Ventilator mask

Abstract

This utility model discloses a ventilator mask, including a mask body and a flexible pad. The flexible pad is disposed along the edge of the mask body and connected to the mask body. It also includes a flexible block. The flexible pad has a notch located on the left or right side of the mask body, extending from the inner side of the flexible pad to the outer side. The notch walls on both sides of the notch are concentric arc-shaped surfaces. The flexible block is cylindrical in shape, embedded in the notch and conforming to the notch wall. The lower end of the flexible block has a gastric tube opening that matches a gastric tube, and the gastric tube opening is radially disposed along the flexible block. The flexible block can be rotated so that the gastric tube opening faces the notch wall or is in the same direction as the notch. For patients with gastric tubes, the flexible block is rotated so that the gastric tube opening is in the same direction as the notch, allowing the gastric tube to pass through both the gastric tube opening and the notch. The gastric tube opening matches the gastric tube; that is, the size of the gastric tube opening is designed according to the existing gastric tube diameter, ensuring that the wall of the gastric tube opening is basically in contact with the gastric tube, thereby guaranteeing the sealing effect of the mask.

Description

Technical Field

[0001] This utility model relates to the field of hospital supplies, and in particular to a ventilator mask. Background Technology

[0002] A ventilator mask is a ventilator accessory used to connect to the tubing of a ventilator and cover the patient's mouth and nose for mechanical ventilation. It includes a mask body and a flexible pad. The flexible pad is set along the edge of the mask body and connected to the mask body. The mask body is used to cover the patient's mouth and nose, while the flexible pad is used to fit against the patient's face to maintain a seal between the ventilator mask and the patient's face.

[0003] Patients on ventilators often cannot feed themselves and require a feeding tube, which is inserted into the stomach through the nose or mouth. Since the face mask covers the mouth and nose, the feeding tube must extend beyond the mask. Currently, a common method is to pass the feeding tube directly between the ventilator mask and the patient's face. This causes the mask to lift, creating a gap between it and the face. This gap is then filled with gauze, cotton balls, etc., to maintain a seal. However, this method is not very effective at sealing, and patient movement can easily cause the gauze or cotton balls to fall out. Therefore, the sealing effect and reliability of this method are not very good. Mask leakage can affect the oxygen concentration inside the mask and impact the patient's ventilation efficacy. A better solution is desirable. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a ventilator mask that can be passed through a gastric tube.

[0005] The technical solution adopted to solve the above-mentioned technical problems is as follows: The ventilator mask includes a mask body and a flexible pad, the flexible pad being set along the edge of the mask body and connected to the mask body; it also includes a flexible block; the flexible pad has a notch, the notch being located on the left or right side of the mask body, the notch extending from the inner side of the flexible pad to the outer side, and the notch walls on both the front and rear sides of the notch being concentric arc-shaped surfaces; the flexible block is cylindrical in shape, the flexible block is embedded in the notch and fits against the notch wall, the lower end of the flexible block has a gastric tube opening that matches the gastric tube, the gastric tube opening being set radially along the flexible block; the flexible block can be rotated so that the gastric tube opening faces the notch wall or is in the same direction as the notch.

[0006] Furthermore, the gastric tube opening is U-shaped.

[0007] Furthermore, the ventilator mask includes a knob; the knob includes a knob body and a connecting rod connected together; the connecting rod passes through the mask body and is connected to a flexible block, the knob body is in contact with the upper surface of the mask body, the upper surface of the flexible block is in contact with the mask body, and the lower surface of the flexible block is flush with the lower surface of the flexible pad.

[0008] Furthermore, both the flexible pad and the flexible block are made of silicone.

[0009] Furthermore, the gastric tube opening includes a circular hole and a slit extending from the lower surface of the flexible block to the circular hole.

[0010] Furthermore, the flexible blocks come in multiple sizes, with different diameters of the circular holes for each size; one size of flexible block is inserted into the notch, while the remaining flexible blocks are spares and can replace the original flexible block.

