Respiratory training auxiliary device for critical medicine patient

Abstract

The invention relates to the technical field of medical instruments, in particular to a respiratory training auxiliary device for critical medicine patients. A three-way valve; a connecting pipe; the guide cylinder is fixedly mounted at one end of the connecting pipe; the sliding cylinder is mounted in the guide cylinder in a sliding manner; the piston block is mounted in the sliding cylinder in a sliding manner; the fixed plate is fixedly mounted at one end of the guide cylinder; the resistance spring is fixedly mounted between the fixed plate and the piston block; the push plate is fixedly mounted at one end of the sliding cylinder; a gas guide assembly; a degradation component; and a suction nozzle assembly. Compared with the prior art, by arranging the guide cylinder, the sliding cylinder and the push plate, it can be ensured that a patient can be effectively exercised in the inspiration and expiration processes, through the special design of air holes and the linkage mechanism of a piston block and the sliding cylinder, the training resistance can be automatically subjected to secondary adjustment, and the training efficiency is improved. The training difficulty can be automatically changed according to the breathing intensity of the patient, so that the lung function of the patient is gradually improved.

Description

Technical Field

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

[0002] A breathing training assistance device for critically ill patients is a medical device designed specifically for critically ill patients. Through innovative mechanical assistance means, it helps patients carry out breathing training, improve breathing ability and metabolism, and thus accelerate the rehabilitation process. This device usually combines multiple functions. It can not only achieve conventional breathing assistance functions, but also enable patients to independently control the training process according to their own conditions.

[0003] After retrieval, a Chinese patent with the publication number CN119548724A discloses a breathing training assistance device for critically ill patients, which relates to the technical field of medical assistance. It includes a device housing and a support plate. An air pump is fixedly installed on the upper surface of the device housing, and an operation console is fixedly installed on the inner side surface of the device housing. An auxiliary mechanism is arranged between the air pump and the operation console; the support plate fixedly installs the device housing on its upper surface. A groove is opened on the left side of the device housing, and a fixed bracket is fixedly installed on the inner side surface of the device housing. A breathing mechanism is arranged between the device housing and the fixed bracket. For this breathing training assistance device for critically ill patients, oxygen is transmitted to two closed boxes through a connecting pipe, and spring one and spring two repeatedly press the airbag to perform telescopic movement, which is convenient for adjusting the breathing of patients. The limit disc limits the airbag to prevent the airbag from jumping too fast. The support plate fixedly supports the device housing, and a pulley group is used to push the device housing to move, saving the effort of nursing staff. However, when this solution is actually used, there are still the following deficiencies:

[0004] The above-mentioned device is bulky, not conducive to patients using it at home, nor convenient to carry, which limits the possibility of patients performing breathing training at any time. Patients need to stay indoors for a long time to perform breathing training, and not being able to go out will affect the mood of patients during treatment and is not conducive to the physical recovery of patients. When the above-mentioned device is used, it requires manual adjustment of the resistance of breathing training and cannot be adjusted in time according to the needs of patients. It is very inconvenient for some patients with weak bodies to adjust by themselves. Being in too high training conditions for a long time is likely to cause patients to have difficulty breathing and hypoxia, and being in too low training conditions for a long time is difficult to achieve the effect of rehabilitation training, both of which are not conducive to the treatment of patients.

[0005] Therefore, the present application provides a breathing training assistance device for critically ill patients to meet the needs of automatically adjusting training resistance and being easy to carry around. Summary of the Invention

[0006] In view of this, the purpose of the present invention is to provide a breathing training assistance device for critically ill patients to solve the problems of inconvenient and untimely manual adjustment operation and the difficulty of carrying the device.

[0007] For the above purposes, the present invention provides a breathing training assistance device for critically ill patients, comprising:

[0008] A box body;

[0009] A three-way valve, fixedly installed at the bottom inside the box body;

[0010] Two connecting pipes, fixedly connected to the three-way valve;

[0011] Two guide cylinders, respectively fixedly installed at the other ends of the two connecting pipes, and the two guide cylinders are arranged in opposite directions;

[0012] Two sliding cylinders, respectively slidably installed inside the guide cylinders, and damping sheets are fixedly installed between the sliding cylinders and the guide cylinders;

[0013] Two piston blocks, respectively slidably installed inside the sliding cylinders;

[0014] Two fixing plates, respectively fixedly installed at one ends of the two guide cylinders close to the piston blocks;

[0015] Two resistance springs, respectively fixedly installed between the two fixing plates and the two piston blocks;

[0016] Two push plates, respectively fixedly installed at the ends of the two sliding cylinders away from the piston blocks;

[0017] An air guiding assembly, arranged on the sliding cylinder;

[0018] A degradation assembly, arranged on the sliding cylinder;

[0019] A mouthpiece assembly, arranged on the box body;

[0020] Wherein, one-way valves with different directions are arranged at the two ends of the three-way valve connected to the connecting pipes.

