A post-thoracotomy respiratory squeezing training device with double threshold feedback mechanism

Abstract

This utility model relates to the field of medical rehabilitation equipment technology, and provides a post-thoracic respiratory compression training device with a dual-threshold feedback mechanism. It includes a force adjustment component and its multi-position slots mounted on the patient's back, a band-shaped airbag surrounding the waist and abdomen, and a respiratory inflation component. The ring-shaped abdominal pressure airbag consists of a main inflation chamber, a connecting end, and a limiting seat. The main inflation chamber expands after the patient exhales and generates compression force on the abdomen. The limiting seat can be detached and inserted into different slots to limit the maximum expansion. The respiratory inflation component includes an exhalation tube connected to the mouthpiece, an exhalation one-way valve, and an electronic exhaust valve. The one-way valve controls the airflow into the main inflation chamber, and the electronic exhaust valve releases pressure when the internal pressure reaches a set threshold. This utility model provides a new post-thoracic respiratory compression training device with a safe and adjustable structure, clear feedback, and effective post-thoracic respiratory compression training. It offers good training results and strong auxiliary capabilities.

Description

Technical Field

[0001] This utility model relates to the field of medical rehabilitation equipment technology, and in particular to a post-thoracic respiratory compression training device with a dual threshold feedback mechanism. Background Technology

[0002] Following thoracic surgery, patients often experience significant respiratory function limitations due to incision pain, decreased chest wall compliance, and respiratory muscle weakness. This greatly increases the risk of serious complications such as atelectasis, pulmonary infection, and sputum retention, severely impacting postoperative recovery. Existing postoperative respiratory training devices primarily rely on single resistance adjustment mechanisms or simple balloon compression methods. However, these devices generally suffer from insufficient training dimensions, limited feedback mechanisms, and low adjustment precision, making it difficult to meet the personalized, precise, and systematic needs of postoperative respiratory rehabilitation.

[0003] For example, Chinese patent CN219614844U discloses a lung capacity training device based on respiratory medicine. This device uses a piston plate and a weight box inside the tank, and adjusts the training intensity by controlling the weight of the weight box with a water tank. Although this solution can achieve a certain degree of resistance adjustment, it has the following shortcomings: it only trains in one direction (exhalation or inhalation), and cannot achieve bidirectional synchronous training of exhalation and inhalation; the method of adjusting resistance by the weight of the weight box is relatively crude, making it difficult to achieve precise threshold setting; and the device lacks real-time pressure monitoring and multi-dimensional feedback mechanisms, making it difficult for patients and medical staff to accurately grasp the training intensity and training effect, which is not conducive to the development of personalized rehabilitation plans.

[0004] Another example is Chinese patent CN203852690U, which discloses a simple breathing bag-assisted compression device. This device uses leverage to assist medical staff in compressing the breathing bag for assisted breathing in patients with respiratory failure. While this solution saves effort, its design purpose is primarily to assist emergency breathing, not postoperative respiratory function training. The device lacks resistance threshold adjustment, making it impossible to provide progressive training based on the patient's recovery progress. Furthermore, the device relies on continuous operation by medical staff, and patients cannot complete training independently, making it unsuitable for long-term use during the postoperative recovery period.

[0005] In addition, the following common defects still exist in the existing technology:

[0006] 1. Most breathing training devices can only perform one of the two training methods, namely expiratory or inspiratory training, and cannot simultaneously train both expiratory and inspiratory muscle groups. As a result, the training effect is limited and cannot comprehensively improve respiratory function.

[0007] 2. Existing devices mostly have fixed resistance levels or rely on weight adjustment, which cannot achieve independent and fine adjustment of the expiratory and inspiratory thresholds, and are difficult to personalize according to individual patient differences (age, physical condition, type of surgery) and recovery stage (early, middle and late postoperative period).

[0008] This utility model was developed to address the common problems in this field, such as single training dimension, coarse threshold adjustment, and insufficient auxiliary capabilities. Utility Model Content

[0009] The purpose of this invention is to address the shortcomings of current methods by proposing a post-thoracic respiratory compression training device with a dual threshold feedback mechanism.

