Dailing device for patient with spinal injury

Abstract

The invention relates to a living device for a spinal injury patient. The living device comprises a bed body unit and a wheelchair unit, the core is a transferable bearing plate, sliding rails are arranged on the two sides of the transferable bearing plate, and the transferable bearing plate can be embedded into the first sliding grooves of the bed body unit or the second sliding grooves of the wheelchair unit in a sliding mode, so that the transferable bearing plate can be horizontally transferred between the bed body unit and the wheelchair unit; the transferable bearing plate comprises a back plate, a seat plate and a leg plate which are rotationally connected in sequence, and the transferable bearing plate can be freely switched between a prone position form and a sitting position form. The transferable bearing plate is used for bearing a patient to translate and transfer between the bed body unit and the wheelchair unit, manual carrying is replaced, original complex operation needing multiple professionals is simplified into a standardized process which can be completed by a single person, the labor intensity of nursing personnel is greatly reduced, and occupational injuries are avoided; functions of a bed, a wheelchair and a shifting machine are ingeniously integrated, basic forms and functions of the bed body and the wheelchair are not changed, and the bed is high in practicability and easy to popularize in families and medical institutions.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and more specifically, to a living device for patients with spinal cord injuries. Background Technology

[0002] Patients with spinal cord injuries, spinal cord lesions, or those recovering from major orthopedic surgery often face a prolonged period of bed rest and rehabilitation training. During this time, transferring patients between their beds and wheelchairs is the most frequent and challenging aspect of daily care. Due to their poor spinal stability and core muscle weakness, any improper handling can cause secondary spinal injury, joint dislocation, or internal fixation failure, with serious consequences.

[0003] Currently, the most common transfer methods used in clinical practice rely heavily on manual labor. Standard operating procedures require at least 2-3 trained nurses working together: one person is responsible for stabilizing and pulling the patient's head and neck to maintain axial stability; the others support the patient's shoulders, back, hips, and lower limbs, respectively, and perform the overall translation under unified commands. This method not only consumes a large amount of professional human resources and increases nursing costs, but also places extremely high demands on the operator's physical strength and skills, posing a risk of patient falls or spinal torsion due to coordination errors or insufficient strength. Furthermore, the frequent lifting and carrying movements can easily lead to occupational injuries such as lumbar muscle strain for the nurses themselves.

[0004] Therefore, there is an urgent need in this field for an integrated living device that can seamlessly connect hospital beds and wheelchairs, enabling patients with spinal injuries to be transferred smoothly with "zero lifting" and "zero shearing," and that is easy to operate, safe and reliable, and suitable for use in homes and medical institutions. Summary of the Invention

[0005] In view of this, the purpose of the present invention is to provide a living device for patients with spinal cord injuries, which aims to solve the problems existing in the prior art.

[0006] According to the present invention, a living device for a patient with spinal injury is provided, comprising a bed unit and a wheelchair unit; The bed unit includes a bed frame, a fixed bed board fixedly connected to the bed frame, and a transferable support plate slidably connected to the bed frame; the top of the bed frame is provided with two parallel and opposite first sliding grooves; The wheelchair unit includes a frame, on which two parallel and opposite second sliding grooves are provided, the height of the second sliding grooves being adapted to the height of the first sliding groove; The movable support plate is provided with slide rails on both sides, and can be slidably fitted into the first slide groove or the second slide groove through the slide rails, so that the movable support plate can be horizontally moved between the bed unit and the wheelchair unit; The transferable support plate includes a back plate, a seat plate, and a leg plate that are rotatably connected in sequence; the transferable support plate has a lying posture in which the back plate, seat plate, and leg plate are in the same plane, or a sitting posture in which the back plate rotates upward and the leg plate rotates downward.

[0007] Preferably, the slide rail is a segmented rack, including a first rack segment on the back plate, a second rack segment on the seat plate, and a third rack segment on the leg plate; when the transferable support plate is in a horizontal position, the first rack segment, the second rack segment, and the third rack segment are spliced ​​together to form a continuous complete rack.

[0008] Preferably, the first slide groove is provided with a drive gear and a first drive motor for driving the drive gear near its front end; the drive gear can mesh with the rack of the slide rail to drive the movable support plate to slide.

[0009] Preferably, a second drive motor and a third drive motor are respectively provided at the front and rear ends below the seat plate. The second drive motor and the third drive motor are respectively connected to the leg plate and the back plate for driving them to rotate.