[0021] Preferably, the air guiding assembly includes:

[0022] Yielding grooves, opened on both sides of the guide cylinder;

[0023] A first conduit, fixedly installed on the sliding cylinder and passing through the yielding groove, and fixedly connected to one end of the connecting pipe;

[0024] A second conduit, fixedly installed at the end of the sliding cylinder opposite to the first conduit, passing through the yielding groove, and passing through the box body to communicate with the outside;

[0025] Air holes, opened on the piston block and adapted to the first conduit and the second conduit;

[0026] One end of one of the connecting pipes communicates with the bottom end of one of the guiding cylinders, and one end of the other connecting pipe communicates with the fixing plate.

[0027] Preferably, the air holes are arranged in a long water droplet shape, and the opening of the air holes is larger at the end close to the sliding cylinder.

[0028] Preferably, the nozzle assembly includes:

[0029] An air nozzle, arranged at one end of the three-way valve;

[0030] An arc-shaped cover, fixedly installed at the end of the air nozzle extending out of the box body.

[0031] Preferably, the air nozzle is threadedly connected to the bottom of the box body, and an air nozzle card slot adapted to the air nozzle is fixedly installed in the box body.

[0032] Preferably, the degradation component includes:

[0033] A Chinese character-shaped guiding component, arranged on the inner side wall of the guiding cylinder close to one end of the piston block;

[0034] A guiding block, fixedly installed on the piston block and adapted to the Chinese character-shaped guiding component.

[0035] Preferably, the Chinese character-shaped guiding component includes:

[0036] A vertical groove, opened at the top of the inner side wall of the guiding cylinder close to one end of the piston block;

[0037] A C-shaped groove, opened on the inner side wall of the guiding cylinder and the top of which is connected to the bottom of the vertical groove;

[0038] An extension groove, opened on the inner side wall of the guiding cylinder and arranged vertically, and connected to the other end of the C-shaped groove;

[0039] A reset groove, opened on the inner side wall of the guiding cylinder and symmetrically arranged with the C-shaped groove, and the two ends are respectively connected to the vertical groove and the extension groove;

[0040] A corner one, fixedly installed on the inner side wall of the guiding cylinder and the tip of which is located on one side of the bottom of the vertical groove close to the reset groove;

[0041] A corner two, fixedly installed on the inner side wall of the guiding cylinder and the tip of which is located on one side of the top of the extension groove close to the C-shaped groove, and the corner two and the conduit one and the conduit two are in the same plane;

[0042] A degradation groove, opened on the inner side wall of the guiding cylinder and located between the C-shaped groove and the reset groove, and the bottom of which is connected to the C-shaped groove;

[0043] The third corner is fixedly installed on the inner side wall of the guiding cylinder, and its tip is located on the side close to the C-shaped groove between the C-shaped groove and the degradation groove.

[0044] Preferably, a diffusion box is fixedly installed at one end of the second conduit passing through the guiding cylinder with an upward opening and close to the box body. A liquid storage sponge is installed in the diffusion box, and a plurality of uniformly distributed filter holes are formed at one end of the diffusion box extending out of the box body.

[0045] Preferably, a sterilization box is fixedly installed at one end of the other second conduit close to the box body.

[0046] Preferably, a flexible anti-collision material adapted to the guiding cylinder is arranged in the box body.

[0047] Advantages of the present invention:

[0048] 1. For this kind of breathing training assistance device for critically ill patients, by setting the guiding cylinder, the sliding cylinder and the push plate, it can ensure that patients can get effective exercise during both the inhalation and exhalation processes. The special design of the air holes and the linkage mechanism between the piston block and the sliding cylinder can perform secondary adjustment on the training resistance, and can automatically increase the training difficulty according to the breathing intensity of the patient, thereby gradually improving the lung function of the patient.

