Lung expiration training equipment for thoracic surgery department

Abstract

The invention relates to the field of exhalation training, in particular to lung exhalation training equipment for thoracic surgery. The lung expiration training equipment for the thoracic surgery department comprises an expiration pipeline; one end of the expiration pipeline is communicated with a resistance pipe, a blowing nozzle cover is inserted into the other end of the expiration pipeline, a medical silica gel liner is arranged on the inner wall of the blowing nozzle cover, and an arc-shaped transition part is arranged on the edge of the outer end of the blowing nozzle cover; wherein a multi-stage resistance assembly is installed on the resistance pipe, and the multi-stage resistance assembly comprises a first-stage resistance piece arranged on the inner side of the resistance pipe. According to the lung expiration training equipment for the thoracic surgery department, a stepped adjusting interval is formed through the multiple stages of resistance assemblies, wherein the first-stage resistance meets the requirement for post-operation early-stage low-intensity adaptation training; the second-stage resistance increases the resistance by compressing a first spring to adapt to middle-stage intensive training; the three-level resistance is superposed with the counter-acting force of the second spring, the later high-strength lifting training is met, and the defect that existing equipment is single in resistance level is overcome.

Description

Technical Field

[0001] The present invention relates to the field of exhalation training, and in particular to a lung exhalation training device used in thoracic surgery. Background Art

[0002] Thoracic surgery (such as lobectomy and radical esophagectomy) can have a direct impact on a patient's lung function. Postoperative pain from the surgical incision often prevents patients from taking deep breaths or coughing, leading to reduced lung ventilation. Furthermore, a weakened cough reflex can lead to the retention of respiratory secretions, which can easily lead to complications such as atelectasis and lung infection. Therefore, conducting scientific lung exhalation training after surgery is a key medical intervention to promote lung function recovery and reduce the incidence of complications.

[0003] Currently, commonly used lung exhalation training equipment in clinical practice (such as simple spirometers and traditional resistance breathing trainers) cannot meet the personalized training needs of patients after thoracic surgery. They mainly have the following defects: Most devices only offer 1-2 fixed resistance levels, which are unable to adapt to the patient's dynamic recovery process after surgery. For example, patients require low-intensity adaptation training one week after surgery, and medium-intensity strengthening training 2-4 weeks after surgery. Existing devices cannot flexibly switch resistance levels. Patients either give up training due to excessive resistance or fail to achieve the desired recovery effect due to insufficient resistance. The device's expiratory tube has a fixed diameter, which doesn't account for differences in population size. For one thing, adolescents and adults have different expiratory flow rates and oral cavity dimensions. Furthermore, patients with mildly impaired preoperative lung function may have different initial expiratory capacity than those without the condition. This fixed diameter can cause some patients to exert extra force to overcome tube resistance, increasing the burden on their bodies after surgery.

[0004] Therefore, it is necessary to provide a new lung exhalation training device for thoracic surgery to solve the above technical problems. Summary of the Invention

[0005] In order to overcome the defects of the existing technology, a lung exhalation training device for thoracic surgery is provided to solve the above problems.

