Respiratory training device based on active circulation technology

Abstract

The utility model relates to the field of medical instruments, in particular to a breathing training device based on an active circulation technology, which comprises a gas circuit assembly and an electric assembly, the gas circuit assembly is detachably connected with the electric assembly; the gas circuit assembly is provided with a gas circuit channel and a piston component, the motion path of the piston component relative to the gas circuit channel is configured to be a linear motion path, the two ends of the piston component are the head end and the tail end respectively, the head end is inserted into the gas circuit channel and used for changing the resistance of the gas circuit channel, and the tail end is located outside the gas circuit channel; the electric assembly is provided with a motor and a telescopic mechanism, the telescopic mechanism has a contraction state and a relaxation state, and the motor is used for controlling the telescopic mechanism to be converted between the contraction state and the relaxation state; the tail end is in contact with the telescopic mechanism. According to the breathing training device based on the active circulation technology, after a patient uses the breathing training device, a medical worker or the patient can separate the air path assembly from the electric assembly, and the air path assembly can be independently cleaned.

Description

Technical Field

[0001] The utility model relates to the field of medical devices, specifically a breathing trainer based on active cycle technology. Background Technique

[0002] Active cycle of breathing techniques (ACBT; simply referred to as active cycle technology) was first proposed by Pryor in 1979 and defined by Webber in 1990. Active cycle of breathing techniques is one of the important ways of active breathing training, which mainly includes three parts: breathing control, thoracic expansion exercise, and forced expiration technique.

[0003] Breathing control: That is, diaphragmatic breathing mode is used to complete breathing, and the lungs and chest wall are restored to the resting state.

[0004] Thoracic expansion exercise: Focus on deep inhalation during inspiration, actively inhale deeply, and passively exhale while relaxing, which helps the re-expansion of lung tissue;

[0005] Forced expiration technique: After normal inhalation, the glottis remains open, the abdominal and chest muscles are contracted, and a certain pressure is formed in the thoracic cavity through a rapid huffing action, promoting the discharge of more secretions in the low lung volume.

[0006] In actual clinical practice, the pulmonary rehabilitation training process using active cycle of breathing techniques needs to be realized in cooperation with a breathing trainer; the breathing trainer should at least have the function of adjusting the resistance or impedance of the air path.

[0007] In the prior art, there is a patent document with the name of a self-adjusting breathing trainer and the application number of 202211405738.7; in this prior art, a driving component is specifically adopted to control the gap size between the movable valve plug and the inclined side wall in the air control valve sleeve, and the function of automatically changing the breathing impedance (or called resistance) is formed by changing the size of the gap; however, it is not easy to clean this prior art. Among them, the driving rod of the driving component is connected to the movable valve plug. When the movable valve plug cannot be separated from the driving rod or it is difficult to separate, the movable valve plug is restricted between the inclined side walls in the air control valve sleeve, so that it is impossible to clean the movable valve plug by flushing or scrubbing; therefore, the self-adjusting breathing trainer in the above prior art is essentially a disposable medical device and needs to be discarded after being used once.

[0008] From the above prior art, the breathing trainer is made into a disposable product, which will inevitably increase the economic cost of patients' treatment; the essential reason is that the breathing trainer in the prior art is not convenient to clean the air path through which the gas flows.

[0009] Therefore, how to provide a breathing trainer that facilitates the cleaning of the gas passage through which the gas flows has become a technical problem to be solved. Summary of the Utility Model

[0010] To solve the technical problem in the prior art of how to provide a breathing trainer that facilitates the cleaning of the gas passage through which the gas flows, the present utility model provides a breathing trainer based on an active circulation technology.

[0011] To achieve the above object, the technical solution adopted by the present utility model is as follows:

[0012] According to one aspect of the present utility model, there is provided a breathing trainer based on an active circulation technology, including a gas path component and an electric component;

[0013] The gas path component and the electric component are detachably connected;

[0014] The gas path component is provided with a gas path channel and a piston component. Among them, the movement path of the piston component relative to the gas path channel is configured as a linear movement path. The two ends of the piston component are respectively a head end and a tail end. The head end is inserted into the gas path channel, and the head end is used to change the resistance of the gas path channel. The tail end is located outside the gas path channel;

[0015] The electric component is provided with a motor and a telescopic mechanism. The telescopic mechanism has a contracted state and a relaxed state. The motor is used to control the telescopic mechanism to change between the contracted state and the relaxed state;

[0016] The tail end contacts the telescopic mechanism.

[0017] Further, the gas path component includes a first component, a second component, and a third component. The second component is located between the first component and the third component. The first component and the third component are respectively detachably connected to the second component;

[0018] The gas path channel is restricted within the contours of the first component, the second component, and the third component.

