A rehabilitation bed-chair system having an upper and lower limb

Abstract

The application discloses a rehabilitation bed-chair system with upper limbs and lower limbs, which comprises a fixed base, a cushion is fixedly installed at the top of the fixed base, a chair back is hingedly connected to one end of the cushion, a leg support plate is hingedly connected to the other end of the cushion, a foot pad is hingedly connected to one end of the leg support plate, a mounting seat is fixedly installed at one end of the foot pad, a direction plate is rotatably connected in the mounting seat, a lower limb rehabilitation device is fixedly installed at the top of the direction plate, an upper limb rehabilitation device is fixedly installed at one end of the fixed base, and a control panel is fixedly installed on the surface of the fixed base; the upper limb rehabilitation device, the cushion and the lower limb rehabilitation device are arranged, a modular upper and lower limbs and a bed-chair integrated composite configuration are created, the inherent layout of the industry is broken, that is, the separation of traditional beds, chairs and rehabilitation devices, one device realizes nursing, rest, body position training and limb rehabilitation full-function closed loop, the structure is novel and highly practical, and pain caused by the reciprocating pulling of patients on the device is reduced.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation medical device technology, specifically to a rehabilitation bed and chair system with upper and lower limbs. Background Technology

[0002] Rehabilitation training chairs are highly targeted assistive devices that help prevent deep vein thrombosis and joint contractures. They restore basic physical fitness through progressive resistance training. For elderly individuals with decreased balance and a high risk of falls, the chairs combine sit-to-stand exercises to enhance lower limb strength and coordination. Some rehabilitation training chairs can monitor heart rate, fatigue levels, and other indicators in real time to ensure safety. Rehabilitation training chairs replace the supine position in bed, helping patients sit up smoothly, improving postural circulation, preventing orthostatic hypotension, and enhancing physical endurance. Under stable sitting conditions, they are combined with modular upper... The limb structure allows for flexion, extension, abduction, and resistance training of the shoulder, elbow, and wrist joints, improving stiffness, weakness, and limited mobility in the hemiplegic upper limbs. In a chair position, it enables seated stepping, knee flexion and extension, and foot weight-bearing perception training, simulating standing force in advance, improving lower limb muscle strength, and preventing falls when getting out of bed later. The chair provides stable support for the trunk, helping hemiplegic and myasthenia gravis patients strengthen core sitting balance, improving trunk tilt and sitting instability. By replacing prolonged lying down with sitting rehabilitation, it effectively reduces high-risk complications of bed rest such as pressure sores, lung infections, deep vein thrombosis in the lower limbs, and muscle atrophy.

[0003] However, traditional rehabilitation training chairs have the following drawbacks: Traditional fixed rehabilitation chairs lack the function of lying down for nursing care, which cannot meet the urgent needs of patients in the early postoperative period, critically ill and weak patients for bed rest and early passive rehabilitation. Patients must be frequently transferred between the bed and the chair, which is labor-intensive for caregivers, and paralyzed limbs and surgical wounds are very susceptible to secondary damage from traction. Summary of the Invention

[0004] The purpose of this invention is to provide a rehabilitation bed and chair system with upper and lower limbs to solve the problems mentioned in the background art. Traditional fixed rehabilitation training chairs do not have a supine nursing function, which cannot meet the urgent needs of patients in the early postoperative period, critically ill and weak patients for bed rest and early passive rehabilitation. Patients must be frequently transferred between the bed and chair, resulting in high labor intensity for caregivers and easy secondary damage to hemiplegic limbs and surgical wounds.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a rehabilitation bed and chair system with upper and lower limbs, including a fixed base; A seat cushion is fixedly installed at the top of the fixed base. A chair back is hinged to one end of the seat cushion, and a leg support plate is hinged to the other end of the seat cushion. A foot pad is hinged to one end of the leg support plate, and a mounting base is fixedly installed at one end of the foot pad. A direction plate is rotatably connected inside the mounting base. A lower limb rehabilitation component is fixedly installed at the top of the direction plate, and an upper limb rehabilitation component is fixedly installed at one end of the fixed base. A control panel is fixedly installed on the surface of the fixed base. The upper limb rehabilitation device includes an upper limb rehabilitation frame and a top plate. The top end of the upper limb rehabilitation frame is fixedly connected to the bottom end of the top plate. Movable grooves are provided in the middle of both sides of the top plate. Movable rods are fixedly installed inside the two movable grooves. A first rehabilitation mechanism is movably connected to the middle of the two movable rods. A pushing cylinder is fixedly installed at one end of the top plate. A second rehabilitation mechanism is fixedly installed at the movable end of the pushing cylinder.

