Bedside upper limb rehabilitation training device
By designing a bedside upper limb rehabilitation training device, using electric lifting columns and multi-stage training motors, precise rehabilitation training for bedside patients is achieved, solving the problem that existing equipment cannot be combined with the hospital bed, and improving the safety and efficiency of rehabilitation training.
Patent Information
- Application Number
- CN202421868445.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-05
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-08-05
AI Technical Summary
The existing bedside upper limb rehabilitation training equipment cannot be effectively combined with the hospital bed, and there is a risk of excessive traction and joint impact. The exoskeleton robot is large in weight, large in size, and difficult human-computer interaction, which cannot meet the rehabilitation needs of bedridden patients.
A bedside upper limb rehabilitation training device is designed, using electric lifting columns and multi-stage training motors, and the patient's arms are fixed through a guide rail sliding mechanism, combined with an adjustable telescopic rod and grip to achieve accurate joint rehabilitation training, avoid contact with the bed, and adapt to different bed structures.
In the rehabilitation training of bedridden patients, we can accurately guide patients to undergo rehabilitation training to avoid secondary injuries, improve the safety and efficiency of rehabilitation training, reduce the work burden of doctors, and shorten the rehabilitation cycle.
Smart Images
Figure CN223158562U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to rehabilitation training equipment, in particular to a bedside upper limb rehabilitation training device, belonging to the technical field of rehabilitation training equipment. Background Art
[0002] Most post-stroke hemiplegic patients, particularly those in the flaccid and spastic phases, require bedridden rehabilitation. Existing upper limb rehabilitation devices primarily focus on seated rehabilitation training, which doesn't integrate well with a bed. Their spatial configuration isn't ideal for bedside use, making them inadequate for the rehabilitation needs of bedridden patients. Existing bedside upper limb rehabilitation typically relies on manual training by rehabilitation physicians and traction training using end-tethered rehabilitation devices. However, end-tethered rehabilitation robots don't align well with human limb movements, leading to risks like overtraction and joint impact. Some institutions utilize upper limb rehabilitation training robots for bedside training. Upper limb rehabilitation training robots can be broadly categorized into two types: end-tethered robots and exoskeleton robots. End-tethered upper limb rehabilitation training robots utilize a linkage mechanism, with the end effector fixedly connected to the arm to traction the upper limb for rehabilitation training. However, these robots can't accurately guide the upper limb joints during training, potentially leading to secondary injuries. Exoskeleton robots assist patients in rehabilitation training by supporting and tractioning various upper limb joints. Exoskeleton robots can precisely guide patients through various rehabilitation exercises and effectively protect their safety during the training process. However, current exoskeleton robots have drawbacks such as heavy weight, bulk, and difficulty in human-machine interaction. They cannot be effectively integrated with hospital beds in most settings, and their spatial location is not suitable for most current bedside settings. This prevents patients in the flaccid paralysis stage from effectively using upper limb rehabilitation training equipment, placing a significant workload on rehabilitation physicians and potentially leading to increased rehabilitation cycles and reduced outcomes. Summary of the Invention
[0003] The purpose of the utility model is to overcome the above-mentioned problems existing in the current bedside upper limb rehabilitation training and to provide a bedside upper limb rehabilitation training device.
[0004] To achieve the object of the present utility model, the following technical solutions are adopted: A bedside upper limb rehabilitation training device includes a base, multiple casters with brakes are installed under the base, an electric lifting column is fixedly installed on the base, a mounting plate is fixedly connected to the moving end of the lifting column, a conversion motor is fixedly connected to the mounting plate, a fixed block is fixedly connected to the output shaft of the conversion motor, a first training motor is fixedly connected to the fixed block, the axial direction of the first training motor is the front-back direction, a left-right direction guide rail is fixedly connected to the output shaft of the first training motor, a slider is configured on the guide rail, a guide rail clamp is configured on the guide rail, a shoulder rod is fixedly connected to the slider, and a second training motor is fixedly connected to the shoulder rod; a upper arm rod is fixedly connected to the output shaft of the second training motor, a third training motor is fixedly connected to the upper arm rod, a forearm rod is fixedly connected to the output shaft of the third training motor, an L-shaped wrist joint connecting rod is fixedly connected to the forearm rod, a left-right direction grip is connected to the wrist joint connecting rod, and the axial directions of the second training motor and the third training motor are both the horizontal left-right direction.
