A cardiopulmonary rehabilitation device that is easy for bedridden patients to use

Abstract

This invention relates to the field of rehabilitation equipment technology, and more particularly to a cardiopulmonary rehabilitation device convenient for bedridden patients. It includes a fixed connecting seat attached to the bed, an angle deflection rod rotatably connected to the fixed connecting seat, and an adjustment mechanism connected to the angle deflection rod for adaptability during training for different patients and at different stages of rehabilitation. Foot pedal components are rotatably connected to both sides of the adjustment mechanism, and each foot pedal component is connected to a calf massager. This invention, through the cooperation of the fixed connecting seat, the angle deflection rod, and the adjustment mechanism, allows for adjustment of height, length, angle, and resistance during training, ensuring a high degree of adaptation to the patient's condition. The foot pedal components and calf massagers automatically guide the foot to complete dorsiflexion-plantar flexion movements and provide auxiliary calf massage during training, which is beneficial to the patient's recovery and reduces rehabilitation time. This solves the technical problem of low adaptability in existing training devices.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation equipment technology, and in particular to a cardiopulmonary rehabilitation device that is easy for bedridden patients to use. Background Technology

[0002] Cardiopulmonary rehabilitation is a comprehensive intervention program for patients with cardiopulmonary diseases (such as coronary heart disease, heart failure, COPD, etc.) or postoperative patients, aiming to improve their cardiopulmonary function, exercise tolerance, and quality of life. Prolonged bed rest can lead to severe deterioration of cardiopulmonary function. When bedridden, the amount of muscle movement throughout the body is very limited, metabolism slows down, and energy metabolism and blood oxygen demand decrease, leading to a reduction in the amount of blood the heart needs to pump, resulting in decreased cardiac and pulmonary function. However, due to treatment needs or the patient's own mobility limitations, prolonged bed rest is difficult to avoid. To improve the immunity of bedridden patients, hospital staff will provide guidance and conduct relevant rehabilitation exercises in bed to improve cardiopulmonary function and enhance immunity.

[0003] However, manual guidance requires experienced personnel and a certain level of understanding from the patient to achieve good rehabilitation results. In practice, patients are prone to performing the movements incorrectly, which can lead to poor cardiopulmonary rehabilitation outcomes.

[0004] A search revealed Chinese patent CN 221358358 U, which discloses a cardiopulmonary function training device. This device includes a base, a stool, a connecting frame, a movable shaft, two foot pedals, and a stretching assembly. The stretching assembly comprises a fixed plate, two pull rings, two limiting rods, two return springs, two sliding rods, and connecting pieces. The fixed plate is fixedly connected to the base and located above it. The two sliding rods are respectively positioned within corresponding limiting grooves, and are slidably connected to their respective sliding rods, each sleeved on the outer wall of the sliding rod. The two ends of each return spring are fixedly connected to the fixed plate and the corresponding sliding sleeve. The two pull rings are fixedly connected to their respective limiting rods and located below them. The connecting pieces are connected to the two limiting rods. This structure enables patients to perform upper and lower limb physical function training, which is beneficial for patient recovery and reduces rehabilitation time.

[0005] The exercise devices in the prior art can simulate cycling by stepping on pedals, but they are difficult to adapt to the training needs of patients with different leg lengths and at different stages of rehabilitation, resulting in poor training effects or poor comfort; and they neglect the exercise of the feet and the auxiliary massage of the calf muscles during exercise, which is not conducive to promoting blood circulation in the lower limbs and preventing deep vein thrombosis. Summary of the Invention

[0006] In view of the technical problems of the existing exercise devices that cannot adapt to the training needs of different patients and different rehabilitation stages, and the lack of techniques for foot exercise and calf massage, this application aims to provide a cardiopulmonary rehabilitation device convenient for bedridden patients. Through the mutual cooperation among the fixed connection seat, the angle deflection rod, and the adjustment mechanism, the adjustment of height, length, angle, and resistance magnitude during the training process can be achieved, making it highly adaptable to the patient's condition. And through the settings of the foot pedal assembly and the calf massage component, the foot can be automatically guided to complete dorsiflexion - plantar flexion movements and the calf can be assisted in massage during the training process, which is beneficial to the patient's recovery and reduces the patient's rehabilitation time.

