 132 being directly transferred to the gas circuit assembly 120, and to facilitate the electrical connection between the monitoring circuit board 133 and the power circuit board 132.

[0110] Reference Figure 1 , Fig. 9 and Fig.10As shown, as an embodiment, the host 100 further includes a first partition 161, which is disposed between the AC-DC converter 131 and the gas circuit assembly 120 to separate the AC-DC converter 131 and the gas circuit assembly 120. The AC-DC converter 131 is a heat-generating component, but not a heat-sensitive component. The first partition 161 is mainly used for heat insulation, thereby helping to reduce the influence of the heat generated by the AC-DC converter 131 on the gas circuit assembly 120 and other electronic control components.

[0111] As an implementation mode, the AC-DC converter 131 and the first vent 111 are respectively arranged on two adjacent sides of the air path assembly 120, so that the heat generated by the operation of the AC-DC converter 131 can be quickly sucked to the first vent 111 for discharge, thereby helping to reduce the impact of the heat generated by the operation of the AC-DC converter 131 on other components in the host 100.

[0112] Reference Figure 1 , Fig. 9 and Fig.10 As shown, as an embodiment, the electric control component 130 also includes an energy capacitor 134, and the energy capacitor 134 and the AC-DC converter 131 are respectively arranged on opposite sides of the gas circuit component 120 in the horizontal direction. The energy capacitor 134 is used to store energy, and its operating temperature cannot be too high. It is one of the key heat-sensitive components of the medical ventilation device 10. In this embodiment, the energy capacitor 134 and the AC-DC converter 131 are respectively arranged on opposite sides of the gas circuit component 120 in the horizontal direction, so that the energy capacitor 134 can be kept away from the AC-DC converter 131 with larger heat generation, thereby avoiding the heat generated by the AC-DC converter 131 from affecting the energy capacitor 134.

[0113] Reference Figure 1 , Fig. 9 and Fig.10 As shown, as an embodiment, the host 100 further includes a second partition 162, which is disposed between the energy capacitor 134 and the gas circuit assembly 120 to separate the energy capacitor 134 from the gas circuit assembly 120. The second partition 162 is mainly used for heat insulation, thereby reducing the influence of the heat generated by the gas circuit assembly 120 and other components beside the gas circuit assembly 120 on the energy capacitor 134.

[0114] Reference Figure 1 , Figure 8 and Fig.10As shown, as an embodiment, the host 100 further includes a main bracket 160, and the gas circuit component 120 and the electronic control component 130 are mostly installed on the main bracket 160. The first partition 161 and the second partition 162 are part of the main bracket 160. The main bracket 160 can be an integrated bracket or a bracket formed by connecting multiple components.

[0115] Reference Figure 1 , Figure 8 and Fig. 9 As shown, as an embodiment, the electric control component 130 further includes a pressure circuit board 135, which is used to monitor the gas pressure output by the gas circuit component 120; the pressure circuit board 135 is arranged on the side of the gas circuit component 120 facing the display 200. In this embodiment, the pressure circuit board 135 is arranged in front of the gas circuit component 120 to avoid heat sources such as the AC-DC converter 131 and the heat-generating components in the gas circuit component 120 that generate relatively large amounts of heat.

[0116] Reference Figure 1 , Figure 8 and Fig. 9 As shown, as an implementation mode, a pressure sensor 1351 and a memory 1352 are provided on the pressure circuit board 135. The pressure sensor 1351 is used to monitor the pressure signal of the gas output by the gas circuit assembly 120, and the memory 1352 is used to store the corresponding relationship between the pressure signal and the pressure value. In this implementation mode, by arranging the pressure sensor 1351 for realizing the pressure signal measurement and the memory 1352 for storing the corresponding relationship between the pressure signal and the pressure value on the same circuit board, when the pressure sensor 1351 fails and needs to be repaired, the pressure circuit board 135 including the pressure sensor 1351 and the memory 1352 can be independently disassembled and replaced, thereby avoiding calibration operations, simplifying the maintenance process, and improving maintenance efficiency.

[0117] As an implementation, the memory 1352 includes, but is not limited to, flash memory and / or electrically erasable programmable read-only memory 1352 (EEPROM).

[0118] As an implementation method, the correspondence between the pressure signal and the pressure value is determined by calibration at the factory, that is, the pressure circuit board 135 has been pressure calibrated by a standard pressure measuring device before leaving the factory, and the correspondence between the pressure signal and the pressure value is stored in the memory 1352. Therefore, when the pressure sensor 1351 fails, the pressure circuit board 135 can be directly replaced, and no calibration operation is required after the pressure circuit board 135 is installed, thereby simplifying the maintenance process, improving maintenance efficiency, and reducing maintenance costs.

[0119] As an implementation manner, the pressure circuit board 135 is disposed on a side of the gas circuit assembly 120 facing the display 200 .

[0120] Reference Figure 8 and Fig. 9 As shown, as an implementation, the pressure sensor 1351 is connected to the gas circuit assembly 120 via the three-way valve 180 .

[0121] As an implementation manner, the three-way valve 180 is disposed on a side of the gas circuit assembly 120 facing the display 200 .