[0006] As a further technical solution of the present invention, a three-dimensional foot pressure sensing module and a high-precision real-time angle acquisition encoder are installed on some foot pads; in bed mode, passive flexion and extension of the lower limbs are performed to prevent deep vein thrombosis; in chair mode, sitting weight-bearing simulated stepping, lower limb muscle awakening, and pre-standing pre-adaptation training are performed. One machine covers the full-cycle functional reconstruction needs of the lower limbs. The entire control panel has built-in posture linkage prediction algorithm, limb compliance force control adjustment model, and multi-module time-sharing scheduling logic; it automatically corrects the upper limb movement amplitude, lower limb gait stride, and output assist torque in real time according to the current tilt angle of the bed and chair, eliminating joint sprains and postural imbalances caused by asynchronous posture switching and limb training, and ensuring full flexibility and controllability without rigid impact. As a further technical solution of the present invention, the second rehabilitation mechanism includes a push plate and two rigid springs. The two sides of the bottom end of the push plate are respectively fixedly connected to the top ends of the two rigid springs. A connecting ring is fixedly installed at the bottom end of each of the two rigid springs. A first pull ring is fixedly installed inside each of the two connecting rings. When the patient lies down, the push cylinder performs a telescopic movement. The push cylinder pushes the push plate from one side to adjust the position of the second rehabilitation mechanism. The patient pulls the first pull ring to complete the upper limb rehabilitation training.

[0007] As a further technical solution of the present invention, one side of the push plate is fixedly connected to the push cylinder, and the second rehabilitation mechanism is installed on one side of the push cylinder through the push plate.

[0008] As a further technical solution of the present invention, both of the first rehabilitation mechanisms include a displacement block and a rotating shaft. The bottom end of the displacement block is rotatably connected to the top end of the rotating shaft. A pull rod is fixedly installed at the bottom end of the rotating shaft. A second pull ring is fixedly installed at the bottom end of one side of the pull rod. When the patient is sitting, the patient pulls the second pull ring with his / her hand. The second pull ring drives the pull rod to move synchronously. The pull rod rotates relative to the displacement block through the rotating shaft, or the displacement block rotates relative to the movable rod, thereby completing the upper limb rehabilitation training.

[0009] As a further technical solution of the present invention, the two displacement blocks are respectively movably connected to the two movable rods, and the first rehabilitation mechanism is installed on the movable rods through the displacement blocks.

[0010] As a further technical solution of the present invention, the lower limb rehabilitation device includes a lower limb rehabilitation table and two lower limb rehabilitation frames. Lifting grooves are provided on both sides of the lower limb rehabilitation table. Lifting blocks are slidably connected inside each of the two lifting grooves. The opposite sides of the two lifting blocks are fixedly connected to the opposite sides of the two lower limb rehabilitation frames. Return springs are fixedly installed at the bottom ends of the two lifting blocks. The bottom ends of the two return springs are fixedly connected to the bottom ends of the inner walls of the two lifting grooves. The bottom end of the lower limb rehabilitation table is fixedly connected to a direction plate. When the patient's leg is placed on the lower limb rehabilitation frame, the patient's foot presses against the lower limb rehabilitation frame, which in turn presses against the return springs. The return springs are elastic, and their elastic deformation buffers the pressing force, facilitating subsequent repositioning of the lower limb rehabilitation frame.

