Respiratory muscle strength training rehabilitation instrument

Abstract

The invention discloses a respiratory muscle strength training rehabilitation instrument, and relates to the technical field of medical instruments, the respiratory muscle strength training rehabilitation instrument comprises a respiratory rehabilitation instrument main body and a connecting pipe used for transmitting air blown out or exhaled by a patient, and further comprises a mouthpiece which is arranged at a pipe opening, away from the respiratory rehabilitation instrument main body, of the connecting pipe and is cylindrical, and the diameter of the mouthpiece is the same as that of the connecting pipe; the mouthpiece is attached and fixed to the pipe opening in the circumferential direction of the connecting pipe, one end of the mouthpiece protrudes outwards to form two arc faces, and two included angles are formed between the two arc faces. The connecting pipe is used for conveying gas blown out by a patient to the breathing rehabilitation instrument body, the mouthpiece is of a special cylinder, one end of the mouthpiece is smoothly connected with the connecting pipe, the other end of the mouthpiece is obliquely expanded outwards, protrudes up and down, swells in the middle and fits the oral cavity structure, the patient can hold the mouthpiece conveniently, the blocking piece is bent and then fits the edge of the mouthpiece, the contact area is small, and the mouthpiece can swing with the edge as a swing point. When a patient contains the mouth piece, the blocking piece covers the mouth corner, the inclination angle can be adjusted according to needs, and gas is tightly prevented from leaking from the mouth corner.

Description

Technical Field

[0001] The invention relates to the technical field of medical devices, in particular to a respiratory muscle strength training rehabilitation device. Background Art

[0002] Patients with heart failure often have respiratory dysfunction. The weakened heart pumping function leads to lung congestion, which affects gas exchange and makes patients have difficulty breathing. Respiratory muscle strength training rehabilitation equipment can improve respiratory function and alleviate the symptoms of difficulty breathing by exercising the respiratory muscles, improving the strength and efficiency of the respiratory muscles. It also helps to reduce the burden on the heart and promote the recovery of the cardiovascular system.

[0003] When the patient holds the mouthpiece of the respiratory rehabilitation device and blows, the patient will blow hard unconsciously, and then the patient's upper and lower lips will tighten unconsciously, and the gas will pass through the pipe quickly. According to Bernoulli's principle, the pressure in the area with a high gas flow rate in the pipe becomes smaller, while the gas in the patient's mouth has a relatively slow flow rate and a higher pressure. Therefore, under the action of the pressure difference, part of the gas in the pipe will flow back to the mouth;

[0004] Because the muscles at the corners of the mouth are weaker than other parts of the lips, under the pressure of tightening the lips when blowing, it is difficult for the muscles at the corners of the mouth to provide enough support to maintain a closed state like the central part of the lips, so it is easier for gas to find a "breakthrough" here and overflow;

[0005] In order to solve this problem, a flat mouthpiece is often used in the existing technology. Considering that the human oral cavity is flat, the flat mouthpiece can better fit the contours of the lips and teeth, reduce the gap between the two, and thus improve the sealing when blowing;

[0006] However, this design overlooks an important issue, that is, when the patient blows, the lips will naturally form an "O" shape. This is because there are complex muscle groups distributed around the human mouth, including the orbicularis oris and buccinator muscles. When blowing, these muscles will contract in coordination, and forming an "O" shape is the most natural and effective way for these muscles to contract, which can form a relatively small and concentrated air outlet in the mouth, which is conducive to concentrating the airflow and generating sufficient blowing pressure;

[0007] Therefore, if the lips are unnaturally flat when blowing, the lip muscles will be in an uncomfortable tense state. Long-term use will cause soreness and discomfort in the lips, reducing the patient's comfort during training. In addition, blowing with the lips flat will change the natural direction and shape of the airflow, causing turbulence in the mouthpiece, and may cause unstable phenomena such as eddy currents and backflows. This will not only increase the risk of reverse outflow of gas, but also affect the accuracy of the rehabilitation instrument's measurement and analysis of airflow;

[0008] When a part of the soft flat mouthpiece is held in the patient's mouth and tightened into an "O" shape, the mouthpiece can indeed follow the changes. However, while the two sides of the mouthpiece are tightened, the upper and lower parts of the mouthpiece will also expand outward accordingly, eventually pushing the patient's upper lip and lower lip outward, causing the patient to have an obvious sense of pressure on the lips. Given that respiratory muscle strength training often requires patients to perform multiple and long-term repetitive operations, being in such a compressive state for a long time can easily cause excessive fatigue and muscle soreness of the orbicularis oris and other lip muscles, thereby affecting the subsequent respiratory muscle strength training process. Summary of the invention

[0009] The purpose of the present invention is to provide a respiratory muscle strength training rehabilitation device to solve the problems raised in the above background technology.