[0010] In order to overcome the shortcomings of the existing technology, the present invention adopts the following technical solution:

[0011] A post-thoracic respiratory compression training device with a dual threshold feedback mechanism includes a force adjustment component, a ring-shaped abdominal pressure inflatable bladder, and a respiratory inflation component. The force adjustment component is mounted on the user's back and has multiple slots. The ring-shaped abdominal pressure inflatable bladder is a band that can be wrapped around the patient's waist and abdomen. The ring-shaped abdominal pressure inflatable bladder includes a main inflation chamber, a connecting end, and a limiting seat. The main inflation chamber receives and inflates the air exhaled by the patient. The connecting end is located at both ends of the main inflation chamber. The limiting seat is fixedly mounted on the connecting end and can be detachably inserted into the slots.

[0012] The breathing inflation component includes an expiratory tubing, an expiratory one-way valve, and an electronic exhaust valve. One end of the expiratory tubing is connected to one end of a gripping rod, and the other end of the expiratory tubing is connected to a connecting nozzle. The connecting nozzle is detachably connected to the main inflation chamber. The electronic exhaust valve is disposed on the main inflation chamber and communicates with the interior of the main inflation chamber. The gripping rod is fixedly connected between the bite and the expiratory tubing and is operated by the patient. The expiratory one-way valve is disposed in the expiratory tubing and allows airflow to enter the main inflation chamber from the bite, causing the main inflation chamber to inflate and bulge against the user's abdomen.

[0013] Optionally, the force adjustment component includes a back limiting plate, which is arc-shaped or flat and is set on the patient's back or on the bed surface when lying flat. The back limiting plate is provided with multiple slots.

[0014] The slot includes at least three different positions; the closer the position is to the abdomen, the smaller the maximum expansion of the ring-shaped abdominal pressure inflator and the greater the compression force on the waist and abdomen.

[0015] Optionally, the main inflation chamber of the annular abdominal pressure inflatable bladder is made of medical-grade TPU, medical-grade silicone, or medical-grade PVC material.

[0016] Optionally, the main inflation chamber adopts a segmented structure, including 3 to 5 independent or semi-independent airbag units, which are connected in series or in parallel through connecting tubes.

[0017] Optionally, the back limiting plate includes a fitting part and a locking part, wherein the locking part is disposed on both sides of the fitting part to form symmetrically arranged locking areas.

[0018] Optionally, the limiting seat is provided with a snap-fit ​​protrusion, which adopts a snap-fit, pin, or Velcro connection structure and can be quickly detached from the slot.

[0019] Optionally, the limiting seat is made of high-strength nylon, stainless steel, or aluminum alloy.

[0020] Optionally, it also includes a waist belt fixing plate, which is disposed on the outside of the annular abdominal pressure inflatable bladder, and the two ends of the waist belt fixing plate are respectively connected to the limiting seat.

[0021] Optionally, the bite is made of medical-grade silicone, and the contact surface between the bite and the user is smooth.

[0022] Optionally, the one-way exhalation valve may employ a silicone valve or a duckbill valve structure.

[0023] The beneficial effects achieved by this utility model are:

[0024] 1. The dorsal limiting plane formed by the force adjustment component, the limited directional expansion capacity of the ring-shaped abdominal pressure airbag, and the adaptive inflation and deflation structure of the breathing inflation component work together to ensure that the airbag compression force can be concentrated on the central area of ​​the abdomen and maintain directional output, thus ensuring that the entire device has a stable, safe, and non-deviation abdominal compression effect.

[0025] 2. By limiting the maximum expansion stroke through the force adjustment component, forming an abdominal compression by the ring-shaped abdominal pressure inflatable bladder, and the cooperation of the one-way valve and electronic exhaust valve in the breathing inflation component, the abdominal compression force can be finely distinguished and intelligently adjusted through the first threshold and the second threshold, ensuring that the entire device has a higher precision training intensity control capability.

[0026] 3. By combining the directional expansion structure of the annular abdominal pressure inflator with the expiratory drive mechanism of the respiratory inflation component, the patient can receive external assisted abdominal pressure with each exhalation, thereby improving respiratory drive efficiency and ensuring that the device has the ability to effectively assist in the training of postoperative patients.

