Breathing equipment for critical patient

Abstract

The invention relates to the technical field of medical instruments, in particular to critical patient breathing equipment which comprises a breathing machine, the breathing machine is communicated with an air delivery pipe, the other end of the air delivery pipe is communicated with a mask, a cavity is formed in the mask, a turbulent flow assembly is arranged in the middle of the cavity and comprises a piston cylinder, and a partition plate is fixedly connected to the inner side wall of the piston cylinder. A piston head is arranged in the upper cavity in a sliding fit mode, the upper cavity is fixedly communicated with a first one-way electromagnetic valve and a first two-way electromagnetic valve, and the lower cavity is fixedly communicated with a second one-way electromagnetic valve. And the upper chamber is fixedly communicated with a second two-way electromagnetic valve. Through a gas conveying pipe, a piston barrel, a piston head and a second two-way electromagnetic valve, gas is fed into the piston head in the piston barrel through the gas conveying pipe, the piston head is pushed by the gas to do piston head movement in the piston barrel, so that the gas in the piston barrel is pushed to reach the mouth and nose of a patient, and the gas pressure at the mouth and nose of the patient is increased to enter the lung of the patient; therefore, the patient can be helped to fully complete the breathing process.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a breathing device for critically ill patients. Background Art

[0002] Respiratory devices for critically ill patients refer to medical devices designed specifically for critically ill patients to assist or replace their respiratory function. These devices play a vital role in medical environments such as intensive care units and are of great significance in saving patients' lives and reducing complications.

[0003] Generally speaking, when reusing respiratory equipment, the mask needs to be fitted to the patient's face, and then gas is introduced into the mask through the air tube. However, since the breathing of critically ill patients is relatively weak, when gas is introduced into the patient's mouth and nose through the mask, the patient may not be able to fully complete the breathing process due to their own reasons, thus affecting the patient's health recovery.

[0004] In summary, how to solve the problem that critically ill patients cannot fully complete the breathing process due to their own reasons has become a technical problem that technicians in this field need to solve urgently. Therefore, it is necessary to propose a breathing device for critically ill patients. Summary of the invention

[0005] To solve the above problems, the present invention provides a breathing device for critically ill patients, which uses an air pipe, a piston cylinder, a piston head and a second two-way solenoid valve to introduce gas to the piston head in the piston cylinder via the air pipe, and uses the gas to push the piston head to move in the piston cylinder, thereby pushing the gas in the piston cylinder to reach the patient's mouth and nose, increasing the gas pressure at the patient's mouth and nose and entering the patient's lungs, thereby helping the patient to fully complete the breathing process.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a breathing device for critically ill patients, including a ventilator and a millimeter-wave radar sensor, the ventilator is connected to an air pipe, the end of the air pipe away from the ventilator is connected to a mask, a controller is fixedly connected to the surface of the mask, and a fixing component for fixing the mask to the patient's head is provided on one side of the mask.

[0007] The junction between the ventilator and the mask and the air supply pipe is equipped with a blocking component for blocking the air supply pipe. The mask is equipped with a pressure component for monitoring the pressure inside the mask and a sealing component for sealing the gap between the patient's skin and the mask.

[0008] A cavity is opened in the mask, and both ends of the cavity are connected to the inside of the mask. A spoiler component for disturbing the airflow is provided in the middle of the cavity. The spoiler component includes a piston cylinder, which is fixedly connected to the middle of the cavity. A partition plate for dividing the piston cylinder into an upper chamber and a lower chamber is fixedly connected to the inner wall of the piston cylinder. A piston head is slidably fitted in the upper chamber. A first one-way solenoid valve and a first two-way solenoid valve are fixedly connected at the junction of the upper chamber and the cavity, and a second one-way solenoid valve is fixedly connected at the junction of the lower chamber and the cavity.

[0009] A second two-way electromagnetic valve is fixedly connected at the junction of the upper chamber and the mask, and the upper chamber and the lower chamber are connected to each other at a side close to the second two-way electromagnetic valve.

[0010] The controller is used to control the opening and closing of the first one-way solenoid valve, the second one-way solenoid valve, the first two-way solenoid valve and the second two-way solenoid valve respectively, and controls the flow of gas in the piston cylinder by opening and closing the first one-way solenoid valve, the second one-way solenoid valve, the first two-way solenoid valve and the second two-way solenoid valve.

