Auxiliary breathing device for heart failure patient

Abstract

The invention discloses an auxiliary breathing device for heart failure patients, and relates to the technical field of breathing assistion.The auxiliary breathing device comprises a humidifying machine and a fastener, the humidifying machine is in transmission connection with an air guide assembly through a conveying pipe, the humidifying machine comprises a humidifying box, and a semi-permeable membrane is arranged at the position, close to the upper portion, in the humidifying box; and a humidifying liquid is contained in the portion, located below the semi-permeable membrane, of the interior of the humidifying box, an air inlet penetrates through the top of the humidifying box, the lower end of the air inlet is located in the humidifying box and connected with an air conveying pipe, and the air conveying pipe penetrates through the semi-permeable membrane. According to the breathing assisting device for the heart failure patient, breathing oxygen can be humidified, the oxygen is kept in a moist state, a worm gear fan can be driven to rotate through flowing of the oxygen, and therefore a stirring rod can stir humidifying liquid, the oxygen makes full contact with the humidifying liquid, and the humidifying effect of the oxygen is guaranteed; according to the fixing device, the breathing device can be conveniently fixed and is not prone to falling off, and the fixing device can be adjusted according to head shapes of different sizes.

Description

Technical Field

[0001] The present invention relates to the technical field of respiratory assistance, and in particular to a respiratory assistance device for patients with heart failure. Background Art

[0002] Heart failure is a common cardiovascular disease, which means that the heart cannot effectively pump blood to meet the body's needs for oxygen and nutrients. Heart failure patients often experience symptoms such as dyspnea and fatigue, which can be life-threatening in severe cases. Currently, the treatment for heart failure patients mainly includes drug therapy, heart transplantation and mechanical assistance. During treatment, a respiratory device is required to provide support for the patient.

[0003] Traditional assisted breathing devices still have some defects, as follows:

[0004] The oxygen produced by traditional assisted breathing devices is usually relatively dry. Inhaling dry oxygen for a long time may cause dryness of the respiratory tract, nasal discomfort, coughing, etc. Although some assisted breathing devices are equipped with oxygen humidifiers, the oxygen and humidifying liquid are not in sufficient contact, which affects the humidification quality;

[0005] The nasal cannula of traditional assisted breathing devices is non-adjustable, so it cannot be used for noses of different sizes, and its applicability is limited;

[0006] Traditional assisted breathing devices are prone to loosening during use, causing the nasal cannula to fall off. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a respiratory assistance device for patients with heart failure, which solves the problems raised in the above background.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions: a respiratory auxiliary device for heart failure patients, including a humidifier and a fastener, wherein the humidifier and the air guide component are connected through a transmission tube.

[0009] The humidifier includes a humidification box, a semipermeable membrane is arranged at the upper part of the interior of the humidification box, and humidifying liquid is installed at the position below the semipermeable membrane in the interior of the humidification box, an air inlet is penetrated through the top of the humidification box, the lower end of the air inlet is located in the humidification box and is connected to an air pipe, the air pipe passes through the semipermeable membrane, and a connecting chamber is arranged on the air pipe below the semipermeable membrane, the connecting chamber is communicated with the inside of the air pipe, and an annular sleeve is rotatably arranged on the inner wall of the connecting chamber, a turbo fan is arranged on the inner side of the annular sleeve, a magnetic sleeve is arranged on one side of the outer wall of the connecting chamber, the magnetic sleeve can slide on the connecting chamber, and an L-shaped stirring rod is connected to the side of the magnetic sleeve away from the connecting chamber, and a strong magnet is arranged on the inner side of the annular sleeve.

[0010] Preferably, the strong magnet corresponds to the position of the magnetic sleeve, and the strong magnet attracts the magnetic sleeve, and the turbine fan is located at the central axis of the air pipe.

[0011] Preferably, an exhaust port is provided on one side of the humidification box at a position above the semipermeable membrane, and the exhaust port is connected to the delivery pipe.