[0027] 4. By cooperating with the multi-position limiting structure of the force adjustment component and the directional expansion unit of the ring-shaped abdominal pressure inflatable bladder, the main inflation chamber can obtain different maximum expansion strokes at different slot positions, thereby realizing graded control of training pressure and ensuring that the entire device has a multi-dimensional and quantifiable breathing training mode.

[0028] 5. Through the multi-level limiting structure of the force adjustment component, the directional expansion structure of the ring-shaped abdominal pressure inflatable bladder, and the exhalation drive mechanism of the breathing inflation component, the training pressure can be graded and controlled according to the changes in the slot position, the inflation stroke of the bladder, and the exhalation intensity, ensuring that the entire device has a multi-dimensional, quantifiable, and adjustable breathing training mode. Attached Figure Description

[0029] The present invention can be further understood from the following description taken in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale, but rather the emphasis is on illustrating the principles of the embodiments. In different views, the same reference numerals designate the same parts.

[0030] Figure 1 This is a structural diagram of the back limiting plate, the ring-shaped abdominal pressure inflatable bladder, the waist belt fixing plate, and the breathing inflatable component of this utility model.

[0031] Figure 2 This is a schematic diagram of the structure of the breathing inflation component of this utility model.

[0032] Figure 3 This is a top view of the back limiting plate of this utility model.

[0033] Figure 4 This is a partial cross-sectional view of the back limiting plate, the ring-shaped abdominal pressure inflatable bladder, and the waist belt fixing plate of this utility model.

[0034] Figure 5 for Figure 4 Enlarged schematic diagram of part A in the middle.

[0035] Explanation of reference numerals in the attached drawings: 1. Back limiting plate; 2. Ring-shaped abdominal pressure inflatable bladder; 3. Waist belt fixing plate; 4. Fitting part; 5. Connecting nozzle; 6. Electronic exhaust valve; 7. Limiting seat; 8. Knob; 9. Groove; 10. Biting mouth; 11. Grip rod; 12. Exhalation tube; 13. Wedge hole; 14. Action block; 15. Limiting protrusion; 16. Action chamber; 17. Magnetic suction element; 18. Placement chamber; 19. Knob; 20. Rotating rod; 21. First magnetic pole; 22. Second magnetic pole. Detailed Implementation

[0036] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the spirit of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustrative purposes only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0037] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this embodiment provides a post-thoracic respiratory compression training device with a dual threshold feedback mechanism, including a force adjustment component, a ring-shaped abdominal pressure inflatable bladder 2, and a respiratory inflation component. The force adjustment component is set on the user's back and has multiple slots. The ring-shaped abdominal pressure inflatable bladder 2 is a strip that can be wrapped around the patient's waist and abdomen. The ring-shaped abdominal pressure inflatable bladder 2 includes a main inflation chamber, a connecting end, and a limiting seat 7. The main inflation chamber receives and inflates the gas exhaled by the patient. The connecting end is set at both ends of the main inflation chamber. The limiting component is fixedly set on the connecting end and can be detachably inserted into the slot.

[0038] The breathing inflation component includes an expiratory conduit 12, an expiratory one-way valve, and an electronic exhaust valve 6. One end of the expiratory conduit 12 is connected to one end of a gripping rod 11, and the other end of the expiratory conduit 12 is connected to a connecting nozzle 5. The connecting nozzle 5 is detachably connected to the main inflation chamber. The electronic exhaust valve 6 is disposed on the main inflation chamber and communicates with the interior of the main inflation chamber. The gripping rod 11 is fixedly connected between the bite plate 10 and the expiratory conduit 12 and is held by the patient for operation. It also serves as a mounting platform for the expiratory one-way valve or the electronic exhaust valve 6, thereby improving guidance, stability, and ease of operation during breathing. The expiratory one-way valve is disposed within the expiratory conduit 12 and allows airflow to enter the main inflation chamber from the bite plate 10, causing the main inflation chamber to inflate and bulge against the user's abdomen.

[0039] The connection method between the connecting nozzle 5 and the main inflation chamber can be snap-fit, plug-in, or screw-in, so that the user can quickly install or remove the main inflation chamber.