[0010] In order to solve the above technical problems, the present invention provides a respiratory muscle strength training rehabilitation instrument, comprising a respiratory rehabilitation instrument body and a connecting tube for transmitting the patient's blown or exhaled gas, and also comprising a mouthpiece, which is arranged at the pipe opening of the connecting tube away from the respiratory rehabilitation instrument body, the mouthpiece is cylindrical and has the same diameter as the connecting tube, the mouthpiece is fixed to the pipe opening along the circumference of the connecting tube, one end of the mouthpiece protrudes outwardly into two arc surfaces, and two angles are formed between the two arc surfaces;

[0011] The two baffles are respectively located in two angles between two protruding parts of the mouthpiece. The baffles are circular and are arranged to fit the outer wall of the mouthpiece. The baffles can be swingably arranged at the edge end of the mouthpiece.

[0012] Furthermore, the pipe mouth sleeve of the connecting pipe is provided with an air blowing pipe, and the flat end of the mouthpiece is connected to the end of the air blowing pipe away from the connecting pipe; and further comprises a folding sheet, which is folded in half and arranged in the angle between the baffle and the mouthpiece, one end of the folding sheet is connected to the inner arc wall of the baffle, and the other end is arranged to fit the outer wall of the mouthpiece;

[0013] The push block is annularly arranged around the outer periphery of the blowing mouth tube. The push block can move back and forth along the blowing mouth tube. A connecting piece is connected between the inner ring wall of the push block and one end of the folding piece that is in contact with the mouthpiece. When the push block moves, the connecting piece is pulled to stretch or fold the folding piece. The connecting piece is arranged in contact with the outer wall of the blowing mouth tube.

[0014] Furthermore, the air blowing port tube has two horizontally symmetrical strip grooves, the strip grooves extend along the axial direction of the air blowing port tube, and the air blowing port tube also has a strip opening connected to the strip grooves, the strip opening is connected to the outside world at a side away from the strip groove, and the strip opening is located in the middle of the strip groove;

[0015] A sliding rod is arranged in the strip-shaped groove. The sliding rod is arranged parallel to the axial direction of the strip-shaped groove inside the strip-shaped groove, and the length of the sliding rod is higher than the length of the strip-shaped opening. A connecting block is installed on the outer wall of the sliding rod. The connecting block extends to the outside of the strip-shaped groove through the strip-shaped opening. One end of the connecting piece away from the folding piece is connected to the outer wall of the connecting block, and one end of the connecting block away from the sliding rod is connected to the inner arc wall of the pushing block.

[0016] Further, a sealing ring is connected to one end of the mouthpiece away from the air blowing pipe. The sealing ring is arranged around the circumference of one end of the mouthpiece; both the mouthpiece and the air blowing pipe are provided with inner cavities, and the two inner cavities are communicated. A chamber is arranged in the sealing ring, and an annular notch is arranged at the connection between the sealing ring and the mouthpiece. The chamber is communicated with the inner cavity through the annular notch;

[0017] The air blowing pipe is provided with an annular opening communicated with the inner cavity. An extrusion ring is installed on the inner wall of the annular opening. The extrusion ring blocks the annular opening to make the inner cavity not communicate with the outside, and the extrusion ring bulges towards the periphery of the annular opening; A sealing ring is installed on the inner wall of the chamber. The sealing ring is arranged around the circumference of the sealing ring. Both the inner cavity and the chamber are in a sealed environment.

[0018] Further, the inner arc wall of the baffle is connected to the outer wall of the sealing ring.

[0019] Further, the sealing ring is arranged around the circumference of the sealing ring on the periphery of the sealing ring, and the sealing ring and the air blowing pipe are in the same plane.

[0020] Further, a first inclined surface and a second inclined surface are arranged on the surface of the pushing block corresponding to the mouthpiece. The second inclined surface is located inside the first inclined surface. Both the first inclined surface and the second inclined surface are inclined towards the direction of the air blowing pipe at the bottom, and the inclination angle of the second inclined surface is greater than the inclination angle of the first inclined surface.

[0021] Further, a through hole is arranged in the pushing block. The through hole is arranged along the circumferential direction of the pushing block. A water absorption ring surrounding the outer periphery of the air blowing pipe is installed on the inner wall of the through hole. The inner ring wall of the water absorption ring is attached to the outer wall of the air blowing pipe.

