A lung function recovery assisting device

Abstract

The present application relates to the technical field of medical devices, in particular to a lung function recovery auxiliary device, comprising a chest band for limiting the thoracic cage of a patient and a mask for controlling the breathing of the patient, the chest band comprising a band body and a first strip-shaped air bag arranged on the inner wall of the band body in an inflated state, the mask comprising a mask body for sealing the face of the patient at the mouth and nose, a partition plate being arranged in the mask body to divide the inner cavity of the mask body into a mouth cavity and a nose cavity which are independent of each other, a mouth valve and a nose valve being arranged on the mask body respectively, and a mouth valve control unit and a nose valve control unit being arranged on the mask body respectively to control the opening and closing of the mouth valve and the nose valve, the first strip-shaped air bag being communicated with the mouth valve control unit and the nose valve control unit through air pipes one and two respectively. The present application can assist the patient to perform abdominal breathing or pursed-lip breathing by adjusting the tension state of the chest band.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a lung function recovery assistive device. Background Technology

[0002] Currently, after thoracic surgery, patients often experience a relatively low level of lung function. Postoperative patients frequently experience chest tightness and hypoxia. Furthermore, during the recovery phase, patients cannot engage in strenuous exercise to improve lung function indicators and exercise tolerance. They can only gradually rehabilitate their lung function through gentler lung function training. Abdominal breathing and pursed-lip breathing are commonly used training methods for lung function recovery. Abdominal breathing involves keeping the chest cavity still during inhalation and exhalation, using only the expansion and contraction of the abdomen. Pursed-lip breathing involves inhaling through the nose and exhaling by pursing the lips to create expiratory resistance, slowly exhaling the air through the lips. The main purpose of pursed-lip breathing is not to purse the lips but to create expiratory resistance during exhalation to train the lung's contractile ability. When using diaphragmatic breathing and pursed-lip breathing for rehabilitation training, patients need to consciously control and coordinate the movements of their abdomen, chest, nose, and mouth. Some patients cannot coordinate the movements of these parts well, resulting in poor training effects. Existing lung function recovery assistive devices only adjust the resistance during the patient's exhalation and inhalation, making the training method singular and unable to assist patients in performing diaphragmatic breathing and pursed-lip breathing. Summary of the Invention

[0003] The purpose of this invention is to provide a lung function recovery assistive device to solve the problem mentioned in the above-mentioned technical background that existing lung function recovery assistive devices cannot assist patients in performing abdominal breathing and pursed-lip breathing.

[0004] To achieve the above objectives, the basic solution of the present invention is as follows:

[0005] A lung function recovery assistive device includes a chest strap for restricting a patient's chest and a mask for controlling the patient's breathing. The chest strap is worn on the patient's chest via shoulder straps and has an adjustment mechanism for adjusting its tightness. The chest strap includes a strap body and a first strip-shaped air bladder protruding from the inner wall of the strap body and in an inflated state. The mask includes a cover body that seals the patient's face at the mouth and nose and a fixing strap that secures the cover body to the patient's face. A partition is provided inside the cover body. One edge of the partition is sealed and fixedly connected to the inner wall of the cover body, and the other edge of the partition is in close contact with the patient's face so that the partition divides the inner cavity of the cover body into an independent oral cavity and a nasal cavity. The cover body is provided with an oral valve and a nasal valve for controlling the connection / disconnection between the oral cavity and the nasal cavity and the external space of the cover body. The oral valve includes an oral valve body fixedly connected to the cover body and an inlet valve body disposed within the oral valve body that connects the oral cavity to the external space of the cover body. The nasal valve comprises a valve channel one and a mouth valve channel two. A mouth valve control unit is disposed within the mouth valve body to control the opening or closing of the mouth valve channel one. A one-way valve one, allowing only airflow from the mouth cavity, is disposed at the mouth valve channel two. An air-blocking component is disposed within the mouth valve channel two to obstruct airflow from the mouth cavity. The nasal valve includes a nasal valve body fixedly connected to the cover, a nasal valve channel one and a nasal valve channel two connecting the nasal cavity to the external space of the cover. A nasal valve control unit is disposed within the nasal valve body to control the opening or closing of the nasal valve channel one. A one-way valve two, allowing only airflow from the nasal valve channel two to enter the nasal cavity, is disposed at the nasal valve channel two. A first strip-shaped airbag is connected to the mouth valve control unit via an air tube one to inflate the mouth valve control unit with gas, causing the mouth valve control unit to open the mouth valve channel one. A first strip-shaped airbag is connected to the nasal valve control unit via an air tube two to inflate the nasal valve control unit with gas, causing the nasal valve control unit to open the nasal valve channel one.