[0012] Preferably, the fastener includes an adjustment seat, a reel one is rotatably provided on the inner side of the adjustment seat, one end of the reel one is connected to the reel two, and fastening ropes are wound on both the reel one and the reel two, the other ends of the two fastening ropes slide through the inner wall of the adjustment seat and are respectively connected to the two sides of the air guide component, the winding directions of the fastening ropes on the reel one and the reel two are consistent, and the fastener also includes an adjustment part for tightening and loosening the fastening ropes.

[0013] Preferably, the adjustment part includes a T-shaped knob and a bayonet arranged at the center of one end of reel two away from reel one, one end of the T-shaped knob slides through one side of the adjustment seat, the T-shaped knob can be rotated on the adjustment seat, and one end of the T-shaped knob is arranged in the bayonet and connected to the inner wall of the bayonet through a limit spring.

[0014] Preferably, a clamping shaft is provided on the inner end face of the T-shaped knob, and a plurality of clamping grooves are distributed in a ring shape on one side of the adjustment seat, so that when the T-shaped knob is rotated, the clamping shaft will pass through each clamping groove, and when the limit spring is at its original length, the clamping shaft will be inserted into the corresponding clamping groove.

[0015] Preferably, the air guide assembly includes a shell seat, one side of the shell seat is laterally slidably inserted with a limiting tube, one end of the limiting tube is connected to one end of the delivery tube, and the other end of the limiting tube is located in the shell seat and is connected to a cavity shell, the cavity shell is laterally slidably connected to the shell seat, and two elastic tubes communicating with the interior of the cavity shell are connected to the side of the cavity shell away from the limiting tube, the other ends of the two elastic tubes are connected to nasal catheters, a limiting groove is provided on the side of the shell seat away from the limiting tube, one end of the two nasal catheters away from the elastic tube passes through the limiting groove, and a spacing adjuster for adjusting the spacing between the two nasal catheters is provided on the upper part of the shell seat.

[0016] Preferably, the spacing adjuster includes a cylinder arranged on the top of the shell seat, the cylinder is communicated with the shell seat, and the upper end of the cylinder is provided with a threaded cylinder communicated with the interior thereof, an adjusting bolt is screwed into the thread of the threaded cylinder, one end of the adjusting bolt is located in the cylinder and rotatably provided with a conical part, the conical part is longitudinally slidably connected to the cylinder, and the lower end part of the conical part is conical.

[0017] Preferably, both sides of the inner wall of the shell seat are connected to a return spring, one end of the return spring is connected to a clamp, the clamp is against the nasal catheter, when the return springs on both sides inside the shell seat are at their original length, the two clamps just make the two nasal catheters fit together.

[0018] Preferably, the air guide assembly also includes an insertion regulator for adjusting the insertion depth of the nasal catheter, the insertion regulator includes a screw rotatably arranged on one side of the shell seat and a moving block fixedly sleeved on the outside of one end of the limiting tube close to the delivery tube, and the moving block is screwed onto the screw through a thread.

[0019] The present invention provides a respiratory assist device for patients with heart failure, which has the following beneficial effects compared with the prior art:

[0020] 1. The assisted breathing device for heart failure patients can humidify the breathed oxygen to keep the oxygen in a moist state, and the flow of oxygen can drive the worm fan to rotate, so that the stirring rod can stir the humidifying liquid, so that the oxygen and the humidifying liquid are fully in contact, thereby ensuring the humidification effect of the oxygen.

[0021] 2. The auxiliary breathing device for heart failure patients can be easily fixed to the breathing device and is not easy to fall off. The fixing device can be adjusted according to different head sizes, so that the breathing device can be fixed to heads of different sizes, and the operation is convenient and quick.

[0022] 3. During use, the auxiliary breathing device for heart failure patients can adjust the distance between the two nasal catheters and the insertion depth, so that it can adapt to the insertion of noses of different sizes and ensure the quality of the patient's oxygen inhalation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 It is a structural schematic diagram of the humidifier of the present invention;

[0025] Figure 3 For the present invention Figure 2 A schematic diagram of the partially enlarged structure of the structure at A in the middle;

[0026] Figure 4 It is a schematic diagram of the structure of the fastener of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the air guide component of the present invention;

[0028] Figure 6 It is a schematic diagram of the internal structure of the housing seat of the present invention;

[0029] Figure 7 It is a schematic diagram of the installation of the spacing adjuster structure of the present invention.

