A new type of physical rehabilitation device for intensive care unit
By designing a novel physical rehabilitation device for critical care units, utilizing the combination of spring telescopic rods and sliding grooves, and the dynamic adjustment of elastic moving columns and inclined sliding grooves, combined with an outward-expanding triangular support frame, the problem of training trajectory deviation and joint impact difficulty for critically ill patients is solved, achieving multi-muscle group coordinated rehabilitation and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINGAN LEAGUE PEOPLES HOSPITAL
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-14
AI Technical Summary
Existing rehabilitation devices for critically ill patients are prone to deviations in training trajectory, have difficulty buffering joint impact, and their rehabilitation movements cover limited muscle groups with poor adaptability. Furthermore, the post-training recovery process requires manual intervention, which can easily lead to secondary injuries.
A novel physical rehabilitation device for critical care units is designed, which uses a spring telescopic rod and a sliding groove to achieve precise linear guidance of the movement direction. It combines an elastic moving column and an inclined sliding groove to achieve dynamic pressure adaptive adjustment. Combined with the physiological curvature fit design of the outward-expanding triangular support frame, it achieves stable training trajectory, multi-directional dispersion of joint impact force, and multi-muscle group synergistic rehabilitation.
It achieves a stable training trajectory, disperses joint impact in multiple directions, and provides synergistic rehabilitation effects for multiple muscle groups from the quadriceps to the gastrocnemius, improving rehabilitation efficiency and safety, and reducing the risk of secondary injury during the post-training recovery process.
Smart Images

Figure CN224484826U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rehabilitation devices, and more specifically, to a novel physical rehabilitation device for intensive care units. Background Technology
[0002] In the intensive care unit, patients commonly experience physical decline due to prolonged bed rest, disease-related depletion, or surgical trauma, resulting in muscle atrophy, limited joint mobility, and decreased cardiopulmonary function. This significantly impacts their rehabilitation process and quality of life. Traditional physical rehabilitation relies on assisted training, such as passive joint mobilization and low-intensity resistance exercises. However, these methods are limited by low efficiency, imprecise intensity control, and a lack of diverse training models, failing to meet individualized rehabilitation needs. In recent years, while some mechanical rehabilitation equipment has emerged, it primarily focuses on single functions (such as simple lower limb flexion and extension), lacking multi-joint synergistic training and dynamic load adjustment capabilities. Furthermore, it cannot monitor patients' physiological indicators in real time to adjust training parameters, thus limiting rehabilitation effectiveness.
[0003] After training with existing rehabilitation devices, patients' muscles are often in a state of tension or fatigue, requiring manual stretching and relaxation techniques from caregivers. However, manual care suffers from uneven pressure and insufficient duration, easily leading to secondary injuries or incomplete recovery. Furthermore, the large number of critically ill patients and strained nursing resources make it difficult for caregivers to provide adequate and professional recovery guidance to each patient, resulting in prolonged rehabilitation periods and increased overall treatment costs. Therefore, there is an urgent need for a new device integrating training and recovery functions to address the pain points in the post-training recovery process.
[0004] Therefore, we have made improvements to this and proposed a new type of physical rehabilitation device for critical care units. Utility Model Content
[0005] In order to achieve the above-mentioned objectives, this utility model provides a novel physical rehabilitation device for intensive care units to improve the aforementioned problems.
[0006] The application is as follows:
[0007] include:
[0008] support;
[0009] A diagonal brace is installed on the bracket and tends to tilt downwards with the top surface of the bracket facing down.
[0010] A pedal machine, mounted on the inclined bar, includes two pedals;
[0011] A bent rod is provided on the inclined rod, and a torsion spring is provided between the bent rod and the inclined rod. The rod also includes:
[0012] A support rod is mounted on the curved rod and extends to the same plane as the pedal path;
[0013] The frame, located between the bent rod and the support rod, forms a triangular support in the back of the knee when the patient's foot is on the pedal.
[0014] The movable column is elastically mounted on the frame and slides in the triangular tilt direction of the frame;
[0015] The elastic band has one end attached to the support rod and the other end attached to the bottom of the pedal.
[0016] When the stepping action occurs, the elastic band pulls the bent bar, causing the moving column to press against the skin and move to both sides of the thigh and calf with the knee as the center.
[0017] Preferred options also include:
[0018] A spring-loaded telescopic rod is installed on the inclined rod;
[0019] A sliding groove is formed on the adjacent surface of the bent rod and the spring telescopic rod, allowing the end of the spring telescopic rod to slide. A sliding block is provided between the sliding groove of the spring telescopic rod and the bent rod.
[0020] Preferably, the elastic setting of the movable column specifically includes a helical spring and a sliding groove; the two ends of the helical spring are respectively fixed to the inner wall of the frame and the end face of the movable column, and the sliding groove is opened along the triangular inclined direction of the frame, and the movable column slides in cooperation with the sliding groove through the slider.
