A heart function rehabilitation device

Abstract

The application discloses a heart function rehabilitation device and belongs to the technical field of heart detection equipment. The device comprises a fixing seat, a fixing frame is fixedly connected to one side of the fixing seat, an opening area is arranged in the middle of the fixing frame, a first radian groove is arranged on the upper side of the fixing frame and is concave downward, a second radian groove and a third radian groove are arranged on the lower side of the fixing frame and are concave upward, the second radian groove and the third radian groove are respectively arranged on the two sides of the first radian groove, the second radian groove is adjacent to the fixing seat, a rotating frame is rotatably connected to the fixing seat, one side of the rotating frame is located on the lower side of the fixing seat, and a containing groove is formed and is concave downward. The device has the advantages of reasonable structure, accurate positioning, adaptation to left and right hands and various use modes, and solves the problems of the prior art.

Description

Technical Field

[0001] This invention belongs to the technical field of cardiac testing equipment, and particularly relates to a cardiac function rehabilitation device. Background Technology

[0002] Cardiovascular disease is a prevalent chronic disease worldwide. Cardiac rehabilitation training is a core intervention to improve patients' cardiac function, enhance their quality of life, and reduce the risk of disease recurrence. Heart rate monitoring is a crucial step in the execution of cardiac rehabilitation exercises, directly determining the control of exercise intensity, assessment of exercise safety, and tracking of rehabilitation effects. The radial artery is superficial, easy to palpate and collect signals, and its pulse signal is highly synchronized with the heartbeat, making it the preferred site for detecting heart rate and monitoring cardiac pulsation in clinical and home cardiac rehabilitation scenarios. Therefore, radial artery pulse detection auxiliary devices have become an indispensable component of cardiac rehabilitation equipment.

[0003] Currently, the radial artery pulse detection auxiliary tools used in cardiac function rehabilitation generally suffer from many defects, such as simple structure, poor fixation effect, insufficient adaptability, and low positioning accuracy, making it difficult to meet the actual needs of cardiac function rehabilitation. First, most simple auxiliary devices only have a single support structure and lack a targeted arc positioning design. The user's wrist is prone to wobbling and shifting after placement, making it impossible to accurately align with the radial artery detection point. This leads to distortion of the manual touch or sensor detection signal, affecting the accuracy of heart rate data and interfering with the scientific control of rehabilitation exercises. Second, most existing devices are only compatible with a single hand, failing to account for the differences in radial artery positioning between the left and right hands. Their versatility is extremely poor, requiring separate devices for each hand, increasing usage costs and storage difficulties. Third, conventional devices have a single usage mode, only providing simple wrist support. They cannot flexibly adjust the fixation method according to different testing scenarios, wrist sizes, and user habits. For patients with limited mobility and weak hand control during rehabilitation, operation is difficult, making it hard to complete the testing independently. Fourth, some devices lack stable clamping and positioning structures, making wrist displacement during testing. Special assistance is required for fixation, increasing the workload of medical staff or family members, reducing testing efficiency, and affecting the continuity of cardiac function rehabilitation training.

[0004] In summary, existing radial artery pulse detection auxiliary devices cannot achieve precise wrist positioning, stable fixation, and flexible adaptation, making it difficult to meet the needs of efficient, accurate, and convenient heart rate detection in cardiac rehabilitation scenarios. This restricts the standardized implementation of cardiac rehabilitation training. Therefore, developing a radial artery pulse detection auxiliary device for cardiac rehabilitation with a reasonable structure, accurate positioning, adaptability to both left and right hands, and multiple usage modes has significant clinical practical value and market application prospects. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides a cardiac function rehabilitation device with advantages such as reasonable structure, accurate positioning, adaptability to both left and right hands, and diverse usage modes, thus solving the problems of the prior art.

[0006] This invention is implemented as follows: a cardiac function rehabilitation device includes a fixed base, a fixed frame fixedly connected to one side of the fixed base, an opening area in the middle of the fixed frame, a first downwardly recessed arc groove on the upper side of the fixed frame, a second upwardly recessed arc groove and a third arc groove on the lower side of the fixed frame, the second arc groove and the third arc groove being located on opposite sides of the first arc groove, the second arc groove being adjacent to the fixed base; and a rotating frame rotatably connected to the fixed base, one side of the rotating frame being located below the fixed base and forming a downwardly recessed receiving groove.