[0006] The application provides a lung exhalation training device for thoracic surgery, which comprises an exhalation pipe, a resistance pipe communicated with one end of the exhalation pipe, a blowing nozzle cover inserted into the other end of the exhalation pipe, a medical silica gel gasket arranged on the inner wall of the blowing nozzle cover, and an arc-shaped transition part arranged on the outer end edge of the blowing nozzle cover; a multi-stage resistance assembly is arranged on the resistance pipe; the multi-stage resistance assembly comprises a first-stage resistance part arranged on the inner side of the resistance pipe, a plurality of guide rods equidistantly arranged on the first-stage resistance part, a piston plate slidably connected to the outer side of each guide rod, a sliding connection between the outer side of each guide rod and the inner side of the resistance pipe, and a first spring sleeved with the outer side of each guide rod; a second-stage resistance part arranged on one side of the piston plate in the resistance pipe, a resistance plate slidably connected to the outer side of the plurality of guide rods, the resistance plate located on the side of the first spring away from the piston plate, a push rod connected to the side of the resistance plate away from the piston plate, an end of the push rod penetrating through the inner wall of the resistance pipe and connected with a knob, a first thread arranged on the outer side of the push rod close to the resistance plate, a thread groove corresponding to the first thread arranged on the side of the resistance pipe away from the exhalation pipe, and a screw thread connection between the push rod and the thread groove through the first thread and the thread groove; and a third-stage resistance part arranged on the side of the resistance pipe away from the exhalation pipe, a second thread arranged on the outer side of the push rod, the second thread located on the center side of the push rod, a screw thread connection between the outer side of the second thread and a screw block, a plurality of connecting plates connected to the screw block, an adjusting rod connected to each connecting plate through a clamping piece, a limiting block connected to both ends of the adjusting rod, the adjusting rod penetrating through the resistance pipe and the resistance plate and extending into the resistance pipe at one end, a second spring sleeved with the outer side of the adjusting rod, and the second spring located on the side of the resistance plate close to the piston plate; a variable-diameter assembly is arranged on the exhalation pipe, the hole diameter of the exhalation pipe can be changed through the variable-diameter assembly to adapt to the initial exhalation strength of different patients, and the multi-stage resistance assembly and the variable-diameter assembly form a stepped resistance adjustment interval to meet the training needs of different recovery stages after thoracic surgery.

[0007] Preferably, the screw threads of the first thread and the second thread are opposite in screw direction.

[0008] Preferably, each connecting plate is connected with an extension rod on the side close to the resistance pipe, and each extension rod is connected with the resistance pipe on the side away from the connecting plate.

[0009] Preferably, the clamping member includes a fixed plate connected to one side of the connecting plate, and the fixed plate is located on the side of the connecting plate away from the threaded block. The fixed plate, one side of the fixed plate is rotatably connected to two driven gears, and the two driven gears are meshed and connected on the relatively close sides. The bottom side of the two driven gears is connected to a swing rod, and the ends of the two swing rods away from the driven gears are connected to a clamping arc plate, and the bottoms of both sides of the two fixed plates are connected to traction rods, and the end of each traction rod away from the fixed plate is connected to the outer middle end of the clamping arc plate.

[0010] Preferably, the clamping member also includes a transmission gear rotatably connected to the top of one side of the fixed plate, the bottom of the transmission gear is meshed with the top of one of the driven gears, and the top side of the transmission gear is meshed with a driving gear, and the driving gear is installed on the outside of the push rod.

[0011] Preferably, the reducing assembly includes a mounting ring on the outside of the exhalation duct, and a rotating disk and a positioning disk are provided on the inner wall of the mounting ring at intervals along the axial direction of the exhalation duct. The positioning disk is connected to the inner wall of the mounting ring, and the rotating disk is rotatably connected to the inner wall of the mounting ring through an annular bearing, and a through hole for gas to pass through is opened in the center of both.

[0012] Preferably, a plurality of reducing plates are evenly distributed along the circumferential direction between the rotating disk and the positioning disk, each reducing plate is connected to a follower shaft on the side away from the positioning disk, an arc-shaped follower groove corresponding to the follower shaft is provided on the rotating disk, each reducing plate is connected to a positioning plate on the side away from the rotating disk, and a positioning groove corresponding to the positioning plate is provided on the positioning disk.

[0013] Preferably, a gear ring is connected to the outer side of the rotating disk, a spur gear is meshed on the top of the gear ring, the spur gear is rotatably connected to the inner side wall of the mounting ring, and an adjustment knob for driving the spur gear to rotate is installed on the outer side of the mounting ring.

[0014] Preferably, a sealing ring is installed in the mounting ring, and the sealing ring is located between the rotating disk and the positioning disk.

[0015] Preferably, an air intake one-way valve is installed in the exhalation duct at a side of the reducing assembly close to the blowing mouthpiece, and an exhaust valve is installed at the bottom of the resistance tube close to the exhalation duct.

[0016] Compared with related technologies, the lung exhalation training device for thoracic surgery provided by the present invention has the following beneficial effects: The present invention forms a stepped adjustment range through a multi-level resistance component: the first-level resistance meets the low-intensity adaptation training in the early stage after surgery; the second-level resistance increases the resistance by compressing the first spring, which is adapted to the mid-term intensive training; the third-level resistance is superimposed on the reaction force of the second spring to meet the high-intensity enhancement training in the later stage, solving the defect of the single resistance level of existing equipment.