[0010] Preferably, a mechanical limiting mechanism is provided at the rotatable connection between the back plate and the seat plate, and between the seat plate and the leg plate, for locking the angle between the plates in the sitting posture and the lying posture.

[0011] Preferably, the mechanical limiting mechanism is a retractable limiting pin; the second drive motor and the third drive motor are integrated with angle encoders to achieve closed-loop control of the rotation angle.

[0012] Preferably, a first side plate, a second side plate, and a third side plate are respectively provided on both sides of the seat plate, the back plate, and the leg plate in the width direction. The front and rear ends of the outer side of the first side plate are respectively provided with a first hinge groove. The ends of the inner side of the second side plate and the inner side of the third side plate are respectively provided with a second hinge groove and a third hinge groove. The third side plate and the second side plate are respectively connected to the first hinge grooves at both ends of the first side plate through the third hinge groove and the second hinge groove. The second and third side plates are respectively provided with a limiting pin at the end connected to the first side plate. The front and rear ends of the first side plate are respectively provided with two limiting holes. The limiting pin can be inserted into one of the limiting holes to lock the plate angle in the sitting or lying position.

[0013] Preferably, the first slide groove is provided with a first locking mechanism, the second slide groove is provided with a second locking mechanism, the first locking mechanism and the second locking mechanism are retractable locking pins, and the slide rail is provided with a first locking hole and a second locking hole that are respectively connected to the first locking mechanism and the second locking mechanism.

[0014] Preferably, the front end of the first slide groove is provided with a guide groove for guiding the slide rail.

[0015] Preferably, the wheelchair unit has two drive wheels and two steering wheels at the bottom of its frame. The drive wheels are driven by hub motors, and the steering wheels are driven by steering motors. The frame is equipped with control handles for controlling the steering wheels and the drive wheels.

[0016] The living device for patients with spinal injuries provided by this invention uses a transferable support plate to carry the patient between the bed unit and the wheelchair unit for translational transfer, replacing manual handling and avoiding spinal torsion and shearing forces during manual handling. It simplifies the complex operation that originally required multiple professionals into a standardized process that can be completed by a single person, greatly reducing the labor intensity of nursing staff and avoiding occupational injuries. This invention ingeniously combines the functions of a bed, wheelchair, and transfer machine into one, without changing the basic form and function of the bed and wheelchair, making it highly practical and easy to promote in homes and medical institutions. Attached Figure Description

[0017] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the invention with reference to the accompanying drawings.

[0018] Figure 1 A three-dimensional structural schematic diagram of a living device for patients with spinal injuries according to an embodiment of the present invention is shown.

[0019] Figure 2 A schematic diagram of the structure of a transferable support plate to a wheelchair unit according to an embodiment of the present invention is shown.

[0020] Figure 3 A schematic diagram of the structure is shown, illustrating the transferable support plate of the present invention being transferred to the wheelchair unit and adjusted to a sitting posture.

[0021] Figure 4 A three-dimensional structural diagram of the bed unit according to an embodiment of the present invention is shown when the transferable support plate is removed.

[0022] Figure 5 A three-dimensional structural diagram of a transferable support plate in a seated position, according to an embodiment of the present invention, is shown.

[0023] Figure 6 for Figure 5A magnified view of a portion of point A in the middle.

[0024] Figure 7 A three-dimensional structural diagram of a transferable support plate in a horizontal position according to an embodiment of the present invention is shown.

[0025] Figure 8 A three-dimensional structural schematic diagram of a wheelchair unit according to an embodiment of the present invention is shown.

[0026] Figure 9 A schematic diagram of the mechanical limiting mechanism according to an embodiment of the present invention is shown.

[0027] Figure 10 A schematic diagram of the guide groove at the front end of the first chute according to an embodiment of the present invention is shown.