[0007] In a preferred embodiment of the present invention, the rotating frame includes a driving part, a lower inclined part, a supporting part, and an upper inclined part that are fixedly connected in sequence, and the receiving groove is formed by the upper edges of the lower inclined part, the supporting part, and the upper inclined part; the rotating frame is provided with a first rotating shaft, which is located between the driving part and the lower inclined part and is rotatably connected to the fixed seat; one end of the lower inclined part near the driving part is located on the side of the fixed seat, and the other end extends to the outer edge of the fixed seat.

[0008] As a preferred embodiment of the present invention, the driving part is provided with a sliding hole, the fixed seat is provided with an arc-shaped hole, the fixed seat is provided with a second rotating shaft, the second rotating shaft is connected to a gear, the side of the gear is fixedly connected to a lever, the lever is slidably connected to the arc-shaped hole, and the lever is located in the sliding hole.

[0009] As a preferred embodiment of the present invention, a positioning spring is fixedly connected to the fixed base, and the positioning spring is inserted into the tooth groove of the gear.

[0010] As a preferred embodiment of the present invention, the fixed frame is provided with a slide rail arranged along the trajectory of the fixed frame; a third rotating shaft is provided in the slide rail, the third rotating shaft can roll or slide in the slide rail, and a roller body is fixedly connected to the third rotating shaft, the upper edge of the roller body being higher than the upper edge of the fixed frame.

[0011] As a preferred embodiment of the present invention, the end of the third rotating shaft is provided with a threaded groove, and the edge of the threaded groove is connected to an expansion groove, and a frustum-shaped or conical screw is connected in the threaded groove.

[0012] As a preferred embodiment of the present invention, the surface of the roller body is provided with a mounting groove.

[0013] As a preferred embodiment of the present invention, when the mounting grooves on the two rollers are aligned, a load-bearing buffer, such as a rubber sheet, can be inserted to provide adequate support.

[0014] As a preferred embodiment of the present invention, the rotating frame is provided with a plurality of auxiliary support rods in the middle, the auxiliary support rods are spaced apart, the ends of the auxiliary support rods are aligned with the rotating frame and connected by a fixing rod.

[0015] In a preferred embodiment of the present invention, a rotating ring is rotatably connected to the fixed rod, the outer edge of the rotating ring protruding from the rotating frame and the auxiliary bearing rod, and the rotating ring is located in the gap.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. This invention achieves flexible switching between three different usage modes by setting a first arc groove, a second arc groove, and a third arc groove with different distributions on the fixed frame, combined with the flip-adjustable function of the rotating frame. It is suitable for various cardiac function rehabilitation scenarios such as rapid detection, accurate long-term monitoring, and special body position detection, which solves the defect of the single usage mode of the existing device and improves the scenario adaptability of the device.

[0018] 2. This invention adapts the second and third arc grooves to the physiological arc of the radius of the left and right hands respectively, enabling precise positioning of the radial artery in the left and right hands without changing the device. This solves the problems of poor universality of existing devices and the need to equip separate devices for the left and right hands, reducing the cost of use and storage difficulty, and improving the universality of the device.

[0019] 3. This invention achieves precise adjustment and stable locking of the rotating frame's flip angle by setting up a linkage structure of gears, levers, and positioning springs. Users can flexibly adjust the opening and closing degree according to their own wrist size and detection posture, and no additional locking tools are required. The operation can be completed manually, making it suitable for patients with limited mobility and weak hand control during the rehabilitation period to operate independently. It solves the shortcomings of existing devices that are difficult to operate and require special assistance.

[0020] 4. By setting up a sliding and adjustable roller body and matching threaded groove, expansion groove and screw structure, the present invention can not only flexibly adapt to the positioning needs of wrists of different thicknesses, but also achieve stable locking of the roller body position. At the same time, the mounting groove on the roller body surface can be adapted to the installation of detection devices or the insertion of load-bearing buffers, further improving the adaptability and detection convenience of the device, and making up for the problems of insufficient positioning accuracy and limited adaptability of existing devices.

[0021] 5. This invention forms a hollow, ventilated support frame by setting an auxiliary support rod and a rotating ring structure in the middle of the rotating frame. This not only ensures air circulation under the wrist and avoids stuffiness and sweating from prolonged wear, but also converts sliding friction into rolling friction, reducing frictional resistance when taking the wrist off and on, avoiding skin scratches, and improving wearing comfort and safety. It is suitable for long-term testing by patients in the recovery period.

