Anti-pressure mask for breathing machine

Abstract

The utility model relates to medical instrument technical field, concretely is a kind of anti-pressing face mask for breathing machine, including the seat of fit, the top of seat of fit is connected with breathing mask, when water drop gathers and falls when condensation appears in breathing mask inner wall, it will fall into collecting groove and be collected, and through opening sealing plug, water drop is discharged from drain hole in time, avoid that water drop condensation water drop can gather too much in breathing mask, influence the respiration of patient, and the gel pad of setting in seat bottom its soft material property can be fitted with the face of patient, and can prevent the facial skin and subcutaneous tissue of patient from ischemia and form pressure injury.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically to a pressure-resistant face mask for a ventilator. Background Technology

[0002] In clinical practice, for patients with mild to moderate respiratory failure who do not require emergency intubation and whose vital signs are relatively stable, non-invasive mechanical ventilation is generally used for early intervention and assisted weaning. Non-invasive mechanical ventilation typically requires a face mask, which is connected to the oxygen supply device and placed over the patient's nose and mouth to provide oxygen and improve hypoxia. However, to ensure a secure and airtight fit, existing face masks often exert pressure on the patient's facial skin. Prolonged wear can cause discomfort and, in severe cases, pressure injuries to the facial skin and subcutaneous tissue in contact with the mask. Furthermore, some patients require intermittent mask use during oxygen therapy or need to drink water or eat while wearing the mask, necessitating repeated mask removal and insertion, which is inconvenient.

[0003] Existing technology, such as CN217311517U, provides a pressure injury prevention mask for ventilators, including a mask body and a forehead protector base connected to the mask body via a telescopic rod. Fixing straps are provided on both sides of the mask body and the forehead protector base. The mask body includes a hollow mask base, with a cover hinged to one side of the mask base to close onto it. At least one locking structure is provided at the end of the mask base and the cover away from their hinged ends, and the mask base and the cover are locked together and opened / closed via this locking structure. An exhaust port and an air inlet for connection to an external ventilator are provided on the outer surface of the cover. Pressure-reducing pads are provided at the end of the mask base and the forehead protector base that is close to the patient's face, and a detachable gel sleeve that conforms to the patient's face during operation is provided on each pressure-reducing pad. This invention has the advantages of being easy to use, preventing pressure injuries, and minimizing patient discomfort during prolonged wear.

[0004] However, in actual use, when the warm, moist air exhaled by a patient encounters the relatively cool inner wall of the breathing mask, water vapor condenses. This temperature difference is more pronounced, for example, when using a breathing mask in a cold environment or when the temperature of the delivered gases, such as oxygen, is low. Human exhaled air contains a large amount of water vapor, and under normal circumstances, the temperature of exhaled air is close to body temperature (approximately 37°C). When this warm, moisture-rich air comes into contact with the cooler inner wall of the mask, water vapor condenses into small droplets, much like water droplets forming on a windowpane in winter. These condensed droplets can affect the ventilation function of the breathing mask. If there are too many droplets, they can block the ventilation holes or airflow channels of the breathing mask, leading to poor airflow. This can cause patients to experience increased breathing resistance, insufficient oxygen intake, or insufficient ventilation pressure, affecting the treatment effect. Furthermore, the presence of water droplets provides a favorable environment for the growth of bacteria, viruses, and other microorganisms. If a patient has a weakened immune system, such as a critically ill patient or a patient with a chronic disease who uses a breathing mask for a long time, microorganisms that multiply in water droplets may be inhaled into the respiratory tract, increasing the risk of respiratory infection. Therefore, we propose a pressure-resistant mask for ventilators. Utility Model Content

[0005] The purpose of this utility model is to provide a pressure relief mask for a ventilator. This pressure relief mask for a ventilator solves the problem that water vapor will condense and excessive water droplets will block the ventilation holes or airflow channels of the ventilator, resulting in poor gas flow.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A pressure-resistant face mask for a ventilator includes a fitting base, the top of which is fitted and connected to the breathing mask.

[0008] A pressure ring is fixedly connected to the bottom of the inner wall of the breathing mask, and a manifold is provided on the top of the pressure ring to collect water droplets condensed inside the breathing mask.

[0009] Preferably, the bottom of the manifold is provided with a drain hole, the drain hole extends to the outside of the breathing mask, and a sealing plug is provided at the end of the drain hole outside the breathing mask.

[0010] Preferably, a gel pad is fixedly connected to the bottom of the fitting seat for conforming to the facial contours.