[0022] Further, a baffle is installed on the outer wall of the air blowing pipe. The baffle is located at one end of the air blowing pipe away from the mouthpiece. One end of the baffle corresponding to the mouthpiece is installed with a corrugated pipe that can be contracted or extended. The corrugated pipe is sleeved on the air blowing pipe along the circumferential direction of the air blowing pipe. One end of the corrugated pipe away from the baffle is connected to one end of the pushing block away from the first inclined surface. The corrugated pipe is made of an elastic material.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. In the present invention, the connecting tube is used to transport the gas blown out by the patient to the main body of the respiratory rehabilitation instrument. The mouthpiece is a special cylinder, one end of which is flat and connected to the connecting tube, and the other end is inclined and expanded outward, protruding up and down and bulging in the middle, fitting the oral structure, and being convenient for the patient to hold it in the mouth. After the baffle is bent, it fits the edge of the mouthpiece, has a small contact area, and can swing with the edge as the swing point. When the patient holds the mouthpiece, the baffle covers the corners of the mouth, and the inclination angle can be adjusted as needed to strictly prevent gas leakage from the corners of the mouth.

[0025] 2. In the present invention, the hard plastic at the end of the mouthpiece is matched with a sealing ring, which is closed in a circle according to the contour of the mouthpiece. When the patient holds the mouthpiece, the lips are located on the squeezing ring. When blowing, the lips will contract and squeeze the squeezing ring. The gas makes the sealing ring bulge and get closer to the patient's mouth, which can prevent air leakage and prevent the mouthpiece from falling out. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the connection structure between the bellows and the push block in the present invention;

[0028] Figure 3 It is a schematic diagram of the connection structure between the blowing port tube and the extrusion ring in the present invention;

[0029] Figure 4 It is a schematic diagram of the connection structure between the folding sheet and the connecting sheet in the present invention;

[0030] Figure 5 It is a schematic diagram of the connection structure between the baffle plate and the folding plate in the present invention;

[0031] Figure 6 It is a schematic diagram of the connection structure between the strip groove and the slide rod in the present invention;

[0032] Figure 7 It is a schematic diagram of the connection structure between the air blowing port tube and the strip opening in the present invention;

[0033] Figure 8 It is a schematic diagram of the connection structure between the blowing mouth tube and the mouthpiece in the present invention;

[0034] Fig. 9 It is a schematic diagram of the connection structure between the sealing ring and the annular notch in the present invention;

[0035] Fig.10 is a schematic diagram of a baffle in the present invention;

[0036] Fig.11 It is a schematic diagram of the connection structure between the baffle and the sealing ring in the present invention;

[0037] Fig.12 for Figure 3 A magnified view of the structure at center A;

[0038] Fig.13 for Figure 8 A magnified view of the structure at B in the middle;

[0039] Fig.14 for Figure 8 Enlarged view of the structure at C in the middle.

[0040] In the figure: 1. The main body of the respiratory rehabilitation device;

[0041] 2. Connecting pipe; 3. Blowing port pipe; 4. Bellows; 5. Baffle; 6. Baffle plate; 7. Mouthpiece; 8. Sealing ring; 9. Push block; 901. First inclined surface; 902. Second inclined surface; 903. Through port; 10. Extrusion ring; 11. Folding plate; 12. Connecting plate; 13. Strip opening; 14. Water absorption ring; 15. Strip groove; 16. Sliding rod; 17. Connecting block; 18. Inner cavity; 19. Annular opening; 20. Annular notch; 21. Chamber; 22. Sealing ring. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] The present invention provides a technical solution:

[0044] See also Figure 1-Figure 4 As shown, a respiratory muscle strength training rehabilitation instrument comprises a respiratory rehabilitation instrument body 1 and a connecting tube 2 for transmitting the patient's blown or exhaled gas, and also comprises a mouthpiece 7, which is arranged at the pipe opening of the connecting tube 2 away from the respiratory rehabilitation instrument body 1, and the mouthpiece 7 is cylindrical and has the same diameter as the connecting tube 2. The mouthpiece 7 is fixed to the pipe opening along the circumference of the connecting tube 2, and one end of the mouthpiece 7 protrudes outwardly into two arc surfaces, and two angles are formed between the two arc surfaces;

[0045] The two baffles 6 are respectively located in two angles between two protruding parts of the mouthpiece 7. The baffles 6 are circular and are arranged to fit the outer wall of the mouthpiece 7. The baffles 6 can be swingably arranged at the edge end of the mouthpiece 7.