[0028] In the diagram: 1. Bed unit; 11. Bed frame; 12. Fixed bed board; 13. First slide rail; 131. Guide rail; 132. First limiting baffle; 14. Drive gear; 141. First drive motor; 15. First locking mechanism; 2. Wheelchair unit; 21. Frame; 22. Second slide rail; 23. Second locking mechanism; 24. Drive wheel; 241. Hub motor; 25. Steering wheel; 251. Steering motor; 26. Control handle; 3. Transferable support plate; 31 311. Back plate; 32. Second side plate; 33. Seat plate; 34. First side plate; 35. Limiting hole; 36. Second limiting baffle; 37. Leg plate; 38. Third side plate; 39. Slide rail; 30. First locking hole; 31. Second locking hole; 32. First rack segment; 33. Second rack segment; 34. Third rack segment; 35. Second drive motor; 36. Third drive motor; 37. Limiting pin; 37. Pin cylinder; 37. Elastic element. Detailed Implementation

[0029] Various embodiments of the invention will now be described in more detail with reference to the accompanying drawings. In the various drawings, the same elements are indicated by the same or similar reference numerals. For clarity, the various parts in the drawings are not drawn to scale.

[0030] This invention provides a living device for patients with spinal cord injuries, see below. Figure 1This living arrangement for spinal cord injury patients includes a bed unit 1 and a wheelchair unit 2. The bed unit 1 includes a bed frame 11, a fixed bed board 12 fixedly connected to the bed frame 11, and a movable support plate 3 slidably connected to the bed frame 11. The top of the bed frame 11 has two parallel and opposing first sliding grooves 13. The wheelchair unit 2 includes a frame 21 with two parallel and opposing second sliding grooves 22, the height of which is adapted to the height of the first sliding grooves 13. The movable support plate 3 has slide rails 34 on both sides, which slidably engage with the first sliding groove 13 or the second sliding groove 22, allowing the movable support plate 3 to move horizontally between the bed unit 1 and the wheelchair unit 2. (See also...) Figure 5 and Figure 7 The movable support plate 3 includes a back plate 31, a seat plate 32, and a leg plate 33 that are rotatably connected in sequence; the movable support plate 3 has a lying posture in which the back plate 31, the seat plate 32, and the leg plate 33 are in the same plane, or a sitting posture in which the back plate 31 rotates upward and the leg plate 33 rotates downward.

[0031] When the patient needs to lie down, the movable support plate 3 is adjusted to a lying position. The backrest 31, seat 32, and leg rest 33 are adjusted to be on the same horizontal plane and connected to the first slide groove 13 via the slide rails 34 on both sides. The movable support plate 3, as part of the bed board, is assembled with the fixed bed board 12 to form a complete bed surface for the patient to lie flat. When the patient needs to sit in a wheelchair, the movable support plate 3 slides horizontally onto the frame 21 and is connected to the second slide groove 22 via the slide rails 34 on both sides. When the middle part of the slide rails 34 of the movable support plate 3 moves into the second slide groove 22, the movable support plate 3 can be adjusted to a sitting position. In this position, the backrest 31 rotates upward relative to the seat 32 by a certain angle (e.g., 80°) to form a backrest, and the leg rest 33 rotates downward relative to the seat 32 by a certain angle (e.g., 75°) to form a leg rest and lower leg support. At this time, the movable support plate 3 transforms into the main body of the wheelchair seat.

[0032] Specifically, such as Figure 4The bed frame 11 in the bed unit 1 is constructed from high-strength metal profiles through welding or bolting, resulting in a stable structure. The dimensions of the bed frame 11 conform to standard medical bed specifications, typically approximately 2000mm in length and 900mm in width. Two first sliding grooves 13 are fixedly installed longitudinally at the top of the bed frame 11. These two first sliding grooves 13 are parallel to each other and spaced at a predetermined distance, with their openings facing each other. The length of the two first sliding grooves 13 is consistent with the length of the transferable support plate 3. The cross-section of the first sliding groove 13 is U-shaped, and a wear-resistant, low-friction material, such as nylon lining, can be installed on the inner side. The distance between the two first sliding grooves 13 matches the width of the transferable support plate 3; specifically, the distance between the two first sliding grooves 13 is adapted to the shoulder width of a human body, typically between 450mm and 550mm. The fixed bed board 12 has a U-shaped structure, and its surface is made of medical fire-resistant board material, suitable for laying a standard mattress. The slide rail 34 of the movable support plate 3 in the lying position is embedded in the first slide groove 13, allowing it to slide horizontally along the first slide groove 13. When the movable support plate 3 slides to the innermost side (head direction), its front end is flush with the front end of the fixed bed board 12 (tail direction), forming a complete bed surface together with the fixed bed board 12.

