Non-contact ventilation system for critical respiratory patients in emergency treatment

Abstract

The invention provides an emergency breathing critical patient non-contact ventilation system which comprises a tiling unit, an end wall unit, a film covering assembly, an air path control system and a sterilization ventilation system, and an air bag edge strip on each side of the tiling unit comprises an isolation cavity and is provided with a series of air holes. The front side edge and the rear side edge of the rectangular frame are connected with the linear bottom edges of the arch-shaped wall plates through flexible connecting belts correspondingly, the arc-shaped top edge is connected with an arc-shaped air bag and provided with a series of air holes, side attaching edge strips are arranged on the two sides of the film covering assembly, and end attaching edge strips are arranged at the two ends of the film covering assembly. The gas circuit control system comprises a left suction pipe, an end suction pipe, a right suction pipe, a negative pressure pipeline and a concealed pipe, all the suction pipes are gathered in the sealing cavities and are respectively provided with an electromagnetic valve, and all the sealing cavities are further connected with the negative pressure pipeline. According to the isolated ventilation system, the isolated ventilation system can be formed through negative pressure suction during use, the isolated ventilation system can be attached to the ground or a bed surface in a non-use state or a semi-open state, and the size is compressed as much as possible.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of medical sealing ventilation system, and particularly relates to a non-contact ventilation system for emergency respiratory critical patients, which is used for preventing the spread of infectious diseases. BACKGROUND

[0002] During the period of high incidence of infectious diseases, medical institutions need to take some special measures to protect medical staff and other patients from being infected. The risk of infectious diseases of emergency respiratory critical patients is higher, and some special devices need to be used for isolation and ventilation. During on-site rescue and transportation in some emergency situations, wounded persons need to be protected by portable multifunctional rescue, protection and isolation equipment in various harmful or adverse environments. For example, in the case of external environment pollution such as toxic chemical leakage and chemical weapon attack, the wounded persons need to be quickly protected against chemical warfare, and the infectious patients need to be isolated against infection. In cold weather conditions, the low temperature of the wounded persons with hemorrhagic shock needs to be raised for warming and rescue measures. For high fever wounded persons such as heatstroke, heatstroke and brain injury, physical cooling rescue means are needed.

[0003] At present, the research and development field of portable multifunctional wounded rescue, protection and isolation special equipment in China is far behind that in the United States, Germany and other developed countries in Europe and America. The isolation equipment must be used with an effective ventilation system, and the existing rescue equipment technology is mainly reflected in the fact that the non-contact isolation ventilation system is not perfect. The wounded persons in the state of first aid or isolation or the patients with infectious diseases cannot quickly build an isolation environment and effectively ventilate in the isolation environment, resulting in long-time exposure, increased infection and secondary injury, and even the spread of the source of infection, which brings more passivity to the rescue work. SUMMARY

[0004] In view of the problems of the traditional ventilation system, such as large volume, inconvenience to use, easy to break, pollution and air leakage, the present application provides a non-contact ventilation system for emergency respiratory critical patients to solve the above problems.

[0005] The solution adopted by this invention to solve its technical problem is: a non-contact ventilation system for critically ill patients with respiratory illnesses in the emergency department, comprising a flat-lay unit, an end-wall unit, a membrane assembly, an airway control system, and a disinfection and ventilation system. The flat-lay unit includes a frame, airbag side strips, and isolation chambers. Airbag side strips are located on the upper sides of the left and right sides of the rectangular frame, and each side airbag side strip includes multiple longitudinally arranged isolation chambers. A series of air holes are evenly distributed on the upper side of each isolation chamber. The end-wall unit includes an arched wall panel and an arc-shaped airbag. Each arched wall panel includes a straight bottom edge and an arc-shaped top edge. The straight bottom edge of the arched wall panel is connected to the front and rear sides of the rectangular frame via flexible connecting strips. An arc-shaped airbag is connected to the arc-shaped top edge, and a series of air holes are evenly distributed on the upper side of the arc-shaped airbag. The membrane assembly includes a top membrane and side fittings. Side strips and end-fitting strips are attached to both sides of the rectangular top membrane and to both ends. Multiple side isolation grooves are located below the side strips, and multiple end isolation grooves are located below the end strips. In use, the side strips are attached to the upper side of the airbag side strips, and the end strips are attached to the upper side of the arc-shaped airbag. The airway control system includes a left suction tube, an end suction tube, a right suction tube, a negative pressure pipe, and a concealed pipe. The isolation grooves of the two side strips are connected to the left and right suction tubes, respectively. The two end strips are connected through the concealed pipe. The end isolation groove of any end strip is connected to an end suction tube. All suction tubes converge in a sealed cavity and are each equipped with a solenoid valve. Each sealed cavity is also connected to a negative pressure pipe.