[0005] Further; a reverse fixing member is fixedly connected to the mounting plate, pin holes are provided on the reverse fixing member at an interval of 180 degrees, insertion pin holes corresponding to the pin holes are provided on the fixed block, and a positioning pin is inserted into the pin holes and the insertion pin holes.
[0006] Further; the upper arm rod and the forearm rod are both telescopic rods with position locking, and armrests for restraining the upper limb are connected to both the upper arm rod and the forearm rod.
[0007] Further; an L-shaped member is rotatably connected to the left-right direction side of the L-shaped wrist joint connecting rod, a dividing plate is fixedly arranged on the left-right direction side of the L-shaped member, a circle of circularly distributed dividing holes are provided on the dividing plate, the circularly distributed dividing holes are centered on the rotation axis of the L-shaped member, and a spring pin is fixedly installed on the L-shaped wrist joint connecting rod and inserted into one of the dividing holes.
[0008] The positive and beneficial technical effects of the present utility model are as follows: By controlling the rotation of the conversion motor and quickly turning, the switching of the left and right limbs is realized. Compared with the manual operation of the hand crank, it is convenient and fast, time-saving and labor-saving. Compared with the complex mechanical structure transmission and cooperation, the transmission accuracy is high, the stability is high, the disassembly is convenient, and it is easy to maintain; Through the guide rail sliding mechanism, when the patient is lying in bed and unable to move, the patient's arm can be conveniently fixed according to the patient's position; The device can be moved and lifted, and the robotic arm is an independent mechanism and does not contact the bed body, adapting to various bed body structures and application scenarios. Description of the Drawings
[0009] Figure 1 is the overall schematic diagram of the present utility model.
[0010] Figure 2 is the schematic diagram of the rear end of the present utility model.
[0011] Figure 3 It is a schematic diagram of the front end of the present utility model. Specific embodiments
[0012] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0013] The marks in the accompanying drawings are as follows: 1: base; 2: lifting column; 3: mounting plate‘; 4: flipping motor; 5: first training motor; 6: guide rail; 7: slider; 8: guide rail clamp‘; 9: shoulder rod; 10: second training motor; 11: upper arm rod; 12: third training motor; 13: forearm rod; 14: armrest; 15: wrist joint connecting rod; 16: L-shaped part; 17: grip; 18: spring pin; 19: reverse fixing part; 20: fixing block; 21: positioning pin; 22: indexing plate; ’23: indexing hole.
[0014] As shown in the accompanying drawings, a bedside upper limb rehabilitation training device includes a base 1. A plurality of casters with brakes are installed under the base. An electric lifting column 2 is fixedly installed on the base and can be lifted according to the height of the bed body. An installation plate 3 is fixedly connected to the action end of the lifting column 2. A conversion motor 4 is fixedly connected to the installation plate. A fixing block 20 is fixedly connected to the output shaft of the conversion motor. A reverse fixing part 9 is fixedly connected to the installation plate 3. Pin holes are provided at intervals of 180 degrees on the reverse fixing part. Insertion pin holes corresponding to the pin holes are provided on the fixing block. A positioning pin is inserted into the pin hole and the insertion pin hole. 21 shows the positioning pin. The function of the conversion motor is to perform left and right training switching, rotate 180 degrees for left and right switching, and use the positioning pin for positioning after switching in place.
