A ventilator mask with pressure ulcer prevention function

Abstract

The present invention provides a ventilator mask with an anti-pressure sore function, which belongs to the technical field of ventilator masks. It comprises a mask body, which is made of a highly elastic rubber material, elastic straps are fixedly installed on both sides of the mask body, and a connecting seat is fixedly installed in the middle of the top of the mask body. The present invention starts an electric push rod to push the bracket and the adjusting wheel to rotate, and then pulls the mask body. Since the mask body is made of highly elastic material, it can be flexibly adjusted according to actual needs. For example, at different times of the day, the electric push rod is started in the morning to expand the bracket and open the mask body; at noon and at night, the electric push rod is controlled to retract, so that the bracket and the mask body are gradually retracted. This method of adjusting the degree and area of ​​the mask body opening according to time can effectively prevent it from pressing the same position on the patient's face for a long time, effectively reducing the possibility of pressure sores, and providing patients with a more comfortable use experience.

Description

Technical Field

[0001] This invention relates to the field of ventilator mask technology, and more specifically, to a ventilator mask with pressure ulcer prevention function. Background Technology

[0002] In the modern medical field, ventilators are widely used as important life support equipment in the treatment of various patients who need assisted breathing. For some patients, wearing a ventilator mask for a long time has become a necessary means to maintain stable vital signs. However, the design and use of existing ventilator masks have revealed some problems that urgently need to be solved, among which facial skin pressure sores are particularly prominent.

[0003] When wearing a ventilator mask for a long time, the area of ​​the patient's face in contact with the mask is subjected to pressure for an extended period, especially the sides of the nose. Due to their unique facial anatomy, these areas are in a relatively prominent position when the mask is worn, resulting in more concentrated pressure on these areas. As the wearing time continues to extend, the mask remains in continuous contact with the same area of ​​the face, and the pressure continues to act on the skin on both sides of the nose, leading to severe obstruction of local blood circulation.

[0004] Human skin relies on normal blood circulation to provide nutrients and oxygen and remove metabolic waste. When local blood circulation is impaired due to long-term pressure, skin cells cannot obtain sufficient nutrient supply and metabolic waste cannot be excreted in time, which in turn leads to cell metabolic dysfunction. In the early stage, this dysfunction manifests as redness and swelling of the skin, which is a stress response of the body to local ischemia and hypoxia.

[0005] Meanwhile, during the use of a ventilator, although there may be slight head movements, the close fit of the mask to the face and its prolonged contact with the same position on the face creates continuous friction between the skin on both sides of the nose and the mask. This friction will continuously wear down the stratum corneum of the skin and weaken the skin's barrier function. Exhaled air accumulates inside the mask, increasing the humidity in the contact area. The skin is in a moist environment for a long time, which further reduces the skin's tolerance to pressure and friction.

[0006] If the above situation is not effectively improved over time, the redness and swelling of the skin will continue to worsen, and the skin tissue will gradually lose its normal physiological function, eventually developing into pressure ulcers. Pressure ulcers not only cause great pain to patients and affect their quality of life, but also increase the risk of infection, prolong the patient's recovery period, and may even cause serious complications, threatening the patient's life and health. Summary of the Invention

[0007] In view of the problem that existing masks lack pressure ulcer prevention function, the purpose of this invention is to provide a ventilator mask with pressure ulcer prevention function.

[0008] To solve the above problems, the present invention adopts the following technical solution:

[0009] A ventilator mask with pressure ulcer prevention function includes a mask body made of highly elastic rubber material. Elastic straps are fixedly installed on both sides of the mask body. A connecting seat is fixedly installed in the middle of the top of the mask body. A connector is fixedly connected to the top of the connecting seat. An air hose is fixedly installed on the outside of the connector. The input end of the air hose is connected to the inside of the mask body. An adjustment device is installed on the top of the mask body.

[0010] The adjusting device includes a connecting mechanism and a ring body. An angle adjusting mechanism is fixedly installed on the top of the connecting mechanism. Movable mechanisms are installed in a ring shape with equal spacing on the outer side of the ring body. The outer side of the movable mechanisms is connected to the adjusting mechanism. A tightening mechanism is fixedly installed on the top of the ring body.

