Auxiliary ventilation treatment equipment for prone position patient
By introducing breathable cushions, support nets, air cushion layers, and ventilation channels into the prone ventilation therapy device, combined with a removable medicated dressing unit, the problems of poor patient ventilation and pressure ulcer risk are solved, improving the comfort and pressure ulcer prevention effect of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV
- Filing Date
- 2026-03-03
- Publication Date
- 2026-05-12
AI Technical Summary
Existing prone ventilation therapy devices concentrate pressure at the main contact points between the patient and the treatment pad, resulting in poor breathability, poor comfort, and a tendency to cause pressure sores with prolonged use.
A device comprising a base, headrest, neck support, chest and abdomen support, and lower body support area is designed. It is equipped with breathable pads, support nets, air cushion layers, and ventilation channels. Airflow is provided through a bellows to achieve ventilation and perspiration. It is also equipped with a removable medicated dressing unit to promote blood circulation and prevent pressure sores.
It achieves good breathability and perspiration for the patient's skin, reduces discomfort, lowers the risk of pressure sores, and improves the comfort and safety of long-term use.
Smart Images

Figure CN122005245A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of assisted ventilation equipment, and relates to an assisted ventilation therapy device for prone patients. Background Technology
[0002] Prone positioning ventilation is an important measure for treating patients with respiratory failure. It involves placing the patient in a prone position to treat them. The prone position can effectively improve lung oxygenation and is increasingly being used for patients with ARDS or poor oxygenation.
[0003] In traditional practices, when patients undergo prone ventilation therapy, pillows are placed under various parts of the patient's body to prevent pressure. Furthermore, patients require oxygen intubation during treatment, necessitating prolonged lateral head and neck positioning, which can easily cause discomfort. Existing technology, Chinese patent CN220588500U, discloses a prone ventilation therapy nursing pad, comprising a wedge-shaped body including a chest / abdomen, shoulder / neck area, and headrest, all integrated into one unit. The contact surface between the chest / abdomen and the body is inclined, with an angle between the inclined surface and the bottom surface of the chest / abdomen between 10° and 15°. A neck brace is provided for the shoulder / neck area, and a headrest with grooves is provided in the headrest. This technical solution allows for better conformation to the patient's body shape during prone ventilation therapy, protecting bony prominences. The neck pillow and headrest also reduce downward shearing forces on the head and neck, lowering the incidence of pressure sores and improving comfort during prone ventilation therapy.
[0004] However, in the aforementioned existing technologies, the pressure is concentrated at the main contact points between the patient and the treatment pad, and there is not enough space, which prevents good perspiration and ventilation at the main contact points, resulting in discomfort during use. Furthermore, since the patient is in contact with the treatment pad for a long time, good pressure ulcer prevention is also required. Therefore, in order to solve the above technical problems, there is an urgent need for a highly comfortable prone patient assisted ventilation therapy device. Summary of the Invention
[0005] This invention proposes an auxiliary ventilation therapy device for patients in the prone position, which effectively solves the problems in the prior art.
[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a prone position patient-assisted ventilation therapy device, comprising a base, wherein a head support, a neck support, and a chest and abdomen with inclined surfaces are provided on the base, and further comprising:
[0007] The lower body support area is formed on the base; the head support, neck support, chest and abdomen and lower body support area are all provided with windows that penetrate the top surface of the base; each window is provided with a breathable soft pad, support net, support frame, air cushion layer and ventilation pipe.
[0008] The breathable pad can be seen through the window to the top surface of the base and is located on top of the support frame;
[0009] The support frame is connected to the interior of the base;
[0010] The support net is located below the breathable pad and in the middle of the support frame to support the breathable pad.
[0011] The air cushion layer is disposed at the bottom of the support frame;
[0012] The ventilation duct is located between the air cushion layer and the support frame;
[0013] A bellows is installed inside the base; the air outlet of the bellows is connected to the ventilation pipe, and the air inlet is connected to the outside of the base; the bellows draws air from outside the base through the air inlet and blows the air onto the breathable pad through the air outlet and the ventilation pipe, and the breathable pad allows the air to pass through.
[0014] Furthermore, the breathable pad includes a breathable layer and a non-woven fabric layer wrapped around the outside of the breathable layer; the breathable layer also has air holes that penetrate from top to bottom.
[0015] Furthermore, the air cushion layer includes a hollow substrate and a plurality of air bladders arrayed on the substrate, the air bladders being in communication with the internal space of the substrate.