[0015] A first training motor 5 is fixedly connected to the fixed block 20. The axial direction of the first training motor 5 is the front-back direction, and the front-back direction can be inclined upward or downward. A guide rail 6 in the left-right direction is fixedly connected to the output shaft of the first training motor 5. A slider 7 is arranged on the guide rail 6, and a guide rail clamp 8 is arranged on the guide rail. The guide rail clamp, also known as a linear guide rail clamp, slider lock, or guide rail limiter, is used to control the movement of the slider and is an existing technology. After the guide rail clamp is released, the slider can move freely, and after it is locked, the slider is locked on the guide rail. A shoulder rod 9 is fixedly connected to the slider, and a second training motor 10 is fixedly connected to the shoulder rod. A forearm rod 11 is fixedly connected to the output shaft of the second training motor. A third training motor 12 is fixedly connected to the forearm rod 11. A wrist joint connecting rod 15 in an L shape is fixedly connected to the output shaft of the third training motor 12. The upper arm rod and the forearm rod are both telescopic rods with position locking. The telescopic rod can be a sleeve-type telescopic rod and is locked with a setscrew. Armrests 14 for restraining the upper limb are connected to both the upper arm rod and the forearm rod. The axial directions of the second training motor and the third training motor are both the horizontal left-right direction. According to the different lengths of the patient's arm, the telescopic adjustment can be performed through the telescopic rod. According to the distance between the patient and the edge of the bed, the distance can be adjusted by sliding the slider left and right.
[0016] A left-right direction grip 17 is connected to the wrist joint connecting rod. In this embodiment, an L-shaped member 16 is rotatably connected to the left-right direction side of the L-shaped wrist joint connecting rod 15. A graduated disc 22 is fixedly arranged on the left-right direction side of the L-shaped member. A circle of graduated holes 23 distributed circularly is formed on the graduated disc. The circularly distributed graduated holes are centered on the rotation axis of the L-shaped member. A spring pin 28 is fixedly installed on the L-shaped wrist joint connecting rod, and the spring pin is inserted into one of the graduated holes. By rotating the graduated disc, the angle of the grip can be adjusted to adapt to different patients.
[0017] By controlling the rotation of the first training motor and the second training motor, the flexion and extension, and abduction and adduction of the shoulder joint are realized. By controlling the rotation of the third training motor 12, the flexion and extension of the elbow joint are realized.
Claims
1. A bedside upper limb rehabilitation training device, comprising a base, a plurality of casters with brakes are installed under the base, an electric lifting column is fixedly installed on the base, and a mounting plate is fixedly connected to the moving end of the lifting column, and is characterized in that: The conversion motor is fixedly connected to the mounting plate. A fixed block is fixedly connected to the output shaft of the conversion motor. A first training motor is fixedly connected to the fixed block. The axial direction of the first training motor is the front-back direction. A left-right direction guide rail is fixedly connected to the output shaft of the first training motor. A slider is arranged on the guide rail. A guide rail clamp is arranged on the guide rail. A shoulder rod is fixedly connected to the slider. A second training motor is fixedly connected to the shoulder rod. A forearm rod is fixedly connected to the output shaft of the second training motor. A third training motor is fixedly connected to the forearm rod. An L-shaped wrist joint connecting rod is fixedly connected to the forearm rod. A left-right direction grip is connected to the wrist joint connecting rod. The axial directions of the second training motor and the third training motor are both the horizontal left-right direction.
2. The bedside upper limb rehabilitation training device according to claim 1, characterized in that: A reverse fixing member is fixedly connected to the mounting plate. Pin holes are provided in the reverse fixing member at an interval of 180 degrees. A plug pin hole corresponding to the pin hole is provided on the fixed block. A positioning pin is inserted into the pin hole and the plug pin hole.
3. The bedside upper limb rehabilitation training device according to claim 1, characterized in that: Both the upper arm rod and the forearm rod are telescopic rods with position locking. Armrests for restraining the upper limbs are connected to both the upper arm rod and the forearm rod.
4. The bedside upper limb rehabilitation training device according to claim 1, characterized in that: An L-shaped member is rotatably connected to the left-right direction side of the L-shaped wrist joint connecting rod. A dividing plate is fixedly arranged on the left-right direction side of the L-shaped member. A circle of circularly distributed dividing holes are provided in the dividing plate. The circularly distributed dividing holes are centered on the rotation axis of the L-shaped member. A spring pin is fixedly installed on the L-shaped wrist joint connecting rod. The spring pin is inserted into one of the dividing holes.