[0021] Preferably, the triangular support portion of the frame is an outwardly expanding isosceles triangle, with its apex being a concave arc that fits into the back of the knee, and its two sides being outwardly curved arc-shaped rods.
[0022] Preferably, the connection end of the elastic band and the support rod is provided with a length adjustment buckle, and the connection end with the bottom of the pedal is hinged through a universal joint.
[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0024] In the scheme of this application:
[0025] To address the problems of training trajectory deviation, joint impact difficulty, limited muscle group coverage, and poor adaptability in existing rehabilitation devices for critically ill patients, this application achieves precise linear guidance of movement direction by setting up a spring telescopic rod in conjunction with a sliding groove, and uses an elastic moving column and an inclined sliding groove to complete dynamic pressure adaptive adjustment. Combined with the physiological curvature fit design of the outward-expanding triangular support frame, the final result is a stable training trajectory, multi-directional dispersion of joint impact force, and multi-muscle group synergistic rehabilitation effect covering the quadriceps to the gastrocnemius muscles. Attached Figure Description
[0026] Figure 1A front view of a novel physical rehabilitation device for intensive care units provided in this application;
[0027] Figure 2 Rear view of a novel physical rehabilitation device for intensive care units provided in this application;
[0028] Figure 3 Enlarged view of section A of a novel physical rehabilitation device for intensive care units provided in this application.
[0029] The image shows:
[0030] 1. Frame; 2. Diagonal brace; 3. Pedal machine; 4. Bending rod; 40. Support rod; 41. Frame; 42. Moving column; 43. Elastic band; 44. Spring telescopic rod. Detailed Implementation
[0031] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0032] For an example, please refer to... Figure 1 , Figure 2 and Figure 3 A novel physical rehabilitation device for intensive care units includes:
[0033] Bracket 1;
[0034] Diagonal brace 2 is installed on bracket 1 and tends to tilt downward with the top surface of bracket 1.
[0035] The pedal machine 3 is mounted on the inclined bar 2 and includes two pedals;
[0036] A bent rod 4 is mounted on the diagonal rod 2, and a torsion spring is provided between the bent rod 4 and the diagonal rod 2. The rod also includes:
[0037] Support rod 40 is mounted on the curved rod 4 and extends to the same plane as the pedal path;
[0038] The frame 41 is set between the bent rod 4 and the support rod 40. When the patient's foot is on the pedal, the frame 41 forms a triangular support in the back of the knee.
[0039] The movable column 42 is elastically set on the frame 41 and slides in the triangular tilt direction of the frame 41;
[0040] The elastic band 43 has one end set on the support rod 40 and the other end set on the bottom of the pedal;
[0041] When the stepping action occurs, the elastic band 43 pulls the curved bar 4, causing the moving column 42 to press against the skin and move to both sides of the thigh and calf with the knee socket as the center.
[0042] When the patient places their foot on the pedal of the stepper machine 3 and begins to pedal, the synergistic mechanism of the entire device is activated, exhibiting a multi-dimensional rehabilitation effect. First, at the moment of pedaling, the elastic band 43 is stretched due to the pressure of the pedal, and its reverse traction force acts directly on the bent bar 4, causing the bent bar 4 to deflect controllably around the diagonal bar 2 as a fulcrum. This deflection is transmitted to the frame 41 through the support rod 40. The triangular support structure of the frame 41 quickly conforms to the patient's knee socket, forming a stable mechanical fulcrum. This avoids the hard compression of the joint by traditional rehabilitation equipment and disperses the impact force of movement through the three-point fixation principle, providing a safety guarantee for subsequent movements.
[0043] As the pedaling motion continues, the traction force of the elastic band 43 and the torsion spring between the bent rod 4 and the inclined rod 2, though not individually numbered, create a dynamic balance due to the deformation of key elastic elements: the elastic potential energy of the torsion spring accumulates as the deflection angle of the bent rod 4 increases, while the tensile length of the elastic band 43 changes positively correlated with the traction force. This coupling effect of the dual elastic system requires the patient's lower limbs to continuously overcome variable resistance during pedaling, simulating the changes in muscle load during real walking, and avoiding muscle fatigue caused by single-intensity training through resistance gradient adjustment. At this time, the movable column 42 slides elastically on the inclined guide rail of the frame 41, and the flexible material covering its surface conforms closely to the skin as the frame 41 deforms. When the bent rod 4 deflects and drives the frame 41 to move, the movable column 42 slides from the knee socket to both sides of the thigh and calf, forming a dynamic massage trajectory.
[0044] During the downward pressure phase of the pedal, the movable column 42 slides from the back of the knee towards the groin, promoting venous return through mechanical compression. During the upward pressure phase, the movable column 42 slides in the opposite direction to the back of the calf, where, combined with the assisted traction of the elastic band 43, passive stretching and active contraction of the muscles alternate. Throughout the process, the triangular support structure of the frame 41 maintains a dynamic fit with the lower limb, ensuring the stability of the movement trajectory while covering key muscle groups such as the quadriceps, hamstrings, and gastrocnemius muscles through the sliding of the movable column 42, achieving multi-site synergistic rehabilitation with a single pedaling motion. Ultimately, this device significantly improves the efficiency and safety of lower limb function recovery in critically ill patients by transforming a simple pedaling motion into a complex rehabilitation exercise that includes resistance training, muscle massage, venous promotion, and joint movement.