[0016] Furthermore, the ventilation duct includes multiple parallel transverse ducts and multiple parallel longitudinal ducts, which are arranged in an alternating pattern and interconnected. Multiple through holes are provided on both the transverse and longitudinal ducts. The transverse and longitudinal ducts are located in the gaps between adjacent airbags.
[0017] Furthermore, the support frame is provided with detachable medicated dressing units on both sides; the medicated dressing units can pass through the breathable pad and come into direct contact with the patient's skin.
[0018] Furthermore, the medicated dressing unit includes a side plate that can be connected to a support frame via a snap fastener, a short tube connected to the middle of the side plate, and multiple support plates connected to the upper part of the side plate; the short tube has multiple through holes and its end can be inserted into a ventilation pipe; a detachable medicated dressing pad is provided on the support plate.
[0019] Furthermore, the breathable pad has a notch for the insertion of the drug-filled pad.
[0020] Furthermore, when the side plate is connected to the support frame, the support plate is located above the support net, and the short pipe and the ventilation pipe are located on the same plane.
[0021] Furthermore, the medicated pad has a sponge layer inside, and the sponge layer absorbs the medicated liquid; the top surface of the sponge layer is covered with an asymmetric hydrophilic-hydrophobic film; and the outside of the sponge layer includes a non-woven fabric layer.
[0022] Furthermore, the medicated pad and the support plate are connected by Velcro.
[0023] Compared with the prior art, the present invention has the following beneficial effects:
[0024] 1. In this invention, air from outside the base is transported into the base through a bellows and ventilation pipes, and then released from the breathable pad to form a breathable airflow. This allows the area in contact with the breathable pad to have good breathability and sweat-wicking effect, relieving discomfort caused by prolonged use.
[0025] 2. In this invention, the breathable soft pad, the support net and the air cushion layer not only form a multi-layer soft treatment pad, but also ensure that the air in the ventilation channel can be effectively dissipated, which has a good anti-pressure sore effect and is convenient for long-term use.
[0026] 3. In this invention, the removable medicated dressing can relieve the discomfort of the patient's skin at the main pressure points, and the medication in the dressing can promote blood circulation and prevent pressure sores. Attached Figure Description
[0027] Figure 1 This is a perspective view of the present invention;
[0028] Figure 2 This is a top view of the present invention;
[0029] Figure 3 This is a side view of the present invention;
[0030] Figure 4 for Figure 3 Enlarged view of part A in the image;
[0031] Figure 5 This is an exploded view of the internal structure of the support frame in this invention;
[0032] Figure 6 for Figure 5 Enlarged view of part B in the image.
[0033] In the diagram: 1. Base; 2. Headrest; 3. Neck Support; 4. Chest and Abdomen; 5. Lower Body Support Area; 6. Breathable Pad; 601. Breathable Layer; 602. Non-woven Fabric Layer; 7. Support Net; 8. Support Frame; 9. Air Cushion Layer; 901. Airbag; 902. Substrate; 10. Ventilation Duct; 1001. Horizontal Duct; 1002. Longitudinal Duct; 11. Bellows; 12. Medication Application Unit; 1201. Side Plate; 1202. Short Tube; 1203. Support Plate; 1204. Medication Application Pad. Detailed Implementation
[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0035] like Figures 1 to 6 As shown, the present invention proposes a ventilation therapy device for prone patients, including a base 1, on which a head support 2, a neck support 3 and a chest and abdomen 4 with an inclined surface are provided;
[0036] The inclination angle of the thoracic and abdominal quadrant 4 is 10°-15°, with 10° being the most effective. Current prone position therapy usually involves a horizontal prone position. When prone, raising the thoracic and abdominal quadrant 4 at a certain angle provides better therapeutic effect and comfort. An angle of 10° best conforms to the physiological curvature of the human spine, reduces spinal pressure, and is more in line with the patient's overall lung and thoracic compliance and hemodynamics.
[0037] Both the headrest 2 and the neck brace 3 have recesses. The recess in the headrest 2 can adapt well to the shape of the patient's head side, while the recess in the neck brace 3 can adapt well to the shape of the patient's neck.
[0038] The base 1 is rectangular, and the head support 2, neck support 3, and chest and abdomen 4 are integrally formed on the base 1. The base 1 also has a lower body support area 5. Windows that penetrate the top surface of the base 1 are opened in the head support 2, neck support 3, chest and abdomen 4, and lower body support area 5. The windows are mainly located at the main pressure points where the patient contacts the base 1, such as the chest, bony prominences, head, and neck. Breathable soft pads 6, support nets 7, support frames 8, air cushion layers 9, and ventilation pipes 10 are installed in the windows.