[0011] Optionally, the inlet end of the ventilation hose is fixedly equipped with a regulating valve, and a threaded connector is fixedly installed on the outside of the regulating valve.

[0012] Optionally, the movable mechanism includes an annular groove, which is formed on the outer side of the ring body. Inside the annular groove, sliders are slidably connected in a ring with equal spacing. The outer side of the sliders is connected to the inner side of the angle adjustment mechanism. A driving component is fixedly connected to the top of the sliders, and the driving component is disposed on the top of the ring body.

[0013] Optionally, the drive assembly includes a side arm and a gear ring. The side arm is fixedly connected to the top of the slider, and the gear ring is fixedly installed on the top of the ring body. A drive motor is fixedly connected to the top of the side arm, and a gear is fixedly connected to the output end of the drive motor through the side arm. The gear and the gear ring are meshed together.

[0014] Optionally, the angle adjustment mechanism includes a fixed block, which is fixedly installed on the outside of the slider. A first hinge seat is hinged to the outside of the fixed block, and a second hinge seat is fixedly connected to the bottom of the fixed block. An adjusting wheel is rotatably connected to the inside of the first hinge seat, and a bracket is fixedly connected to the outside of the adjusting wheel. An elastic component is fixedly installed at the outer end of the bracket, and the outer end of the elastic component is connected to the top of the connecting mechanism. An electric push rod is hinged to the bottom of the second hinge seat, and a hinge member is provided at the output end of the electric push rod. The electric push rod is hinged to the upper inner end of the bracket through the hinge member at its output end.

[0015] Optionally, the elastic component includes a base plate, which is fixedly mounted on the outer end of the bracket. A telescopic spring is fixedly mounted on the bottom of the base plate, and a base plate is fixedly mounted on the bottom of the telescopic spring. The bottom of the base plate is connected to the connecting mechanism.

[0016] Optionally, support rods are fixedly installed at both ends of the top of the base plate, the top of the support rods penetrates through the base plate, and the upper end of the support rods is slidably connected to the base plate.

[0017] Optionally, the connecting mechanism includes a frame and blocks. The blocks are arranged in a ring at equal intervals and fixedly connected to the lower outer side of the mask body. The frame is fixedly connected to the bottom of the base plate. The blocks are inserted into the frame. The frame has a snap-fit ​​component on its inner side.

[0018] Optionally, the snap-fit ​​assembly includes a concave frame and a limiting groove. Limiting springs are fixedly connected to both ends of the inner side of the concave frame. A push plate is fixedly installed on the outer side of the limiting springs. A limiting block is fixedly connected to the outer side of the push plate. The limiting groove is opened on the outer side of the snap-fit ​​block. The end of the limiting block passes through the snap-fit ​​frame and is inserted into the inside of the snap-fit ​​groove. A connecting shaft is fixedly connected to the outer side of the push plate. A pull-out plate is fixedly connected to the end of the connecting shaft through the concave frame.

[0019] Optionally, the tightening mechanism includes a rail frame and a pull ring. The rail frame is fixedly installed on the inner side of the ring body, and the pull ring is fixedly connected to the top of the connector. A lead screw is rotatably connected inside the rail frame, and an adjusting handle is fixedly connected to the top of the lead screw through the rail frame. A movable plate is threadedly connected to the outer surface of the lead screw, and the movable plate is movably connected to the inside of the rail frame. A connecting frame is fixedly connected to the bottom of the movable plate, and a hook is fixedly connected to the bottom of the connecting frame. The pull ring is hooked onto the outer surface of the hook.

[0020] Compared with the prior art, the technical solution provided by this invention has at least the following beneficial effects:

[0021] In the above-described solution, the mask is securely fixed to the patient's face using elastic straps during actual use. It connects to the ventilator via a threaded connector at the end of the ventilation hose on the connector head. When adjustment is needed, the electric actuator is activated to rotate the support and adjustment wheel, thereby pulling the mask body out. Because the mask body is made of highly elastic material, it can be flexibly adjusted according to actual needs. For example, at different times of the day, the electric actuator can be activated in the morning to expand the support and open the mask body; at noon and in the evening, the electric actuator can be controlled to retract, allowing the support and mask body to gradually shrink. This method of adjusting the degree and area of ​​the mask body's opening based on time effectively prevents prolonged pressure on the same area of ​​the patient's face, effectively reducing the possibility of pressure sores and providing a more comfortable user experience for the patient.