[0011] The technical principle of the above scheme is as follows: gas is introduced into the air supply pipe through the ventilator, and the gas is introduced into the mask through the air supply pipe. The airflow is delivered to the mask through the cavity in the mask. By accurately controlling the opening and closing sequence and time of the first one-way solenoid valve, the second one-way solenoid valve, the first two-way solenoid valve and the second two-way solenoid valve, the controller can guide the piston head to reciprocate in the piston cylinder, and the reciprocating motion of the piston head in the piston cylinder pushes the gas in the cavity into the mask, thereby increasing the pressure of the gas in the mask, and the gas is pressed into the patient's lungs under the action of the gas pressure, thereby helping the patient to fully complete the breathing process.

[0012] The pressure component monitors the pressure in the mask to ensure the stability and safety of the gas supply, while the sealing component ensures a tight fit between the patient's skin and the mask to prevent gas leakage.

[0013] The above scheme has the following beneficial effects:

[0014] 1. When the gas in the air pipe pushes the piston head to reciprocate in the piston cylinder to push the airflow, additional pressure will be generated on the gas in the mask. This additional pressure is conducive to fully squeezing the gas in the mask into the patient's lungs, thereby helping the patient to complete the breathing process more fully.

[0015] 2. When the piston head of the present invention reciprocates in the piston cylinder to push the airflow, it will also disturb the airflow in the mask, promote the air flow in the mask, which is beneficial to reduce the dead zone and carbon dioxide accumulation in the mask, thereby reducing the risk of respiratory-related complications in patients.

[0016] 3. The present invention enhances the air tightness of the gas pipe by adding pressure monitoring and sealing components, thereby improving the safety of patients when using respiratory equipment.

[0017] Furthermore, the blocking assembly includes a plurality of fixed disks, which are respectively mounted and fixedly connected to the connecting points between the ventilator and the air pipe and the connecting points between the air pipe and the mask. A rotating disk is rotatably connected inside the fixed disk. A plurality of first sliding grooves are opened on one side of the fixed disk, and a second sliding groove is opened on the side of the rotating disk close to the first sliding groove. Sliding blocks are slidably matched in the first sliding grooves, and the other side of the sliding blocks is slidably matched with the second sliding grooves. A telescopic part for driving the rotating disk to rotate is fixedly connected to the fixed disk, and the output end of the telescopic part is hinged to the rotating disk; when the air pipe is blocked, the controller controls the telescopic part to start.

[0018] Beneficial effect: When air leakage occurs at the junction of the ventilator and the air pipe, and at the junction of the air pipe and the mask, the telescopic part is started by the controller to quickly drive the rotating disk to rotate, thereby driving the sliding block to slide in the first slide groove and the second slide groove, thereby quickly blocking the air pipe, thereby reducing the harm to the patient caused by air leakage in the air pipe, improving the patient's breathing efficiency, and reducing the occurrence of complications of the patient due to insufficient breathing.

[0019] Furthermore, the pressure assembly includes a first pressure sensor and a second pressure sensor, the first pressure sensor is fixedly connected to the inner wall of the gas pipe, and the second pressure sensor is fixedly connected to the inside of the mask, and the controller is used to receive the gas pressure data monitored by the first pressure sensor and the second pressure sensor.

[0020] Beneficial effects: Through the first pressure sensor and the second pressure sensor, the gas pressure in the gas pipe and the mask can be monitored in real time to ensure the stability and reliability of the gas supply. The controller can determine whether there is abnormal pressure and air leakage in the gas pipe and the mask based on the gas pressure data received by the first pressure sensor and the second pressure sensor, which is beneficial to improve the safety of patients when using respiratory equipment and optimize the treatment effect.

[0021] Furthermore, the sealing assembly includes an airbag, which is fixedly connected to the inner side of the mask and connected to the air pipe. A third two-way solenoid valve is fixedly connected at the connection point between the airbag and the air pipe. The controller is used to control the flow of gas in the airbag by controlling the third two-way solenoid valve.

[0022] Beneficial effects: The airbag design can fit the patient's face closely, forming an effective seal to prevent gas leakage, thereby ensuring the stability and reliability of the sealing effect. The softness of the airbag can reduce the sense of pressure on the face and improve the patient's comfort. At the same time, by controlling the gas flow in the airbag, the fit between the mask and the face can be further adjusted to adapt to the facial contours and breathing needs of different patients.