[0006] Lay the flat unit flat on the bottom surface or bed surface and erect the end wall units at both ends. Then, cover the flat unit and end wall units respectively with the covering assembly, ensuring that the side sealing strips are attached to the upper side of the airbag strips and the end sealing strips are attached to the upper side of the curved airbag, ensuring that the positions are corresponding. Control the air path control system so that the sides and ends of the covering assembly can be attracted to the upper sides of the flat unit and end wall units respectively, forming a sealed chamber. The air path can be selectively controlled to open to the left or right, allowing part of the covering assembly to detach from the flat unit while the other part remains connected. Alternatively, the air path can be fully opened, completely detaching the covering assembly from the flat unit.

[0007] Furthermore, the frame includes left and right sides and front and back sides, each side being made of flexible or semi-flexible material. The inner side of the rectangular frame is connected to a backing film, and a bed sheet is laid on the backing film.

[0008] Furthermore, it also includes a support assembly, which is an arched rod that matches the arc-shaped top edge contour of the arched wall panel. The inner walls of the left and right sides of the rectangular frame are fixed with slots, and the two ends of the arched rod are secured in the corresponding slots.

[0009] Furthermore, pressure plates are fixed to the inner side of the side-fitting strip, and each pressure plate has dot-like anti-slip textures underneath. When the laminating assembly is attached and adhered to the flat-lay unit, each pressure plate is used to press the bed sheet and keep the bed sheet in shape. The pressure plates and the slots are staggered.

[0010] Furthermore, each suction tube is connected to a three-way solenoid valve at its end. The first branch of the three-way solenoid valve is located inside the sealed cavity, while the second branch extends outside the sealed cavity. In its natural state, the first branch of the three-way solenoid valve is open while the second branch is closed. When the three-way solenoid valve is energized, the first branch is closed while the second branch is open. The controller's control terminal is connected to each three-way solenoid valve to control their opening and closing. The controller's signal input terminal is connected to the corresponding buttons on the control panel. When a corresponding button is pressed, the controller executes a venting command.

[0011] Furthermore, the disinfection and ventilation system is a closed-loop circulating filtration system. For example, the functional holes in the end-wall units are used to connect to circulation pipelines, and air pumps and filter units are installed on these pipelines. The filter units consist of activated carbon and HEPA filters, which can filter viruses and bacteria from the air and provide fresh air to the patients. The protective clothing is made of reusable materials, is removable, and easy to clean.

[0012] Furthermore, the disinfection and ventilation system is an open disinfection and ventilation system, which includes a disinfection air supply pipe, a clean air supply pipe, and an exhaust pipe. The disinfection air supply pipe is connected to the disinfection gas, and the clean air supply pipe is connected to the sterile air source. First, the disinfection gas is pumped into the sealed chamber through the disinfection air supply pipe for sterilization. After the disinfection is completed, sterile clean air is pumped into the sealed chamber through the clean air supply pipe.

[0013] Furthermore, the top film of the coating assembly is made of transparent material, or it is made of non-transparent material but has a film window installed at an appropriate position. The film window includes a transparent film and an adhesive frame. An opening is made on the upper side of the fixed mold and an adhesive flat hole is added between the edge of the opening and the edge of the transparent film. Functional holes are opened on the transparent film, and sealing gaskets are pasted on the outside of the functional holes.