[0030] In the figure: 1. humidifier; 11. humidification box; 12. semipermeable membrane; 13. air inlet; 14. air delivery pipe; 15. connecting chamber; 16. annular sleeve; 17. turbo fan; 18. magnetic sleeve; 19. stirring rod; 110. strong magnet; 111. exhaust port; 2. delivery pipe; 3. air guide assembly; 31. housing seat; 32. stopper tube; 33. cavity shell; 34. elastic tube; 35. nasal catheter; 36. stopper groove; 37 , spacing adjuster; 371, cylinder; 372, threaded cylinder; 373, adjusting bolt; 374, tapered piece; 38, extending into adjuster; 381, screw rod; 382, ​​moving block; 39, return spring; 310, clamping plate; 4, fastener; 41, adjusting seat; 42, reel one; 43, reel two; 44, fastening rope; 45, bayonet; 46, T-knob; 47, limit spring; 48, clamping shaft; 49, clamping slot. DETAILED DESCRIPTION

[0031] 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.

[0032] See also Figure 1-Figure 7 , the present invention provides three technical solutions:

[0033] Embodiment 1

[0034] See also Figure 1 In an embodiment of the present invention, a respiratory auxiliary device for patients with heart failure includes a humidifier 1 and a fastener 4. The humidifier 1 is connected to an air guide component 3 through a delivery tube 2.

[0035] See also Figure 2 and Figure 3 In the embodiment of the present invention, the humidifier 1 includes a humidification box 11, a semipermeable membrane 12 is arranged at the upper part of the interior of the humidification box 11, and a humidifying liquid is installed at a position below the semipermeable membrane 12 in the interior of the humidification box 11, an air inlet 13 is penetrated through the top of the humidification box 11, and the lower end of the air inlet 13 is located in the humidification box 11 and is connected to an air pipe 14, the air pipe 14 passes through the semipermeable membrane 12, and a connecting chamber 15 is arranged on the air pipe 14 below the semipermeable membrane 12, the connecting chamber 15 is communicated with the air pipe 14, and an annular sleeve 16 is rotatably arranged on the inner wall of the connecting chamber 15, a turbo fan 17 is arranged on the inner side of the annular sleeve 16, a magnetic sleeve 18 is arranged on one side of the outer wall of the connecting chamber 15, the magnetic sleeve 18 can slide on the connecting chamber 15, and an L-shaped stirring rod 19 is connected to the side of the magnetic sleeve 18 away from the connecting chamber 15, and a strong magnet 110 is arranged on the inner side of the annular sleeve 16.

[0036] In the above scheme: the air inlet 13 on the humidification box 11 is connected to the oxygen generator, and the oxygen generated by the oxygen generator enters the air supply pipe 14 through the air inlet 13. When the oxygen passes through the connecting chamber 15, the flowing oxygen will cause the turbofan 17 to rotate, and the turbofan 17 will drive the annular sleeve 16 to rotate. Since the strong magnet 110 has magnetism, the strong magnet 110 will generate suction on the magnetic sleeve 18. When the annular sleeve 16 rotates, the strong magnet 110 on the inner wall of the annular sleeve 16 also rotates with the annular sleeve 16, thereby driving the magnetic sleeve 18 to rotate around the connecting chamber 15. The stirring rod 19 on one side of the magnetic sleeve 18 will stir the humidifying liquid, and the oxygen in the air supply pipe 14 will then be released to contact with the humidifying liquid. Under the stirring of the stirring rod 19, the oxygen can fully contact with the humidifying liquid, thereby improving the humidification effect of the oxygen. After humidification, the oxygen is discharged through the semipermeable membrane 12 to supply oxygen to the patient.