[0040] Optionally, the bite plate 10 is made of medical-grade silicone, and the contact surface between the bite plate 10 and the user is smooth. Optionally, the one-way exhalation valve adopts a silicone valve or a duckbill valve structure. The one-way exhalation valve is located inside the exhalation tubing 12 or the grip rod 11, allowing airflow to enter the main inflation chamber only from the direction of the bite plate 10, and preventing backflow of gas inside the main inflation chamber. Optionally, the one-way exhalation valve adopts a silicone valve or a duckbill valve structure to improve sealing and valve opening sensitivity.

[0041] The stable limiting structure formed by the force adjustment component works in conjunction with the overpressure protection mechanism of the electronic exhaust valve 6 to ensure that the maximum pressure of abdominal compression is controllable and will not exceed the safe range, thus ensuring that the device provides a stable and safe training experience for patients of different body types.

[0042] The force adjustment component includes a back limiting plate 1 set on the back of the patient. The back limiting plate 1 has multiple slots distributed along the direction of the patient's abdomen and back. The limiting seat 7 can be detachably inserted into different slots to limit the maximum expansion distance of the main inflation chamber, thereby forming a first threshold feedback.

[0043] Optionally, the force adjustment component includes a back limiting plate 1, which is arc-shaped or flat and is set on the patient's back or on the bed surface when lying flat. The back limiting plate 1 is provided with multiple slots.

[0044] The slot includes at least three different positions; the closer the position is to the abdomen, the smaller the maximum expansion of the ring-shaped abdominal pressure inflatable bladder 2, and the greater the compression force on the waist and abdomen.

[0045] The force adjustment component includes a back limiting plate 1 set on the back of the patient. The back limiting plate 1 is provided with a plurality of slots distributed along the length of the back limiting plate 1. The limiting seat 7 can be detachably inserted into different slots to limit the maximum expansion distance of the main inflation chamber, thereby forming a first threshold feedback.

[0046] In this embodiment, the electronic exhaust valve 6 has a settable opening pressure threshold. When the internal pressure of the main inflation chamber reaches the opening pressure threshold, it automatically opens to release pressure, thereby forming a second threshold feedback to prevent the main inflation chamber from over-expanding.

[0047] Preferably, the pressure range between the first threshold feedback and the second threshold feedback can be matched according to the patient's postoperative stage, so that the training can gradually transition from three stages: light, medium and heavy.

[0048] By limiting the maximum expansion stroke through the force adjustment component, and by forming an abdominal compression and breathing inflation component 2, the one-way valve and electronic exhaust valve 6 in the ring-shaped abdominal pressure inflation bladder work together to enable the abdominal compression force to be finely differentiated and intelligently adjusted through the first and second thresholds, ensuring that the entire device has a higher precision in controlling training intensity.

[0049] Preferably, the back support plate 1 adopts a straight or curved fit structure to adapt to the curvature of the human back and ensure the stress stability of the main inflation chamber during compression. The straight plate can be laid flat on the bed surface for breathing training while lying down.

[0050] The breathing inflation component also includes a pressure sensor, which is a flexible patch-type pressure sensor attached to the main inflation chamber. It indirectly reflects the internal air pressure of the main inflation chamber by sensing pressure changes on the outer wall of the airbag during inflation. The flexible patch-type sensor is thin and highly compliant, does not affect the deformation characteristics of the annular abdominal pressure inflation bladder 2, and can achieve pressure detection without damaging the airbag structure. The pressure signal from the pressure sensor is acquired and analyzed by a microprocessor to determine whether preset first and second thresholds have been reached, thereby controlling the action of the electronic exhaust valve 6 to achieve intelligent pressure feedback regulation.

[0051] In this embodiment, the interaction between the one-way expiratory valve in the breathing inflation component and the electronic exhaust valve 6 enables the entire device to trigger a first threshold for mild pressure relief and a second threshold for rapid pressure relief based on the patient's expiratory intensity, ensuring that the device has a more precise and safe threshold control capability.

[0052] Optionally, the back limiting plate 1 includes a fitting part 4 and a locking part, wherein the locking part is disposed on both sides of the fitting part 4 to form a symmetrically arranged locking area.