[0049] 2. For this kind of breathing training assistance device for critically ill patients, by setting the middle Chinese character-shaped guiding component and the guiding block, through the cooperation of the guiding block and different slots, the automatic adjustment of the training difficulty is realized. When the breathing intensity of the patient is greater than or equal to the current resistance, the guiding block will move along a specific path to maintain or increase the training difficulty; when the breathing intensity of the patient weakens, the guiding block will return along another path, driving the sliding cylinder to move, thereby reducing the training difficulty. This automatic adjustment mechanism does not require manual intervention, is more convenient to use, and is automatically adjusted according to the breathing intensity, and the adjustment amplitude is more accurate and scientific.

[0050] 3. For this kind of breathing training assistance device for critically ill patients, by setting a detachable mouthpiece that can be placed in the mouthpiece card slot in the box body, the volume of the device is reduced. The design of the arc-shaped cover improves the sealing performance and comfort of the patient during use. The liquid storage sponge stored in the diffusion box can store moisture or other liquid drugs, so as to increase the air humidity or disperse and inhale drugs during the breathing training process, playing an auxiliary training and treatment effect. It is not only suitable for general lung function exercise, but also can be used for the treatment and rehabilitation of specific diseases. The exhaled gas can be effectively sterilized by the sterilization box, avoiding the diffusion and spread of viruses in the exhaled gas of patients. Especially in the situation such as the epidemic, this function is particularly important. Description of the Drawings

[0051] To more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the attached drawings required for the description of the embodiments or the prior art. Obviously, the attached drawings in the following description are only those of the present invention. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these attached drawings.

[0052] Figure 1 Schematic diagram of the three-dimensional structure of the present invention;

[0053] Figure 2 Schematic diagram of the partially sectioned structure of the present invention;

[0054] Figure 3 Schematic diagram of the internal top view structure of the box body of the present invention;

[0055] Figure 4 Schematic diagram of the internal structure of the present invention;

[0056] Figure 5 Schematic diagram of the exploded structure of the guide cylinder of the present invention;

[0057] Figure 6 Schematic diagram of the sectional structure of the guide cylinder of the present invention;

[0058] Figure 7 Schematic diagram of the internal sectional structure of the present invention;

[0059] Figure 8 Schematic diagram of the planar unfolded structure of the sliding cylinder of the present invention.

[0060] The markings in the figure are:

[0061] 1. Box body; 2. Three-way valve; 3. Connecting pipe; 31. Guide cylinder; 32. Sliding cylinder; 33. Piston block; 34. Fixed plate; 35. Resistance spring; 36. First conduit; 37. Second conduit; 38. Relief groove; 39. Air hole; 310. Push plate; 4. Air nozzle; 41. Arc-shaped cover; 42. Air nozzle clamping groove; 5. Middle-shaped guiding component; 51. Guide block; 52. C-shaped groove; 53. Extension groove; 54. Reset groove; 55. Vertical groove; 56. Degradation groove; 57. First corner; 58. Second corner; 59. Third corner; 6. Diffusion box; 61. Filter hole; 7. Sterilization box. Detailed implementation manners

[0062] To make the purpose, technical solutions and advantages of the present invention clearer and more understandable, the following further details the present invention in combination with specific embodiments.

[0063] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0064] like Figures 1 to 8 As shown, a respiratory training auxiliary device for critical care patients comprises a box body 1; a three-way valve 2, fixedly mounted on the bottom of the box body 1; two connecting pipes 3, fixedly connected to the three-way valve 2; two guide cylinders 31, respectively fixedly mounted on the other ends of the two connecting pipes 3, and the two guide cylinders 31 are arranged in opposite directions; two sliding cylinders 32, respectively slidably mounted in the guide cylinders 31, and damping plates are fixedly mounted on the guide cylinders 31; two piston blocks 33, respectively slidably mounted in the sliding cylinders 32; two fixed plates 34, respectively fixedly mounted on one end of the two guide cylinders 31 close to the piston blocks 33; two resistance springs 35, respectively fixedly mounted between the two fixed plates 34 and the two piston blocks 33; two push plates 310, respectively fixedly mounted on one end of the two sliding cylinders 32 away from the piston blocks 33; an air guide component, arranged on the sliding cylinder 32; a degradation component, arranged The suction nozzle assembly is arranged on the box body 1; wherein, the two ends of the three-way valve 2 connected to the connecting pipe 3 are provided with one-way valves in different directions; the air guide assembly includes: a clearance groove 38, which is arranged on both sides of the guide cylinder 31; a conduit 1 36, which is fixedly installed on the sliding cylinder 32 and is arranged through the clearance groove 38, and is fixedly connected with one end of the connecting pipe 3; a conduit 2 37, which is fixedly installed on the end of the sliding cylinder 32 opposite to the conduit 1 36, and is arranged through the clearance groove 38, and is connected to the outside through the box body 1; an air hole 39, which is arranged on the piston block 33 and is adapted to the conduit 1 36 and the conduit 2 37; wherein, one end of a connecting pipe 3 is connected to the bottom end of a guide cylinder 31, and one end of the other connecting pipe 3 is connected to the fixed plate 34; the air hole 39 is arranged in the shape of a long water drop, and the opening of the air hole 39 at the end close to the sliding cylinder 32 is larger;

