Postoperative respiratory training device

By designing a postoperative respiratory training device with an adjustable number of coiled springs, the problem of constant elasticity in balloon training that could not be adjusted was solved. This enabled the adjustment of training intensity and assisted breathing based on the patient's recovery status, thereby improving the patient's respiratory function recovery.

CN115970235BActive Publication Date: 2025-12-30THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV

Patent Information

Application Number
CN202310037043.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-01-10
Publication Date
2025-12-30
Estimated Expiration
2043-01-10

AI Technical Summary

Technical Problem

Existing balloon training methods, due to their constant elasticity, cannot reasonably adjust the intensity of breathing training according to the patient's recovery status.

Method used

A postoperative breathing training device was designed, comprising a housing, a resistance mechanism, an adjustment mechanism, and a limiting component. The reverse resistance is adjusted by changing the number of turns of the spiral spring, and the reverse resistance is provided by the rotation of the fan blades and the spiral spring, which, together with the air intake and exhaust channels, enables breathing training.

Benefits of technology

It enables the reasonable adjustment of breathing training intensity according to the patient's recovery status, improves the training effect, and provides assisted breathing when blowing stops, thereby enhancing the recovery effect of respiratory function.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application provides a postoperative respiratory training device, which comprises a shell, a resistance mechanism, an adjusting mechanism and a limiting piece, opposite sides of the shell are respectively provided with an air inlet channel and an air outlet channel; the resistance mechanism comprises a rotating shaft, a fan blade and a spiral spring; the rotating shaft is rotatably installed in the shell, and a plurality of fan blades are installed on the rotating shaft; the outer end of the spiral spring is fixedly installed on the shell; the center end of the spiral spring is installed on the rotating shaft through the adjusting mechanism, and the adjusting mechanism can control the center end of the spiral spring to rotate around the rotating shaft; the fan blade is provided with a sliding groove in the length direction, one end of the limiting piece is slidably installed in the sliding groove, the shell is provided with a spiral groove, and the other end of the limiting piece is slidably installed in the spiral groove. The number of turns of the spiral spring is controlled through the adjusting mechanism; the number of turns of the spiral spring increases, which indicates that the reverse resistance is greater, and the number of turns of the spiral spring decreases, which indicates that the reverse resistance is smaller; thus, the size of the reverse resistance can be reasonably adjusted according to the rehabilitation condition of the patient.
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Description

Technical Field

[0001] This invention relates to the field of thoracic surgical breathing training technology, and more specifically to a postoperative breathing training device. Background Technology

[0002] For some patients who have undergone thoracic surgery, respiratory rehabilitation training is often needed to restore standard breathing function. Respiratory rehabilitation training has received much attention in recent years. In foreign countries, there are professional pulmonary therapists who are responsible for the postoperative lung treatment of patients and guide their respiratory function training. In recent years, China has begun to pay attention to the impact of respiratory function rehabilitation training on patients' lung function and the prevention of postoperative complications. Conventional respiratory function exercises rely on the experience of educators and patients themselves.

[0003] In general, patients are given balloons for breathing exercises. However, this method requires the patient to hold the balloon, put the mouthpiece in their mouth, and blow air into the balloon to train their breathing. This method is not standardized because the balloon's elasticity is constant, making it impossible to adjust the patient's breathing training according to their recovery progress. Summary of the Invention

[0004] In view of the above-mentioned problems in the existing technology, the technical problem to be solved by the present invention is that the method of balloon training is not standardized. Since the elasticity of the balloon is constant, the patient's breathing training cannot be reasonably adjusted according to the rehabilitation situation.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a postoperative breathing training device, comprising:

[0006] The housing has an air intake channel and an exhaust channel on opposite sides;

[0007] A resistance mechanism, comprising a rotating shaft, fan blades, and a spiral spring; the rotating shaft is rotatably mounted inside a housing, a plurality of fan blades are mounted on the rotating shaft, and the plurality of fan blades are arranged in a circular array with the axis of the rotating shaft as the center; the outer end of the spiral spring is fixedly mounted on the housing;

[0008] An adjusting mechanism is provided, wherein the center end of the spiral spring is mounted on a rotating shaft via the adjusting mechanism, and the adjusting mechanism is capable of controlling the rotation of the center end of the spiral spring around the rotating shaft; and

[0009] The limiting component has a sliding groove along the length of the fan blade, one end of which is slidably installed in the sliding groove, and the housing has a spiral groove, the other end of which is slidably installed in the sliding groove.