[0046] First by Figure 1 It is shown that one end of the connecting tube 2 is connected to the air inlet of the respiratory rehabilitation instrument body 1, and the connecting tube 2 is made of plastic. The connecting tube 2 can also be made of a plastic corrugated pipe material. When in use, the connecting tube 2 is inserted into the air inlet of the respiratory rehabilitation instrument body 1, so that when the patient blows into the connecting tube 2, the connecting tube 2 can send the gas into the respiratory rehabilitation instrument body 1 through the air inlet;

[0047] Then with Figure 2 From the perspective of the mouthpiece 7, the mouthpiece 7 is cylindrical in shape, so one end of the mouthpiece 7 is flat, so the flat end of the mouthpiece 7 is connected to the connecting tube 2, and the end of the mouthpiece 7 away from the connecting tube 2 is Figure 2 From the middle, it gradually expands towards the periphery, and the upper and lower parts protrude to the left, and then Figure 7 From the perspective of the embodiment, the area between the two protruding parts bulges toward the left and right sides, but does not protrude in the same direction above and below the mouthpiece 7;

[0048] Back to Figure 2 From the perspective of the patient, when blowing, the patient needs to hold the mouthpiece 7 in his mouth, and the protruding parts above and below the mouthpiece 7 correspond to the patient's upper jaw and lower jaw respectively. When looking at the person's face from the side, it can be seen that the corners of the person's mouth extend backwards, so the position of the baffle 6 is not as left as the two protruding parts to the left. In this way, when the patient holds the mouthpiece 7 in his mouth, the corner of the patient's mouth at the back will be just inside the baffle 6. The initial shape of the baffle 6 is a flat disc shape, and then the baffle 6 is bent to fit the mouthpiece 7, and then a part of the baffle 6 protrudes from the mouthpiece 7, so in Figure 3 It can also be seen that one side of the baffle 6 corresponds to the outer wall of the mouthpiece 7, while the other side is suspended;

[0049] Moreover, the portion where the baffle 6 and the mouthpiece 7 are in contact is only the edge of one end of the mouthpiece 7, that is, Figure 7 The edges of the parts protruding to the left and right on both sides of the mouthpiece 7, so the curvature of the baffle 6, also fits the bulging curvature of the parts protruding to the left and right on both sides of the mouthpiece 7. Therefore, the contact area between the mouthpiece 7 and the baffle 6 is very small, which allows the baffle 6 to use the edge of the mouthpiece 7 as a swing point. When the baffle 6 swings left and right, the inner arc wall of the baffle 6 after bending will always fit the edge of the mouthpiece 7;

[0050] Therefore, when the patient holds the mouthpiece 7, the corners of the mouth are just at Figure 7 The middle mouthpiece 7 is positioned in the part protruding to the left and right on both sides, and then the baffle 6 can be swung, and then Figure 4 From the perspective of , after swinging the baffle 6, the suspended parts of the two baffles 6 are relatively close to each other. At this time, the baffle 6 corresponds to the corners of the patient's mouth. The baffle 6 moves close to the corners of the mouth and covers the corners of the patient's mouth. The inclination angle of the baffle 6 can be determined according to the fatness or thinness of the patient's face, so that the inner arc wall of the baffle 6 fits the face more closely, thereby covering the corners of the mouth more tightly, further preventing gas from leaking from the corners of the mouth when the patient blows.

[0051] See also Figure 2-Figure 12The pipe mouth sleeve of the connecting pipe 2 is provided with an air blowing pipe 3, and the flat end of the mouthpiece 7 is fixedly connected to the end of the air blowing pipe 3 away from the connecting pipe 2; it also includes a folding sheet 11, which is folded and arranged in the angle between the baffle 6 and the mouthpiece 7, one end of the folding sheet 11 is fixedly connected to the inner arc wall of the baffle 6, and the other end is arranged to fit the outer wall of the mouthpiece 7;

[0052] The push block 9 is annularly arranged around the outer periphery of the blowing port tube 3. The push block 9 can move back and forth along the blowing port tube 3. A connecting piece 12 is connected between the inner ring wall of the push block 9 and one end of the folding piece 11 that is in contact with the mouthpiece 7. When the push block 9 moves, the connecting piece 12 is pulled to stretch or fold the folding piece 11. The connecting piece 12 is arranged to be in contact with the outer wall of the blowing port tube 3.

[0053] The inhalation mouth tube 3 is directly sleeved on the end of the connecting tube 2 away from the respiratory rehabilitation instrument body 1, and the inner wall of the inhalation mouth tube 3 is closely attached to the outer wall of the connecting tube 2, and the flat end of the mouthpiece 7 is fixedly connected to the end of the inhalation mouth tube 3 away from the connecting tube 2. Figure 3 It can be seen that the folding sheet 11 is in a folded state, the folding sheet 11 is folded in the gap between the baffle 6 and the mouthpiece 7, one end of the folding sheet 11 is fixedly connected to the edge end of the inner arc wall of the baffle 6, and then one side of the folding sheet 11 is in contact with the inner arc wall of the baffle 6, and the other side of the folding sheet 11 is in contact with the outer wall of the mouthpiece 7;

