A folding wheelchair to assist patient transfer

Abstract

A folding wheelchair for assisting patient transfer, relating to the field of medical devices, includes a chair body, backrest, legs, a transfer board, and a rotation limiting mechanism. The chair body includes a frame and a first sliding rod, the first sliding rod extending laterally and horizontally arranged on the top surface of the frame; the backrest is rotatably mounted on the chair body and includes a second sliding rod; the legs are rotatably mounted at the other end of the chair body; the transfer board is movably mounted on the chair body or backrest and includes a plate and a sleeve, the sleeve being fitted onto the first or second sliding rod to drive the plate to move; the rotation limiting mechanism restricts the rotation of the backrest and legs. The chair body, backrest, and legs are rotatably arranged so that the wheelchair is level with the hospital bed, facilitating patient transfer. By setting the first and second sliding rods on the wheelchair, and the transfer board being movably mounted on the first or second sliding rod via the sleeve, the transfer board is pushed to complete the transfer of the patient between the wheelchair and the hospital bed, facilitating patient mobility without the need for caregivers to move the patient.

Description

Technical Field

[0001] This utility model belongs to the field of medical devices, specifically a folding wheelchair that assists in patient transfer. Background Technology

[0002] Medical transfer devices, also known as medical transfer boards or medical transfer aids, are assistive devices used in medical environments to help patients safely transfer between different bed surfaces. They mainly consist of a transfer board and a cover, achieving a smooth patient transfer through frictional sliding, and are suitable for scenarios with a bed surface difference of less than 10cm. They can reduce the risk of transport and decrease the physical burden on caregivers, and are especially suitable for patients with fractures, obesity, or those recovering from anesthesia. Often, these patients with limited mobility still require wheelchairs for mobility. Existing medical transfer devices cannot quickly transfer patients from bed to wheelchair or from wheelchair to bed, still requiring caregivers to move the patient, which is extremely physically demanding and needs improvement. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a folding wheelchair that assists in patient transfer.

[0004] The present invention adopts the following technical solution:

[0005] A folding wheelchair for assisting patient transfer includes a chair body, a backrest, legs, a transfer board, and a rotation limiting mechanism. The chair body includes a frame, a first sliding rod, and wheels. The frame supports the patient. Several first sliding rods are provided, extending laterally and horizontally arranged on the top surface of the frame. The wheels are mounted on the frame to move the chair body. The backrest is rotatable at one end of the chair body and includes two vertical rods rotatably connected to the chair body and several second sliding rods connected between the two vertical rods and parallel to the first sliding rods. The legs are rotatably mounted at the other end of the chair body. The transfer board is movably mounted on the chair body or backrest and includes a board body and sleeves. The board body is laid flat on the chair body or backrest. Several sleeves are provided, detachably mounted on the first or second sliding rods and connected to the bottom of the board body. The sleeves are fitted onto the first or second sliding rods to move the board body. The rotation limiting mechanism is provided at the connection points between the chair body and the backrest and between the chair body and the legs to restrict the rotation of the backrest and legs.

[0006] Preferably, the rotation limiting mechanism includes a first bolt and a second bolt. The first bolt is threadedly connected to the bracket and located at the connection between the chair body and the backrest. The backrest is fixed or loosened by screwing the first bolt in or out. The second bolt is threadedly connected to the bracket and located at the connection between the chair body and the backrest leg.

[0007] Preferably, the rotation limiting mechanism further includes a first limiting block and a second limiting block. The first limiting block is disposed on the bracket and extends horizontally outward from the connection between the bracket and the backrest to limit the rotation range of the backrest. The second limiting block extends horizontally outward from the bracket and is located below the bracket and the backrest leg to provide inclined support for the backrest leg.

[0008] Preferably, the sleeve is offset to one side of the plate, and the plate moves away from the sleeve to transfer the patient outward.

[0009] Preferably, it also includes a braking mechanism, including a brake handle, a brake clamp, and a brake cable. The brake handle is located at the top of the backrest; the brake clamp is located on the bracket and can clamp onto both sides of the drive wheel; the brake cable is connected between the brake handle and the brake clamp.