[0122] Reference Figure 1 , Figure 3 , Figure 5 , Fig. 9 and Fig.10 As shown, as an embodiment, the medical ventilation device 10 further includes an inhalation interface 170, which is provided on the first housing 110 and communicates with the gas circuit assembly 120, so as to supply the gas output by the gas circuit assembly 120 to the patient; the first housing 110 is also formed with an air inlet 113, and the air inlet 113 is used to allow external air to enter the gas circuit assembly 120; the gas circuit assembly 120 includes a pressurizing component 121, an oxygen input component 122 and a gas delivery pipeline component 123, and the pressurizing component 121 is used to allow external air to enter the gas circuit assembly 120. The air from the air inlet 113 is sucked into it for pressurization and then delivered to the gas pipeline assembly 123; the oxygen input assembly 122 is used to deliver the oxygen supplied by the oxygen supply device to the gas pipeline assembly 123; the gas pipeline assembly 123 is used to deliver the air delivered by the pressurization component 121 and the oxygen delivered by the oxygen input assembly 122 to the inhalation interface 170; the gas pipeline assembly 123 and the oxygen input assembly 122 are arranged along the transverse direction of the host 100; the pressurization component 121 is arranged above the gas pipeline assembly 123. The side of the host 100 facing the display 200 is the front of the host 100, and the left and right directions of the host 100 are the transverse directions of the host 100 (refer to Figure 1 and Fig.10 When the operator faces the display 200, the left and right direction of the operator is parallel to the left and right direction of the host 100. In this embodiment, the layout of the gas circuit assembly 120 is optimized so that the components of the gas circuit assembly 120 are centrally arranged, which facilitates the distribution of the electronic control assembly 130 around the gas circuit assembly 120, improves the compactness of the structure of the host 100, and facilitates the miniaturization design of the host 100.

[0123] As an implementation mode, the first vent 111 and the supercharging component 121 are arranged opposite to each other in the horizontal direction, and the first cooling fan 140 is arranged between the first vent 111 and the supercharging component 121 in the horizontal direction. The supercharging component 121 is one of the heat generating components. In this implementation mode, the first cooling fan 140 is directed to the supercharging component 121 to draw air, thereby improving the heat dissipation effect of the supercharging component 121, and the supercharging component 121 can be kept away from the heat source components with larger heat generation in the host 100, and the heat dissipation effect of the first cooling fan 140 on the supercharging component 121 is beneficial to ensure the life and performance of the supercharging component 121.

[0124] As an embodiment, the supercharging component 121 includes a turbine box and a turbine, and the turbine is arranged in the turbine box. Placing the turbine in the turbine box is conducive to making the turbine avoid other components with high heat generation and is conducive to the noise reduction design of the turbine. Of course, in specific applications, the supercharging component 121 can also be other components that can supercharge the gas path.

[0125] Reference Figure 1 , Figure 5 and Fig. 9 As shown, as an embodiment, the air circuit assembly 120 further includes a filter component 124, which is arranged horizontally opposite to the air inlet 113 to filter the air flowing from the air inlet 113 to the boost component 121. The filter component 124 is mainly used to filter the air entering the air circuit assembly 120, so that the air inhaled by the boost component 121 is filtered by the filter component 124, thereby preventing impurities in the air from polluting the boost component 121 and other components in the air circuit assembly 120 and the medical ventilation device 10, thereby ensuring the service life of the boost component 121, the air circuit assembly 120 and the medical ventilation device 10.

[0126] As an implementation method, the filter component 124 and the pressurizing component 121 are arranged in the transverse direction of the host 100. In this implementation method, the filter component 124 and the pressurizing component 121 are arranged side by side in the horizontal direction.

[0127] Reference Figure 1 , Fig. 9 and Fig.10 As shown, as an embodiment, the oxygen input component 122 includes a high-pressure oxygen input component 1221 and a low-pressure oxygen input component 1222. The high-pressure oxygen input component 1221 is used to deliver higher-purity oxygen to the gas circuit component 120 of the host 100, and the low-pressure oxygen input component 1222 is used to deliver relatively low-purity oxygen to the gas circuit component 120 of the host 100.

[0128] Reference Fig.10As shown, as an embodiment, the oxygen input assembly 122 further includes a gas circuit block 1223 , and the high-pressure oxygen input component 1221 and the low-pressure oxygen input component 1222 are connected to the gas circuit assembly 120 via the gas circuit block 1223 .

[0129] Reference Figure 1 , Figure 7 , Fig. 9 and Fig.10 As shown, as an embodiment, the gas pipeline assembly 123 includes an oxygen concentration sensor 1231 and a first flow sensor 1232, and the oxygen concentration sensor 1231 and the first flow sensor 1232 are connected between the supercharging component 121 and the air inhalation interface 170 in sequence. The oxygen concentration sensor 1231 is used to detect the concentration of oxygen in the gas, and the first flow sensor 1232 is used to detect the flow of the gas. In this embodiment, the oxygen concentration sensor 1231 and the first flow sensor 1232 are both located in the downstream gas path of the supercharging component 121. Of course, in a specific application, as an alternative embodiment, the first flow sensor 1232 can also be arranged in the upstream gas path of the supercharging component 121. Specifically, in this alternative embodiment, the gas pipeline assembly 123 includes the oxygen concentration sensor 1231, and the gas path assembly 120 also includes the first flow sensor 1232. The oxygen concentration sensor 1231 is connected between the supercharging component 121 and the air inhalation interface 170, and the first flow sensor 1232 is connected between the filter component 124 and the supercharging component 121.

[0130] Reference Figure 8 , Fig. 9 and Fig.10 As shown, as an implementation mode, the oxygen concentration sensor 1231 is installed on the oxygen sensor seat 125, and the intake interface 170, the first flow sensor 1232 and the oxygen sensor seat 125 are sequentially distributed along a horizontal straight line. With this layout, the intake airflow can be smooth and the flow accuracy measurement can be accurate. At the same time, since the oxygen concentration sensor 1231 monitors on the main branch of the intake air, the oxygen concentration monitoring can be more accurate.

[0131] As an implementation mode, the first flow sensor 1232 is connected to the air intake interface 170 and the oxygen sensor seat 125 respectively through a silicone seal, which ensures the reliability and air tightness of the connection. At the same time, the silicone seal is fixed on the main bracket 160, and the oxygen sensor seat 125 simultaneously connects the first flow sensor 1232 to the turbine box outlet (the turbine box is placed in the second layer space) and fixes the oxygen concentration sensor 1231.