[0019] Further, the gas path channel located within the contour of the first component is provided with a buffer cavity and a first linear cavity. The buffer cavity and the first linear cavity are in communication. Among them, the first linear cavity is located on the side of the buffer cavity;

[0020] The gas path component further includes a porous component, which is detachably arranged in the buffer cavity. Wherein, the porous component is provided with a cylindrical wall, and a plurality of through holes are arranged on the wall. Along the direction from the first end to the last end, the plurality of through holes are configured in multiple layers at a preset interval, and the plurality of through holes in any layer are configured on the same circumference;

[0021] The first end is located inside the wall, and the first end forms a clearance fit with the wall;

[0022] The gas path channel located within the contour of the second component is provided with a second straight cavity and a third straight cavity. The second component is provided with a connection port, and the connection port communicates with the third straight cavity. The second straight cavity and the third straight cavity are parallel to each other and isolated from each other;

[0023] The gas path channel located within the contour of the third component is provided with a fourth straight cavity, a first port and a second port. The opening directions of the first port and the second port are the same and are respectively perpendicular to the extending direction of the fourth straight cavity;

[0024] The first straight cavity communicates with the second straight cavity. The second straight cavity communicates with the fourth straight cavity through the first port. The fourth straight cavity communicates with the third straight cavity through the second port.

[0025] Further, the second component is provided with a reset cavity, and a spiral spring is arranged in the reset cavity;

[0026] The piston component is provided with a limit disk, and the limit disk and the piston component are integrally formed or detachably connected in a coaxial state. The limit disk is restricted in the reset cavity;

[0027] The limit disk has a first surface facing the telescopic mechanism and a second surface facing away from the telescopic mechanism. The spiral spring is sleeved on the piston component located on the second surface.

[0028] Further, the gas path component is provided with an impeller component, which is rotatably sleeved on the piston component. Wherein, a plurality of blades of the impeller component are located in the gas path channel, and the rotating shaft of the impeller component extends from the inside of the gas path channel to the outside;

[0029] The electric component further includes a first gear set, a speed encoder, an indicator light, a housing and a base;

[0030] The base covers the housing, and a receiving cavity is formed between the base and the housing. The first gear set and the speed encoder are respectively arranged in the receiving cavity, and the indicator light is arranged on the housing;

[0031] The housing is provided with a guiding through hole for the piston component and the impeller component to be inserted into;

[0032] The first gear set includes a driving gear and a detecting gear. Wherein, a part of the driving gear extends into the contour of the guiding through hole, and the impeller component inserted into the housing is provided with a gear portion, the gear portion meshes with the driving gear, the driving gear meshes with the detecting gear, and the rotating shaft of the speed encoder is coaxially arranged with the detecting gear;

[0033] The output information of the speed encoder is used to turn on the indicating lamp.

[0034] Furthermore, the telescopic mechanism includes a sleeve and a lead screw, the inner wall of the sleeve is provided with internal threads, and the external threads of the lead screw are connected to the internal threads;

[0035] The motor is used to drive the lead screw to rotate.

[0036] Furthermore, the electric component further includes a guiding column;

[0037] The outer wall of the sleeve is provided with a guiding block, the guiding column is provided with a guiding groove, and the guiding block and the guiding groove are in sliding fit. Wherein, the sliding direction of the guiding block relative to the guiding groove is parallel to the movement path of the piston component relative to the air passage.

[0038] Furthermore, the electric component further includes a driving gear and a driven gear;

[0039] The driving gear is coaxially connected to the motor shaft of the motor, the driven gear is coaxially connected to the lead screw, and the driving gear and the driven gear mesh with each other.

[0040] Furthermore, the electric component further includes a control circuit board, a control switch and a horn;

[0041] The motor, the horn and the control switch are respectively electrically connected to the control circuit board.

[0042] The above technical solution has the following advantages or beneficial effects:

[0043] For the breathing trainer based on the active circulation technology provided by the present utility model, after the patient uses it, the medical staff or the patient can separate the air passage component from the electric component, so that the air passage component can be cleaned separately. Description of the Drawings

[0044] Figure 1 It is a schematic structural diagram of the breathing trainer based on the active circulation technology provided by the embodiment of the present utility model;

[0045] Figure 2 A cross-sectional view of the breathing trainer based on the active cycle technology provided by the embodiment of the present utility model;

[0046] Figure 3 A cross-sectional view of the air path component provided by the embodiment of the present utility model;

[0047] Figure 4 A cross-sectional view of the electric component provided by the embodiment of the present utility model;

[0048] Figure 5 A schematic structural diagram of a part of the electric component provided by the embodiment of the present utility model;

[0049] Figure 6 A schematic structural diagram of a part of the electric component provided by the embodiment of the present utility model;

[0050] Figure 7 An electrical connection diagram of the breathing trainer based on the active cycle technology provided by the embodiment of the present utility model. Specific implementation manners

[0051] Embodiment 1:

[0052] In this embodiment, referring to Figure 1 、 Figure 2 , a breathing trainer based on the active cycle technology, an air path component 1 and an electric component 2 are provided;

[0053] The air path component 1 is provided with an air path channel 10 and a piston component 11. Among them, the movement path of the piston component 11 relative to the air path channel 10 is configured as a linear movement path. The two ends of the piston component 11 are respectively a head end 111 and a tail end 112. The head end 111 is inserted into the air path channel 10, and the head end 111 is used to change the resistance of the air path channel 10, and the tail end 112 is located outside the air path channel 10;

[0054] The electric component 2 is provided with a motor 21 and a telescopic mechanism 22. The telescopic mechanism 22 has a contracted state and a relaxed state. The motor 21 is used to control the telescopic mechanism 22 to change between the contracted state and the relaxed state;

[0055] The tail end 112 contacts the telescopic mechanism 22.