[0022] 6. The invention has a reasonable overall structural design and uses a purely mechanical structure to achieve positioning, fixation and adjustment without the need for additional power. It is stable, easy to operate and has a long service life. It can meet the convenient testing needs of home scenarios and also adapt to the batch testing needs of medical institutions and rehabilitation centers. It has high clinical practical value and market application prospects, and effectively promotes the standardized development of cardiac function rehabilitation training. Attached Figure Description

[0023] Figure 1 This is a first-view three-dimensional structural diagram of the cardiac function rehabilitation device provided in an embodiment of the present invention;

[0024] Figure 2 This is a second-view three-dimensional structural diagram of the cardiac function rehabilitation device provided in an embodiment of the present invention;

[0025] Figure 3 This is provided by the embodiments of the present invention. Figure 2 A magnified structural diagram of part A in the middle;

[0026] Figure 4 This is provided by the embodiments of the present invention. Figure 2 A magnified structural diagram of part B in the middle section;

[0027] Figure 5 This is provided by the embodiments of the present invention. Figure 2 A magnified structural diagram of section C;

[0028] Figure 6 This is a three-dimensional structural diagram of the cardiac function rehabilitation device provided in an embodiment of the present invention from a third perspective.

[0029] In the diagram: 1. Fixed base; 2. Fixed frame; 3. Opening area; 4. First arc groove; 5. Second arc groove; 6. Third arc groove; 7. Rotating frame; 71. Drive unit; 72. Lower inclined part; 73. Support unit; 74. Upper inclined part; 8. Receiving groove; 9. First rotating shaft; 10. Sliding hole; 11. Arc-shaped hole; 12. Second rotating shaft; 13. Gear; 14. Lever; 15. Positioning spring; 16. Slide rail; 17. Third rotating shaft; 18. Roller body; 19. Threaded groove; 20. Expansion groove; 21. Screw; 22. Mounting groove; 23. Auxiliary bearing rod; 24. Fixed rod; 25. Rotary ring. Detailed Implementation

[0030] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0031] The structure of the present invention will now be described in detail with reference to the accompanying drawings.

[0032] like Figures 1 to 6As shown in the figure, an embodiment of the present invention provides a cardiac function rehabilitation device, including a fixed base 1, a fixed frame 2 fixedly connected to one side of the fixed base 1, an opening area 3 in the middle of the fixed frame 2, a downwardly recessed first arc groove 4 on the upper side of the fixed frame 2, and an upwardly recessed second arc groove 5 and a third arc groove 6 on the lower side of the fixed frame 2, with the second arc groove 5 and the third arc groove 6 respectively located on both sides of the first arc groove 4, and the second arc groove 5 adjacent to the fixed base 1; it also includes a rotating frame 7, which is rotatably connected to the fixed base 1, with one side of the rotating frame 7 located on the lower side of the fixed base 1 and forming a downwardly recessed receiving groove 8.

[0033] This device consists of three core components: a fixed base 1, a fixed frame 2, and a rotating frame 7. Through the positioning design of the differentiated arc grooves on the fixed frame 2 and the adjustable flip-mount function of the rotating frame 7, it achieves precise fixation of the wrist radial artery detection position in three different usage modes, adapting to different cardiac function rehabilitation testing scenarios. Its core working principle is explained in detail for each mode as follows:

[0034] I. Simplified Support Testing Mode (First Usage Method)

[0035] This mode is suitable for rapid and convenient heart rate detection scenarios, requiring no complex operations. Basic positioning is achieved through the structural support of the mounting bracket 2. With the device in its standard position, the mounting bracket 2 is on top, and the rotating bracket 7 is in its initial closed position. The user simply places their wrist in the first arc groove 4 on the upper side of the mounting bracket 2. The first arc groove 4 features a downward-concave arc design that perfectly matches the curvature of the back of the wrist, providing stable support and limiting left-right and up-down wrist movements. No additional fixation is needed to quickly expose the radial artery detection location, allowing medical staff or patients to perform manual pulse diagnosis themselves, or to complete heart rate detection in conjunction with a pulse sensor, achieving a rapid and effortless detection operation.