[0132] Reference Figure 1 , Figure 8 , Fig. 9 and Fig.10As shown, as an implementation method, the host 100 is divided into at least three layers, the air intake interface 170, the oxygen input component 122, the oxygen concentration sensor 1231, the first flow sensor 1232, the AC-DC converter 131, and the energy capacitor 134 are arranged in the first layer space, the boost component 121, the filter component 124, and the first cooling fan 140 are arranged in the second layer space, and the monitoring circuit board 133 and the power supply circuit board 132 are arranged in the third layer space, the second layer space is located above the first layer space, and the third layer space is located above the second layer space. With this arrangement, the boost component 121 can avoid components with greater heat generation to ensure the life performance of the boost component 121.

[0133] As an implementation manner, the second heat dissipation fan 150 is disposed between the power circuit board 132 and the top plate 116 along the vertical direction.

[0134] As an implementation mode, the electric control component 130 is distributed around the gas circuit component 120 , which is beneficial to improving the compactness of the internal structure of the host 100 and reducing the influence of the heat of the electric control component 130 on the gas circuit component 120 .

[0135] As an implementation method, the heat-sensitive components are arranged away from the heat-generating components, which is conducive to ensuring the performance and life of the heat-sensitive components. The heat-generating components with large heat generation in the medical ventilation device 10 include: power circuit board 132, monitoring circuit board 133, AC-DC converter 131, main control board 230, display screen 220, turbine, battery, etc. The heat-sensitive components in the medical ventilation device 10 that are greatly affected by heat include: energy capacitor 134, first flow sensor 1232, turbine, oxygen concentration sensor 1231, pressure sensor 1351, main control board 230, etc.

[0136] Reference Figure 1 As shown, as an embodiment, the medical ventilation device 10 further includes a movable carrier 300, and the bottom of the host 100 is mounted on the movable carrier 300. The movable carrier 300 is used to carry the display 200 and the host 100, so that the medical ventilation device 10 becomes a movable device.

[0137] Reference Figure 1 As shown, as an embodiment, the movable carrier 300 includes a column 310 and a movable base 320, and the bottom of the column 310 is connected to the movable base 320. The host 100 is arranged on the top of the column 310, so that the host 100 and the movable carrier 300 are connected as a whole.

[0138] As an embodiment, the lateral dimension of the host 100 is smaller than the lateral dimension of the display 200; wherein the lateral dimension of the display 200 is perpendicular to the height direction of the display 200 and perpendicular to the thickness direction of the display 200, and the lateral dimension of the host 100 is parallel to the lateral dimension of the display 200. In the ICU ward, the space is very crowded, especially the lateral space between the beds. For the medical ventilation equipment 10 (such as non-invasive ventilator) that needs to be flexibly turned around, if the overall width of the medical ventilation equipment 10 is too large, it means that the lateral space occupied is also larger. In this embodiment, the design scheme of a large display 200 and a small host 100 is adopted, which is conducive to ensuring the comfort of the operator to watch the information displayed on the display 200, and is conducive to weakening the existence of the host 100. For example, the host 100 and the movable carrier 300 can be considered as an integral whole, so as to reduce the lateral space occupied by the medical ventilation equipment 10, and then it is conducive to placing the medical ventilation equipment 10 in the crowded ICU bed space, and it is conducive to the transportation of the medical ventilation equipment 10. In addition, weakening the presence of the host 100 can also provide patients and medical staff with a lighter device feeling, psychologically reducing the burden and fear brought by the medical ventilation device 10. At the same time, using a large display 200 can allow medical staff to focus on the core operation without being disturbed by unnecessary elements, thereby reducing the occurrence of operational errors.

[0139] As an implementation mode, the lateral dimension of the host 100 is less than or equal to two-thirds of the lateral dimension of the display 200. This setting scheme facilitates making the host 100 with a smaller width, thereby facilitating the weakening of the host 100 to reduce the volume of the host 100 and facilitate movement.

[0140] Reference Figure 1 , Fig.11 and Fig.12 As shown, as an embodiment, the host 100 also includes a battery and a battery compartment 190. The battery compartment 190 includes a compartment body 191 and a cover plate 192. The compartment body 191 is installed at the bottom of the first housing 110, and the battery compartment 190 is an integrally formed structure. The cover plate 192 covers the compartment body 191 and is enclosed with the compartment body 191 to form a battery chamber. The battery is arranged in the battery chamber. Since the battery is also a component that generates a large amount of heat, the battery is placed separately in the compartment at the bottom of the host 100 to prevent the heat of the battery from affecting other components.

[0141] As an implementation manner, the cover plate 192 is the bottom plate of the first shell 110. Of course, in a specific application, as an alternative implementation manner, the cover plate 192 and the bottom plate of the first shell 110 may also be two independent components.

[0142] As an implementation method, the host 100 is installed on the column 310 of the movable carrier 300 through the battery compartment 190. Since the bottom of the host 100 needs to provide connection with the movable carrier 300, disassembly and assembly of the battery, support the host 100, meet the requirements of appearance and heat dissipation, an integrated molded compartment body 191 (metal part) is designed, which can take into account the connection structure with the movable carrier 300, installation of the battery, support of the host 100 and provide a high-end appearance.

[0143] As an implementation mode, battery connection boards are arranged at the front and rear ends of the middle area in the battery compartment 190 to meet the connection requirements when the battery is installed.

[0144] As an implementation mode, a locking structure for connecting the host 100 with the removable carrier 300 is designed at the bottom of the battery compartment 190 located just below the center of the host 100 , so that the host 100 can be connected with the removable carrier 300 .