[0023] Furthermore, the fixing assembly includes a plurality of fixing straps, each of which is fixedly connected to the inner side of the mask, and each of which is fixedly connected to the inner side of the fixing straps with a flexible material.

[0024] Beneficial effects: The fixing straps can ensure that the mask fits tightly to the patient's face, and even when the patient moves or breathes, the stability of the mask can be maintained to prevent it from slipping or shifting. The tight fit of the fixing straps can further improve the sealing between the mask and the face, reduce gas leakage, and ensure that all the gas output by the ventilator can enter the patient's lungs.

[0025] Furthermore, a buzzer is fixedly connected to the outer wall of the mask, and the controller is used to control the buzzer to start and sound an alarm when the telescopic part is started.

[0026] Beneficial effect: When the telescopic part starts to block the gas pipeline, the buzzer can sound an alarm in time to remind medical staff that there is a gas leakage problem in the gas pipeline, which is conducive to medical staff to carry out timely inspection and replacement of the gas pipeline.

[0027] Furthermore, an indicator light for emitting light of different colors is fixedly connected to the surface of the mask.

[0028] Beneficial effect: When there is a leak in the mask or the air pipe, the indicator light can remind medical staff to inspect the respiratory equipment in time, thereby improving the safety of patients receiving respiratory treatment.

[0029] Furthermore, a spiral groove is formed on the inner wall of the gas transmission pipe.

[0030] Beneficial effects: The design of the spiral groove helps to optimize the flow path of the gas and reduce the occurrence of turbulence. The existence of the spiral groove can increase the flow rate of the gas in the gas pipeline. This is because the design of the spiral groove can guide the fluid to form a certain spiral motion along the inner wall of the pipe, thereby increasing the kinetic energy of the gas and increasing the gas flow rate.

[0031] Furthermore, a heating wire is fixedly connected in the spiral groove, and the controller is used to control the heating wire to start heating the gas when the gas pipe is ventilated.

[0032] Beneficial effect: The heating wire is directly fixed in the spiral groove, which can ensure that the heat is directly and efficiently transferred to the gas passing through the gas pipe. Since the spiral groove increases the contact area between the gas and the heating wire, the heating efficiency is higher and the gas can be quickly heated to the required temperature.

[0033] Furthermore, a temperature sensor is fixedly connected to the connection point between the mask and the air supply pipe, and the controller is used to receive temperature data monitored by the temperature sensor.

[0034] Beneficial effects: The temperature sensor can monitor the temperature of the connection between the mask and the air pipe in real time to ensure that the patient can be in the most suitable treatment or breathing environment. Once the temperature is abnormal, the controller can immediately receive and process the data, so as to take timely measures to make adjustments.

[0035] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is an axonometric view of the breathing apparatus for critically ill patients of the present invention.

[0037] Figure 2 For the present invention Figure 1 Enlarged view of part A.

[0038] Figure 3 It is a cross-sectional view of the mask of the present invention.

[0039] Figure 4 For the present invention Figure 3 Enlarged view of part B.

[0040] Figure 5 It is an axonometric view of the fixed disk of the present invention.

[0041] Figure 6 It is an axonometric view of the sliding block of the present invention.

[0042] Figure 7 It is an axonometric view of the rotating disk of the present invention.

[0043] Figure 8 It is a connection diagram of the fixed plate and the electric push rod of the present invention.

[0044] The figure marks in the drawings of the specification include: 1. ventilator; 2. first pressure sensor; 3. air supply pipe; 4. mask; 5. buzzer; 6. indicator light; 7. fixed plate; 8. fixed strap; 9. second pressure sensor; 10. air bag; 11. third two-way solenoid valve; 12. piston cylinder; 13. first one-way solenoid valve; 14. piston head; 15. first two-way solenoid valve; 16. second one-way solenoid valve; 17. partition plate; 18. second two-way solenoid valve; 19. first slide groove; 20. rotating disk; 21. sliding block; 22. second slide groove; 23. electric push rod. DETAILED DESCRIPTION

[0045] The following is further described in detail through specific implementation methods:

[0046] Embodiment 1:

[0047] As attached Figure 1-Figure 7As shown: A respiratory device for critically ill patients, including a ventilator 1 and a millimeter wave radar sensor, the ventilator 1 is connected to an air supply pipe 3, the end of the air supply pipe 3 away from the ventilator 1 is connected to a mask 4, the surface of the mask 4 is fixedly connected to a controller by screws, and one side of the mask 4 is provided with a fixing component for fixing the mask 4 to the patient's head.