[0054] An annular push block 9 is sleeved on the periphery of the air blowing mouth tube 3. The initial position of the push block 9 is close to the mouthpiece 7. When the patient opens his mouth to hold the mouthpiece 7, his lips will first touch the push block 9 and push it to move a short distance in the direction of the connecting tube 2 until the patient holds it in the mouth to a suitable position. While the push block 9 is being pushed, the push block 9 moves along the outer wall of the air blowing mouth tube 3, and then the push block 9 pulls the connecting piece 12 to move together in the direction of the connecting tube 2;

[0055] When the connecting piece 12 moves, it will pull the end of the folding piece 11 that is close to the mouthpiece 7. Since the other end of the folding piece 11 is connected to the baffle 6, when the end of the folding piece 11 that is close to the mouthpiece 7 is pulled, the folding angle of the respiratory rehabilitation instrument body 1 will become larger, and the angle at the folding point will gradually move in the direction of movement of the connecting piece 12, and the end of the baffle 6 that is connected to the folding piece 11 will move away from the mouthpiece 7, just like Figure 4 As in the embodiment, after the folding sheet 11 is partially unfolded, the baffle sheet 6 is pushed by the folding sheet 11 and then swings, so that the side of the baffle sheet 6 corresponding to the face moves closer to the corner of the mouth;

[0056] The edge of the mouthpiece 7 is very thin, equivalent to a line, so the inner arc wall of the baffle 6 is close to the edge as thin as a line, so that when the baffle 6 swings, the inner arc wall of the baffle 6 can be in contact with the edge of the mouthpiece 7 and then swing;

[0057] The folding sheet 11 is made of plastic and has resilience. Therefore, when the push block 9 releases the pulling force on the connecting sheet 12, the folding sheet 11 can be folded to the initial shape by its own resilience.

[0058] See also Figure 3-Figure 12 The blowing port tube 3 has two horizontally symmetrical strip grooves 15, the strip grooves 15 extend along the axial direction of the blowing port tube 3, and the blowing port tube 3 also has a strip opening 13 connected to the strip groove 15, the strip opening 13 is connected to the outside world away from the side of the strip groove 15, and the strip opening 13 is located in the middle of the strip groove 15;

[0059] A slide bar 16 is provided in the strip groove 15. The slide bar 16 is provided inside the strip groove 15 along the axial direction of the strip groove 15 and is parallel to the inside of the strip groove 15. The length of the slide bar 16 is longer than the length of the strip opening 13. A connecting block 17 is fixedly installed on the outer wall of the slide bar 16. The connecting block 17 extends to the outside of the strip groove 15 through the strip opening 13. One end of the connecting piece 12 away from the folding piece 11 is fixedly connected to the outer wall of the connecting block 17. One end of the connecting block 17 away from the slide bar 16 is fixedly connected to the inner arc wall of the push block 9. When one end of the slide bar 16 is against the inner wall of the strip groove 15, there is a gap between the other end and the inner wall of the strip groove 15.

[0060] When the push block 9 moves, it first pulls the connecting block 17 and drives the slide bar 16 to move along the strip groove 15. The strip opening 13 provides space for the connecting block 17 to move. When the connecting block 17 moves, it will pull the connecting piece 12 to move together. The slide bar 16 is located inside the strip groove 15 to fix the position of the connecting block 17. After the position of the connecting block 17 is fixed, the connecting piece 12 will not fall off because the connecting piece 12 is not connected to the blowing port tube 3.

[0061] See also Figure 1-Figure 14 The end of the mouthpiece 7 away from the air blowing tube 3 is connected with a sealing ring 8, and the sealing ring 8 is arranged around the circumference of one end of the mouthpiece 7; the mouthpiece 7 and the air blowing tube 3 are both provided with an inner cavity 18, and the two inner cavities 18 are connected. A chamber 21 is provided in the sealing ring 8, and an annular notch 20 is provided at the connection between the sealing ring 8 and the mouthpiece 7, and the chamber 21 is connected with the inner cavity 18 through the annular notch 20;

[0062] The blowing port tube 3 is provided with an annular opening 19 connected to the inner cavity 18, and an extrusion ring 10 is fixedly installed on the inner wall of the annular opening 19. The extrusion ring 10 blocks the annular opening 19 so that the inner cavity 18 is not connected to the outside, and the extrusion ring 10 bulges toward the periphery of the annular opening 19; a sealing ring 22 is fixedly installed on the inner wall of the chamber 21, and the sealing ring 22 surrounds the sealing ring 8 in the circumferential direction, and the inner cavity 18 and the chamber 21 are both sealed environments.

