Mask device for coma patient

Abstract

The invention provides a mask device for an unconscious patient, which comprises a base, a rotatable mounting disc is arranged on the base, a connecting arm is hinged to the mounting disc, a connecting frame is hinged to the end part of the connecting arm, a mounting frame is rotatably arranged on the connecting frame, and the rotating axis of the mounting frame is perpendicular to the rotating axis of the connecting frame. A rotatable mounting cylinder is arranged at the end part of the mounting frame, a telescopic rod is fixedly arranged on the connecting arm, the telescopic rod is connected with the base, the mounting disc, the connecting frame, the mounting frame and the mounting cylinder through a fixing mechanism, and a mask main body is arranged at the bottom of the mounting cylinder. When the device is used, the mask can be placed on the face of an unconscious patient, then the position of the mask body is fixed, the whole fixing process of the mask body can be completed in a very short time, oxygen therapy can be conducted on the unconscious patient in time, binding bands are not needed for fixing, and the face of the patient is effectively prevented from being bruised.

Description

Technical Field

[0001] The present invention particularly relates to a mask device for a comatose patient. Background Art

[0002] Although unconscious, a comatose patient's organs and tissues are still metabolizing and require sufficient oxygen to maintain normal physiological functions. The comatose patient's respiratory center may be suppressed, resulting in a weakened respiratory drive and irregular or abnormal breathing rate and depth. Oxygen administration via a face mask can increase the oxygen concentration in the inhaled gas and the oxygen partial pressure within the alveoli, thereby promoting the diffusion of oxygen into the blood, increasing blood oxygen saturation, and improving the hypoxia caused by weakened respiratory function.

[0003] For example, Chinese patent publication number CN210170625U provides a breathing mask for treating comatose patients. When in use, the mask connects the regulating box to the oxygen cylinder through the gas supply connector, and then the rotating shaft is rotated by turning the handle. The rotation of the rotating shaft drives the baffle to rotate together. When the baffle is rotated to be parallel to the gas pipe, the gas supply speed is the highest. When the baffle is rotated to be perpendicular to the gas pipe, the gas supply speed is the lowest due to the blocking effect of the baffle, thereby achieving the effect of controlling the amount of oxygen supplied.

[0004] However, traditional strap-on masks present numerous inconveniences when used on comatose patients. These include the complexity of donning and securing the mask, the inability to provide timely oxygen to the patient, and the tendency for the straps to be too tight to cause skin compression after prolonged use. In light of these issues, a mask device for comatose patients has been proposed to address these technical issues. Summary of the Invention

[0005] In response to the shortcomings of the existing technology, the present invention proposes a mask device for comatose patients to solve the many inconveniences of the traditional strap-type mask proposed in the above-mentioned background technology when used on comatose patients, such as the complexity of wearing and fixing, the inability to provide oxygen to the patient in a timely manner, and the technical problems that the patient's skin may be compressed due to the straps being too tight after long-term use.

[0006] To achieve the above object, the present invention provides the following technical solution: a mask device for a comatose patient, comprising: A base, wherein a rotatable mounting plate is provided on the base, a connecting arm is hingedly connected to the mounting plate, and an end of the connecting arm is hingedly connected to a connecting frame; A mounting frame is rotatably disposed on the connecting frame, with its rotation axis being perpendicular to the rotation axis of the connecting frame, and a rotatable mounting cylinder is disposed at an end of the mounting frame; a telescopic rod fixedly mounted on the connecting arm and connected to the base, mounting plate, connecting frame, mounting frame and mounting tube via a fixing mechanism; and The mask body is arranged at the bottom of the mounting tube.

[0007] Furthermore, the fixing mechanism includes: Four groups of fixing rods are provided, two of which are slidably mounted on the mounting plate, and the other two groups are slidably mounted on the connecting frame. Friction plates are provided at the ends of the fixing rods, and the ends of one of the fixing rods provided on the mounting plate and the connecting frame extend straight into the connecting arm. There are four groups of abutment discs, which are spaced apart and located on one side of the four groups of friction discs, wherein two groups of abutment discs are arranged in the connecting arm, one group of abutment discs is arranged on the base, and the other group of abutment discs is arranged on the mounting frame; an arc-shaped fixing plate, slidably disposed in the opening of the mounting frame, aligned with the mounting tube, and rotatably connected to one set of ends of the fixing rods; and A linkage assembly is provided at the end of the telescopic rod and connected to the plurality of fixed rods to convert the extension and retraction of the telescopic rod into driving the plurality of fixed rods to slide synchronously.