[0011] As a further technical solution of the present invention, an installation plate is fixedly installed on one side of the fixed base, and a first angle cylinder is fixedly installed on the top of the installation plate. The movable end of the first angle cylinder is movably connected to a first sliding block. The first sliding block is slidably connected to the chair back. The first angle cylinder performs a telescopic movement and pushes the first sliding block from the bottom. The first sliding block slides along the chair back. Under the action of the sliding force, the chair back deflects relative to the seat cushion.

[0012] As a further technical solution of the present invention, a second angle cylinder is fixedly installed on the other side of the fixed base. The movable end of the second angle cylinder is movably connected to a second sliding block. The second sliding block is slidably connected to the leg support plate. The second angle cylinder performs telescopic movement. The second angle cylinder pushes the second sliding block from one side. The second sliding block slides along the leg support plate, causing the leg support plate to deflect relative to the seat cushion.

[0013] As a further technical solution of the present invention, lumbar support pads are fixedly installed in the middle of both sides of the chair back, and two armrests located below the lumbar support pads are fixedly installed on the chair back. The lumbar support pads and armrests protect the waist from both sides of the patient.

[0014] As a further technical solution of the present invention, the four corners of the bottom of the fixed base are all fixedly installed with movable wheels. The movable wheels generate friction after contacting the ground, which facilitates the user to move the transport device.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up upper limb rehabilitation components, a cushion, and lower limb rehabilitation components, it pioneers a modular upper and lower limb, bed and chair integrated composite structure, breaking the traditional industry layout of separating the bed, chair, and rehabilitation equipment. One device realizes a closed loop of full-function nursing, rest, posture training and limb rehabilitation. The structure is novel and highly practical, reducing the pain caused by patients repeatedly pulling the affected area up and down on the device. 2. The entire device covers the entire rehabilitation cycle, from early passive rehabilitation for severely ill patients in bed, to muscle awakening in the middle stage of sitting up, and then to pre-training of sitting posture and weight-bearing gait in the later stage. It does not require transportation or equipment replacement, which greatly reduces the procurement costs and nursing manpower burden of medical institutions, and has outstanding social benefits and industrialization value. Attached Figure Description

[0016] Figure 1 This is a side view of the present invention; Figure 2 This is a side view of the upper limb rehabilitation device of the present invention; Figure 3 This is a side view of the second rehabilitation device of the present invention; Figure 4 This is a side view of the first rehabilitation facility of the present invention; Figure 5 This is a side view of the lower limb rehabilitation device of the present invention.

[0017] In the diagram: 1. Fixed base; 2. Casters; 3. Mounting plate; 4. First angle cylinder; 5. First sliding block; 6. Chair back; 7. Lumbar support pad; 8. Armrest; 9. Seat cushion; 10. Leg support plate; 11. Upper limb rehabilitation component; 111. Upper limb rehabilitation frame; 112. Top plate; 113. Movable groove; 114. Movable rod; 115. First rehabilitation mechanism; 1151. Displacement block; 1152. Rotating shaft; 1153. Pull rod; 1154. Second pull ring; 16. Push cylinder; 117. Second rehabilitation mechanism; 1171. Push plate; 1172. Rigid spring; 1173. Connecting ring; 1174. First pull ring; 12. Second sliding block; 13. Second angle cylinder; 14. Control panel; 15. Foot pad; 16. Lower limb rehabilitation component; 161. Lower limb rehabilitation table; 162. Lifting groove; 163. Lifting block; 164. Lower limb rehabilitation frame; 165. Return spring; 17. Mounting base; 18. Direction plate. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-5 The present invention provides a rehabilitation bed and chair system with upper and lower limbs, including a fixed base 1; A seat cushion 9 is fixedly installed at the top of the fixed base 1. A chair back 6 is hinged to one end of the seat cushion 9. A leg support plate 10 is hinged to the other end of the seat cushion 9. A foot pad 15 is hinged to one end of the leg support plate 10. A mounting base 17 is fixedly installed at one end of the foot pad 15. A direction plate 18 is rotatably connected inside the mounting base 17. A lower limb rehabilitation component 16 is fixedly installed at the top of the direction plate 18. An upper limb rehabilitation component 11 is fixedly installed at one end of the fixed base 1. A control panel 14 is fixedly installed on the surface of the fixed base 1. The upper limb rehabilitation component 11 includes an upper limb rehabilitation frame 111 and a top plate 112. The top end of the upper limb rehabilitation frame 111 is fixedly connected to the bottom end of the top plate 112. Movable grooves 113 are provided in the middle of both sides of the top plate 112. Movable rods 114 are fixedly installed inside the two movable grooves 113. The middle of the two movable rods 114 is movably connected to a first rehabilitation mechanism 115. A push cylinder 116 is fixedly installed at one end of the top plate 112. A second rehabilitation mechanism 117 is fixedly installed at the movable end of the push cylinder 116.

