Breathing assisting device for heart failure patient

Abstract

The invention discloses a breathing assisting device for a heart failure patient, and relates to the technical field of breathing assisting. The breathing assisting device for the heart failure patient comprises a breathing machine, an oxyhemoglobin saturation probe arranged on a pulse oximeter and an atomizer, the breathing machine comprises a hose and a mask, the atomizer comprises a medicine inlet and an atomizing opening, the side wall of the breathing machine is fixedly connected with a mounting plate, the atomizer is fixed to the mounting plate, and the hose is fixedly connected with the mounting plate. The upper end of the atomization opening is fixedly connected with a medicine supply pipe, the other end of the medicine supply pipe is fixedly inserted into the side wall of the hose, the upper end of the medicine inlet is fixedly connected with a working box, and a medicine supply opening is formed in the side wall of the working box. The breathing assisting device for the heart failure patient is used in the process that a breathing machine assists the patient in breathing, when the heart failure attacks, first-aid medicine can be atomized and then supplied into the body of the patient in time through breathing, and first-aid is more timely, reliable, safer and more reliable.

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 (HF) is a clinical syndrome in which ventricular filling or ejection capacity is impaired due to abnormal cardiac structure or function. Its main clinical manifestations are dyspnea, fatigue (limited activity tolerance) and fluid retention (such as pulmonary congestion or peripheral edema). Patients with heart failure usually need to use a ventilator for respiratory assistance.

[0003] However, the existing breathing assistance devices for patients with heart failure are not safe and reliable enough to provide timely rescue measures for patients when heart failure occurs. Summary of the invention

[0004] The object of the present invention is to provide a breathing assistance device for patients with heart failure to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a respiratory assistance device for patients with heart failure, comprising a ventilator, a blood oxygen saturation probe arranged on a pulse oximeter, and a nebulizer, the ventilator comprising a hose and a mask, and the nebulizer comprising a drug inlet and an atomization port, the side wall of the ventilator is fixedly connected to a mounting plate, and the nebulizer is fixed to the mounting plate, the upper end of the atomization port is fixedly connected to a drug supply pipe, and the other end of the drug supply pipe is fixedly inserted in the side wall of the hose, the upper end of the drug inlet is fixedly connected to a working box, and the side wall of the working box is provided with a drug supply port, and the side wall of the working box is moved by a mobile machine The structure is connected with a sealing plate, and the upper end of the medicine inlet is fixedly connected with a collecting cover, a filter box is inserted into the side wall of the working box, and a plurality of filter holes arranged in an array are provided at the bottom of the filter box, the filter box slides on the top of the collecting cover, and two symmetrically arranged rotating blocks are rotatably connected to the working box through a rotating mechanism, and sockets are provided on the opposite side walls of the two rotating blocks, and the top of the working box is connected with a moving block through a lifting module, a blade is fixedly connected to the side wall of the moving block, and the blade penetrates into the working box, and two symmetrically arranged baffles are fixedly connected to the side wall of the blade, and an on-off mechanism is provided on the side wall of the medicine supply tube.

[0006] Preferably, the rotating mechanism includes two symmetrically arranged fixed plates fixedly connected to the inner side walls of the working box, and each rotating block is rotatably connected to the side walls of the fixed plates through a rotating shaft, the rotation of the rotating shaft is driven by a driving mechanism, and the side walls of each fixed plate are provided with a vibration mechanism for knocking and vibrating the rotating blocks.

[0007] Preferably, the driving mechanism comprises a gear fixedly sleeved on the side wall of the rotating shaft, and the side wall of each fixed plate is connected with a rack through a first reset mechanism, and the rack is meshed with the gear.

[0008] Preferably, the first reset mechanism includes two symmetrically arranged connecting blocks fixedly connected to the side walls of the fixed plate, and the opposite side walls of the two connecting blocks are fixedly connected to two symmetrically arranged guide rods, the side wall of each guide rod is sleeved with a slider, the slider is fixed to the side wall of the rack, and the side wall of each guide rod is sleeved with a first spring.

[0009] Preferably, the vibration mechanism includes a movable plate, and the movable plate is connected to the side wall of the fixed plate through a second reset mechanism, a knocking rod is fixedly connected to the side wall of the movable plate, and the movement of the movable plate is driven by a first pushing mechanism.