[0039] like Figure 4 , Figure 5As shown, the breathable cushion 6 can protrude through the window onto the top surface of the base 1 and is located on top of the support frame 8; the support frame 8 is integrally formed inside the base 1, and is a rectangular box with an open top surface; the support net 7 is located below the breathable cushion 6 and in the middle of the support frame 8, with the edge of the support net 7 embedded in the side wall of the support frame 8 to support the breathable cushion 6; the support net 7 can be made of nylon mesh or high-strength fiber woven mesh and has a certain supporting strength; the air cushion layer 9 is located at the bottom of the support frame 8 to flexibly support the support net 7; the ventilation pipe 10 is located between the air cushion layer 9 and the support frame 8;
[0040] The present invention also includes a bellows 11, which is installed inside the base 1. An axial flow fan is installed inside the bellows 11. The air outlet is connected to the ventilation duct 10, and the air inlet is connected to the outside of the base 1. The axial flow fan draws air from outside the base 1 through the air inlet and blows the air onto the breathable pad 6 through the air outlet and the ventilation duct 10. The breathable pad 6 allows the air to pass through. It should be noted that a main duct is connected to the air outlet, and the main duct is connected to the ventilation ducts 10 at each window, so that the airflow provided by the bellows 11 can be blown into the ventilation ducts 10 at each window.
[0041] In this embodiment, as Figure 4 As shown, the breathable pad 6 includes a breathable layer 601 and a non-woven fabric layer 602 surrounding the breathable layer 601. The breathable layer 601 can be made of a soft material with a rich porous structure, such as sponge, polyurethane foam, or latex foam. Therefore, when the ventilation pipe located below the breathable pad 6 outputs airflow, it can be dispersed to the top of the breathable pad 6 through the rich porous structure of the breathable layer 601, allowing airflow to pass through the skin surface below and on the sides of the patient, giving the breathable pad 6 a good breathable and sweat-wicking effect and keeping the patient's skin surface dry. Furthermore, multiple air holes can be opened in the breathable layer 601, with the air holes penetrating the breathable layer 601 from top to bottom, which can enhance the breathability of the entire breathable pad 6. Since the breathable pad 6 is placed on the support net 7, when the breathable pad 6 needs to be replaced, it can be directly taken out from the window, and a sterilized breathable pad 6 can be placed back in through the window, making the replacement operation simple and convenient.
[0042] In this embodiment, as Figure 5 as well as Figure 6As shown, the air cushion layer 9 includes a hollow base 902 and multiple air bladders 901 arrayed on the base 902. The air bladders 901 are connected to the internal space of the base 902. The base 902 can be rectangular, and the air bladders 901 can be elliptical or spherical. The arrayed air bladders 901 have gaps between adjacent air bladders, allowing airflow and increasing overall breathability. In this embodiment, the support net 7, air cushion layer 9, and breathable soft pad 6 form a multi-layered, soft treatment pad. The support net 7 enhances the support strength of the breathable soft pad 6, while the air cushion layer 9 supports the support net 7, preventing deformation and failure that may occur after prolonged use and extending the lifespan. Furthermore, the treatment pad has good breathability, keeping the skin dry and providing good anti-pressure sore effect, making it suitable for prolonged use. It should be noted that the base 902 and the air bladders 901 are pre-filled with gas at a certain pressure.
[0043] In this embodiment, as Figure 5 As shown, the ventilation duct 10 includes multiple parallel transverse ducts 1001 and multiple parallel longitudinal ducts 1002. The transverse ducts 1001 and longitudinal ducts 1002 are arranged in an alternating pattern to form a rectangular grid, and the transverse ducts 1001 and longitudinal ducts 1002 are interconnected. To improve the airflow dispersion of the transverse ducts 1001 and longitudinal ducts 1002, multiple through holes are provided on both the transverse ducts 1001 and longitudinal ducts 1002. The through holes extend along the transverse ducts 1001 or longitudinal ducts 1002. The air ducts 901 and 902 are arranged linearly along their axes. Each transverse duct 1001 and longitudinal duct 1002 is positioned within the gap between adjacent airbags 901, allowing airflow to diffuse through the gaps after exiting the through-holes, reaching the lower part of the breathable pad 6. The abundant porous structure within the breathable pad 6 further disperses the airflow to the upper part of the pad. To improve the ventilation efficiency of the transverse and longitudinal ducts 1001 and 1002, both ends are open. Therefore, the transverse and longitudinal ducts 1001 and 1002 can cover the entire breathable pad 6 with airflow, ensuring continuous airflow throughout and enhancing comfort during extended use.