[0036] II. Two-way Adaptive Clamping Detection Mode (Second Usage Method)

[0037] This mode is suitable for rehabilitation testing scenarios requiring precise fixation and long-term monitoring. It can be used with both the left and right hands, achieving precise alignment of the radial artery. During operation, the rotating frame 7 is first rotated downwards around the fixing base 1 to open. The user places their wrist stably on the rotating frame 7, and then the rotating frame 7 is returned to its original position. The interaction between the rotating frame 7 and the fixing base 2 creates a closed clamping space, lifting and stabilizing the wrist to prevent displacement during testing. The fixing base 2 has a second arc groove 5 and a third arc groove 6 on its lower side, located on either side of the first arc groove 4. The second arc groove 5 is closer to the fixing base 1. Both arc grooves are designed to be concave upwards, precisely matching the physiological curvature of the radial bone in the left and right hands: when using the left hand, the left radius closely fits the second arc groove 5, achieving radial artery positioning in the left hand; when using the right hand, the right radius closely fits the third arc groove 6, achieving radial artery positioning in the right hand. Switching between the two hand positions requires no device replacement, making it highly versatile. An opening area 3 is opened in the middle of the fixture 2. This opening area 3 is directly opposite the radial artery detection point. The testing personnel can directly perform touch or sensor detection through the opening area 3, completely avoiding structural obstruction and ensuring accurate acquisition of detection signals.

[0038] III. Reverse clamping and fixing mode (third usage method)

[0039] This mode is suitable for testing scenarios involving thicker wrists requiring stronger clamping force, or in specific body positions. It optimizes fixation by reversing the device's orientation. The entire device is flipped so that the fixation frame 2 is below and the rotating frame 7 is above. The user places their wrist between the fixation frame 2 and the rotating frame 7, then controls the rotating frame 7 to rotate downwards. The downward pressure of the rotating frame 7, combined with the supporting force of the fixation frame 2, creates a top-down clamping effect, firmly securing the user's wrist. This mode further enhances stability through reverse force application, adapting to wrists of varying sizes. It still utilizes the second and third arc grooves 5 and 6 to locate the radius bones of the left and right hands, and works with the opening area 3 to detect the radial artery. It is suitable for patients in the recovery period with weak wrist control and prone to wobbling, ensuring stability throughout the testing process and eliminating errors caused by wrist displacement.

[0040] Specifically, the rotating frame 7 includes a driving part 71, a lower inclined part 72, a support part 73, and an upper inclined part 74 that are fixedly connected in sequence. The receiving groove 8 is formed by the upper edges of the lower inclined part 72, the support part 73, and the upper inclined part 74. The rotating frame 7 is provided with a first rotating shaft 9, which is located between the driving part 71 and the lower inclined part 72. The first rotating shaft 9 is rotatably connected to the fixed base 1. One end of the lower inclined part 72 near the driving part 71 is located on the side of the fixed base 1, and the other end extends to the outer edge of the fixed base 1.

[0041] First, the rotating frame 7 is rotatably connected to the fixed base 1 via the first rotating shaft 9. The first rotating shaft 9 is precisely positioned at the connection point between the drive part 71 and the lower inclined part 72, serving as the central fulcrum for the entire rotating frame 7 to rotate, ensuring uniform force distribution and smooth, uninterrupted rotation without any deviation or jamming. Second, one end of the lower inclined part 72 near the drive part 71 is fitted against the side of the fixed base 1, while the other end extends outward to the outer edge of the fixed base 1. This extended design provides ample space for wrist placement, preventing the edge of the fixed base 1 from obstructing wrist movement and accommodating wrists of different thicknesses and lengths.

[0042] The receiving groove 8 on the rotating frame 7 is formed by the upper edges of the lower inclined part 72, the support part 73, and the upper inclined part 74, forming a biomimetic arc-shaped structure that is concave downwards, conforming to the physiological curvature of the bottom of the wrist. The core load-bearing part is the support part 73, which is specifically designed to stably support the wrist body during use, preventing the wrist from being suspended in the air. The lower inclined part 72 and the upper inclined part 74 are located on both sides of the support part 73, forming a natural tilting limiting structure. During use, they form a surrounding limit from both sides of the wrist, preventing the wrist from sliding forward and backward, swaying left and right, or tilting up and down during the test. Together with the arc groove of the fixing frame 2, it achieves double fixation, further improving the stability of wrist positioning. At the same time, this split structure is lighter and more flexible in rotation, and will not cause difficulty in flipping due to excessive weight of components, making it easy for patients in the cardiac function rehabilitation period to operate.