[0065] During use, when the patient inhales through the nozzle assembly, due to the connection of the connecting tube 3 and the three-way valve 2, a negative pressure is formed in the guide cylinder 31. Since the fixing plate 34 is in a fixed state, under the action of atmospheric pressure, the piston block 33 moves downward. Due to the resistance of the damping piece, when the piston block 33 moves, the sliding cylinder 32 will not move accordingly. Before the piston block 33 moves downward until the air hole 39 corresponds to the first conduit 36 and the second conduit 37, although the first conduit 36 is connected to the nozzle assembly, it is blocked by the bottom of the piston block 33 and no air path can be formed. Therefore, the suction force will be entirely used to maintain the negative pressure and prompt the piston block 33 to move into place. When the piston block 33 moves into place, the air hole 39 aligns with the first conduit 36 and the second conduit 37, and gas can enter from outside the box body 1 through the second conduit 37 and be inhaled into the patient's lungs through the first conduit 36, thus achieving the effect of exercising the patient's lung function. When the patient exhales, under the action of the one-way valve in the opposite direction, the gas flows through the three-way valve 2 to another guide cylinder 31. The installation of this guide cylinder 31 and other components is opposite to that during inhalation. Therefore, a positive pressure is formed when the gas is exhaled, pushing the piston block 33 upward. When the air hole 39 aligns with the first conduit 36 and the second conduit 37, the gas is discharged from the box body 1 through the first conduit 36 and the second conduit 37. Thus, both processes during the patient's breathing can be exercised, which is beneficial to improving the exercise effect. The air hole 39 is set in an elongated teardrop shape, so that when the patient's suction or exhalation force is sufficient, the piston block 33 can continue to move. At this time, the air path can be ensured to be connected, and the connecting diameter gradually decreases, which can increase the difficulty of inhaling or exhaling air, thereby increasing the resistance of the system to breathing and enhancing the exercise effect, avoiding the inability to produce the exercise effect due to insufficient resistance. When the piston block 33 moves to the position where the smallest part of the air hole 39 aligns with the first conduit 36 and the second conduit 37 on the sliding cylinder 32, the current training resistance can no longer meet the needs of the patient's training. At this time, the bottom of the piston block 33 contacts the push plate 310. When the piston block 33 continues to move downward at this time, it will push the sliding cylinder 32 to move, adjusting the position of the sliding cylinder 32, so that the stroke that the piston block 33 needs to move during the next breath becomes larger, which also means an increase in resistance, thereby automatically increasing the training difficulty and enhancing the exercise effect without manual adjustment, and adjusting according to the patient's exhalation situation automatically, with a more precise and scientific adjustment range.

[0066] As Figure 2 , Figure 3 , Figure 4 shown, the nozzle assembly includes: a mouthpiece 4 provided at one end of the three-way valve 2; an arc-shaped cover 41 fixedly installed at one end of the mouthpiece 4 extending out of the box body 1; the mouthpiece 4 is threadedly connected to the bottom of the box body 1, and a mouthpiece card slot 42 adapted to the mouthpiece 4 is fixedly installed in the box body 1;

[0067] When it needs to be carried, the air nozzle 4 can be detached from the box body 1, the box body 1 is opened and the air nozzle 4 is placed in the air nozzle slot 42 in the box body 1. After the box body 1 is closed, the whole device structure is more compact, with a smaller volume and is more convenient to carry. The arc-shaped cover 41 can fit with the patient's mouth, playing a sealing role to avoid reducing the exercise effect due to air leakage from the side.