[0048] The junctions between the ventilator 1 and the mask 4 and the air supply pipe 3 are all provided with a blocking component for blocking the air supply pipe 3, and the mask 4 is provided with a pressure component for monitoring the pressure inside the mask 4 and a sealing component for sealing the gap between the patient's skin and the mask 4.

[0049] A cavity is opened in the mask 4, and both ends of the cavity are connected to the inner side of the mask 4. A spoiler component for disturbing the airflow is provided in the middle of the cavity. The spoiler component includes a piston cylinder 12, and the piston cylinder 12 is fixedly connected to the middle of the cavity with screws. A partition plate 17 for dividing the piston cylinder 12 into an upper chamber and a lower chamber is fixedly connected with bolts on the inner wall of the piston cylinder 12. A piston head 14 is slidably fitted in the upper chamber. A first one-way solenoid valve 13 and a first two-way solenoid valve 15 are fixedly connected at the junction of the upper chamber and the cavity with screws, and a second one-way solenoid valve 16 is fixedly connected at the junction of the lower chamber and the cavity with screws.

[0050] A second two-way electromagnetic valve 18 is fixedly connected to the junction of the upper chamber and the mask 4 by screws, and the upper chamber and the lower chamber are connected to each other near the second two-way electromagnetic valve 18.

[0051] The controller is used to control the opening and closing of the first one-way solenoid valve 13, the second one-way solenoid valve 16, the first two-way solenoid valve 15 and the second two-way solenoid valve 18 respectively, and controls the flow of gas in the piston cylinder 12 by opening and closing the first one-way solenoid valve 13, the second one-way solenoid valve 16, the first two-way solenoid valve 15 and the second two-way solenoid valve 18.

[0052] like Figure 2 , Figure 5 , Figure 6 and Figure 7 As shown, the blocking assembly includes a plurality of fixed disks 7, which are respectively fixedly connected to the junction of the ventilator 1 and the air pipe 3 and the junction of the air pipe 3 and the mask 4 by screws. A rotating disk 20 is rotatably connected inside the fixed disk 7. A plurality of first slide grooves 19 are opened on one side of the fixed disk 7, and a second slide groove 22 is opened on the side of the rotating disk 20 close to the first slide groove 19. Sliding blocks 21 are slidably matched in the first slide grooves 19, and the other side of the sliding blocks 21 is slidably matched with the second slide grooves 22. A telescopic member for driving the rotating disk 20 to rotate is fixedly connected with screws on the fixed disk 7. In this embodiment, the telescopic member is preferably an electric push rod 23, and the output end of the electric push rod 23 is hinged to the rotating disk 20; when the air pipe 3 is blocked, the controller controls the electric push rod 23 to start.

[0053] like Figure 1 As shown, the pressure assembly includes a first pressure sensor 2 and a second pressure sensor 9. The first pressure sensor 2 is screwed fixedly connected to the inner wall of the gas pipe 3, and the second pressure sensor 9 is screwed fixedly connected to the inner side of the mask 4. The controller is used to receive the gas pressure data monitored by the first pressure sensor 2 and the second pressure sensor 9.

[0054] like Figure 3 As shown, the sealing assembly includes an airbag 10, which is fixedly connected to the inner side of the mask 4 by screws. The airbag 10 is connected to the air pipe 3. A third two-way solenoid valve 11 is fixedly connected to the connection point between the airbag 10 and the air pipe 3 by screws. The controller is used to control the flow of gas in the airbag 10 by controlling the third two-way solenoid valve 11.

[0055] like Figure 2 As shown, the fixing assembly includes a plurality of fixing straps 8, and the fixing straps 8 are all bonded to the inner side of the mask 4 by adhesives. The inner sides of the fixing straps 8 are bonded and fixedly connected with flexible materials. In this embodiment, the flexible material is preferably sponge.

[0056] The outer wall of the mask 4 is fixedly connected with a buzzer 5 by screws, and the controller is used to control the buzzer 5 to start and sound an alarm when the electric push rod 23 is started.