[0010] Preferably, the backrest further includes a handle and an armrest, with the handle located at the top of the two straight rods and the brake handle located below the handle; the armrest is rotatably mounted on the outer surface of the two straight rods.

[0011] Preferably, the leg rest includes a rotating rod, a support plate, and a support block. There are two rotating rods, located on both sides of the bracket and rotatably mounted on the bracket. The second bolt connects the rotating rod to the bracket. The support plate extends from the opposite surfaces of the two rotating rods to support the patient's legs. The support block is located at the end of the rotating rod to support the patient's feet.

[0012] Preferably, the chair body also includes casters disposed at the bottom of the bracket and located in front of the casters.

[0013] Preferably, the highest point of the moving wheel is lower than the highest point of the bracket.

[0014] Preferably, the wheels are also equipped with push rings to facilitate the patient's self-propelled wheelchair movement.

[0015] As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are: the chair body, backrest and legs can be rotated relative to each other, so that the wheelchair can be made to be flush with the hospital bed, which facilitates the transfer of patients; by setting a first sliding rod and a second sliding rod on the wheelchair, the bed board can be movably set on the first sliding rod or the second sliding rod through a sleeve, and the bed board can be pushed to complete the transfer of patients between the wheelchair and the hospital bed, which facilitates the travel of patients and eliminates the need for nursing staff to carry patients.

[0016] Adjusting the first and second bolts allows for the adjustment of the tightness of the backrest and legs, facilitating the adjustment or fixation of the backrest and chair. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0019] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is the working state of the present invention. Figure 1 ;

[0021] Figure 5 This is the working state of the present invention. Figure 2 ;

[0022] Figure 6 This is the working state of the present invention. Figure 3 ;

[0023] In the diagram: 1-Chair body; 11-Frame; 12-First sliding rod; 13-Sliding wheel; 14-Universal wheel; 15-Hand push ring; 2-Backrest; 21-Vertical rod; 22-Second sliding rod; 23-Handle; 24-Armrest; 3-Legs; 31-Rotating rod; 32-Support plate; 33-Support block; 4-Bed board; 41-Plate body; 42-Sleeve; 5-Rotation limit mechanism; 51-First bolt; 52-Second bolt; 53-First limit block; 54-Second limit block; 6-Brake mechanism; 61-Brake handle; 62-Brake clamp. Detailed Implementation

[0024] The present invention will be further described below through specific embodiments.

[0025] Reference Figures 1 to 6 As shown, a folding wheelchair for assisting patient transfer includes a chair body 1, a backrest 2, leg rests 3, a transfer board 4, a rotation limit mechanism 5, and a braking mechanism 6.

[0026] The chair body 1 includes a support frame 11, a first sliding rod 12, casters 13, and swivel casters 14. The support frame 11 supports the patient. Three first sliding rods 12 are provided, extending laterally and arranged horizontally, evenly distributed along the top surface of the support frame 11. The casters 13 are mounted on the support frame 11 to move the chair body 1. Each caster 13 also has a push ring 15 to facilitate the patient's self-propelled wheelchair movement. The swivel casters 14 are located at the bottom of the support frame 11 and in front of the casters 13. Specifically, the highest point of the casters 13 is lower than the highest point of the support frame 11 to avoid hindering the patient's outward movement on the support frame 11.

[0027] The backrest 2 is rotatable at one end of the chair body 1, including two vertical rods 21 rotatably connected to the chair body 1 and three second sliding rods 22 connected between the two vertical rods 21 and parallel to the first sliding rod 12. It also includes a handle 23 and an armrest 24. The handle 23 is located at the top of the two vertical rods 21, and the brake handle 61 is located below the handle 23. The armrest 24 is rotatably located on the outer surface of the two vertical rods 21 and can be rotated to a position flush with the backrest 2 to facilitate patient transfer when the backrest 2 is laid flat.

[0028] The leg rest 3 is rotatably mounted at the other end of the chair body 1, and includes a rotating rod 31, a support plate 32, and a support block 33. There are two rotating rods 31, which are located on both sides of the bracket 11 and are rotatably mounted on the bracket 11. A second bolt 52 is connected between the rotating rod 31 and the bracket 11. The support plate 32 extends from the opposite surfaces of the two rotating rods 31 to support the patient's legs. The support block 33 is located at the end of the rotating rod 31 to support the patient's feet.

