A breathing mask for a non-invasive ventilator

Abstract

This utility model provides a breathing mask for a non-invasive ventilator, relating to the field of non-invasive ventilators. The breathing mask includes a mask and an air delivery tube mounted on the mask. One side of the mask has a frame adapted to the patient's face, and an air bag is fixedly installed within the frame. An air intake component for inflating the air bag is installed on the frame. A hollow headband is fixedly connected to one side of the frame, and a clamping mechanism for clamping the headband is installed on the other side. The movable end of the headband is used to slide within the clamping mechanism. By inflating the air intake tube, fixing block, air bag, and headband sequentially, the air bag can automatically adjust its shape and pressure distribution according to facial contours and pressure requirements. If a local area is too tight, the air can flow to other areas, ensuring uniform pressure on the headband and stable mask wearing. The silicone air bag further enhances wearing comfort.

Description

Technical Field

[0001] This utility model relates to the field of non-invasive ventilators, specifically a breathing mask for a non-invasive ventilator. Background Technology

[0002] Non-invasive ventilators are medical devices that provide ventilation support to patients without establishing an invasive artificial airway (such as endotracheal intubation or tracheotomy). Non-invasive ventilators are mainly based on positive pressure ventilation. Through interfaces such as breathing masks and nasal masks, a certain pressure of air or oxygen is delivered into the patient's airway, increasing the pressure in the airway and creating a positive pressure environment. During inhalation, the ventilator provides a higher inspiratory pressure to help the patient overcome airway resistance, making it easier for air to enter the lungs and increasing alveolar ventilation. During exhalation, the ventilator provides a relatively lower expiratory pressure to help the patient exhale more easily, while maintaining a certain positive airway pressure to prevent alveolar collapse and improve gas exchange.

[0003] Traditional breathing masks are usually headband-style, and the headband is usually made of elastic material. However, it is difficult to apply pressure evenly during adjustment, which can easily result in some areas being too tight and others being too loose. If it is too tight, it can cause headaches, and if it is too loose, it cannot ensure the mask is worn stably, affecting its effectiveness. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a breathing mask for a non-invasive ventilator, which solves the problem of discomfort when wearing traditional breathing masks.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a breathing mask for a non-invasive ventilator, comprising a mask and an air delivery tube installed on the mask, wherein a frame adapted to the patient's face is provided on one side of the mask, an air bag is fixedly installed inside the frame, an air intake component for inflating the air bag is installed on the frame, a hollow headband is fixedly connected to one side of the frame, and a clamping mechanism for clamping the headband is installed on the other side, the movable end of the headband being used to slide within the clamping mechanism.

[0006] The cavities of the air intake assembly, airbag, and headband are connected in sequence. After inflation, the air intake of the air intake assembly and the outlet of the headband are sealed.

[0007] Preferably, the airbag fits snugly against the patient's face, and the contact surface is curved.

[0008] Preferably, the airbag is made of a flexible material.

[0009] Preferably, the air intake assembly includes a hollow fixing block, an air intake pipe, and a one-way valve. The fixing block is fixed to the frame and communicates with the airbag, the air intake pipe communicates with the fixing block, and the one-way valve is installed inside the air intake pipe.

[0010] Preferably, the headband is made of silicone.

[0011] Preferably, the clamping mechanism includes a fixing member, a handle, a rotating rod, and an arc-shaped member. The fixing member is fixed to the frame, the rotating rod is rotatably connected to the fixing member, the handle and the arc-shaped member are both fixedly connected to the rotating rod, and a torsion spring is fixedly connected between the handle and the fixing member.

[0012] Preferably, the arc-shaped component contacts the headband, and its width is not less than the width of the headband.

[0013] Preferably, elastic bands are fixedly installed on both sides of the fixing block.

[0014] Compared with existing technologies, this utility model has the following advantages: by directly pulling the movable end of the headband, the headband can slide easily along the inside of the fixing component and the arc surface of the arc-shaped component, with low resistance and adjustable position, completing the fixation of the mask to the face in one step, saving time and effort. Patients can operate with one hand without any pressure, and can easily cope even in emergencies or in a semi-conscious state. When adjusting the headband, the gas in the airbag can flow in different areas to achieve automatic pressure balance. When wearing the mask, first fix the headband in the appropriate position, and then inflate the headband through the inflation device. As the gas is injected, the airbag will automatically adjust its shape and pressure distribution according to the facial contour and pressure requirements. If a certain area is too tight, the gas will flow to other areas, so that the pressure of the entire headband is evenly distributed, which not only ensures the stable wearing of the mask, but also effectively reduces the discomfort of the head. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the elastic band structure of this utility model;

[0017] Figure 3 This is a sectional view of the side view of the air intake assembly of this utility model;

[0018] Figure 4 This is a partial sectional view of the airbag and frame of this utility model;

[0019] Figure 5 This is a schematic diagram of the clamping mechanism of this utility model;

[0020] Figure 6 This is a cross-sectional view of the clamping mechanism and headband of this utility model;

[0021] Figure 7 This is a schematic diagram of the airbag structure of this utility model.