[0006] In the aforementioned basic scheme, the chest strap is worn on the patient's chest via shoulder straps, and the mask is worn on the patient's face via fixing straps, with the nose and mouth positioned within the nasal cavity. When the chest strap is loosened by adjusting the adjustment mechanism and no longer restricts the patient's chest, the first strip-shaped airbag on the strap body is not compressed, causing trachea one to not inflate the mouth valve control unit, and trachea two to not inflate the nasal valve control unit. At this time, both mouth valve channel one and nasal valve channel one are closed. When the patient inhales, the air outside the mask can only enter the patient's lungs through nasal valve channel two and then through the nasal cavity. When the patient exhales, the air in the lungs can only be expelled through the mouth and then through mouth valve channel two. The air-blocking component in the second oral valve channel obstructs the airflow through the channel, creating expiratory resistance to assist in pursed-lip breathing. When the chest band is tightened by adjusting the adjustment mechanism to restrict the patient's chest, the first strip-shaped airbag on the band body is compressed, causing the tracheal valve control unit to inflate and open the first oral valve channel. This, in turn, causes the tracheal valve control unit to inflate and open the first nasal valve channel. At this time, the patient can breathe freely through the oral and nasal valves. When the patient inhales, the chest band restricts the expansion of the chest, preventing the patient's chest from expanding and allowing inhalation only through abdominal expansion, thus assisting in abdominal breathing.

[0007] Furthermore, the valve control unit includes a valve slide rail arranged radially along the valve channel and intersecting the valve channel, a valve head slide post and a valve tail slide post disposed within the valve slide rail. The inner diameter of the valve slide rail is larger than the inner diameter of the valve channel. The valve head slide post and the valve tail slide post are both slidably and sealingly connected to the valve slide rail. The valve head slide post and the valve tail slide post are fixedly connected by a thin rod with a diameter smaller than that of the valve head slide post. A spring is disposed within the valve slide rail. One end of the spring is fixedly connected to the valve head slide post, and the other end of the spring is fixedly connected to the inner wall of the valve slide rail. Under the elastic force of the spring, the valve head slide post is positioned to block the valve channel. One end of the air tube is sealed and connected to the inner cavity of the first strip-shaped airbag, and the other end of the air tube is connected to the inner cavity of the valve slide rail near the valve tail slide post.

[0008] Furthermore, the nasal valve control unit includes a nasal valve slide rail arranged radially along the nasal valve channel and intersecting with the nasal valve channel, a nasal valve head slide rail and a nasal valve tail slide rail disposed within the nasal valve slide rail. The inner diameter of the nasal valve slide rail is larger than the inner diameter of the nasal valve channel. The nasal valve head slide rail and the nasal valve tail slide rail are both slidably and sealed to the nasal valve slide rail. The nasal valve head slide rail and the nasal valve tail slide rail are fixedly connected by a thin rod II with a diameter smaller than that of the nasal valve head slide rail. A spring II is disposed within the nasal valve slide rail. One end of the spring II is fixedly connected to the nasal valve head slide rail, and the other end of the spring II is fixedly connected to the inner wall of the nasal valve slide rail. Under the elastic force of the spring II, the nasal valve head slide rail is positioned to block the nasal valve channel. One end of the trachea II is sealed and connected to the inner cavity of the first strip-shaped airbag, and the other end of the trachea II is connected to the inner cavity of the nasal valve slide rail near the nasal valve tail slide rail.