[0056] In this embodiment, all the components of the air path component 1 are made of corrosion-resistant materials suitable for medical scenarios, including but not limited to medical rigid plastic materials, etc.; all the components of the air path component 1 at least include the proposed piston component 11; in addition, other components such as the spiral spring proposed in the following content are also included.

[0057] In this embodiment, the first end 111 of the piston component 11 is inserted into the gas path channel 10 to adjust the resistance of the gas path channel 10. The larger the volume or area of the first end 111 of the piston component 11 inserted into the gas path channel 10, the larger the area of the gas path channel 10 blocked, resulting in a greater resistance of the gas path channel 10. Conversely, the smaller the volume or area of the first end 111 of the piston component 11 inserted into the gas path channel 10, the smaller the area of the gas path channel 10 blocked, resulting in a smaller resistance of the gas path channel 10.

[0058] The electric component 2 is used to control the movement of the piston component 11 relative to the gas path channel 10. Specifically, when the motor 21 drives the telescopic mechanism 22 to change from the contracted state to the expanded state, the piston component 11 is pushed by the telescopic mechanism 22 to make a linear motion along the direction from the electric component 2 to the gas path component 1. In the following content, the piston component 11 is also controlled by a spiral spring to make a linear motion along the direction from the gas path component 1 to the electric component 2, which will not be mentioned here for the time being.

[0059] The gas path component 1 and the electric component 2 are configured to be detachably connected. Among them, the connection structure between the gas path component 1 and the electric component 2 can adopt various connection structures in the prior art, such as bolt connection, snap connection, screw connection, etc.

[0060] In this embodiment, the second end 112 of the piston component 11 is located outside the gas path channel 10, and the second end 112 of the piston component 11 is inserted into the contour of the electric component 2, so that the second end 112 of the piston component 11 can contact the telescopic mechanism 22 of the electric component 2. Among them, the second end 112 of the piston component 11 only contacts the telescopic mechanism 22, but no connection structure is formed between the second end 112 of the piston component 11 and the telescopic mechanism 22. Thus, when the gas path component 1 and the electric component 2 are separated from each other, the piston component 11 and the telescopic mechanism 22 can be separated from each other.

[0061] In the prior art (a patent document with the name of a self-adjusting breathing trainer and the application number of 202211405738.7), since the driving rod of the driving component is connected to the movable valve plug, in the case where the movable valve plug cannot be separated from the driving rod or the separation is difficult, the movable valve plug is restricted between the inclined side walls of the air control valve sleeve, so that the movable valve plug cannot be cleaned by flushing or scrubbing.

[0062] The breathing trainer based on the active cycle technology provided in this embodiment allows medical staff or patients to separate the gas path component 1 from the electric component 2 after the patient uses it, enabling the gas path component 1 to be cleaned separately. Among them, there are no electronic components inside the gas path channel 10, allowing the gas path component 1 itself to be cleaned by flushing with water. Alternatively, the gas path component 1 can be disassembled into parts, and all parts of the gas path component 1 can be immersed in a cleaning solution or wiped with a cleaning solution, and then assembled after cleaning.

[0063] Based on the fact that the gas path component 1 can be cleaned independently, the breathing trainer based on the active cycle technology in this embodiment actually becomes a reusable medical device. From the perspective of medical institutions such as hospitals, using the breathing trainer based on the active cycle technology in this embodiment can limit the reduction of economic costs compared to disposable medical devices.

[0064] See Figure 2 or Figure 3 For the breathing trainer based on the active cycle technology in this embodiment, the gas path component 1 includes a first component 12, a second component 13, and a third component 14. The second component 13 is located between the first component 12 and the third component 14, and the first component 12 and the third component 14 are detachably connected to the second component 13 respectively.

[0065] The gas path channel 10 is restricted within the contours of the first component 12, the second component 13, and the third component 14.

[0066] Among them, the connection structure between the first component 12 and the second component 13, and the connection structure between the third component 14 and the second component 13 can adopt connection structures in the prior art, such as screw connection, snap connection, or threaded connection, etc. It should be understood that if screw connection is adopted, screws made of hard plastic should be used.

[0067] Configuring the first component 12, the second component 13, and the third component 14 to be detachably connected is for the purpose of facilitating the installation of the piston component 11 and other parts. In addition, it is convenient to clean the parts after disassembling the first component 12, the second component 13, and the third component 14.

[0068] Specifically, see Figure 2 or Figure 3 For the breathing trainer based on the active cycle technology in this embodiment, a buffer chamber 101 and a first linear chamber 102 are provided in the gas path channel 10 within the contour of the first component 12. The buffer chamber 101 and the first linear chamber 102 are connected, and among them, the first linear chamber 102 is located on the side of the buffer chamber 101.