[0014] The beneficial effects of the present invention are as follows: The air-sealing system of the present invention can quickly draw air out to form a sealed space when in use. Since the membrane component is a flexible structure, it can fit against the bed or ground when not in use or in a semi-open state, thus minimizing the volume.

[0015] The bottom liner membrane of this invention is simultaneously adhered to multiple layers of negative pressure at each edge, allowing for rapid removal and installation, excellent sealing, and preventing air leakage and contamination. Its flexible material also exhibits excellent tear resistance.

[0016] Compared with traditional isolation devices for critically ill patients with respiratory illnesses in emergency departments, this invention has made improvements in terms of creating a rapid closed environment through negative pressure suction and using a ventilation system to achieve airflow circulation within the closed environment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the usage state of the isolation ventilation system of the present invention; Figure 2 yes Figure 1 A three-dimensional structural diagram of the membrane-coated module; Figure 3 This is a schematic diagram showing the relationship between the flat tile unit and the end wall unit; Figure 4 yes Figure 3 A top-view structural diagram; Figure 5 This is a schematic diagram of the connection relationship of a folding support rod; Figure 6 This is the logic control diagram of the gas path control system; Figure 7 This is a schematic diagram of the control panel structure; Figure 8 This is the block diagram of the control system of this invention.

[0018] Numbering in the diagram: Flat unit 1, Frame 11, Airbag edge strip 12, Isolation chamber 13, Air hole 14, Sheet 15, Backing film 16, End wall unit 2, Arched wall panel 21, Flexible connecting strap 22, Arc-shaped airbag 23, Air hole 24, Functional hole 25, Support assembly 3, Slot 31, Folding support rod 32, Rear axle hole 33, Front axle hole 34, Support base 35, Support groove 36, Covering assembly 4, Top film 41, Side bonding edge strip 42, Side 43. Partial isolation groove, 44. End bonding strip, 45. End isolation groove, 46. Pressure plate, 5. Air circuit control system, 51. Left suction pipe, 52. End suction pipe, 53. Right suction pipe, 54. Electromagnetic control valve group, 55. Control panel, 56. Negative pressure pipeline, 57. Concealed pipe, 6. Disinfection and ventilation system, 61. Disinfection air supply pipe, 62. Cleaning air supply pipe, 63. Exhaust pipe, 7. Membrane window, 71. Transparent membrane, 72. Adhesive frame, 73. Functional hole, 74. Sealing gasket. Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] One such Figure 1 The non-contact isolation ventilation system for critically ill patients in the emergency respiratory department shown includes a flat unit 1, an end wall unit 2, a support component 3, a membrane component 4, an airway control system 5, a disinfection and ventilation system 6, and a membrane window 7, etc.

[0021] Specifically, such as Figure 3 andFigure 4 As shown, the flat-lay unit 1 includes a frame 11, an airbag edge strip 12, an isolation cavity 13, air holes 14, a sheet 15, and a backing film 16. The frame 11 is rectangular, comprising left and right sides and front and back sides, each side made of a flexible or semi-flexible material, such as rubber or soft plastic. The backing film 16 is connected to the inner side of the rectangular frame 11, allowing the sheet 15 to be laid on top of it. The sheet is a reusable, washable fabric material with waterproof, antibacterial, and pressure-resistant properties, effectively preventing contamination and tearing.

[0022] There are airbag side strips 12 on the upper sides of the left and right sides of the rectangular frame 11, such as Figure 3 As shown in the middle section, each side airbag strip 12 includes multiple longitudinally arranged isolation chambers 13. Three isolation chambers 13 are shown in the figure, and both ends of each isolation chamber are sealed. A series of air holes 14 are evenly distributed on the upper side of each isolation chamber 13.

