Auxiliary ventilator

Abstract

The invention discloses an auxiliary ventilator, which relates to the field of medical instruments and comprises a vent hood, a handpiece, a battery bin, a gas cylinder bin, a display screen and an operation button, wherein a handheld part is detachably installed on the vent hood, a battery bin is installed on the inner wall of the handheld part, a gas cylinder bin is arranged on one side of the battery bin, and a display screen and a plurality of operation buttons are arranged on the outer wall of the handheld part. The whole set of auxiliary ventilation operation can be completed only by one hand of a single person, the operation process is simple, convenient and efficient, and standardized single-person auxiliary ventilation of different people such as children and adults can be achieved. The integrated energy supply and oxygen supply structural design is adopted, complex external pipelines needed by traditional auxiliary ventilation equipment are avoided, and the external connection mode of the device is simplified. In the operation process of an operator, interference of redundant pipelines around the hands is avoided, obstacles in the operation space are effectively reduced, and the accuracy of operation actions is improved.

Description

Technical Field

[0001] This invention relates to the field of medical devices, specifically to an assisted ventilation device. Background Technology

[0002] In emergency scenarios such as cardiopulmonary resuscitation and respiratory failure, traditional artificial respiration is inefficient and carries a high risk of infection. Furthermore, professional ventilators lack portability and cannot meet the immediate ventilation needs of pre-hospital emergency care and primary healthcare settings. This makes simple breathing bags particularly important, and they have now become core equipment in the field of emergency medicine. Simple breathing bags generate positive pressure by manually squeezing the bag, delivering oxygen or air into the patient's lungs to replace spontaneous breathing.

[0003] Existing simple resuscitation bags have a complex structure with numerous components and connection ports, making them prone to connection errors, inconvenient for emergency use, and difficult to operate with a single person and one hand. The bag requires manual compression to provide pressure and deliver oxygen to the body; continuous compression can easily lead to hand fatigue, reducing resuscitation efficiency and quality, and affecting treatment outcomes. Furthermore, patients of different ages have varying inspiratory and expiratory oxygen content, and existing simple resuscitation bags cannot provide targeted operation for patients of different ages.

[0004] Therefore, an auxiliary ventilation device is needed to solve the above-mentioned technical problems. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary ventilation device, comprising: a ventilation hood, a handheld component, a battery compartment, a gas cylinder compartment, a display screen, and operation buttons; The handheld device is detachably mounted on the ventilation hood. The battery compartment is installed on the inner wall of the handheld device. The gas cylinder compartment is located on one side of the battery compartment. The display screen and multiple operation buttons are located on the outer wall of the handheld device.

[0006] Furthermore, as a preferred embodiment, the ventilation hood includes: a hood body, a rubber ring, a stabilizer, a buffer ring, and an air inlet; The cover has a rubber ring at one end and an air inlet at the other end. The straightening body is fitted onto the outer wall of the cover, and the buffer ring is provided at the end of the straightening body away from the cover. A first control valve is provided inside the air inlet, and multiple second control valves are provided on the side wall of the air inlet.

[0007] Furthermore, as a preferred embodiment, the battery compartment includes: a first compartment body, a mounting shell, a battery pack, and a mounting plate; The first compartment is mounted on the inner wall of the handheld component by a plurality of mounting plates on one side. The first compartment is provided with the mounting shell, and the battery pack is installed inside the mounting shell. The first compartment is equipped with an opening and closing door at one end.

[0008] Furthermore, as a preferred embodiment, the gas cylinder compartment includes: a second compartment body, a gas outlet, a gas cylinder, a gas outlet pipe, and a connecting frame; The second chamber has an air outlet at one end and a screw cap at the other end. The gas cylinder is installed inside the second chamber, and an air outlet pipe is installed at one end of the gas cylinder. The outer wall of the air outlet pipe is matched with the inner wall of the air outlet. The second compartment is connected to the end of the first compartment away from the mounting plate via multiple connecting brackets; The air outlet, the air outlet pipe, and the air inlet are arranged coaxially.

[0009] Furthermore, as a preferred embodiment, the handheld component includes: an upper partition, a lower partition, a pressure control area, a discharge area, a pressure control outlet, an exhaust outlet, a mounting area, and a top cover; The handheld device has an openable top cover at the end away from the ventilator. The handheld device has an upper partition and a lower partition inside. The upper partition and the top cover form the mounting area. The upper partition and the lower partition form the pressure control area. The lower partition and the ventilator form the discharge area. The handheld device has a pressure control outlet on its side wall within the pressure control zone, and an exhaust outlet on its side wall within the discharge zone; The battery compartment and the gas cylinder compartment are located within the installation area. The gas outlet pipe passes through the upper partition and communicates with the pressure control area. The gas inlet passes through the lower partition and communicates with the pressure control area. The emission control mechanism is installed within the emission zone.