[0068] As Figures 5 to 8 shown, the downgrading component includes: a Chinese character-shaped guiding component 5, arranged on the inner side wall of the guiding cylinder 31 near one end of the piston block 33; a guiding block 51, fixedly installed on the piston block 33 and adapted to the Chinese character-shaped guiding component 5; the Chinese character-shaped guiding component 5 includes: a vertical groove 55, opened at the top of the inner side wall of the guiding cylinder 31 near one end of the piston block 33; a C-shaped groove 52, opened on the inner side wall of the guiding cylinder 31 and the top of which is connected to the bottom of the vertical groove 55; an extension groove 53, opened on the inner side wall of the guiding cylinder 31 and arranged vertically, and connected to the other end of the C-shaped groove 52; a reset groove 54, opened on the inner side wall of the guiding cylinder 31 and symmetrically arranged with the C-shaped groove 52, with both ends respectively connected to the vertical groove 55 and the extension groove 53; a corner one 57, fixedly installed on the inner side wall of the guiding cylinder 31 and the tip of which is located on one side of the bottom of the vertical groove 55 close to the reset groove 54; a corner two 58, fixedly installed on the inner side wall of the guiding cylinder 31 and the tip of which is located on one side of the top of the extension groove 53 close to the C-shaped groove 52, and the corner two 58 is in the same plane as the conduit one 36 and the conduit two 37; a downgrading groove 56, opened on the inner side wall of the guiding cylinder 31 and located between the C-shaped groove 52 and the reset groove 54, and the bottom of which is communicated with the C-shaped groove 52; a corner three 59, fixedly installed on the inner side wall of the guiding cylinder 31 and the tip of which is located on one side of the C-shaped groove 52 close to the downgrading groove 56 between the C-shaped groove 52 and the downgrading groove 56;

[0069] When the patient's breathing intensity is greater than or equal to the current resistance, the piston block 33 can smoothly reach the position where the air hole 39 is aligned with the first conduit 36 and the second conduit 37. The guiding block 51 will first move downward along the vertical groove 55 to the first corner 57. Under the action of the first corner 57, the guiding block 51 is guided by the first corner 57 to the C-shaped groove 52. Under the action of the C-shaped groove 52, the piston block 33 undergoes a slight torsion. Since the breathing is strong at this time, the piston block 33 drives the guiding block 51 to move along the C-shaped groove 52 to the position of the second corner 58. At this time, the air hole 39 just coincides with the first conduit 36 and the second conduit 37, and the piston block 33 can continue to move. The guiding block 51 will continue to move downward along the extension groove 53. When it moves to the bottom end, that is, when the piston block 33 contacts the push plate 310, the device can automatically increase the resistance. When the piston block 33 resets, under the action of the second corner 58, the guiding block 51 returns to the vertical groove 55 through the reset groove 54. When the patient feels tired during training, or when other breathing intensities are weaker than the current resistance condition, it is difficult for the piston block 33 to smoothly reach the position where the air hole 39 is aligned with the first conduit 36 and the second conduit 37. At this time, the piston block 33 drives the guiding block 51 to first move downward along the vertical groove 55 to the C-shaped groove 52. Under the action of the C-shaped groove 52, the piston block 33 undergoes a slight torsion. At this time, the guiding block 51 cannot reach the second corner 58, that is, it cannot reach the reset groove 54. Therefore, when the piston block 33 resets, the guiding block 51 will return along the C-shaped groove 52 and be at the position of the third corner 59. Under the action of the third corner 59, it enters the degradation groove 56. During the reset process of the piston block 33, the guiding block 51 is engaged in the degradation groove 56 and drives the sliding cylinder 32 to move to the initial position, that is, the minimum resistance position. At this time, it can automatically adjust to a suitable resistance according to the patient's current situation with the patient's breathing, so as to ensure that the device always maintains a suitable resistance to the patient. It can automatically reduce the resistance to avoid the patient's breathing discomfort and hypoxia caused by being in too high a training condition for a long time, and at the same time can automatically increase the resistance to avoid being in too low a training condition for a long time, thereby ensuring the training effect.