[0029] The overboard 4 is movably mounted on the chair body 1 or backrest 2, and includes a board body 41 and sleeves 42. The board body 41 is laid flat on the chair body 1 or backrest 2. Several sleeves 42 are provided, which are opposite to the first sliding rod 12 or the second sliding rod 22 and connected to the bottom of the board body 41. The sleeves 42 are fitted onto the first sliding rod 12 or the second sliding rod 22 to drive the board body 41 to move. Specifically, the sleeves 42 are offset to one side of the board body 41, and the board body 41 moves away from the sleeves 42 to transfer the patient outward. Furthermore, the board 41 has an inner polypropylene board structure with an ultra-slip nylon outer cover. The sleeve 42 is a strip of nylon fabric, with one end spliced ​​with fabric to the nylon outer cover of the board 41. The sleeve 42 has a hook and loop fastener surface and a hook and loop fastener surface formed on its front and back sides, respectively. During installation, it wraps around the first sliding rod 12 or the second sliding rod 22 and the hook and loop fastener surfaces are glued together to fit the sleeve on the outside. It is detachable for easy cleaning and replacement of the bed board 4. The hook and loop fastener structure is prior art and is not the focus of this application. Those skilled in the art can directly and clearly understand it, and its structure and selection will not be further described here.

[0030] The rotation limiting mechanism 5 is located at the connection points between the chair body 1 and the backrest 2, and between the chair body 1 and the legs 3, to restrict the rotation of the backrest 2 and the legs 3. The rotation limiting mechanism 5 includes a first bolt 51, a second bolt 52, a first limiting block 53, and a second limiting block 54. The first bolt 51 is threadedly connected to the bracket 11 and is located at the connection point between the chair body 1 and the backrest 2. The backrest 2 is fixed or loosened by screwing the first bolt 51 in or out. The second bolt 52 is threadedly connected to the bracket 11 and is located at the connection point between the chair body 1 and the legs 3. The first limiting block 53 is set on the bracket 11 and extends horizontally outward from the connection point between the bracket 11 and the backrest 2 to limit the rotation range of the backrest 2. The second limiting block 54 extends horizontally outward from the bracket 11 and is located below the bracket 11 and the legs 3 to provide inclined support for the legs 3.

[0031] The braking mechanism 6 includes a brake handle 61, a brake clamp 62, and a brake cable. The brake handle 61 is located at the top of the backrest 2; the brake clamp 62 is mounted on the bracket 11 and can clamp onto both sides of the driving wheel 13; the brake cable is built into the vertical rod 21 and connects the brake handle 61 and the brake clamp 62. The braking mechanism 6 is a common braking system in bicycles and wheelchairs, and is prior art that can be directly obtained by those skilled in the art. It is not the focus of this application, and its structure and selection will not be further described here.

[0032] When transferring a patient from bed to a wheelchair, first push the wheelchair to the side of the bed and align its side with the side of the bed (at this time, the direction of movement of the transfer board 4 should be towards the bed). Next, loosen the first bolt 51 and the second bolt 52, rotate the backrest 2 and the legs 3 to a horizontal position, and then re-tighten the first bolt 51 and the second bolt 52. Then move the transfer board 4 onto the bed, and after the patient lies on the bed, push the transfer board 4 back to its original position and move the patient to the wheelchair. Finally, loosen the first bolt 51 and the second bolt 52 to reset the backrest 2 and the legs 3, adjust the patient to a sitting position, and then re-tighten the first bolt 51 and the second bolt 52 to complete the transfer.

[0033] When transferring a patient from a wheelchair to a hospital bed, first push the wheelchair to the side of the bed and align its side with the side of the bed (at this time, the direction of movement of the transfer board 4 should be towards the bed). Next, loosen the first bolt 51 and the second bolt 52, and rotate the backrest 2 and the legs 3 to a horizontal position so that the patient is lying flat, then tighten the first bolt 51 and the second bolt 52 again. Then move the transfer board 4 along with the patient onto the hospital bed, and then remove the lower transfer board 4 to complete the patient transfer. Finally, return the wheelchair to its original position and store it away.