[0010] Furthermore, preferably, the air inlet is connected to the pressure control zone through the first control valve, and the air inlet is connected to the discharge zone through a plurality of second control valves.

[0011] Furthermore, as a preferred embodiment, the control and arrangement mechanism includes: a column housing, a support column, a first control and arrangement component, a second control and arrangement component, an inlet, and an outlet; The support column is located at the center of the interior of the column shell. The outer wall of the column shell is connected to the inner wall of the handheld device discharge area. The air inlet is provided through the inside of the support column. Multiple first control discharge components and multiple second control discharge components are arranged around the circumference of the outer wall of the support column. The multiple first control discharge components and multiple second control discharge components each occupy one half of the circumference of the outer wall of the support column. The column housing has an inlet at one end near the vent hood, and an outlet on the side wall of the column housing. The discharge area is connected to the air intake area between the first and second control exhaust components adjacent to each other inside the column housing through the inlet. The exhaust outlet is connected to the exhaust area between the first and second control exhaust components adjacent to the air intake area inside the column housing through the outlet.

[0012] Furthermore, as a preferred embodiment, the first control and arrangement component includes: a first column, a first fixing plate, and a first rotating plate; The outer wall of one side of the first column is connected to the outer wall of the support column through the first fixing plate, and the outer wall of the other side is rotatably provided with the first rotating plate through the first rotating component.

[0013] Furthermore, as a preferred embodiment, the second control assembly includes: a second column, a second fixing plate, and a second rotating plate; Wherein, one side of the outer wall of the second column is connected to the outer wall of the support column through the second fixing plate, and the other side of the outer wall is rotatably provided with the second rotating plate through the second rotating component; The distance between the rotation center of the second rotating plate and the center of the support column is less than the distance between the rotation center of the first rotating plate and the center of the support column. The second rotating component has the same structure as the first rotating component and is arranged symmetrically.

[0014] Furthermore, as a preferred embodiment, the first rotating component includes: a connecting block, a rotating cavity, a slide rail, and a first spring; Wherein, one end of the connecting block is disposed on the outer wall of the first column, and the other end is provided with the rotating cavity. The first rotating plate is rotatably disposed in the rotating cavity via the slide rail. A first spring is disposed in the rotating cavity and connected between the side wall of the first rotating plate and the inner wall of the rotating cavity. The spring constant of the second spring located inside the second rotating member is greater than the spring constant of the first spring located inside the first rotating member.

[0015] Compared with the prior art, the present invention provides an auxiliary ventilation device, which has the following beneficial effects: Advantage 1: This invention utilizes a differentiated rotation design between the first and second rotating plates, and employs first and second springs with different stiffness coefficients to match the exhaled gas thrust thresholds for both child and adult modes. The first distance formed by the rotation of the first rotating plate and the second distance formed by the rotation of the second rotating plate correspond to the conduction conditions of the low-flow child exhalation path and the high-flow adult exhalation path, respectively, achieving precise adaptation between exhaled gas flow and exhaust mode.

[0016] Advantage Two: In pediatric mode, the exhaled gas thrust can only connect to the flow path in this mode. In adult mode, the exhaled gas thrust can connect to the flow path in adult mode while also being compatible with the flow path in pediatric mode. Both flow paths follow a graded flow path, rather than direct discharge. This buffers and guides the exhaled gas airflow, avoiding pressure fluctuations within the device caused by sudden airflow changes. It also eliminates the risk of re-inhalation of exhaled gas caused by delayed exhalation in adult mode, ensuring the safety and comfort of the patient's breathing process.