[0037] For further information, see Figure 2 and Figure 3 In the embodiment of the present invention, the strong magnet 110 corresponds to the position of the magnetic sleeve 18, and the strong magnet 110 attracts the magnetic sleeve 18, so that when the annular sleeve 16 rotates, the strong magnet 110 drives the magnetic sleeve 18 to rotate, thereby realizing the stirring of the humidifying liquid by the stirring rod 19. The turbine fan 17 is located at the central axis position of the air supply pipe 14, so that when the oxygen passes through the turbine fan 17, it rotates.

[0038] For further information, see Figure 2 and Figure 3 In the embodiment of the present invention, an exhaust port 111 is provided on one side of the humidification box 11 above the semipermeable membrane 12 , and the exhaust port 111 is connected to the delivery pipe 2 .

[0039] The second embodiment is different from the first embodiment in that:

[0040] See also Figure 1 and Figure 4 In the embodiment of the present invention, the fastener 4 includes an adjusting seat 41, a reel 1 42 is rotatably provided on the inner side of the adjusting seat 41, one end of the reel 1 42 is connected to a reel 2 43, and fastening ropes 44 are wound on the reels 1 42 and 43, the other ends of the two fastening ropes 44 slide through the inner wall of the adjusting seat 41 and are respectively connected to the two sides of the air guide component 3, the fastening ropes 44 on the reels 1 42 and the reels 2 43 have the same winding direction, and the fastener 4 also includes an adjusting portion for tightening and loosening the fastening ropes 44.

[0041] See also Figure 1 and Figure 4In the embodiment of the present invention, the adjustment portion includes a T-shaped knob 46 and a bayonet 45 arranged at the center of one end of the reel 2 43 away from the reel 1 42, one end of the T-shaped knob 46 slides through one side of the adjustment seat 41, the T-shaped knob 46 can rotate on the adjustment seat 41, and one end of the T-shaped knob 46 is arranged in the bayonet 45 and connected to the inner wall of the bayonet 45 through a limit spring 47.

[0042] See also Figure 1 and Figure 4 In the embodiment of the present invention, a clamping shaft 48 is provided on the inner end surface of the T-shaped knob 46, and a plurality of clamping grooves 49 are distributed in a ring shape on one side of the adjustment seat 41, so that when the T-shaped knob 46 is rotated, the clamping shaft 48 will pass through each clamping groove 49, and when the limit spring 47 is at its original length, the clamping shaft 48 is inserted into the corresponding clamping groove 49.

[0043] In the above scheme: after the fastener 4 is put on the patient's head and the position of the air guide component 3 is adjusted, the T-knob 46 is pulled under the elasticity of the limit spring 47 to disengage the clamping shaft 48 from the clamping groove 49 on the adjustment seat 41, and then the T-knob 46 is rotated to drive the limit spring 47 to rotate, and the limit spring 47 drives the clamping mouth 45 to rotate, and the clamping mouth 45 drives the reel 1 42 and the reel 2 43 to rotate respectively. Since the winding directions of the fastening ropes 44 on the reel 1 42 and the reel 2 43 are the same, when the T-knob 46 is rotated, the two fastening ropes 44 can be wound or loosened at the same time, so that the two fastening ropes 44 can be fixed on heads of different sizes. After fixing, the T-knob 46 is loosened to insert the clamping shaft 48 on the T-knob 46 into the corresponding clamping groove 49, and the T-knob 46 is fixed to prevent the reel 1 42 and the reel 2 43 from rotating to loosen the fastening rope 44.

[0044] Embodiment 3 is different from Embodiment 1 in that:

[0045] See also Figure 5-Figure 7 In the embodiment of the present invention, the air guide component 3 includes a shell seat 31, and a limiting tube 32 is inserted and slidably inserted on one side of the shell seat 31, one end of the limiting tube 32 is connected to one end of the delivery tube 2, and the other end of the limiting tube 32 is located in the shell seat 31 and is connected to a cavity shell 33, and the cavity shell 33 is slidably connected to the shell seat 31, and two elastic tubes 34 communicating with the interior of the cavity shell 33 are connected to the side of the cavity shell 33 away from the limiting tube 32, and the other ends of the two elastic tubes 34 are connected to nasal catheters 35, and a limiting groove 36 is provided on the side of the shell seat 31 away from the limiting tube 32, and one end of the two nasal catheters 35 away from the elastic tube 34 passes through the limiting groove 36, and a spacing adjuster 37 for adjusting the spacing between the two nasal catheters 35 is provided on the upper part of the shell seat 31.