[0010] Preferably, the second resetting mechanism includes a first connecting plate fixedly connected to the side wall of the movable plate, and two symmetrically arranged first T-shaped guide rods are inserted into the side wall of the first connecting plate, one end of the first T-shaped guide rod is fixed to the side wall of the fixed plate, and the side wall of each first T-shaped guide rod is sleeved with a second spring.

[0011] Preferably, the first pushing mechanism comprises a plurality of triangular blocks arranged in an array and fixedly connected to the side wall of the movable plate, the side wall of the rack is fixedly connected to the second connecting plate, and the side wall of the second connecting plate is fixedly connected to the pushing rod.

[0012] Preferably, the on-off mechanism includes a fixed cover fixedly inserted on the side wall of the medicine supply tube, and a sliding plate is slidably connected inside the fixed cover, a circular hole is opened on the top of the sliding plate, and a third spring is fixedly connected between the sliding plate and the fixed cover, and the movement of the sliding plate is driven by a second pushing mechanism.

[0013] Preferably, the second pushing mechanism comprises an L-shaped plate fixedly connected to the side wall of the blade, and the lower end of the L-shaped plate is fixedly connected to an inclined plate.

[0014] Preferably, the moving mechanism includes a support plate fixedly connected to the side wall of the working box, and two symmetrically arranged second T-shaped guide rods are inserted on the top of the support plate, the upper end of the second T-shaped guide rod is fixedly connected to a third connecting plate, the third connecting plate is fixed to the bottom of the sealing plate, and the side wall of each second T-shaped guide rod is sleeved with a fourth spring.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This breathing assistance device for patients with heart failure is provided with an on-off mechanism, etc. When in use, the mask is worn on the patient's face, the patient is assisted in breathing by a ventilator, and the blood oxygen saturation probe is clamped on the patient's finger to monitor the patient's blood oxygen saturation, pulse rate and perfusion index. Then, the sealing plate is pushed downward, and at the same time, the fourth spring is compressed. Then, the emergency drug injection is inserted between the jacks through the drug supply port. When the patient has a heart failure attack, the blood oxygen saturation probe will detect an abnormality. At this time, the blade is driven downward by the lifting module. The L-shaped plate moves downward, driving the inclined plate downward, and making the inclined plate abut against the side wall of the sliding plate, thereby pushing the sliding plate to slide into the fixed cover. At the same time, the third spring is compressed, and at this time, the circular hole coincides with the drug supply tube, so that the atomized emergency medicine can enter the hose through the drug supply tube and be atomized during the process of the ventilator assisting the patient's breathing. When used, when heart failure occurs, the emergency medicine can be atomized and then supplied to the patient's body through breathing in time, making the emergency treatment more timely, reliable, safer and reliable; by setting a rotating mechanism and a vibrating mechanism, after the outer packaging of the emergency medicine is broken, when the mounting plate abuts against the top of the rotating block, the two rotating blocks can be pushed to rotate downward along the rotating shaft, and the emergency medicine can be dumped, so that the ampoule bottle can slide into the filter box for collection. At the same time, when the rotating shaft rotates, it drives the gear to rotate synchronously and pushes the rack to move upward. At this time, the slider moves along the guide rod When the rack moves upward, the first spring is deformed. When the rack moves upward, the push rod can be driven to move synchronously through the second connecting plate. When the end of the push rod abuts against the side wall of the triangular block, the movable plate and the knocking rod are pushed to move away from the rotating block. At the same time, the second spring is compressed. When the end of the push rod passes over the triangular block, the movable plate and the knocking rod can move and reset under the action of the second spring. This reciprocating process can be used to knock and vibrate the rotating block, making it easier for the broken ampoule to slide from the socket to the filter box for collection, so as to facilitate the normal insertion of subsequent emergency medicines. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial cross-sectional structural schematic diagram of the working box in the present invention; Figure 3 It is a partial cross-sectional structural schematic diagram of the working box and the fixed cover in the present invention; Figure 4 for Figure 1 A schematic diagram of the enlarged structure at A in the middle; Figure 5 for Figure 2 A schematic diagram of the enlarged structure at B in the middle; Figure 6 for Figure 3 Schematic diagram of the enlarged structure at C in the middle; Figure 7 for Figure 4 Schematic diagram of the enlarged structure at D in the middle; Figure 8 for Figure 6 Schematic diagram of the enlarged structure at E in the middle; Fig. 9 It is a schematic diagram of the overall structure of the blade in the present invention.