[0010] Preferably, the adjusting mechanism includes a sliding sleeve and locking blocks. The sliding sleeve is fitted onto the rotating shaft, one end of which passes through the housing, and the sliding sleeve is located outside the housing. The center end of the spiral spring is mounted on the sliding sleeve. Multiple locking blocks are fixedly installed inside the sliding sleeve, arranged in a circular array around the axis of the sliding sleeve. One end of the rotating shaft has multiple slots that mate with the locking blocks. Pulling the sliding sleeve causes the locking blocks inside to slide out of the slots on the rotating shaft. Rotating the sliding sleeve causes the center end of the spiral spring to rotate around the rotating shaft, thereby adjusting the number of turns of the spiral spring and thus the magnitude of the reverse resistance.

[0011] Preferably, the adjusting mechanism further includes a spring mounting sleeve, the central end of which is fixedly mounted inside the spring mounting sleeve. The spring mounting sleeve is fitted over the sliding sleeve and is slidable along the axial direction of the sliding sleeve. The spring mounting sleeve can slide on the sliding sleeve but cannot rotate around it, ensuring that the central end of the scroll spring is not pulled out when the sliding sleeve is pulled.

[0012] Preferably, the device further includes a return spring. The end of the rotating shaft near the sliding sleeve has an abutment block, and the end of the sliding sleeve away from the abutment block has an abutment sleeve. The return spring is sleeved on the rotating shaft, with one end abutting the abutment block and the other end abutting the abutment sleeve. Pulling the sliding sleeve causes the abutment sleeve and the abutment block to compress the return spring simultaneously. When released, the spring, under its elastic force, pushes the sliding sleeve back to its original position, allowing the locking block to automatically engage in the slot.

[0013] Preferably, the adjusting mechanism further includes a limiting wheel. The end of the rotating shaft away from the sliding sleeve passes through the housing, and the limiting wheel is fixedly installed at the end of the rotating shaft away from the sliding sleeve. The outer contour of the limiting wheel is uniformly provided with multiple grooves, and the housing is provided with a wheel groove that mates with the limiting wheel. Multiple fan blades are mounted on the rotating shaft through fan sleeves, and the fan sleeves can slide along the axial direction of the rotating shaft. The fan sleeves can only slide on the rotating shaft and cannot rotate on the rotating shaft. When the sliding sleeve is pulled, the sliding sleeve drives the rotating shaft to move, causing the rotating shaft to drive the limiting wheel into the wheel groove, and the grooves prevent the limiting wheel from rotating. Thus, the rotating shaft cannot rotate in either direction, so that the sliding sleeve cannot drive the rotating shaft to rotate regardless of whether it rotates in either direction. Therefore, when the reverse resistance is reduced, the rotating shaft will not rotate in the forward direction following the forward rotation of the sliding sleeve.

[0014] Preferably, it further includes a first sealing cover; the first sealing cover is detachably connected to the housing, the spiral spring is located inside the first sealing cover, and the sliding sleeve penetrates through the first sealing cover. The spiral spring is isolated by the first sealing cover.

[0015] Preferably, it further includes a second sealing cover, which is detachably connected to the housing, and the limiting wheel is located inside the second sealing cover. The limiting wheel is isolated and protected by the second sealing cover.

[0016] Preferably, the adjusting mechanism further includes a pivot spring and a flange; the pivot spring is sleeved on the pivot shaft, one end of the pivot spring abuts against the flange, and the other end of the pivot spring abuts against the housing, and the pivot spring can drive the pivot shaft to return to its original position. Pulling the sliding sleeve causes the pivot shaft to move while sliding, and the pivot shaft compresses the pivot spring through the flange. When the sliding sleeve is released, the pivot spring can drive the pivot shaft to return to its original position.

