Respiratory training device capable of monitoring tidal volume for tracheal intubation patient

Abstract

The invention relates to the technical field of medical treatment, and discloses a respiratory training device capable of monitoring tidal volume for a tracheal intubation patient, the respiratory training device comprises a connecting tube, the bottom of the connecting tube is fixedly connected with a tube body, the bottom of the tube body is fixedly connected with a tap, and the two sides of the tap are fixedly connected with a connector tube and a training tube respectively; branch pipes are fixedly connected to the front portion and the rear portion of the right end of the training pipe respectively, when gas passes through the branch pipes, a gas flow sensor in a humidity detector can sense the gas, a specific numerical value is displayed on a display screen on the front side of the humidity detector through processing of a DSP controller, and on the basis of the humidity value, the real-time monitoring of the real-time monitoring of the real-time monitoring of the real-time monitoring of the real-time monitoring of the real-time monitoring of the real-time monitoring is achieved. When a patient subsequently uses the breathing machine communicated with the connector tube to assist in breathing, medical staff can be helped to set the air inlet amount and the air suction amount of the breathing machine, and meanwhile the medical staff can be helped to judge whether breathing of the patient reaches a normal value or not according to the tidal value so as to judge whether extubation of a lung intubation can be carried out or not.

Description

Technical Field

[0001] This invention relates to the field of medical technology, specifically to a breathing training device for endotracheal intubation patients that can monitor tidal volume. Background Technology

[0002] Tracheostomy is a surgical procedure in which a specially designed tracheostomy tube is inserted after cutting open the cervical trachea to maintain airway patency, improve ventilation, and drain lower respiratory tract secretions. Patients are prone to lung infections after tracheostomy. Effective respiratory training can improve the strength and endurance of respiratory muscles, reduce inflammatory exudate in the lungs, promote the expulsion of inflammatory substances and sputum, and enable patients to wean themselves off regular bronchoscopic suctioning treatment and restore normal breathing patterns as soon as possible.

[0003] For example, patent number CN215231272U discloses a breathing training device for patients with endotracheal intubation, including a cavity tube. The top end of the cavity tube is connected to an endotracheal tube, and the bottom end of the cavity tube is connected to a main tube. A suction tube is connected to the side wall of the main tube. A sputum collection tube is spirally connected to the end of the suction tube. The free end of the sputum collection tube is connected to an outlet tube. An inclined baffle is provided inside the main tube below the suction tube. A branch tube is connected to the bottom end of the main tube below the inclined baffle. A connecting tube and a training tube are connected to the free end of the branch tube. A vibration sound-generating plate is embedded at the connection between the branch tube and the main tube. A training observation catheter is spirally connected to the free end of the training tube. Both the upper and lower ends of the inner lumen of the training observation catheter are connected to circular plates, and ventilation holes are opened on the circular plates. This utility model has a reasonable structural design, strong practicality, and excellent market promotion value.

[0004] In the process of developing this application, the following problems were discovered with the technology. The device has at least the following areas for optimization during use. First, when the patient is breathing freely, the training tube lacks a design to adjust the resistance of gas flow and outflow during breathing. Adding this design would better help the patient train their breathing. Second, the training tube also lacks a filtration design. When the patient inhales dust, it may worsen their condition. Finally, when patients are training their breathing, they often alternate between free breathing and ventilator-assisted therapy. However, this device also lacks the ability to detect the tidal volume of gas during the patient's free breathing. Therefore, it cannot correctly guide the amount of gas delivered by the ventilator when the connecting tube is connected to the ventilator. At the same time, it cannot determine when to remove the endotracheal tube based on the amount of exhaled and expired air during the patient's free breathing. Therefore, in order to optimize the above-mentioned problems, this invention provides a breathing training device for endotracheal intubated patients that can monitor tidal volume. Summary of the Invention

[0005] The purpose of this invention is to provide a breathing training device for endotracheal intubation patients that can monitor tidal volume in order to solve the problems mentioned above.