[0017] In the figure: 1, ventilator; 101, hose; 102, mask; 2, rotating mechanism; 201, fixed plate; 202, rotating shaft; 3, driving mechanism; 301, gear; 302, rack; 4, first reset mechanism; 401, connecting block; 402, guide rod; 403, slider; 404, first spring; 5, vibration mechanism; 501, moving plate; 502, knocking rod; 6, second reset mechanism; 601, first connecting plate; 602, first T-shaped guide rod; 603, second spring; 7, first pushing mechanism; 701, triangular block; 702, second connecting plate; 703, pushing rod; 8, on-off mechanism; 801, fixed cover; 802, Sliding plate; 803, round hole; 804, third spring; 9, second pushing mechanism; 901, L-shaped plate; 902, inclined plate; 10, moving mechanism; 1001, third connecting plate; 1002, second T-shaped guide rod; 1003, support plate; 1004, fourth spring; 11, blood oxygen saturation probe; 12, nebulizer; 1201, drug inlet; 1202, nebulizer port; 13, working box; 14, drug supply pipe; 15, drug supply port; 16, filter box; 17, filter hole; 18, sealing plate; 19, collecting cover; 20, rotating block; 21, jack; 22, blade; 23, lifting module; 24, moving block; 25, mounting plate; 26, baffle. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-Figure 9The present invention provides a technical solution: a respiratory assistance device for patients with heart failure, comprising a ventilator 1, a blood oxygen saturation probe 11 arranged on a pulse oximeter, and a nebulizer 12, the ventilator 1 comprising a hose 101 and a mask 102, and the nebulizer 12 comprising a drug inlet 1201 and an atomization port 1202, a mounting plate 25 is fixedly connected to the side wall of the ventilator 1, and the nebulizer 12 is fixed to the mounting plate 25, the upper end of the atomization port 1202 is fixedly connected to a drug supply pipe 14, and the other end of the drug supply pipe 14 is fixedly inserted in the side wall of the hose 101, the upper end of the drug inlet 1201 is fixedly connected to a working box 13, and the side wall of the working box 13 is provided with a drug supply port 15, the side wall of the working box 13 is connected to a sealing plate 18 through a moving mechanism 10, and the upper end of the drug inlet 1201 is fixedly connected to a collecting cover 19, the working box 13 A filter box 16 is inserted into the side wall, and a plurality of filter holes 17 arranged in an array are provided at the bottom of the filter box 16. The filter box 16 slides on the top of the collecting cover 19, and two symmetrically arranged rotating blocks 20 are rotatably connected to the working box 13 through the rotating mechanism 2. The opposite side walls of the two rotating blocks 20 are provided with a socket 21, and the top of the working box 13 is connected to a moving block 24 through a lifting module 23. A blade 22 is fixedly connected to the side wall of the moving block 24, and the blade 22 penetrates into the working box 13. Two symmetrically arranged baffles 26 are fixedly connected to the side wall of the blade 22, and an on-off mechanism 8 is provided on the side wall of the drug supply tube 14. It is used in the process of the ventilator 1 assisting the patient's breathing. When heart failure occurs, the emergency medicine can be atomized and supplied to the patient's body in time through breathing, making the emergency treatment more timely, reliable, safer and more reliable.

[0020] The rotating mechanism 2 includes two symmetrically arranged fixed plates 201 fixedly connected to the inner wall of the working box 13, and each rotating block 20 is rotatably connected to the side wall of the fixed plate 201 through a rotating shaft 202. The rotation of the rotating shaft 202 is driven by a driving mechanism 3, and the side wall of each fixed plate 201 is provided with a vibration mechanism 5 for knocking and vibrating the rotating block 20. It is used in the process of the ventilator 1 assisting the patient's breathing. When heart failure occurs, the emergency medicine can be atomized and supplied to the patient's body in time through breathing, making the emergency treatment more timely, reliable, safer and more reliable.

[0021] The driving mechanism 3 includes a gear 301 fixedly mounted on the side wall of the rotating shaft 202, and the side wall of each fixed plate 201 is connected to a rack 302 through a first reset mechanism 4. The rack 302 is meshed with the gear 301. When the rotating shaft 202 rotates, the gear 301 is driven to rotate synchronously and the rack 302 is pushed to move upward.