[0022] The connection mechanism allows for easy cleaning or replacement of the face mask. Simply pull out the pull plate, which drives the connecting shaft, causing the limiting block to compress the limiting spring and disengage from the limiting groove. This allows the locking block to be pulled out from inside the locking frame. Then, the hook and pull ring on the top of the face mask can be separated to complete the removal. The installation process is the reverse: pull out the pull plate to disengage the limiting block from the inside of the locking frame, insert the locking block, and then release the pull plate. The limiting spring returns to its original position, pushing the limiting block into the limiting groove. Finally, the hook and pull ring can be attached to complete the installation. This design makes the face mask easy to install and remove, facilitating subsequent daily maintenance and disinfection, and helping to maintain the hygiene and safety of the face mask.

[0023] By incorporating elastic components and a tightening mechanism, this mask utilizes the telescopic spring between the base plate and the substrate for cushioning during application. Combined with the support rod guiding the expansion and contraction process, the overall device exhibits excellent elasticity, effectively enhancing the comfort of wearing the mask. The movable mechanism further improves the mask's practicality. When in use, the drive motor, through gear and ring gear transmission, drives the slider to slide within the annular groove, flexibly adjusting the bracket rotation and causing the mask to deform to better fit different patients' faces. Furthermore, turning the adjustment handle rotates the lead screw within the rail frame, driving the movable plate up and down, causing the hook to rise and fall accordingly. This further optimizes the mask's shape as it expands or contracts, strengthening the anti-pressure ulcer effect and comprehensively improving the patient's experience. Attached Figure Description

[0024] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a bottom-view structural diagram of the present invention;

[0027] Figure 3 This is a side view of the split-state structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the tightening mechanism of the present invention;

[0029] Figure 5 This is a top view schematic diagram of the adjustment device of the present invention;

[0030] Figure 6 This is a bottom view schematic diagram of the adjustment device of the present invention;

[0031] Figure 7 This is a schematic diagram of the angle adjustment mechanism of the present invention from a bottom view.

[0032] Figure 8 This is a top view schematic diagram of the angle adjustment mechanism of the present invention;

[0033] Figure 9 For the present invention Figure 3 A magnified structural diagram at point A;

[0034] Figure 10 For the present invention Figure 6 A magnified structural diagram at point B.

[0035] [Figure Labels]

[0036] 1. Mask body; 2. Elastic straps; 3. Connector; 4. Connector head; 5. Ventilation hose;

[0037] 6. Adjustment device;

[0038] 61. Connecting mechanism; 611. Card frame; 612. Card block;

[0039] 21. Snap-fit ​​assembly; 211. Concave frame; 212. Limiting groove; 213. Limiting spring; 214. Push plate; 215. Limiting block; 216. Coupling shaft; 217. Pull-out plate;

[0040] 62. Ring body;

[0041] 63. Angle adjustment mechanism; 631. Fixing block; 632. First hinge seat; 633. Second hinge seat; 634. Adjusting wheel; 635. Bracket;

[0042] 22. Elastic component; 221. Base plate; 222. Telescopic spring; 223. Base plate; 224. Support rod;

[0043] 637. Electric linear actuator; 638. Hinge;

[0044] 64. Movable mechanism; 641. Annular groove; 642. Slider;

[0045] 23. Drive assembly; 231. Side arm; 232. Gear; 233. Gear ring; 234. Drive motor;

[0046] 65. Adjusting mechanism; 651. Rail frame; 652. Pull ring; 653. Lead screw; 654. Adjusting handle; 655. Movable plate; 656. Connecting frame; 657. Hook;

[0047] 7. Control valve; 8. Threaded connector.