[0017] Advantage 3: This invention allows for a single person to complete the entire assisted ventilation procedure with just one hand. The operation process is simple and efficient, enabling standardized single-person assisted ventilation for different populations, including children and adults, significantly improving the convenience and versatility of clinical operations. The integrated power and oxygen supply structure design avoids the complex external tubing required by traditional assisted ventilation equipment, simplifying the external connection of the device. During operation, there are no extraneous tubing around the operator's hands, effectively reducing obstacles in the operating space. This not only improves the accuracy of the operation but also helps ensure the smooth implementation of assisted ventilation, thereby optimizing the assisted ventilation effect for the patient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of an auxiliary ventilation device. Figure 2 This is a schematic diagram of the ventilation hood structure of an auxiliary ventilation device; Figure 3 This is a schematic diagram of the battery compartment and gas cylinder compartment of an auxiliary ventilation device. Figure 4 A schematic diagram of the handheld component of an auxiliary ventilator. Figure 1 ; Figure 5 A schematic diagram of the control and exhaust mechanism of an auxiliary ventilation device. Figure 1 ; Figure 6 This is a schematic diagram of the structure of the first rotating component of an auxiliary ventilation device; Figure 7 A schematic diagram of the control and exhaust mechanism of an auxiliary ventilation device. Figure 2 ; Figure 8 A schematic diagram of the exhaust operation of an auxiliary ventilation device. Figure 1 ; Figure 9 A schematic diagram of the exhaust operation of an auxiliary ventilation device. Figure 2 ; Figure 10 This is a schematic diagram of the structure of the second rotating component of an auxiliary ventilation device; Figure 11 A schematic diagram of the handheld component of an auxiliary ventilator. Figure 2; In the diagram: 1. Ventilation hood; 11. Hood body; 12. Rubber ring; 13. Straightening body; 14. Buffer ring; 15. Air inlet; 151. First control valve; 152. Second control valve; 2. Handheld component; 21. Upper partition; 22. Lower partition; 23. Pressure control area; 24. Discharge area; 25. Pressure control outlet; 26. Exhaust outlet; 27. Installation area; 28. Top cover; 3. Battery compartment; 31. First compartment body; 32. Mounting shell; 33. Battery pack; 34. Mounting plate; 4. Gas cylinder compartment; 41. Second compartment body; 42. Air outlet; 43. Gas cylinder; 44. Air outlet pipe; 4 5. Connecting frame; 5. Display screen; 6. Operation button; 7. Control and discharge mechanism; 71. Column housing; 72. Support column; 73. First control and discharge assembly; 731. First column; 732. First fixing plate; 733. First rotating plate; 74. Second control and discharge assembly; 741. Second column; 742. Second fixing plate; 743. Second rotating plate; 75. Inlet; 76. Outlet; 8. First rotating component; 81. Connecting block; 82. Rotating cavity; 83. Slide rail; 84. First spring; 9. Second rotating component; 10. Bellows; 101. Endotracheal tube; 102. Third control valve. Detailed Implementation

[0019] Please see Figures 1-11 The present invention provides an auxiliary ventilation device, comprising: a ventilation hood 1, a handheld component 2, a battery compartment 3, a gas cylinder compartment 4, a display screen 5, and operation buttons 6; The ventilation hood 1 is detachably equipped with a handheld device 2, the inner wall of the handheld device 2 is equipped with a battery compartment 3, a gas cylinder compartment 4 is provided on one side of the battery compartment 3, and the outer wall of the handheld device 2 is equipped with a display screen 5 and multiple operation buttons 6.

[0020] In this embodiment, please refer to Figure 1 As shown, the ventilation mask 1 fits snugly against the patient's face to assist in breathing. The handheld unit 2 provides a grip for the operator and also serves as a storage component for the battery compartment 3 and the gas cylinder compartment 4. The battery compartment 3 supplies power to the components requiring electricity in the device, while the gas cylinder compartment 4 supplies sufficient oxygen to the patient. The display screen 5 shows various indicators during assisted ventilation, and the operation button 6 controls the gas cylinder compartment 4 to supply the corresponding amount of oxygen to the patient in adult or child mode.

[0021] Furthermore, the ventilation hood 1 includes: a hood body 11, a rubber ring 12, a straightening body 13, a buffer ring 14, and an air inlet 15; Among them, a rubber ring 12 is provided at one end of the cover 11, and an air inlet 15 is provided at the other end. A straightener 13 is fitted on the outer wall of the cover 11, and a buffer ring 14 is provided at the end of the straightener 13 away from the cover 11. A first control valve 151 is provided inside the air inlet 15, and multiple second control valves 152 are provided on the side wall of the air inlet 15.

[0022] In this embodiment, please refer to Figure 2 As shown, the cover 11 adopts a semi-ellipsoidal structure with an internal cavity. The contour of its connection end with the rubber ring 12 is adapted to the contour of the patient's face, allowing the rubber ring 12 to naturally conform to the patient's face after assembly, effectively preventing gas leakage during inhalation and exhalation. It should be noted that... Figure 2 The outline of the rubber ring 12 mounting end shown is only an exemplary structure, and the outline specification can be changed to fit the facial contour characteristics of different groups of people.

[0023] In this embodiment, the chin support 13 is an irregularly shaped structure with a built-in cavity. The cavity contour matches the contour of the patient's chin, providing full-coverage support. It should be noted that... Figure 2 The structure of the chin support 13 shown is one embodiment, and the prefabricated adaptive chin support 13 structure can be replaced according to the differences in the outer contour of the chin of different patients.