[0008] Furthermore, the linkage component includes: A connecting plate is provided at the telescopic end of the telescopic rod, and connecting wheels are provided on the two sets of fixed rods located in the connecting arm, and the connecting wheels are rotatably provided on the connecting plate; A first transmission part is provided on one set of fixing rods on the mounting plate and is connected to the other set of fixing rods on the mounting plate to drive the two sets of fixing rods on the mounting plate to slide simultaneously; and The second transmission part is arranged on one group of fixed rods on the connecting frame and connected to the other group of fixed rods on the connecting frame to drive the two groups of fixed rods on the connecting frame to slide simultaneously.

[0009] Furthermore, the first transmission part includes: A first inclined track is provided on a set of the fixing rods located on the mounting plate; and The first driving column is arranged at the end of the other group of fixing rods located on the mounting plate, and the first driving column is slidably clamped in the first inclined track.

[0010] Furthermore, the second transmission part includes: A second inclined track is provided on a set of the fixing rods located on the connecting frame; and The second driving column is arranged at the end of the other group of the fixing rods located on the connecting frame, and the second driving column is slidably clamped in the second inclined track.

[0011] Furthermore, a lifting cylinder is slidably provided on the mounting cylinder, an abutment frame is provided at the end of the lifting cylinder, and a plurality of groups of first elastic members are provided between the abutment frame and the mask body.

[0012] Furthermore, an abutting frame is provided on the lifting cylinder, and a second elastic member is provided between the abutting frame and the inner wall of the mounting cylinder.

[0013] Furthermore, an alarm is provided on the mounting frame, a receiving block connected by a connecting rod is provided in the abutment frame, a mounting rod is slidably passed through the lifting cylinder, a clamping frame is provided on the mounting rod, the receiving block is rotatably provided in the clamping frame, a button is provided in the clamping frame, the button is connected to the alarm, there is a gap between the button and the receiving block, and a locking assembly is provided on the mounting cylinder, through which the sliding of the arc-shaped fixing plate is converted into an optional locking or unlocking of the position of the mounting rod.

[0014] Furthermore, the locking assembly includes: A slider is slidably arranged on the side wall of the mounting tube, and a movable frame is arranged on the slider; a third elastic member, disposed at an end of the movable frame and abutting against an inner wall of the mounting tube; and The fixed teeth are arranged on the movable frame. A rack is provided on the mounting rod along its axis. The fixed teeth can be clamped on the rack.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. When the mask device is in use, in the initial state, the mounting plate, the connecting frame, the mounting frame and the mounting cylinder are all in a movable state and are not fixed. When the patient becomes comatose and needs oxygen supply, the medical staff can directly place the mask body on the patient's face. During the movement of the mask body, the mounting plate can rotate on the base, one end of the connecting arm can rotate on the mounting plate, the connecting frame can rotate at the other end of the connecting arm, and the mounting cylinder can rotate in the mounting frame to adapt to the position change of the mask body and enable the mask to be moved to any position, and then the telescopic end of the telescopic rod is controlled to extend. During the extension process of the telescopic rod, the positions of the mounting plate, the connecting frame, the mounting frame and the mounting cylinder can be quickly fixed by the fixing mechanism, thereby fixing the position of the mask body. The entire fixing process of the mask body can be completed in a very short time, so that oxygen can be supplied to the comatose patient in time, and no strap is required for fixation, which effectively avoids pressure injuries to the patient's face.

[0016] 2. When securing the mask body, the mask device applies a slight downward pressure on the mounting cylinder, causing the lifting cylinder to slide along the sidewall of the mounting cylinder, driving the abutment frame to move within the mounting cylinder, compressing the first and second elastic members. During this movement, the abutment frame, through the cooperation of the receiving block and the clamping frame, drives the mounting rod to follow the movement. Multiple sets of first elastic members apply multi-directional downward pressure to the mask body, ensuring that the mask body remains in contact with the patient's face even with minor head movement. While the securing mechanism secures the mounting plate, connecting frame, and mounting frame, it also drives the curved fixing plate to engage with the mounting cylinder, securing their positions. The curved fixing plate also pushes the slider to slide within the mounting cylinder, causing the fixed teeth on the movable frame to engage with the rack on the mounting rod, securing the mounting rod. If the mask falls off due to significant head movement or awakening, the second elastic member causes the abutment frame to move downward, driving the receiving block to press a button, thereby controlling an alarm to sound an alarm and alert medical personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a mask device for a comatose patient provided by the present invention; Figure 2 This is a schematic diagram of the installation structure of the mounting plate, connecting arm and connecting frame in a mask device for a comatose patient of the present invention; Figure 3 This is a schematic structural diagram of a disassembled connecting arm and parts above it in a mask device for a comatose patient according to the present invention; Figure 4 This is a schematic structural diagram of a fixing rod in a mask device for a comatose patient according to the present invention; Figure 5 This is a schematic structural diagram of a mounting frame in a mask device for a comatose patient according to the present invention; Figure 6 for Figure 5 Schematic diagram of the structure after splitting; Figure 7 This is a schematic diagram of the internal structure of a mounting cylinder in a mask device for a comatose patient according to the present invention; Figure 8 for Figure 7 A magnified schematic diagram of area A in the middle.