[0009] In the above scheme, when the chest strap is tightened by adjusting the adjustment mechanism to bind and restrict the patient's chest, the first strip-shaped airbag on the strap body is compressed. The gas in the first strip-shaped airbag enters the inner cavity of the mouth valve slide near the tail slide column through the trachea one, forcing the mouth valve head slide column compression spring one to slide away from the mouth valve tail slide column, so that the thin rod one is located in the mouth valve channel one. At this time, the mouth valve channel one is open, connecting the external space of the mask body with the mouth cavity, and the patient can breathe freely through the mouth valve channel one. Similarly, the gas in the first strip-shaped airbag enters the inner cavity of the nasal valve slide near the tail slide column through the trachea two, forcing the nasal valve head slide column compression spring two to slide away from the nasal valve tail slide column, so that the thin rod two is located in the nasal valve channel one. At this time, the nasal valve channel one is open, connecting the external space of the mask body with the nasal cavity, and the patient can breathe freely through the nasal valve channel one. When the chest band is in a loose state and does not bind or restrict the patient's chest, the first strip-shaped air bladder on the band body is not compressed, so the mouth valve head slide and the nose valve head slide block the mouth valve passage and the nose valve passage, respectively.

[0010] Furthermore, a groove is provided on the inner wall of the belt body along the length direction of the belt body, and a second strip-shaped airbag is provided in the groove along the length direction of the groove. The second strip-shaped airbag is fixedly connected to the bottom inner wall of the groove, and an air nozzle is provided on the belt body for inflating / deflating the inner cavity of the second strip-shaped airbag.

[0011] When it is desired that the first air bladder be compressed to assist abdominal breathing independently, the air in the second air bladder is released through the nozzle, causing the second air bladder to retract into the groove. When the second air bladder is inflated, extending beyond the groove and closer to the patient's body surface than the first air bladder, if the chest band is tightened by adjusting the adjustment mechanism to restrict the patient's chest, the first air bladder is not compressed, and the first oral valve channel and the first nasal valve channel remain blocked. At this time, the patient can only inhale through abdominal expansion, and the inhaled airflow can only enter the patient's lungs through the second nasal valve channel and then through the nasal cavity. When the patient exhales, the lung air can only be expelled through the mouth and then through the second oral valve channel. The air-blocking component in the second oral valve channel obstructs the airflow flowing through it, creating expiratory resistance, thereby achieving the purpose of simultaneously assisting pursed-lip breathing and abdominal breathing.

[0012] Furthermore, the air-blocking component includes a stud, and the valve body has a screw hole along the radial direction of the second valve passage that mates with the stud. One end of the screw hole communicates with the second valve passage, and the other end communicates with the external space of the valve body. By rotating the stud, the length of the stud extending into the second valve passage is adjusted, thereby adjusting the resistance of the stud to the airflow in the second valve passage, and thus achieving the purpose of adjusting the patient's expiratory resistance.

[0013] Furthermore, the adjustment element includes Velcro.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects:

[0015] 1. When the entire chest strap is in a relaxed state, the parts on the strap body are not under pressure, and the nose can only inhale while the mouth can only exhale, which is obstructed. At this time, pursed-lip breathing can be assisted.

[0016] 2. When the second strip-shaped airbag is not inflated, but only the body of the chest strap is tightened to restrain the patient's chest cavity and prevent the chest cavity from expanding when the patient inhales, the first strip-shaped airbag on the body of the strap is compressed, causing the mouth and nose passages to be fully opened and unobstructed, thus assisting the patient to perform abdominal breathing.

[0017] 3. When the second strip-shaped air bladder in the main body is inflated, causing the strip-shaped air bladder to expand and restrain the patient's chest cavity, thus preventing the first strip-shaped air bladder from being compressed, the patient can only inhale through abdominal expansion, and can only inhale through the nose while exhaling through the mouth is obstructed. At this time, pursed-lip breathing and abdominal breathing can be performed simultaneously to assist.