[0069] The gas path component 1 further includes a porous component 15, which is detachably arranged in the buffer cavity 101. The porous component 15 is provided with a cylindrical wall, and a plurality of through holes are arranged on the wall. Along the direction from the first end 111 to the second end 112, the plurality of through holes are configured in multiple layers at a preset interval, and the plurality of through holes in any layer are configured on the same circumference;

[0070] The first end 111 is located inside the wall, and the first end 111 and the wall form a clearance fit;

[0071] The gas path 10 located within the contour of the second component 13 is provided with a second straight cavity 103 and a third straight cavity 104. The second component 13 is provided with a connection port 16, and the connection port 16 communicates with the third straight cavity 104. The second straight cavity 103 and the third straight cavity 104 are parallel to each other and isolated from each other;

[0072] The gas path 10 located within the contour of the third component 14 is provided with a fourth straight cavity 105, a first orifice 106, and a second orifice 107. The opening directions of the first orifice 106 and the second orifice 107 are the same and are respectively perpendicular to the extending direction of the fourth straight cavity 105;

[0073] The first straight cavity 102 communicates with the second straight cavity 103. The second straight cavity 103 communicates with the fourth straight cavity 105 through the first orifice 106. The fourth straight cavity 105 communicates with the third straight cavity 104 through the second orifice 107.

[0074] Among them, the gas path 10 is at least composed of the above-mentioned buffer cavity 101, first straight cavity 102, second straight cavity 103, and third straight cavity 104;

[0075] If the current breathing training mode is selected by the patient as the inhalation training mode, then the buffer cavity 101 located on the first component 12 is the gas inlet, and the connection port 16 located on the second component 13 is the outlet; in actual use, the connection port 16 is used to connect one end of the hose 01, and the other end of the hose 01 is connected with a mouthpiece 02, and the mouthpiece 02 is used to be held by the patient to make breathing movements;

[0076] In the inspiration training mode, the patient makes an inspiration action, causing a negative pressure to be formed in the air passage 10 (specifically in the first straight chamber 102, the second straight chamber 103, the third straight chamber 104, and the fourth straight chamber 105). When there is a negative pressure in the air passage 10, air flows from the buffer chamber 101 into the first straight chamber 102; among them, the porous component 15 located in the buffer chamber 101 cooperates with the piston component 11 to change the resistance of the air passage 10; the more the through holes of the porous component 15 shielded by the piston component 11, the greater the resistance of the air passage 10, and vice versa, the fewer the through holes of the porous component 15 shielded by the piston component 11, the smaller the resistance of the air passage 10; driven by the telescopic mechanism 22, the piston component 11 moves in a step-by-step manner, so that after each movement of the piston component 11, the front end 111 of the piston component 11 can respectively shield more through holes;

[0077] In the inspiration training mode, the gas in the first straight chamber 102 flows along the second straight chamber 103, the first orifice 106, the fourth straight chamber 105, the second orifice 107, and the third straight chamber 104 to the connection port 16 and is discharged from the connection port 16.

[0078] The air passage 10 as a whole is arranged in a zigzag shape, the purpose of which is to reduce the gap between the air passage 10 and the piston component 11, so that most of the air flow flows along the direction of the air passage 10; it should be understood that in order to facilitate the displacement of the piston component 11, no sealing rings are respectively provided in the gaps between the piston component 11 and the first component 12, the second component 13, and the third component 14 to reduce the friction force of the piston component 11 relative to the first component 12, the second component 13, and the third component 14.

[0079] If the current breathing training mode is selected by the patient as the expiration training mode, then the buffer chamber 101 located on the first component 12 is the outlet of the gas, and the connection port 16 located on the second component 13 is the inlet; among them, the gas flow direction is along the direction from the connection port 16 to the buffer chamber 101, and the effects produced by the remaining structures are respectively the same as or similar to those produced in the aforementioned inspiration training mode, which will not be elaborated here.

[0080] Further, referring to Figure 3 , for the breathing trainer based on the active cycle technology of this embodiment, the second component 13 is provided with a reset cavity 131, and a spiral spring 17 is arranged in the reset cavity 131;

[0081] The piston component 11 is provided with a limit disk 18, the limit disk 18 and the piston component 11 are integrally formed or detachably connected in a coaxial state, and the limit disk 18 is restricted in the reset cavity 131;

[0082] The limiting disk 18 has a first side facing the telescopic mechanism 22 and a second side facing away from the telescopic mechanism 22. The helical spring 17 is sleeved on the piston member 11 located on the second side.

[0083] The telescopic mechanism 22 and the piston member 11 are in contact with each other, but there is no connecting structure between them. When the telescopic mechanism 22 changes from the contracted state with the minimum length to the expanded state with the maximum length, the telescopic mechanism 22 can push the piston to move in the direction approaching the buffer chamber 101. However, when the telescopic mechanism 22 changes from the expanded state with the maximum length to the contracted state with the minimum length, the telescopic mechanism 22 cannot push the piston to move in the direction away from the buffer chamber 101.