[0145] As an implementation manner, foot pads are provided at the four corners of the bottom of the battery compartment 190 to support the host 100 on the column 310 .

[0146] As an implementation method, the above-mentioned medical ventilation device 10 is a non-invasive ventilator. Different from an invasive ventilator, a non-invasive ventilator is mainly aimed at critically ill patients with autonomous ventilator capabilities. It provides continuous positive airway pressure ventilation for patients. A non-invasive ventilator does not need to intubate the patient like an invasive ventilator, thereby reducing various complications caused by invasiveness. The patient's condition is milder than that of patients using invasive ventilators. In a critical care I CU, an invasive ventilator is the first line of defense. Each bed is equipped with an invasive ventilator. The invasive ventilator is generally fixed next to the bed, for example, it is fixed on the suspension bridge partition and will not be moved. It may also be placed on a movable carrier 300 (such as a trolley), but the trolley is generally not moved, and it may also be fixed next to the bed. When the patient recovers to a certain extent, the invasive ventilator can be removed and a non-invasive ventilator can be pushed from the equipment room, so that the patient can be transferred to a non-invasive ventilator, and the invasive treatment comes to an end. Therefore, non-invasive ventilators exist as the second line of defense in critical care I CUs. They are not standard equipment for each bed and are equipment that needs to be flexibly circulated within the department. Usually, non-invasive ventilators are not fixed next to the bed, but are stored in a special equipment room. Therefore, the movable carrier 300 of the non-invasive ventilator, the trolley, is very important clinically and is used frequently. In addition, the condition of patients with non-invasive ventilators is relatively milder than that of patients with invasive ventilators. Therefore, when patients with non-invasive ventilators need to be transferred from I CU to other locations such as CT or MR for examination, they generally do not need to carry non-invasive ventilators for transportation in the short term. Unless the patient's condition is really difficult to be separated from the non-invasive ventilator, the non-invasive ventilator will be separated from the trolley for transportation. This situation occurs less frequently in patients receiving non-invasive respiratory treatment. In this embodiment, the above heat dissipation structure and structural layout are applied to a non-invasive ventilator, which is beneficial to making the volume of the non-invasive ventilator relatively small for easy transportation, and is beneficial to ensuring the heat dissipation effect of the non-invasive ventilator, so as to ensure the long-term working stability and service life of the non-invasive ventilator. Of course, in specific applications. The above medical ventilation device 10 can also be used in an invasive ventilator or an anesthesia machine.

[0147] As an implementation method, the implementation scheme of the host 100 mainly includes:

[0148] 1) The components in the first housing 110 are generally arranged in three layers, that is, the components in the first housing 110 are three-dimensionally distributed in the first layer space, the second layer space and the third layer space. Among them, the first layer space is also the bottom layer of the main bracket 160.

[0149] 2) The air path components are mainly arranged in the middle of the first layer of space. Considering the stability of the respiratory gas flow monitoring and the accuracy of the measurement, the air path components in the middle are arranged in a linear shape, with the front end being the inhalation interface 170, which is fixed on the main bracket 160; the middle being the first flow sensor 1232; and the rear end being the oxygen sensor seat 125, which is fixed on the main bracket 160. The first flow sensor 1232 is connected to the inhalation interface 170 and the oxygen sensor seat 125 through a silicone seal, which ensures the reliability and air tightness of the connection. At the same time, the silicone seal is fixed on the main bracket 160, and the oxygen sensor seat 125 simultaneously takes into account the function of connecting the first flow sensor 1232 with the turbine box outlet (the turbine box is placed in the second layer of space) and the function of fixing the oxygen concentration sensor 1231. Such a layout in the middle of the first layer of space can make the inhalation airflow smooth and the flow accuracy measurement accurate. At the same time, since the oxygen concentration sensor 1231 monitors on the main branch of the inhalation, the oxygen concentration monitoring can be more accurate. On the left side of the first layer space (the left and right directions of the first layer space are the same as the left and right directions of the host. When the operator faces the display 200, the left side of the operator is the left side of the host 100. The left and right directions can be referred to Figure 1 , Figure 8 and Fig.10 An AC-DC converter 131 is placed (as shown in the figure). The AC-DC converter 131 is fixed to the main bracket 160 by screws. At the same time, the first flow sensor 1232 and the oxygen concentration sensor 1231, which are easily affected by heat, are separated from the AC-DC converter 131 by the main bracket 160, thereby isolating the heat source. An AC power input socket and an equipotential column are arranged at the rear end of the AC-DC converter 131 in the first layer of space to facilitate power input. On the right side of the oxygen sensor seat 125 (the left and right directions of the oxygen sensor seat 125 are the same as those of the main unit. When the operator faces the display 200, the right side of the operator is the right side of the main unit 100. The left and right directions can be referred to as Figure 1 , Figure 8 and Fig.10 A high-pressure oxygen input component 1221, a low-pressure oxygen input component 1222 and a gas circuit block 1223 are placed in the upper and lower parts of the gas circuit block 1223, and a second flow sensor is placed at the front end of the gas circuit block 1223 to monitor the flow of oxygen. At the same time, the second flow sensor is connected to the oxygen inlet gas circuit block 1223 and the turbine box inlet through a silicone seal. An energy capacitor 134 is placed on the right side of the second flow sensor. This arrangement allows the originally long gas passage to be compressed, while ensuring that the flow and pressure of the gas are not affected. At the same time, the AC-DC converter 131 with a large heat generation is arranged at the far end of the first flow sensor 1232 and the energy capacitor 134, so that the first flow sensor 1232 and the energy capacitor 134 are away from the heat source.