[0043] Furthermore, the drive unit 71 is provided with a sliding hole 10, the fixed base 1 is provided with an arc-shaped hole 11, the fixed base 1 is provided with a second rotating shaft 12, the second rotating shaft 12 is connected to a gear 13, the side of the gear 13 is fixedly connected to a lever 14, the lever 14 is slidably connected to the arc-shaped hole 11, and the lever 14 is located in the sliding hole 10.

[0044] The fixed base 1 has a pre-set second rotating shaft 12 as the mounting axis of the gear 13. The gear 13 can rotate freely around the second rotating shaft 12. An integrated lever 14 is fixedly connected to the side of the gear 13. The lever 14 passes through the arc-shaped hole 11 on the fixed base 1 and the sliding hole 10 of the drive part 71 of the rotating frame 7, realizing the linkage between the gear 13 and the rotating frame 7. When the user manually rotates the gear 13 around the second rotating shaft 12, the gear 13 drives the side lever 14 to make a circular motion in sync. The lever 14 slides in an arc shape in the arc-shaped hole 11 of the fixed base 1, and at the same time slides in a straight line back and forth in the sliding hole 10 of the drive part 71. Through the double sliding of the lever 14, the rotational motion of the gear 13 is converted into the rotational motion of the rotating frame 7 around the first rotating shaft 9, thereby realizing the opening, closing and angle adjustment of the rotating frame 7.

[0045] The arc of the arc-shaped hole 11 corresponds to the maximum flipping angle of the rotating frame 7, limiting the sliding range of the lever 14, thereby limiting the opening and closing range of the rotating frame 7 and preventing excessive flipping that could damage the structure or pinch the wrist. The sliding hole 10 is adapted to the linear sliding requirements of the lever 14, eliminating motion interference and ensuring smooth transmission. This structure enables precise adjustment of the flipping angle of the rotating frame 7, allowing users to flexibly adjust the opening and closing degree of the rotating frame 7 according to their wrist size and detection posture, thus improving the device's adaptability.

[0046] Furthermore, a positioning spring 15 is fixedly connected to the fixed base 1, and the positioning spring 15 is inserted into the tooth groove of the gear 13. The positioning spring 15 is fixedly installed inside the fixed base 1, and its end is elastically inserted into the tooth groove of the gear 13. By utilizing the elastic deformation performance of the spring itself, the two working states can be switched. When the user needs to adjust the angle of the rotating frame 7, a moderate turning torque is applied to the gear 13. The torque overcomes the elastic clamping force between the positioning spring 15 and the tooth groove of the gear 13, causing the spring to deform slightly and disengage from the current tooth groove. The gear 13 can then rotate freely, thereby driving the lever 14 and the rotating frame 7 to complete the angle adjustment. When the rotating frame 7 is adjusted to the appropriate position and no further adjustment is needed, the turning torque is removed. The positioning spring 15 rebounds elastically and re-engages into the corresponding tooth groove of the gear 13. The interlocking action between the tooth groove and the spring locks the rotation of the gear 13, thereby indirectly locking the angle of the rotating frame 7 and keeping it fixed. It will not rebound or loosen due to wrist pressure or external force, and will always maintain a stable clamping or supporting state. This structure does not require additional locking tools and can be manually adjusted and fixed. It is easy to operate, and the elastic positioning will not cause rigid jamming. It ensures a firm positioning, protects the gear 13 and spring structure, extends service life, and is suitable for easy one-handed operation by patients in the rehabilitation period.

[0047] Furthermore, the fixed frame 2 is provided with a slide rail 16 arranged along the trajectory of the fixed frame 2; a third rotating shaft 17 is provided in the slide rail 16, the third rotating shaft 17 can roll or slide in the slide rail 16, and a roller body 18 is fixedly connected to the third rotating shaft 17, the upper edge of the roller body 18 being higher than the upper edge of the fixed frame 2.

[0048] The slide 16 is opened along the overall trajectory of the fixed frame 2 and is consistent with the arc direction of the fixed frame 2. The third rotating shaft 17 is embedded in the slide 16 and can roll or slide freely along the trajectory of the slide 16 to realize flexible adjustment of the position of the roller 18. The roller 18 is fixedly connected to the third rotating shaft 17 and moves synchronously with the third rotating shaft 17. The upper edge of the roller 18 is higher than the upper edge of the fixed frame 2 to ensure that the roller 18 can directly contact and support the wrist, replacing or assisting the arc groove of the fixed frame 2 to achieve load bearing.