[0046] See also Figure 5-Figure 7In the embodiment of the present invention, the spacing adjuster 37 includes a cylinder 371 arranged on the top of the shell seat 31, the cylinder 371 is communicated with the shell seat 31, and the upper end of the cylinder 371 is provided with a threaded cylinder 372 communicated with the interior thereof, and an adjusting bolt 373 is screwed into the inner thread of the threaded cylinder 372, one end of the adjusting bolt 373 is located in the cylinder 371 and is rotatably provided with a conical member 374, the conical member 374 is longitudinally slidably connected in the cylinder 371, and the lower end portion of the conical member 374 is conical.

[0047] See also Figure 5-Figure 7 In the embodiment of the present invention, both sides of the inner wall of the shell seat 31 are connected with return springs 39, one end of the return spring 39 is connected with a clamp 310, and the clamp 310 is against the nasal catheter 35. When the return springs 39 on both sides of the shell seat 31 are at their original length, the two clamps 310 just make the two nasal catheters 35 fit together.

[0048] In the above scheme: by rotating the adjusting bolt 373, the cone 374 is driven to move downward, and the lower end of the cone 374 will be inserted between the two nasal catheters 35. As the cone 374 moves downward, the two sides of the lower end of the cone 374 respectively squeeze the side walls of the two nasal catheters 35. Under the elasticity of the reset spring 39 and the elastic tube 34, when the cone 374 squeezes the nasal catheters 35, the two nasal catheters 35 will move away from each other. When the cone 374 moves upward, the reset spring 39 will gradually reset the nasal catheters 35, so that the two nasal catheters 35 are close to each other, and then the distance between the two nasal catheters 35 can be adjusted, so that they can be inserted and used for noses of different sizes.

[0049] See also Figure 5-Figure 7 In the embodiment of the present invention, the air guide component 3 also includes an insertion regulator 38 for adjusting the insertion depth of the nasal catheter 35. The insertion regulator 38 includes a screw 381 rotatably arranged on one side of the shell seat 31 and a moving block 382 fixedly sleeved on the outside of the limiting tube 32 near one end of the delivery tube 2. The moving block 382 is screwed onto the screw 381 through a thread. Before oxygen supply, the fastener 4 is put on the patient's head, and the air guide component 3 is located at the position of the patient's nose, so that the two nasal catheters 35 are respectively inserted into the two nostrils of the patient. The moving block 382 is driven to move by rotating the screw 381, and the moving block 382 drives the limiting tube 32 to move. The limiting tube 32 drives the cavity shell 33 to move, and then drives the nasal catheter 35 to move, so as to adjust the depth of the nasal catheter 35 inserted into the patient's nostrils, so that the patient can better inhale oxygen.

[0050] Working principle: the air inlet 13 on the humidification box 11 is connected to the oxygen concentrator, and the oxygen generated by the oxygen concentrator enters the air delivery pipe 14 through the air inlet 13. When the oxygen passes through the connection chamber 15, the flowing oxygen will cause the turbofan 17 to rotate, and the turbofan 17 will drive the annular sleeve 16 to rotate. Since the strong magnet 110 has magnetism, the strong magnet 110 will generate suction to the magnetic sleeve 18. When the annular sleeve 16 rotates, the strong magnet 110 on the inner wall of the annular sleeve 16 also rotates with the annular sleeve 16, thereby driving the magnetic sleeve 18 to rotate around the connection chamber 15. The stirring rod 19 on one side of the magnetic sleeve 18 will stir the humidifying liquid, and the oxygen in the air delivery pipe 14 will then be released to contact with the humidifying liquid. Under the stirring of the stirring rod 19, the oxygen can fully contact with the humidifying liquid, thereby improving the humidification effect of the oxygen. After humidification, the oxygen is discharged through the semipermeable membrane 12 to supply oxygen to the patient.