[0007] To achieve the above technical objectives, the technical solution adopted by the present invention is: This application provides a cardiopulmonary rehabilitation device convenient for bedridden patients, including a fixed connection seat connected to the bed body. An angle deflection rod is rotatably connected to the fixed connection seat, and an adjustment mechanism for adaptability during the training process of different patients and different rehabilitation stages is connected to the angle deflection rod. The two sides of the adjustment mechanism are rotatably connected with foot pedal assemblies, and a calf massage component is connected to each foot pedal assembly.

[0008] Further, the fixed connection seat includes two fixed seats and a connection seat. A support rod is connected to each fixed seat, and the ends of the support rods are both connected to the connection seat. A set of limit posts is arranged on the connection seat.

[0009] Specifically, the fixed seat has a "C" - shaped structure, and a screwing screw is arranged on the fixed seat. Through the screwing screw, the fixed seat can be fixed to the bed body. The two ends of the support rod are respectively connected to the fixed seat and the connection seat by bolts, and the angle adjustment of the support rods can be achieved. After adjustment, the fixation of the support rods can be realized.

[0010] Furthermore, a set of limit grooves is opened at one end of the angle deflection rod close to the connection seat. The limit grooves cooperate with the limit posts. The angle deflection rod has an "L" - shaped structure, the limit grooves have a "crescent" - shaped structure, and the limit grooves and the limit posts are in sliding fit.

[0011] Further, the adjustment mechanism includes a fixed disk and a rotating shaft rotatably connected to the fixed disk. A resistance adjustment part is arranged between the fixed disk and the rotating shaft. The two ends of the rotating shaft are both slidably connected with cranks, and a length adjustment part is connected to the fixed disk.

[0012] Specifically, the crank has an "L" - shaped structure.

[0013] Furthermore, the length adjustment part includes a sleeve connected to the angle deflection rod and a rod sleeve connected to the fixed disk. The rod sleeve is sleeved in the sleeve, and an anti - detachment bolt is arranged between the sleeve and the rod sleeve. A first spring is sleeved on the rod sleeve.

[0014] It should be noted that one end of the sleeve has a sliding groove, and the other end is fitted into the angle deflection rod. The length of the sleeve can be adjusted and then fixed by a fixing screw. The end of the sleeve rod near the sleeve also has a sliding groove, and the anti-loosening bolt is slidably set in the sliding groove.

[0015] Furthermore, the technical solution includes a resistance adjustment component comprising a resistance block disposed between the fixed disk and the rotating shaft, and a plurality of resistance adjustment screws threadedly connected to the fixed disk, wherein the end of each resistance adjustment screw is rotatably connected to the resistance block.

[0016] Furthermore, the technical solution includes an adjusting handwheel threadedly connected to the end of the rotating shaft. The end of the adjusting handwheel abuts against the crank. A second spring is fitted onto the end of the crank away from the pedal assembly, and the end of the second spring is connected to the rotating shaft.

[0017] Further, the foot pedal assembly includes a connecting frame that is rotatably connected to the crank. From top to bottom, the connecting frame is provided with a forefoot pressure plate, an air bladder, and a rear heel support plate. A spring three is provided between the forefoot pressure plate and the connecting frame. A piston rod is connected to the rear heel support plate. The piston rod is slidably connected to the connecting frame and a spring four is sleeved on the piston rod. One end of the spring four is connected to the rear heel support plate and the other end is connected to the connecting frame. A piston cylinder that cooperates with the piston rod is connected to the connecting frame.

[0018] In detail, the connecting frame includes a mounting plate that connects to the forefoot pressure plate, airbag, and heel support plate, as well as a footrest connected to the mounting plate.

[0019] Furthermore, the technical solution includes an air supply pipe connecting the airbag and the piston cylinder, with a massage sleeve connected to the end of the air supply pipe. The massage sleeve has multiple massage protrusions, and the two ends of the massage sleeve are connected by connectors.