[0048] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0049] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. It should also be noted that, to make the embodiments more comprehensive, the following embodiments are the best and preferred embodiments, and those skilled in the art can use other alternative methods to implement some well-known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0050] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0051] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0052] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0053] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0054] like Figures 1 to 10 As shown, this embodiment of the invention provides a ventilator mask with pressure ulcer prevention function, including a mask body 1, which is made of highly elastic rubber material. Elastic straps 2 are fixedly installed on both sides of the mask body 1. A connecting seat 3 is fixedly installed in the middle of the top of the mask body 1. A connector 4 is fixedly connected to the top of the connecting seat 3. An air hose 5 is fixedly installed on the outside of the connector 4. The input end of the air hose 5 is connected to the inside of the mask body 1. An adjustment device 6 is installed on the top of the mask body 1.

[0055] The adjustment device 6 includes a connecting mechanism 61 and a ring 62. An angle adjustment mechanism 63 is fixedly installed on the top of the connecting mechanism 61. Movable mechanisms 64 are arranged in a ring at equal intervals on the outer side of the ring 62, and their outer sides are connected to the adjustment mechanism. A tightening mechanism 65 is fixedly installed on the top of the ring 62. The device consists of a mask body 1 made of highly elastic rubber, which can be securely worn on the patient's face via elastic straps 2 on both sides. The connector 4 on the top connecting seat 3 is connected to the ventilation hose 5, and the inlet end of the ventilation hose 5 communicates with the inside of the mask body 1 to achieve gas delivery to the ventilator. In the adjustment device 6, the connecting mechanism 61 serves as a basic connecting component, providing support for the angle adjustment mechanism 63. The angle adjustment mechanism 63 can change the angle of the mask body 1 to adapt to different patient facial contours. The movable mechanisms 64, arranged in a ring on the outer side of the ring 62, can flexibly change their position under the action of the adjustment mechanism, thereby driving the connected adjustment mechanism to adjust the shape of the mask body 1. Meanwhile, the tightening mechanism 65 at the top of the ring 62 can finely adjust the tightness of the entire adjustment device 6, ensuring that the mask fits the face well during use without causing pressure sores due to excessive tightness. At the same time, its shrinkable and expandable design can prevent the edge of the mask body 1 from covering the same position of the patient's face for a long time, achieving good pressure sore prevention and wearing comfort.

[0056] like Figures 5 to 8 and Figure 10As shown, the movable mechanism 64 includes an annular groove 641, which is located on the outer side of the ring body 62. Sliding sliders 642 are slidably connected to the annular groove 641 in a ring-like arrangement at equal intervals. The outer side of the sliders 642 is connected to the inner side of the angle adjustment mechanism 63. A drive assembly 23 is fixedly connected to the top of the sliders 642. The drive assembly 23 is located on the top of the ring body 62 and includes a side arm 231 and a gear ring 233. The side arm 231 is fixedly connected to the top of the sliders 642, and the gear ring 233 is fixedly installed on the top of the ring body 62. A drive motor 234 is fixedly connected to the top of the side arm 231. The output end of the drive motor 234 passes through the side arm 231 and is fixedly connected to a gear 232. The gear 232 and the gear ring 233 mesh with each other. The annular groove 641 on the outer side of the ring body 62 provides a track for the movement of the entire mechanism. Multiple sliders 642 are arranged in a ring-like arrangement at equal intervals and slide within the annular groove 641. The outer side of slider 642 is connected to the inner side of angle adjustment mechanism 63, which can drive the angle adjustment mechanism 63 to move. The drive assembly 23 connected to the top of slider 642 is the power source of movable mechanism 64. The side arm 231 in drive assembly 23 is fixed to the top of slider 642, and a gear ring 233 is installed on the top of ring body 62. After the drive motor 234 at the top of side arm 231 is started, its output end drives gear 232 to rotate. Since gear 232 and gear ring 233 are meshed, the power generated by drive motor 234 is transmitted through gear 232 and gear ring 233, causing slider 642 to slide in annular groove 641, thereby driving angle adjustment mechanism 63 connected to it to move. This allows for flexible adjustment of the deformation of the mask body 1 at the bottom, enabling better adjustment of mask body 1.