[0150] 3) The second layer of space mainly contains the turbine box, turbine, pressure sensor 1351 and first cooling fan 140. The oxygen inlet of the turbine box is generally located at the front end of the main bracket 160, close to the upper position of the air intake interface 170, and the outlet of the turbine box is located directly above the oxygen concentration sensor 1231 and docked with the oxygen sensor seat 125. The filter component 124 is located above the high-pressure oxygen input component 1221 and the low-pressure oxygen input component 1222, so that the turbine box can inhale the air filtered by the filter component 124. Such an arrangement can make the air and oxygen start to mix at the outlet end of the turbine to ensure the oxygen concentration of the gas sent by the turbine. At the same time, the turbine is placed separately in the turbine box of the second layer of space, avoiding the heat source components with large heat generation, so as to ensure the life and performance of the turbine. Directly behind the turbine, a distance from the turbine and a certain distance, the first cooling fan 140 is fixed on the rear shell to draw air outward, the purpose of which is to draw the hot air flow inside the turbine and the whole machine out of the main unit 100. In addition, the pressure sensor 1351 and the three-way valve 180 are fixed in front of the turbine box to avoid heat sources such as the AC-DC converter 131 and the turbine that generate large amounts of heat.

[0151] 4) The third layer of space is fixed with the monitoring circuit board 133 and the power circuit board 132 by the independent sheet metal parts on the main bracket 160, so that they are placed at the top of the main bracket 160. Considering that heat is transferred from bottom to top, the monitoring circuit board 133 and the power circuit board 132 with larger heat generation are placed at the top of the host 100, which can prevent the heat source from directly transferring heat to the components that are more affected by the heat.

[0152] 5) The battery is placed at the bottom of the first shell 110 of the host 100. Since the battery is also a component that generates a large amount of heat, and the bottom of the host 100 needs to provide connection with the removable carrier 300, disassembly and assembly of the battery, support of the host 100, and meet the requirements of appearance and heat dissipation, an integrated metal part (battery compartment 190) is designed to take into account the connection structure with the removable carrier 300, installation of the battery, support of the host 100, and provision of a high-end appearance. Inside the battery compartment 190, battery connection boards are arranged at the front and rear ends of the middle position to meet the connection requirements when the battery is installed.

[0153] As an implementation method, the implementation scheme of the display 200 mainly includes: since the display screen 220 is also a component with relatively large heat generation, if a fan or the like is added for heat dissipation, the size of the display 200 will be increased. Therefore, by connecting the display 200 to the host 100, and opening a window in the part where the display 200 and the host 100 are connected to form a second air guide port 212 and a first air guide port 112 that are relative to and connected to each other, the display 200 and the host 100 can be integrated into one, and a second vent 211 is provided on the display 200, and a first vent 111, a first cooling fan 140 and a second cooling fan 150 are provided on the host 100. In this way, the medical ventilation equipment 10 can still have a good heat dissipation effect while meeting the design requirements of a small host 100 and a large display screen 220.

[0154] As an implementation, the heat dissipation principle of the medical ventilation device 10 includes: air is drawn through the first cooling fan 140 of the host 100, so that the air flow can enter from the second vent 211 of the display 200, and the air flow passes through the window portion where the host 100 and the display 200 are connected to flow to the host 100. At the same time, the second cooling fan 150 arranged on the top of the inner side of the host 100 directly blows the hot air flow at the top of the host 100 downward to mix it with the cold air below, and then draws it out through the first cooling fan 140 on the back of the host 100.

[0155] The medical ventilation device 10 provided in this embodiment adopts a multi-layer three-dimensional layout with the air circuit component 120 as the center and the electronic control component 130 distributed around it, which is conducive to reducing the volume of the host 100 and optimizing the heat dissipation of the internal components of the host 100, thereby facilitating the design of a large display 200 and a small host 100, facilitating the transportation of the medical ventilation device 10 and reducing the occupied space. In addition, this embodiment adopts a design method of dual fans for the display 200 and the host 100 to dissipate heat together, which can improve the heat dissipation effect of the display 200 and the host 100, so as to reduce the volume of the medical ventilation device 10 while making the heat dissipation of the medical ventilation device 10 well solved. The multifunctional integrated battery compartment 190 design is adopted, so that the battery compartment 190 takes into account the connection structure with the movable carrier 300, the installation of the battery, the support of the host 100 and the requirements of providing a high-end appearance.

[0156] Embodiment 2:

[0157] The difference between the medical ventilation device 10 provided in this embodiment and the embodiment 1 is mainly that the air inlet, the air outlet and the first cooling fan 140 are arranged at different positions, which is specifically reflected in: in the embodiment 1, the air inlet is arranged on the display 200, and the air outlet and the first cooling fan 140 are arranged on the host 100, that is, the first ventilation port 111 is the air outlet, and the first cooling fan 140 is installed on the first shell 110 to drive the air in the first shell 110 to be discharged from the air outlet, and the second ventilation port 211 is the air inlet, and the air in the second shell 210 is discharged through the mutually conductive The second air duct 212 and the first air duct 112 are guided into the first shell 110; in the present embodiment, the air inlet is arranged on the host 100, and the air outlet and the first cooling fan 140 are arranged on the display 200, that is: the first air duct 111 is the air inlet, and the air in the first shell 110 is guided into the second shell 210 through the first air duct 112 and the second air duct 212 which are connected to each other; the second air duct 211 is the air outlet, and the first cooling fan 140 is installed on the second shell 210 to drive the air in the second shell 210 to be discharged from the air outlet.

[0158] Specifically, in this embodiment, the air inlet is arranged on the host 100, the air outlet and the first cooling fan 140 are arranged on the display 200, and the first cooling fan 140 is used to drive air into the host 100 from the air inlet, and is guided to the display 200 through the first air guide port 112 and the second air guide port 212, and finally discharged from the display 200 from the air outlet.