[0017] Preferably, the air intake channel is provided with a sealing sleeve. The sealing sleeve can effectively reduce air leakage between the patient's mouth and the air intake channel.

[0018] Preferably, a sponge sheet is provided inside the exhaust channel, and the sponge sheet is detachably connected to the exhaust channel. Installing a sponge sheet inside the exhaust channel can effectively isolate impurities from entering.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] 1. This invention can provide respiratory training for patients. When a patient needs to perform respiratory function training, they blow air into the air intake channel. The gas in the air intake channel enters the housing and drives the fan blades to rotate clockwise, which in turn drives the rotating shaft to rotate clockwise. The rotating shaft drives the spiral spring to store force, thus applying a reverse resistance to the rotation of the fan blades. This means that when the patient blows air into the air intake channel, they need to exert a certain amount of force to make the fan blades rotate, thereby achieving the effect of respiratory training. Subsequently, the gas in the housing is discharged through the exhaust channel. At this time, under the action of the spiral groove, the limiting member slides towards the outer end of the groove.

[0021] 2. It plays a certain role in assisting respiration. In this invention, when the patient stops blowing air, the spiral spring drives the fan blades to rotate and reset via the shaft. At this time, the gas moves in the opposite direction and enters the patient's mouth, playing a certain role in assisting respiration, thereby improving the effect of respiratory function training.

[0022] 3. The reverse resistance can be adjusted reasonably according to the patient's recovery status. In this invention, when it is necessary to adjust the magnitude of the reverse resistance, the center end of the spiral spring is controlled to rotate in the opposite direction around the axis by the adjustment mechanism; an increase in the number of spiral spring coils indicates a greater reverse resistance, and when the reverse resistance increases, the limiting component can effectively prevent the reverse resistance from not increasing; a decrease in the number of spiral spring coils indicates a smaller reverse resistance; thus, the magnitude of the reverse resistance can be reasonably adjusted according to the patient's recovery status. Attached Figure Description

[0023] To more clearly illustrate the specific embodiments of the present invention, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0024] Figure 1 This is a perspective view of a postoperative breathing training device provided in an embodiment of the present invention.

[0025] Figure 2 This is a top sectional view of a postoperative breathing training device provided in an embodiment of the present invention.

[0026] Figure 3 This is a side sectional view of a postoperative breathing training device provided in an embodiment of the present invention.

[0027] Figure 4 This is a perspective view of the resistance mechanism provided in an embodiment of the present invention.

[0028] Figure 5 This is a perspective view of the spiral spring provided in an embodiment of the present invention.

[0029] Reference numerals: 1-Housing, 11-Intake passage, 12-Exhaust passage, 13-Wheel groove, 2-Resistance mechanism, 21-Shaft, 22-Fan blade, 23-Roll spring, 24-Slot, 25-Fan sleeve, 3-Adjustment mechanism, 31-Sliding sleeve, 32-Clocking block, 33-Spring mounting sleeve, 34-Reset spring, 35-Abutting block, 36-Abutting sleeve, 37-Limiting wheel, 38-Shaft spring, 39-Flange, 4-Limiting component, 41-Slide groove, 42-Helical groove, 5-First sealing cover, 6-Second sealing cover, 7-Sealing soft sleeve, 8-Sponge sheet. Detailed Implementation