[0006] The technical solution adopted in this invention is as follows: A respiratory training device for endotracheal intubation patients capable of monitoring tidal volume includes a connecting tube, a tube body fixedly connected to the bottom of the connecting tube, a tap fixedly connected to the bottom of the tube body, a receiving tube and a training tube fixedly connected to both sides of the tap, a branch tube fixedly connected to the front and rear of the right end of the training tube, a one-way valve provided at the position of each of the two branch tubes near the training tube, a resistance device, a tidal detector and an end tube fixedly connected sequentially to the outer wall of the branch tube on the right side of the one-way valve, a DSP controller fixedly installed on the top of the tidal detector, and a gas flow sensor electrically connected to the DSP controller fixedly installed in the inner cavity of the tidal detector.

[0007] The right side of the end tube is threaded with a connecting tube, and the right side of the connecting tube is fitted with a filter tube. The outer end of the filter tube is provided with a filter screen. The upper and lower ends of the filter tube are slidably fitted with spherical blocks. The inner cavity of the connecting tube is provided with a spherical groove that matches the spherical blocks, and the spherical blocks are fitted into the spherical groove. Inside the connecting tube, at the outer end of the spherical blocks, a sliding rod is slidably fitted with a corresponding sliding rod. The outer end of the sliding rod is fixedly fitted with a push plate inserted into the outer wall of the connecting tube.

[0008] The inner cavity of the resistance device is slidably fitted with a slide tube, which has densely distributed No. 2 air holes. The right end of the slide tube is fixedly connected to a vent pipe, and the top of the slide tube is fixedly fitted with a slider that slides inside the resistance device. The slider is threadedly connected to a threaded rod.

[0009] In a preferred embodiment of the invention, the top of the connecting tube is connected to the endotracheal tube, and the left end of the connecting tube is connected to the ventilator tubing.

[0010] In a preferred embodiment of the invention, valve No. 1 and valve No. 2 are rotatably mounted above the receiving tube and training tube, respectively.

[0011] In a preferred embodiment of the invention, the one-way valves on the front branch pipe and the one-way valves on the rear branch pipe are configured to allow media to flow in opposite directions.

[0012] In a preferred embodiment of the invention, a numerical display screen is provided on the front side of the moisture detector, and a numerical indicator needle is fixedly installed on the front side of the DSP controller.

[0013] In a preferred embodiment of the invention, the outer wall of the end tube is provided with a thread on the right side, the inner wall of the left side of the connecting tube is provided with a threaded groove, a fixing plate is fixedly installed inside the end tube, and through-tubes distributed in a circumferential manner are installed through the outer periphery of the fixing plate. The right end of the fixing plate is connected to a connecting tube by a No. 3 spring, and the outer periphery of the connecting tube is provided with a No. 1 air hole distributed in a circumferential manner.

[0014] In a preferred embodiment of the invention, the filter tube has a first groove adapted to the spherical block, and the inner end of the spherical block is connected to the first groove by a first spring.

[0015] In a preferred embodiment of the invention, a second sliding groove adapted to the sliding rod is provided inside the connecting tube, and a second spring is sleeved on the outer periphery of the sliding rod.

[0016] In a preferred embodiment of the invention, the inner cavity of the resistance is located on the left side of the slide tube with a diameter larger than its right side diameter, the left end of the slide tube is a closed structure, and the vent tube is connected to the second air hole through the inner cavity of the slide tube.

[0017] In a preferred embodiment of the invention, the resistance device has a third sliding groove adapted to the slider, and a knob with a rotation scale on the outer wall is rotatably mounted on the top surface of the resistance device. The bottom end of the knob's rotating shaft and the right end of the threaded rod are both fixedly mounted with meshing bevel gears.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] 1. In this invention, by installing one-way valves and tidal detectors on both branch lines, when a patient needs to perform free breathing training, the connecting tube can be connected to the patient's endotracheal tube first. Then, the first valve at the top of the ventilator connection tube is closed, while the second valve on the training tube is opened simultaneously. This allows the patient to breathe freely through the two branch lines connected by the training tube. Because the one-way valves on the front and rear branch lines allow media flow in opposite directions, the patient's inhalation and exhalation are performed separately through the front and rear branch lines, respectively. This design avoids the situation where excessively long tubing leads to most of the exhaled air being reabsorbed into the lungs. Simultaneously, when gas passes through the branch tubing, the gas flow sensor within the tidal detector is activated, and the specific value is displayed on the screen in front of the tidal detector after processing by the DSP controller. Based on this tidal value, medical staff can help set the ventilator's intake and exhaust volumes when the patient is subsequently connected to a ventilator via the connecting tubing. Furthermore, the tidal value helps medical staff determine whether the patient's breathing has reached normal levels, thus determining whether extubation is appropriate.