[0053] The back limiting plate 1 and the contact area of ​​the patient's back are provided with an arc-shaped fitting part 4, and the fitting part 4 is provided with a flexible contact pad, so that the patient's back and the user's back can make flexible contact.

[0054] Meanwhile, the arc-shaped fitting part 4 adapts to the physiological curvature of the patient's back to improve the force stability of the ring-shaped abdominal pressure inflator 2 during the compression process.

[0055] Optionally, the main inflation chamber of the annular abdominal pressure inflatable bladder 2 is made of medical-grade TPU, medical-grade silicone, or medical-grade PVC. Medical-grade TPU, medical-grade silicone, or medical-grade PVC materials have good flexibility, biocompatibility, and fatigue resistance, ensuring that they do not rupture or deform during repeated expansion and compression, and reducing patient skin tenderness. Optionally, the main inflation chamber adopts a segmented structure, including 3-5 independent or semi-independent air bladder units. These units are connected in series or parallel via connecting tubes to achieve uniform gas distribution or zoned inflation. This avoids localized pressure concentration in a single large chamber during expansion and allows for a more closely fitting circumferential support structure based on the patient's abdominal curvature. When one air bladder unit is underinflated or depressurized, the remaining units can still maintain the basic compression effect, improving the overall structural stability and safety.

[0056] In this embodiment, as Figure 1 As shown, an inflation port is provided in the middle of the annular abdominal pressure inflatable bladder 2, so that the external exhalation tube 12 can be quickly and detachably connected to the inflation port.

[0057] In addition, after the patient exhales through the expiratory tube 12 into the air inlet, the central airbag unit is preferentially inflated. Subsequently, gas is sequentially delivered to the left and right airbag units through the connecting tubes located on both sides of the central airbag unit, thereby causing the main inflation chamber to gradually expand from the center to both sides. This structure helps to maintain the basic symmetry of the force on the left and right sides of the annular abdominal pressure inflator 2, and also enables preferential compression of the anterior abdominal region, enhancing the stimulation effect on diaphragmatic activity.

[0058] By using a central air intake and progressive expansion on both sides, the airflow bias and local overpressure problems caused by single-end air intake can be reduced, thereby improving the uniformity of the extrusion pressure distribution and the comfort of the training process.

[0059] In addition, the inner side of the central airbag unit is provided with an annular air supply chamber. This annular air supply chamber is connected in parallel to the airbag units on both sides via multiple branch connecting pipes. This allows air to preferentially enter the central airbag unit during patient exhalation and then be simultaneously distributed to each airbag unit within a short period of time, thereby achieving a gradual expansion of the main inflation chamber from the center outwards. By adopting a parallel airway structure, shortening the length of the branch connecting pipes, and appropriately increasing their inner diameter, gas flow resistance can be effectively reduced, enabling the main inflation chamber to rapidly inflate multiple airbag units during a single exhalation, thus improving the sensitivity and stability of the compression feedback.

[0060] The initial effective volume of the central airbag unit is smaller than that of the two side airbag units, so that a very small amount of exhalation can generate a perceptible initial expansion in the center, and during continuous exhalation, it will sequentially drive the two side airbag units to expand, thus combining the rapid initial abdominal pressure formation with the subsequent surrounding and enveloping compression effect.

[0061] The dorsal limiting plane formed by the force adjustment component, the directional expansion capacity of the ring-shaped abdominal pressure inflatable bladder 2, and the adaptive inflation and deflation structure of the breathing inflation component work together to concentrate the airbag compression force on the central area of ​​the abdomen and maintain directional output, ensuring that the entire device has a stable, safe, and non-deviational abdominal compression effect.

[0062] During the inflation of the airbag unit, its inflation direction is constrained by both the back limiting plate 1 and the outer strap. This causes the main inflation chamber to be constrained by the back limiting plate 1 located on the back of the patient and the waist belt fixing plate 3 surrounding the outside when it is inflated. The back limiting plate 1 restricts it from bulging outwards towards the back of the patient, and the waist belt fixing plate 3 restricts it from spreading outwards. As a result, the airbag can only inflate directionally along the side closest to the abdomen, creating an inward pressure on the user's abdominal wall.