[0022] The components include: 1. Mask; 2. Air supply pipe; 3. Frame; 4. Airbag; 5. Air intake assembly; 501. Fixing block; 502. Air intake pipe; 503. One-way valve; 6. Headband; 7. Clamping mechanism; 701. Fixing component; 702. Handle; 703. Rotating rod; 704. Arc-shaped component; 8. Elastic band. Detailed Implementation

[0023] like Figures 1-7 As shown, a breathing mask for a non-invasive ventilator includes a mask 1 and an air delivery tube 2 mounted on the mask 1. The air delivery tube 2 of the mask 1 is connected to the air outlet of the non-invasive ventilator via a breathing tubing. If a threaded tube is used, the connection must be tight to prevent air leakage. One side of the mask 1 has a frame 3 adapted to the patient's face. An air bag 4 is fixedly installed inside the frame 3. The air bag 4 fits snugly against the patient's face, and the contact surface is curved to facilitate a snug fit. The air bag 4 is made of flexible material. The frame 3 is equipped with a device for... The air intake assembly 5 for inflating the airbag 4 includes a hollow fixing block 501, an air intake pipe 502, and a one-way valve 503. The fixing block 501 is fixed to the frame 3 and communicates with the airbag 4. The air intake pipe 502 communicates with the fixing block 501. The one-way valve 503 is installed inside the air intake pipe 502. By injecting gas into the air intake pipe 502, the headband 6 and the airbag 4 can be inflated. Elastic bands 8 are fixedly installed on both sides of the fixing block 501 to further secure the face mask 1. The hollow headband 6 is fixedly connected to one side of the frame 3. The headband 6 is used to secure the breathing mask 1, ensuring the airbag 4 fits stably against the face. The headband 6 is made of silicone, which has good flexibility and elasticity, reducing air leakage. It also has excellent biocompatibility, causing minimal skin irritation and is unlikely to cause allergic reactions even with prolonged contact. On the other side of the frame 3, a clamping mechanism 7 is installed to hold the headband 6 in place. The clamping mechanism 7 includes a fixing member 701, a handle 702, a rotating rod 703, and an arc-shaped member 704. The fixing member 701 is fixed to the frame 3, and the rotating rod 703 is fixed to the handle 704. The fixed part 701 is rotatably connected, and the handle 702 and the arc-shaped part 704 are both fixedly connected to the rotating rod 703. A torsion spring is fixedly connected between the handle 702 and the fixed part 701. When the torsion spring is in the reset state, the arc-shaped part 704 squeezes the headband 6 to prevent the headband 6 from leaking air. When the handle 702 is rotated, the squeezing force of the arc-shaped part 704 on the headband 6 can be reduced, which is conducive to adjusting the tightness of the headband 6 on the patient's head. The arc-shaped part 704 contacts the headband 6, and its width is not less than the width of the headband 6. The movable end of the headband 6 is used to slide within the clamping mechanism 7.

[0024] The cavities of the air intake assembly 5, the airbag 4, and the headband 6 are connected in sequence. After inflation, the air intake of the air intake assembly 5 and the outlet of the headband 6 are sealed.