[0030] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0031] In this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] See Figures 1-5 The present invention provides an embodiment of a postoperative breathing training device, comprising: a housing 1, a resistance mechanism 2, an adjustment mechanism 3, and a limiting member 4. The housing 1 has an air intake channel 11 and an exhaust channel 12 on opposite sides. Further, the air intake channel 11 is provided with a sealing sleeve 7; the sealing sleeve 7 effectively reduces air leakage between the patient's mouth and the air intake channel 11. Specifically, the sealing sleeve 7 can be made of rubber. Further, the exhaust channel 12 is provided with a sponge sheet 8, and the sponge sheet 8 is detachably connected to the exhaust channel 12; installing the sponge sheet 8 in the exhaust channel 12 effectively isolates impurities from entering. The resistance mechanism 2 includes a rotating shaft 21, fan blades 22, and a spiral spring 23. The rotating shaft 21 is rotatably mounted inside the housing 1. Multiple fan blades 22 are mounted on the rotating shaft 21 and are arranged in a circular array with the axis of the rotating shaft 21 as the center. The outer end of the spiral spring 23 is fixedly mounted on the housing 1. The center end of the spiral spring 23 is mounted on the rotating shaft 21 through an adjusting mechanism 3, and the adjusting mechanism 3 can control the center end of the spiral spring 23 to rotate around the rotating shaft 21. The fan blades 22 have a groove 41 along their length. One end of the limiting member 4 is slidably mounted in the groove 41. The housing 1 has a spiral groove 42, and the other end of the limiting member 4 is slidably mounted in the groove 41.

[0034] When a patient needs to perform respiratory function training, the patient blows air into the air intake channel 11. The air in the air intake channel 11 enters the housing 1 and pushes the fan blade 22 to rotate clockwise, which in turn drives the rotating shaft 21 to rotate clockwise. The rotating shaft 21 drives the spiral spring 23 to store force, thereby applying a reverse resistance to the rotation of the fan blade 22. This means that when the patient blows air into the air intake channel 11, a certain amount of force is required to make the fan blade 22 rotate, thus achieving the effect of respiratory training. Subsequently, the air in the housing 1 is discharged through the exhaust channel 12. At this time, under the action of the spiral groove 42, the limiting member 4 slides towards the outer end of the slide groove 41.

[0035] When the patient stops blowing air, the spiral spring 23 drives the fan blade 22 to rotate and reset via the rotating shaft 21. At this time, the gas moves in the opposite direction and enters the patient's mouth, which plays a certain role in assisting breathing and thus improving the effect of respiratory function training. At this time, the two ends of the limiting member 4 slide to the center end of the spiral groove 42 and the inner end of the slide groove 41 respectively and then get stuck, thereby limiting the fan blade 22 from continuing to rotate in the opposite direction.

[0036] When it is necessary to adjust the magnitude of the reverse resistance, the center end of the spiral spring 23 is controlled to rotate in the opposite direction around the shaft 21 by the adjusting mechanism 3; the more coils of the spiral spring 23, the greater the reverse resistance. When the reverse resistance increases, the limiting member 4 can effectively prevent the reverse resistance from not increasing; the fewer coils of the spiral spring 23, the smaller the reverse resistance. Thus, the magnitude of the reverse resistance can be reasonably adjusted according to the patient's recovery.

[0037] See Figures 1-5 In other embodiments, the adjustment mechanism 3 includes a sliding sleeve 31 and a locking block 32. The sliding sleeve 31 is sleeved on the rotating shaft 21, one end of the rotating shaft 21 passes through the housing 1, and the sliding sleeve 31 is located outside the housing 1. The center end of the spiral spring 23 is installed on the sliding sleeve 31. Multiple locking blocks 32 are fixedly installed inside the sliding sleeve 31, and the multiple locking blocks 32 are arranged in a circular array around the axis of the sliding sleeve 31. One end of the rotating shaft 21 is provided with multiple locking grooves 24 that cooperate with the locking blocks 32. In practice, the sliding sleeve 31 is pulled so that the locking block 32 inside the sliding sleeve 31 slides out of the slot 24 on the rotating shaft 21. Then the sliding sleeve 31 is rotated, and the sliding sleeve 31 drives the center end of the spiral spring 23 to rotate around the rotating shaft 21, thereby adjusting the number of turns of the spiral spring 23 and thus adjusting the magnitude of the reverse resistance. After adjustment, the sliding sleeve 31 is pressed so that the locking block 32 is engaged in the nearest slot 24, thereby fixing the center end of the spiral spring 23 on the rotating shaft 21, so that the rotating shaft 21 can drive the spiral spring 23 to move.