[0019] Reference numerals: 1. Base; 2. Mounting plate; 3. Connecting arm; 4. Connecting frame; 5. Mounting frame; 6. Alarm; 7. Telescopic rod; 8. Connecting plate; 9. Fixed rod; 10. Connecting wheel; 11. Friction plate; 12. Abutment plate; 13. First driving column; 14. First inclined track; 15. Second inclined track; 16. Second driving column; 17. Arc-shaped fixing plate; 18. Mounting cylinder; 19. Mask body; 20. Abutment frame; 21. First elastic member; 22. Lifting cylinder; 23. Abutment frame; 24. Second elastic member; 25. Connecting rod; 26. Support block; 27. Mounting rod; 28. Rack; 29. Snap-on frame; 30. Button; 31. Movable frame; 32. Slider; 33. Third elastic member; 34. Fixed tooth. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Those skilled in the art can make some non-essential improvements and adjustments to the present invention based on the above application content.

[0021] Example: like Figure 1 As shown, the present invention provides a mask device for a comatose patient, comprising a base 1, a rotatable mounting plate 2 disposed on the base 1, a connecting arm 3 hingedly connected to the mounting plate 2, a connecting frame 4 hingedly connected at the end of the connecting arm 3, a mounting frame 5 rotatably disposed on the connecting frame 4, the rotation axis of the mounting frame 5 being perpendicular to the rotation axis of the connecting frame 4, a rotatable mounting cylinder 18 disposed at the end of the mounting frame 5, and a mask body 19 disposed at the bottom of the mounting cylinder 18. The device can be fixed to a bedside for use. When a patient becomes comatose, the mask body 19 can be directly moved to the patient's face. During the movement of the mask body 19, the mounting plate 2 rotates on the base 1, which in turn drives the connecting arm 3 to swing on the mounting plate 2, drives the connecting frame 4 to rotate at the end of the connecting arm 3, drives the mounting frame 5 to rotate on the connecting frame 4, and simultaneously causes the mounting cylinder 18 to rotate on the mounting frame 5, thereby adapting to changes in the position of the mask body 19 and conveniently and quickly moving the mask body 19 to any desired position.

[0022] like Figures 1 to 3As shown, in this embodiment, a telescopic rod 7 is provided on the connecting arm 3, and the telescopic rod 7 is connected to the base 1, the mounting plate 2, the connecting frame 4, the mounting frame 5 and the mounting tube 18 through a fixing mechanism. The fixing mechanism includes four groups of fixing rods 9, two groups of fixing rods 9 are slidably penetrated on the mounting plate 2, and the other two groups of fixing rods 9 are slidably penetrated on the connecting frame 4. Friction discs 11 are provided at the ends of the fixing rods 9. The ends of one group of fixing rods 9 arranged on the mounting plate 2 and the connecting frame 4 are straightened into the connecting arm 3, and also include four groups of abutment discs 12. The four groups of abutment discs 12 are respectively spaced apart and located on one side of the four groups of friction discs 11, two groups of abutment discs 12 are arranged in the connecting arm 3, one group of abutment discs 12 is arranged on the base 1, and the other group of abutment discs 12 is arranged on the mounting frame 5.

