A device for the transfer and care of paralysed patients

Abstract

This invention relates to the field of medical device technology, and particularly to a device for the transfer and care of paralyzed patients. The device includes a frame, a lifting mechanism, and a transfer mattress. The lifting mechanism includes a U-shaped plate with symmetrical slots on both sides. A dual-axis extension motor is mounted on the U-shaped plate. The two output shafts of the dual-axis extension motor are connected to a positive threaded rod and a negative threaded rod. Adjusting rods are threaded onto and connected to both the positive and negative threaded rods. The two ends of the adjusting rods pass through the two slots and are equipped with hydraulic cylinders that can extend and retract vertically to raise or lower the transfer mattress. Insertion rods are located at the lower ends of the hydraulic cylinders. Insertion holes are located on both sides of the transfer mattress corresponding to the insertion rod positions. The dual-axis extension motor drives the positive and negative threaded rods to rotate forward, causing the two adjusting rods to move towards each other along the slots, allowing the insertion rods to insert into the insertion holes, thereby securing the transfer mattress. This invention prevents the patient from shaking or falling during transfer and completely eliminates the need for manual handling, making it convenient to use.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a device for the transfer and care of paralyzed patients. Background Technology

[0002] Paralysis is a reduction or loss of voluntary motor function, a common symptom of the nervous system, caused by diseases of the nerves, neuromuscular junctions, or muscles. Paralyzed patients, due to severe spinal cord injury, are unable to move their limbs and have no sensation. Therefore, assistive devices are needed to facilitate the transport of paralyzed patients. Existing hoisting and transfer devices for high-level paralysis patients have the following drawbacks:

[0003] 1. Existing hoisting devices use motors to directly drive and maintain the hoisting height after lifting the patient. This method of maintaining the height causes the motor to be subjected to force for a long time, which will put a certain load on the motor. At the same time, it will also cause the patient to be unstable after hoisting, and the patient may fall off because the motor cannot bear the load.

[0004] 2. Existing hoisting methods all use ropes for hoisting. After hoisting, during the transfer process, the hoisted patient will sway under the action of the ropes, resulting in instability and making accidents more likely.

[0005] 3. Existing hoisting methods require manually moving the patient onto the hoisting platform, which is quite troublesome and may also cause harm to the patient. Summary of the Invention

[0006] To address the aforementioned problems, the present invention aims to provide a device for the transfer and care of paralyzed patients, which can prevent patients from shaking or falling off during the transfer process and completely eliminates the need for manual handling, making it convenient to use.

[0007] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0008] A transfer and nursing device for paralyzed patients, comprising a vehicle frame and a lifting mechanism mounted on the vehicle frame, further comprising a transfer mattress arranged in a supporting manner with the lifting mechanism. The lifting mechanism comprises a U-shaped plate mounted on the top surface of the vehicle frame. Both sides of the open end of the U-shaped plate are symmetrically provided with strip-shaped openings extending along the length direction of the U-shaped plate. A double-shaft motor is mounted on the closed end of the U-shaped plate. Two output shafts of the double-shaft motor are respectively connected with a positive threaded rod and a reverse threaded rod through couplings. Adjusting rods are sleeved on and threadedly connected to both the positive threaded rod and the reverse threaded rod. Two ends of the adjusting rod pass through the two strip-shaped openings, and hydraulic cylinders capable of lifting or lowering the transfer mattress through up-and-down telescoping are arranged at both ends of the adjusting rod. An insertion rod extending towards the transfer mattress is arranged at the lower end of the hydraulic cylinder; insertion holes for inserting the insertion rod are arranged at positions corresponding to the insertion rods on both sides of the transfer mattress. When the hydraulic cylinder is extended until the insertion rod corresponds to the insertion hole position, the double-shaft motor drives the positive threaded rod and the reverse threaded rod to rotate forward, driving the two adjusting rods to move towards the middle of the strip-shaped opening respectively, so that the insertion rod is inserted into the insertion hole, thereby fixing the transfer mattress, or driving the positive threaded rod and the reverse threaded rod to rotate reversely, driving the two adjusting rods to move towards both ends of the strip-shaped opening respectively, so that the insertion rod is separated from the insertion hole, thereby loosening the transfer mattress.

[0009] Preferably, the transfer mattress comprises a bottom plate and a movable plate hinged to one side of the top of the bottom plate. Slide grooves are arranged on both sides of the bottom plate below the movable plate. A plurality of gaps arranged along the length direction of the slide groove are arranged on the bottom wall of the slide groove; support bars are hinged to both sides of the movable plate, and a clamping portion capable of being clamped with the gap is convexly arranged at one end of the support bar far away from the movable plate. The included angle between the movable plate and the bottom plate is adjusted by clamping the clamping portion in different gaps.