[0018] 4. This program can assist patients in performing diaphragmatic breathing or pursed-lip breathing independently, and can also assist in performing diaphragmatic breathing and pursed-lip breathing simultaneously. The training methods are diverse and can meet the different training needs of patients. Attached Figure Description

[0019] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.

[0020] In the attached diagram:

[0021] Figure 1 This is a structural schematic diagram of the present invention from the main view direction.

[0022] Figure 2 This is a top view of the schematic diagram of the main body structure.

[0023] Figure 3 This is a schematic diagram of the structure of the main body of the second strip airbag when it is not inflated, from the front view.

[0024] Figure 4 A schematic diagram of the structure of the main body in the front view direction when the second strip airbag is inflated.

[0025] Figure 5 This is a top view of the valve's internal structure when the first strip-shaped airbag is not compressed.

[0026] Figure 6 This is a top-view diagram showing the internal structure of the valve at the opening when the first strip-shaped airbag is compressed.

[0027] Figure 7 This is a top view of the internal structure of the nose valve when the first strip-shaped airbag is not compressed.

[0028] The meanings of the labels in the attached diagram are as follows:

[0029] Chest strap 10, shoulder strap 101, Velcro 102, strap body 103, groove 1031, second strip-shaped airbag 1032, air nozzle 1033, first strip-shaped airbag 104, mask 20, mask body 201, fixing strap 202, partition 203, mouth cavity 204, nasal cavity 205, mouth valve 206, mouth valve body 2061, mouth valve slide 20611, mouth valve head slide 20612, mouth valve tail slide 20613, thin rod 20614, spring 1 20615, Nose valve channel one 2062, Nose valve channel two 2063, Check valve one 20631, Stud 2064, Screw hole 2065, Nose valve 207, Nose valve body 2071, Nose valve slide 20711, Nose valve head slide 20712, Nose valve tail slide 20713, Thin rod two 20714, Spring two 20715, Nose valve channel one 2072, Nose valve channel two 2073, Check valve two 20731, Trachea one 301, Trachea two 302. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0032] This embodiment provides a lung function recovery assistive device, such as... Figures 1-7 As shown, the device includes a chest strap 10 for restricting the patient's chest and a mask 20 for controlling the patient's breathing. The chest strap 10 is worn on the patient's chest via shoulder straps 101. The chest strap 10 is provided with an adjustment element for adjusting the tightness of the chest strap 10. In this embodiment, the adjustment element includes Velcro 102.

[0033] like Figures 1-4 As shown, the chest strap 10 includes a strap body 103 and a first strip-shaped air bladder 104 protruding from the inner wall of the strap body 103 in an inflated state. In this embodiment, the side wall of the strap body 103 facing the patient's body surface is defined as the inner wall of the strap body 103, and the side wall of the strap body 103 away from the patient's body surface is defined as the outer wall of the strap body 103. A groove 1031 is provided on the inner wall of the strap body 103 along the length direction of the strap body 103. A second strip-shaped air bladder 1032 is provided in the groove 1031 along the length direction of the groove 1031. The second strip-shaped air bladder 1032 is fixedly connected to the bottom inner wall of the groove 1031. An air nozzle 1033 is provided on the strap body 103 for inflating / deflating the inner cavity of the second strip-shaped air bladder 1032.

[0034] The mask 20 includes a mask body 201 that seals the patient's face at the mouth and nose, and a fixing strap 202 that secures the mask body 201 to the patient's face by attaching it to the patient's head. The edge of the mask body 201 close to the patient's face is adapted to the contour of the patient's face, and an elastic silicone pad is attached around the edge of the mask body 201 close to the patient's face so that the edge of the mask body 201 can better fit the patient's facial surface.

[0035] like Figure 1As shown, a partition 203 is provided inside the cover 201. One side edge of the partition 203 is sealed and fixedly connected to the inner wall of the cover 201, and the other side edge of the partition 203 is in close contact with the patient's face so that the partition 203 divides the inner cavity of the cover 201 into an independent oral cavity 204 and a nasal cavity 205. An oral valve 206 and a nasal valve 207 are respectively provided on the cover 201 to control the opening / closing of the oral cavity 204 and the nasal cavity 205 with the external space of the cover 201.