[0159] In addition to the above differences, other parts of the medical ventilation device 10 provided in this embodiment can refer to the first embodiment and will not be described in detail here.

[0160] Embodiment three:

[0161] The main difference between the medical ventilation device 10 provided in this embodiment and that in the second embodiment is that the setting position of the first cooling fan 140 is different, which is specifically reflected in that: in the second embodiment, the first cooling fan 140 is arranged on the display 200 and is located at the air outlet; while in this embodiment, the first cooling fan 140 is arranged on the host 100 and is located at the air inlet.

[0162] Specifically, the first vent 111 is an air inlet, and the first cooling fan 140 is installed on the first shell 110 to drive air from the air inlet into the first shell 110. The air in the first shell 110 is guided to the second shell 210 through the first air guide port 112 and the second air guide port 212 which are interconnected; the second vent 211 is an air outlet.

[0163] In this embodiment, the air inlet and the first cooling fan 140 are arranged on the host 100, and the air outlet is arranged on the display 200. The first cooling fan 140 is used to drive air into the host 100 from the air inlet, and is guided to the display 200 through the first air guide port 112 and the second air guide port 212, and finally discharged from the display 200 from the air outlet.

[0164] In addition to the above differences, other parts of the medical ventilation device 10 provided in this embodiment can refer to the first and second embodiments and will not be described in detail here.

[0165] It can be seen from the above-mentioned embodiments one to three that the setting scheme of the first vent 111, the second vent 211 and the first cooling fan 140 only needs to meet the following conditions: one of the first vent 111 and the second vent 211 is an air inlet and the other is an air outlet; one of the host 100 and the display 200 is provided with a first cooling fan 140, and the first cooling fan 140 is used to drive air into the medical ventilation device 10 from the air inlet, and then be discharged from the medical ventilation device 10 from the air outlet after passing through the second air guide port 212 and the first air guide port 112 which are connected to each other.

[0166] Embodiment 4:

[0167] The medical ventilation device 10 provided in this embodiment is different from that in the first embodiment mainly in that the protection focus is different, which is specifically reflected in that: the protection focus in the first embodiment is that the host 100 and the display 200 share the air inlet, air outlet and cooling fan; while the protection focus of this embodiment is that dual fans are set in the host 100.

[0168] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 and Fig. 9As shown, the medical ventilation device 10 provided in this embodiment includes a host 100, and the host 100 includes a first shell 110, an air circuit component 120, an electronic control component 130, a first cooling fan 140 and a second cooling fan 150; the air circuit component 120, the electronic control component 130 and the second cooling fan 150 are installed in the first shell 110, and the second cooling fan 150 is located above the air circuit component 120 and the electronic control component 130, and the second cooling fan 150 is used to drive the air in the first shell 110 to flow downward; the first shell 110 is formed with a first vent 111 and a first air guide 112, and the first air guide 112 is used to allow air outside the first shell 110 to enter the first shell 110; the first cooling fan 140 is installed in the first shell 110 and is used to drive the air in the first shell 110 to be discharged from the first vent 111. In this embodiment, the air in the host 100 is driven to be discharged from the first vent 111 by the first cooling fan 140, and the air in the host 100 is driven to flow downward by the second cooling fan 150. Since hot air naturally flows upward, the second cooling fan 150 can be provided to prevent hot air from accumulating in a local area inside the host 100, so that the hot air can be better driven to be discharged by the first cooling fan 140. The dual-fan design fully ensures the heat dissipation effect of each component and area of ​​the host 100, thereby improving the heat dissipation effect of the host 100.

[0169] The other parts of the medical ventilation device 10 provided in this embodiment can refer to the first to third embodiments and will not be described in detail here.

[0170] Embodiment five:

[0171] The medical ventilation device 10 provided in this embodiment is different from that in the first embodiment mainly in that the protection emphasis is different.

[0172] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 8 and Fig. 9As shown, the medical ventilation device 10 provided in this embodiment includes a host 100, and the host 100 includes a first shell 110, an air circuit component 120, an electronic control component 130 and a first cooling fan 140; the air circuit component 120 and the electronic control component 130 are installed in the first shell 110; the first shell 110 is formed with a first vent 111 and a first air guide 112, and the first air guide 112 is used for allowing air outside the first shell 110 to enter the first shell 110; the first cooling fan 140 is installed in the first shell 110 and is used to drive the air in the first shell 110 to be discharged from the first vent 111; the electronic control component 130 includes an AC-DC converter 131 and a power supply circuit board 132, the power supply circuit board 132 is arranged above the air circuit component 120, and the AC-DC converter 131 is arranged on one side of the air circuit component 120 along the horizontal direction. In this embodiment, the power circuit board 132 and the AC-DC converter 131, which generate relatively large amounts of heat, are arranged in different areas, so that the mutual influence of components that generate relatively large amounts of heat can be reduced in space, thereby facilitating the improvement of the heat dissipation effect of the host 100. Considering that heat is transferred from bottom to top, the power circuit board 132, which generates relatively large amounts of heat, is placed above the gas circuit assembly 120, so that the heat generated by the power circuit board 132 can be prevented from being directly transferred to the gas circuit assembly 120, especially to the components in the gas circuit assembly 120 that are most affected by the heat.

[0173] The other parts of the medical ventilation device 10 provided in this embodiment can refer to the first to third embodiments and will not be described in detail here.

[0174] Embodiment six:

[0175] The medical ventilation device 10 provided in this embodiment is different from that in the first embodiment mainly in that the protection emphasis is different.