[0010] Preferably, the shape of the gap is arc-shaped, and the shape of the clamping portion is cylindrical.

[0011] Preferably, the vehicle frame comprises two brackets and handrails fixedly connected to both ends of the two brackets respectively. The two brackets are respectively fixedly connected to both sides of the bottom of the U-shaped plate, and a plurality of universal wheels are arranged at the bottom of the brackets.

[0012] Preferably, a reinforcing bar connecting the two brackets is arranged below the handrail.

[0013] Preferably, the bracket comprises a wooden square frame and a plurality of aluminum alloy columns arranged in the square frame along the length direction of the square frame.

[0014] Preferably, limit switches electrically connected to the double-shaft motor are arranged on both sides of the U-shaped plate where the adjusting rod is located.

[0015] Preferably, limit blocks for restricting the left-right movement of the adjusting rod are arranged on both sides of the U-shaped plate on the adjusting rod.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The device for transferring and caring for paralyzed patients provided by the present invention uses a hydraulic cylinder that can extend and retract vertically for hoisting. Compared with hoisting by directly using a motor drive, it can provide greater pulling force with the same motor output power, thereby reducing the load on the motor and reducing the failure rate. Moreover, since hydraulic transmission can achieve backlash-free transmission, the hoisting process is more stable, less labor-intensive, and faster.

[0018] 2. The device for transferring and caring for paralyzed patients provided by this invention allows the patient to lie on the transfer mattress as a regular mattress while waiting for transfer, when no transfer is needed. When transfer is required, the positive and negative threaded rods are driven to rotate in the forward direction by a dual-axis extension motor, which drives two adjusting rods to move towards each other along the strip opening, so that the insertion rod is inserted into the insertion hole, thereby fixing the transfer mattress. Then, the mattress is lifted by a hydraulic cylinder. The entire process completely eliminates the step of manually moving the patient, making it convenient to use. Attached Figure Description

[0019] Figure 1 This is an overall schematic diagram of the transfer state of the present invention;

[0020] Figure 2 yes Figure 1 3D exploded view;

[0021] Figure 3 This is a front view of the transfer state of the present invention;

[0022] Figure 4 This is a top view of the transfer state of the present invention;

[0023] Figure 5 This is a side view of the transfer state of the present invention;

[0024] Figure 6 This is a partial schematic diagram of the transfer mattress of the present invention.

[0025] In the attached diagram: 1. Frame; 11. Bracket; 12. Handrail; 13. Casters; 14. Reinforcing strip; 2. Lifting mechanism; 21. U-shaped plate; 211. Strip opening; 22. Dual-axis extension motor; 221. Positive threaded rod; 222. Negative threaded rod; 23. Adjusting rod; 231. Limit block; 24. Hydraulic cylinder; 25. Insert rod; 26. Limit switch; 3. Transfer mattress; 31. Base plate; 311. Slide groove; 312. Notch; 32. Movable plate; 33. Support strip; 331. Snap-fit ​​part. Detailed Implementation

[0026] The technical solution of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this invention.

[0027] In the description of this invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] See attached document Figure 1-5This embodiment provides a device for transferring and caring for paralyzed patients, including a frame 1 and a lifting mechanism 2 mounted on the frame 1, and a transfer mattress 3 matched with the lifting mechanism 2. The lifting mechanism 2 includes a U-shaped plate 21 mounted on the top surface of the frame 1. The open end of the U-shaped plate 21 has symmetrically opened strip-shaped openings 211 extending along the length of the U-shaped plate 21 on both sides. A dual-axis extension motor 22 is installed on the closed end of the U-shaped plate 21. The two output shafts of the dual-axis extension motor 22 are respectively connected to a positive thread rod 221 and a negative thread rod 222 through a coupling. An adjusting rod 23 is sleeved and threaded onto both the positive thread rod 221 and the negative thread rod 222. The two ends of the adjusting rod 23 pass through the two strip-shaped openings 211, and the two ends of the adjusting rod 23 are provided with A hydraulic cylinder 24, which can extend and retract vertically to lift or lower the transfer mattress 3, is provided at the lower end of the hydraulic cylinder 24 with a rod 25 extending toward the transfer mattress 3. The transfer mattress 3 has insertion holes on both sides corresponding to the positions of the rod 25 for inserting the rod 25. When the hydraulic cylinder 24 is extended until the position of the rod 25 corresponds to the position of the insertion hole, the dual-axis extension motor 22 drives the positive thread rod 221 and the negative thread rod 222 to rotate in the forward direction, driving the two adjusting rods 23 to move toward the middle of the strip opening 211, so that the rod 25 is inserted into the insertion hole, thereby fixing the transfer mattress 3. Alternatively, the positive thread rod 221 and the negative thread rod 222 can be driven to rotate in the opposite direction, driving the two adjusting rods 23 to move toward the two ends of the strip opening 211, so that the rod 25 is disengaged from the insertion hole, thereby releasing the transfer mattress 3.