[0023] like Figure 3 As shown, the end wall unit 2 includes an arched wall panel 21, a flexible connecting strip 22, an arc-shaped airbag 23, air holes 24, and functional holes 25. Each arched wall panel 21 includes a straight bottom edge and an arc-shaped top edge. The straight bottom edge of the arched wall panel 21 is connected to the front and rear sides of the rectangular frame 11 via the flexible connecting strip 22. An arc-shaped airbag 23 is connected to the arc-shaped top edge, and a series of air holes 24 are evenly distributed on the upper side of the arc-shaped airbag 23. Functional holes 25 can also be provided on the arched wall panel 21 and sealed with caps as spare holes, or connected to functional pipes, such as connecting to a ventilation system. When a patient in the sealed chamber needs to wear an oxygen mask, the functional holes 25 can be used to assemble oxygen tubing. The functional holes can also be used for patient infusion and other functional applications.

[0024] like Figure 5As shown, the support assembly 3 includes a slot 31, a folding support rod 32, a rear axle hole 33, a front axle hole 34, a support base 35, and a support groove 36. The slot 31 is fixed to the inner walls of the left and right sides of the rectangular frame 11. Each folding support rod 32 includes a rear axle hole 33 and a front axle hole 34. The front and rear axle holes of adjacent folding support rods 32 are hinged together by pins. A support base 35 is fixed below the rear axle hole 33, and a support groove 36 is provided below the front axle hole 34. When two adjacent folding support rods 32 are hinged and flipped forward, the adjacent support base 35 and support groove 36 can match and support each other, thereby limiting the excessive flipping of the two folding support rods 32. Multiple folding support rods 32 are sequentially hinged end to end to form a support assembly. When the assembly is flipped forward, it forms a mutually supporting arched body. When flipped backward, it can become a flexible body that can be rolled up or draped backward over the bedside or laid flat backward on the bottom surface. Furthermore, recessed grooves are provided on the end faces of the support base 35 and the support groove 36, and magnets 37 are installed in each groove. This allows any adjacent folding support rods 32 to be firmly attracted together when each folding support rod 32 rotates in the forward direction, forming a stable support relationship. Furthermore, a through-hole adjustment hole 38 is provided on the rear side of the groove in the support base 35, with an adjustment screw 39 threaded into its internal thread. By turning the adjustment screw, the included angle range of adjacent folding support rods can be changed, thereby altering the overall span of the support assembly 3. By adding or removing corresponding folding support rods 32 and adjusting the appropriate support angle, it can be adapted to different types of flat-lay units.

[0025] The coating assembly 4 includes a top film 41, side bonding strips 42, side isolation grooves 43, end bonding strips 44, end isolation grooves 45, and a pressing sheet 46, as shown. Figure 2 As shown, side-fitting strips 42 are connected to both sides of the rectangular top membrane 41, and end-fitting strips 44 are connected to both ends. Multiple side-isolating grooves 43 are located below the side-fitting strips 42, as shown... Figure 2 In the middle section, there are multiple end isolation grooves 45 below the end-fitting edge strip 44. During use, the side-fitting edge strip 42 is attached to the upper side of the airbag edge strip 12, and the end-fitting edge strip 44 is attached to the upper side of the arc-shaped airbag 23. When both the side-fitting edge strip 42 and the end-fitting edge strip 44 are under negative pressure, the side-fitting edge strip 42 and the airbag edge strip 12 can be fully fitted together, and the end-fitting edge strip 44 and the arc-shaped airbag 23 can be fully fitted together. When all parts are in a negative pressure suction state, since both the airbag edge strip 12 and the arc-shaped airbag 23 are closed flexible strips, they can appropriately thin with negative pressure suction, allowing the airbag edge strip 12 and the side-fitting edge strip 42 to fit more fully, ensuring a leak-proof seal, and also allowing the end-fitting edge strip 44 of the arc-shaped airbag 23 to fit more fully, ensuring a leak-proof seal.

[0026] Pressure plates 46 are fixed to the inner side of the side-fitting strip 42. Each pressure plate 46 has dot-shaped anti-slip texture on its underside. When the film-coating assembly 4 is attached and attracted to the flat-laying unit 1, each pressure plate 46 is used to press and hold the bed sheet 16 to maintain its shape. Each pressure plate 46 is staggered with the slot 31.