[0070] As Figure 1 , Figure 2 and Figure 4 shown, at one end of the second conduit 37 passing through the guiding cylinder 31 with an upward opening and close to the box body 1, a diffusion box 6 is fixedly installed. A liquid storage sponge is installed in the diffusion box 6; a plurality of uniformly distributed filter holes 61 are formed in one end of the diffusion box 6 extending out of the box body 1; at one end of the other second conduit 37 close to the box body 1, a sterilization box 7 is fixedly installed; a flexible anti-collision material adapted to the guiding cylinder 31 is arranged in the box body 1;

[0071] When inhaling air, pollutants such as dust can be filtered through the function of the filter holes 61. The liquid storage sponge stored in the diffusion box 6 contains moisture or other liquid medicines, which can increase the air humidity or disperse a certain amount of inhaled medicine during the breathing training process, playing an auxiliary training and treatment effect. The exhaled gas can avoid the diffusion and transmission of viruses in the patient's exhaled gas through the sterilization function of the sterilization box 7, improving safety. The whole device is centrally arranged in the box body 1 and each component is protected by a flexible anti-collision material, thereby increasing the service life of the device and avoiding the shortening of the device life caused by collision.

[0072] According to the technical solution provided by the present invention, when the patient inhales through the nozzle assembly, due to the connection of the connecting pipe 3 and the three-way valve 2, a negative pressure is formed in the guide cylinder 31. Since the fixed plate 34 is in a fixed state, under the action of the atmospheric pressure, the piston block 33 moves downward. Due to the resistance of the damping piece, when the piston block 33 moves, the sliding cylinder 32 will not move accordingly. Before the piston block 33 moves downward until the air hole 39 corresponds to the conduit 36 and the conduit 37, although the conduit 36 is connected to the nozzle assembly, it is blocked by the bottom of the piston block 33 and cannot form an air path. Therefore, the suction force will be all used to maintain the negative pressure and promote the piston block 33 to move in place. When the piston block 33 moves in place, the air hole 39 is aligned with the conduit 36 and the conduit 37, and the gas can enter from outside the box body 1 through the conduit 37 and be inhaled into the patient's lungs through the conduit 36, thereby achieving the exercise effect on the patient's lung function. When the patient exhales, under the action of the one-way valve in the opposite direction, the gas flows through the three-way valve 2 to another guide cylinder 31. The installation of this guide cylinder 31 and other components is opposite to that during inhalation. Therefore, a positive pressure is formed when the gas exhales, pushing the piston block 33 upward. When the air hole 39 is aligned with the conduit 36 and the conduit 37, the gas is discharged from the box body 1 through the conduit 36 and the conduit 37. Thus, both processes during the patient's breathing can be exercised, which is beneficial to improving the exercise effect. The air hole 39 is set in a long water droplet shape, so that when the patient's suction or exhalation force is sufficient, the piston block 33 can continue to move. At this time, the air path can be ensured to be connected, and the connection diameter gradually decreases, which can increase the difficulty of inhaling or exhaling air, thereby increasing the resistance of the system to breathing and enhancing the exercise effect, avoiding the inability to produce an exercise effect due to insufficient resistance. When the piston block 33 moves to the minimum of the air hole 39 and is aligned with the conduit 36 and the conduit 37 on the sliding cylinder 32, the current training resistance can no longer meet the training needs of the patient. At this time, the bottom of the piston block 33 contacts the push plate 310. When the piston block 33 continues to move downward, it will push the sliding cylinder 32 to move, adjusting the position of the sliding cylinder 32, so that the stroke that the piston block 33 needs to move during the next breath becomes larger, which also means an increase in resistance, thereby automatically increasing the training difficulty and enhancing the exercise effect without manual adjustment, and adjusting according to the patient's exhalation situation automatically, with a more precise and scientific adjustment range.

[0073] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention is limited to these examples; within the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0074] Therefore, any omissions, modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A breathing training assist device for critical care patients, characterized in that: include: Box body (1); A three-way valve (2) is fixedly mounted on the bottom of the box body (1); Two connecting pipes (3) fixedly connected to the three-way valve (2); Two guide cylinders (31) are respectively fixedly mounted on the other ends of the two connecting pipes (3), and the two guide cylinders (31) are arranged in opposite directions; Two sliding cylinders (32) are respectively slidably mounted in the guide cylinder (31), and a damping sheet is fixedly mounted on the guide cylinder (31); Two piston blocks (33) are respectively slidably mounted in the sliding cylinder (32); Two fixing plates (34) are respectively fixedly mounted on one end of the two guide cylinders (31) close to the piston block (33); Two resistance springs (35) are respectively fixedly installed between the two fixing plates (34) and the two piston blocks (33); Two push plates (310) are respectively fixedly mounted on one end of the two sliding cylinders (32) away from the piston block (33); An air guide assembly is arranged on the sliding cylinder (32); A degradation component, arranged on the sliding cylinder (32); A nozzle assembly, arranged on the box body (1); Wherein, one-way valves in different directions are arranged at both ends of the connection between the three-way valve (2) and the connecting pipe (3).