[0024] For a preferred embodiment, please refer to Figure 1 and Figure 2 As shown, the operation procedure of this device is as follows: The operator holds the outer wall of the handheld component 2 with one hand, aligns the stabilizing body 13 with the patient's chin, and completely covers the patient's chin. Then, using the handheld component 2 as a fulcrum, the operator can easily lift the patient's face upwards with the support of the stabilizing body 13 against the patient's chin. Simultaneously, the cavity of the mask 11 is placed against the patient's mouth and nose (the weight of the handheld component 2 acts on the mask 11, promoting a good seal between the mask 11 and the mouth and nose), completing the precise positioning and airway opening operation before ventilation. Afterwards, the operator can press the operation button 6 with one hand while holding the handheld component 2 to start the device and select the appropriate ventilation mode. The operation mode of this invention breaks through the operational limitations of traditional EC techniques, requiring only one person and one hand to complete the entire assisted ventilation operation. The operation procedure is simple and efficient, enabling standardized single-person assisted ventilation for different populations such as children and adults, significantly improving the convenience and versatility of clinical operation.

[0025] Furthermore, the battery compartment 3 includes: a first compartment body 31, a mounting shell 32, a battery pack 33, and a mounting plate 34; Among them, the first compartment 31 is mounted on the inner wall of the handheld part 2 by multiple mounting plates 34 on one side, and a mounting shell 32 is provided inside the first compartment 31, and a battery pack 33 is installed inside the mounting shell 32. The first compartment 31 has an opening and closing door at one end.

[0026] Furthermore, the gas cylinder compartment 4 includes: a second compartment 41, a gas outlet 42, a gas cylinder 43, a gas outlet pipe 44, and a connecting frame 45; The second chamber 41 has an air outlet 42 at one end and a screw cap at the other end. A gas cylinder 43 is installed inside the second chamber 41. An air outlet pipe 44 is installed at one end of the gas cylinder 43. The outer wall of the air outlet pipe 44 is matched with the inner wall of the air outlet 42. The second compartment 41 is connected to the end of the first compartment 31 away from the mounting plate 34 via multiple connecting brackets 45; The air outlet 42, the air outlet pipe 44, and the air inlet 15 are arranged coaxially.

[0027] In this embodiment, please refer to Figure 3 As shown, before performing assisted ventilation, the operator must perform the following preparatory steps: First, open the hinged door of the mounting housing 32, pre-install the battery pack 33 into the mounting housing 32, and close the hinged door after assembly. Similarly, unscrew the cap of the second chamber 41, place the gas cylinder 43 into the preset mounting position of the second chamber 41, and after the gas cylinder 43 is in place, its outlet pipe 44 can pass through the outlet port 42 opened on the side wall of the second chamber 41 and extend outward. The gas cylinder 43 has a built-in oxygen generating component, which can continuously generate oxygen through the power supplied by the battery pack 33 and deliver it through the outlet pipe 44 to achieve continuous assisted ventilation for the patient. The battery pack 33 also provides stable power support for the display screen 5 and all other electrical components.

[0028] As a preferred embodiment, the present invention adopts an integrated power and oxygen supply structure design, avoiding the complex external piping (such as oxygen hoses, power cables, etc.) required by traditional assisted ventilation equipment, thus simplifying the external connection of the device. During operation, there are no extraneous pipes around the operator's hands, effectively reducing obstacles in the operating space. This not only improves the accuracy of the operation but also helps to ensure the smooth implementation of assisted ventilation, thereby optimizing the assisted ventilation effect on the patient.

[0029] Furthermore, the handheld component 2 includes: an upper partition 21, a lower partition 22, a pressure control area 23, a discharge area 24, a pressure control outlet 25, an exhaust outlet 26, an installation area 27, and a top cover 28; Among them, the end of the handheld part 2 away from the ventilation hood 1 is provided with an openable top cover 28, and the handheld part 2 is provided with an upper partition 21 and a lower partition 22. An installation area 27 is formed between the upper partition 21 and the top cover 28, a pressure control area 23 is formed between the upper partition 21 and the lower partition 22, and a discharge area 24 is formed between the lower partition 22 and the ventilation hood 1. The handheld device 2 has a pressure control outlet 25 on the side wall of the pressure control zone 23, and an exhaust outlet 26 on the side wall of the handheld device 2 in the discharge zone 24. The battery compartment 3 and the gas cylinder compartment 4 are located in the installation area 27. The gas outlet pipe 44 passes through the upper partition 21 and connects to the pressure control area 23. The gas inlet 15 passes through the lower partition 22 and connects to the pressure control area 23. Emission control mechanism 7 is installed in emission zone 24.