[0049] In daily use, the roller 18 can move freely within the slide 16 by relying on the third rotating shaft 17. The user can adjust the position and spacing of the roller 18 according to the size of their wrist. In the first simple support mode, two symmetrically distributed rollers 18 can be set up. The two rollers 18 are adjusted to a suitable distance, and the wrist is placed between the two rollers 18. The rollers 18 surround and limit the small wrist from both sides, making up for the deficiency of the single arc groove of the fixing frame 2 in positioning the small wrist, preventing the small wrist from swaying left and right, and accurately aligning with the radial artery detection point.

[0050] Furthermore, the end of the third rotating shaft 17 is provided with a threaded groove 19, and the edge of the threaded groove 19 is connected to an expansion groove 20. A frustum-shaped or conical screw 21 is connected in the threaded groove 19. The end of the third rotating shaft 17 has a threaded groove 19, and the edge of the threaded groove 19 is connected to an expansion groove 20. A frustum-shaped or conical screw 21 is matched and connected inside the threaded groove 19. In the initial state, the screw 21 is not tightened or not screwed in, the outer diameter of the third rotating shaft 17 is normal, and it can roll and slide freely in the slide 16, which is convenient for adjusting the roller 18 to the target position. After the roller 18 is adjusted to the appropriate positioning position, the screw 21 is screwed into the threaded groove 19. As the screw 21 is continuously tightened, the conical inclined surface of the frustum-shaped or conical screw 21 gradually squeezes the inner wall of the threaded groove 19. Using the expansion force of the conical structure, the expansion groove 20 at the edge of the threaded groove 19 is pushed outward, thereby passively increasing the outer diameter of the corresponding position of the third rotating shaft 17.

[0051] After the diameter of the third rotating shaft 17 increases, its outer wall is tightly pressed against the inner wall of the slide rail 16, generating sufficient static friction to achieve a locking between the third rotating shaft 17 and the slide rail 16. At this time, the third rotating shaft 17 can no longer roll, slide, or rotate, and the position of the roller body 18 is completely fixed, preventing displacement under wrist pressure and ensuring wrist positioning accuracy. This locking structure is a purely mechanical structure, requiring no additional power. Locking and unlocking operations can be completed simply by turning the screw 21, making it convenient to operate and providing a firm and reliable lock suitable for long-term repeated use.

[0052] Furthermore, the surface of the roller 18 is provided with a mounting groove 22. The roller 18 has a pre-set dedicated mounting groove 22, the size of which is adapted to the installation requirements of simple radial artery pulse detectors, heart rate sensors, and other detection devices. After the roller 18 is locked in position, the mounting groove 22 can be fixed at a specified angle according to the detection requirements: when the mounting groove 22 is facing downwards, the simple pulse detector or heart rate sensor probe can be embedded inside the mounting groove 22, with the bottom of the detector fitting against the radial artery detection area of ​​the wrist. The mounting groove 22 limits and fixes the detector, preventing displacement or detachment of the detection device, allowing continuous heart rate monitoring without holding the detector. For batch testing scenarios, the roller 18 can be pre-adjusted and locked to the standard radial artery detection position, with the mounting groove 22 fixedly aligned with the detection point. Subsequently, users only need to place their wrist in the designated position to quickly complete batch testing, significantly improving testing efficiency and eliminating the need for repeated adjustments to the detection position, thus meeting the batch cardiac function rehabilitation testing needs of medical institutions and rehabilitation centers.

[0053] With the mounting grooves 22 on the two rollers 18 aligned, a load-bearing buffer, such as a rubber plate, can be inserted for sufficient support. When the device requires large-area, flexible support for the wrist, the two symmetrically arranged rollers 18 can be adjusted to a parallel state, ensuring precise alignment of the mounting grooves 22 on the two rollers 18. After alignment, the load-bearing buffer, preferably made of flexible material such as a rubber plate or silicone plate, is inserted laterally into the two aligned mounting grooves 22. The mounting grooves 22 secure the ends of the load-bearing buffer, forming a flat, flexible, large-area support plane. Compared to the linear support of a single roller 18 or an arc groove, the load-bearing buffer increases the contact area with the wrist, dispersing wrist pressure and preventing excessive local pressure that could lead to wrist numbness or discomfort. This is especially suitable for scenarios requiring long-term heart rate monitoring during cardiac rehabilitation. The flexible material of the buffer also provides shock absorption and anti-slip properties, further improving wrist stability and adapting to wrists with different curvatures, thus enhancing the device's flexibility.