[0044] In this embodiment, as Figure 5 , Figure 6As shown, detachable dressing units 12 are provided on both sides of the support frame 8; the dressing unit 12 includes a side plate 1201 that can be connected to the support frame 8 by a snap fastener, a short tube 1202 connected to the upper middle part of the side plate 1201, and a plurality of support plates 1203 connected to the upper part of the side plate 1201; specifically, notches are provided on both sides of the support frame 8, and the side plate 1201 can be inserted into the notch, while the outer diameter of the short tube 1202 is slightly smaller than the inner diameter of the transverse pipe 1001, so that the short tube 1202 can be inserted into the transverse pipe 1001. In the conduit 1001, the airflow passing through the transverse conduit 1001 is introduced into the short pipe 1202; furthermore, multiple through holes are opened on the short pipe 1202 to ensure that the airflow is evenly released from the through holes of the short pipe 1202; a detachable medicated pad 1204 is provided on the support, and the airflow emitted from the through holes of the short pipe 1202 can blow from below the medicated pad 1204 toward the medicated pad 1204, distributing the active ingredients of the medicine in the medicated pad 1204 to the patient's skin surface, making it easier for the patient's skin to absorb.
[0045] Specifically, the medicated pad 1204 has an internal sponge layer containing adsorbed medication. The top surface of the sponge layer is covered with an asymmetric hydrophilic-hydrophobic film. The outer surface of the sponge layer includes a non-woven fabric layer 602, which has good breathability. During use, the top surface of the medicated pad 1204 contacts the patient's skin. Due to the presence of the asymmetric hydrophilic-hydrophobic film, the medication can be unidirectionally transferred from the sponge layer to the patient's skin, effectively preventing the backflow of sweat from the patient's skin into the sponge layer. The medication is a silver ion solution or skin protectant pre-adsorbed in the sponge layer; the amount adsorbed in the sponge layer is sufficient to prevent dripping, meeting the absorption requirements of the patient's skin. Therefore, the medicated pad 1204 can be applied to the patient's main pressure points, relieving discomfort and promoting blood circulation in these areas, thus preventing pressure sores. Finally, since the short tube 1202 can emit airflow, the airflow also helps to disperse the drug in the medicated dressing upwards.
[0046] Specifically, the breathable soft pad 6 has a notch for the medicated pad 1204 to be inserted. When the medicated unit 12 is installed on the support frame 8 through the side plate 1201, the medicated pad 1204 is inserted into the notch, ensuring that the medicated pad 1204 can directly contact the patient's skin surface.
[0047] Preferably, when the side plate 1201 is connected to the support frame 8, the support plate 1203 is located above the support net 7, so there is no need to set corresponding notches for the support net 7, which can ensure the integrity and support strength of the support net 7; the short pipe 1202 and the ventilation pipe 10 are located on the same plane. During installation, the axes of the short pipe 1202 and the ventilation pipe 10 are adjusted to coincide, which makes it easy to insert the short pipe 1202 into the ventilation channel.
[0048] Preferably, the medicated pad 1204 and the support plate 1203 are connected by Velcro. After the medicated pad 1204 in the medicated unit 12 has been used for a period of time, the medicated unit 12 can be removed from the support frame 8 by means of a snap fastener. The medicated pad 1204 can then be removed from the support plate 1203, and a new medicated pad 1204 can be attached to the support plate 1203. After the medicated unit 12 is reinstalled onto the support frame 8, it can be used by the patient again. In this way, not only can the replacement cost of the present invention be reduced, but the comfort of the patient's skin at the main contact points can also be maintained for a long time.
[0049] In this embodiment, an openable replacement window is installed on the side of the base 1. A plate is hinged to the replacement window. The side of the plate can be connected to the side of the base 1 through a buckle. When it is necessary to replace or repair the medicine dressing unit 12 and other parts inside the base 1, the plate can be opened to observe the situation inside the base 1 or operate the internal parts through the replacement window.
[0050] In this embodiment, a tubular cavity is provided on one side of the headrest 2, through which the trachea and other parts of the breathing equipment can be inserted, avoiding compression or deformation of the trachea and ensuring the reliability of the treatment process.