[0030] In this embodiment, please refer to Figure 4 As shown, after the gas cylinder 43 is installed, its outlet pipe 44 passes through the outlet 42 of the second chamber 41 and is sealed to the pressure control zone 23 inside the handheld device 2. A flow control element is installed inside the outlet pipe 44. This flow control element is electrically connected to the operation button 6, allowing the operator to switch between adult and child modes by triggering the operation button 6. Specifically, the control signal output by the operation button 6 drives the flow control element to change the flow cross-sectional area at the connection between the outlet pipe 44 and the pressure control zone 23, thereby precisely controlling the oxygen output flow rate. A larger flow cross-sectional area corresponds to a higher flow rate, suitable for adult mode; a smaller flow cross-sectional area corresponds to a lower flow rate, suitable for child mode.

[0031] In a preferred embodiment, this invention can achieve precise oxygen supply in both adult and pediatric modes based on the physiological characteristics of patients of different age groups. For adult patients, it can deliver high-flow oxygen to meet their respiratory metabolic needs, while for pediatric patients with narrow airways, it can precisely deliver gentle, low-flow oxygen, avoiding problems such as oxygen toxicity and lung damage caused by excessive oxygen supply. At the same time, it simplifies clinical procedures, eliminating the need for operators to frequently change oxygen supply devices or repeatedly adjust parameters.

[0032] Furthermore, the air inlet 15 is connected to the pressure control zone 23 through the first control valve 151, and the air inlet 15 is connected to the discharge zone 24 through multiple second control valves 152.

[0033] In this embodiment, both the first control valve 151 and the second control valve 152 are one-way valves. The first control valve 151 can only allow gas to flow from the pressure control zone 23 into the hood 11, and the second control valve 152 can only allow gas to flow from the hood 11 into the discharge zone 24.

[0034] In this embodiment, please refer to Figure 4 As shown, oxygen supplied by cylinder 43 enters the pressure control zone 23 through outlet pipe 44 and is evenly distributed. The pressure control outlet 25 helps to maintain a stable oxygen pressure within the pressure control zone 23. The oxygen then enters the inlet 15 through the first control valve 151 and is further evenly distributed within the cavity of the mask 11 before being inhaled by the patient. Exhaled gas flows from the cavity of the mask 11 into the inlet 15 and then flows through the second control valve 152 into the outlet zone 24 for even distribution. After even distribution, the exhaled gas is stably discharged outside the device through the exhaust outlet 26 under the action of the control and exhaust mechanism 7.

[0035] It should be noted that the present invention has a heating element in the pressure control zone 23. The heating element is a common electric heating component, which can heat the oxygen inhaled by the patient and improve the patient's comfort.

[0036] Furthermore, the control and discharge mechanism 7 includes: a column housing 71, a support column 72, a first control and discharge component 73, a second control and discharge component 74, an inlet 75, and an outlet 76; Among them, a support column 72 is provided in the center of the internal structure 71, the outer wall of the column 71 is connected to the inner wall of the discharge area 24 of the handheld part 2, an air inlet 15 is provided through the inside of the support column 72, and multiple first control discharge components 73 and multiple second control discharge components 74 are arranged around the outer wall of the support column 72, and the multiple first control discharge components 73 and multiple second control discharge components 74 occupy one half of the circumference of the outer wall of the support column 72 respectively; An inlet 75 is provided at one end of the column housing 71 near the vent 1, and an outlet 76 is provided on the side wall of the column housing 71. The discharge area 24 is connected to the air intake area between the first control exhaust assembly 73 and the second control exhaust assembly 74 adjacent to each other in the column housing 71 through the inlet 75. The exhaust port 26 is connected to the exhaust area between the first control exhaust assembly 73 and the second control exhaust assembly 74 adjacent to the air intake area in the column housing 71 through the outlet 76.

[0037] Furthermore, the first control and arrangement component 73 includes: a first column 731, a first fixing plate 732, and a first rotating plate 733; The outer wall of the first column 731 is connected to the outer wall of the support column 72 via the first fixing plate 732, and the outer wall of the other side is rotatably provided with the first rotating plate 733 via the first rotating member 8.

[0038] Furthermore, the second control assembly 74 includes: a second column 741, a second fixing plate 742, and a second rotating plate 743; Among them, the outer wall of one side of the second column 741 is connected to the outer wall of the support column 72 through the second fixing plate 742, and the outer wall of the other side is rotatably provided with the second rotating plate 743 through the second rotating member 9; The distance between the rotation center of the second rotating plate 743 and the center of the support column 72 is less than the distance between the rotation center of the first rotating plate 733 and the center of the support column 72. The second rotating component 9 has the same structure as the first rotating component 8 and is arranged symmetrically.