[0038] See Figures 1-5 In other embodiments, the adjusting mechanism 3 further includes a spring mounting sleeve 33. The center end of the spiral spring 23 is fixedly installed inside the spring mounting sleeve 33. The spring mounting sleeve 33 is sleeved on the outside of the sliding sleeve 31, and the spring mounting sleeve 33 can slide in the axial direction of the sliding sleeve 31. In specific implementation, the spring mounting sleeve 33 can slide on the sliding sleeve 31 but cannot rotate around the sliding sleeve 31, so that when the sliding sleeve 31 is pulled, the center end of the spiral spring 23 will not be pulled out as the sliding sleeve 31 slides.

[0039] See Figures 1-5In other embodiments, a return spring 34 is also included. A stop block 35 is provided at one end of the rotating shaft 21 near the sliding sleeve 31, and a stop sleeve 36 is provided at the other end of the sliding sleeve 31 away from the stop block 35. The return spring 34 is sleeved on the rotating shaft 21, with one end of the return spring 34 abutting against the stop block 35 and the other end abutting against the stop sleeve 36. In specific implementation, pulling the sliding sleeve 31 causes the stop sleeve 36 and the stop block 35 to simultaneously compress the return spring 34. When released, the spring, under its elastic force, pushes the sliding sleeve 31 back to its original position, allowing the locking block 32 to automatically engage with the slot 24.

[0040] See Figures 1-5 In other embodiments, the adjustment mechanism 3 further includes a limiting wheel 37. The end of the rotating shaft 21 away from the sliding sleeve 31 passes through the housing 1, and the limiting wheel 37 is fixedly installed at the end of the rotating shaft 21 away from the sliding sleeve 31. The outer contour of the limiting wheel 37 is provided with a plurality of grooves, and the housing 1 is provided with a wheel groove 13 that cooperates with the limiting wheel 37. A plurality of fan blades 22 are installed on the rotating shaft 21 through fan sleeves 25, and the fan sleeves 25 can slide on the rotating shaft 21 along the axial direction of the rotating shaft 21. In practice, the fan sleeve 25 can only slide on the rotating shaft 21 and cannot rotate on the rotating shaft 21; when the sliding sleeve 31 is pulled, the sliding sleeve 31 drives the rotating shaft 21 to move while sliding, so that the rotating shaft 21 drives the limiting wheel 37 to be locked into the wheel groove 13, and the groove prevents the limiting wheel 37 from rotating; thus the rotating shaft 21 cannot rotate in either direction, so that no matter whether the sliding sleeve 31 rotates in either direction, it cannot drive the rotating shaft 21 to rotate; thus, when the reverse resistance is reduced, the rotating shaft 21 will not rotate in the forward direction with the forward rotation of the sliding sleeve 31.

[0041] See Figures 1-5 In other embodiments, a first sealing cover 5 is also included; the first sealing cover 5 is detachably connected to the housing 1, the spiral spring 23 is located inside the first sealing cover 5, and the sliding sleeve 31 passes through the first sealing sleeve. The spiral spring 23 is isolated by the first sealing sleeve; furthermore, a second sealing cover 6 is also included, the second sealing cover 6 is detachably connected to the housing 1, and the limiting wheel 37 is located inside the second sealing cover 6. The limiting wheel 37 is isolated and protected by the second sealing cover 6.

[0042] See Figures 1-5 In another embodiment, the adjusting mechanism 3 further includes a pivot spring 38 and a flange 39. The pivot spring 38 is sleeved on the pivot shaft 21, with one end of the pivot spring 38 abutting against the flange 39 and the other end of the pivot spring 38 abutting against the housing 1. The pivot spring 38 can drive the pivot shaft 21 to return to its original position. In specific implementation, when the sliding sleeve 31 is pulled, the sliding sleeve 31 moves the pivot shaft 21 while sliding. The pivot shaft 21 compresses the pivot spring 38 through the flange 39. When the sliding sleeve 31 is released, the pivot spring 38 can drive the pivot shaft 21 to return to its original position.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered within the scope of the claims and specification of the present invention.