[0020] 2. In this invention, by setting an end tube and threading a connecting tube to its outer end, when the outer end of the connecting tube is not connected, the sealing gasket on the right side of the inner fixing plate of the end tube will abut against the right side of the inner wall of the end tube under the rebound of the spring, thereby sealing the airway of the end tube to prevent the entry of dust and debris. When the connecting tube is threaded to the outer end of the end tube, the connecting tube will abut against the sealing gasket and move to the left, thereby opening the airway of the end tube, allowing airflow to communicate through the through-tube on the fixing plate and the No. 1 air hole on the connecting tube, so that the end tube and the connecting tube are connected. At the same time, when the patient uses this device for breathing training, the filter tube can be inserted into the right end of the connecting tube, at which time the filter... The spherical locking block on the tube is pressed inward by the inner wall of the connecting tube, compressing the No. 1 spring until it encounters the spherical locking groove on the inner wall of the connecting tube. Under the rebound of the No. 1 spring, it locks into the spherical locking groove, thus completing the splicing of the filter tube and the connecting tube. At this time, when the patient is breathing, the filter screen on the filter tube can effectively prevent dust in the outside air from entering the lungs and aggravating the patient's lung infection. In addition, due to the sliding rod, pressing the button will drive the sliding rod to insert into the spherical locking groove, abutting the spherical locking block and compressing the No. 1 spring inward. At this time, the filter tube can be easily pulled out outward for cleaning, disinfection, or replacement to prevent the filter tube from becoming blocked and affecting the patient's breathing.

[0021] 3. In this invention, by setting a resistance device, turning the knob will drive the threaded rod to rotate through the bevel gear, thereby controlling the slider to move left and right inside the resistance device. Since the bottom of the slider is fixedly connected to the slide tube, the slide tube will move left and right inside the resistance device. In addition, since the diameter of the inner cavity of the resistance device is larger on the left side of the slide tube than on its right side, the number of air holes No. 2 on the slide tube connected to the left side of the inner cavity of the resistance device can be controlled by rotating the knob. This allows for the adjustment of the resistance when the gas flows through the slide tube inside the resistance device, ultimately adjusting the resistance when the patient breathes, and helping the patient to perform lung breathing training. Attached Figure Description

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a top view of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the end tube and the connecting tube before they are connected in this invention;

[0025] Figure 4 This is a cross-sectional view of the connecting pipe in this invention;

[0026] Figure 5 This is a cross-sectional view of the resistance device in this invention.

[0027] The markings in the diagram are: 1-connecting pipe, 2-pipe body, 3-tap connector, 4-connecting pipe, 5-training pipe, 6-valve No. 1, 7-valve No. 2, 8-branch pipe, 9-one-way valve, 10-resistance device, 11-moisture detector, 12-end pipe, 13-DSP controller, 14-gas flow sensor, 15-connecting pipe, 16-fixing plate, 17-through pipe, 18-sealing gasket, 19-connecting pipe, 20-air vent No. 1, 21-filter pipe, 22-spherical block, 23-slide bar, 24-button, 25-slide pipe, 26-air vent No. 2, 27-vent pipe, 28-slider, 29-threaded rod, 30-knob, 31-bevel gear. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] The following will combine Figures 1-5 A detailed description is provided of a respiratory training device for endotracheal intubation patients that can monitor tidal volume, according to an embodiment of the present invention.