[0011] Furthermore, the ventilator mask includes a knob; a rigid connecting sleeve is provided on the flexible block; the knob includes a knob body and a connecting rod connected together, the end of the connecting rod is a square connecting part, the connecting rod passes through the mask body, the square connecting part is inserted into the rigid connecting sleeve and is interference-fitted with the rigid connecting sleeve, the knob body is in contact with the upper surface of the mask body; the upper surface of the flexible block is in contact with the mask body, and the lower surface of the flexible block is flush with the lower surface of the flexible pad.

[0012] Furthermore, the flexible pad is made of silicone; the flexible block, except for the rigid connecting sleeve, is also made of silicone.

[0013] The beneficial effects of this invention are: for patients without a gastric tube, this invention is used as follows... Figure 3 As shown, the flexible block rotates until the gastric tube opening faces the notch wall. At this point, the flexible block seals the notch, and the flexible pad and flexible block fit against the patient's face, preventing the ventilator mask from leaking.

[0014] For patients with implanted gastric tubes, this invention is used as follows: Figure 5 As shown, the flexible block rotates until the gastric tube opening and notch are aligned, allowing the gastric tube to pass through both. The gastric tube opening matches the gastric tube; that is, the size of the gastric tube opening is designed based on the existing gastric tube diameter, ensuring that the wall of the gastric tube opening is essentially in contact with the gastric tube, thus guaranteeing the sealing effect of the mask.

[0015] It is evident that this invention is applicable to both patients without a gastric tube and patients with a gastric tube. When used for patients with a gastric tube, it can still ensure the sealing effect of the mask, which is beneficial to ensuring the efficacy of mechanical ventilation. Furthermore, the sealing effect does not change due to patient movement, and it is highly reliable. Attached Figure Description

[0016] Figure 1 This is the front view of the ventilator mask;

[0017] Figure 2 This is a top view of a ventilator mask;

[0018] Figure 3 This is a top view of the ventilator mask (without the gastric tube).

[0019] Figure 4 It is a bottom view of the cut and the flexible block;

[0020] Figure 5This is a top view of the ventilator mask (through the gastric tube);

[0021] Figure 6 yes Figure 2 AA cross-sectional view (first type of gastric tube opening);

[0022] Figure 7 yes Figure 2 AA cross-sectional view (second type of gastric tube opening);

[0023] Reference numerals: 1. Cover body; 2. Flexible pad; 21. Notch; 22. Notch wall; 3. Flexible block; 31. Gastric tube opening; 311. Round hole; 312. Slit; 32. Rigid connecting sleeve; 4. Knob; 41. Knob body; 42. Connecting rod; 42. Square connecting part. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] like Figures 1 to 5 As shown, the ventilator mask includes a mask body 1 and a flexible pad 2. The flexible pad 2 is disposed along the edge of the mask body 1 and connected to the mask body 1. It also includes a flexible block 3. The flexible pad 2 has a notch 21, which is located on the left or right side of the mask body 1. The notch 21 extends from the inner side of the flexible pad 2 to the outer side. The notch walls 22 on the front and back sides of the notch 21 are concentric arc-shaped surfaces. The flexible block 3 is cylindrical in shape. The flexible block 3 is embedded in the notch 21 and fits against the notch wall 22. The lower end of the flexible block 3 has a gastric tube opening 31 that matches the gastric tube. The gastric tube opening 31 is disposed radially along the flexible block 3. The flexible block 3 can be rotated so that the gastric tube opening 31 faces the notch wall 22 or is in the same direction as the notch 21.

[0026] For patients without a gastric tube, this invention is used as follows: Figure 3 As shown, the flexible block 3 rotates until the gastric tube opening 331 faces the notch wall 22. At this time, the flexible block 3 closes the notch, and the flexible pad 2 and the flexible block 3 fit against the patient's face, so the ventilator mask does not leak air.