[0036] Combination Figure 5As shown, the port valve 206 includes a port valve body 2061 fixedly connected to the cover 201, a port valve channel 2062 and a port valve channel 2063 disposed within the port valve body 2061, communicating the port cavity 204 with the external space of the cover 201. Both port valve channels 2062 and 2063 are circular channels. A port valve control unit is disposed within the port valve body 2061 to control the port valve channel 2062 to be in an open or closed state. The port valve control unit includes a port valve channel 2062 radially disposed along the port valve channel 2062. The valve slide 20611 is a cross-connected valve channel 20611, and a valve head slide 20612 and a valve tail slide 20613 are disposed within the valve slide 20611. Both ends of the valve slide 20611 are closed, and the inner diameter of the valve slide 20611 is larger than the inner diameter of the valve channel 2062. Both the valve head slide 20612 and the valve tail slide 20613 are slidably connected to the valve slide 20611 in a sealed manner. The valve head slide 20612 and the valve tail slide 20613 are connected by a straight section with a diameter smaller than that of the valve head slide 20612. A thin rod 20614 is fixedly connected to the valve body 206. The thin rod 20614, the valve head slide 20612, and the valve tail slide 20613 are coaxially arranged. Both ends of the thin rod 20614 are fixedly connected to the valve head slide 20612 and the valve tail slide 20613, respectively. A spring 20615 is installed inside the valve slide 20611. One end of the spring 20615 is fixedly connected to the valve head slide 20612, and the other end is fixedly connected to the inner wall of the valve slide 20611. An exhaust port 20616 is provided inside the valve slide 20611 where the spring 20615 is located, connecting the inner cavity of the valve slide 20611 with the outer space of the valve body 2061, so that the valve head slide 20612 can slide inside the valve slide 20611. Under the elastic force of the spring 20615, the valve head slide 20612 is located at the position that blocks the valve channel 2062. One end of the air pipe 301 is sealed and connected to the inner cavity of the first strip airbag 104, and the other end of the air pipe 301 is connected to the inner cavity of the valve slide 20611 near the valve tail slide 20613.

[0037] A one-way valve 20631 is provided at the second valve channel 2063, allowing airflow only from the mouth cavity 204 to the external space of the cover 201. An air-blocking component is also provided within the second valve channel 2063 to prevent airflow from the mouth cavity 204. The air-blocking component includes a stud 2064. A screw hole 2065 is provided on the valve body 2061 along the radial direction of the second valve channel 2063, cooperating with the stud 2064. One end of the screw hole 2065 communicates with the second valve channel 2063, and the other end communicates with the external space of the valve body 2061. By rotating the stud 2064, the length of the stud 2064 extending into the second valve channel 2063 is adjusted, thereby adjusting the resistance of the stud 2064 to the airflow in the second valve channel 2063, and thus achieving the purpose of adjusting the patient's expiratory resistance.