[0084] In this embodiment, a helical spring 17 is arranged in the reset cavity 131 of the second component 13. The helical spring 17 is sleeved on the piston member 11, and its function is to force the piston to have a movement tendency to approach the electric component 2 and move away from the gas path component 1. Correspondingly, one end of the helical spring 17 contacts the first component 12, and the other end of the helical spring 17 contacts the limiting disk 18 arranged on the piston member 11, wherein the limiting disk 18 is accommodated in the reset cavity 131.

[0085] When the telescopic mechanism 22 changes from the contracted state to the expanded state and the piston member 11 moves to approach the electric component 2 and move away from the gas path component 1, the piston member 11 and the limiting disk 18 move in the direction approaching the buffer chamber 101 at the same time. At this time, the limiting disk 18 and the first component 12 force the helical spring 17 to compress and absorb energy. On the contrary, when the telescopic mechanism 22 changes from the expanded state to the contracted state, the helical spring 17 releases energy, so that the piston member 11 and the limiting disk 18 move in the direction away from the buffer chamber 101 at the same time.

[0086] Further, referring to Figures 1 to 4 、 Figure 6 、 Figure 7 , in the breathing trainer based on the active cycle technology of this embodiment, the gas path component 1 is provided with an impeller component 19. The impeller component 19 is rotatably sleeved on the piston member 11. Among them, a plurality of blades of the impeller component 19 are located in the gas path 10, and the rotating shaft of the impeller component 19 extends from the inside of the gas path 10 to the outside.

[0087] The electric component 2 further includes a first gear set 23, a speed encoder 24, an indicator light 25, a housing 26 and a base 27.

[0088] The base 27 covers the housing 26. A receiving cavity is formed between the base 27 and the housing 26. The first gear set 23 and the speed encoder 24 are respectively arranged in the receiving cavity, and the indicator light 25 is arranged on the housing 26.

[0089] The housing 26 is provided with a guiding through-hole 28 for the piston member 11 and the impeller member 19 to be inserted into;

[0090] The first gear set 23 includes a driving gear 231 and a detection gear 232. Among them, a part of the driving gear 231 extends into the contour of the guiding through-hole 28. The impeller member 19 inserted into the housing 26 is provided with a gear portion 191. The gear portion 191 meshes with the driving gear 231, the driving gear 231 meshes with the detection gear 232, and the rotating shaft of the speed encoder 24 is coaxially arranged with the detection gear 232;

[0091] The output information of the speed encoder 24 is used to turn on the indicator light 25.

[0092] Among them, when the patient performs breathing training, the airflow in the air passage 10 drives the impeller member 19 to rotate, so that the impeller member 19 drives the first gear set 23 to rotate, and thus the speed encoder 24 can obtain the rotation speed of the impeller member 19;

[0093] The rotation speed of the impeller member 19 obtained by the speed encoder 24 is used to control the turning on or off of the indicator light 25. The output information of the encoder 24 is the rotation speed of the impeller member 19; for example, if the current rotation speed of the impeller member 19 meets the rotation speed threshold, the power supply circuit of the indicator light 25 is turned on. After the indicator light 25 is turned on, it emits light to prompt the patient that the current breathing training is qualified; on the contrary, if the current rotation speed of the impeller member 19 does not meet the rotation speed threshold, the power supply circuit of the indicator light 25 is cut off, and the indicator light 25 does not emit light, which is used to prompt the patient that the current breathing training is unqualified.

[0094] The driving gear 231 of the first gear set 23 can be arranged on the housing 26. For example, a positioning shaft is arranged on the housing 26, and the driving gear 231 can be arranged on the positioning shaft through a bearing; the detection gear 232 of the first gear set 23 is coaxially connected to the rotating shaft of the speed encoder 24, and the housing of the speed encoder 24 can be fixed on the housing 26.

[0095] It should be understood that the rotational speed threshold mentioned throughout this embodiment is actually a set of multiple rotational speed values, which specifically includes an upper limit value of the rotational speed, a lower limit value of the rotational speed, and intermediate values of multiple rotational speeds; the rotational speed - flow threshold mentioned throughout this embodiment is actually a set of multiple rotational speed values and multiple flow values, which has an upper limit value of the rotational speed, an 'upper limit value of the flow' corresponding to the 'upper limit value of the rotational speed', a lower limit value of the rotational speed, a 'lower limit value of the flow' corresponding to the 'lower limit value of the rotational speed', multiple intermediate values of the rotational speed, and an 'intermediate value of the flow' corresponding to any one of the 'intermediate values of the rotational speed'; when actually producing the breathing trainer based on the active cycle technology of this embodiment, the above - mentioned rotational speed threshold or the above - mentioned rotational speed - flow threshold can be obtained through measurement techniques.