[0023] Since the four sets of fixing rods 9 are all slidably mounted, the fixing rods 9 can drive the friction discs 11 to move and abut against the abutment discs 12 after sliding, thereby fixing the corresponding movable parts through friction. It is understood that the friction discs 11 and abutment discs 12 can adopt rubber contact surfaces or frosted contact surfaces. In addition, an arc-shaped fixing plate 17 is slidably disposed within the opening of the mounting frame 5. The arc-shaped fixing plate 17 is aligned with the mounting tube 18 and is rotatably connected to the end of one set of fixing rods 9. During the rotation of the mounting frame 5, the arc-shaped fixing plate 17 can follow the movement and rotate at the end of one set of fixing rods 9. During the sliding of one set of fixing rods 9, the arc-shaped fixing plate 17 is driven to slide with it, so that the arc-shaped fixing plate 17 is engaged with the mounting tube 18 and the position of the mounting tube 18 on the mounting frame 5 is fixed by friction. Similarly, the contact surface between the arc-shaped fixing plate 17 and the mounting tube 18 can be made of rubber or frosted material.

[0024] like Figures 1 to 4 As shown, in this embodiment, the fixing mechanism also includes a linkage assembly provided at the end of the telescopic rod 7 and connected to multiple groups of fixed rods 9. The linkage assembly converts the extension and contraction of the telescopic rod 7 into driving the multiple groups of fixed rods 9 to slide synchronously. The linkage assembly includes a connecting plate 8 provided at the telescopic end of the telescopic rod 7. The connecting plate 8 is located in the connecting arm 3, and the two groups of fixed rods 9 located in the connecting arm 3 are provided with connecting wheels 10. The connecting wheels 10 are rotatably provided on the connecting plate 8. In the process of controlling the extension and contraction of the telescopic rod 7, the connecting plate 8 can be driven to move. During the movement, the connecting plate 8 drives the fixed rods 9 to slide by cooperating with the connecting wheels 10. The fixed rods 9 can rotate on the connecting plate 8 to avoid interfering with the movement of the two ends of the connecting arm 3. During the movement, the connecting plate 8 can cause the corresponding two groups of friction discs 11 to abut against the abutment discs 12 to fix the movable joints at the two ends of the connecting arm 3.

[0025] like Figure 2 、 3As shown, in this embodiment, the linkage assembly further includes a first transmission portion provided on one of the groups of fixed rods 9 located on the mounting plate 2. The first transmission portion is connected to the other group of fixed rods 9 located on the mounting plate 2 to drive the two groups of fixed rods 9 located on the mounting plate 2 to slide simultaneously. The first transmission portion includes a first inclined track 14 provided on one group of fixed rods 9 located on the mounting plate 2. The ends of the other group of fixed rods 9 located on the mounting plate 2 are provided with first drive posts 13, which are slidably engaged in the first inclined track 14. During the sliding process of one group of fixed rods 9 located on the mounting plate 2, the first drive posts 13 are driven to slide. During the movement process, the first drive posts 13 can control the sliding of the other group of fixed rods 9 by cooperating with the first inclined track 14, so that the friction disc 11 at the end thereof abuts against the abutment disc 12 on the base 1.

[0026] like Figures 2 to 6 As shown, in this embodiment, the linkage assembly also includes a second transmission part arranged on one group of fixed rods 9 located on the connecting frame 4 and connected to the other group of fixed rods 9 located on the connecting frame 4, and the second transmission part drives the two groups of fixed rods 9 located on the connecting frame 4 to slide simultaneously. The second transmission part includes a second inclined track 15 arranged on one group of fixed rods 9 located on the connecting frame 4, and a second drive column 16 is provided at the end of the other group of fixed rods 9 located on the connecting frame 4. The second drive column 16 is slidably clamped in the second inclined track 15. Similarly, it can be obtained that one group of fixed rods 9 located on the connecting frame 4 drives the second inclined track 15 to move during the sliding process. Since the second drive column 16 can only move along the axis of the corresponding fixed rod 9, the second inclined track 15 can drive the group of fixed rods 9 installed on the mounting frame 5 to move during the movement by cooperating with the second drive column 16, so as to fix the position of the mounting frame 5 and the mounting cylinder 18.

[0027] like Figure 6 、 7 As shown, in this embodiment, a lifting cylinder 22 is slidably provided on the mounting cylinder 18, an abutment frame 20 is provided at the end of the lifting cylinder 22, and multiple groups of first elastic members 21 are provided between the abutment frame 20 and the mask body 19. An abutment frame 23 is provided on the lifting cylinder 22, and a second elastic member 24 is provided between the abutment frame 23 and the inner wall of the mounting cylinder 18.