[0039] In this embodiment, please refer to Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, exhaled air will enter the intake area inside the column housing 71 through inlet 75 (e.g., Figure 7(As shown in area A), then two different flow paths matching child mode and adult mode can be performed for exhaust operation, finally entering the exhaust area (as shown in area A). Figure 7 (As shown in the area at location B) and discharged outside the device through outlet 76 and exhaust port 26.

[0040] Furthermore, the first rotating component 8 includes: a connecting block 81, a rotating cavity 82, a slide rail 83, and a first spring 84; One end of the connecting block 81 is set on the outer wall of the first column 731, and the other end is provided with a rotating cavity 82. The first rotating plate 733 is rotatably set in the rotating cavity 82 via the slide rail 83. A first spring 84 is provided in the rotating cavity 82, connecting the side wall of the first rotating plate 733 and the inner wall of the rotating cavity 82. The spring constant of the second spring located inside the second rotating member 9 is greater than the spring constant of the first spring 84 located inside the first rotating member 8.

[0041] In this embodiment, please refer to Figure 6 , Figure 8 , Figure 9 and Figure 10 As shown, the rotation of the first rotating plate 733 and the second rotating plate 743 respectively connects the flow paths of the child mode and the adult mode. Specifically: Under the thrust of exhaled air, the first rotating plate 733 rotates along the outer wall of the first column 731 via the slide rail 83 and compresses the first spring 84. At this time, the end of the first rotating plate 733 away from the first column 731 will disengage from the column shell 71, creating a first distance between this end of the first rotating plate 733 and the inner wall of the column shell 71, thereby connecting the flow path of the child mode. Similarly, the rotation principle of the second rotating plate 743 is the same (a second distance is created between the end of the second rotating plate 743 away from the second column 741 and the inner wall of the column shell 71, and the second distance is greater than the first distance). It should be noted that the rotation direction of the first rotating plate 733 is clockwise, and the rotation direction of the second rotating plate 743 is counterclockwise. Therefore, the second rotating component 9 and the first rotating component 8 are symmetrically arranged (e.g., Figure 6 and Figure 10 (as shown in the image).

[0042] For a preferred embodiment, please refer to Figure 6 and Figure 8As shown, when the device enters child mode, the exhaled air entering the air intake area will be discharged along the flow path of child mode. The exhaled air in the air intake area will simultaneously exert a thrust on the first rotating plate 733 and the second rotating plate 743. Since the amount of exhaled air produced per unit time in this mode is relatively small, as the amount of exhaled air in the air intake area gradually increases, the thrust of the exhaled air will first reach the compression force requirement of the first spring 84 with a smaller stiffness coefficient. At this time, the exhaled air can only drive the first rotating plate 733 to rotate (compressing the first spring 84 with a smaller stiffness coefficient), thus starting to connect the flow path in this mode. The exhaled air will enter from the air intake area as... Figure 8 As shown in region C, with the gradual increase of exhaled air in this region, it will enter as... Figure 8 As the exhaled air in area D increases, it will enter the exhaust zone and eventually be discharged outside the device.

[0043] For a preferred embodiment, please refer to Figure 9 and Figure 10 As shown, when the device enters adult mode, the exhaled air entering the air intake zone will be discharged along the flow path of adult mode. The exhaled air in the air intake zone will simultaneously exert a thrust on the first rotating plate 733 and the second rotating plate 743. Because a large amount of exhaled air is generated per unit time in this mode, as the amount of exhaled air in the air intake zone gradually increases, the thrust of the exhaled air can meet the compression force requirement of the second spring with a larger stiffness coefficient. At this time, the exhaled air drives the second rotating plate 743 to rotate (compressing the second spring with a larger stiffness coefficient), thereby opening the flow path in this mode. The exhaled air will enter from the air intake zone as... Figure 9 As shown in region E, with the gradual increase of exhaled air in this region, it will enter as... Figure 9 As the exhaled air in area F increases, it will enter the exhaust zone and eventually be discharged outside the device.

[0044] It should be noted that when performing the exhalation operation in adult mode, the force of the exhaled air can also drive the first rotating plate 733 to rotate. Therefore, the exhaled air in this mode can also flow through the flow path in child mode at the same time.