[0017] The present invention can flexibly adjust the aperture of the exhalation duct through the variable diameter component: when the aperture is adjusted to a larger size, the airflow resistance is small, which is suitable for patients in the early postoperative period with weak exhalation ability; when the aperture is adjusted to a smaller size, the initial airflow resistance is slightly increased, which is suitable for patients in the middle recovery period with strong exhalation ability, avoiding the problem of excessively high training threshold caused by the fixed duct aperture.

[0018] The present invention achieves precise coordination of resistance adjustment and convenient operation through the coordination of thread rotation design and gear linkage structure: the first thread and the second thread on the outside of the push rod are designed in reverse. When the knob is turned, the push rod is pushed into the resistance tube by the first thread, pushing the resistance plate to adjust the compression of the first spring; at the same time, the second thread drives the thread block away from the resistance tube, and drives the adjustment rod to compress the second spring through the connecting plate and the clamping member, and the reverse action avoids interference between components. The clamping member is automatically tightened and loosened through gear linkage: the active gear rotates with the push rod, and drives the swing rod through the transmission gear and the driven gear to control the opening and closing of the clamping arc plate, without manual operation. Resistance adjustment and clamping control can be completed synchronously by only turning the knob, taking into account both adjustment accuracy and operational convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a preferred embodiment of the lung exhalation training device for thoracic surgery provided by the present invention; Figure 2 for Figure 1 The schematic diagram of the structure of the multi-stage resistance assembly shown; Figure 3 for Figure 1 A schematic structural diagram of the clamping member shown; Figure 4 for Figure 1 The schematic diagram of the structure of the exhalation duct shown; Figure 5 for Figure 1 A schematic diagram of the structure of one of the diameter reducing components exploded as shown; Figure 6 for Figure 1 The schematic diagram of the structure of the second exploded reducer assembly is shown.

[0020] Label in the figure: 1, expiration pipeline; 11, resistance pipe; 12, blowing nozzle cover; 2, guide rod; 21, piston plate; 22, first spring; 3, resistance plate; 31, push rod; 32, knob; 33, first thread; 4, second thread; 41, threaded block; 42, connecting plate; 43, adjusting rod; 44, limiting block; 45, second spring; 46, telescopic rod; 5, fixed plate; 51, driven gear; 52, swing rod; 53, clamping arc plate; 54, traction rod; 55, transmission gear; 56, driving gear; 6, mounting ring; 61, rotating disc; 62, positioning disc; 63, reducing piece; 64, follower shaft; 65, tooth ring; 66, spur gear; 67, sealing ring. DETAILED DESCRIPTION

[0021] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in details below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not used to limit the present application.

[0022] The specific implementation of the present application is described in details below with reference to specific embodiments.