[0020] The second rehabilitation mechanism 117 includes a push plate 1171 and two rigid springs 1172. The two sides of the bottom end of the push plate 1171 are fixedly connected to the top ends of the two rigid springs 1172 respectively. A connecting ring 1173 is fixedly installed at the bottom end of each of the two rigid springs 1172. A first pull ring 1174 is fixedly installed inside each of the two connecting rings 1173.

[0021] When in use, the patient lies down and pushes the cylinder 116 to extend and retract, pushing the push plate 1171 from one side to adjust the position of the second rehabilitation mechanism 117. The patient then pulls the first pull ring 1174 to complete the upper limb rehabilitation training.

[0022] One side of the push plate 1171 is fixedly connected to the push cylinder 116.

[0023] In use, the second rehabilitation facility 117 is mounted on one side of the push cylinder 116 via a push plate 1171.

[0024] Both first rehabilitation mechanisms 115 include a displacement block 1151 and a rotating shaft 1152. The bottom end of the displacement block 1151 is rotatably connected to the top end of the rotating shaft 1152. A pull rod 1153 is fixedly installed at the bottom end of the rotating shaft 1152, and a second pull ring 1154 is fixedly installed at the bottom end of one side of the pull rod 1153.

[0025] When in use, the patient is sitting and pulls the second pull ring 1154 with their hand. The second pull ring 1154 drives the pull rod 1153 to move synchronously. The pull rod 1153 rotates relative to the displacement block 1151 through the rotating shaft 1152, or the displacement block 1151 rotates relative to the movable rod 114 to complete the upper limb rehabilitation training.

[0026] The two displacement blocks 1151 are movably connected to the two movable rods 114 respectively.

[0027] In use, the first rehabilitation device 115 is mounted on the movable rod 114 via the displacement block 1151.

[0028] The lower limb rehabilitation device 16 includes a lower limb rehabilitation table 161 and two lower limb rehabilitation frames 164. The lower limb rehabilitation table 161 has lifting grooves 162 on both sides. Lifting blocks 163 are slidably connected inside the two lifting grooves 162. The opposite sides of the two lifting blocks 163 are fixedly connected to the opposite sides of the two lower limb rehabilitation frames 164. The bottom ends of the two lifting blocks 163 are fixedly installed with return springs 165. The bottom ends of the two return springs 165 are fixedly connected to the bottom ends of the inner walls of the two lifting grooves 162. The bottom end of the lower limb rehabilitation table 161 is fixedly connected to the direction plate 18.

[0029] When in use, the patient's leg is placed on the lower limb rehabilitation frame 164, and the patient's foot squeezes the lower limb rehabilitation frame 164. The lower limb rehabilitation frame 164 squeezes the reset spring 165. The reset spring 165 is elastic, and the elastic deformation of the reset spring 165 buffers the squeezing force, which facilitates the subsequent reset of the lower limb rehabilitation frame 164.

[0030] A mounting plate 3 is fixedly installed on one side of the fixed base 1. A first angle cylinder 4 is fixedly installed on the top of the mounting plate 3. A first sliding block 5 is movably connected to the movable end of the first angle cylinder 4. The first sliding block 5 is slidably connected to the chair back 6.