[0011] Preferably, an air chamber is provided at the top of the fitting seat corresponding to the pressure ring, and a partition ring is fixedly connected to the inner wall of the air chamber to divide the air chamber into two annular spaces. Sliding rings are slidably connected to the inner and outer rings of the air chamber respectively.

[0012] Preferably, multiple spring pieces are fixedly connected between the bottom of the slip ring and the inner wall of the air chamber, and the spring pieces are evenly distributed at the bottom of the slip ring.

[0013] Preferably, the bottom of the partition ring is provided with connecting holes for connecting the air chambers on both sides of the partition ring, and the top of the partition ring is provided with an air intake hole corresponding to the position of each connecting hole.

[0014] Preferably, a sealing sleeve is fixedly connected to the bottom of the breathing mask for fitting the outer wall of the fitting seat. Elastic bands are fixedly connected to both sides of the sealing sleeve, and a buckle is fixedly connected to the end of the elastic band away from the sealing sleeve.

[0015] By employing the above technical solution, this utility model provides a pressure-resistant mask for ventilators. It possesses at least the following beneficial effects:

[0016] I. When water droplets condense on the inner wall of the breathing mask and fall down, they will fall into the collection channel for collection. By opening the sealing plug, the water droplets will be discharged from the drain hole in time, which will prevent the water droplets from accumulating too much in the breathing mask and affecting the patient's breathing. In addition, the gel pad at the bottom of the fit seat is made of soft material that can fit the patient's face and prevent the patient's facial skin and subcutaneous tissue from ischemia and pressure injury.

[0017] II. When wearing this utility model, the patient places the fitting seat on the designated position on the face, then fastens the buckles on both sides of the breathing mask to the patient's ears, and then attaches the breathing mask to the fitting seat. By pressing the pressure ring against the slip ring, the slip ring is kept close to the pressure ring under the action of the elastic plate at the bottom of the slip ring to facilitate sealing. When the elastic plate pushes the slip ring to slide out of the air chamber, a negative pressure is generated in the air chamber, which causes the air inlet at the connecting hole to draw in air. The negative pressure generated by the inhalation makes the pressure ring further press against the slip ring, making the fit tighter and ensuring its airtightness. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention, form part of this application:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the bonding seat in this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the air chamber in this utility model;

[0022] Figure 4 This is a schematic diagram of the slip ring structure in this utility model;

[0023] Figure 5This is a schematic diagram of the internal structure of the breathing mask in this utility model.

[0024] In the diagram: 1. Fitting seat; 11. Gel pad; 12. Air chamber; 13. Spacing ring; 14. Connecting hole; 15. Inhalation hole; 16. Slip ring; 17. Spring; 2. Breathing mask; 21. Pressure ring; 22. Manifold; 23. Drain hole; 24. Sealing plug; 25. Sealing sleeve; 26. Elastic band; 27. Buckle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] A type of pressure-resistant mask for ventilators, such as Figure 1 - Figure 4 As shown, the device includes a fitting seat 1, with a breathing mask 2 attached to the top of the fitting seat 1. A pressure ring 21 is fixedly connected to the bottom of the inner wall of the breathing mask 2. A manifold 22 is provided on the top of the pressure ring 21 to collect water droplets condensed inside the breathing mask 2. A drain hole 23 is provided at the bottom of the manifold 22, extending to the outside of the breathing mask 2. A sealing plug 24 is provided at the end of the drain hole 23 outside the breathing mask 2. A gel pad 11 is fixedly connected to the bottom of the fitting seat 1 to conform to the facial contour. The soft material of the gel pad 11 can conform to the patient's face and prevent ischemia of the patient's facial skin and subcutaneous tissue, thus preventing pressure injury.

[0027] In this embodiment, when water droplets condense on the inner wall of the breathing mask 2 and fall down, they will fall into the manifold 22 for collection. The water droplets will be discharged from the drain hole 23 in time by opening the sealing plug 24, so as to avoid the water droplets condensing too much in the breathing mask 2 and affecting the patient's breathing.

[0028] like Figure 2 , Figure 3 , Figure 4As shown, preferably, an air chamber 12 is provided at the top of the fitting seat 1 corresponding to the pressure ring 21. A partition ring 13 is fixedly connected to the inner wall of the air chamber 12, dividing the air chamber 12 into two annular spaces. Sliding rings 16 are slidably connected to the inner and outer rings of the partition ring 13 on the inner wall of the air chamber 12, respectively. Multiple spring pieces 17 are fixedly connected between the bottom of the sliding ring 16 and the inner wall of the air chamber 12, and the spring pieces 17 are evenly distributed at the bottom of the sliding ring 16. A sealing sleeve 25 is fixedly connected to the bottom of the breathing mask 2 for fitting the outer wall of the fitting seat 1. Elastic bands 26 are fixedly connected to both sides of the sealing sleeve 25, and a buckle 27 is fixedly connected to the end of the elastic band 26 away from the sealing sleeve 25.