[0063] The sealing ring 8 is fixedly mounted on the end of the mouthpiece 7 away from the air blowing tube 3, and the sealing ring 8 goes around the protruding part of the mouthpiece 7 in a circle according to the edge direction, and finally the initial end and the tail end of the sealing ring 8 are closed to form a complete and closed sealing ring 8. The sealing ring 8, the air blowing tube 3 and the mouthpiece 7 are all made of hard plastic, while the sealing ring 22 is made of elastic material, such as soft rubber with a rebound effect, and the sealing ring 22 is located at the outermost periphery of the sealing ring 8. The extrusion ring 10 is not elastic, but will not leak. Therefore, after the inner cavity 18 is filled with gas, the extrusion ring 10 will bulge, because the width of the extrusion ring 10 is wider than the width of the annular opening 19. After being stretched open by the gas, the entire fabric of the extrusion ring 10 is stretched open, so the extrusion ring 10 looks bulging from the outside. Since the sealing ring 22 is elastic and has resistance, the gas will first stretch the extrusion ring 10.

[0064] First, the position of the extrusion ring 10 is set in advance. When the patient holds the mouthpiece 7, the sealing ring 8 will enter the patient's oral cavity. At this time, the edge of the patient's outer lips is just located on the extrusion ring 10. The extrusion ring 10 is in a bulging state in the initial state, so the extrusion ring 10 will protrude from the surface of the blowing mouth tube 3. Then, when the patient blows, in order to exert force better, the patient's lips will unconsciously tighten. At this time, the contracted lips will squeeze the extrusion ring 10, causing the extrusion ring 10 to shrink toward the inner cavity 18. The inner cavity 18 is filled with gas in advance, and these gases just support the extrusion ring 10 to bulge. When the extrusion ring 10 shrinks, these gases will rush to the annular notch 20, enter the chamber 21 through the annular notch 20, and finally cause the sealing ring 22 to bulge outward;

[0065] The bulging sealing ring 22 expands in the oral cavity and gets closer to the oral cavity wall of the patient, which can further prevent the blown gas from leaking from the lips, and will not be dislodged from the mouthpiece 7 and the blowing mouthpiece 3 due to the impact of the gas when the patient blows hard on the blowing mouthpiece 3 and the mouthpiece 7, which can make the contact between the mouthpiece 7 and the oral cavity closer, and the sealing ring 8 can only bulge outwards a small distance, and can only get closer to the oral cavity, and will not exert pressure on the oral cavity or push the oral cavity outwards;

[0066] After the extrusion ring 10 is released, the sealing ring 22 will return to its original shape by its own elastic force, so that the extrusion ring 10 will swell again.

[0067] See also Fig.11 The inner arc wall of the baffle 6 is fixedly connected to the outer wall of the sealing ring 8.

[0068] The inner arc wall of the baffle 6 is fixedly connected to the edge of the sealing ring 8. Since the sealing ring 8 and the baffle 6 are both made of plastic, the connection between the baffle 6 and the sealing ring 8 can swing. When the baffle 6 swings, the connection between the baffle 6 and the sealing ring 8 will deform, so that the baffle 6 can swing without causing the blown gas to leak from the contact portion between the sealing ring 8 and the baffle 6.

[0069] See also Figure 8-Figure 13 The sealing ring 22 surrounds the outer periphery of the sealing ring 8 along the circumferential direction of the sealing ring 8, and the sealing ring 22 and the blowing port tube 3 are located in the same plane.

[0070] After the patient holds the mouthpiece 7, the patient's upper jaw and lower jaw are facing the surface of the mouthpiece 7, that is, the outer wall of the air blowing tube 3. Because the outer walls of the air blowing tube 3 and the mouthpiece 7 are both in the circumferential direction, and the sealing ring 22 is located at the periphery, the sealing ring 22 can directly approach the oral cavity wall after bulging.

[0071] See also Figure 2 A first inclined surface 901 and a second inclined surface 902 are provided on one side of the push block 9 corresponding to the mouthpiece 7. The second inclined surface 902 is located inside the first inclined surface 901. The bottoms of the first inclined surface 901 and the second inclined surface 902 are inclined toward the direction of the blowing port tube 3. The inclination angle of the second inclined surface 902 is greater than the inclination angle of the first inclined surface 901.