[0020] Compared with the prior art, the beneficial effects of the present invention are: This invention allows for height adjustment of the rehabilitation device by fixing the angle between the support rods in the connecting seat. The length of the device can be adjusted by connecting the angle deflection rod to the sleeve, thus facilitating rehabilitation training for different patients. Furthermore, the rotational connection between the angle deflection rod and the connecting seat allows the patient to swing their body during exercise, preventing pressure sores caused by prolonged bed rest. Simultaneously, the cooperation of the limiting groove and limiting post limits the swing angle within a safe range, preventing excessive rotation and loss of the exercise position.

[0021] This invention uses a resistance adjustment component and a crank, a rotating shaft and an adjustment handwheel to adjust the length of the crank, thereby adjusting the rotational resistance of the foot pedal exercise according to the training needs of the patient at different stages, so as to adapt it to the training requirements of different stages and thus help improve the training effect.

[0022] This invention, through the inclusion of a second spring on the crank, allows the patient to dynamically adjust the crank length during pedaling training, thereby improving the smoothness and overall experience. The sleeve and lever are dynamically slidable via an anti-loosening bolt, and with the assistance of the first spring, the range of motion of the patient's knee joint is increased during pedaling training, further enhancing the effectiveness of cardiopulmonary rehabilitation training.

[0023] This invention utilizes the initial setting of the forefoot pressure plate being higher than the heel support plate and air bladder, enabling patients to achieve dorsiflexion and plantarflexion of the forefoot during foot training, thereby simulating normal gait foot movements and achieving the technical purpose of counteracting foot drop.

[0024] This invention utilizes the force exerted by the patient's foot on the forefoot pressure plate during foot training. This force drives gas from the air bladder through the air delivery tube to the piston cylinder and massage sleeve, thereby achieving plantar flexion movement and inflating and massaging the calf muscles. Furthermore, by exercising the cardiovascular system, it effectively promotes lower limb blood circulation and prevents complications. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram illustrating the usage state of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a perspective view of the overall structure of the present invention; Figure 4 This is a perspective view of the connector structure of the present invention; Figure 5 This is a perspective view of the angle deflection rod structure of the present invention; Figure 6 This is a diagram showing the connection relationship between the fixed disc and the length adjusting component of the present invention. Figure 7 For the present invention Figure 6 Top view; Figure 8 For the present invention Figure 7 Sectional view along the AA direction; Figure 9 This is a perspective view of the rotating shaft structure of the present invention; Figure 10 This is a perspective view of the sleeve structure of the present invention; Figure 11 This is a perspective view of the foot pedal assembly structure of the present invention; Figure 12 For the present invention Figure 11 The main view; Figure 13 For the present invention Figure 12 Sectional view along the BB direction; Figure 14 This is a three-dimensional view of the massage sleeve structure of the present invention; In the diagram: 1. Fixed connecting seat; 11. Fixed seat; 12. Connecting seat; 13. Support rod; 14. Limiting post; 2. Angle deflection rod; 21. Limiting groove; 3. Adjusting mechanism; 31. Fixed plate; 32. Rotating shaft; 33. Resistance adjusting component; 331. Resistance block; 332. Resistance adjusting screw; 34. Crank; 35. Length adjusting component; 351. Sleeve; 352. Sleeve rod; 353. Anti-detachment bolt; 354. Spring 1; 36. Adjusting handwheel; 37. Spring 2; 4. Foot pedal assembly; 41. Connecting frame; 42. Forefoot pressure plate; 43. Airbag; 44. Heel support plate; 45. Spring 3; 46. Piston rod; 47. Spring 4; 48. Piston cylinder; 5. Calf massage component; 51. Air supply pipe; 52. Massage sleeve. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions of the present invention, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "front end", "rear end", "inner side", "outer side", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not 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.

[0029] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] Example 1 This application provides a cardiopulmonary rehabilitation device that is easy for bedridden patients to use, including a fixed connecting seat 1, an angle deflection rod 2, an adjustment mechanism 3, a foot pedal assembly 4, and a calf massage component 5.