[0038] like Figure 7As shown, the nasal valve 207 includes a nasal valve body 2071 fixedly connected to the cover 201, a nasal valve channel one 2072 and a nasal valve channel two 2073 communicating the nasal cavity 205 with the external space of the cover 201. Both nasal valve channel one 2072 and nasal valve channel two 2073 are circular channels. A one-way valve two 20731 is provided at nasal valve channel two 2073, allowing airflow only through nasal valve channel two 2073 into the nasal cavity 205. A nasal valve control unit is provided inside the nasal valve body 2071 to control the nasal valve channel one 2072 to be in an open or closed state. The nasal valve control unit includes a nasal valve control unit along the nasal valve channel one 2072. The nose valve channel 20712 includes a radially arranged nose valve slide 20711 that intersects and communicates with the nose valve channel 2072, a nose valve head slide 20712 and a nose valve tail slide 20713 disposed within the nose valve slide 20711, both ends of the nose valve slide 20711 being closed, and the inner diameter of the nose valve slide 20711 being larger than the inner diameter of the nose valve channel 2072. The nose valve head slide 20712 and the nose valve tail slide 20713 are both slidably and sealingly connected to the nose valve slide 20711. A diameter [missing information - likely a diameter or diameter] is used to connect the nose valve head slide 20712 and the nose valve tail slide 20713. A thin rod 20714, smaller in diameter than the nose valve head slide 20712, is fixedly connected. The thin rod 20714, the nose valve head slide 20712, and the nose valve tail slide 20713 are coaxially arranged. Both ends of the thin rod 20714 are fixedly connected to the nose valve head slide 20712 and the nose valve tail slide 20713, respectively. A spring 20715 is installed inside the nose valve slide channel 20711. One end of the spring 20715 is fixedly connected to the nose valve head slide 20712, and the other end is fixedly connected to the inner wall of the nose valve slide channel 20711. The nasal valve body 2071 is provided with an exhaust hole 20716 that connects the inner cavity of the nasal valve slide 20711 where the second spring 20715 is located with the external space of the oral valve body 2061, so that the nasal valve head slide 20712 can slide within the nasal valve slide 20711. Under the elastic force of the second spring 20715, the nasal valve head slide 20712 is located at the position that blocks the first nasal valve channel 2072. One end of the second air tube 302 is sealed and connected to the inner cavity of the first strip-shaped airbag 104, and the other end of the second air tube 302 is connected to the inner cavity of the nasal valve slide 20711 near the nasal valve tail slide 20713.

[0039] In this embodiment, the chest strap 10 is worn on the patient's chest via the shoulder strap 101, and the face mask 20 is worn on the patient's face via the fixing strap 202, so that the nose is located within the nasal cavity 205 and the mouth is located within the oral cavity 204. Figures 5-7As shown, when the chest strap 10 is loosened by adjusting the Velcro 102 and is not binding or restricting the patient's chest, the first strip-shaped airbag 104 on the strap body 103 is not compressed. Therefore, at this time, the mouth valve head slide 20612 and the nose valve head slide 20712 respectively block the mouth valve channel 1 2062 and the nose valve channel 1 2072, so that both the mouth valve channel 1 2062 and the nose valve channel 1 2072 are in a closed state. At this time, when the patient inhales, the air in the external space of the mask 20 can only enter the patient's lungs through the nose valve channel 2 2073 and then through the nasal cavity. When the patient exhales, the lung air can only be discharged outward through the mouth and then through the mouth valve channel 2 2063. The stud 2064 in the mouth valve channel 2 2063 obstructs the airflow through the mouth valve channel 2 2063, forming expiratory resistance to assist in pursed-lip breathing training.

[0040] When the second strip-shaped airbag 1032 is in a contracted state, and the strap body 103 is tightened by adjusting the Velcro 102 to bind and restrict the patient's chest, the first strip-shaped airbag 104 on the strap body 103 is compressed, such as... Figure 6 As shown, the gas in the first strip-shaped airbag 104 enters the inner cavity of the mouth valve slide 20611 near the mouth valve tail slide 20613 through the trachea 301. This forces the mouth valve head slide 20612 to compress the spring 20615 and slide it away from the mouth valve tail slide 20613, so that the thin rod 20614 is located in the mouth valve channel 2062. At this time, the mouth valve channel 2062 is open, so that the external space of the mask 201 is connected to the mouth cavity 204, and the patient can breathe freely through the mouth valve channel 2062. The gas in the first strip-shaped airbag 104 also enters the inner cavity of the nasal valve slide 20711 near the nasal valve tail slide 20713 through the trachea 202. This forces the nasal valve head slide 20712 to compress the spring 20715 and slide it away from the nasal valve tail slide 20713, so that the thin rod 20714 is located in the nasal valve channel 1 2072. At this time, the nasal valve channel 1 2072 is open, connecting the external space of the cover 201 with the nasal cavity 205. The patient can breathe freely through the nasal valve channel 1 2072. Therefore, the patient can breathe freely through the mouth valve 206 and the nasal valve 207. When the patient inhales, the patient's chest cannot expand due to the restraint of the belt body 103, and can only inhale through abdominal expansion, thus achieving the purpose of assisting in abdominal breathing exercises.