[0033] Furthermore, the slide rail 34 is a segmented rack, including a first rack segment 341 on the back plate 31, a second rack segment 342 on the seat plate 32, and a third rack segment 343 on the leg plate 33; when the movable support plate 3 is in a lying position, the first rack segment 341, the second rack segment 342, and the third rack segment 343 are spliced ​​together to form a continuous complete rack. A drive gear 14 and a first drive motor 141 for driving the drive gear 14 are provided near the front end of the first slide groove 13; the drive gear 14 can mesh with the rack of the slide rail 34 to drive the movable support plate 3 to slide along the first slide groove 13. Specifically, the first drive motor 141 is preferably a low-speed, high-torque DC geared motor, some teeth of the drive gear 14 extend into the first slide groove 13, and the first drive motor 141 is powered by a first battery module mounted on the bed frame 11. A first control panel is located in an easily accessible position on one side of the bed frame 11. The first control panel is equipped with physical buttons or touch buttons such as "Forward", "Backward", and "Stop" to control the forward and reverse rotation and start and stop of the first drive motor 141.

[0034] The portable support plate 3 is the direct interface for supporting the patient, and its structural strength and safety are of paramount importance. The back plate 31, seat plate 32, and leg plate 33 of the portable support plate 3 can be made of high-strength aluminum alloy sheet, and an aluminum alloy reinforcing frame can be set at the bottom to ensure its strength. The support surfaces of the back plate 31, seat plate 32, and leg plate 33 are covered with a medical-grade ABS plastic shell, with ventilation holes and reserved interfaces for installing soft pads.

[0035] Specifically, a first side plate 321, a second side plate 311, and a third side plate 331 are respectively provided on both sides of the seat plate 32, back plate 31, and leg plate 33 in the width direction. A first rack segment 341, a second rack segment 342, and a third rack segment 343 are respectively fixedly connected to the second side plate 311, the first side plate 321, and the third side plate 331. A first hinge groove is provided at both the front and rear ends of the outer side surface of the first side plate 321. A second hinge groove and a third hinge groove are respectively provided at the ends of the inner side surfaces of the second side plate 311 and the third side plate 331. The third side plate 331 and the second side plate 311 are connected to the first hinge grooves at both ends of the first side plate 321 through the third hinge groove and the second hinge groove, respectively. The first side plate 321, the second side plate 311, and the third side plate 331 have the same thickness. The depth of the first hinge groove is half the thickness of the first side plate 321, the thickness of the second hinge groove is half the thickness of the second side plate 311, and the thickness of the third hinge groove is half the thickness of the third side plate 331. After the third side plate 331 and the second side plate 311 are connected to the first hinge grooves at both ends of the first side plate 321 through the third hinge groove and the second hinge groove, the inner and outer sides of the third side plate 331 and the second side plate 311 are flush with the inner and outer sides of the first side plate 321. The rack is a straight rack with hardened tooth surfaces to increase wear resistance. Each rack segment is precision ground at the joint where the plates rotate. When the transferable bearing plate 3 is in a horizontal position, the tooth pitch of the three rack segments is continuous, ensuring smooth meshing with the drive gear 14 without impact or jamming.

[0036] Furthermore, a second drive motor 35 and a third drive motor 36 are respectively provided at the front and rear ends below the seat plate 32. The second drive motor 35 and the third drive motor 36 are respectively connected to the leg plate 33 and the back plate 31 for driving their rotation. Both the second drive motor 35 and the third drive motor 36 are servo motors or stepper motors with integrated planetary reducers and angle encoders, which can realize closed-loop control of the rotation angle. Specifically, the leg plate 33 and the back plate 31 are rotatably connected to the front and rear ends of the seat plate 32 through a first hinge shaft and a second hinge shaft, respectively. The output shafts of the second drive motor 35 and the third drive motor 36 can be connected to the first hinge shaft and the second hinge shaft, respectively, to drive the leg plate 33 and the back plate 31 to rotate relative to the seat plate 32. In a preferred embodiment, worm gears can be fixedly connected to the first and second hinge shafts respectively. The worm gears mesh with a worm, forming a worm gear pair. The second drive motor 35 and the third drive motor 36 can be connected to the first and second hinge shafts respectively through a worm gear pair, driving the leg plate 33 and the back plate 31 to rotate. Through the deceleration and self-locking characteristics of the worm gear pair, the leg plate 33 or the back plate 31 is driven to rotate slowly and smoothly upwards or downwards. The self-locking characteristic of the worm gear means that when the motor is powered off, the angle of the leg plate 33 and the back plate 31 will be naturally locked, preventing them from swinging back due to external force.