[0072] The lips are composed of skin, orbicularis oris muscle and mucosa from outside to inside. The everted side of the lips is mainly skin, the stratum corneum on its surface is relatively thick, the water evaporates relatively slowly, and the skin itself has a weak ability to secrete oil, so it is usually dry and has no saliva. The side where the two lips touch each other is mucosa, which is very thin and soft, rich in mucous glands and sensory nerve endings. The mucous glands will continuously secrete mucus, which is what we call saliva. Therefore, when the patient opens his mouth and approaches the push block 9, the everted side of the lips will touch the first inclined surface 901, and the wet part of the lips corresponds to the second inclined surface 902. Therefore, it is mainly the drier everted side of the lips that pushes the first inclined surface 901 to move the push block 9;

[0073] In order to prevent the wet surface of the lips from getting saliva on the push block 9, the second inclined surface 902 corresponding to the wet surface should be more inclined toward the direction of the connecting tube 2, so as to ensure that it does not contact the wet surface of the lips. The slight inclination of the first inclined surface 901 is to adapt to the inclination of the everted surface of the lips and improve the comfort of the contact between the mouth and the push block 9.

[0074] See also Figure 2 The push block 9 is provided with a through opening 903, which is arranged along the circumferential direction of the push block 9. The inner wall of the through opening 903 is fixedly installed with a water absorption ring 14 surrounding the outer periphery of the blowing port tube 3, and the inner ring wall of the water absorption ring 14 is in contact with the outer wall of the blowing port tube 3.

[0075] When the push block 9 moves, it drives the water absorption ring 14 to move along the outer wall of the air blowing tube 3. After the patient holds the mouthpiece 7 and the air blowing tube 3, the patient's saliva will remain on the mouthpiece 7 and the air blowing tube 3. When the patient blows, the lips will contract and exert force, and the force-bearing surface of the lips is on the air blowing tube 3. If the air blowing tube 3 is covered with saliva, the friction between the lips will be reduced, so the air blowing tube 3 and the lips will slip. After the patient blows, the mouthpiece 7 and the air blowing tube 3 are likely to move toward the outside of the oral cavity due to the impact of the gas, and the air blowing tube 3 will also move along the lips.

[0076] If the blowing mouth tube 3 and the mouthpiece 7 move during blowing, the risk of gas leakage will increase. Therefore, the moving push block 9 drives the water absorption ring 14 to move along the outer wall of the blowing mouth tube 3. The water absorption ring 14 can be used to wipe the wet saliva on the outer wall of the blowing mouth tube 3, thereby increasing the friction between the blowing mouth tube 3 and the lips, so that the blowing mouth tube 3 is not easy to slide from the lips during blowing.

[0077] See also Figure 1-Figure 2 A baffle 5 is fixedly installed on the outer wall of the blowing port tube 3, and the baffle 5 is located at the end of the blowing port tube 3 away from the mouthpiece 7. A retractable or stretchable bellows 4 is fixedly installed on the end of the baffle 5 corresponding to the mouthpiece 7. The bellows 4 is sleeved on the blowing port tube 3 along the circumferential direction of the blowing port tube 3, and the end of the bellows 4 away from the baffle 5 is fixedly connected to the end of the push block 9 away from the first inclined surface 901, and the bellows 4 is made of elastic material.

[0078] When the push block 9 moves toward the baffle 5, it squeezes the bellows 4, causing the bellows 4 to shrink. The bellows 4 can be made of plastic material, so that the bellows 4 will not only shrink after being squeezed by the push block 9, but also rebound and push the push block 9 back to its original position after the lips leave the push block 9.

Claims

1. A respiratory muscle strength training rehabilitation device, comprising a respiratory rehabilitation device body (1) and a connecting tube (2) for transmitting the patient's blown or exhaled gas, characterized in that: Also includes, A mouthpiece (7) is arranged at the pipe opening of the connecting pipe (2) away from the respiratory rehabilitation instrument body (1); the mouthpiece (7) is cylindrical and has the same diameter as the connecting pipe (2); the mouthpiece (7) is fixed to the pipe opening along the circumference of the connecting pipe (2); one end of the mouthpiece (7) protrudes outwards to form two arc surfaces, and two angles are formed between the two arc surfaces; The two baffles (6) are respectively located in two angles between two protruding parts on the mouthpiece (7); the baffles (6) are circular and are arranged to fit the outer wall of the mouthpiece (7); the baffles (6) can be swingably arranged at the edge end of the mouthpiece (7).

2. A respiratory muscle strength training rehabilitation device as claimed in claim 1, characterized in that: The pipe mouth sleeve of the connecting pipe (2) is provided with an air blowing pipe (3), and the flat end of the mouthpiece (7) is connected to an end of the air blowing pipe (3) away from the connecting pipe (2); It also includes a folding sheet (11), which is folded in half and arranged in the angle between the baffle (6) and the mouthpiece (7), one end of the folding sheet (11) is connected to the inner arc wall of the baffle (6), and the other end is arranged in contact with the outer wall of the mouthpiece (7); The push block (9) is annularly arranged around the outer periphery of the blowing mouth tube (3). The push block (9) can reciprocate along the blowing mouth tube (3). A connecting piece (12) is connected between the inner ring wall of the push block (9) and one end of the folding piece (11) that is in contact with the mouthpiece (7). When the push block (9) moves, the connecting piece (12) is pulled to stretch or fold the folding piece (11). The connecting piece (12) is arranged in contact with the outer wall of the blowing mouth tube (3).