[0027] like Figure 1 The air circuit control system 5 includes a left suction pipe 51, an end suction pipe 52, a right suction pipe 53, an electromagnetic control valve assembly 54, a control panel 55, a negative pressure pipeline 56, and a concealed pipe 57. The isolation grooves of the two side-fitting edge strips 42 are respectively connected to the left suction pipe 51 and the right suction pipe 53. The two end-fitting edge strips 44 are connected through the concealed pipe 57. The end isolation groove of any end-fitting edge strip is connected to the end suction pipe 52. All suction pipes converge in a sealed cavity and are each equipped with a solenoid valve. Each sealed cavity is also connected to a negative pressure pipeline 56. Each solenoid valve is the electromagnetic control valve assembly 54 shown in the figure. Specifically, each suction pipe is connected to a three-way solenoid valve at its end. The first branch of the three-way solenoid valve is located inside the sealed cavity, and the second branch extends outside the sealed cavity. In its natural state, the first branch of the three-way solenoid valve is open while the second branch is closed. When the three-way solenoid valve is energized, the first branch is closed while the second branch is open. The controller's control terminals are connected to each of the three-way solenoid valves to control their opening and closing. The controller's signal input terminals are connected to the corresponding buttons on the control panel 55. When a button is pressed, the controller executes a venting command. Additionally, a solenoid valve is also installed on the extraction pipe 52 and can be controlled to open and close.

[0028] The disinfection and ventilation system 6 can employ either a closed-loop circulation filtration system or an open-loop disinfection and ventilation system. The closed-loop circulation filtration system, for example, utilizes functional holes in the end-wall units to connect circulation pipelines, and installs an air pump and a filter unit on these pipelines. This filter unit consists of a filter assembly filled with activated carbon and HEPA filters, capable of filtering viruses and bacteria from the air and providing fresh air to the patient. The protective clothing is made of reusable materials, is removable, and easy to clean.

[0029] Open-type disinfection and ventilation system, such as Figure 1 As shown, it includes a sterilization air supply pipe 61, a cleaning air supply pipe 62, and an exhaust pipe 63. The sterilization air supply pipe 61 connects to the sterilizing gas, and the cleaning air supply pipe 62 connects to a sterile gas source. First, the sterilizing gas is pumped through the sterilization air supply pipe 61 into the sealed chamber for sterilization. If a patient is inside the sealed chamber, protective measures must be taken, including providing the patient with a breathing mask. After sterilization is complete, sterile clean air is pumped into the sealed chamber through the cleaning air supply pipe 62. The exhaust pipe 63 is typically installed in a functional hole in the opposite end wall unit of the sterilization air supply pipe 61 and the cleaning air supply pipe 62.

[0030] The top film 41 of the coating component 4 is made of transparent material, or it is made of non-transparent material but has a film window 7 installed at an appropriate position, for example... Figure 1 The membrane window 7 shown includes a transparent membrane 71, an adhesive frame 72, functional holes 73, and a sealing gasket 74. Specifically, it has holes on the side of the mold 41, and adhesive flat holes 72 are added between the edge of the holes and the edge of the transparent membrane 71. Examples of adhesive flat holes 72 include Velcro or suction cups, or a bonding structure consisting of the side airbag edge strip 12, the side adhesive edge strip 42, and the suction tubing. Functional holes 73 can also be formed on the transparent membrane 71, and sealing gaskets 74 are attached to the outside of the functional holes 73. The membrane window and its functional holes facilitate observation or examination of patients by doctors.