[0027] For patients with implanted gastric tubes, this invention is used as follows: Figure 5 As shown, the flexible block 3 rotates until the gastric tube opening 331 and the notch 21 are in the same direction, allowing the gastric tube to pass through both the opening 331 and the notch 21. The gastric tube opening 331 is matched with the gastric tube, meaning that the size of the gastric tube opening 331 is designed according to the existing gastric tube diameter, which allows the wall of the gastric tube opening 331 to basically fit the gastric tube, thereby ensuring the sealing effect of the mask.

[0028] It is evident that this invention is applicable to both patients without a gastric tube and patients with a gastric tube. When used for patients with a gastric tube, it can still ensure the sealing effect of the mask, which is beneficial to ensuring the efficacy of mechanical ventilation. Furthermore, the sealing effect does not change due to patient movement, and it is highly reliable.

[0029] The gastric tube opening 31 can be specifically described as follows: Figure 6 As shown, the gastric tube opening 31 is U-shaped. This makes it easy for the gastric tube to enter the opening 31. However, there is a small gap between the gastric tube and the lower part of the opening 31. This gap is small and within the clinically acceptable range. If a better seal is desired, a small cotton ball can be placed in this gap.

[0030] The flexible block 3 is embedded in the notch 21, and its vertical movement and fall out should be prevented. Specific methods include... Figure 6 As shown, the ventilator mask includes a knob 4; the knob 4 includes a knob body 41 and a connecting rod 42 connected together; the connecting rod 42 passes through the mask body 1 and is connected to the flexible block 3; the knob body 41 is in contact with the upper surface of the mask body 1; the upper surface of the flexible block 3 is in contact with the mask body 1; and the lower surface of the flexible block 3 is flush with the lower surface of the flexible pad 2.

[0031] The knob body 41 is attached to the upper surface of the cover 1, and the upper surface of the flexible block 3 is attached to the cover 1, thus preventing the flexible block 3 from moving up and down. The notch 21 and the hole through which the connecting rod 42 on the cover 1 passes restrict the translation of the flexible block 3, thus achieving the connection of the flexible block 3, which can only rotate.

[0032] The gastric tube opening 31 can also be specifically as follows Figure 7 As shown, the gastric tube opening 31 includes a circular hole 311 and a slit 312 extending from the lower surface of the flexible block 3 to the circular hole 311. Because the flexible block 3 is deformable, the gastric tube can also be flattened. By opening the slit 312 or both opening the slit 312 and flattening the gastric tube, the gastric tube can enter the circular hole 311. The size of the circular hole 311 matches the diameter of the gastric tube, and the wall of the circular hole 311 fits snugly against the gastric tube, resulting in a good seal.

[0033] Currently, hospitals may use gastric tubes in different sizes. Pediatric gastric tubes come in outer diameters of 8mm, 10mm, and 12mm; adult gastric tubes come in outer diameters of 12mm, 14mm, 16mm, 18mm, and 20mm. To ensure a seamless seal between the round hole 311 and the gastric tube, and to match different sizes of gastric tubes, the flexible block 3 is preferably available in multiple sizes, with different diameters for the round hole 311. One size of flexible block 3 is inserted into the notch 21, while the remaining flexible blocks 3 are spares and can be used to replace it. By replacing the flexible blocks 3 with different sizes, it can be matched with gastric tubes of different sizes, ensuring the best sealing effect.

[0034] The specific methods for achieving the installation and replacement of flexible block 3 can be as follows: Figure 7 As shown, the ventilator mask includes a knob 4; a rigid connecting sleeve 32 is provided on the flexible block 3; the knob 4 includes a knob body 41 and a connecting rod 42 connected together, the end of the connecting rod 42 is a square connecting part 421, the connecting rod 42 passes through the mask body 1, the square connecting part 421 is inserted into the rigid connecting sleeve 32 and is press-fitted with the rigid connecting sleeve 32, the knob body 41 is in contact with the upper surface of the mask body 1; the upper surface of the flexible block 3 is in contact with the mask body 1, and the lower surface of the flexible block 3 is flush with the lower surface of the flexible pad 2.