[0030] See attached document Figure 6 In another embodiment, considering that the transfer mattress 3 can be used as a regular mattress for a long time when not being transported, in order to improve the comfort of the paralyzed patient, the transfer mattress 3 can be configured to include a base plate 31 and a movable plate 32 hinged to the top side of the base plate 31. The base plate 31 has grooves 311 on both sides below the movable plate 32. Multiple notches 312 arranged along the length of the grooves 311 are provided on the bottom wall of the grooves 311. Support bars 33 are hinged to both sides of the movable plate 32. The end of the support bar 33 away from the movable plate 32 has a protruding locking part 331 that can be engaged with the notch 312. By engaging the locking part 331 in different notches 312, the angle between the movable plate 32 and the base plate 31 can be adjusted, thereby raising the height of the head of the paralyzed patient in a supine position according to their needs.

[0031] Furthermore, the notch 312 can be arc-shaped, and the snap-fit ​​part 331 can be cylindrical, making the adjustment process smoother.

[0032] In this embodiment, the frame 1 can be configured to include two supports 11 and handrails 12 that are fixedly connected to the two supports 11 at both ends. The two supports 11 are fixedly connected to the bottom sides of the U-shaped plate 21, and the bottom of the supports 11 is provided with multiple casters 13 to facilitate transportation by medical staff.

[0033] Based on the above embodiments, since when transporting paralyzed patients, it is necessary to put the frame 1 on both sides of the hospital bed and lift the mattress 3 by the lifting mechanism 2, a reinforcing strip 14 connecting the two supports 11 can be provided below the armrest 12. In this way, it will not affect the placement of the frame 1 on both sides of the hospital bed, and it can also reinforce the frame 1.

[0034] Based on the above embodiments, in order to reduce the overall weight and material cost of the frame 1, the bracket 11 can be configured as a wooden frame and multiple aluminum alloy columns arranged along the length of the frame inside the frame.

[0035] In another embodiment, to address the inconvenience of the dual-axis extension motor 22 not automatically shutting off after the insertion rod 25 is inserted into or removed from the socket, limit switches 26 electrically connected to the dual-axis extension motor 22 can be provided on both sides of the adjusting rod 23 on the U-shaped plate 21. When the insertion rod 25 is inserted into the socket, the adjusting rod 23 moves to trigger the limit switch 26 closer to the transfer mattress 3; or when it is removed from the socket, the adjusting rod 23 moves to trigger the limit switch 26 farther away from the transfer mattress 3, thereby shutting off the motor. It should be noted that the limit switch 26 in this embodiment is prior art, and its working principle will not be described in detail here.

[0036] Furthermore, limiting blocks 231 can be provided on both sides of the U-shaped plate 21 on the adjusting rod 23 to restrict the left and right movement of the adjusting rod 23. The distance between the two limiting blocks 231 is slightly larger than the width of the U-shaped plate 21 to prevent the patient on the transfer mattress 3 from swaying left and right during the transfer process.

[0037] Furthermore, the frame 1 can also be equipped with a bottle holder for hanging infusion bottles, making it convenient for patients who need infusions to use during transport.

[0038] The working process and principle of this invention:

[0039] When not being transported, the patient can lie on the transfer mattress 3 as a regular mattress and wait for transport. During transport, the frame 1 is first placed on both sides of the patient's bed. Then, the frame 1 is moved back and forth so that the insertion rod 25 aligns with the vertical direction of the insertion hole. The hydraulic cylinder 24 is extended so that the insertion rod 25 aligns with the position of the insertion hole. Then, the dual-axis extension motor 22 drives the positive thread rod 221 and the negative thread rod 222 to rotate in the forward direction, which drives the two adjusting rods 23 to move towards each other along the strip opening 211, so that the insertion rod 25 is inserted into the insertion hole, thereby fixing the transfer mattress 3. Finally, the hydraulic cylinder 24 is shortened to lift the transfer mattress 3, and the frame 1 is moved for transport.