[0031] The fixed connecting seat 1 is used to securely install the entire device onto the bed frame. Specifically, as shown... Figure 1-4 As shown, the fixed connecting seat 1 includes two fixed seats 11 and one connecting seat 12. Each fixed seat 11 is connected to a support rod 13, and the ends of the support rods 13 are connected to the connecting seat 12. A set of limiting posts 14 are provided on the connecting seat 12.

[0032] As an example, to accommodate different bed thicknesses and for secure mounting to the bed, a screw is installed on the mounting base 11. Tightening the screw secures the mounting base 11 to the bed. The support rod 13 is connected to the mounting base 11 and the connecting seat 12 at both ends by bolts. During installation, the angle between the support rods 13 can be adjusted by rotating them as needed, thereby adjusting the overall height of the device. After the height is adjusted, the support rod 13 is locked to the mounting base 11 and the connecting seat 12 with bolts to ensure the stability of the entire device.

[0033] Furthermore, one end of the angle deflection rod 2 is rotatably connected to the connecting seat 12. Specifically, refer to... Figure 4-5 As shown, the angle deflection rod 2 has a set of limiting grooves 21 at one end near the connecting seat 12, which cooperate with the limiting post 14. The cooperation between the limiting groove 21 and the limiting post 14 can control the left and right deflection angle of the angle deflection rod 2, thereby allowing the patient to swing their body left and right during foot pedal training, avoiding pressure sores caused by prolonged bed rest. The other end of the angle deflection rod 2 is sleeved with the adjustment mechanism 3. The length of the adjustment mechanism 3 can be adjusted and fixed after adjustment by fixing screws, which facilitates the adjustment of the position of the foot pedal assembly 4.

[0034] The adjusting mechanism 3 is connected to the end of the angle deflection rod 2 furthest from the connecting seat 12. (Refer to...) Figure 1-3 As shown in Figure 6-11, the adjustment mechanism 3 is the core adjustment part of the entire device, used to adapt to the training needs of different patients and different stages of rehabilitation. As shown in the figure, the adjustment mechanism 3 includes a fixed plate 31, a rotating shaft 32, a crank 34, a length adjustment component 35, and an adjustment handwheel 36.

[0035] Specifically, the adjustment mechanism 3 includes a fixed plate 31 and a rotating shaft 32 rotatably connected to the fixed plate 31. Both ends of the rotating shaft 32 are slidably connected to cranks 34, and the end of the rotating shaft 32 is threadedly connected to an adjustment handwheel 36. The end of the adjustment handwheel 36 abuts against the cranks 34. Rotating the adjustment handwheel 36 loosens the cranks 34, allowing them to move back and forth along the rotating shaft 32, thereby changing the length of the cranks 34. Then, tightening the adjustment handwheel 36 fixes the cranks 34, thus adjusting the pedal resistance to adapt to different stages of cardiopulmonary rehabilitation training.

[0036] Furthermore, a length adjusting component 35 is connected to the fixed plate 31. The length adjusting component 35 includes a sleeve 351 connected to the angle deflection rod 2 and a sleeve rod 352 connected to the fixed plate 31. The sleeve rod 352 is sleeved inside the sleeve 351, and an anti-loosening bolt 353 is provided between the sleeve 351 and the sleeve rod 352. A spring 354 is sleeved on the sleeve rod 352.

[0037] The length adjustment component 35 serves two purposes. First, it facilitates leg flexion training for patients. When the patient places both feet on the foot pedal assembly 4, stepping on it causes the sleeve rod 352 to slide along the sleeve 351. At this time, the spring 354 is compressed. During the leg flexion process, the spring 354 returns to its original position, assisting the patient in leg flexion training. Second, during foot pedal rotation training, the sleeve 351 and sleeve rod 352 achieve dynamic sliding through the anti-loosening bolt 353, and with the cooperation of the spring 354, the range of motion of the patient's knee joint increases during foot pedal training, thereby helping to improve the effect of cardiopulmonary rehabilitation training.