[0041] When air is inflated into the second strip-shaped airbag 1032 through the air nozzle 1033, causing the second strip-shaped airbag 1032 to expand and extend out of the groove 1031 closer to the patient's body surface than the first strip-shaped airbag 104, if the chest strap 10 is tightened by adjusting the Velcro 102 to restrict the patient's chest, the first strip-shaped airbag 104 is not compressed, but the second airbag 1032 is compressed. The mouth valve channel 1 2062 and the nasal valve channel 1 2072 are still blocked. At this time, the patient can only inhale through abdominal expansion, and the inhaled airflow can only enter the patient's lungs through the nasal valve channel 2 2073 and then through the nasal cavity. When the patient exhales, the lung air can only be expelled through the mouth and then through the mouth valve channel 2 2063. The stud 2064 in the mouth valve channel 2 2063 obstructs the airflow through the mouth valve channel 2 2063, forming expiratory resistance, so as to achieve the purpose of simultaneously assisting in pursed-lip breathing and abdominal breathing exercises.

[0042] Compared with the prior art, the present invention has at least the following beneficial effects:

[0043] 1. When the belt body is in a relaxed state, the first strip-shaped air bladder on the belt body is not under pressure, the nose can only inhale while the mouth can only exhale. At this time, assist the patient to perform pursed-lip breathing exercises.

[0044] 2. When the second strip-shaped air bladder is not inflated, but only the body of the chest strap is tightened to restrain the patient's chest cavity and prevent the chest cavity from expanding when the patient inhales, the first strip-shaped air bladder on the body of the strap is compressed, allowing the patient to breathe freely through the mouth and nose. At this time, the patient is assisted to perform abdominal breathing exercises.

[0045] 3. When the second strip of air in the main body is inflated, causing the second strip of air to expand and restrain the patient's chest cavity while preventing the first strip of air from being compressed, the patient can only inhale through abdominal expansion, inhale through the nose, and exhale through the mouth with obstruction. At this time, assist the patient to perform pursed-lip breathing and abdominal breathing exercises simultaneously.

[0046] 4. This program can assist patients in performing diaphragmatic breathing or pursed-lip breathing independently, and can also assist patients in performing diaphragmatic breathing and pursed-lip breathing simultaneously. The training methods are diverse and can meet the different training needs of patients.

[0047] The above are merely embodiments of the present invention, and common knowledge regarding specific structures and characteristics in the solutions is not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A lung function recovery assisting apparatus characterized by comprising: The chest band is worn on the chest of the patient through the shoulder band, and the adjusting part is arranged on the chest band to adjust the tightness of the chest band. The chest band comprises a band body and a first strip-shaped air bag arranged on the inner wall of the band body in the inflated state. The face mask comprises a mask body for sealing the face of the patient around the mouth and nose and a fixing band for fixing the mask body to the face of the patient. The mask body is provided with a partition plate. One side edge of the partition plate is sealingly and fixedly connected with the inner wall of the mask body, and the other side edge of the partition plate is in close contact with the face of the patient to separate the inner cavity of the mask body into a mouth cavity and a nose cavity. The mask body is respectively provided with a mouth valve and a nose valve for controlling the communication state of the mouth cavity and the nose cavity with the outside space of the mask body. The mouth valve comprises a mouth valve body fixedly connected with the mask body, a mouth valve channel one and a mouth valve channel two arranged in the mouth valve body to communicate the mouth cavity with the outside space of the mask body. The mouth valve body is provided with a mouth valve control unit arranged in the mouth valve body to control the opening or closing state of the mouth valve channel one. The mouth valve channel two is provided with a one-way valve one arranged at the mouth valve channel two to allow the gas flow to flow out of the mouth cavity. The mouth valve channel two is provided with a gas blocking part arranged in the mouth valve channel two to block the gas flow out of the mouth cavity. The nose valve comprises a nose valve body fixedly connected with the mask body, a nose valve channel one and a nose valve channel two arranged in the nose valve body to communicate the nose cavity with the outside space of the mask body. The nose valve body is provided with a nose valve control unit arranged in the nose valve body to control the opening or closing state of the nose valve channel one. The nose valve channel two is provided with a one-way valve two arranged at the nose valve channel two to allow the gas flow to flow into the nose cavity. The first strip-shaped air bag is communicated with the mouth valve control unit through a gas pipe one to fill the gas into the mouth valve control unit to make the mouth valve control unit open the mouth valve channel one. The first strip-shaped air bag is communicated with the nose valve control unit through a gas pipe two to fill the gas into the nose valve control unit to make the nose valve control unit open the nose valve channel one.