[0045] Also includes:
[0046] Spring telescopic rod 44 is installed on diagonal rod 2;
[0047] A sliding groove is formed on the adjacent surface of the bent rod 4 and the spring telescopic rod 44, allowing the end of the spring telescopic rod 44 to slide. A sliding block is provided between the sliding groove of the spring telescopic rod 44 and the bent rod 4.
[0048] The spring telescopic rod 44 is diagonally connected to the inclined rod 2 and the bent rod 4, suppressing the radial sway of the bent rod 4 when stepped on, and ensuring efficient transmission of the torsion spring potential energy. The sliding block rolls in the sliding groove of the bent rod 4, converting the rotation into linear motion, so that the sliding trajectory of the moving column 42 precisely conforms to the curve of the limb.
[0049] The elastic setting of the movable column 42 specifically includes a helical spring and a sliding groove; the two ends of the helical spring are respectively fixed to the inner wall of the frame 41 and the end face of the movable column 42, and the sliding groove is opened along the triangular inclined direction of the frame 41, and the movable column 42 slides and engages with the sliding groove through the slider.
[0050] The preload of the helical spring allows the movable column 42 to flexibly compress the skin to meet the body's requirements, avoiding tissue damage. The forced guidance of the groove ensures that the movable column 42 slides strictly along the triangular inclination of the frame 41, that is, sliding from the popliteal fossa towards the sides of the thigh and calf, improving venous return efficiency.
[0051] The triangular support part of frame 41 is an outwardly expanding isosceles triangle, with its apex being a concave arc that fits into the back of the knee, and its two sides being outwardly curved arc rods.
[0052] The concave surface conforms to the anatomical shape of the popliteal fossa, distributing the supporting pressure of the central frame 41. The curvature of the arc-shaped rod matches the direction of the thigh / calf muscles, guiding the moving column 42 to slide precisely along the quadriceps / gastrocnemius muscle.
[0053] The elastic band 43 is provided with a length adjustment buckle at the connection end with the support rod 40, and is hinged to the connection end with the bottom of the pedal through a universal joint.
[0054] The length adjustment buckle adapts to different leg lengths, ensuring that the traction force of the elastic band 43 on the bent rod 4 matches the patient's size. The universal joint head maintains the traction force perpendicular to the rotation plane of the bent rod 4, preventing deviation of the stepping trajectory.
[0055] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A novel physical rehabilitation device for intensive care units, characterized in that, include: Support (1); A diagonal brace (2) is provided on the bracket (1) and tends to tilt downward with the top surface of the bracket (1); A pedal machine (3) is mounted on the inclined bar (2) and includes two pedals; A bent rod (4) is provided on the inclined rod (2), and a torsion spring is provided between the bent rod (4) and the inclined rod (2), and further includes: A support rod (40) is provided on the bent rod (4) and extends to the same plane as the pedal path; The frame (41) is set between the bent rod (4) and the support rod (40). When the patient's foot is on the pedal, the frame (41) forms a triangular support in the popliteal fossa. The movable column (42) is elastically set on the frame (41) and slides in the triangular tilt direction of the frame (41); The elastic band (43) has one end set on the support rod (40) and the other end set at the bottom of the pedal; When the stepping action occurs, the elastic band (43) pulls the bent bar (4), causing the moving column (42) to press against the skin and move to both sides of the thigh and calf with the knee socket as the center.
2. The novel physical rehabilitation device for intensive care units according to claim 1, characterized in that, Also includes: A spring telescopic rod (44) is installed on the inclined rod (2); A sliding groove is formed on the adjacent surface of the bent rod (4) and the spring telescopic rod (44) for sliding connection of the end of the spring telescopic rod (44). A sliding block is provided between the sliding groove of the spring telescopic rod (44) and the bent rod (4).
3. The novel physical rehabilitation device for intensive care units according to claim 2, characterized in that, The elastic setting of the movable column (42) specifically includes a helical spring and a sliding groove; the two ends of the helical spring are respectively fixed to the inner wall of the frame (41) and the end face of the movable column (42), and the sliding groove is opened along the triangular inclined direction of the frame (41), and the movable column (42) slides and engages with the sliding groove through the slider.
4. The novel physical rehabilitation device for intensive care units according to claim 3, characterized in that, The triangular support part of the frame (41) is an outwardly expanding isosceles triangle, with its apex being a concave arc that fits into the back of the knee, and its two sides being outwardly curved arc rods.
5. A novel physical rehabilitation device for intensive care units according to claim 4, characterized in that, The elastic band (43) is provided with a length adjustment buckle at the connection end with the support rod (40), and is hinged to the connection end at the bottom of the pedal through a universal joint.