[0038] In this embodiment, refer to Figure 11-14 As shown, the pedal assembly 4 includes a connecting frame 41 that is rotatably connected to the crank 34. From top to bottom, the connecting frame 41 is provided with a forefoot pressure plate 42, an airbag 43, and a rear heel support plate 44. A spring 45 is provided between the forefoot pressure plate 42 and the connecting frame 41. A piston rod 46 is connected to the rear heel support plate 44. The piston rod 46 is slidably connected to the connecting frame 41, and a spring 47 is sleeved on the piston rod 46. One end of the spring 47 is connected to the rear heel support plate 44, and the other end is connected to the connecting frame 41. A piston cylinder 48 that cooperates with the piston rod 46 is connected to the connecting frame 41.

[0039] Furthermore, the calf massager 5 includes an air supply pipe 51 connecting the airbag 43 and the piston cylinder 48, and a massage sleeve 52 is connected to the end of the air supply pipe 51.

[0040] As an example, the two ends of the massage sleeve 52 are connected by a connector, which can be Velcro, but is not limited to Velcro, or it can be a strap.

[0041] The patient places their foot into the foot pedal assembly 4, with the ball of their foot resting on the forefoot pressure plate 42 and their heel on the heel support plate 44, resulting in a dorsiflexed foot position. The massage sleeve 52 is then placed on the calf. The patient begins pedaling, rotating the crank 34 and the rotating shaft 32. During pedaling, the ball of the foot presses down on the forefoot pressure plate 42, compressing the spring 3 45. When the forefoot pressure plate 42, the air bladder 43, and the heel support plate 44 are on the same horizontal plane, continued pedaling compresses the air bladder 43. A portion of the gas in the air bladder 43 enters the massage sleeve 52 through the air inlet tube 51, providing a rhythmic inflated massage to the calf. Another part enters the piston cylinder 48, pushing the piston rod 46 to move the heel support plate 44 away from the piston cylinder 48. At this time, the spring 47 is compressed, and the movement of the heel support plate 44 causes the patient's foot to perform plantar flexion, thereby achieving dorsiflexion-plantar flexion cycle training, which helps to prevent foot drop.

[0042] Example 2 Based on Example 1, in order to further adjust the resistance during the patient's foot pedal rotation training, a resistance adjustment component 33 is provided between the fixed plate 31 and the rotating shaft 32 to adjust the friction force when the rotating shaft 32 rotates, i.e., the training resistance.

[0043] In this embodiment, the resistance adjustment component 33 includes at least one resistance block 331 and multiple resistance adjustment screws 332. The resistance block 331 is disposed between the inner wall of the fixed disk 31 and the outer wall of the rotating shaft 32. The multiple resistance adjustment screws 332 are threadedly connected to the side wall of the fixed disk 31, and the end of each resistance adjustment screw 332 extends into the interior of the fixed disk 31 and is rotatably connected to the corresponding resistance block 331. By rotating the resistance adjustment screw 332, the resistance block 331 can be driven closer to or further away from the rotating shaft 32, thereby changing the clamping force on the rotating shaft 32 and realizing stepless adjustment of the rotational resistance. This adapts to the training requirements of different stages, thereby helping to improve the training effect.

[0044] Example 3 Based on Embodiment 1 and Embodiment 2, in order to achieve dynamic adjustment of resistance during patient training and facilitate smoother and more successful foot pedal rotation training, a second spring 37 is fitted at the end of the crank 34 away from the foot pedal assembly 4, and the end of the second spring 37 is connected to the rotating shaft 32.

[0045] During cardiopulmonary training, the adjustment handwheel 36 is turned open, and during the foot pedal rotation training, the crank 34 moves back and forth along the rotation axis 32 under the action of the second spring 37, thus making the patient's training more comfortable and smooth.

[0046] Specifically, during the pedal rotation training, the left pedal assembly 4 drives the corresponding crank 34 to move closer to the pedal assembly 4, thereby lengthening the left crank 34 and compressing the second spring 37 on the left crank 34. The lengthening of the crank 34 makes it easier and smoother to step down on the left pedal assembly 4, and then the second spring 37 returns to its original position.

[0047] Then, the right foot applies force to the right foot pedal assembly 4, causing the corresponding crank 34 to move closer to the foot pedal assembly 4. This extends the right crank 34, compressing the spring 37 on the right crank 34. This cycle repeats, making the patient's foot pedal rotation movement smoother and easier, thus improving the patient's experience during training.