[0022] The first reset mechanism 4 includes two symmetrically arranged connecting blocks 401 fixedly connected to the side walls of the fixed plate 201, and the opposite side walls of the two connecting blocks 401 are fixedly connected to two symmetrically arranged guide rods 402, and the side wall of each guide rod 402 is sleeved with a slider 403, the slider 403 is fixed to the side wall of the rack 302, and the side wall of each guide rod 402 is sleeved with a first spring 404, which guides and resets the movement of the rack 302.

[0023] The vibration mechanism 5 includes a movable plate 501, and the movable plate 501 is connected to the side wall of the fixed plate 201 through the second reset mechanism 6. The side wall of the movable plate 501 is fixedly connected with a knocking rod 502, and the movement of the movable plate 501 is driven by the first pushing mechanism 7. When the rack 302 moves upward, the movable plate 501 and the knocking rod 502 are reciprocated by the first pushing mechanism 7 and the second reset mechanism 6, so that the rotating block 20 can be reciprocated and vibrated, so that the broken ampoule bottle can slide from the socket 21 to the filter box 16 for collection, so as to facilitate the normal insertion of the subsequent emergency medicine.

[0024] The second reset mechanism 6 includes a first connecting plate 601 fixedly connected to the side wall of the movable plate 501, and two symmetrically arranged first T-shaped guide rods 602 are inserted into the side wall of the first connecting plate 601, one end of the first T-shaped guide rod 602 is fixed to the side wall of the fixed plate 201, and the side wall of each first T-shaped guide rod 602 is sleeved with a second spring 603, which plays a guiding and reset role in the movement of the movable plate 501.

[0025] The first pushing mechanism 7 includes a plurality of triangular blocks 701 arranged in an array and fixedly connected to the side wall of the movable plate 501, the side wall of the rack 302 is fixedly connected to the second connecting plate 702, and the side wall of the second connecting plate 702 is fixedly connected to the pushing rod 703. When the rack 302 moves upward, the pushing rod 703 can be driven to move synchronously through the second connecting plate 702. When the end of the pushing rod 703 abuts against the side wall of the triangular block 701, the movable plate 501 and the knocking rod 502 are pushed to move in a direction away from the rotating block 20.

[0026] The on-off mechanism 8 includes a fixed cover 801 fixedly inserted into the side wall of the medicine supply tube 14, and a sliding plate 802 is slidably connected in the fixed cover 801, a circular hole 803 is opened on the top of the sliding plate 802, and a third spring 804 is fixedly connected between the sliding plate 802 and the fixed cover 801. The movement of the sliding plate 802 is driven by the second pushing mechanism 9. After the outer packaging of the emergency medicine is broken, when the blade 22 continues to move downward, the sliding plate 802 is pushed by the second pushing mechanism 9 to slide into the fixed cover 801. At the same time, the third spring 804 is compressed. At this time, the circular hole 803 coincides with the medicine supply tube 14. At this time, the on-off mechanism 8 is in an on state.

[0027] The second pushing mechanism 9 includes an L-shaped plate 901 fixedly connected to the side wall of the blade 22, and the lower end of the L-shaped plate 901 is fixedly connected to an inclined plate 902. When the blade 22 moves downward, the inclined plate 902 is driven downward by the L-shaped plate 901, and the inclined plate 902 is abutted against the side wall of the sliding plate 802, thereby pushing the sliding plate 802 to slide into the fixed cover 801.

[0028] The moving mechanism 10 includes a support plate 1003 fixedly connected to the side wall of the working box 13, and two symmetrically arranged second T-shaped guide rods 1002 are inserted on the top of the support plate 1003, and the upper end of the second T-shaped guide rod 1002 is fixedly connected to the third connecting plate 1001, and the third connecting plate 1001 is fixed to the bottom of the sealing plate 18, and the side wall of each second T-shaped guide rod 1002 is sleeved with a fourth spring 1004, which plays a guiding and resetting role for the movement of the sealing plate 18.