[0023] An embodiment of the present invention provides a lung exhalation training device for thoracic surgery, which comprises: an exhalation pipe 1; one end of the exhalation pipe 1 is connected to a resistance pipe 11, and the other end is connected to a blowing mouthpiece 12, and the inner wall of the blowing mouthpiece 12 is provided with a medical silicone pad, and the edge of the outer port is provided with an arc-shaped transition portion; wherein, a multi-stage resistance assembly is installed on the resistance pipe 11, and the multi-stage resistance assembly comprises: a first-stage resistance member, which is arranged on the inner side of the resistance pipe 11, and the first-stage resistance member comprises a plurality of guide rods 2 installed equidistantly in the resistance pipe 11, and the outer side of each guide rod 2 is slidably connected to a piston plate 21, and the outer side of the guide rod 2 The second resistance member is arranged on one side of the piston plate 21 in the resistance tube 11, and the second resistance member includes a resistance plate 3 that is slidably connected to the outer sides of the plurality of guide rods 2, and the resistance plate 3 is located on the side of the first spring 22 away from the piston plate 21, and the resistance plate 3 is connected to the side of the piston plate 21 away from the piston plate 21 with a push rod 31, and the end of the push rod 31 away from the resistance plate 3 passes through the inner wall of the resistance tube 11 and is connected to the knob 32, and the outer side of the push rod 31 is provided with a first thread 33 near the resistance plate 3, and the side of the resistance tube 11 away from the exhalation duct 1 is provided with a thread that is connected to the first thread The thread groove corresponding to the groove 33, the push rod 31 is threadedly connected to the thread groove through the first thread 33; the three-stage resistance member is arranged on the side of the resistance tube 11 away from the exhalation tube 1, and the three-stage force member includes a second thread 4 installed on the outside of the push rod 31, and the second thread 4 is located on the center side of the push rod 31, the outer side of the second thread 4 is threadedly connected to a thread block 41, and the circumferential side of the thread block 41 is connected to a plurality of connecting plates 42, and each connecting plate 42 is connected to an adjusting rod 43 on the side away from the thread block 41 through a clamping member, and both ends of the adjusting rod 43 are connected to a limiting block 44, and one end of the adjusting rod 43 passes through the resistance tube 11 and the resistance plate 3 and extends It extends into the resistance tube 11, and the outer side of the adjustment rod 43 is sleeved with a second spring 45, and the second spring 45 is located on the side of the resistance plate 3 close to the piston plate 21; a reducing assembly is installed on the exhalation pipe 1, and the reducing assembly can change the aperture of the exhalation pipe 1 to adapt to the initial exhalation intensity of different patients, and cooperate with the multi-stage resistance assembly to form a stepped resistance adjustment range to meet the training needs of different recovery stages after thoracic surgery. The thread rotation direction of the first thread 33 and the second thread 4 are opposite, and each connecting plate 42 is connected to a telescopic rod 46 on the side close to the resistance tube 11, and each telescopic rod 46 is connected to the resistance tube 11 on the side away from the connecting plate 42.

[0024] It should be noted that the core of the device is the exhalation pipe 1, one end of which is connected to the resistance tube 11 for providing training resistance, and the other end is connected to the blowing mouthpiece 12 for the patient to blow; the multi-stage resistance component located on the resistance tube 11 is used to achieve exhalation resistance adjustment of different intensities, wherein in the first-level resistance component, multiple guide rods 2 equidistantly installed on the inner side of the resistance tube 11 provide sliding guides for the piston plate 21, the piston plate 21 is slidably connected to the outer side of the guide rod 2, and the first spring 22 sleeved on the outer side of the guide rod 2 generates basic resistance when the piston plate 21 slides under the thrust of exhalation; in the second-level resistance component, the resistance plate 3 slidably connected to the outer side of the guide rod 2 can cooperate with the piston plate 21 to adjust the resistance range, and the push rod 31 passing through the inner wall of the resistance tube 11 is threadedly connected to the corresponding thread groove of the resistance tube 11 through the outer first thread 33. Turning the knob 32 at the end of the push rod 31 can push the resistance plate 3 to move along the guide rod 2, thereby adjusting the first spring The initial compression state of the spring 22 is used to change the size of the basic resistance; in the three-level resistance part, the second thread 4 on the outside of the push rod 31 is threadedly connected to the threaded block 41, and the adjusting rod 43 connected to the connecting plate 42 on the side of the threaded block 41 through the clamping part passes through the resistance tube 11 and the resistance plate 3 and extends into the tube. The second spring 45 on the outside of the adjusting rod 43 can help increase the resistance grading accuracy, and the telescopic rod 46 on the side of the connecting plate 42 close to the resistance tube 11 provides a sliding guide for the threaded block 41 and the connecting plate 42. Because the first thread 33 and the second thread 4 rotate in opposite directions, when the knob 32 is turned, the positions of the resistance plate 3 and the adjusting rod 43 can be coordinated synchronously to avoid adjustment conflicts; in addition, the reducing assembly installed on the exhalation duct 1 can change the aperture of the exhalation duct 1 to adapt to the initial exhalation intensity of different patients, and then cooperate with the multi-stage resistance assembly to form a stepped resistance adjustment range, ultimately meeting the training needs of patients in different recovery stages after thoracic surgery.