[0096] Further, referring to Figure 4 、 Figure 5 In the breathing trainer based on the active cycle technology of this embodiment, the telescopic mechanism 22 includes a sleeve 221 and a lead screw 222. The inner wall of the sleeve 221 is provided with an internal thread, and the external thread of the lead screw 222 is connected to the internal thread;

[0097] The motor 21 is used to drive the lead screw 222 to rotate.

[0098] Among them, the structure composed of the sleeve 221 and the lead screw 222 is common knowledge known to those skilled in the art; in this embodiment, the lead screw 222 is rotatably arranged on the base 27 through a bearing. When the lead screw 222 rotates under the drive of the motor 21, the lead screw 222 maintains a rotating state relative to the base 27 and the housing 26, but the lead screw 222 does not generate displacement along its axial direction relative to the base 27 and the housing 26; while the sleeve 221 generates displacement relative to the base 27 and the housing 26 under the drive of the lead screw 222;

[0099] When the length of the combined structure of the lead screw 222 and the sleeve 221 is the smallest, the telescopic mechanism 22 is in a contracted state. On the contrary, when the length of the combined structure of the lead screw 222 and the sleeve 221 is the longest, the telescopic mechanism 22 is in a diastolic state.

[0100] Further, in order to reduce the overall length of the motor 21 and the telescopic mechanism 22, the motor 21 is arranged on the side of the telescopic mechanism 22. Thus, how to transmit power between the motor 21 and the telescopic mechanism 22 becomes a problem to be solved.

[0101] Referring to Figure 4 or Figure 5 In the breathing trainer based on the active cycle technology of this embodiment, the electric component 2 further includes a driving gear 29 and a driven gear 30;

[0102] The driving gear 29 and the driven gear 30 are respectively arranged on the base 27;

[0103] The driving gear 29 is coaxially connected to the motor shaft of the motor 21, the driven gear 30 is coaxially connected to the lead screw 222, and the driving gear 29 and the driven gear 30 mesh with each other.

[0104] The motor 21 drives the driving gear 29 to rotate, so that the driving gear 29 drives the driven gear 30 to rotate, and then the driven gear 30 drives the lead screw to rotate.

[0105] Furthermore, to avoid the synchronous rotation of the sleeve 221 and the lead screw, the following solution is adopted.

[0106] See Figure 4 or Figure 5 , in the breathing trainer based on the active cycle technology of this embodiment, the electric component 2 further includes a guide post 31;

[0107] The guide post 31 is fixedly arranged on the base 27;

[0108] A guide block 223 is arranged on the outer cylindrical wall of the sleeve 221, a guide groove is arranged on the guide post 31, and the guide block 223 and the guide groove are in sliding fit. Among them, the sliding direction of the guide block 223 relative to the guide groove is parallel to the movement path of the piston member 11 relative to the gas path 10.

[0109] Before the guide post 31 and the guide block 223 are not arranged, the phenomenon of synchronous rotation of the sleeve 221 and the lead screw 222 may occur. In fact, when the frictional force between the sleeve 221 and the lead screw 222 drives the sleeve 221 to rotate, the sleeve 221 does not rotate relative to the lead screw 222, but the sleeve 221 and the lead screw 222 as a whole rotate relative to the base 27;

[0110] Therefore, in this embodiment, a sliding pair composed of the guide block 223 and the guide groove is adopted. When the lead screw 222 rotates relative to the base 27, the guide block 223 on the sleeve 221 is blocked by the guide post 31, so that the sleeve 221 cannot rotate relative to the base 27. Thus, driven by the lead screw 222, the sleeve 221 can only make a displacement relative to the base 27, and the direction of the displacement is parallel to the extension direction of the sliding pair composed of the guide block 223 and the guide groove, that is, parallel to the linear movement path of the aforementioned piston member 11.

[0111] Furthermore, see Figure 1 , Figure 4 or Figure 7 , in the breathing trainer based on the active cycle technology of this embodiment, the electric component 2 further includes a control circuit board 32, a control switch 33 and a speaker 34;

[0112] The motor, the speaker 34 and the control switch are respectively electrically connected to the control circuit board.

[0113] Among them, the aforementioned motor 21, speed encoder 24, and indicator light 25 are electrically connected to the control circuit board 32 respectively.

[0114] A controller is provided on the control circuit board 32. The controller preferably uses a single-chip microcomputer. The controller receives the rotational speed information fed back by the speed encoder 24, and compares the rotational speed information with the rotational speed threshold value in the memory (internal or external memory of the single-chip microcomputer), or the rotational speed-flow threshold value. If the current rotational speed information meets the rotational speed threshold value or the rotational speed-flow threshold value, then the controller turns on the power supply circuit of the indicator light 25, so that the indicator light 25 is powered on and emits light.

[0115] The control switch 33 is used to control the start and stop of the motor 21. Specifically, the control switch 33 is used to send an instruction to the controller. The controller turns on the power supply circuit of the motor 21 according to the received instruction. At the same time, the controller starts a timer.