[0057] The specific implementation process is as follows: first, the medical staff fixes the ventilator 1 and fixes the mask 4 to the patient's face through the fixing strap 8. Then the medical staff needs to fix the millimeter-wave radar sensor in a position that can monitor the rise and fall of the patient's chest. In this embodiment, the millimeter-wave radar sensor is fixed to the top of the ventilator 1 by screws. The millimeter-wave radar sensor detects the rise and fall of the patient's chest and judges the patient's breathing state. When the patient's chest rises, the controller determines that the patient is inhaling, and when the patient's chest drops, the controller determines that the patient is exhaling.

[0058] The medical staff can then turn on the ventilator 1 to provide breathing assistance to the patient.

[0059] by Figure 3 For example, at this time, the gas blown out by the ventilator 1 will enter the cavity of the mask 4 through the air supply tube 3, and then reach the patient's face through the two ends of the cavity to provide breathing support for the patient.

[0060] Combination Figure 3 As shown, the medical staff can open the third two-way solenoid valve 11 through the controller, and use the third two-way solenoid valve 11 to introduce gas into the airbag 10. When the airbag 10 fully fits the patient's facial skin, the medical staff can close the third two-way solenoid valve 11 through the controller. At this time, the airbag 10 fully fits the patient's facial skin, thereby reducing gas leakage.

[0061] As the gas continues to pass through the cavity to reach the patient's face, when the millimeter-wave radar sensor detects that the patient's chest is rising and the controller determines that the patient is inhaling, the controller will control the first two-way solenoid valve 15 to open, so that the gas can enter the upper chamber through the first two-way solenoid valve 15, and then the gas will push the piston head 14 to move to the right. At this time, the first one-way solenoid valve 13 and the second one-way solenoid valve 16 are both closed, and the second two-way solenoid valve 18 is opened. At this time, the pushing action of the piston head 14 will push the gas on the right side of the piston head 14 through the second two-way solenoid valve 18 to reach the patient's mouth and nose. At this time, the gas pressure at the patient's mouth and nose will increase. When the gas pressure increases, the gas will enter the patient's lungs more easily, helping the patient to fully complete the breathing process.

[0062] When the millimeter-wave radar sensor detects that the patient's chest is dropping and the controller determines that the patient is exhaling, the controller will control the first two-way solenoid valve 15 and the second two-way solenoid valve 18 to close, and control the first one-way solenoid valve 13 and the second one-way solenoid valve 16 to open, and the gas in the cavity will enter the lower chamber through the second one-way solenoid valve 16, and then the gas will enter the upper chamber through the lower chamber, pushing the piston head 14 to move to the left. At this time, the gas on the left side of the piston head 14 will enter the cavity through the first one-way solenoid valve 13.

[0063] As the patient wears the mask 4 for too long, the air flow in the air pipe 3 will reach the patient's face through the two ends of the cavity, and the gas in the mask 4 may have air blockage in some areas, and carbon dioxide will accumulate. When the gas in the air pipe 3 pushes the piston head 14 to move to the right, the gas will pass through the second two-way solenoid valve 18 to reach the patient's mouth and nose, thereby disturbing the original gas in the mask 4 and reducing the accumulation of gas in the mask 4.

[0064] When gas accumulates in the mask 4 for a long time, the gas will condense into small water droplets on the inner wall of the mask 4 when in contact with the external environment, thereby affecting the patient's comfort. By disturbing the gas in the original mask 4, it is helpful to reduce the condensation of small water droplets in the mask 4.

[0065] by Figure 1 For example, as the patient's use time increases, gas leakage may occur at the junction of the air supply pipe 3 and the ventilator 1, and at the junction of the air supply pipe 3 and the mask 4. When gas leaks, the gas pressure in the mask 4 will be insufficient, which will affect the patient's normal breathing. The pressure change in the air supply pipe 3 can be monitored by the first pressure sensor 2, and the pressure change in the mask 4 can be monitored by the second pressure sensor 9.

[0066] After turning on the ventilator 1, the medical staff will set a preset value for the gas pressure in the controller. When the pressure of the first pressure sensor 2 meets the preset value, but the pressure in the second pressure sensor 9 is lower than the preset value, it indicates that there is a gas leakage at the connection between the gas pipe 3 and the mask 4; when the pressures of the first pressure sensor 2 and the second pressure sensor 9 are both lower than the preset value, it indicates that there is a gas leakage at the connection between the gas pipe 3 and the ventilator 1.