[0176] Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 8 and Fig. 9As shown, the medical ventilation device 10 provided in this embodiment includes a host 100, and the host 100 includes a first shell 110, an air circuit component 120, an electronic control component 130 and a first cooling fan 140; the air circuit component 120 and the electronic control component 130 are installed in the first shell 110; the first shell 110 is formed with a first vent 111 and a first air guide 112, and the first air guide 112 is used for allowing air outside the first shell 110 to enter the first shell 110; the first cooling fan 140 is installed in the first shell 110 and is used to drive the air in the first shell 110 to be discharged from the first vent 111; the electronic control component 130 includes an AC-DC converter 131 and an energy capacitor 134, and the energy capacitor 134 and the AC-DC converter 131 are respectively arranged on opposite sides of the air circuit component 120 in the horizontal direction. In this embodiment, the energy capacitor 134 and the AC-DC converter 131 are respectively arranged on opposite sides of the gas circuit assembly 120 in the horizontal direction, so that the AC-DC converter 131 with a large heat generation is arranged separately from the energy capacitor 134, so that the energy capacitor 134 is away from the heat generating components, thereby facilitating the heat dissipation effect of the host 100. The other parts of this embodiment can refer to the arrangement scheme of the above-mentioned medical ventilation device 10, and will not be described in detail here.

[0177] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A medical ventilation device, characterized in that: include: A host, the host comprising a first shell, an air circuit assembly and an electric control assembly, the air circuit assembly and the electric control assembly are at least partially installed in the first shell, and the first shell is formed with a first vent and a first air guide; A display, the display comprising a second shell and a display screen, one side of the second shell being connected to the first shell, the display screen being arranged on a side of the second shell facing away from the first shell, the second shell being formed with a second vent and a second air guide, the second air guide being opposite to the first air guide and being in conduction with each other; One of the first vent and the second vent is an air inlet, and the other is an air outlet; One of the host and the display is also provided with a first cooling fan, which is used to drive air into the medical ventilation device from the air inlet, and then be discharged out of the medical ventilation device from the air outlet after passing through the second air guide port and the first air guide port that are connected to each other.

2. The medical ventilation device according to claim 1, characterized in that: The first vent is the air outlet, and the first cooling fan is installed on the first housing to drive the air in the first housing to be discharged from the air outlet; The second ventilation port is an air inlet, and the air in the second shell is guided into the first shell through the second air guide port and the first air guide port that are connected to each other.

3. The medical ventilation device according to claim 1, characterized in that: The first vent is the air inlet, and the air in the first shell is guided into the second shell through the first air guide port and the second air guide port that are connected to each other; The second ventilation opening is the air outlet, and the first heat dissipation fan is installed on the second shell to drive the air in the second shell to be discharged from the air outlet.

4. The medical ventilation device according to claim 1, characterized in that: The first vent is the air inlet, the first cooling fan is installed on the first housing to drive air from the air inlet into the first housing, and the air in the first housing is guided into the second housing through the first air guide port and the second air guide port that are connected to each other; The second ventilation opening is the air outlet.

5. The medical ventilation device according to any one of claims 1 to 4, characterized in that: The host also includes a second cooling fan, which is arranged in the first shell and located above the air path component and the electronic control component. The second cooling fan is used to drive the air in the first shell to flow downward.

6. The medical ventilation device according to claim 1, 2 or 4, characterized in that: The first heat dissipation fan is arranged beside the air path component along the horizontal direction.

7. The medical ventilation device according to claim 1, 2 or 4, characterized in that: The first vent is disposed on a side of the first housing facing away from the display; The first heat dissipation fan is disposed at the first vent, and the first heat dissipation fan is located inside the first shell or outside the first shell.

8. The medical ventilation device according to any one of claims 1 to 4, characterized in that: The electric control component includes an AC-DC converter and a power circuit board, and the AC-DC converter and the power circuit board are respectively arranged on different sides of the gas circuit component.

9. The medical ventilation device according to claim 8, characterized in that: The power circuit board is arranged above the gas circuit component, and the AC-DC converter is arranged on one side of the gas circuit component along the horizontal direction.

10. The medical ventilation device according to claim 8, characterized in that: The electric control component also includes a monitoring circuit board, which is arranged above the gas circuit component and below the power circuit board.

11. The medical ventilation device according to claim 8, characterized in that: The host further includes a first partition, which is disposed between the AC-DC converter and the gas circuit assembly to separate the AC-DC converter and the gas circuit assembly; and / or, The AC-to-DC converter and the first vent are respectively arranged on two adjacent sides of the air path component.

12. The medical ventilation device according to claim 8, characterized in that: The electric control component also includes an energy capacitor, and the energy capacitor and the AC-DC converter are respectively arranged on two opposite sides of the gas circuit component along the horizontal direction.

13. The medical ventilation device according to claim 12, characterized in that: The host also includes a second partition, which is arranged between the energy capacitor and the gas circuit component to separate the energy capacitor and the gas circuit component.

14. The medical ventilation device according to any one of claims 1 to 4, characterized in that: The electric control assembly further comprises a pressure circuit board, and the pressure circuit board is used to monitor the gas pressure output by the gas circuit assembly; The pressure circuit board is arranged on a side of the gas circuit component facing the display.

15. The medical ventilation device according to claim 14, characterized in that: The pressure circuit board is provided with a pressure sensor and a memory, wherein the pressure sensor is used to monitor the pressure signal of the gas output by the gas circuit component, and the memory is used to store the corresponding relationship between the pressure signal and the pressure value.

16. The medical ventilation device according to claim 1, characterized in that: The second ventilation opening and the second air guide opening are both arranged on a side of the second shell facing away from the display screen.

17. The medical ventilation device according to any one of claims 1 to 16, characterized in that: The horizontal size of the host is smaller than the horizontal size of the display; The lateral direction of the display is perpendicular to the height direction of the display and perpendicular to the thickness direction of the display, and the lateral direction of the host is parallel to the lateral direction of the display.