[0037] The second drive motor 35 and the third drive motor 36 are powered by a second battery module installed below the seat plate 32. A second control panel is provided in an easily accessible position on the back panel 31. The second control panel is equipped with physical buttons or touch buttons for "raise back panel 31", "lower back panel 31", "lower leg panel 33", "raise leg panel 33", and "reset (lie flat)" to control the forward and reverse rotation of the second drive motor 35 and the third drive motor 36 and to rotate them to their initial positions, so that patients or caregivers can adjust their sitting posture after transfer.

[0038] Furthermore, a mechanical limiting mechanism is provided at the rotatable connection between the back plate 31 and the seat plate 32, and between the seat plate 32 and the leg plate 33, for locking the inter-plate angle in the sitting and lying positions. Specifically, the mechanical limiting mechanism is a retractable limiting pin 371. The second side plate 311 and the third side plate 331 are each provided with a limiting pin 371 at one end connected to the first side plate 321. The first side plate 321 has two limiting holes 3211 at its front and rear ends, and the limiting pin 371 can be inserted into one of the limiting holes 3211 to lock the inter-plate angle in the sitting or lying position.

[0039] like Figure 9As shown, taking the mechanical limiting mechanism at the rotatable connection between the back plate 31 and the seat plate 32 as an example, the structure of the mechanical limiting mechanism is explained. A pin hole is transversely provided on the second side plate 311 of the back plate 31. A pin cylinder 372 is coaxially provided on the outer side surface of the second side plate 311 with the pin hole. An end plate is provided at the outer end of the pin cylinder 372. A through hole is provided on the end plate. A limiting pin 371 is provided in the pin cylinder 372. A baffle is provided in the middle of the limiting pin 371. An elastic element 373 is provided between the baffle and the end plate of the pin cylinder 372. The elastic element 373 is a cylindrical helical compression spring. The outer end of the limiting pin 371 extends to the outside of the pin cylinder 372 through the through hole on the end plate. A round plate is provided at the end of the limiting pin 371 outside the pin cylinder 372 for easy lifting by hand. When the pin hole on the second side plate 311 aligns with one of the limiting holes 3211 on the first side plate 321, the limiting pin 371 is pushed into the limiting hole 3211 under the action of the elastic element 373, thereby locking the angle between the second side plate 311 and the first side plate 321 through the limiting pin 371. When the two limiting holes 3211 at one end of the first side plate 321 are respectively aligned with the pin hole on the second side plate 311, the movable support plate 3 is in a horizontal position and a sitting position, respectively. When it is necessary to change the position, the limiting pin 371 can be manually pulled to disengage it from the limiting hole 3211, thereby releasing the limitation.

[0040] In the wheelchair unit 2, the frame 21 is welded from lightweight metal profiles to ensure strength. (See also...) Figure 8 Two armrests are arranged parallel to each other on the left and right sides above the frame 21. Two second sliding grooves 22 are fixedly connected to the lower inner sides of the two armrests. The cross-sectional shape and size of the second sliding groove 22 are exactly the same as those of the first sliding groove 13, ensuring that the slide rail 34 can be connected without difference. The installation height of the second sliding groove 22 has been strictly calculated and adjusted to ensure that when the wheelchair unit 2 is connected to the bed unit 1, the bottom of the first sliding groove 13 and the second sliding groove 22 are at the same horizontal level, and the center lines of the grooves are precisely aligned.

[0041] The wheelchair unit 2 has two drive wheels 24 and two steering wheels 25 at the bottom of its frame 21. The drive wheels 24 are driven by hub motors 241, and the steering wheels 25 are driven by steering motors 251. A control handle 26 is provided on the frame 21 to control the steering of the steering wheels 25 and the rotation of the drive wheels 24. Specifically, the two steering wheels 25 are mounted on the front bottom of the frame 21, and the two drive wheels 24 are mounted on the rear bottom of the frame 21. A third control panel is provided at the front end of one of the armrests, integrating the control handle 26 for controlling the movement of the wheelchair (forward, backward, steering, speed adjustment). The hub motors 241 and steering motors 251 are powered by a third battery module installed within the frame 21.