[0029] In this embodiment, when the patient wears the mask, the fitting seat 1 is placed on the designated position on the face, and the buckles 27 on both sides of the breathing mask 2 are fastened to the patient's ears. The breathing mask 2 is then attached to the fitting seat 1. By pressing the pressure ring 21 against the slip ring 16, the slip ring 16 is kept close to the pressure ring 21 under the tension of the bottom spring piece 17 of the slip ring 16 to facilitate sealing.

[0030] like Figure 3 As shown, preferably, the bottom of the partition ring 13 is provided with connecting holes 14 for connecting the air chamber 12 to the space on both sides of the partition ring 13, and the top of the partition ring 13 is provided with an air intake hole 15 corresponding to the position of each connecting hole 14.

[0031] In this embodiment, when the tension of the spring 17 pushes the slip ring 16 to slide out of the air chamber 12, a negative pressure will be generated in the air chamber 12, which will cause the air intake hole 15 at the connecting hole 14 to draw in air. The negative pressure generated by the air intake will cause the pressure ring 21 to press against the slip ring 16 further to make the fit tighter and ensure its airtightness. When it is necessary to remove the breathing mask 2, the breathing mask 2 can be easily removed by pushing it.

[0032] When the pressure-resistant mask for a ventilator of this utility model is in use, when water droplets condense on the inner wall of the mask 2 and fall down, they will fall into the manifold 22 for collection. The water droplets will be discharged from the drain hole 23 by opening the sealing plug 24. When the patient wears it, first place the fitting seat 1 on the designated position on the face, then fasten the rings 27 on both sides of the mask 2 to the patient's ears, and then attach the mask 2 to the fitting seat 1. The pressure ring 21 presses the slip ring 16 tightly. Under the action of the tension of the spring 17 at the bottom of the slip ring 16, the slip ring 16 is always close to the pressure ring 21 to facilitate sealing. When the tension of the spring 17 pushes the slip ring 16 to slide out of the air chamber 12, a negative pressure will be generated in the air chamber 12, which will cause the inhalation hole 15 at the connecting hole 14 to draw in air. The negative pressure generated by the inhalation will make the pressure ring 21 press further against the slip ring 16, making the fit even tighter.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] 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 pressure-resistant face mask for a ventilator, comprising a fitting base (1), characterized in that: The top of the fitting seat (1) is fitted and connected to the breathing mask (2); A pressure ring (21) is fixedly connected to the bottom of the inner wall of the breathing mask (2), and a manifold (22) is provided on the top of the pressure ring (21) for collecting water droplets condensed inside the breathing mask (2); The bottom of the manifold (22) is provided with a drain hole (23), which extends to the outside of the breathing mask (2), and a sealing plug (24) is provided at the end of the drain hole (23) outside the breathing mask (2). An air chamber (12) is provided at the top of the fitting seat (1) corresponding to the pressure ring (21). A partition ring (13) is fixedly connected to the inner wall of the air chamber (12) to divide the air chamber (12) into two annular spaces. Sliding rings (16) are slidably connected to the inner and outer rings of the partition ring (13) respectively. Multiple spring pieces (17) are fixedly connected between the bottom of the slip ring (16) and the inner wall of the air chamber (12), and the spring pieces (17) are evenly distributed at the bottom of the slip ring (16); The bottom of the partition ring (13) is provided with connecting holes (14) to connect the air chamber (12) to the space on both sides of the partition ring (13). The top of the partition ring (13) is provided with an air intake hole (15) corresponding to the position of each connecting hole (14).

2. The anti-pressure mask for a ventilator according to claim 1, characterized in that: The bottom of the fitting seat (1) is fixedly connected to a gel pad (11) for fitting the facial contour.

3. The anti-pressure mask for a ventilator according to claim 1, characterized in that: The bottom of the breathing mask (2) is fixedly connected to a sealing sleeve (25) for fitting on the outer wall of the fitting seat (1). The two sides of the sealing sleeve (25) are respectively fixedly connected to elastic bands (26), and the end of the elastic band (26) away from the sealing sleeve (25) is fixedly connected to a buckle (27).

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