[0031] In this embodiment of the isolation ventilation system, when using the system, select the model suitable for the patient, lay the flat unit 1 flat on the bottom surface or bed surface, lift up the end wall units 2 at both ends, and assemble the various support components 3. Then, cover the flat unit 1 and the end wall units 2 respectively, ensuring that the side-fitting strips 42 are attached to the upper side of the airbag side strips 12 and the end-fitting strips 44 are attached to the upper side of the arc-shaped airbag 23, and ensuring that the positions are corresponding (a limiting bracket can be set to facilitate docking). Press the control panel. The control panel and control system are distributed as follows: Figure 7 and Figure 8 As shown. When the side-fitting strip 42 and the end-fitting strip 44 are under negative pressure, the side-fitting strip 42 and the airbag strip 12 can be fully fitted together, and the end-fitting strip 44 and the arc-shaped airbag 23 can be fully fitted together. When the full-seal button on the control panel is pressed, the solenoid valve installed on the suction tube 52 is opened by the controller, so that each suction tube can suction simultaneously and maintain a negative pressure state. At this time, the two sides and the ends of the covering assembly 4 can be attracted to the upper side of the flat unit 1 and the end wall unit 2 respectively to form a sealed chamber. In the sealed chamber environment, the above-mentioned disinfection, circulation, or necessary medical procedures can be performed. When the patient needs to leave the chamber or needs special examination, the left or right opening button on the control panel can be pressed to detach part of the covering assembly 4 from the flat unit 1 while the other part is connected to the flat unit 1. Alternatively, when the entire assembly needs to be removed from the sealed chamber, the full opening button on the control panel can be pressed to completely detach the covering assembly 4 from the flat unit 1. Figure 7 The lock / unlock button on the control panel is a safety button; the above button operations can only be performed after the safety is disarmed.

[0032] The non-contact isolation ventilation system for critically ill respiratory patients provided by this invention can be adjusted and varied according to actual needs. For example, the size, materials, structure, and performance of the bed sheets, wall pads, and air delivery system can all be adjusted and varied according to actual needs to better adapt to different patient conditions and environmental requirements.

[0033] The non-contact isolation ventilation system for critically ill respiratory patients provided by this invention can quickly create an isolation zone through negative pressure suction and achieve closed-loop airflow circulation within the isolation zone, effectively preventing the spread of infectious diseases or infection of the injured, reducing safety risks to patients and medical staff, and enhancing the hospital's prevention and control capabilities. This patent has broad application prospects and market value.

[0034] The specific embodiments described above are merely illustrative or explanatory of the principles of the present invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the present invention should be included within the protection scope of the present invention.

Claims

1. A non-contact ventilation system for critically ill patients in the emergency respiratory department, characterized in that: The system includes a flat-lay unit (1), an end-wall unit (2), a membrane assembly (4), an air path control system (5), and a disinfection and ventilation system (6). The flat-lay unit (1) includes a frame (11), airbag side strips (12), and isolation chambers (13). Airbag side strips (12) are located on the upper sides of the left and right sides of the rectangular frame (11). Each airbag side strip (12) includes multiple longitudinally arranged isolation chambers (13). Each isolation chamber (13) has a series of air holes (14) evenly distributed on its upper side. The end-wall unit ( 2) Includes arched wall panels (21) and arc-shaped airbags (23). Each arched wall panel (21) includes a straight bottom edge and an arc-shaped top edge. The straight bottom edge of the arched wall panel (21) is connected to the front and rear sides of the rectangular frame (11) by flexible connecting strips (22). An arc-shaped airbag (23) is connected to the arc-shaped top edge. A series of air holes (24) are evenly distributed on the upper side of the arc-shaped airbag (23). The film-coating assembly (4) includes a top film (41), side bonding strips (42), and end bonding strips (44). The rectangular top membrane (41) is connected to side-fitting strips (42) on both sides and end-fitting strips (44) on both ends. There are multiple side isolation grooves (43) below the side-fitting strips (42) and multiple end isolation grooves (45) below the end-fitting strips (44). In use, the side-fitting strips (42) are attached to the upper side of the airbag strips (12) and the end-fitting strips (44) are attached to the upper side of the arc-shaped airbag (23). The airway control system (5) includes left-side suction. The tube (51), the end suction tube (52), the right suction tube (53) and the negative pressure pipe (56), and the concealed pipe (57) are connected to the isolation grooves of the two side-fitting edge strips (42), respectively, the left suction tube (51) and the right suction tube (53), the two end-fitting edge strips (44) are connected through the concealed pipe (57), the end isolation groove of any end-fitting edge strip is connected to the end suction tube (52), all suction tubes are gathered in the sealed cavity and are respectively equipped with solenoid valves, and each sealed cavity is also connected to the negative pressure pipe (56).