[0057] like Figures 5 to 8 As shown, the angle adjustment mechanism 63 includes a fixing block 631, which is fixedly installed on the outside of the slider 642. A first hinge seat 632 is hinged to the outside of the fixing block 631, and a second hinge seat 633 is fixedly connected to the bottom of the fixing block 631. An adjusting wheel 634 is rotatably connected to the inside of the first hinge seat 632, and a bracket 635 is fixedly connected to the outside of the adjusting wheel 634. An elastic component 22 is fixedly installed at the outer end of the bracket 635, and the outer end of the elastic component 22 is connected to the top of the connecting mechanism 61. An electric push rod 637 is hinged to the bottom of the second hinge seat 633. The output end of the electric push rod 637 is provided with a hinge member 638, and the electric push rod 637 is hinged to the upper inner side of the bracket 635 through the hinge member 638 at its output end.

[0058] The elastic component 22 includes a base plate 221, which is fixedly mounted on the outer end of the bracket 635. A telescopic spring 222 is fixedly mounted on the bottom of the base plate 221, and a base plate 223 is fixedly mounted on the bottom of the telescopic spring 222. The bottom of the base plate 223 is connected to the connecting mechanism 61. Support rods 224 are fixedly mounted on both ends of the top of the base plate 223. The top of the support rods 224 penetrates the base plate 221, and the upper end of the support rods 224 is slidably connected to the base plate 221. The fixing block 631 on the outside of the slider 642 serves as a connecting hub. The first hinge seat 632 hinged to its outside and the second hinge seat 633 fixed at the bottom provide connection points for the adjusting wheel 634 and the electric push rod 637, respectively. When the electric push rod 637 is activated, the hinge member 638 at its output end pushes the bracket 635 to move. 34 is rotatably connected to the first hinge seat 632, which can assist the bracket 635 in smoothly changing its angle. At the same time, the elastic component 22 fixed to the outer end of the bracket 635 plays a role in buffering and supporting during the adjustment process. Inside the elastic component 22, the base plate 221 is installed on the outer end of the bracket 635, and the telescopic spring 222 at its bottom is connected to the base plate 223, which provides elastic buffering during adjustment. The support rods 224 at both ends of the base plate 223 pass through the base plate 221 and slide to it, guiding the telescopic spring 222 to extend and retract stably, ensuring the reliability of the elastic component 22. The outer end of the elastic component 22 is connected to the top of the connecting mechanism 61, realizing a stable connection between the entire angle adjustment mechanism 63 and other components, ultimately achieving flexible and stable adjustment of the specific angle and position of the mask. At the same time, the buffer design can avoid excessive pressure on the patient's face and excessive pressure during wear.

[0059] like Figures 5 to 8As shown, the connecting mechanism 61 includes a frame 611 and blocks 612. The blocks 612 are arranged in a ring at equal intervals and fixedly connected to the lower outer side of the mask body 1. The frame 611 is fixedly connected to the bottom of the base plate 223. The blocks 612 are inserted into the inside of the frame 611. The inner side of the frame 611 is provided with a snap-fit ​​assembly 21. The snap-fit ​​assembly 21 includes a concave frame 211 and a limiting groove 212. Limiting springs 213 are fixedly connected to both ends of the inner side of the concave frame 211. The outer side of the limiting springs 213 is fixedly connected to the limiting groove 212. A push plate 214 is fixedly installed, and a limiting block 215 is fixedly connected to the outer side of the push plate 214. A limiting groove 212 is opened on the outer side of the locking block 612. The end of the limiting block 215 passes through the locking frame 611 and is inserted into the inside of the locking groove. A connecting shaft 216 is fixedly connected to the outer side of the push plate 214. A pull plate 217 is fixedly connected to the end of the connecting shaft 216 through the concave frame 211. An adjusting valve 7 is fixedly installed at the input end of the ventilation hose 5. A threaded connector 8 is fixedly installed on the outer side of the adjusting valve 7. The outer side of the mask body 1 The lower end of the locking blocks 612, arranged in a ring at equal intervals, cooperates with the locking frame 611 fixed to the bottom of the base plate 223. The locking blocks 612 can be inserted into the locking frame 611. The locking component 21 on the inner side of the locking frame 611 is used to lock the locking blocks 612. The limiting springs 213 fixed at both ends of the concave frame 211 are connected to the outer side of the push plate 214, and the push plate 214 is connected to the limiting block 215. The outer side of the locking block 612 has a limiting groove 212. When the locking block 612 is inserted into the locking frame 611, the end of the limiting block 215 penetrates the locking frame 611 under the action of the limiting spring 213. The mask body 1 is inserted into the limiting groove 212 to complete the snap-fit ​​fixation. To disassemble, pull the pull plate 217 at the end of the connecting shaft 216. The connecting shaft 216 drives the push plate 214 to compress the limiting spring 213, causing the limiting block 215 to disengage from the limiting groove 212. The snap-fit ​​block 612 can then be pulled out for easy and quick removal of the mask body 1. In addition, it is equipped with a ventilation hose 5 and a regulating valve 7. During use, the gas flow can be controlled by the regulating valve 7 installed at the input end of the ventilation hose 5. The threaded connector 8 on the outside of the regulating valve 7 is used to connect to the ventilator to ensure stable gas delivery to the mask body 1.