[0025] In an embodiment of the present invention, the clamping member includes a fixed plate 5 connected to one side of the connecting plate 42, and the fixed plate 5 is located on the side of the connecting plate 42 away from the threaded block 41, the fixed plate 5, and one side of the fixed plate 5 is rotatably connected to two driven gears 51, and the two driven gears 51 are meshed and connected on the relatively close side. The bottom side of the two driven gears 51 is connected to a swing rod 52, and the two swing rods 52 are connected to a clamping arc plate 53 at one end away from the driven gear 51. The bottom of both sides of the two fixed plates 5 are connected to a traction rod 54, and the end of each traction rod 54 away from the fixed plate 5 is connected to the outer middle end of the clamping arc plate 53. The clamping member also includes a transmission gear 55 rotatably connected to the top of one side of the fixed plate 5, and the bottom of the transmission gear 55 is meshed and connected to the top of one of the driven gears 51. The top side of the transmission gear 55 is meshed and connected with a driving gear 56, and the driving gear 56 is installed on the outer side of the push rod 31.

[0026] It should be noted that: the side of the connecting plate 42 away from the threaded block 41 is connected to a fixed plate 5, which provides installation support for the entire clamping assembly; one side of the fixed plate 5 is rotatably connected to two driven gears 51, and the two are meshed with each other to form a transmission linkage structure, and the swing rod 52 connected at the bottom can swing synchronously with the rotation of the driven gear 51, thereby driving the clamping arc plate 53 at the end of the swing rod 52 to open and close, thereby clamping or loosening the adjusting rod 43; the traction rods 54 at the bottom of both sides of the fixed plate 5 provide guide limits for the swinging of the clamping arc plate 53 to prevent its deviation from causing unstable clamping; at the same time, the transmission gear 55 rotatably connected to the top of one side of the fixed plate 5 is responsible for power transmission, and the active gear 56 installed on the outside of the push rod 31 is meshed with the transmission gear 55, and can automatically adjust the tightness of the clamping arc plate 53 through gear linkage when the push rod 31 rotates with the knob 32. The adjustment principle is as follows: when the knob 32 is turned to rotate the push rod 31, the push rod 31 is pushed into the resistance tube 11 because the first thread 33 on the outside of the push rod 31 is threadedly connected to the thread groove of the resistance tube 11. Furthermore, because the first thread 33 rotates in opposite directions to the second thread 4 on the outside of the push rod 31, the second thread 4 drives the thread block 41 away from the resistance tube 11. At this time, the clamping arc 53 is clamping the adjustment rod 43. The movement of the thread block 41 synchronously drives the adjustment rod 43 through the connecting plate 42 and the clamping arc 53, compressing the second spring 45 on the outside of the adjustment rod 43. At the same time, the driving gear 56 on the outside of the push rod 31 rotates with the push rod, meshing with the transmission gear 55 to drive its rotation. The transmission gear 55, in turn, meshes with one of the driven gears 51, driving the two meshing driven gears 51 to rotate synchronously in opposite directions, thereby driving the swing arm 52 to swing, achieving the opening and closing adjustment of the clamping arc 53. When the opening and closing angle of the clamping arc plate 53 is greater than the diameter of the limit block 44 of the adjusting rod 43, the adjusting rod 43 is no longer clamped and fixed, and the compressed second spring 45 releases its elastic force, pushing the adjusting rod 43 toward the piston plate 21 until the second spring 45 abuts against the piston plate 21, finally completing the third resistance application and further refining the resistance grading.

[0027] In an embodiment of the present invention, the reducing assembly includes a mounting ring 6 on the outside of the exhalation tube 1, and a rotating disk 61 and a positioning disk 62 are provided on the inner side wall of the mounting ring 6 at intervals along the axial direction of the exhalation tube 1. The positioning disk 62 is connected to the inner side wall of the mounting ring 6, and the rotating disk 61 is rotatably connected to the inner side wall of the mounting ring 6 through an annular bearing, and a through hole for gas to pass through is opened in the center of both. A plurality of reducing plates 63 are evenly distributed along the circumferential direction between the rotating disk 61 and the positioning disk 62, and each reducing plate 63 is connected to a follower shaft 64 on the side away from the positioning disk 62. An arc-shaped follow-up groove corresponding to the follow-up shaft 64 is provided on 61, and a positioning plate is connected to the side of each reducing piece 63 away from the rotating disk 61. A positioning groove corresponding to the positioning plate is provided on the positioning disk 62. A gear ring 65 is connected to the outer side of the rotating disk 61, and a spur gear 66 is meshed with the top of the gear ring 65. The spur gear 66 is rotatably connected to the inner side wall of the mounting ring 6. An adjusting knob for driving the spur gear 66 to rotate is installed on the outer side of the mounting ring 6. A sealing ring 67 is installed in the mounting ring 6, and the sealing ring 67 is located between the rotating disk 61 and the positioning disk 62.