18. The medical ventilation device according to claim 17, characterized in that: The horizontal size of the host is less than or equal to two-thirds of the horizontal size of the display.

19. The medical ventilation device of claim 17, wherein: The side of the second shell facing away from the display screen has a first area and a second area, the first area is superimposed on the first shell, and the second area is exposed to the air; The second air guide port is provided in the first area; The second vent is disposed in the second area.

20. The medical ventilation device according to any one of claims 1 to 19, characterized in that: The medical ventilation device further comprises an inhalation interface, which is provided on the first housing and communicates with the gas circuit assembly to supply the gas output by the gas circuit assembly to the patient; The first shell is also formed with an air inlet, and the air inlet is used to allow external air to enter the air circuit assembly; The gas circuit assembly includes a pressurizing component, an oxygen input component and a gas pipeline assembly, wherein the pressurizing component is used to suck outside air from the air inlet into the air inlet, pressurize the air and deliver the air to the gas pipeline assembly; The oxygen input assembly is used to deliver oxygen supplied by the oxygen supply device to the gas delivery pipeline assembly; The air delivery pipeline assembly is used to deliver the air delivered by the pressurizing component and the oxygen delivered by the oxygen input assembly to the inhalation interface; The gas pipeline assembly and the oxygen input assembly are arranged in the transverse direction of the main machine; The pressurizing component is arranged above the gas delivery pipeline assembly.

21. The medical ventilation device of claim 20, wherein: The first vent and the supercharging component are arranged opposite to each other in a horizontal direction, and the first heat dissipation fan is arranged between the first vent and the supercharging component in a horizontal direction.

22. The medical ventilation device of claim 20, wherein: The air path assembly further comprises a filter component, wherein the filter component is arranged horizontally opposite to the air inlet and is used for filtering the air flowing from the air inlet to the supercharging component; The filtering component and the pressurizing component are arranged in a transverse direction of the main unit.

23. The medical ventilation device of claim 22, wherein: The gas pipeline assembly includes an oxygen concentration sensor and a first flow sensor, and the oxygen concentration sensor and the first flow sensor are sequentially connected between the boost component and the air intake interface; or, The gas pipeline assembly includes an oxygen concentration sensor, and the gas circuit assembly also includes a first flow sensor. The oxygen concentration sensor is connected between the boost component and the air intake interface, and the first flow sensor is connected between the filter component and the boost component.

24. The medical ventilation device according to any one of claims 1 to 23, characterized in that: The host further includes a battery and a battery compartment, wherein the battery compartment includes a compartment body and a cover plate, wherein the compartment body is mounted on the bottom of the first housing, and the battery compartment is an integrally formed structure, wherein the cover plate covers the compartment body and is enclosed with the compartment body to form a battery chamber, wherein the battery is disposed in the battery chamber; and / or, The medical ventilation device further comprises a movable carrier, and the host is mounted on the movable carrier.

25. A medical ventilation device, characterized in that: The main machine includes a first housing, an air circuit assembly, an electric control assembly, a first cooling fan and a second cooling fan; The air circuit assembly, the electric control assembly and the second cooling fan are installed in the first housing, and the second cooling fan is located above the air circuit assembly and the electric control assembly, and the second cooling fan is used to drive the air in the first housing to flow downward; The first shell is formed with a first vent and a first air guide port, the first air guide port is used to allow air outside the first shell to enter the first shell; the first cooling fan is installed on the first shell, and the first cooling fan is used to drive the air in the first shell to be discharged from the first vent or to drive the air from the first vent to enter the first shell.

26. A medical ventilation device, characterized in that: The main machine comprises a first housing, an air circuit component, an electric control component and a first cooling fan; The gas circuit component and the electric control component are installed in the first housing; The first shell is formed with a first vent and a first air guide, the first air guide is used to allow air outside the first shell to enter the first shell; the first heat dissipation fan is installed on the first shell, and the first heat dissipation fan is used to drive the air in the first shell to be discharged from the first vent or to drive the air to enter the first shell from the first vent; The electric control component includes an AC-DC converter and a power circuit board. The power circuit board is arranged above the gas circuit component, and the AC-DC converter is arranged on one side of the gas circuit component along the horizontal direction.

27. A medical ventilation device, characterized in that: The main machine comprises a first housing, an air circuit component, an electric control component and a first cooling fan; The gas circuit component and the electric control component are installed in the first housing; The first shell is formed with a first vent and a first air guide, the first air guide is used to allow air outside the first shell to enter the first shell; the first heat dissipation fan is installed on the first shell, and the first heat dissipation fan is used to drive the air in the first shell to be discharged from the first vent or to drive the air to enter the first shell from the first vent; The electric control component includes an AC-DC converter and an energy capacitor, and the energy capacitor and the AC-DC converter are respectively arranged on two opposite sides of the gas circuit component in the horizontal direction.

28. A medical ventilation device, characterized in that: include: A host, the host comprising a first shell, an air circuit assembly and an electric control assembly, the air circuit assembly and the electric control assembly are installed in the first shell, and the first shell is formed with a first vent and a first air guide; A display, the display comprising a second shell, a main control board and a display screen, one side of the second shell being connected to the first shell, the display screen being arranged on a side of the second shell facing away from the first shell, the main control board being arranged in the second shell and being located on a side of the display screen facing the first shell, the second shell being formed with a second vent and a second air guide, the second air guide being opposite to and connected to the first air guide; One of the first vent and the second vent is an air inlet, and the other is an air outlet; One of the host and the display is also provided with a first cooling fan, which is used to drive air into the medical ventilation device from the air inlet, and then be discharged out of the medical ventilation device from the air outlet after passing through the second air guide port and the first air guide port that are connected to each other.

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