[0116] When the timer meets the preset time threshold value, the timer terminates. Thus, after the controller detects the information that the timer terminates, the controller terminates turning on the power supply circuit of the motor 21. Among them, the time threshold value is stored in the aforementioned memory. The telescopic length of the telescopic mechanism 22 can be controlled by the rotational speed of the motor 21 and the rotation time (time threshold value) of the motor 21, so that the piston member 11 can form a stepped linear motion.

[0117] It should be understood that the rotational speed of the motor 21 is controlled by changing the current, voltage, or frequency, which is common knowledge known to those skilled in the art and will not be elaborated here.

[0118] When a patient actually uses the breathing trainer based on the active cycle technology in this embodiment for pulmonary rehabilitation training based on the active cycle breathing technique, from the perspective of the patient, the patient needs to sequentially perform breathing control actions, thoracic expansion movements 3 - 5 times, breathing control actions, and forced exhalation actions.

[0119] Corresponding to the above actions made by the patient: The breathing trainer based on the active cycle technology in this embodiment needs to emit a first prompt voice for prompting the patient to perform breathing control actions, a second prompt voice for performing thoracic expansion movements, and a third prompt voice for performing forced exhalation actions through the speaker 34.

[0120] Specifically, after the breathing trainer based on the active cycle technology in this embodiment is started, medical staff or patients can adjust the training mode of the breathing trainer based on the active cycle technology to the active cycle breathing mode. Among them, an adjustment button can be set on the breathing trainer based on the active cycle technology in this embodiment, and the program stored in the memory is used to determine whether the currently selected training mode is the active cycle breathing mode, and a prompt voice indicating that the judgment result is the active cycle breathing mode is sent to the outside.

[0121] After the breathing trainer based on the active cycle technology in this embodiment is selected as the active cycle breathing mode, the controller emits the aforementioned first prompt voice, so that the patient makes corresponding breathing control actions after hearing the first prompt voice.

[0122] At the same time as the controller emits the first prompt voice, the controller triggers a timer. When the timing time of the timer meets the first preset time, the controller emits a second prompt voice. After the patient hears the second prompt voice, the patient makes a corresponding chest expansion movement.

[0123] When the controller emits the second prompt voice, the controller triggers the timer again. When the timing time of the timer meets the second preset time, the controller emits a prompt voice to stop training. After the patient hears the prompt voice to stop training, the patient pauses making the chest expansion movement.

[0124] When the controller emits the second prompt voice, the controller also triggers a counter. When the controller emits the prompt voice to stop training, the counter counts once. At the same time, the controller triggers the timer. When the timer meets the third preset time, the controller emits the second prompt voice again.

[0125] Repeat the above steps until the number of times of the counter meets 3 times or 4 times or 5 times, and when the above number of times is met, the controller terminates emitting the second prompt voice. Correspondingly, the patient terminates making the chest expansion movement.

[0126] When the counter meets the above number of times, the controller emits the first prompt voice for the second time. After the patient hears the first prompt voice, the patient makes corresponding breathing control actions.

[0127] When the controller emits the first prompt voice for the second time, the controller triggers the timer. When the timing time of the timer meets the fourth preset time, the timer terminates.

[0128] When the timer terminates according to the fourth preset time, the controller emits a third prompt voice. After the patient hears the third prompt voice, the patient makes a forceful exhalation action.

[0129] When the controller emits the third prompt voice, the controller obtains the rotational speed information of the impeller component through the speed encoder, and compares the rotational speed information of the impeller component with the rotational speed threshold or with the rotational speed - flow threshold. If the rotational speed information of the impeller component meets the rotational speed threshold or the rotational speed - flow threshold, the controller emits a judgment prompt voice and conducts the power supply circuit of the indicator light, so that the patient can observe that the indicator light is lit and hear the corresponding content such as passing the training in the judgment prompt voice; conversely, if the rotational speed information of the impeller component does not meet the rotational speed threshold or the rotational speed - flow threshold, the controller emits a judgment prompt voice but does not conduct the power supply circuit of the indicator light, so that the patient can observe that the indicator light is not lit and hear the corresponding content such as failing the training in the judgment prompt voice;

[0130] Under the condition that the controller emits a judgment prompt voice and conducts the power supply circuit of the indicator light, wait to receive a signal from the control switch; when the medical staff or the patient hears the judgment prompt voice indicating passing the training and / or sees the indicator light lit, the medical staff or the patient makes an action of pressing the control switch;

[0131] When receiving the signal from the control switch, the controller adjusts the position of the piston component relative to the porous component through the motor and the telescopic mechanism, thereby changing the resistance of the gas path channel; then, repeat all the above actions of the active breathing training until the resistance of the gas path channel is adjusted to the maximum resistance by the impeller component and the active breathing training actions are completed under the maximum resistance. At this time, the active breathing training is completed, and the medical staff or the patient can reset the breathing trainer based on the active cycle technology of this embodiment;

[0132] Conversely, under the condition that the controller emits a judgment prompt voice but does not conduct the power supply circuit of the indicator light, the controller emits the third prompt voice again; after the patient hears the third prompt voice again, the patient makes a forced exhalation action again; until the controller emits a judgment prompt voice and conducts the power supply circuit of the indicator light, the patient terminates the forced exhalation action.