[0028] During the placement of the mask body 19, the mounting tube 18 is pressed downward with a little force, so that the lifting tube 22 slides on the side wall of the mounting tube 18, driving the abutment frame 23 to move in the mounting tube 18 to compress the first elastic member 21 and the second elastic member 24. Multi-directional downward pressure is applied to the mask body 19 through multiple groups of first elastic members 21. Even if the patient's head moves slightly, the first elastic member 21 can ensure that the mask body 19 always fits the patient's face.

[0029] like Figures 5 to 8 As shown, in this embodiment, an alarm 6 is provided on the mounting frame 5, a receiving block 26 connected by a connecting rod 25 is provided in the abutment frame 23, a mounting rod 27 is slidably passed through the lifting cylinder 22, a clamping frame 29 is provided on the mounting rod 27, the receiving block 26 is rotatably set in the clamping frame 29, a button 30 is provided in the clamping frame 29, the button 30 is connected to the alarm 6, and there is a gap between the button 30 and the receiving block 26, and a locking assembly is provided on the mounting cylinder 18, through which the sliding of the arc-shaped fixing plate 17 is converted into an optional locking or unlocking of the position of the mounting rod 27. The locking assembly includes a slider 32 slidably arranged on the side wall of the mounting tube 18, a movable frame 31 is provided on the slider 32, and a third elastic member 33 is provided at the end of the movable frame 31 to abut against the inner wall of the mounting tube 18, a fixed tooth 34 is provided on the movable frame 31, and a rack 28 is provided on the mounting rod 27 along its axis, and the fixed tooth 34 can be clamped on the rack 28.

[0030] During its movement, the abutment frame 23 drives the mounting rod 27 to follow its movement through the cooperation of the receiving block 26 and the clamping frame 29. While the fixing mechanism secures the mounting plate 2, connecting frame 4, and mounting frame 5, it also drives the arc-shaped fixing plate 17 to engage with the mounting cylinder 18 to secure its position. The arc-shaped fixing plate also pushes the slider 32 to slide within the mounting cylinder 18, causing the fixed teeth 34 on the movable frame 31 to engage with the rack 28 on the mounting rod 27, thereby securing the mounting rod 27. If the patient's head moves significantly or the patient awakens, causing the mask body 19 to fall off, the second elastic member 24 causes the abutment frame 23 to move downward, driving the receiving block 26 to press the button 30, thereby controlling the alarm 6 to sound an alarm and alert medical personnel.

[0031] Specific usage and beneficial effects of the present invention: When the mask device is in use, in the initial state, the mounting plate 2, the connecting frame 4, the mounting frame 5 and the mounting tube 18 are all in a movable state and are not fixed. When the patient becomes comatose and needs oxygen supply, the medical staff can directly place the mask body 19 on the patient's face. During the movement of the mask body 19, the mounting plate 2 can be rotated on the base 1, one end of the connecting arm 3 can be rotated on the mounting plate 2, the connecting frame 4 can be rotated at the other end of the connecting arm 3, and the mounting tube 18 can be rotated in the mounting frame 5 to adapt to the position change of the mask body 19 and enable the mask to be moved to any position, and then the telescopic end of the telescopic rod 7 is controlled to extend. During the extension process of the telescopic rod 7, the positions of the mounting plate 2, the connecting frame 4, the mounting frame 5 and the mounting tube 18 can be quickly fixed by the fixing mechanism, thereby fixing the position of the mask body 19. The entire fixing process of the mask body 19 can be completed in a very short time, so that oxygen can be supplied to the comatose patient in time, and no strap is required to fix it, effectively avoiding pressure injuries to the patient's face.

[0032] The basic principles, main features, and advantages of the present invention are shown and described above. It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above. Modifications and improvements may be made based on the present invention, as will be apparent to those skilled in the art. Therefore, such modifications and improvements, without departing from the spirit of the present invention, are intended to fall within the scope of protection claimed in the present invention.

Claims

1. A mask device for a comatose patient, characterized in that: Includes: A base (1), wherein a rotatable mounting plate (2) is provided on the base (1), a connecting arm (3) is hingedly connected to the mounting plate (2), and an end of the connecting arm (3) is hingedly connected to a connecting frame (4); A mounting frame (5) is rotatably arranged on the connecting frame (4), and its rotation axis is perpendicular to the rotation axis of the connecting frame (4); a rotatable mounting cylinder (18) is provided at the end of the mounting frame (5); A telescopic rod (7) is fixedly mounted on the connecting arm (3) and is connected to the base (1), the mounting plate (2), the connecting frame (4), the mounting frame (5) and the mounting cylinder (18) via a fixing mechanism; and The mask body (19) is arranged at the bottom of the mounting tube (18).