2. The non-contact isolation ventilation system for critically ill emergency respiratory patients according to claim 1, characterized in that: The frame (11) includes left and right sides and front and back sides, each side being made of flexible or semi-flexible material. The inner side of the rectangular frame (11) is connected to a backing film (16), and a bed sheet (15) is laid on the backing film (16).

3. The non-contact isolation ventilation system for critically ill emergency respiratory patients according to claim 1, characterized in that: It also includes a support component (3), which is an arched rod that matches the arc-shaped top edge contour of the arched wall panel (21). The inner walls of the left and right sides of the rectangular frame (11) are fixed with slots (31), and the two ends of the arched rod are fixed in the corresponding slots (31).

4. The non-contact isolation ventilation system for critically ill emergency respiratory patients according to claim 1, characterized in that: Pressure plates (46) are fixed on the inner side of the side-fitting strip (42). Each pressure plate (46) has dotted anti-slip textures on its underside. When the film-coating assembly (4) is attached to the flat-laying unit (1), each pressure plate (46) is used to press the bed sheet (16) to keep the bed sheet in shape. Each pressure plate (46) is staggered with the slot (31).

5. The non-contact isolation ventilation system for critically ill emergency respiratory patients according to claim 1, characterized in that: Each suction tube is connected to a three-way solenoid valve at its end. The first branch of the three-way solenoid valve is located inside the sealed cavity, and the second branch extends out of the sealed cavity. In its natural state, the first branch of the three-way solenoid valve is open while the second branch is closed. When the three-way solenoid valve is energized, the first branch is closed while the second branch is open. The control terminal of the controller is connected to each three-way solenoid valve to control the opening and closing of each valve. The signal input terminal of the controller is connected to the corresponding button on the control panel (55). When the corresponding button is pressed, the controller executes the venting command.

6. The non-contact isolation ventilation system for critically ill emergency respiratory patients according to claim 1, characterized in that: The disinfection and ventilation system (6) is a closed-loop circulating filtration system. For example, the circulating pipeline is connected to the functional holes of the end wall unit, and an air pump and a filter unit are installed on the circulating pipeline. The filter unit is composed of activated carbon and HEPA filter components, which can filter viruses and bacteria in the air and provide fresh air for the patient. The protective clothing is made of reusable material, can be disassembled, and is easy to clean.

7. The non-contact isolation ventilation system for critically ill emergency respiratory patients according to claim 1, characterized in that: The disinfection and ventilation system (6) is an open disinfection and ventilation system, which includes a disinfection air supply pipe (61), a clean air supply pipe (62) and an exhaust pipe (63). The disinfection air supply pipe (61) is connected to the disinfection gas, and the clean air supply pipe (62) is connected to the sterile air source. First, the disinfection gas is pumped into the sealed chamber through the disinfection air supply pipe (61) for sterilization. After the disinfection is completed, sterile clean air is pumped into the sealed chamber through the clean air supply pipe (62).

8. The non-contact isolation ventilation system for critically ill emergency respiratory patients according to claim 1, characterized in that: The top film (41) of the coating component (4) is made of transparent material, or it is made of non-transparent material but has a film window (7) installed at an appropriate position. The film window (7) includes a transparent film (71) and an adhesive frame (72). An opening is made on the upper side of the fixed mold (41) and an adhesive flat hole (72) is added between the edge of the hole and the edge of the transparent film (71). A functional hole (73) is opened on the transparent film (71) and a sealing gasket (74) is pasted on the outside of the functional hole (73).

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