[0028] It should be noted that: the diameter-changing component is installed based on the mounting ring 6 on the outside of the exhalation pipe 1. The inner wall of the mounting ring 6 is provided with a rotating disk 61 and a positioning disk 62 at intervals along the axial direction of the exhalation pipe 1, wherein the positioning disk 62 is connected to the inner wall of the mounting ring 6, and the rotating disk 61 is rotatably connected to the inner wall of the mounting ring 6 through an annular bearing, and a through hole for gas circulation is opened in the center of both, which together provide a support frame for diameter-changing adjustment; a plurality of diameter-changing pieces 63 uniformly distributed along the circumferential direction between the rotating disk 61 and the positioning disk 62 are the core components for realizing aperture adjustment, and each diameter-changing piece 63 is connected to a follower shaft 64 on the side away from the positioning disk 62, and the follower shaft 64 is correspondingly embedded in the arc-shaped follower groove on the rotating disk 61, and at the same time, each diameter-changing piece 63 is connected to a positioning plate on the side away from the rotating disk 61, and the positioning plate is correspondingly inserted into the positioning groove on the positioning disk 62, through the "follower The cooperation of the shaft-arc follower groove and the positioning plate-positioning groove can drive the reducing piece 63 to open and close synchronously when the rotating disk 61 rotates, thereby changing the flow aperture of the exhalation duct 1; the gear ring 65 connected to the outside of the rotating disk 61 is engaged with the spur gear 66 rotatably connected to the inner wall of the mounting ring 6, and the adjusting knob installed on the outside of the mounting ring 6 is used to control the rotation of the spur gear 66 to achieve precise control of the opening and closing degree of the reducing piece 63; in addition, the sealing ring 67 located between the rotating disk 61 and the positioning disk 62 in the mounting ring 6 can effectively block the gap between the reducing piece 63 and the connection gap between the components, so as to avoid gas leakage during exhalation affecting the resistance stability. Finally, the aperture of the exhalation duct 1 can be flexibly adjusted through the reducing component to adapt to the initial exhalation intensity of different patients, and cooperate with the multi-stage resistance component to construct a stepped resistance adjustment range to meet the training needs of different recovery stages after thoracic surgery.

[0029] In the embodiment of the present invention, an air intake one-way valve is installed in the exhalation pipe 1 on the side of the reducing assembly close to the blowing nozzle cover 12, and an exhaust valve is installed at the bottom of the resistance tube 11 close to the exhalation pipe 1.

[0030] It should be noted that: when the patient exhales into the exhalation duct 1 through the blowing mouthpiece mask 12, the air intake one-way valve can be opened smoothly to ensure that the airflow flows stably toward the resistance tube 11; and when the patient stops exhaling or there is a trend of airflow reflux, the air intake one-way valve will automatically close, effectively preventing the gas in the resistance tube 11 from flowing back to the blowing mouthpiece mask 12. An exhaust valve is installed at the bottom of the resistance tube 11 on one side close to the exhalation duct 1. Its main function is to assist in resetting the training cycle: when the patient finishes a single exhalation training, opening the exhaust valve can quickly discharge the gas accumulated in the resistance tube 11, so that the piston plate 21 moved by the thrust of the airflow, the compressed first spring 22 and the second spring 45 and other multi-stage resistance component parts are reset to the initial state when there is no airflow pressure and the gas is discharged, preparing for the patient's next exhalation training.