[0045] In a preferred embodiment, the present invention, through the differentiated rotation design of the first rotating plate 733 and the second rotating plate 743, and utilizing the first spring 84 and the second spring with different stiffness coefficients to match the exhaled gas thrust thresholds in both child and adult modes, achieves precise matching between exhaled gas flow rate and exhaust mode. The first distance formed by the rotation of the first rotating plate 733 and the second distance formed by the rotation of the second rotating plate 743 (the second distance being greater than the first distance) correspond to the conduction conditions of the low-flow child exhalation path and the high-flow adult exhalation path, respectively, thus achieving precise matching between exhaled gas flow rate and exhaust mode. In child mode, the exhaled gas thrust can only connect the flow path in this mode; in adult mode, the exhaled gas thrust can connect the flow path in this mode while also being compatible with the flow path in child mode. Furthermore, both flow paths follow a graded flow path of "intake zone, transition zone (C zone → D zone in child mode, E zone → F zone in adult mode), exhaust zone," rather than direct exhaust. It can buffer and guide the airflow of exhaled gas, avoiding pressure fluctuations within the device caused by sudden changes in airflow. At the same time, it solves the risk of re-inhalation of exhaled gas caused by untimely exhaust of exhaled gas in adult mode, ensuring the safety and comfort of the patient's breathing process.

[0046] It should be noted that the elastic reset of the first spring 84 and the second spring can automatically close the exhaust path after exhalation stops, preventing backflow of external gas and further ensuring the safety of the patient.

[0047] For a preferred embodiment, please refer to Figure 11 As shown, in another embodiment of this application, a corrugated pipe 10 is used instead of the ventilation mask 1. One end of the corrugated pipe 10 is directly connected to the pressure control zone 23, and the other end is connected to the endotracheal tube 101 located in the patient's mouth. The inlet 75 must be sealed. When the gas cylinder 4 starts supplying gas, the gas, after being evenly distributed through the pressure control zone 23, will directly enter the endotracheal tube 101 along the corrugated pipe for the patient to inhale. This embodiment of the application can achieve precise guided gas supply for patients who have already had the endotracheal tube 101 placed, avoiding excessive dispersion of gas within the ventilation mask 1, which would make it difficult for the gas to enter the endotracheal tube 101 in a concentrated state. It should be noted that a third control valve 102 is provided on the corrugated pipe 10. The third control valve 102 is a commonly used one-way valve that prevents backflow and allows gas to be expelled. It needs to be able to allow gas to flow unidirectionally from the pressure control zone 23 along the corrugated pipe 10 into the endotracheal tube 101, and to expel the patient's exhaled gas.

[0048] In practice, the operator holds the outer wall of the handheld component 2 with one hand, aligning the stabilizing body 13 with the patient's chin and ensuring it completely covers the chin. Then, using the handheld component 2 as a fulcrum, and with the support of the stabilizing body 13 against the patient's chin, the operator can easily lift the patient's face upwards. Simultaneously, the hollow portion of the mask 11 is smoothly placed against the patient's mouth and nose, completing the precise positioning and airway opening before ventilation. Afterward, the operator can press the operation button 6 with one hand while holding the handheld component 2 to activate the device and select the appropriate ventilation mode.

[0049] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An assisted ventilation apparatus, characterized by: Include: Ventilation cover (1), handheld piece (2), battery compartment (3), gas cylinder compartment (4), display screen (5) and operation button (6); Among them, the ventilation cover (1) is detachably mounted with the handheld piece (2), the inner wall of the handheld piece (2) is mounted with the battery compartment (3), one side of the battery compartment (3) is provided with the gas cylinder compartment (4), and the outer wall of the handheld piece (2) is provided with the display screen (5) and a plurality of operation buttons (6).

2. A ventilator according to claim 1, wherein: The ventilation cover (1) comprises: cover body (11), rubber ring (12), centralizer (13), buffer ring (14) and air inlet (15); Among them, the cover body (11) is provided with the rubber ring (12) at one end, and the air inlet (15) is opened at the other end, the outer wall of the cover body (11) is sleeved with the centralizer (13), and the end of the centralizer (13) away from the cover body (11) is provided with the buffer ring (14); The first control valve (151) is arranged in the air inlet (15), and a plurality of second control valves (152) are arranged on the side wall of the air inlet (15).

3. A ventilator according to claim 2, wherein: The battery compartment (3) comprises: first compartment body (31), mounting shell (32), battery pack (33) and mounting plate (34); Among them, the first compartment body (31) is installed on the inner wall of the handheld piece (2) through a plurality of mounting plates (34) on one side, the mounting shell (32) is arranged in the first compartment body (31), and the battery pack (33) is arranged in the mounting shell (32); The first compartment body (31) is provided with a hinged door at one end.