[0054] Furthermore, the rotating frame 7 is provided with a plurality of auxiliary support rods 23 in the middle, the auxiliary support rods 23 are spaced apart, the ends of the auxiliary support rods 23 are aligned with the ends of the rotating frame 7, and are connected by a fixing rod 24.

[0055] Several parallel auxiliary support rods 23 are arranged in the middle of the rotating frame 7, with uniform gaps between each auxiliary support rod 23. All auxiliary support rods 23 are fixedly connected to the ends of the rotating frame 7 through fixing rods 24 to form a hollow support frame. The auxiliary support rods 23 are aligned with the ends of the rotating frame 7 to ensure the overall structure is neat. During use, the auxiliary support rods 23 replace the traditional solid plate and directly support the bottom of the wrist. The gaps between the rods form ventilation channels to ensure air circulation under the wrist, avoiding sweating and stuffiness caused by prolonged contact, thus improving wearing comfort. At the same time, the hollow auxiliary support rods 23 replace large solid plates, reducing the overall weight of the rotating frame 7, reducing rotational resistance, and making it easy for patients to rotate and adjust. The coordinated support of several rods can effectively prevent the wrist from being partially suspended, avoiding the wrist from sagging and fatigue caused by suspension, making it suitable for patients in the cardiac function rehabilitation period to wear for testing for a long time.

[0056] Furthermore, a rotating ring 25 is rotatably connected to the fixed rod 24. The outer edge of the rotating ring 25 protrudes from the rotating frame 7 and the auxiliary bearing rod 23, and the rotating ring 25 is located in the gap.

[0057] The swivel ring 25 is rotatably connected to the fixed rod 24 and is located in the gap between the auxiliary support rods 23. The outer edge of the swivel ring 25 protrudes from the surface of the rotating frame 7 and the auxiliary support rods 23, forming a protruding rolling edge. On the one hand, the setting of the swivel ring 25 retains the gap between the auxiliary support rods 23, so the ventilation performance is not affected, and the air circulation under the wrist is continuously guaranteed, eliminating the problems of stuffiness and sweating. At the same time, the swivel ring 25 and the auxiliary support rods 23 work together to support the wrist, fit the wrist in all directions, completely avoid the wrist being suspended, distribute the pressure on the wrist, and improve the support comfort. On the other hand, the swivel ring 25 can rotate freely around the fixed rod 24. When the user puts the wrist into or takes the rotating frame 7 out, the swivel ring 25 rolls synchronously with the movement of the wrist, converting sliding friction into rolling friction, which greatly reduces the frictional resistance between the wrist and the rotating frame 7, and avoids the wrist skin being scratched or chafed by the edge of the rod. It is especially suitable for patients with sensitive skin and limited mobility during the recovery period, making it easy to take the wrist out and put it in.

[0058] Working principle of the invention:

[0059] In use, this device relies on the coordinated operation of the fixed base 1, the fixed frame 2, and the rotating frame 7, and offers three flexibly switchable usage modes to meet the needs of different cardiac function rehabilitation testing scenarios. Its core working logic revolves around "precise positioning, stable fixation, and flexible adaptation." First, the device as a whole can be positioned according to the testing requirements. The conventional placement corresponds to two modes: simple support and bidirectional adaptation clamping. The reverse placement corresponds to the reverse clamping fixation mode, adapting to different wrist sizes, testing positions, and usage needs.

[0060] When performing rapid testing, a simple support mode is used, with the rotating frame 7 remaining closed. The user places their wrist in the first arc-shaped groove 4 of the fixed frame 2, relying on the arc-shaped fitting structure to achieve basic positioning. No additional adjustment is required, and the radial artery detection point can be quickly exposed, completing a convenient test. When long-term accurate monitoring or switching between left and right hand use is required, a bidirectional adaptive clamping mode is used. By manually moving the gear 13, the lever 14 slides within the arc-shaped hole 11 and the sliding hole 10, thereby driving the rotating frame 7 to rotate and open around the first rotating axis 9. The user places their wrist into the receiving groove 8 of the rotating frame 7, and then... The rotating frame 7 is reset by moving the gear 13. The wrist is fixed by the clamping action of the rotating frame 7 and the fixed frame 2. At the same time, depending on the hand type, the second arc groove 5 (left hand) or the third arc groove 6 (right hand) is selected to fit. Unobstructed detection is completed through the opening area 3. The positioning spring 15 is engaged with the tooth groove of the gear 13 to lock the angle of the rotating frame 7 and prevent loosening. When the wrist is thick or a special body position is required for detection, the reverse clamping mode is adopted. The flipping device makes the fixed frame 2 lower and the rotating frame 7 upper. The above-mentioned adjustment steps of the rotating frame 7 are repeated. The clamping force from top to bottom is used to improve the fixation stability and adapt to special needs.