[0031] The working principle of the lung exhalation training device for thoracic surgery provided by the present invention is as follows: before training, the aperture of the exhalation duct is adjusted according to the patient's condition. The medical staff or the patient rotates the adjustment knob of the reducer assembly to drive the spur gear 66 inside the mounting ring 6 to rotate. The spur gear 66 engages with the gear ring 65 outside the rotating disk 61 to drive the rotating disk 61 to rotate. The rotating disk 61 drives the reducer 63 to slide along the positioning groove of the positioning disk 62 through the arc-shaped follower groove and the follower shaft 64 to adjust the aperture of the exhalation duct 1. The sealing ring 67 synchronously blocks the gap to prevent air leakage. Then, the exhaust valve at the bottom of the resistance tube 11 is closed to ensure that the resistance tube 11 forms a closed space. At this time, the multi-stage resistance assembly is in the initial state, the piston plate 21 is not stressed, the first spring 22 is naturally extended or slightly compressed, and the second spring 45 is not in contact with the piston plate 21; entering the graded training stage, in the early postoperative period (1-2 weeks), the patient holds the blowing mouthpiece 12 in his mouth and exhales. The airflow enters the resistance tube 11 through the air inlet check valve and the reducer assembly, and the thrust pushes the piston plate 2 1 slides along the guide rod 2 to compress the first spring 22, forming a first-level resistance for the patient to adapt to training. In the middle period after surgery (2-4 weeks), the patient can rotate the knob 32, driving the push rod 31 to advance into the resistance tube 11 through the first thread 33, pushing the resistance plate 3 to compress the first spring 22 to a preset state. When the patient exhales, the resistance plate 3 compresses the first spring 22 to complete the second-level resistance training. In the late period after surgery (more than 4 weeks), the knob 32 is continued to be rotated. Because the first thread 33 and the second thread 4 rotate in opposite directions, the second thread 4 drives the thread block 41 to move away from the resistance tube 11, driving the adjustment rod 43 through the connecting plate 42 and the clamping member to compress the second spring 45. At the same time, the driving gear 56 rotates with the push rod 31, and drives the swing rod 52 through the transmission gear 55 and the driven gear 51 to open the clamping arc plate 53. When the opening and closing angle is greater than the diameter of the limit block 44, the adjustment rod 43 is released, and the second spring 45 releases its elastic force to abut the piston plate 21. When the patient exhales, it needs to overcome the reaction force of the two springs to complete the third-level resistance training.

[0032] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A lung exhalation training device for thoracic surgery, characterized in that: include: Expiratory tube (1); One end of the exhalation pipe (1) is connected to a resistance tube (11), and the other end is connected to a blowing mouthpiece (12), and the inner wall of the blowing mouthpiece (12) is provided with a medical silicone pad, and the outer edge is provided with an arc-shaped transition portion; Wherein, a multi-stage resistance component is installed on the resistance tube (11), and the multi-stage resistance component includes: A first-level resistance member is arranged inside the resistance tube (11), the first-level resistance member comprises a plurality of guide rods (2) equidistantly installed inside the resistance tube (11), the outer side of each guide rod (2) being slidably connected to a piston plate (21), and the outer side of the guide rod (2) is slidably connected to the inner side of the resistance tube (11), and the outer side of each guide rod (2) is sleeved with a first spring (22); A secondary resistance member is provided on one side of the piston plate (21) in the resistance tube (11), the secondary resistance member includes a resistance plate (3) slidably connected to the outer sides of the plurality of guide rods (2), and the resistance plate (3) is located on the side of the first spring (22) away from the piston plate (21), the side of the resistance plate (3) away from the piston plate (21) is connected to a push rod (31), one end of the push rod (31) away from the resistance plate (3) passes through the inner wall of the resistance tube (11) and is connected to a knob (32), a first thread (33) is installed on the outer side of the push rod (31) near the resistance plate (3), a thread groove corresponding to the first thread (33) is provided on the side of the resistance tube (11) away from the exhalation duct (1), and the push rod (31) is threadedly connected to the thread groove through the first thread (33); The three-stage resistance member is arranged on the side of the resistance tube (11) away from the exhalation tube (1), and the three-stage force assembly member includes a second thread (4) installed on the outside of the push rod (31), and the second thread (4) is located on the center side of the push rod (31), the outer thread of the second thread (4) is connected to a thread block (41), and the peripheral side of the thread block (41) is connected to a plurality of connecting plates (42), and each connecting plate (42) is connected to an adjusting rod (43) on the side away from the thread block (41) through a clamping member, and both ends of the adjusting rod (43) are connected to a limiting block (44), one end of the adjusting rod (43) passes through the resistance tube (11) and the resistance plate (3) and extends into the resistance tube (11), and the outer side of the adjusting rod (43) is sleeved with a second spring (45), and the second spring (45) is located on the side of the resistance plate (3) close to the piston plate (21); A diameter reducing component is installed on the exhalation pipe (1), and the diameter reducing component can change the aperture of the exhalation pipe (1) to adapt to the initial exhalation intensity of different patients, and cooperate with the multi-stage resistance component to form a stepped resistance adjustment range to meet the training needs of different recovery stages after thoracic surgery.