3. A respiratory muscle strength training rehabilitation device as claimed in claim 2, characterized in that: The air blowing port tube (3) is provided with two strip grooves (15) in a horizontally symmetrical manner, the strip grooves (15) extending along the axial direction of the air blowing port tube (3), and the air blowing port tube (3) is also provided with a strip opening (13) communicating with the strip grooves (15), the side of the strip opening (13) away from the strip grooves (15) is communicated with the outside, and the strip opening (13) is located in the middle of the strip grooves (15); A slide bar (16) is arranged in the strip groove (15), and the slide bar (16) is arranged inside the strip groove (15) in parallel along the axial direction of the strip groove (15), and the length of the slide bar (16) is longer than the length of the strip opening (13). A connecting block (17) is installed on the outer wall of the slide bar (16), and the connecting block (17) extends to the outside of the strip groove (15) through the strip opening (13). One end of the connecting sheet (12) away from the folding sheet (11) is connected to the outer wall of the connecting block (17), and one end of the connecting block (17) away from the slide bar (16) is connected to the inner arc wall of the push block (9).

4. A respiratory muscle strength training rehabilitation device as claimed in claim 3, characterized in that: One end of the mouthpiece (7) away from the air blowing tube (3) is connected to a sealing ring (8), and the sealing ring (8) is arranged around the circumference of one end of the mouthpiece (7); The mouthpiece (7) and the air blowing tube (3) are both provided with an inner cavity (18), the two inner cavities (18) are communicated with each other, a chamber (21) is provided in the sealing ring (8), an annular notch (20) is provided at the connection between the sealing ring (8) and the mouthpiece (7), and the chamber (21) is communicated with the inner cavity (18) through the annular notch (20); The blowing port tube (3) is provided with an annular opening (19) communicating with the inner cavity (18), and an extrusion ring (10) is installed on the inner wall of the annular opening (19). The extrusion ring (10) blocks the annular opening (19) so that the inner cavity (18) is not connected with the outside, and the extrusion ring (10) bulges toward the periphery of the annular opening (19); A sealing ring (22) is installed on the inner wall of the chamber (21), and the sealing ring (22) surrounds the sealing ring (8) in the circumferential direction, so that the inner cavity (18) and the chamber (21) are both sealed environments.

5. A respiratory muscle strength training rehabilitation device as claimed in claim 4, characterized in that: The inner arc wall of the blocking piece (6) is connected to the outer wall of the sealing ring (8).

6. A respiratory muscle strength training rehabilitation device as claimed in claim 5, characterized in that: The sealing ring (22) surrounds the periphery of the sealing ring (8) along the circumferential direction of the sealing ring (8), and the sealing ring (22) and the blowing port tube (3) are located in the same plane.

7. A respiratory muscle strength training rehabilitation device as claimed in claim 6, characterized in that: A first inclined surface (901) and a second inclined surface (902) are provided on one side of the push block (9) corresponding to the mouthpiece (7); the second inclined surface (902) is located inside the first inclined surface (901); the first inclined surface (901) and the second inclined surface (902) are both inclined at their bottoms toward the direction of the blowing port tube (3); and the inclination angle of the second inclined surface (902) is greater than the inclination angle of the first inclined surface (901).

8. A respiratory muscle strength training rehabilitation device as claimed in claim 7, characterized in that: The push block (9) is provided with a through opening (903) which is arranged along the circumferential direction of the push block (9). The inner wall of the through opening (903) is provided with a water absorption ring (14) which surrounds the outer periphery of the air blowing pipe (3). The inner ring wall of the water absorption ring (14) is in contact with the outer wall of the air blowing pipe (3).

9. A respiratory muscle strength training rehabilitation device as claimed in claim 8, characterized in that: The outer wall of the blowing port tube (3) is installed with a baffle (5), and the baffle (5) is located at the end of the blowing port tube (3) away from the mouthpiece (7). The end of the baffle (5) corresponding to the mouthpiece (7) is installed with a retractable or stretchable bellows (4), and the bellows (4) is sleeved on the blowing port tube (3) along the circumferential direction of the blowing port tube (3). The end of the bellows (4) away from the baffle (5) is connected to the end of the push block (9) away from the first inclined surface (901), and the bellows (4) is made of elastic material.

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