[0060] like Figures 1 to 4As shown, the tightening mechanism 65 includes a rail frame 651 and a pull ring 652. The rail frame 651 is fixedly installed inside the ring body 62. The pull ring 652 is fixedly connected to the top of the connector 4. A lead screw 653 is rotatably connected inside the rail frame 651. An adjusting handle 654 is fixedly connected to the top of the lead screw 653 through the rail frame 651. A movable plate 655 is threadedly connected to the outer surface of the lead screw 653. The movable plate 655 is movably connected to the inside of the rail frame 651. A connecting frame 656 is fixedly connected to the bottom of the movable plate 655. A hook 657 is fixedly connected to the bottom of the connecting frame 656. The pull ring 652 is hooked onto the outer surface of the hook 657. The rail frame 651 is fixedly installed inside the ring body 62, and the pull ring 652... The hook 657 is fixed to the top of the connector 4 and attached to the outer surface of the hook 657. The hook 657 is connected to the connecting frame 656 at the bottom of the movable plate 655. The movable plate 655 is located inside the rail frame 651 and is threadedly connected to the lead screw 653. When the adjusting handle 654 at the top of the lead screw 653 is rotated, the lead screw 653 rotates accordingly. Since the lead screw 653 and the movable plate 655 are threadedly connected, the rotation of the lead screw 653 will drive the movable plate 655 to move up and down inside the rail frame 651. In this way, the hook 657 can be moved up and down, thereby changing the position and force state of the pull ring 652, and thus adjusting the tightness of the entire device to achieve the tightening operation of the ventilator mask, so that the fit and tension of the mask can be adjusted to meet different usage needs.

[0061] The workflow of the technical solution provided by this invention is as follows:

[0062] During use, the elastic strap 2 securely fastens the mask body 1 to the patient's face. During operation, the threaded connector 8 at the end of the ventilation hose 5 on the connector 4 is used to connect to the ventilator. When mask adjustment is needed, the electric push rod 637 is activated. After the electric push rod 637 operates, it pushes the support 635 and the adjusting wheel 634 to rotate. As the support 635 and the adjusting wheel 634 rotate, the mask body 1 begins to extend. Because the mask body 1 is made of a highly elastic material, it has good elasticity and can be flexibly adjusted according to actual needs during use. For example, during the morning hours, activating the electric push rod 637 pushes the hinge 638, first hinge seat 632, and second hinge seat 633 in a coordinated manner, causing the support 635 to expand outwards. At noon, the mask body 1 is pulled out and deformed. At noon, the electric push rod 637 is activated to retract, driving the adjusting wheel 634 to retract the bracket 635 inward. The mask body 1 then adaptively retracts. When night falls, the electric push rod 637 is activated to retract further. The first hinge seat 632 and the second hinge seat 633 work together with the hinge 638 to move the bracket 635 further inward. During this period, the mask body 1 further retracts and deforms. In this way, the degree of opening of the mask body 1 can be adjusted according to different time periods during the use of this mask, so as to adjust the area of ​​the mask body 1. This function can effectively avoid the mask body 1 pressing on the same position of the patient's face for a long time, thereby reducing the risk of pressure sores.