2. The lung exhalation training device for thoracic surgery according to claim 1, characterized in that: The first thread (33) and the second thread (4) have opposite thread rotation directions.

3. The lung exhalation training device for thoracic surgery according to claim 1, characterized in that: A telescopic rod (46) is connected to a side of each connecting plate (42) close to the resistance tube (11), and a side of each telescopic rod (46) away from the connecting plate (42) is connected to the resistance tube (11).

4. The lung exhalation training device for thoracic surgery according to claim 1, characterized in that: The clamping member comprises a fixing plate (5) connected to one side of the connecting plate (42), and the fixing plate (5) is located on a side of the connecting plate (42) away from the threaded block (41), the fixing plate (5), one side of the fixing plate (5) is rotatably connected to two driven gears (51), the two driven gears (51) are meshed and connected on relatively close sides, the bottom side of the two driven gears (51) are connected to a swing rod (52), the ends of the two swing rods (52) away from the driven gears (51) are connected to a clamping arc plate (53), the bottoms of both sides of the two fixing plates (5) are connected to traction rods (54), and the end of each traction rod (54) away from the fixing plate (5) is connected to the outer middle end of the clamping arc plate (53).

5. The lung exhalation training device for thoracic surgery according to claim 4, characterized in that: The clamping member further comprises a transmission gear (55) rotatably connected to the top of one side of the fixing plate (5), the bottom of the transmission gear (55) being meshedly connected to the top of one of the driven gears (51), and one side of the top of the transmission gear (55) being meshedly connected to a driving gear (56), and the driving gear (56) being mounted on the outside of the push rod (31).

6. The lung exhalation training device for thoracic surgery according to claim 5, characterized in that: The reducing assembly comprises a mounting ring (6) on the outside of the exhalation pipe (1), an inner side wall of the mounting ring (6) is provided with a rotating disk (61) and a positioning disk (62) spaced apart along the axial direction of the exhalation pipe (1), the positioning disk (62) is connected to the inner side wall of the mounting ring (6), the rotating disk (61) is rotatably connected to the inner side wall of the mounting ring (6) via an annular bearing, and a through hole for gas to pass through is provided at the center of both.

7. The lung exhalation training device for thoracic surgery according to claim 6, characterized in that: A plurality of reducing pieces (63) are evenly distributed along the circumferential direction between the rotating disk (61) and the positioning disk (62), each reducing piece (63) is connected to a follower shaft (64) on a side away from the positioning disk (62), and an arc-shaped follower groove corresponding to the follower shaft (64) is provided on the rotating disk (61), each reducing piece (63) is connected to a positioning plate on a side away from the rotating disk (61), and a positioning groove corresponding to the positioning plate is provided on the positioning disk (62).

8. The lung exhalation training device for thoracic surgery according to claim 7, characterized in that: The outer side of the rotating disk (61) is connected to a gear ring (65), the top of the gear ring (65) is meshedly connected to a spur gear (66), the spur gear (66) is rotatably connected to the inner side wall of the mounting ring (6), and an adjustment knob for driving the spur gear (66) to rotate is installed on the outer side of the mounting ring (6).

9. The lung exhalation training device for thoracic surgery according to claim 8, characterized in that: A sealing ring (67) is installed in the mounting ring (6), and the sealing ring (67) is located between the rotating disk (61) and the positioning disk (62).

10. The lung exhalation training device for thoracic surgery according to claim 1, characterized in that: An air intake one-way valve is installed in the exhalation pipe (1) on the side of the reducing assembly close to the blowing mouthpiece (12), and an exhaust valve is installed at the bottom of the resistance pipe (11) close to the exhalation pipe (1).

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