[0133] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A breathing trainer based on active cycle technology, characterized in that, It includes a gas circuit component and an electric component; The gas circuit component and the electric component are detachably connected; The gas circuit component is provided with a gas circuit channel and a piston component. Among them, the movement path of the piston component relative to the gas circuit channel is configured as a linear movement path. The two ends of the piston component are respectively a first end and a second end. The first end is inserted into the gas circuit channel, and the first end is used to change the resistance of the gas circuit channel. The second end is located outside the gas circuit channel; The electric component is provided with a motor and a telescopic mechanism. The telescopic mechanism has a contracted state and a relaxed state. The motor is used to control the telescopic mechanism to change between the contracted state and the relaxed state; The second end contacts the telescopic mechanism; The gas circuit component includes a first component, a second component and a third component. The second component is located between the first component and the third component. The first component and the third component are respectively detachably connected to the second component; The gas circuit channel is restricted within the contours of the first component, the second component and the third component.

2. The breathing trainer based on the active cycle technology according to claim 1, wherein The gas circuit channel located within the contour of the first component is provided with a buffer chamber and a first linear chamber. The buffer chamber and the first linear chamber are in communication. Among them, the first linear chamber is located on the side of the buffer chamber; The gas circuit component further includes a porous component. The porous component is detachably arranged in the buffer chamber. Among them, the porous component is provided with a cylindrical wall. A plurality of through holes are arranged on the wall. Along the direction from the first end to the second end, the plurality of through holes are configured in multiple layers at a preset interval. The plurality of through holes in any layer are configured on the same circumference; The first end is located within the wall, and the first end forms a clearance fit with the wall; The gas circuit channel located within the contour of the second component is provided with a second linear chamber and a third linear chamber. The second component is provided with a connection port, and the connection port is in communication with the third linear chamber. The second linear chamber and the third linear chamber are parallel to each other and isolated from each other; The gas circuit channel located within the contour of the third component is provided with a fourth linear chamber, a first opening and a second opening. The opening directions of the first opening and the second opening are the same and are respectively perpendicular to the extension direction of the fourth linear chamber; The first linear chamber and the second linear chamber are in communication. The second linear chamber is in communication with the fourth linear chamber through the first opening. The fourth linear chamber is in communication with the third linear chamber through the second opening.

3. The breathing trainer based on the active cycle technology according to claim 1, wherein The second component is provided with a reset chamber, and a helical spring is arranged in the reset chamber; The piston component is provided with a limit disk. The limit disk and the piston component are integrally formed or detachably connected in a coaxial state. The limit disk is restricted within the reset chamber; The limit disk has a first surface facing the telescopic mechanism and a second surface facing away from the telescopic mechanism. The helical spring is sleeved on the piston component located on the second surface.

4. The breathing trainer based on the active cycle technology according to any one of claims 1 to 3, characterized in that, The air circuit assembly is provided with an impeller component, and the impeller component is rotatably sleeved on the piston component. Among them, a plurality of blades of the impeller component are located in the air circuit channel, and the rotating shaft of the impeller component extends from the inside of the air circuit channel to the outside; The electric component further includes a first gear set, a speed encoder, an indicator light, a housing and a base; The base covers the housing, and an accommodation cavity is formed between the base and the housing. The first gear set and the speed encoder are respectively arranged in the accommodation cavity, and the indicator light is arranged on the housing; The housing is provided with a guiding through hole for the piston component and the impeller component to be inserted into; The first gear set includes a driving gear and a detecting gear. Among them, a part of the driving gear extends into the contour of the guiding through hole. The impeller component inserted into the housing is provided with a gear portion, and the gear portion meshes with the driving gear. The driving gear meshes with the detecting gear, and the rotating shaft of the speed encoder is coaxially arranged with the detecting gear; The output information of the speed encoder is used to turn on the indicator light.

5. The breathing trainer based on the active cycle technology according to claim 4, wherein The telescopic mechanism includes a sleeve and a lead screw. The inner wall of the sleeve is provided with an internal thread, and the external thread of the lead screw is connected to the internal thread; The motor is used to drive the lead screw to rotate.

6. The breathing trainer based on the active cycle technology according to claim 5, characterized in that, The electric component further includes a guiding column; A guiding block is arranged on the outer wall of the sleeve, and a guiding groove is arranged on the guiding column. The guiding block and the guiding groove are in sliding fit. Among them, the sliding direction of the guiding block relative to the guiding groove is parallel to the movement path of the piston component relative to the air circuit channel.

7. The breathing trainer based on the active cycle technology according to claim 5, wherein The electric component further includes a driving gear and a driven gear; The driving gear is coaxially connected to the motor shaft of the motor, the driven gear is coaxially connected to the lead screw, and the driving gear and the driven gear mesh with each other.

8. The breathing trainer based on the active cycle technology according to claim 1, characterized in that The electric component further includes a control circuit board, a control switch and a horn; The motor, the horn and the control switch are respectively electrically connected to the control circuit board.

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