[0051] When using the above technical solution:
[0052] The nursing staff installs the medicated dressing unit 12 onto the support frame 8; the entire invention is placed on the hospital bed, and the patient is placed on the invention, so that the patient's head, neck, chest and lower body are respectively located in the head support 2, neck support 3, chest and abdomen 4 and lower body support area 5, and the patient is in a prone position; after the breathing device mask is put on the patient's face, the axial flow fan in the bellows 11 can be turned on, so that the axial flow fan provides a continuous airflow, and the airflow can flow to each window through the main pipe and ventilation pipe 10, so that the breathable soft pads 6 of each window can emit airflow over the patient's skin surface, keep the patient's skin surface dry, and improve the comfort of long-term use.
[0053] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A prone position patient-assisted ventilation therapy device, comprising a base (1), wherein a headrest (2), a neck support (3), and a pleated chest and abdomen (4) are provided on the base (1), characterized in that, Also includes: The lower body support area (5) is formed on the base (1); the head support (2), neck support (3), chest and abdomen (4) and lower body support area (5) are all provided with windows that penetrate the top surface of the base (1); each window is provided with a breathable soft pad (6), a support net (7), a support frame (8), an air cushion layer (9) and a ventilation pipe (10). The breathable pad (6) can be seen through the window to the top surface of the base (1) and is located on the top of the support frame (8); The support frame (8) is connected to the interior of the base (1); The support net (7) is located below the breathable cushion (6) and in the middle of the support frame (8); it supports the breathable cushion (6). The air cushion layer (9) is disposed at the bottom of the support frame (8); The ventilation duct (10) is disposed between the air cushion layer (9) and the support frame (8); A bellows (11) is located inside the base (1); the air outlet of the bellows (11) is connected to the ventilation pipe (10), and the air inlet is connected to the outside of the base (1); the bellows (11) draws air from the outside of the base (1) through the air inlet and blows the air onto the breathable pad (6) through the air outlet and the ventilation pipe (10), and the breathable pad (6) can allow the air to pass through.
2. The prone position patient assisted ventilation therapy device according to claim 1, characterized in that: The breathable pad (6) includes a breathable layer (601) and a non-woven fabric layer (602) wrapped around the breathable layer (601); the breathable layer (601) also has air holes that penetrate from top to bottom.
3. The prone position patient assisted ventilation therapy device according to claim 1, characterized in that: The air cushion layer (9) includes a hollow substrate (902) and a plurality of air bladders (901) arrayed on the substrate (902), the air bladders (901) being in communication with the interior space of the substrate (902).
4. The prone position patient assisted ventilation therapy device according to claim 3, characterized in that: The ventilation duct (10) includes multiple parallel transverse ducts (1001) and multiple parallel longitudinal ducts (1002). The transverse ducts (1001) and longitudinal ducts (1002) are arranged in an alternating pattern and are interconnected. Multiple through holes are provided on both the transverse ducts (1001) and the longitudinal ducts (1002). The transverse ducts (1001) and longitudinal ducts (1002) are both located in the gaps between adjacent airbags (901).
5. The prone position patient assisted ventilation therapy device according to claim 1, characterized in that: The support frame (8) is provided with detachable medicated dressing units (12) on both sides; the medicated dressing units (12) can pass through the breathable soft pad (6) and come into direct contact with the patient's skin.
6. The prone position patient assisted ventilation therapy device according to claim 5, characterized in that: The dressing unit (12) includes a side plate (1201) that can be connected to the support frame (8) by a snap fastener, a short tube (1202) connected to the upper middle part of the side plate (1201), and a plurality of support plates (1203) connected to the upper part of the side plate (1201); the short tube (1202) has a plurality of through holes and its end can be inserted into the ventilation pipe (10); the support plate (1203) is provided with a detachable dressing pad (1204).
7. The prone position patient assisted ventilation therapy device according to claim 6, characterized in that: The breathable pad (6) has a notch into which the medicine-supplying pad (1204) is inserted.
8. The prone position patient assisted ventilation therapy device according to claim 6, characterized in that: When the side plate (1201) is connected to the support frame (8), the support plate (1203) is located above the support net (7), and the short pipe (1202) and the ventilation pipe (10) are located on the same plane.
9. The prone position patient assisted ventilation therapy device according to claim 6, characterized in that: The medicated pad (1204) has a sponge layer inside, and the sponge layer is filled with medicated liquid; the top surface of the sponge layer is covered with an asymmetric hydrophilic-hydrophobic film; the outside of the sponge layer includes a non-woven fabric layer (602).
10. The prone position patient assisted ventilation therapy device according to claim 6, characterized in that: The medicated pad (1204) and the support plate (1203) are connected by Velcro.