[0042] Furthermore, a first locking mechanism 15 is provided on the first slide groove 13, and a second locking mechanism 23 is provided on the second slide groove 22. The first locking mechanism 15 and the second locking mechanism 23 are retractable locking pins. The slide rail 34 is provided with a first locking hole 3401 and a second locking hole 3402 that respectively cooperate and connect with the first locking mechanism 15 and the second locking mechanism 23. Specifically, the first locking mechanism 15 is located near the front end of the first slide groove 13, and the first locking hole 3401 is located at a corresponding position on the third rack segment 343; the second locking mechanism 23 is located near the front end of the second slide groove 22, and the second locking hole 3402 is located at a corresponding position on the second rack segment 342. The structure of the first locking mechanism 15 and the second locking mechanism 23 can be such that the locking pin is driven to retract and move by an electric push rod, so that the locking pin is inserted into the limiting hole 3211 to lock and fix the transferable support plate 3. The first slide rail 13 has a first limiting baffle 132 at its rear end. When the rear end of the slide rail 34 of the movable bearing plate 3 abuts against the first limiting baffle 132, the first locking hole 3401 is aligned with the locking pin of the first locking mechanism 15. At this time, the movable bearing plate 3 can be locked and fixed on the first slide rail 13 by the first locking mechanism 15. Figure 6 As shown, a second limiting baffle 322 is provided above the rear end of the second rack segment 342. When the slide rail 34 of the movable support plate 3 slides along the second slide groove 22 until the second limiting baffle 322 abuts against the rear end of the second slide groove 22, the second locking hole 3402 is aligned with the locking hole of the second locking mechanism 23. At this time, the movable support plate 3 can be locked and fixed on the second slide groove 22 by the second locking mechanism 23. In this embodiment, the first control panel and the third control panel are respectively provided with physical buttons or touch buttons for controlling the extension and retraction of the first locking mechanism 15 and the second locking mechanism 23.

[0043] Furthermore, to facilitate the smooth entry of the slide rail 34 of the movable support plate 3 into the first slide groove 13, a guide groove 131 for guiding the slide rail 34 is provided at the front end of the first slide groove 13. See also Figure 10 The guide groove 131 is flared, with an open structure on the inner side in the horizontal direction. When the caregiver pushes the wheelchair unit 2 close to the front end of the bed unit 1, it only needs to be roughly aligned, and the slide rail 34 of the transferable support plate 3 will automatically slide into the first slide groove 13 under the guidance of the guide groove 131 during the transfer. It can be understood that the rear end of the second slide groove 22 can also be provided with a guide groove 131.

[0044] The living area unit can also be equipped with a handheld wireless remote control, which wirelessly connects to the first, second, and third control panels. Caregivers can use this handheld wireless remote control to perform all operations from the optimal observation position (such as from the patient's side).

[0045] Combination Figures 1 to 3 Taking the transfer of a patient from bed unit 1 to wheelchair unit 2 as an example, the working process of this device will be explained in detail: The patient lies supine on bed unit 1, with their torso positioned on the transferable support plate 3. Wheelchair unit 2 is pushed to the front (foot) of bed unit 1, roughly aligned. The caregiver, using the first control panel or a handheld wireless remote, controls the first locking mechanism 15 to release the lock on slide rail 34, then controls the first drive motor 141 to start smoothly, driving the drive gear 14 to engage with the racks on both sides of the transferable support plate 3, smoothly and at a constant speed pushing the transferable support plate 3, carrying the patient, from the first slide groove 13 of bed frame 11 into the second slide groove 22 of wheelchair unit 2 frame 21. Throughout the transfer, the patient only experiences horizontal movement without any bumps or tilting. After the transferable support plate 3 is in place in the second slide groove 22, the caregiver, using the third control panel or a handheld wireless remote, controls the second locking mechanism 23 to lock slide rail 34 onto the second slide groove 22. Then, the caregiver controls the backrest 31 to rotate upwards and the leg rest 33 to rotate downwards via the second control panel or a handheld wireless remote. Once both the backrest 31 and leg rest 33 are in position, the angle of the panels is locked by a mechanical limiting mechanism. At this point, the patient is in a comfortable and stable sitting position, and the transfer process is successfully completed. The patient can then drive or be pushed by someone else to move freely in the wheelchair. The process of transferring the patient from wheelchair unit 2 to bed unit 1 is the reverse.