[0040] After moving to the destination, the frame 1 is first placed on both sides of the target hospital bed. Then, the hydraulic cylinder 24 is extended to make the transfer mattress 3 fall on the target hospital bed. Then, the dual-axis extension motor 22 drives the positive thread rod 221 and the negative thread rod 222 to rotate in opposite directions, driving the two adjusting rods 23 to move in opposite directions along the strip opening 211, so that the insertion rod 25 disengages from the insertion hole, thereby releasing the transfer mattress 3 and completing the transfer process.

[0041] Although the present invention has been described in detail above with general descriptions and specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A device for transferring and caring for paralyzed patients, comprising a frame (1) and a lifting mechanism (2) mounted on the frame (1), characterized in that: It also includes a transfer mattress (3) that is matched with the lifting mechanism (2). The lifting mechanism (2) includes a U-shaped plate (21) installed on the top surface of the frame (1). The U-shaped plate (21) has symmetrically opened strip-shaped openings (211) extending along the length direction of the U-shaped plate (21) on both sides of the open end. A dual-shaft extension motor (22) is installed on the closed end of the U-shaped plate (21). The two output shafts of the dual-shaft extension motor (22) are respectively connected to positive thread rods (22) through couplings. 1) and reverse threaded rod (222), both the positive threaded rod (221) and the reverse threaded rod (222) are fitted with and threaded with adjusting rods (23), the two ends of the adjusting rod (23) pass through two strip openings (211), and the two ends of the adjusting rod (23) are provided with hydraulic cylinders (24) that can extend and retract up and down to lift or lower the transfer mattress (3), the lower end of the hydraulic cylinder (24) is provided with a plug (25) extending toward the transfer mattress (3); the two sides of the transfer mattress (3) A corresponding insertion hole is provided at the position of the insertion rod (25) for insertion of the insertion rod (25). The adjusting rod (23) is provided with limiting blocks (231) on both sides of the U-shaped plate (21) to limit the left and right movement of the adjusting rod (23). When the hydraulic cylinder (24) is extended to the position of the insertion rod (25) corresponding to the insertion hole, the dual-shaft extension motor (22) drives the positive thread rod (221) and the negative thread rod (222) to rotate in the forward direction, driving the two adjusting rods (23) to move towards the slot (21) respectively. 1) The middle part moves so that the insertion rod (25) is inserted into the insertion hole, thereby fixing the transfer mattress (3), or the positive thread rod (221) and the negative thread rod (222) are driven to rotate in opposite directions, driving the two adjusting rods (23) to move towards the two ends of the strip opening (211) respectively, so that the insertion rod (25) is disengaged from the insertion hole, thereby releasing the transfer mattress (3); the U-shaped plate (21) is provided with limit switches (26) on both sides of the adjusting rod (23) that are electrically connected to the dual-axis extension motor (22).

2. The device for transferring and caring for paralyzed patients according to claim 1, characterized in that: The transfer mattress (3) includes a base plate (31) and a movable plate (32) hinged to the top side of the base plate (31). The base plate (31) has grooves (311) on both sides below the movable plate (32). The bottom wall of the groove (311) has multiple notches (312) arranged along the length of the groove (311). The movable plate (32) has support bars (33) hinged to both sides. The end of the support bar (33) away from the movable plate (32) has a protruding locking part (331) that can be engaged with the notch (312). The angle between the movable plate (32) and the base plate (31) can be adjusted by engaging the locking part (331) in different notches (312).

3. The device for transferring and caring for paralyzed patients according to claim 2, characterized in that: The notch (312) is arc-shaped, and the snap-fit ​​part (331) is cylindrical.

4. The device for transferring and caring for paralyzed patients according to claim 1, characterized in that: The frame (1) includes two supports (11) and a handrail (12) that is fixedly connected to the two supports (11) at both ends. The two supports (11) are fixedly connected to the bottom sides of the U-shaped plate (21), and the bottom of the supports (11) is provided with multiple casters (13).

5. The device for transferring and caring for paralyzed patients according to claim 4, characterized in that: The handrail (12) is provided with a reinforcing strip (14) connecting the two supports (11) below.

6. The device for transferring and caring for paralyzed patients according to claim 5, characterized in that: The support (11) includes a wooden frame and multiple aluminum alloy columns arranged along the length of the frame within the frame.

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