[0067] by Figure 5 , Figure 6 and Figure 7 For example, when gas leaks at different positions, the controller will start the electric push rod 23 at the corresponding position, and the electric push rod 23 will push the rotating disk 20 to rotate counterclockwise. When the rotating disk 20 rotates counterclockwise, the adjacent sliding blocks 21 squeeze each other clockwise. Because the first slide groove 19 and the second slide groove 22 both slide with the sliding block 21, the sliding block 21 will move inward along the first slide groove 19. As the sliding block 21 moves inward along the first slide groove 19, the sliding block 21 will fit with the gas pipe 3, thereby sealing the gas pipe 3 and reducing gas leakage in the gas pipe 3.

[0068] When the controller determines that there is a gas leak in the gas pipe 3 through the changes in pressure data monitored by the first pressure sensor 2 and the second pressure sensor 9, the controller will activate the buzzer 5 to remind medical staff to check and replace the gas pipe 3 as soon as possible.

[0069] Embodiment 2:

[0070] like Figure 2 As shown, the difference from the above embodiment is that an indicator light 6 for displaying different colors is fixedly connected to the surface of the mask 4 by screws.

[0071] The specific implementation process is as follows: when the buzzer 5 sounds an alarm, the staff may not be able to determine the location of the gas leakage in the gas pipe 3 in the first time. At this time, the staff can be reminded by setting an indicator light 6 that can emit light of different colors on the surface of the mask 4. When the pressure of the first pressure sensor 2 meets the preset value, but the pressure in the second pressure sensor 9 is less than the preset value, it means that there is a gas leakage at the connection between the gas pipe 3 and the mask 4. At this time, the indicator light 6 emits a yellow light. When the pressures of the first pressure sensor 2 and the second pressure sensor 9 are both less than the preset value, it means that there is a gas leakage at the connection between the gas pipe 3 and the ventilator 1. At this time, the indicator light 6 emits a red light. By judging the light of the indicator light 6, it is helpful to improve the maintenance efficiency of the gas pipe 3 by the staff.

[0072] Embodiment 3:

[0073] The difference from the above embodiment is that a spiral groove is formed on the inner wall of the gas delivery pipe 3 .

[0074] The specific implementation process is as follows: by opening a spiral groove in the gas pipe 3, the surface area of ​​the inner wall of the gas pipe 3 can be increased, thereby increasing the contact area between the gas and the inner wall of the gas pipe 3, which is beneficial to improving the ventilation efficiency of the gas in the gas pipe 3. The presence of the spiral groove can also guide the gas to flow in a spiral direction, reduce the retention and eddy current of the gas in the gas pipe 3, and further improve the ventilation efficiency.

[0075] Embodiment 4:

[0076] The difference from the above embodiment is that a heating wire is bonded to the adhesive in the spiral groove, and the controller is used to control the heating wire to start heating the gas when the gas pipe 3 is ventilated. A temperature sensor is screwed fixedly connected to the connection between the mask 4 and the gas pipe 3, and the controller is used to receive temperature data monitored by the temperature sensor.

[0077] The specific implementation process is as follows: when the staff starts the ventilator 1, the heating wire can be controlled by the controller for heating. By heating the heating wire, the heating wire will heat the gas in the gas pipe 3. The gas will be fully heated by the heating wire through the spiral groove, thereby quickly increasing the temperature of the gas.

[0078] The temperature of the gas in the mask 4 is monitored by a temperature sensor. When the gas temperature exceeds 35°C, the controller controls the heating wire to be turned off. When the gas temperature is lower than 30°C, the controller controls the heating wire to be turned on.

[0079] When the gas temperature is between 30℃-35℃, the warm gas helps relieve the patient's respiratory dryness and tightness and improves the patient's comfort.