[0061] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cardiac function rehabilitation device, characterized in that, include: A fixed base (1) is fixedly connected to a fixed frame (2) on one side. The fixed frame (2) has an opening area (3) in the middle. The upper side of the fixed frame (2) has a first arc groove (4) that is recessed downwards. The lower side of the fixed frame (2) has a second arc groove (5) and a third arc groove (6) that are recessed upwards. The second arc groove (5) and the third arc groove (6) are located on both sides of the first arc groove (4). The second arc groove (5) and the fixed base (1) are adjacent to each other. Rotating frame (7) is rotatably connected to the fixed base (1). One side of the rotating frame (7) is located on the lower side of the fixed base (1) and forms a downward recessed receiving groove (8).

2. The cardiac function rehabilitation device as described in claim 1, characterized in that: The rotating frame (7) includes a drive part (71), a lower inclined part (72), a support part (73), and an upper inclined part (74) that are fixedly connected in sequence. The receiving groove (8) is formed by the upper edges of the lower inclined part (72), the support part (73), and the upper inclined part (74). The rotating frame (7) is provided with a first rotating shaft (9), which is located between the drive part (71) and the lower inclined part (72). The first rotating shaft (9) is rotatably connected to the fixed seat (1). One end of the lower inclined part (72) near the drive part (71) is located on the side of the fixed seat (1), and the other end extends to the outer edge of the fixed seat (1).

3. The cardiac function rehabilitation device as described in claim 2, characterized in that: The drive unit (71) is provided with a sliding hole (10), the fixed seat (1) is provided with an arc-shaped hole (11), the fixed seat (1) is provided with a second rotating shaft (12), the second rotating shaft (12) is connected with a gear (13), the side of the gear (13) is fixedly connected with a lever (14), the lever (14) is slidably connected to the arc-shaped hole (11), and the lever (14) is located in the sliding hole (10).

4. The cardiac function rehabilitation device as described in claim 3, characterized in that: A positioning spring (15) is fixedly connected to the fixed base (1), and the positioning spring (15) is inserted into the tooth groove of the gear (13).

5. The cardiac function rehabilitation device as described in claim 1, characterized in that: The fixed frame (2) is provided with a slide (16) arranged along the trajectory of the fixed frame (2); a third rotating shaft (17) is provided in the slide (16), the third rotating shaft (17) can roll or slide in the slide (16), and a roller (18) is fixedly connected to the third rotating shaft (17), the upper edge of the roller (18) is higher than the upper edge of the fixed frame (2).

6. The cardiac function rehabilitation device as described in claim 5, characterized in that: The end of the third rotating shaft (17) is provided with a threaded groove (19), and the edge of the threaded groove (19) is connected to an expansion groove (20). A frustum-shaped or conical screw (21) is connected in the threaded groove (19).

7. The cardiac function rehabilitation device as described in claim 5, characterized in that: The surface of the roller (18) is provided with a mounting groove (22).

8. The cardiac function rehabilitation device as described in claim 7, characterized in that: With the mounting grooves (22) on the two rollers (18) aligned, a load-bearing buffer can be inserted.

9. The cardiac function rehabilitation device as described in claim 1, characterized in that: The rotating frame (7) is provided with a number of auxiliary support rods (23) in the middle. There are gaps between the auxiliary support rods (23). The ends of the auxiliary support rods (23) and the rotating frame (7) are aligned and connected by a fixing rod (24).

10. A cardiac function rehabilitation device as described in claim 9, characterized in that: A rotating ring (25) is rotatably connected to the fixed rod (24). The outer edge of the rotating ring (25) protrudes from the rotating frame (7) and the auxiliary support rod (23), and the rotating ring (25) is located in the gap.

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