[0031] In use, the first angle cylinder 4 extends and retracts, and pushes the first sliding block 5 from the bottom. The first sliding block 5 slides along the backrest 6. Under the action of the sliding force, the backrest 6 deflects relative to the seat cushion 9.

[0032] A second angle cylinder 13 is fixedly installed on the other side of the fixed base 1. The movable end of the second angle cylinder 13 is movably connected to a second sliding block 12. The second sliding block 12 is slidably connected to the leg support plate 10.

[0033] In use, the second angle cylinder 13 extends and retracts, and pushes the second sliding block 12 from one side. The second sliding block 12 slides along the leg support plate 10, causing the leg support plate 10 to deflect relative to the seat cushion 9.

[0034] Lumbar support pads 7 are fixedly installed in the middle of both sides of the backrest 6, and two armrest pieces 8 are fixedly installed on the backrest 6 below the lumbar support pads 7.

[0035] When in use, the lumbar support pad 7 and the armrest 8 protect the patient's waist from both sides.

[0036] The four corners of the bottom of the fixed base 1 are all fixedly installed with casters 2.

[0037] When in use, the movable wheel 2 generates friction after contacting the ground, making it easy for the user to move the transport device.

[0038] In this invention, the patient sits on the seat cushion 9, and the first angle cylinder 4 performs a telescopic movement, pushing the first sliding block 5 from the bottom. The first sliding block 5 slides along the chair back 6, and under the action of the sliding force, the chair back 6 deflects relative to the seat cushion 9. The second angle cylinder 13 performs a telescopic movement. Pushing the second sliding block 12 from one side causes it to slide along the leg support plate 10, resulting in the leg support plate 10 deflecting relative to the seat cushion 9. The patient's legs are placed on the lower limb rehabilitation frame 164, and the patient's feet compress the lower limb rehabilitation frame 164, which in turn compresses the return spring 165. The return spring 165 is elastic, and its elastic deformation buffers the compressive force, facilitating the subsequent return of the lower limb rehabilitation frame 164. When the patient is sitting, pulling the second pull ring 1154 causes the pull rod 1153 to move synchronously. The pull rod 1153 rotates relative to the displacement block 1151 via the rotating shaft 1152, or the displacement block 1151 rotates relative to the movable rod 114, completing the upper limb rehabilitation training. When the patient lies down, pushing the cylinder 116 causes it to extend and retract, thus pushing the cylinder 1153 to extend and retract. 6. Pushing the push plate 1171 from one side adjusts the position of the second rehabilitation institution 117. The patient pulls the first pull ring 1174 to complete upper limb rehabilitation training. A three-dimensional pressure sensing module and a high-precision angle real-time acquisition encoder are installed on part of the foot pad 15. In bed position, passive flexion and extension of the lower limbs are completed to prevent deep vein thrombosis. In chair position, sitting weight-bearing simulated stepping, lower limb muscle awakening, and pre-standing pre-adaptation training are completed. One machine covers the full cycle of lower limb functional reconstruction needs. The entire control panel 14 has built-in posture linkage prediction algorithm, limb compliance force control adjustment model, and multi-module time-sharing scheduling logic. It automatically corrects the upper limb movement amplitude, lower limb gait stride and output assist torque in real time according to the current tilt angle of the bed and chair, eliminating joint sprains and postural imbalance caused by asynchronous posture switching and limb training. The whole process is flexible and controllable without rigid impact.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rehabilitation bed and chair system with upper and lower limbs, comprising a fixed base (1). Its features are: A seat cushion (9) is fixedly installed at the top of the fixed base (1). A chair back (6) is hinged to one end of the seat cushion (9). A leg support plate (10) is hinged to the other end of the seat cushion (9). A foot pad (15) is hinged to one end of the leg support plate (10). A mounting base (17) is fixedly installed at one end of the foot pad (15). A direction plate (18) is rotatably connected inside the mounting base (17). A lower limb rehabilitation component (16) is fixedly installed at the top of the direction plate (18). An upper limb rehabilitation component (11) is fixedly installed at one end of the fixed base (1). A control panel (14) is fixedly installed on the surface of the fixed base (1). The upper limb rehabilitation component (11) includes an upper limb rehabilitation frame (111) and a top plate (112). The top end of the upper limb rehabilitation frame (111) is fixedly connected to the bottom end of the top plate (112). Movable grooves (113) are provided in the middle of both sides of the top plate (112). Movable rods (114) are fixedly installed inside the two movable grooves (113). A first rehabilitation mechanism (115) is movably connected to the middle of the two movable rods (114). A push cylinder (116) is fixedly installed at one end of the top plate (112). A second rehabilitation mechanism (117) is fixedly installed at the movable end of the push cylinder (116).