[0080] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A respiratory device for critically ill patients, comprising a ventilator (1) and a millimeter wave radar sensor, characterized in that: The ventilator (1) is connected to an air supply pipe (3), and one end of the air supply pipe (3) away from the ventilator (1) is connected to a mask (4); a controller is fixedly connected to the surface of the mask (4); A fixing assembly for fixing the mask (4) on the patient's head is provided on one side of the mask (4); A blocking component for blocking the air supply pipe (3) is provided at the junction of the respirator (1) and the mask (4) with the air supply pipe (3); The mask (4) is provided with a pressure component for monitoring the pressure inside the mask (4) and a sealing component for sealing the gap between the patient's skin and the mask (4); a cavity is provided inside the mask (4), and both ends of the cavity are connected to the inside of the mask (4); a flow disturbance component for disturbing the airflow is provided in the middle of the cavity; The spoiler assembly comprises a piston cylinder (12), the piston cylinder (12) is fixedly connected to the middle of the cavity, a partition plate (17) is fixedly connected to the inner wall of the piston cylinder (12) for dividing the piston cylinder (12) into an upper chamber and a lower chamber, a piston head (14) is slidably fitted in the upper chamber, a first one-way solenoid valve (13) and a first two-way solenoid valve (15) are fixedly connected at the junction of the upper chamber and the cavity, and a second one-way solenoid valve (16) is fixedly connected at the junction of the lower chamber and the cavity; A second two-way electromagnetic valve (18) is fixedly connected at the junction of the upper chamber and the mask (4), and the upper chamber and the lower chamber are connected to each other on one side close to the second two-way electromagnetic valve (18); The controller is used to control the opening and closing of the first one-way solenoid valve (13), the second one-way solenoid valve (16), the first two-way solenoid valve (15) and the second two-way solenoid valve (18) respectively, and the flow of gas in the piston cylinder (12) is controlled by opening and closing the first one-way solenoid valve (13), the second one-way solenoid valve (16), the first two-way solenoid valve (15) and the second two-way solenoid valve (18).

2. The critically ill patient breathing apparatus according to claim 1, characterized in that The blocking component comprises a plurality of fixing plates (7); the fixing plates (7) are respectively sleeved and fixedly connected to the connection points between the ventilator (1) and the air supply pipe (3) and the connection points between the air supply pipe (3) and the mask (4); A rotating disk (20) is rotatably connected in the fixed disk (7); a plurality of first sliding grooves (19) are formed on one side of the fixed disk (7); a second sliding groove (22) is formed on the side of the rotating disk (20) close to the first sliding groove (19); a sliding block (21) is slidably matched in the first sliding groove (19); and the other side of the sliding block (21) is slidably matched with the second sliding groove (22); A telescopic member for driving the rotating disk (20) to rotate is fixedly connected to the fixed disk (7), and an output end of the telescopic member is hinged to the rotating disk (20); when the gas transmission pipe (3) is blocked, the controller controls the telescopic member to start.

3. The critically ill patient breathing apparatus according to claim 2, characterized in that The pressure assembly comprises a first pressure sensor (2) and a second pressure sensor (9); the first pressure sensor (2) is fixedly connected to the inner wall of the gas delivery pipe (3); the second pressure sensor (9) is fixedly connected to the inner side of the mask (4); and the controller is used to receive gas pressure data monitored by the first pressure sensor (2) and the second pressure sensor (9).

4. The critically ill patient breathing apparatus according to claim 3, characterized in that The sealing component comprises an airbag (10); the airbag (10) is fixedly connected to the inner side of the mask (4); the airbag (10) is connected to the air supply pipe (3); a third two-way electromagnetic valve (11) is fixedly connected to the connection point between the airbag (10) and the air supply pipe (3); and a controller is used to control the flow of gas in the airbag (10) by controlling the third two-way electromagnetic valve (11).

5. The critically ill patient breathing apparatus according to claim 4, characterized in that The fixing assembly comprises a plurality of fixing straps (8), each of which is fixedly connected to the inner side of the mask (4), and each of which is fixedly connected to the inner side of the fixing straps (8) with a flexible material.

6. The critically ill patient breathing apparatus according to claim 5, characterized in that A buzzer (5) is fixedly connected to the outer wall of the mask (4), and the controller is used to control the buzzer (5) to start and sound an alarm when the telescopic member is started.

7. The critically ill patient breathing apparatus according to claim 6, characterized in that An indicator light (6) for emitting light of different colors is fixedly connected to the surface of the mask (4).

8. The critically ill patient breathing apparatus according to claim 7, characterized in that The inner wall of the gas delivery pipe (3) is provided with a spiral groove.

9. The critically ill patient breathing apparatus according to claim 8, characterized in that An electric heating wire is fixedly connected in the spiral groove, and the controller is used to control the electric heating wire to start heating the gas when the gas pipe (3) is ventilated.

10. The critically ill patient breathing apparatus according to claim 9, characterized in that A temperature sensor is fixedly connected to the connection point between the mask (4) and the air supply pipe (3), and the controller is used to receive temperature data monitored by the temperature sensor.

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