2. The breathing training auxiliary device for critical care patients according to claim 1, characterized in that: The air guide component comprises: The clearance grooves (38) are provided on both sides of the guide cylinder (31); A conduit 1 (36) is fixedly mounted on the sliding cylinder (32) and passes through the clearance groove (38) and is fixedly connected to one end of the connecting pipe (3); The second conduit (37) is fixedly mounted on the end of the sliding cylinder (32) opposite to the first conduit (36), and is disposed through the clearance groove (38), and passes through the box body (1) to communicate with the outside; An air hole (39) is provided on the piston block (33) and is adapted to the first conduit (36) and the second conduit (37); One end of one of the connecting tubes (3) is connected to the bottom end of one of the guide cylinders (31), and one end of another of the connecting tubes (3) is connected to the fixing plate (34).

3. The breathing training auxiliary device for critical care patients according to claim 2, characterized in that: The air hole (39) is arranged in a long water drop shape, and the opening of the air hole (39) at one end close to the sliding cylinder (32) is larger.

4. The breathing training auxiliary device for critical care patients according to claim 3, characterized in that: The nozzle assembly comprises: A gas nozzle (4) is arranged at one end of the three-way valve (2); The arc-shaped cover (41) is fixedly mounted on one end of the air nozzle (4) extending out of the box body (1).

5. The breathing training auxiliary device for critical care patients according to claim 4, characterized in that: The air nozzle (4) is threadedly connected to the bottom of the box body (1), and an air nozzle clamping groove (42) adapted to the air nozzle (4) is fixedly installed in the box body (1).

6. The breathing training auxiliary device for critical care patients according to claim 3, characterized in that: The downgrade components include: A Chinese-character-shaped guide assembly (5) is arranged on the inner side wall of the guide cylinder (31) close to one end of the piston block (33); A guide block (51) is fixedly mounted on the piston block (33) and is adapted to the middle-shaped guide assembly (5).

7. The breathing training auxiliary device for critical care patients according to claim 6, characterized in that: The middle-shaped guide assembly (5) comprises: A vertical groove (55) is formed at the top of the inner wall of the guide cylinder (31) near one end of the piston block (33); A C-shaped groove (52) is provided on the inner side wall of the guide cylinder (31) and the top end is connected to the bottom of the vertical groove (55); An extension groove (53) is provided on the inner side wall of the guide cylinder (31) and is vertically arranged and connected to the other end of the C-shaped groove (52); A reset groove (54) is provided on the inner wall of the guide cylinder (31) and is symmetrically arranged with respect to the C-shaped groove (52), and its two ends are respectively connected with the vertical groove (55) and the extension groove (53); Corner 1 (57) is fixedly mounted on the inner wall of the guide cylinder (31) and its tip is located at a side of the bottom of the vertical groove (55) close to the reset groove (54); Corner 2 (58) is fixedly mounted on the inner wall of the guide cylinder (31) and its tip is located on the top of the extension groove (53) near the C-shaped groove (52), and the corner 2 (58) is located in the same plane as the conduit 1 (36) and the conduit 2 (37); A degradation groove (56) is provided on the inner side wall of the guide cylinder (31) and is located between the C-shaped groove (52) and the reset groove (54), and its bottom is connected to the C-shaped groove (52); Corner three (59) is fixedly mounted on the inner wall of the guide cylinder (31) and its tip is located between the C-shaped groove (52) and the degradation groove (56) and close to the side of the C-shaped groove (52).

8. The breathing training auxiliary device for critical care patients according to claim 2, characterized in that: A diffusion box (6) is fixedly installed on one end of the second conduit (37) passing through the guide cylinder (31) with an opening facing upward, close to the box body (1). A liquid storage sponge is installed in the diffusion box (6). A plurality of evenly distributed filter holes (61) are provided on one end of the diffusion box (6) extending out of the box body (1).

9. The breathing training auxiliary device for critical care patients according to claim 8, characterized in that: A sterilization box (7) is fixedly mounted on one end of the other conduit 2 (37) close to the box body (1).

10. The breathing training auxiliary device for critical care patients according to claim 9, characterized in that: A flexible anti-collision material adapted to the guide cylinder (31) is arranged inside the box body (1).

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