[0063] The connecting mechanism 61 facilitates the cleaning and replacement of the mask body 1. When the mask body 1 needs to be cleaned or replaced, the pull plate 217 is pulled out, which drives the connecting shaft 216, thereby pulling out the limiting block 215. The limiting block 215 compresses the limiting spring 213, causing it to contract. At this time, the limiting block 215 moves outward and disengages from the limiting groove 212. After the limiting groove 212 and the limiting block 215 are separated, the locking block 612 can be pulled out from inside the locking frame 611. After the locking block 612 is removed, the mask body 1 can be removed by simply separating the hook 657 and the pull ring 652 at the top of the mask body 1. To install the mask body 1, the pull plate 217 is pulled out, which drives the limiting spring 213 to contract. Block 215 compresses the limiting spring 213, causing the limiting block 215 to disengage from the inside of the frame 611. Then, the locking block 612 on the mask body 1 is inserted into the frame 611. After that, the pull plate 217 is released, the limiting spring 213 returns to its original position, and the push plate 214 is pushed to squeeze the limiting block 215, causing it to insert into the limiting groove 212. Through the mutual locking and limiting of the limiting block 215 and the limiting groove 212, the locking block 612 is securely locked and installed inside the frame 611. Finally, the hook 657 and the pull ring 652 are hooked together, thus completing the installation of the mask body 1. This design makes the mask body 1 of this device easy to disassemble and assemble, which is beneficial for subsequent replacement of the mask body 1 for daily maintenance and disinfection.

[0064] The elastic component 22 provides good cushioning performance during use. The telescopic spring 222 between the base plate 223 and the base plate 221 can play an auxiliary cushioning role during use, providing a good cushioning effect on the mask body 1. At the same time, the support rod 224 can guide the extension and retraction process of the telescopic spring 222, ensuring that it can extend and retract stably, thereby giving the overall device good elasticity and improving the comfort of wearing the mask body 1.

[0065] The movable mechanism 64 provides greater flexibility for mask adjustment. When using this device, the drive motor 234 is activated, driving the gear 232 to rotate. Since the gear 232 meshes with the gear ring 233, the mutual transmission between the gear 232 and the gear ring 233 drives the reverse-drive slider 642 to slide inside the annular groove 641. By driving the slider 642 to slide inside the annular groove 641, the rotation of the support 635 can be flexibly adjusted. After adjusting and rotating the support 635, the bottom mask body 1 can be pulled, causing further deformation of the mask body 1, thus better adapting to the faces of different patients. In addition to adjustment via the drive motor 234, other adjustments can also be made during use. The top adjustment handle 654 can also be twisted to rotate it. The rotation of the adjustment handle 654 drives the lead screw 653 inside the rail frame 651 to rotate. The rotation of the lead screw 653 drives the movable plate 655 to slide up and down inside the rail frame 651. By adjusting the up and down sliding of the movable plate 655, the hook 657 at the bottom of the movable plate 655 moves up and down. When the angle adjustment mechanism 63 adjusts the expansion of the mask body 1, the hook 657 is adjusted to move upward, so that the entire mask body 1 can be further expanded. When the mask body 1 is adjusted to contract, the hook 657 is adjusted to move downward, so that the mask body 1 can be further contracted. In this way, the mask body 1 can form a relatively stable structure during expansion and contraction, further ensuring its pressure ulcer prevention effect.