2. The lung function recovery aid of claim 1, wherein: The mouth valve control unit comprises a mouth valve sliding channel arranged in the radial direction of the mouth valve channel one and cross communicated with the mouth valve channel one, a mouth valve head sliding column and a mouth valve tail sliding column arranged in the mouth valve sliding channel. The inner diameter of the mouth valve sliding channel is larger than the inner diameter of the mouth valve channel one. The mouth valve head sliding column and the mouth valve tail sliding column are sealingly and slidingly connected with the mouth valve sliding channel. The mouth valve head sliding column and the mouth valve tail sliding column are fixedly connected through a thin rod one with a diameter smaller than the diameter of the mouth valve head sliding column. The mouth valve sliding channel is provided with a spring one. One end of the spring one is fixedly connected with the mouth valve head sliding column, and the other end of the spring one is fixedly connected with the inner wall of the mouth valve sliding channel. Under the elastic force of the spring one, the mouth valve head sliding column is located at the position to block the mouth valve channel one. One end of the gas pipe one is sealingly communicated with the inner cavity of the first strip-shaped air bag, and the other end of the gas pipe one is communicated with the inner cavity of the mouth valve sliding channel close to the mouth valve tail sliding column.

3. A lung function recovery aid according to claim 2, wherein: The nose valve control unit comprises a nose valve slide channel arranged along the radial direction of the first nose valve channel and cross-communicating with the first nose valve channel, a nose valve head slide column and a nose valve tail slide column arranged in the nose valve slide channel, the inner diameter of the nose valve slide channel is larger than the inner diameter of the first nose valve channel, the nose valve head slide column and the nose valve tail slide column are in sealing sliding connection with the nose valve slide channel, the nose valve head slide column and the nose valve tail slide column are fixedly connected through a thin rod two with a diameter smaller than that of the nose valve head slide column, a spring two is arranged in the nose valve slide channel, one end of the spring two is fixedly connected with the nose valve head slide column, the other end of the spring two is fixedly connected with the inner wall of the nose valve slide channel, the nose valve head slide column is located at the position of blocking the first nose valve channel under the elastic force of the spring two, one end of the air tube two is in sealing communication with the inner cavity of the first strip-shaped air bag, the other end of the air tube two is in communication with the inner cavity of the nose valve slide channel close to the nose valve tail slide column.

4. A lung function recovery aid according to claim 3, wherein: The inner wall of the belt body is provided with a groove along the length direction of the belt body, a second strip-shaped air bag is arranged in the groove along the length direction of the groove, the second strip-shaped air bag is fixedly connected with the bottom inner wall of the groove, and a gas nozzle for inflating / deflating the inner cavity of the second strip-shaped air bag is arranged on the belt body.

5. A lung function recovery aid according to claim 4, wherein: The air blocking component comprises a threaded stud, a threaded hole matched with the threaded stud is arranged on the mouth valve body along the radial direction of the second mouth valve channel, one end of the threaded hole is in communication with the second mouth valve channel, and the other end of the threaded hole is in communication with the outer space of the mouth valve body.

6. A lung function recovery aid according to claim 5, wherein: The adjusting member comprises a magic tape.

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