[0063] Through its directional expansion structure, the compressive force generated by the main inflation chamber is concentrated on the central abdominal region, creating stable and controllable auxiliary abdominal pressure. This auxiliary compression not only promotes downward movement of the diaphragm and enhances the coordination of thoracoabdominal breathing, but also provides external assistance when the patient's active breathing effort is insufficient, reducing the active exertion burden during early postoperative training and enabling patients to complete effective breathing exercises with less effort. The cyclical action of this auxiliary abdominal pressure helps to ensure sufficient airflow and exchange in the thoracic and abdominal cavities, improving lung recruitment efficiency and enhancing the overall effectiveness of breathing training.

[0064] The annular abdominal pressure inflatable bladder 2, with its directional abdominal expansion structure, works in conjunction with the expiratory drive mechanism of the respiratory inflation component to ensure that the patient receives external assisted abdominal pressure with each exhalation, improving respiratory drive efficiency and guaranteeing the device's ability to effectively assist in postoperative patient training. Optionally, the limiting seat 7 is provided with a snap-fit ​​protrusion, which uses a snap-fit, pin-type, or Velcro-type connection structure and can be quickly detached from the slot. Optionally, the limiting seat 7 is made of high-strength nylon, stainless steel, or aluminum alloy.

[0065] like Figure 5 As shown, in this embodiment, preferably, the snap-fit ​​protrusion adopts a pin-type structure and can be quickly detached from the card slot; in addition, a magnetic knob 19 is provided on one side of the card slot.

[0066] The limiting seat 7 has an actuating cavity 16, and an actuating block 14 is provided in the actuating cavity 16. Limiting protrusions 15 are provided on both sides of the actuating block 14 to restrict the actuating block 14 from exceeding the movement range of the actuating cavity 16. Simultaneously, a magnetic suction element 17 is provided on the side of the actuating block 14 facing the magnetic suction knob 19.

[0067] In this embodiment, one side wall of the card slot is provided with a placement cavity 18 with one end open; the rotary button is disposed in the placement cavity 18. In addition, the side wall of the placement cavity 18 facing the card slot is provided with a wedge hole 13.

[0068] The magnetic knob 19 includes a knob 19, a rotating rod 20, and a first magnetic pole 21 and a second magnetic pole 22 disposed on the rotating rod 20. The knob is disposed at one end of the rotating rod 20, and the other end of the rotating rod 20 extends toward the bottom wall of the placement cavity 18 and is hinged to the bottom wall of the placement cavity 18 to form a hinge portion.

[0069] When the snap-fit ​​protrusion is inserted into the slot, by rotating the knob 19, the first magnetic pole 21 on the rotating rod 20, which is opposite to the magnetic attraction of the magnetic attractor 17, attracts the actuating block 14 and weds it into the wedged hole 13.

[0070] When the actuating block 14 is attracted and wedged into the wedged hole 13, the locking protrusion is stably engaged in the slot, providing a stable locking effect and preventing the locking protrusion from loosening or shifting during use, thereby ensuring the structural stability and safety of the entire device during training. This locking structure allows users to quickly and easily assemble and disassemble the device without tools, while avoiding instability caused by frequent adjustments.

[0071] When it is necessary to release the restriction on the snap-fit ​​protrusion, by rotating the rotary knob, the first magnetic pole 21 on the rotating rod 20, which has the same magnetism as the magnetic suction member 17, repels the actuating block 14 out of the wedge hole 13 and returns it to its original position (the initial position is set to be hidden in the actuating cavity 16).

[0072] The unlocking process allows the locking protrusion to quickly release its lock, facilitating gear adjustment for the user. By rotating the knob 19, the user can easily adjust different gears, allowing the locking protrusion to move smoothly between multiple preset positions without the need for additional tools or complicated operations, thus improving the convenience of gear adjustment.

[0073] In this embodiment, the multi-position limiting structure of the force adjustment component cooperates with the directional expansion unit of the annular abdominal pressure inflatable bladder 2, so that the main inflation chamber can obtain different maximum expansion strokes at different slot positions, thereby realizing graded control of training pressure and ensuring that the entire device has a multi-dimensional and quantifiable breathing training mode.