[0048] Specific application examples The following describes the specific application of a cardiopulmonary rehabilitation device that is easy for bedridden patients to use in the process of lower limb cycling training in cardiopulmonary rehabilitation, in conjunction with Embodiment 1, Embodiment 2 and Embodiment 3.

[0049] Lower limb cycling has become a cornerstone of cardiopulmonary rehabilitation because, through the regular movement of large muscle groups, it simultaneously trains the heart's pumping capacity, the vasomotor regulation capacity, and the muscles' oxygen uptake capacity in a relatively safe hemodynamic environment. This is a training method that comprehensively optimizes the entire system from the core (heart) to the periphery (blood vessels, muscles).

[0050] In the specific application of the cardiopulmonary rehabilitation device that is easy for bedridden patients to use, the device is fixed to the rear of the bed through the fixed connecting seat 1, and the height and length are adjusted to suit the patient.

[0051] When the patient lying on the bed places both feet on the foot pedal assembly 4 and puts the massage sleeve 52 on the patient's calves, the patient can first perform leg bending exercises in the early stage of training.

[0052] By stepping on the foot pedal assembly 4, the sleeve rod 352 is driven to slide along the sleeve 351. At this time, the spring 354 is compressed. During the patient's leg flexion, the spring 354 returns to its original position, assisting the patient in leg flexion training.

[0053] As the training intensity increases, foot pedal rotation training can be performed. In the initial stage, the drive resistance block 331 can be adjusted away from the rotating shaft 32, thereby changing the clamping force on the rotating shaft 32, reducing the friction of the drive resistance block 331 on the rotating shaft 32, and reducing its resistance. At the same time, the adjustment handwheel 36 can be turned off.

[0054] During pedal rotation training, the left pedal assembly 4 drives the corresponding crank 34 to move closer to the pedal assembly 4, thereby extending the left crank 34. The second spring 37 on the left crank 34 is compressed. The lengthening of the crank 34 makes it easier and smoother to step down on the left pedal assembly 4. Then the second spring 37 returns to its original position.

[0055] Then, the right foot applies force to the right foot pedal assembly 4, causing the corresponding crank 34 to move closer to the foot pedal assembly 4. This extends the right crank 34, compressing the spring 37 on the right crank 34. This cycle repeats, making the patient's foot pedal rotation movement smoother and easier, thus improving the patient's experience during training.

[0056] During training, the forefoot rests on the forefoot pressure plate 42, and the heel rests on the heel support plate 44, with the foot in a dorsiflexed position. The massage sleeve 52 is then placed on the calf. The patient begins pedaling, causing the crank 34 and the rotating shaft 32 to rotate. During pedaling, the forefoot presses down on the forefoot pressure plate 42, compressing the spring 45. When the forefoot pressure plate 42, air bladder 43, and heel support plate 44 are on the same horizontal plane, continued pedaling compresses the air bladder 43. Part of the gas in the air bladder 43 enters the massage sleeve 52 through the air inlet tube 51, providing a rhythmic inflation massage to the calf. The other part enters the piston cylinder 48, pushing the piston rod 46 to move the heel support plate 44 away from the piston cylinder 48. At this time, the spring 47 is compressed, and the movement of the heel support plate 44 causes the patient's foot to plantarflex, thus achieving dorsiflexion-plantarflexion cycle training, which helps prevent foot drop.

[0057] Meanwhile, the sleeve 351 and the sleeve rod 352 achieve dynamic sliding through the anti-loosening bolt 353, and with the cooperation of the spring 354, the range of motion of the patient's knee joint increases during the foot pedal training, which helps to improve the effect of cardiopulmonary rehabilitation training.

[0058] Later, the crank 34 is moved back and forth along the rotation axis 32 to change its length. Then, the adjusting handwheel 36 is tightened to fix the crank 34, thus adjusting the pedal resistance to adapt to different stages of cardiopulmonary rehabilitation training. Additionally, by adjusting the drive resistance block 331 closer to the rotation axis 32, the pressure on the rotation axis 32 is changed, increasing the friction between the drive resistance block 331 and the rotation axis 32, thereby increasing the resistance and enhancing the training intensity of the pedal rotation.