[0035] The knob body 41 is fitted against the upper surface of the cover 1, and the upper surface of the flexible block 3 is fitted against the cover 1, thus preventing the flexible block 3 from moving up and down. The notch 21 and the hole through which the connecting rod 42 on the cover 1 passes restrict the translation of the flexible block 3; the flexible block 3 can only rotate. The square connecting part 421 is inserted into the rigid connecting sleeve 32 and is interference-fitted with the rigid connecting sleeve 32. The interference amount of this interference fit should be small to ensure that the knob body 41 can be pulled off with force to separate the flexible block 3 from the knob body 41. Pulling the knob body 41 upwards with force can separate the flexible block 3 from the knob body 41; selecting a suitable size flexible block 3 and pressing it against the knob body 41 with force can connect the flexible block 3 to the knob body 41. The cross-sectional shape of the square connecting part 421 is rectangular, which can prevent the flexible block 3 and the knob body 41 from rotating relative to each other.

[0036] In terms of materials, the flexible pad 2 and flexible block 3 can be made of silicone, while the remaining components of the ventilator mask can be made of plastic.

Claims

1. A ventilator mask, comprising a mask body (1) and a flexible pad (2), wherein the flexible pad (2) is disposed along the edge of the mask body (1) and connected to the mask body (1); characterized in that: Includes a flexible block (3); the flexible pad (2) has a notch (21) located on the left or right side of the cover (1), the notch (21) extends from the inside to the outside of the flexible pad (2), and the notch wall (22) on the front and back sides of the notch (21) is a concentric arc surface; the flexible block (3) is cylindrical in shape, the flexible block (3) is embedded in the notch (21) and fits against the notch wall (22), the lower end of the flexible block (3) has a gastric tube opening (31) that matches the gastric tube, the gastric tube opening (31) is arranged radially along the flexible block (3); the flexible block (3) can be rotated so that the gastric tube opening (31) faces the notch wall (22) or is in the same direction as the notch (21).

2. The ventilator mask according to claim 1, characterized in that: The gastric tube opening (31) is U-shaped.

3. The ventilator mask according to claim 2, characterized in that: Includes a knob (4); the knob (4) includes a knob body (41) and a connecting rod (42) connected together; the connecting rod (42) passes through the cover (1) and is connected to the flexible block (3), the knob body (41) is attached to the upper surface of the cover (1), the upper surface of the flexible block (3) is attached to the cover (1), and the lower surface of the flexible block (3) is flush with the lower surface of the flexible pad (2).

4. The ventilator mask according to claim 3, characterized in that: Both the flexible pad (2) and the flexible block (3) are made of silicone.

5. The ventilator mask according to claim 1, characterized in that: The gastric tube opening (31) includes a round hole (311) and a slit (312) extending from the lower surface of the flexible block (3) to the round hole (311).

6. The ventilator mask according to claim 5, characterized in that: The flexible block (3) has multiple specifications, and the diameter of the round hole (311) of the flexible block (3) of different specifications is different; one specification of flexible block (3) is embedded in the notch (21), and the other flexible blocks (3) are spares and can replace the flexible block (3).

7. The ventilator mask according to claim 6, characterized in that: Includes a knob (4); a rigid connecting sleeve (32) is provided on the flexible block (3); the knob (4) includes a knob body (41) and a connecting rod (42) connected together, the end of the connecting rod (42) is a square connecting part (421), the connecting rod (42) passes through the cover (1), the square connecting part (421) is inserted into the rigid connecting sleeve (32) and is press-fitted with the rigid connecting sleeve (32), the knob body (41) is in contact with the upper surface of the cover (1); the upper surface of the flexible block (3) is in contact with the cover (1), and the lower surface of the flexible block (3) is flush with the lower surface of the flexible pad (2).

8. The ventilator mask according to claim 7, characterized in that: The flexible pad (2) is made of silicone; the flexible block (3) is made of silicone except for the rigid connecting sleeve (32).

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