2. A mask device for a comatose patient according to claim 1, characterized in that: The fixing mechanism includes: Four groups of fixing rods (9) are provided, wherein two groups of fixing rods (9) are slidably mounted on the mounting plate (2), and the other two groups of fixing rods (9) are slidably mounted on the connecting frame (4), and friction plates (11) are provided at the ends of the fixing rods (9), and the ends of one group of fixing rods (9) provided on the mounting plate (2) and the connecting frame (4) are straightened into the connecting arm (3); Four groups of abutment discs (12) are provided and are spaced apart and located on one side of the four groups of friction discs (11), wherein two groups of abutment discs (12) are provided in the connecting arm (3), one group of abutment discs (12) is provided on the base (1), and the other group of abutment discs (12) is provided on the mounting frame (5); An arc-shaped fixing plate (17) is slidably disposed in the opening of the mounting frame (5), aligned with the mounting cylinder (18), and rotatably connected to the end of one set of the fixing rods (9); and A linkage assembly is provided at the end of the telescopic rod (7) and is connected to the plurality of fixed rods (9) to convert the telescopic movement of the telescopic rod (7) into driving the plurality of fixed rods (9) to slide synchronously.

3. A mask device for a comatose patient according to claim 2, characterized in that: The linkage components include: A connecting plate (8) is provided at the telescopic end of the telescopic rod (7), and connecting wheels (10) are provided on the two sets of fixed rods (9) located in the connecting arm (3), and the connecting wheels (10) are rotatably provided on the connecting plate (8); A first transmission part is provided on one set of fixed rods (9) located on the mounting plate (2) and is connected to another set of fixed rods (9) located on the mounting plate (2) to drive the two sets of fixed rods (9) located on the mounting plate (2) to slide simultaneously; and The second transmission part is arranged on one set of fixed rods (9) located on the connecting frame (4) and connected to the other set of fixed rods (9) located on the connecting frame (4) to drive the two sets of fixed rods (9) located on the connecting frame (4) to slide simultaneously.

4. A mask device for a comatose patient according to claim 3, characterized in that: The first transmission part includes: A first inclined track (14) is provided on a set of the fixing rods (9) located on the mounting plate (2); and A first driving column (13) is provided at the end of another set of the fixing rods (9) located on the mounting plate (2), and the first driving column (13) is slidably clamped in the first inclined track (14).

5. A mask device for a comatose patient according to claim 3, characterized in that: The second transmission part includes: A second inclined track (15) is provided on a group of the fixing rods (9) located on the connecting frame (4); and The second driving column (16) is arranged at the end of another set of the fixing rods (9) located on the connecting frame (4), and the second driving column (16) is slidably clamped in the second inclined track (15).

6. A mask device for a comatose patient according to claim 2, characterized in that: A lifting cylinder (22) is slidably provided on the mounting cylinder (18), an abutment frame (20) is provided at the end of the lifting cylinder (22), and a plurality of groups of first elastic members (21) are provided between the abutment frame (20) and the mask body (19).

7. A mask device for a comatose patient according to claim 6, characterized in that: An abutment frame (23) is provided on the lifting cylinder (22), and a second elastic member (24) is provided between the abutment frame (23) and the inner wall of the installation cylinder (18).

8. A mask device for a comatose patient according to claim 7, characterized in that: An alarm (6) is provided on the mounting frame (5), a receiving block (26) connected by a connecting rod (25) is provided in the abutting frame (23), a mounting rod (27) is slidably passed through the lifting cylinder (22), a clamping frame (29) is provided on the mounting rod (27), the receiving block (26) is rotatably provided in the clamping frame (29), a button (30) is provided in the clamping frame (29), the button (30) is connected to the alarm (6), and there is a gap between the button (30) and the receiving block (26), and a locking assembly is provided on the mounting cylinder (18), through which the sliding of the arc-shaped fixing plate (17) is converted into a selective locking or unlocking of the position of the mounting rod (27).

9. A mask device for a comatose patient according to claim 8, characterized in that: The locking assembly includes: A slider (32) is slidably disposed on a side wall of the mounting cylinder (18), and a movable frame (31) is disposed on the slider (32); a third elastic member (33) disposed at an end of the movable frame (31) and abutting against an inner wall of the mounting tube (18); and The fixed tooth (34) is arranged on the movable frame (31), and a rack (28) is provided on the mounting rod (27) along its axis. The fixed tooth (34) can be clamped on the rack (28).

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