4. A ventilator according to claim 3, wherein: The gas cylinder compartment (4) comprises: second compartment body (41), gas outlet (42), gas cylinder (43), gas outlet pipe (44) and connecting frame (45); Among them, the second compartment body (41) is provided with the gas outlet (42) at one end, and the other end is provided with a screw cap, the second compartment body (41) is provided with the gas cylinder (43) inside, the gas cylinder (43) is provided with the gas outlet pipe (44) at one end, and the outer wall of the gas outlet pipe (44) is matched with the inner wall of the gas outlet (42); The second compartment body (41) is connected with the end of the first compartment body (31) away from the mounting plate (34) through a plurality of connecting frames (45); The gas outlet (42), the gas outlet pipe (44) and the air inlet (15) are coaxially arranged.

5. A ventilator according to claim 4, wherein: The handheld piece (2) comprises: upper partition (21), lower partition (22), pressure control area (23), discharge area (24), pressure control discharge port (25), exhaust discharge port (26), mounting area (27) and top cover (28); The hand-held piece (2) is provided with an openable top cover (28) at one end away from the breather cover (1), the hand-held piece (2) is provided with the upper partition plate (21) and the lower partition plate (22), the upper partition plate (21) and the top cover (28) form the installation area (27), the upper partition plate (21) and the lower partition plate (22) form the pressure control area (23), and the lower partition plate (22) and the breather cover (1) form the discharge area (24); The side wall of the hand-held piece (2) in the pressure control area (23) is provided with the pressure control discharge port (25), and the side wall of the hand-held piece (2) in the discharge area (24) is provided with the exhaust discharge port (26); The battery compartment (3) and the gas cylinder compartment (4) are located in the installation area (27), the gas outlet pipe (44) penetrates through the upper partition plate (21) and communicates with the pressure control area (23), and the gas inlet (15) penetrates through the lower partition plate (22) and communicates with the pressure control area (23); The discharge area (24) is provided with a control discharge mechanism (7).

6. A ventilator according to claim 5, wherein: The gas inlet (15) communicates with the pressure control area (23) through the first control valve (151), and the gas inlet (15) communicates with the discharge area (24) through a plurality of second control valves (152).

7. A ventilator according to claim 5, wherein: The control discharge mechanism (7) comprises a column shell (71), a support column (72), a first control discharge assembly (73), a second control discharge assembly (74), an inlet (75) and an outlet (76); The support column (72) is provided inside the column shell (71), the outer wall of the column shell (71) is connected with the inner wall of the discharge area (24) of the hand-held piece (2), the gas inlet (15) penetrates through the inside of the support column (72), a plurality of first control discharge assemblies (73) and a plurality of second control discharge assemblies (74) are circumferentially arranged on the outer wall of the support column (72), and the plurality of first control discharge assemblies (73) and the plurality of second control discharge assemblies (74) respectively occupy one half of the circumference of the outer wall of the support column (72); The column shell (71) is provided with the inlet (75) at one end close to the breather cover (1), the column shell (71) is provided with the outlet (76) on the side wall, the discharge area (24) communicates with the gas inlet area between the adjacent first control discharge assembly (73) and second control discharge assembly (74) in the column shell (71) through the inlet (75), and the exhaust discharge port (26) communicates with the gas exhaust area between the adjacent first control discharge assembly (73) and second control discharge assembly (74) in the column shell (71) through the outlet (76).

8. A ventilator according to claim 7, wherein: The first control discharge assembly (73) comprises a first vertical column (731), a first fixed plate (732) and a first rotating plate (733). The outer wall of one side of the first stand (731) is connected with the outer wall of the support column (72) through the first fixed plate (732), and the outer wall of the other side is provided with the first rotating plate (733) through the first rotating part (8).

9. A ventilatory assist device according to claim 8, wherein: The second row control assembly (74) comprises a second stand (741), a second fixed plate (742) and a second rotating plate (743). The outer wall of one side of the second stand (741) is connected with the outer wall of the support column (72) through the second fixed plate (742), and the outer wall of the other side is provided with the second rotating plate (743) through the second rotating part (9). The distance between the rotating center of the second rotating plate (743) and the center of the support column (72) is less than the distance between the rotating center of the first rotating plate (733) and the center of the support column (72). The second rotating part (9) is the same as and symmetrically arranged with the first rotating part (8).

10. A ventilatory assist device according to claim 9, wherein: The first rotating part (8) comprises a connecting block (81), a rotating cavity (82), a sliding rail (83) and a first spring (84). One end of the connecting block (81) is arranged on the outer wall of the first stand (731), and the other end is provided with the rotating cavity (82), the first rotating plate (733) is rotatably arranged in the rotating cavity (82) through the sliding rail (83), and the first spring (84) is arranged in the rotating cavity (82) and connected between the side wall of the first rotating plate (733) and the inner wall of the rotating cavity (82). The stiffness coefficient of the second spring in the second rotating part (9) is greater than the stiffness coefficient of the first spring (84) in the first rotating part (8).

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