[0051] Before oxygen supply, the fastener 4 is put on the patient's head, and the air guide assembly 3 is located at the position of the patient's nose, so that the two nasal catheters 35 are respectively inserted into the two nostrils of the patient, and the moving block 382 is driven to move by rotating the screw rod 381, and the moving block 382 drives the limiting tube 32 to move, and the limiting tube 32 drives the cavity shell 33 to move, and then drives the nasal catheter 35 to move, and adjusts the insertion depth of the nasal catheter 35 into the patient's nostrils, so that the patient can better absorb oxygen;

[0052] The conical member 374 is driven downward by rotating the adjusting bolt 373, and the lower end of the conical member 374 is inserted between the two nasal catheters 35. As the conical member 374 moves downward, the two sides of the lower end of the conical member 374 respectively squeeze the side walls of the two nasal catheters 35. Under the elasticity of the return spring 39 and the elastic tube 34, when the conical member 374 squeezes the nasal catheters 35, the two nasal catheters 35 move away from each other. When the conical member 374 moves upward, the return spring 39 gradually resets the nasal catheters 35, so that the two nasal catheters 35 are close to each other, and the distance between the two nasal catheters 35 can be adjusted, so that the nasal catheters 35 can be inserted and used for noses of different sizes.

[0053] After the fastener 4 is put on the patient's head and the position of the air guide component 3 is adjusted, the T-knob 46 is pulled under the elasticity of the limit spring 47 to disengage the clamping shaft 48 from the clamping groove 49 on the adjustment seat 41, and then the T-knob 46 is turned to drive the limit spring 47 to rotate, and the limit spring 47 drives the clamping socket 45 to rotate, and the clamping socket 45 drives the reel 1 42 and the reel 2 43 to rotate respectively. Since the winding directions of the fastening ropes 44 on the reel 1 42 and the reel 2 43 are the same, when the T-knob 46 is turned, the two fastening ropes 44 can be wound or loosened at the same time, so that the two fastening ropes 44 can be fixed on heads of different sizes. After fixing, the T-knob 46 is loosened to insert the clamping shaft 48 on the T-knob 46 into the corresponding clamping groove 49, and the T-knob 46 is fixed to prevent the reel 1 42 and the reel 2 43 from rotating to loosen the fastening rope 44.

[0054] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A respiratory assist device for patients with heart failure, comprising a humidifier (1) and a fastener (4), characterized in that: The humidifier (1) and the air guide assembly (3) are connected via a delivery pipe (2); The humidifier (1) comprises a humidification box (11), a semipermeable membrane (12) is arranged at the upper part of the interior of the humidification box (11), and a humidifying liquid is installed at a position below the semipermeable membrane (12) in the interior of the humidification box (11), an air inlet (13) is penetrated through the top of the humidification box (11), the lower end of the air inlet (13) is located in the humidification box (11) and is connected to an air supply pipe (14), the air supply pipe (14) passes through the semipermeable membrane (12), and a connecting portion is arranged on the air supply pipe (14) at a position below the semipermeable membrane (12). The connecting chamber (15) is connected to the air delivery pipe (14), and an annular sleeve (16) is rotatably provided on the inner wall of the connecting chamber (15), and a turbine fan (17) is provided on the inner side of the annular sleeve (16). A magnetic sleeve (18) is provided on one side of the outer wall of the connecting chamber (15), and the magnetic sleeve (18) can slide on the connecting chamber (15), and an L-shaped stirring rod (19) is connected to the side of the magnetic sleeve (18) away from the connecting chamber (15), and a strong magnet (110) is provided on the inner side of the annular sleeve (16).

2. A respiratory assist device for patients with heart failure according to claim 1, characterized in that: The strong magnet (110) corresponds to the position of the magnetic sleeve (18), and the strong magnet (110) attracts the magnetic sleeve (18). The turbine fan (17) is located at the central axis of the air delivery pipe (14).

3. The auxiliary breathing device for heart failure patients according to claim 1, characterized in that: An exhaust port (111) is provided on one side of the humidification box (11) at a position above the semi-permeable membrane (12), and the exhaust port (111) is connected to the delivery pipe (2).