[0025] In use, the mask 1 is first placed in a suitable position on the patient's face. During the wearing process, the movable end of the headband 6 can be pulled directly, allowing the headband 6 to slide along the inside of the fixing member 701 and also move along the arc surface of the arc-shaped member 704. At this time, the arc-shaped member 704 provides less resistance to the movement of the headband 6, making it easy to adjust the position of the headband 6, thereby fixing the mask 1 to the patient's face. At this time, the frame 3 and the airbag 4 inside it are in contact with the face, and the elastic band 8 is put on the patient's head, further improving the stability of the mask 1. Using the elastic force of the torsion spring, the handle 702 drives the rotating rod 703 to rotate. The rotating rod 703 drives the arc-shaped member 704 to press against the headband 6, causing the movable end of the headband 6 to compress and deform. It is in a sealed state, and then gas is delivered to the air inlet pipe 502 through an inflation device, such as an air pump. Since the air inlet pipe 502, the fixing block 501, the airbag 4 and the headband 6 are connected in sequence, gas can enter the airbag 4 and the headband 6 to inflate the airbag 4. As gas is injected, the airbag 4 will automatically adjust its shape and pressure distribution according to the facial contour and pressure requirements. For example, if a certain area is too tight, the gas will flow to other areas. This is because when a certain area needs more gas to fill to increase pressure, or when a certain area has too much pressure and needs to expel some gas, the gas can flow quickly to meet this change, thereby making the pressure of the entire headband 6 evenly distributed, which not only ensures the stable wearing of the mask 1, but also The silicone airbag 4 further enhances wearing comfort. It should be noted that after inflation, the inflation device must be separated from the air inlet pipe 502 to ensure wearing comfort. The elastic band 8 does not need to be too tight during wear; the expansion force of the airbag 4 will push the elastic band 8 to fit the patient's head. Furthermore, the headband 6 can be tightened after inflation. To do this, pinch the headband 6 near the curved part 704 to prevent gas leakage, then rotate the curved part 704 to the position where it is separated from the headband 6. Then pull the movable end of the headband 6 to tighten it. At this time, some of the gas inside the headband 6 moves with the headband 6 and passes over the curved part 704. After adjustment, release the handle 702 and... The headband 6 is compressed and sealed by the arc-shaped component 704 through the elastic force of the torsion spring. Gas passing over the arc-shaped component 704 is discharged from the air outlet of the headband 6. As the length of the headband 6 is reduced, the gas is also reduced accordingly, so that the air pressure in the airbag 4 remains basically unchanged, ensuring comfort when wearing it. The arc-shaped component 704 will not exceed the compression position on the headband 6. Since the movable end of the headband 6 is sealed by the compression of the arc-shaped plate, it can prevent gas from escaping from the outlet of the cavity inside the headband 6 after inflation. In conjunction with the one-way valve 503 in the air inlet pipe 502, it can prevent gas from escaping from the inlet of the air inlet pipe 502, so as to ensure the stability of the air pressure inside the airbag 4, thereby preventing the airbag 4 from reducing the sealing effect on the face due to gas leakage.

[0026] Subsequently, when too much gas is inflated, the greater the deformation force of the airbag 4, the greater the pressure on the patient's face. Figure 5 As shown, handle 702 needs to be rotated, causing handle 702 to drive rotating rod 703 to rotate. At this time, the torsion spring at handle 702 begins to deform, and rotating rod 703 drives arc-shaped component 704 to rotate, reducing the squeezing force of arc-shaped component 704 on headband 6, thereby releasing some gas to relieve the pressure of airbag 4 on the face. Releasing handle 702, using the elastic force of the torsion spring, allows handle 702 to drive rotating rod 703 to rotate in the opposite direction. Rotating rod 703 drives arc-shaped component 704 to press against headband 6, causing the movable end of headband 6 to compress and deform, returning to a sealed state. Moreover, when arc-shaped component 704 rotates to... Figure 6 When the position shown is reached, the arc-shaped component 704 completely loses its compressive force on the headband 6, making it easy to remove the movable end of the headband 6 from the fixing component 701 and complete the disassembly.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A respiratory mask of a non-invasive respirator, comprising a mask (1) and a gas delivery tube (2) mounted on the mask (1), characterized in that: The mask (1) has a frame (3) on one side that is adapted to the patient’s face. An airbag (4) is fixedly installed inside the frame (3). An air intake component (5) for inflating the airbag (4) is installed on the frame (3). A hollow headband (6) is fixedly connected to one side of the frame (3). A clamping mechanism (7) for clamping the headband (6) is installed on the other side. The movable end of the headband (6) is used to slide inside the clamping mechanism (7). The cavities of the air intake assembly (5), airbag (4) and headband (6) are connected in sequence. After inflation, the air inlet of the air intake assembly (5) and the outlet of the headband (6) are sealed.

2. The respiratory mask of claim 1, wherein: The airbag (4) fits in close contact with the patient's face, and the contact surface is curved.

3. The respiratory mask of claim 1, wherein: The airbag (4) is made of flexible material.

4. The respiratory mask of claim 1, wherein: The air intake assembly (5) includes a hollow fixing block (501), an air intake pipe (502), and a one-way valve (503). The fixing block (501) is fixed to the frame (3) and communicates with the airbag (4). The air intake pipe (502) is communicated with the fixing block (501), and the one-way valve (503) is installed inside the air intake pipe (502).

5. The respiratory mask of claim 1, wherein: The headband (6) is made of silicone.

6. The respiratory mask of claim 1, wherein: The clamping mechanism (7) includes a fixing member (701), a handle (702), a rotating rod (703), and an arc-shaped member (704). The fixing member (701) is fixed to the frame (3), the rotating rod (703) is rotatably connected to the fixing member (701), the handle (702) and the arc-shaped member (704) are both fixedly connected to the rotating rod (703), and a torsion spring is fixedly connected between the handle (702) and the fixing member (701).

7. The respiratory mask of claim 6, wherein: The arc-shaped component (704) contacts the headband (6), and its width is not less than the width of the headband (6).

8. The respiratory mask of claim 4, wherein: Elastic bands (8) are fixedly installed on both sides of the fixing block (501).

Images