2. The rehabilitation bed and chair system with upper and lower limbs according to claim 1, characterized in that: The second rehabilitation mechanism (117) includes a push plate (1171) and two rigid springs (1172). The two sides of the bottom end of the push plate (1171) are fixedly connected to the top ends of the two rigid springs (1172). A connecting ring (1173) is fixedly installed at the bottom end of each of the two rigid springs (1172). A first pull ring (1174) is fixedly installed inside each of the two connecting rings (1173).

3. A rehabilitation bed and chair system with upper and lower limbs according to claim 2, characterized in that: One side of the push plate (1171) is fixedly connected to the push cylinder (116).

4. A rehabilitation bed and chair system with upper and lower limbs according to claim 1, characterized in that: Both of the first rehabilitation mechanisms (115) include a displacement block (1151) and a rotating shaft (1152). The bottom end of the displacement block (1151) is rotatably connected to the top end of the rotating shaft (1152). A pull rod (1153) is fixedly installed at the bottom end of the rotating shaft (1152). A second pull ring (1154) is fixedly installed at the bottom end of one side of the pull rod (1153).

5. A rehabilitation bed and chair system with upper and lower limbs according to claim 4, characterized in that: The two displacement blocks (1151) are movably connected to the two movable rods (114) respectively.

6. A rehabilitation bed and chair system with upper and lower limbs according to claim 1, characterized in that: The lower limb rehabilitation device (16) includes a lower limb rehabilitation table (161) and two lower limb rehabilitation frames (164). The lower limb rehabilitation table (161) has lifting grooves (162) on both sides. Lifting blocks (163) are slidably connected inside the two lifting grooves (162). The opposite sides of the two lifting blocks (163) are fixedly connected to the opposite sides of the two lower limb rehabilitation frames (164). The bottom ends of the two lifting blocks (163) are fixedly installed with return springs (165). The bottom ends of the two return springs (165) are fixedly connected to the bottom ends of the inner walls of the two lifting grooves (162). The bottom end of the lower limb rehabilitation table (161) is fixedly connected to the direction plate (18).

7. A rehabilitation bed and chair system with upper and lower limbs according to claim 1, characterized in that: A mounting plate (3) is fixedly installed on one side of the fixed base (1), and a first angle cylinder (4) is fixedly installed on the top of the mounting plate (3). A first sliding block (5) is movably connected to the movable end of the first angle cylinder (4), and the first sliding block (5) is slidably connected to the backrest (6).

8. A rehabilitation bed and chair system with upper and lower limbs according to claim 1, characterized in that: A second angle cylinder (13) is fixedly installed on the other side of the fixed base (1). The movable end of the second angle cylinder (13) is movably connected to a second sliding block (12). The second sliding block (12) is slidably connected to the leg support plate (10).

9. A rehabilitation bed and chair system with upper and lower limbs according to claim 1, characterized in that: Lumbar support pads (7) are fixedly installed in the middle of both sides of the chair back (6), and two armrests (8) located below the lumbar support pads (7) are fixedly installed on the chair back (6).

10. A rehabilitation bed and chair system with upper and lower limbs according to claim 1, characterized in that: The fixed base (1) has four fixed casters (2) at its bottom corners.

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