[0029] Working principle: When in use, the mask 102 is worn on the patient's face, the patient is assisted in breathing by the ventilator 1, and the blood oxygen saturation probe 11 is clamped on the patient's finger to monitor the patient's blood oxygen saturation, pulse rate and perfusion index. Then, the sealing plate 18 is pushed downward, and at the same time, the fourth spring 1004 is compressed, and then the emergency drug injection is inserted between the plug holes 21 through the drug supply port 15; When the patient suffers from heart failure, the blood oxygen saturation probe 11 will detect an abnormality. At this time, the nebulizer 12 is turned on, and the blade 22 is driven downward by the lifting module 23, so that the ampoule of the emergency medicine can be broken and fall into the filter box 16 for filtering. After the outer packaging of the emergency medicine is broken, when the mounting plate 25 abuts against the top of the rotating block 20, the two rotating blocks 20 can be pushed to rotate downward along the rotating shaft 202, and the emergency medicine can be dumped, so that the ampoule can slide into the filter box 16 for collection; At the same time, when the rotating shaft 202 rotates, the gear 301 is driven to rotate synchronously and the rack 302 is pushed to move upward. At this time, the slider 403 moves upward along the guide rod 402, and the first spring 404 is deformed. When the rack 302 moves upward, the push rod 703 can be driven to move synchronously through the second connecting plate 702. When the end of the push rod 703 abuts against the side wall of the triangular block 701, the moving plate 501 and the knocking rod 502 are pushed to move away from the rotating block 20. At the same time, the second spring 603 is compressed. When the end of the push rod 703 passes over the triangular block 701, the moving plate 501 and the knocking rod 502 can move and reset under the action of the second spring 603. In this way, the rotating block 20 can be reciprocated and knocked and vibrated, so that the broken ampoule bottle can slide from the socket 21 to the filter box 16 for collection, so as to facilitate the normal insertion of the subsequent emergency medicine. After the ampoule of the emergency medicine is broken, the medicine enters the collecting cover 19 through the filter hole 17, and enters the nebulizer 12 through the medicine inlet 1201 for atomization. At the same time, when the blade 22 moves downward, the inclined plate 902 is driven to move downward through the L-shaped plate 901, and the inclined plate 902 is abutted against the side wall of the sliding plate 802, thereby pushing the sliding plate 802 to slide into the fixed cover 801. At the same time, the third spring 804 is compressed, and at this time, the circular hole 803 is overlapped with the medicine supply tube 14, so that the atomized emergency medicine can enter the hose 101 through the medicine supply tube 14, and is used in the process of the ventilator 1 assisting the patient's breathing. When heart failure occurs, the emergency medicine can be atomized and supplied to the patient's body in time through breathing, making the emergency treatment more timely, reliable, safer and more reliable; After the first aid is completed, the blade 22 is moved upward and reset through the lifting module 23. When the inclined plate 902 is disengaged from the sliding plate 802, under the action of the third spring 804, the sliding plate 802 moves in a direction away from the fixed cover 801, so that the circular hole 803 and the medicine supply tube 14 are offset. At this time, the sliding plate 802 is used to seal the medicine supply tube 14. When the baffle 26 is gradually disengaged from the rotating block 20, the rack 302 can be moved upward and reset under the action of the first spring 404, thereby driving the gear 301 and the rotating shaft 202 to rotate and reset, and then driving the rotating block 20 to rotate upward and reset to a horizontal state, thereby facilitating the subsequent insertion of first aid drugs into the socket 21.

Claims

1. A breathing assistance device for a patient with heart failure, comprising a ventilator (1), a blood oxygen saturation probe (11) arranged on a pulse oximeter, and a nebulizer (12), wherein the ventilator (1) comprises a hose (101) and a mask (102), and the nebulizer (12) comprises a drug inlet (1201) and an atomization port (1202), characterized in that: The side wall of the respirator (1) is fixedly connected to a mounting plate (25), and the nebulizer (12) is fixed to the mounting plate (25); the upper end of the nebulizer port (1202) is fixedly connected to a drug supply tube (14), and the other end of the drug supply tube (14) is fixedly inserted into the side wall of the hose (101); the upper end of the drug inlet (1201) is fixedly connected to a working box (13), and the side wall of the working box (13) is provided with a drug supply port (15); the side wall of the working box (13) is connected to a sealing plate (18) via a moving mechanism (10), and the upper end of the drug inlet (1201) is fixedly connected to a collecting cover (19); the side wall of the working box (13) is provided with a filter box (16), and the filter box (16) ) is provided with a plurality of filter holes (17) arranged in an array at the bottom, the filter box (16) slides on the top of the collection cover (19), and two symmetrically arranged rotating blocks (20) are rotatably connected in the working box (13) through a rotating mechanism (2), and the two opposite side walls of the rotating blocks (20) are provided with plug holes (21), and the top of the working box (13) is connected to a moving block (24) through a lifting module (23), and the side wall of the moving block (24) is fixedly connected to a blade (22), and the blade (22) penetrates into the working box (13), and the side wall of the blade (22) is fixedly connected to two symmetrically arranged baffles (26), and the side wall of the drug supply tube (14) is provided with an on-off mechanism (8).