[0030] Example:

[0031] Reference Figure 1 , 2 A respiratory training device for endotracheal intubation patients capable of monitoring tidal volume includes a connecting tube 1, a tube body 2 fixedly connected to the bottom of the connecting tube 1, a connector 3 fixedly connected to the bottom of the tube body 2, a connecting tube 4 and a training tube 5 fixedly connected to both sides of the connector 3, the top of the connecting tube 1 connected to the endotracheal tube, the left end of the connecting tube 4 connected to the ventilator tubing, a first valve 6 and a second valve 7 rotatably mounted above the connecting tube 4 and the training tube 5 respectively, and branch tubes 8 fixedly connected to the front and rear of the right end of the training tube 5, with a single valve installed near the training tube 5. The one-way valves 9 on the front branch pipe 8 and the rear branch pipe 8 allow the medium to flow in opposite directions. The outer wall of the branch pipe 8 is connected in sequence to the right of the one-way valve 9, with a resistance device 10, a moisture detector 11 and an end pipe 12. A DSP controller 13 is fixedly installed on the top of the moisture detector 11. A gas flow sensor 14 electrically connected to the DSP controller 13 is fixedly installed in the inner cavity of the moisture detector 11. A numerical display screen is provided on the front side of the moisture detector 11, and a numerical indicator needle is fixedly installed on the front side of the DSP controller 13.

[0032] By installing one-way valves 9 and tidal detectors 11 on both branch lines 8, when the patient needs to perform free breathing training, the connecting tube 1 can be connected to the patient's endotracheal tube first. Then, the first valve 6 at the top of the ventilator connection tube 4 is closed, and at the same time, the second valve 7 on the training tube 5 is opened. This allows the patient to breathe freely through the two branch lines 8 connected by the training tube 5. Because the one-way valves 9 on the front branch line 8 and the rear branch line 8 allow media flow in opposite directions, the patient's inhalation and exhalation are separated by the front and rear branch lines 8, respectively, thus avoiding... This prevents excessively long tubing connections from causing most of the exhaled waste gas to be reabsorbed into the lungs. Simultaneously, when gas passes through the branch tube 8, the gas flow sensor 14 inside the tidal detector 11 is sensed and the specific value is displayed on the screen in front of the tidal detector 11 after processing by the DSP controller 13. Based on this tidal value, medical staff can help set the intake and exhaust volumes of the ventilator when the patient is subsequently connected to the ventilator via the connecting tube 4. It can also help medical staff determine whether the patient's breathing has reached a normal level based on the tidal value, so as to determine whether the pulmonary intubation can be extubated.

[0033] Reference Figure 1 , 2 3, 4. A connecting pipe 15 is threaded to the right side of the end pipe 12. The right side of the outer wall of the end pipe 12 is threaded, and the inner left wall of the connecting pipe 15 is threaded. A fixing plate 16 is fixedly installed inside the end pipe 12. Through pipes 17 distributed circumferentially are installed through the outer periphery of the fixing plate 16. The right end of the fixing plate 16 is connected to a connecting pipe 19 via a No. 3 spring. The outer periphery of the connecting pipe 19 has No. 1 air holes 20 distributed circumferentially. A filter pipe 21 is inserted into the right side of the connecting pipe 15. A filter screen is provided at the outer end of the filter pipe 21. Spherical locking blocks are slidably installed at both the upper and lower ends of the insertion end of the filter pipe 21. 22. A first groove adapted to the spherical locking block 22 is opened in the filter tube 21. The inner end of the spherical locking block 22 is connected to the first groove through a first spring. A spherical slot adapted to the spherical locking block 22 is opened in the inner cavity of the connecting tube 15. The spherical locking block 22 is snapped into the spherical slot. A corresponding slide rod 23 is slidably installed in the connecting tube 15 at the snapping outer end of the spherical locking block 22. A second groove adapted to the slide rod 23 is opened in the connecting tube 15. A second spring is sleeved on the outer periphery of the slide rod 23. A push plate 24 inserted into the outer wall of the connecting tube 15 is fixedly installed at the outer end of the slide rod 23.