[0074] Optionally, the post-thoracic respiratory compression training device further includes a waist belt fixing plate 3, which is disposed on the outside of the annular abdominal pressure inflatable bladder 2, and both ends of the waist belt fixing plate 3 are respectively connected to the limiting seat 7. The waist belt fixing plate 3 adopts a multi-joint connection to form a long strip structure and wraps around the outside of the annular abdominal pressure inflatable bladder 2.

[0075] The multi-joint structure allows the limiting seat 7 and the ring-shaped abdominal pressure inflatable bladder 2 to be adjusted between multiple levels.

[0076] The multi-joint structure not only enhances the flexibility of adjustment, allowing the device to adapt to users of different body types, but also provides more stable support, preventing loosening or instability during adjustment. Furthermore, the multi-joint structure allows the limiting seat 7 and the ring-shaped abdominal pressure inflatable bladder 2 to be flexibly adjusted between multiple positions, providing greater adaptability. To avoid minor deformation affecting the locking stability, the waist belt fixing plate 3 is equipped with an elastic connector or pin structure at the connection point with the locking slot, ensuring that even with minor deformation during adjustment, the locking point remains stable and secure.

[0077] The multi-joint structure allows users to easily adjust the seat to different positions to accommodate the abdominal compression training needs of different body types, enhancing the stability and flexibility of the device. Furthermore, by adjusting the positions of the waist belt fixing plate 3, users can select the appropriate pressure and expansion range to ensure both comfort and effectiveness during training. This design ensures sufficient abdominal compression force while avoiding discomfort or pressure on the user.

[0078] In this embodiment, the belt fixing plate 3 can be made of high-strength nylon or plastic material, ensuring the durability of the device and its stability during long-term use.

[0079] The post-thoracic respiratory compression training device also includes a microprocessor and a power supply device. The power supply device is electrically connected to the microprocessor, pressure sensor and electronic exhaust valve 6 respectively, and supplies power to the microprocessor and electronic exhaust valve 6, thereby converting the mains power into a voltage range that allows the above-mentioned devices or instruments to operate stably.

[0080] The microprocessor is electrically connected to the pressure sensor and the electronic exhaust valve 6, and runs according to a program preset in the microprocessor register or storage device. At the same time, it compares the pressure sensor with the preset first threshold and second threshold in real time, thereby controlling the opening and closing of the electronic exhaust valve 6.

[0081] Specifically, when the detected pressure value reaches the first threshold, the microprocessor controls the electronic exhaust valve 6 to release pressure at a low level; when the detected pressure value reaches the second threshold, the microprocessor controls the electronic exhaust valve 6 to open quickly to release excessive pressure and prevent discomfort or potential damage to the patient.

[0082] By combining real-time detection by pressure sensors with intelligent analysis by microprocessors, the system can record pressure changes and training counts during each inflation process, ensuring that the device has the advantages of visualized and quantifiable training data evaluation.

[0083] Optionally, the microprocessor includes a storage module and a communication module. The storage module stores pressure thresholds, training data, and historical records, while the communication module transmits pressure curves, training counts, or alarm information to an external terminal so that medical personnel or patients can view the training progress. This structure enables the training device to possess intelligent control functions such as pressure monitoring, threshold determination, automatic pressure relief, and training feedback, improving safety, stability, and training effectiveness.

[0084] It should be noted that the power supply device, microprocessor, storage module, and communication module can all utilize existing mature microelectronic devices and be integrated into the control components of the device. Those skilled in the art can select conventional microcontroller control boards, battery management modules, wireless communication modules, or storage chips for combination and configuration according to actual application requirements to achieve functions such as power management, pressure data processing, training record storage, and information transmission. Since the above-mentioned devices are all commonly used and mature modules in the field, their specific circuit structures and internal implementation methods are not the focus of this utility model and can be directly obtained by those skilled in the art; therefore, their internal structures are not described in detail in this embodiment.

[0085] In this embodiment, the multi-level limiting structure of the force adjustment component, the directional expansion structure of the ring-shaped abdominal pressure inflatable bladder 2, and the exhalation drive mechanism of the breathing inflation component work together to enable the training pressure to be graded and controlled according to the changes in the slot position, the inflatable bladder stroke, and the exhalation intensity, ensuring that the entire device has a multi-dimensional, quantifiable, and adjustable breathing training mode.