2. A breathing assistance device for patients with heart failure according to claim 1, characterized in that: The rotating mechanism (2) comprises two symmetrically arranged fixed plates (201) fixedly connected to the inner side wall of the working box (13), and each rotating block (20) is rotatably connected to the side wall of the fixed plate (201) via a rotating shaft (202), the rotation of the rotating shaft (202) is driven by a driving mechanism (3), and the side wall of each fixed plate (201) is provided with a vibration mechanism (5) for knocking and vibrating the rotating block (20).

3. A breathing assistance device for patients with heart failure according to claim 2, characterized in that: The driving mechanism (3) comprises a gear (301) fixedly sleeved on the side wall of the rotating shaft (202), and the side wall of each fixed plate (201) is connected to a rack (302) via a first reset mechanism (4), and the rack (302) is meshed with the gear (301).

4. A breathing assistance device for patients with heart failure according to claim 3, characterized in that: The first reset mechanism (4) comprises two symmetrically arranged connecting blocks (401) fixedly connected to the side wall of the fixed plate (201), and the opposite side walls of the two connecting blocks (401) are fixedly connected to two symmetrically arranged guide rods (402), the side wall of each guide rod (402) is sleeved with a slider (403), the slider (403) is fixed to the side wall of the rack (302), and the side wall of each guide rod (402) is sleeved with a first spring (404).

5. A breathing assistance device for patients with heart failure according to claim 3, characterized in that: The vibration mechanism (5) comprises a movable plate (501), and the movable plate (501) is connected to the side wall of the fixed plate (201) via a second reset mechanism (6), a knocking rod (502) is fixedly connected to the side wall of the movable plate (501), and the movement of the movable plate (501) is driven by a first driving mechanism (7).

6. A breathing assistance device for patients with heart failure according to claim 5, characterized in that: The second reset mechanism (6) comprises a first connecting plate (601) fixedly connected to the side wall of the movable plate (501), and two symmetrically arranged first T-shaped guide rods (602) are inserted into the side wall of the first connecting plate (601), one end of the first T-shaped guide rod (602) is fixed to the side wall of the fixed plate (201), and the side wall of each first T-shaped guide rod (602) is sleeved with a second spring (603).

7. A breathing assistance device for patients with heart failure according to claim 5, characterized in that: The first pushing mechanism (7) comprises a plurality of triangular blocks (701) arranged in an array and fixedly connected to the side wall of the moving plate (501), the side wall of the rack (302) is fixedly connected to the second connecting plate (702), and the side wall of the second connecting plate (702) is fixedly connected to the pushing rod (703).

8. A breathing assistance device for patients with heart failure according to claim 1, characterized in that: The on-off mechanism (8) comprises a fixed cover (801) fixedly inserted into the side wall of the medicine supply tube (14), and a sliding plate (802) is slidably connected inside the fixed cover (801), a circular hole (803) is opened on the top of the sliding plate (802), and a third spring (804) is fixedly connected between the sliding plate (802) and the fixed cover (801), and the movement of the sliding plate (802) is driven by the second driving mechanism (9).

9. A breathing assistance device for patients with heart failure according to claim 8, characterized in that: The second pushing mechanism (9) comprises an L-shaped plate (901) fixedly connected to the side wall of the blade (22), and the lower end of the L-shaped plate (901) is fixedly connected to an inclined plate (902).

10. A breathing assistance device for patients with heart failure according to claim 1, characterized in that: The moving mechanism (10) comprises a support plate (1003) fixedly connected to the side wall of the working box (13), and two symmetrically arranged second T-shaped guide rods (1002) are inserted on the top of the support plate (1003), and the upper ends of the second T-shaped guide rods (1002) are fixedly connected to a third connecting plate (1001), and the third connecting plate (1001) is fixed to the bottom of the sealing plate (18), and the side walls of each second T-shaped guide rod (1002) are sleeved with a fourth spring (1004).

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