4. The auxiliary breathing device for heart failure patients according to claim 1, characterized in that: The fastener (4) comprises an adjustment seat (41), a reel (42) is rotatably arranged inside the adjustment seat (41), one end of the reel (42) is connected to a reel (43), and a tightening rope (44) is wound on the reel (42) and the reel (43), the other ends of the two tightening ropes (44) slide through the inner wall of the adjustment seat (41) and are respectively connected to the two sides of the air guide component (3), the tightening ropes (44) on the reel (42) and the reel (43) have the same winding direction, and the fastener (4) further comprises an adjustment part for tightening and loosening the tightening rope (44).

5. A respiratory assist device for patients with heart failure according to claim 4, characterized in that: The adjusting portion comprises a T-shaped knob (46) and a bayonet (45) arranged at the center of one end of the second reel (43) away from the first reel (42), one end of the T-shaped knob (46) slides through one side of the adjusting seat (41), the T-shaped knob (46) can rotate on the adjusting seat (41), and one end of the T-shaped knob (46) is arranged in the bayonet (45) and connected to the inner wall of the bayonet (45) through a limit spring (47).

6. A respiratory assist device for patients with heart failure according to claim 5, characterized in that: The inner end surface of the T-shaped knob (46) is provided with a clamping shaft (48), and one side of the adjustment seat (41) is provided with a plurality of clamping grooves (49) distributed in an annular shape, so that when the T-shaped knob (46) is rotated, the clamping shaft (48) passes through each clamping groove (49), and when the limit spring (47) is at its original length, the clamping shaft (48) is inserted into the corresponding clamping groove (49).

7. The auxiliary breathing device for heart failure patients according to claim 1, characterized in that: The air guide component (3) comprises a shell seat (31), one side of the shell seat (31) is slidably inserted with a limiting tube (32), one end of the limiting tube (32) is connected to one end of the delivery tube (2), and the other end of the limiting tube (32) is located in the shell seat (31) and is connected to a cavity shell (33), the cavity shell (33) is slidably connected to the shell seat (31), one side of the cavity shell (33) away from the limiting tube (32) is connected to two elastic tubes (34) communicating with the inside of the cavity shell (33), the other ends of the two elastic tubes (34) are connected to nasal catheters (35), a limiting groove (36) is provided on the side of the shell seat (31) away from the limiting tube (32), one end of the two nasal catheters (35) away from the elastic tube (34) passes through the limiting groove (36), and a spacing adjuster (37) for adjusting the spacing between the two nasal catheters (35) is provided on the upper part of the shell seat (31).

8. The auxiliary breathing device for patients with heart failure according to claim 7, characterized in that: The spacing adjuster (37) comprises a cylinder (371) arranged at the top of the housing seat (31); the cylinder (371) is communicated with the interior of the housing seat (31); and a threaded cylinder (372) communicated with the interior of the cylinder (371) is arranged at the upper end of the cylinder (371); an adjusting bolt (373) is screwed into the inner thread of the threaded cylinder (372); one end of the adjusting bolt (373) is rotatably arranged in the cylinder (371); the tapered member (374) is longitudinally slidably connected to the cylinder (371); and the lower end portion of the tapered member (374) is tapered.

9. The auxiliary breathing device for heart failure patients according to claim 8, characterized in that: Both sides of the inner wall of the housing seat (31) are connected to a return spring (39), one end of the return spring (39) is connected to a clamp (310), the clamp (310) is against the nasal catheter (35), and when the return springs (39) on both sides inside the housing seat (31) are at their original length, the two clamps (310) just make the two nasal catheters (35) fit together.

10. The auxiliary breathing device for heart failure patients according to claim 7, characterized in that: The air guide assembly (3) further comprises an insertion regulator (38) for adjusting the insertion depth of the nasal catheter (35), the insertion regulator (38) comprising a screw rod (381) rotatably arranged on one side of the housing seat (31) and a moving block (382) fixedly sleeved on the outside of one end of the limiting tube (32) close to the delivery tube (2), the moving block (382) being screwed onto the screw rod (381) via a thread.

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