[0034] By setting up an end tube 12 and threading a connecting tube 15 to its outer end, when the outer end of the connecting tube 15 is not connected, the sealing gasket 18 on the right side of the inner fixing plate 16 of the end tube 12 will abut against the right side of the inner wall of the end tube 12 under the rebound of the spring, thereby sealing the airway of the end tube 12 to prevent the entry of dust and debris. When the connecting tube 15 is threaded to the outer end of the end tube 12, the connecting tube 19 will abut against the sealing gasket 18 and move to the left, thereby opening the airway of the end tube 12, allowing airflow to communicate through the through tube 17 on the fixing plate 16 and the first air hole 20 on the connecting tube 19, so that the end tube 12 is connected to the connecting tube 15. At the same time, when the patient uses this device for breathing training, the filter tube 21 can be inserted into the right end of the connecting tube 15. Next, the spherical locking block 22 on the filter tube 21 will be squeezed inward by the inner wall of the connecting tube 15, compressing the No. 1 spring until it encounters the spherical locking groove on the inner wall of the connecting tube 15. Under the rebound of the No. 1 spring, it will lock into the spherical locking groove, thus completing the splicing of the filter tube 21 and the connecting tube 15. At this time, when the patient is breathing, the filter screen on the filter tube 21 can effectively prevent dust in the outside air from entering the lungs and aggravating the patient's lung infection. In addition, due to the setting of the sliding rod 23, pressing the button 24 will drive the sliding rod 23 to insert into the spherical locking groove, abutting the spherical locking block 22 to compress the No. 1 spring inward. At this time, the filter tube 21 can be easily pulled out outward to clean, disinfect or replace the filter tube 21 to prevent the filter tube 21 from becoming blocked and affecting the patient's breathing.

[0035] Reference Figure 1 , 2 5. A slide tube 25 is slidably installed in the inner cavity of the resistance device 10. The slide tube 25 has densely distributed No. 2 air holes 26. A vent pipe 27 is fixedly connected to the right end of the slide tube 25. The inner cavity of the resistance device 10 is located on the left side of the slide tube 25 with a diameter larger than its right side diameter. The left end of the slide tube 25 is a closed structure. The vent pipe 27 is connected to the No. 2 air holes 26 through the inner cavity of the slide tube 25. A slider 28 is fixedly installed on the top of the slide tube 25 and slides inside the resistance device 10. A threaded rod 29 is threadedly connected to the slider 28. A No. 3 slide groove that matches the slider 28 is opened inside the resistance device 10. A knob 30 with a rotation scale on the outer wall is rotatably installed on the top surface of the resistance device 10. The bottom end of the rotating shaft of the knob 30 and the right end of the threaded rod 29 are both fixedly installed with meshing bevel gears 31.

[0036] By setting the resistance device 10, turning the knob 30 will drive the threaded rod 29 to rotate through the bevel gear 31, thereby controlling the slider 28 to move left and right within the resistance device 10. Since the bottom of the slider 28 is fixedly connected to the slide tube 25, the slide tube 25 will move left and right within the cavity of the resistance device 10. In addition, since the diameter of the inner cavity of the resistance device 10 is larger on the left side of the slide tube 25 than on its right side, the number of air holes 26 on the slide tube 25 connected to the left side of the inner cavity of the resistance device 10 can be controlled by rotating the knob 30. This allows for the adjustment of the resistance when the gas flows through the slide tube 25 within the resistance device 10, ultimately adjusting the resistance during the patient's breathing and helping the patient with lung training.

[0037] The implementation principle of the breathing training device for intubated patients that can monitor tidal volume according to this application is as follows:

[0038] First, by installing one-way valves 9 and tidal detectors 11 on both branch lines 8, when the patient needs to perform free breathing training, the connecting tube 1 can be connected to the patient's endotracheal tube. Then, the first valve 6 at the top of the ventilator connection tube 4 is closed, while the second valve 7 on the training tube 5 is opened simultaneously. This allows the patient to breathe freely through the two branch lines 8 connected by the training tube 5. Because the one-way valves 9 on the front and rear branch lines 8 allow for opposite flow directions, the patient's inhalation and exhalation are performed separately through the front and rear branch lines 8, respectively. To avoid the problem of excessively long tubing connections causing most of the exhaled waste gas to be re-inhaled into the lungs, and to ensure that when gas passes through the branch pipe 8, the gas flow sensor 14 inside the tidal detector 11 will be sensed and the specific value will be displayed on the screen in front of the tidal detector 11 after processing by the DSP controller 13. Based on this tidal value, medical staff can help set the intake and exhaust volumes of the ventilator when the patient is subsequently connected to the ventilator via the connecting pipe 4. At the same time, it can also help medical staff determine whether the patient's breathing has reached a normal level based on the tidal value, so as to determine whether the pulmonary intubation can be extubated.

[0039] Furthermore, by setting up the end tube 12 and threading the connecting tube 15 to the outer end of the end tube 12, when the outer end of the connecting tube 15 is not connected, the sealing gasket 18 on the right side of the inner fixing plate 16 of the end tube 12 will abut against the right side of the inner wall of the end tube 12 under the rebound of the spring, so as to seal the airway of the end tube 12 and prevent dust and debris from entering. When the connecting tube 15 is threaded to the outer end of the end tube 12, the connecting tube 19 will abut against the sealing gasket 18 and move to the left, thereby opening the airway of the end tube 12, so that the airflow can communicate through the through tube 17 on the fixing plate 16 and the first air hole 20 on the connecting tube 19, so that the end tube 12 and the connecting tube 15 are connected. At the same time, when the patient uses this device for breathing training, the filter tube 21 can be connected to the right end of the connecting tube 15. When the filter tube 21 is inserted, the spherical locking block 22 on the filter tube 21 will be squeezed inward by the inner wall of the connecting tube 15, compressing the No. 1 spring until it encounters the spherical locking groove on the inner wall of the connecting tube 15. Under the rebound of the No. 1 spring, it will lock into the spherical locking groove, thus completing the splicing of the filter tube 21 and the connecting tube 15. At this time, when the patient is breathing, the filter screen on the filter tube 21 can effectively prevent dust in the outside air from entering the lungs and aggravating the patient's lung infection. In addition, due to the setting of the sliding rod 23, pressing the button 24 will drive the sliding rod 23 to insert into the spherical locking groove, abutting the spherical locking block 22 to compress the No. 1 spring inward. At this time, the filter tube 21 can be easily pulled out outward to clean, disinfect or replace the filter tube 21 to prevent the filter tube 21 from becoming blocked and affecting the patient's breathing.

[0040] In addition, by setting the resistance device 10, turning the knob 30 will drive the threaded rod 29 to rotate through the bevel gear 31, thereby controlling the slider 28 to move left and right within the resistance device 10. Since the bottom of the slider 28 is fixedly connected to the slide tube 25, the slide tube 25 will move left and right within the cavity of the resistance device 10. In addition, since the diameter of the inner cavity of the resistance device 10 is larger on the left side of the slide tube 25 than on its right side, the number of second air holes 26 on the slide tube 25 connected to the left side of the inner cavity of the resistance device 10 can be controlled by rotating the knob 30. This allows for the adjustment of the resistance when the gas flows through the slide tube 25 within the resistance device 10, ultimately adjusting the resistance during the patient's breathing and helping the patient with lung training.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0042] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A respiratory training device for intubated patients capable of monitoring tidal volume, comprising a connecting tube (1), characterized in that: The bottom of the connecting pipe (1) is fixedly connected to the pipe body (2), the bottom of the pipe body (2) is fixedly connected to the tap (3), the two sides of the tap (3) are respectively fixedly connected to the receiving pipe (4) and the training pipe (5), the right end of the training pipe (5) is fixedly connected to the front and back of the branch pipe (8), the two branch pipes (8) are respectively provided with one-way valves (9) near the training pipe (5), the outer wall of the branch pipe (8) is located on the right side of the one-way valve (9) and the resistance device (10), the moisture detector (11) and the end pipe (12) are fixedly connected in sequence, the top of the moisture detector (11) is fixedly installed with a DSP controller (13), and the inner cavity of the moisture detector (11) is fixedly installed with a gas flow sensor (14) electrically connected to the DSP controller (13); The right side of the end tube (12) is threaded with a connecting tube (15), and a filter tube (21) is inserted into the right side of the connecting tube (15). A filter screen is provided at the outer end of the filter tube (21). A spherical locking block (22) is slidably installed at both the upper and lower ends of the insertion end of the filter tube (21). A spherical locking groove adapted to the spherical locking block (22) is opened in the inner cavity of the connecting tube (15), and the spherical locking block (22) is locked in the spherical locking groove. A sliding rod (23) is slidably installed at the outer end of the spherical locking block (22) inside the connecting tube (15). A pressing plate (24) inserted into the outer wall of the connecting tube (15) is fixedly installed at the outer end of the sliding rod (23). The inner cavity of the resistance device (10) is slidably fitted with a slide tube (25), and the slide tube (25) is provided with densely distributed second air holes (26). The right end of the slide tube (25) is fixedly connected to a vent pipe (27), and the top of the slide tube (25) is fixedly fitted with a slider (28) that slides inside the resistance device (10). The slider (28) is threadedly connected to a threaded rod (29).