[0066] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0067] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A ventilator mask with pressure ulcer prevention function, comprising a mask body, characterized in that, The mask body is made of highly elastic rubber material. Elastic straps are fixedly installed on both sides of the mask body. A connecting seat is fixedly installed in the middle of the top of the mask body. A connector is fixedly connected to the top of the connecting seat. A ventilation hose is fixedly installed on the outside of the connector. The input end of the ventilation hose is connected to the inside of the mask body. An adjustment device is installed on the top of the mask body. The adjusting device includes a connecting mechanism and a ring body. An angle adjusting mechanism is fixedly installed on the top of the connecting mechanism. Movable mechanisms are installed in a ring shape with equal spacing on the outer side of the ring body. The outer side of the movable mechanism is connected to the adjusting mechanism. A tightening mechanism is fixedly installed on the top of the ring body. The active mechanism includes an annular groove, which is opened on the outside of the ring body. Inside the annular groove, sliders are slidably connected in a ring with equal spacing. The outside of the sliders is connected to the inside of the angle adjustment mechanism. A drive component is fixedly connected to the top of the sliders. The drive assembly includes a side arm and a gear ring. The side arm is fixedly connected to the top of the slider, and the gear ring is fixedly installed on the top of the ring body. A drive motor is fixedly connected to the top of the side arm, and a gear is fixedly connected to the output end of the drive motor through the side arm. The gear and the gear ring are meshed together. The angle adjustment mechanism includes a fixed block, which is fixedly installed on the outside of the slider. The top of the fixed block is fixedly connected to the side wall. A first hinge seat is hinged to the outside of the fixed block. A second hinge seat is fixedly connected to the bottom of the fixed block. An adjusting wheel is rotatably connected to the inside of the first hinge seat. A bracket is fixedly connected to the outside of the adjusting wheel. An elastic component is fixedly installed at the outer end of the bracket. The outer end of the elastic component is connected to the top of the connecting mechanism. An electric push rod is hinged to the bottom of the second hinge seat. The output end of the electric push rod is provided with a hinge. The electric push rod is hinged to the upper inner side of the bracket through the hinge at its output end. The tightening mechanism includes a rail frame and a pull ring. The rail frame is fixedly installed on the inner side of the ring body, and the pull ring is fixedly connected to the top of the connector. A lead screw is rotatably connected inside the rail frame. An adjusting handle is fixedly connected to the top of the lead screw through the rail frame. A movable plate is threadedly connected to the outer surface of the lead screw. The movable plate is movably connected to the inside of the rail frame. A connecting frame is fixedly connected to the bottom of the movable plate. A hook is fixedly connected to the bottom of the connecting frame. The pull ring is hooked onto the outer surface of the hook.

2. The ventilator mask with pressure ulcer prevention function according to claim 1, characterized in that, The inlet end of the ventilation hose is fixedly equipped with a regulating valve, and a threaded connector is fixedly installed on the outside of the regulating valve.

3. The ventilator mask with pressure ulcer prevention function according to claim 1, characterized in that, The drive assembly is located at the top of the ring.

4. The ventilator mask with pressure ulcer prevention function according to claim 3, characterized in that, The elastic component includes a base plate, which is fixedly mounted on the outer end of the bracket. A telescopic spring is fixedly mounted on the bottom of the base plate, and a base plate is fixedly mounted on the bottom of the telescopic spring. The bottom of the base plate is connected to the connecting mechanism.

5. The ventilator mask with pressure ulcer prevention function according to claim 4, characterized in that, Support rods are fixedly installed at both ends of the top of the base plate. The top of the support rods penetrates the base plate, and the upper end of the support rods is slidably connected to the base plate.

6. The ventilator mask with pressure ulcer prevention function according to claim 5, characterized in that, The connecting mechanism includes a frame and blocks. The blocks are arranged in a ring at equal intervals and fixedly connected to the lower outer side of the mask body. The frame is fixedly connected to the bottom of the base plate. The blocks are inserted into the frame. The frame has a snap-fit ​​component on its inner side.

7. The ventilator mask with pressure ulcer prevention function according to claim 6, characterized in that, The snap-fit ​​assembly includes a concave frame and a limiting groove. Limiting springs are fixedly connected to both ends of the inner side of the concave frame. A push plate is fixedly installed on the outer side of the limiting springs. A limiting block is fixedly connected to the outer side of the push plate. The limiting groove is opened on the outer side of the snap-fit ​​block. The end of the limiting block passes through the snap-fit ​​frame and is inserted into the inside of the snap-fit ​​groove. A connecting shaft is fixedly connected to the outer side of the push plate. A pull-out plate is fixedly connected to the end of the connecting shaft through the concave frame.

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