[0086] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the protection scope of the present utility model. Therefore, all equivalent technical changes made based on the contents of the present utility model specification and drawings are included within the protection scope of the present utility model. Furthermore, the elements therein can be updated as technology develops.

Claims

1. A post-thoracic respiratory compression training device with a dual threshold feedback mechanism, characterized in that, The device includes a force adjustment component, a ring-shaped abdominal pressure inflatable bag, and a breathing inflation component. The force adjustment component is mounted on the user's back and has multiple slots. The ring-shaped abdominal pressure inflatable bag is a band that can be wrapped around the patient's waist and abdomen. The ring-shaped abdominal pressure inflatable bag includes a main inflation chamber, a connecting end, and a limiting seat. The main inflation chamber receives and inflates the air exhaled by the patient. The connecting end is located at both ends of the main inflation chamber. The limiting seat is fixedly mounted on the connecting end and can be detachably inserted into the slots. The breathing inflation component includes an expiratory tubing, an expiratory one-way valve, and an electronic exhaust valve. One end of the expiratory tubing is connected to one end of a gripping rod, and the other end of the expiratory tubing is connected to a connecting nozzle. The connecting nozzle is detachably connected to the main inflation chamber. The electronic exhaust valve is disposed on the main inflation chamber and communicates with the interior of the main inflation chamber. The gripping rod is fixedly connected between the bite and the expiratory tubing and is operated by the patient. The expiratory one-way valve is disposed in the expiratory tubing and allows airflow to enter the main inflation chamber from the bite, causing the main inflation chamber to inflate and bulge against the user's abdomen.

2. The post-thoracic respiratory compression training device with a dual threshold feedback mechanism according to claim 1, characterized in that, The force adjustment component includes a back limiting plate, which is arc-shaped or flat and is set on the patient's back or on the bed surface when lying flat. The back limiting plate is provided with multiple slots. The slot includes at least three different positions; the closer the position is to the abdomen, the smaller the maximum expansion of the ring-shaped abdominal pressure inflator and the greater the compression force on the waist and abdomen.

3. The post-thoracic respiratory compression training device with a dual threshold feedback mechanism according to claim 2, characterized in that, The main inflation chamber of the annular abdominal pressure airbag is made of medical-grade TPU, medical-grade silicone, or medical-grade PVC.

4. The post-thoracic respiratory compression training device with a dual threshold feedback mechanism according to claim 3, characterized in that, The main inflation chamber adopts a segmented structure, including 3 to 5 independent or semi-independent airbag units, which are connected in series or in parallel through connecting tubes.

5. The post-thoracic respiratory compression training device with a dual threshold feedback mechanism according to claim 3 or 4, characterized in that, The back limiting plate includes a fitting part and a locking part, with the locking part disposed on both sides of the fitting part to form symmetrically arranged locking areas.

6. The post-thoracic respiratory compression training device with a dual threshold feedback mechanism according to claim 5, characterized in that, The limiting seat is provided with a snap-fit ​​protrusion, which adopts a snap-fit, pin, or Velcro connection structure and can be quickly detached from the slot.

7. The post-thoracic respiratory compression training device with a dual threshold feedback mechanism according to claim 6, characterized in that, The limiting seat is made of high-strength nylon, stainless steel, or aluminum alloy.

8. The post-thoracic respiratory compression training device with a dual threshold feedback mechanism according to claim 7, characterized in that, It also includes a waist belt fixing plate, which is disposed on the outside of the annular abdominal pressure inflatable bladder, and the two ends of the waist belt fixing plate are respectively connected to the limiting seat.

9. The post-thoracic respiratory compression training device with a dual threshold feedback mechanism according to claim 8, characterized in that, The bite is made of medical-grade silicone, and the contact surface between the bite and the user is smooth.

10. The post-thoracic respiratory compression training device with a dual threshold feedback mechanism according to claim 9, characterized in that, The one-way exhalation valve uses a silicone valve or duckbill valve structure.

Images