2. A respiratory training device for intubated patients capable of monitoring tidal volume as described in claim 1, characterized in that: The top of the connecting tube (1) is connected to the endotracheal tube, and the left end of the connecting tube (4) is connected to the ventilator tubing.

3. A respiratory training device for intubated patients capable of monitoring tidal volume as described in claim 1, characterized in that: Valve No. 1 (6) and Valve No. 2 (7) are respectively rotatably installed above the receiving pipe (4) and training pipe (5).

4. A respiratory training device for intubated patients capable of monitoring tidal volume as described in claim 1, characterized in that: The one-way valve (9) on the front branch pipe (8) and the one-way valve (9) on the rear branch pipe (8) are configured to allow media to flow in opposite directions.

5. A respiratory training device for intubated patients capable of monitoring tidal volume as described in claim 1, characterized in that: A numerical display screen is provided on the front side of the moisture detector (11), and a numerical indicator needle is fixedly installed on the front side of the DSP controller (13).

6. A respiratory training device for intubated patients capable of monitoring tidal volume as described in claim 1, characterized in that: The outer wall of the end tube (12) is provided with a thread on the right side, and the inner wall of the left side of the connecting tube (15) is provided with a threaded groove. A fixing plate (16) is fixedly installed inside the end tube (12). A through tube (17) distributed in a circumferential direction is installed through the outer periphery of the fixing plate (16). The right end of the fixing plate (16) is connected to a connecting tube (19) by a No. 3 spring. A No. 1 air hole (20) distributed in a circumferential direction is opened on the outer periphery of the connecting tube (19).

7. A respiratory training device for intubated patients capable of monitoring tidal volume as described in claim 1, characterized in that: The filter tube (21) has a first sliding groove adapted to the spherical block (22), and the inner end of the spherical block (22) is connected to the first sliding groove by a first spring.

8. A respiratory training device for intubated patients capable of monitoring tidal volume as described in claim 1, characterized in that: The connecting tube (15) has a second sliding groove that matches the slide rod (23), and the slide rod (23) is fitted with a second spring on its outer periphery.

9. A respiratory training device for intubated patients capable of monitoring tidal volume as described in claim 1, characterized in that: The inner cavity of the resistance device (10) is located on the left side of the slide tube (25) with a diameter larger than that on the right side. The left end of the slide tube (25) is a closed structure. The vent pipe (27) is connected to the second air hole (26) through the inner cavity of the slide tube (25).

10. A respiratory training device for intubated patients capable of monitoring tidal volume as described in claim 1, characterized in that: The resistance device (10) has a No. 3 sliding groove adapted to the slider (28). The top surface of the resistance device (10) is rotatably mounted with a knob (30) with a rotation scale on the outer wall. The bottom end of the rotating shaft of the knob (30) and the right end of the threaded rod (29) are both fixedly mounted with meshing bevel gears (31).

Images