Claims

1. A post-operative respiratory training device, characterized in that, The utility model provides a kind of air resistance adjusting device, including: Shell, the shell is equipped with air inlet channel and exhaust channel respectively to two sides of facing each other; Resistance mechanism, the resistance mechanism includes rotating shaft, fan leaf and scroll spring;The rotating shaft is rotatably installed in the shell, a plurality of the fan leaf is installed on the rotating shaft, and a plurality of the fan leaf is circular array with the axis of the rotating shaft as center;The outer end of the scroll spring is fixedly installed on the shell; Adjusting mechanism, the center end of the scroll spring is installed on the rotating shaft by adjusting mechanism, and the adjusting mechanism can control the center end of the scroll spring rotates around the rotating shaft;And Limiting piece, the length direction of the fan leaf is equipped with sliding slot, one end of the limiting piece is slidably installed in the sliding slot, and the other end of the limiting piece is slidably installed in the sliding slot; The adjusting mechanism includes sliding sleeve and clamping block, the sliding sleeve is sleeved on the rotating shaft, one end of the rotating shaft penetrates the shell, and the sliding sleeve is located outside the shell;The center end of the scroll spring is installed on the sliding sleeve;A plurality of the clamping block is fixedly installed in the sliding sleeve, and a plurality of the clamping block is circular array with the axis of the sliding sleeve, one end of the rotating shaft is equipped with a plurality of clamping grooves matched with the clamping block.

2. A post-operative respiratory training device according to claim 1, wherein, The adjusting mechanism further includes spring mounting sleeve, the center end of the scroll spring is fixedly installed in the spring mounting sleeve, the spring mounting sleeve is sleeved outside the sliding sleeve, and the spring mounting sleeve can slide in the axis direction of the sliding sleeve.

3. The postoperative respiratory training device of claim 1, wherein, Further including return spring, one end of the rotating shaft close to the sliding sleeve is equipped with abutting block, the other end of the sliding sleeve away from the abutting block is equipped with abutting sleeve, the return spring is sleeved on the rotating shaft, one end of the return spring is in abutment with the abutting block, and the other end of the return spring is in abutment with the abutting sleeve.

4. The post-operative respiratory training device of claim 1, wherein, The adjusting mechanism further includes limiting wheel, one end of the rotating shaft away from the sliding sleeve penetrates the shell, and the limiting wheel is fixedly installed on one end of the rotating shaft away from the sliding sleeve;The limiting wheel is uniformly equipped with a plurality of recesses on the outer contour, and the shell is equipped with wheel groove matched with the limiting wheel;A plurality of the fan leaf is installed on the rotating shaft by fan sleeve, and the fan sleeve can slide on the rotating shaft in the axis direction of the rotating shaft.

5. The post-operative respiratory training device of claim 1, wherein, Further including first closed cover;The first closed cover is detachably connected with the shell, the scroll spring is located in the first closed cover, and the sliding sleeve penetrates the first closed sleeve.

6. A post-operative respiratory training device according to claim 4, wherein, Further including second closed cover, the second closed cover is detachably connected with the shell, and the limiting wheel is located in the second closed cover.

7. The post-operative respiratory training device of claim 4, wherein, The adjusting mechanism further includes rotating shaft spring and flange;The rotating shaft spring is sleeved on the rotating shaft, one end of the rotating shaft spring is in abutment with the flange, the other end of the rotating shaft spring is in abutment with the shell, and the rotating shaft spring can drive the rotating shaft to reset.

8. The post-operative respiratory training device of claim 1, wherein, The air inlet channel is equipped with plugging soft sleeve.

9. The post-operative respiratory training device of claim 1, wherein, The exhaust channel is equipped with sponge sheet, and the sponge sheet is detachably connected with the exhaust channel.

Citation Information

Patent Citations

  • Respiratory nursing lung function rehabilitation training device

    CN212016630U

  • Resistance regulating structure of simple chest-developer

    CN2620556Y

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