[0059] It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this invention, and these should also be considered within the scope of protection of this invention. These modifications and improvements will not affect the effectiveness of the invention or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A cardiopulmonary rehabilitation device convenient for bedridden patients, comprising a fixed connecting seat (1) connected to the bed, characterized in that: An angle deflection rod (2) is rotatably connected to the fixed connecting seat (1), and an adjustment mechanism (3) for the fit during training for different patients and different rehabilitation stages is connected to the angle deflection rod (2). The two sides of the adjustment mechanism (3) are rotatably connected to foot pedal components (4), and each foot pedal component (4) is connected to a calf massage component (5).

2. The cardiopulmonary rehabilitation device for bedridden patients according to claim 1, characterized in that: The fixed connecting seat (1) includes two fixed seats (11) and one connecting seat (12). Each fixed seat (11) is connected to a support rod (13). The ends of the support rods (13) are connected to the connecting seat (12). A set of limiting posts (14) are provided on the connecting seat (12).

3. The cardiopulmonary rehabilitation device for bedridden patients according to claim 2, characterized in that: An angle deflection rod (2) has a set of limiting grooves (21) at one end near the connecting seat (12), and the limiting grooves (21) cooperate with the limiting post (14).

4. The cardiopulmonary rehabilitation device for bedridden patients according to claim 1, characterized in that: The adjustment mechanism (3) includes a fixed plate (31) and a rotating shaft (32) rotatably connected to the fixed plate (31). A resistance adjustment component (33) is provided between the fixed plate (31) and the rotating shaft (32). Cranks (34) are slidably connected to both ends of the rotating shaft (32). A length adjustment component (35) is connected to the fixed plate (31).

5. A cardiopulmonary rehabilitation device for bedridden patients according to claim 4, characterized in that: The length adjustment component (35) includes a sleeve (351) connected to the angle deflection rod (2) and a sleeve rod (352) connected to the fixed plate (31). The sleeve rod (352) is sleeved inside the sleeve (351), and an anti-loosening bolt (353) is provided between the sleeve (351) and the sleeve rod (352). A spring (354) is sleeved on the sleeve rod (352).

6. A cardiopulmonary rehabilitation device for bedridden patients according to claim 5, characterized in that: The resistance adjustment component (33) includes a resistance block (331) disposed between the fixed disk (31) and the rotating shaft (32) and a plurality of resistance adjustment screws (332) threadedly connected to the fixed disk (31), the end of each resistance adjustment screw (332) being rotatably connected to the resistance block (331).

7. A cardiopulmonary rehabilitation device for bedridden patients according to claim 4, characterized in that: The end of the rotating shaft (32) is threaded with an adjusting handwheel (36), the end of the adjusting handwheel (36) abuts against the crank (34), and a second spring (37) is fitted on the end of the crank (34) away from the foot pedal assembly (4), and the end of the second spring (37) is connected to the rotating shaft (32).

8. A cardiopulmonary rehabilitation device for bedridden patients according to claim 1, characterized in that: The pedal assembly (4) includes a connecting frame (41) that is rotatably connected to the crank (34). The connecting frame (41) is provided with a forefoot pressure plate (42), an airbag (43), and a rear heel support plate (44) from top to bottom. A spring three (45) is provided between the forefoot pressure plate (42) and the connecting frame (41). A piston rod (46) is connected to the rear heel support plate (44). The piston rod (46) is slidably connected to the connecting frame (41), and a spring four (47) is sleeved on the piston rod (46). One end of the spring four (47) is connected to the rear heel support plate (44), and the other end is connected to the connecting frame (41). A piston cylinder (48) that cooperates with the piston rod (46) is connected to the connecting frame (41).

9. A cardiopulmonary rehabilitation device for bedridden patients according to claim 8, characterized in that: The calf massager (5) includes an air supply pipe (51) connecting the airbag (43) and the piston cylinder (48), and a massage sleeve (52) is connected to the end of the air supply pipe (51).

Images