[0046] In summary, the living device for spinal injury patients provided by this invention uses a transferable support plate to carry the patient between the bed unit and the wheelchair unit, replacing manual transport and avoiding spinal torsion and shearing forces during manual transport. It simplifies the complex operation that originally required multiple professionals into a standardized process that can be completed by a single person, greatly reducing the labor intensity of nursing staff and avoiding occupational injuries. This invention ingeniously combines the functions of a bed, wheelchair, and transfer machine into one, without changing the basic form and function of the bed and wheelchair, making it highly practical and easy to promote in homes and medical institutions.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used merely 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 a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A living device for patients with spinal cord injuries, characterized in that, Includes bed unit and wheelchair unit; The bed unit includes a bed frame, a fixed bed board fixedly connected to the bed frame, and a transferable support plate slidably connected to the bed frame; the top of the bed frame is provided with two parallel and opposite first sliding grooves; The wheelchair unit includes a frame, on which two parallel and opposite second sliding grooves are provided, the height of the second sliding grooves being adapted to the height of the first sliding groove; The movable support plate is provided with slide rails on both sides, and can be slidably fitted into the first slide groove or the second slide groove through the slide rails, so that the movable support plate can be horizontally moved between the bed unit and the wheelchair unit; The transferable support plate includes a back plate, a seat plate, and a leg plate that are rotatably connected in sequence; the transferable support plate has a lying posture in which the back plate, seat plate, and leg plate are in the same plane, or a sitting posture in which the back plate rotates upward and the leg plate rotates downward.

2. The living device for patients with spinal injuries according to claim 1, characterized in that, The slide rail is a segmented rack, including a first rack segment on the back plate, a second rack segment on the seat plate, and a third rack segment on the leg plate; when the transferable support plate is in a horizontal position, the first rack segment, the second rack segment, and the third rack segment are spliced ​​together to form a continuous complete rack.

3. The living device for patients with spinal injuries according to claim 2, characterized in that, The first slide is provided with a drive gear and a first drive motor for driving the drive gear near its front end; the drive gear can mesh with the rack of the slide rail to drive the movable support plate to slide.

4. The living device for patients with spinal injuries according to claim 1, characterized in that, A second drive motor and a third drive motor are respectively provided at the front and rear ends below the seat plate. The second drive motor and the third drive motor are respectively connected to the leg plate and the back plate to drive them to rotate.

5. The living device for patients with spinal injuries according to claim 4, characterized in that, A mechanical limiting mechanism is provided at the rotatable connection between the back plate and the seat plate, and between the seat plate and the leg plate, for locking the angle between the plates in the sitting and lying positions.

6. The living device for patients with spinal injuries according to claim 5, characterized in that, The mechanical limiting mechanism is a retractable limiting pin; the second and third drive motors are integrated with angle encoders to achieve closed-loop control of the rotation angle.

7. The living device for patients with spinal injuries according to claim 6, characterized in that, The seat plate, the back plate, and the leg plate are respectively provided with a first side plate, a second side plate, and a third side plate on both sides in the width direction. The front and rear ends of the outer side of the first side plate are respectively provided with a first hinge groove. The ends of the inner side of the second side plate and the inner side of the third side plate are respectively provided with a second hinge groove and a third hinge groove. The third side plate and the second side plate are respectively connected to the first hinge grooves at both ends of the first side plate through the third hinge groove and the second hinge groove. The second and third side plates are respectively provided with a limiting pin at the end connected to the first side plate. The front and rear ends of the first side plate are respectively provided with two limiting holes. The limiting pin can be inserted into one of the limiting holes to lock the plate angle in the sitting or lying position.

8. The living device for patients with spinal injuries according to claim 1, characterized in that, The first slide groove is provided with a first locking mechanism, and the second slide groove is provided with a second locking mechanism. The first locking mechanism and the second locking mechanism are retractable locking pins. The slide rail is provided with a first locking hole and a second locking hole that are respectively connected to the first locking mechanism and the second locking mechanism.

9. The living device for patients with spinal injuries according to claim 1, characterized in that, The front end of the first slide groove is provided with a guide groove for guiding the slide rail.

10. The living device for patients with spinal injuries according to claim 1, characterized in that, The wheelchair unit has two drive wheels and two steering wheels at the bottom of its frame. The drive wheels are driven by hub motors, and the steering wheels are driven by steering motors. The frame is equipped with control handles for controlling the steering wheels and the drive wheels.

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