[0034] The chair body 1, backrest 2, and legs 3 of this application can be rotated relative to each other, allowing the wheelchair to reach a level position with the hospital bed, facilitating patient transfer. By setting a first sliding rod 12 and a second sliding rod 22 on the wheelchair, the transfer board 4 can be movably set on the first sliding rod 12 or the second sliding rod 22 through a sleeve 42. Pushing the transfer board 4 completes the transfer of the patient between the wheelchair and the hospital bed. The combination of the wheelchair and the transfer board 4 solves the pain point of patients needing wheelchairs for travel, and the transfer is easy and simple, without the need for nursing staff to carry the patient, making it highly practical.

[0035] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be construed as limiting the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present utility model shall still fall within the scope of the patent of the present utility model.

Claims

1. A foldable wheelchair to assist patient transfer, characterized by: The device includes a chair body, backrest, legs, a bed board, and a rotation limiting mechanism. The chair body includes a support frame, a first sliding rod, and casters. The support frame supports the patient. Several first sliding rods are provided, extending laterally and arranged horizontally on the top surface of the support frame. The casters are mounted on the support frame to move the chair body. The backrest is rotatably connected to one end of the chair body and includes two vertical rods rotatably connected to the chair body and several second sliding rods connected between the two vertical rods and parallel to the first sliding rods. The legs are rotatably located at the other end of the chair body. The bed board is movably mounted on the chair body or backrest and includes a board body and sleeves. The board body is laid flat on the chair body or backrest. Several sleeves are provided, detachably mounted on the first or second sliding rods and connected to the bottom of the board body. The sleeves are fitted onto the first or second sliding rods to move the board body. The rotation limiting mechanism is located at the connection points between the chair body and the backrest and between the chair body and the legs to restrict the rotation of the backrest and legs.

2. The foldable wheelchair of claim 1, wherein: The rotation limiting mechanism includes a first bolt and a second bolt. The first bolt is threadedly connected to the bracket and is located at the connection between the chair body and the backrest. The backrest is fixed or loosened by screwing the first bolt in or out. The second bolt is threadedly connected to the bracket and is located at the connection between the chair body and the backrest leg.

3. The foldable wheelchair of claim 2, wherein: The rotation limiting mechanism further includes a first limiting block and a second limiting block. The first limiting block is disposed on the bracket and extends horizontally outward from the connection between the bracket and the backrest to limit the rotation range of the backrest. The second limiting block extends horizontally outward from the bracket and is located below the bracket and the backrest leg to support the backrest leg at an angle.

4. The foldable wheelchair of claim 1, wherein: The sleeve is offset to one side of the plate, and the plate moves away from the sleeve to transfer the patient outward.

5. The foldable wheelchair of claim 1, wherein: It also includes a braking mechanism, including a brake handle, a brake clamp, and a brake cable. The brake handle is located at the top of the backrest; the brake clamp is located on the bracket and can be clamped on both sides of the moving wheel; the brake cable is connected between the brake handle and the brake clamp.

6. A folding wheelchair for assisting patient transfer according to claim 5, characterized in that: The backrest also includes a handle and an armrest. The handle is located at the top of the two straight rods, and the brake handle is located below the handle. The armrest is rotatably mounted on the outer surface of the two straight rods.

7. The foldable wheelchair of claim 2, wherein: The leg rest includes a rotating rod, a support plate, and a support block. There are two rotating rods, located on both sides of the bracket and rotatably mounted on the bracket. The second bolt connects the rotating rod to the bracket. The support plate extends from the opposite surfaces of the two rotating rods to support the patient's legs. The support block is located at the end of the rotating rod to support the patient's feet.

8. A folding wheelchair for assisting patient transfer according to claim 1, characterized in that: The chair body also includes casters located at the bottom of the support frame and in front of the casters.

9. A folding wheelchair for assisting patient transfer according to claim 1, characterized in that: The highest point of the moving wheel is lower than the highest point of the bracket.

10. A folding wheelchair for assisting patient transfer according to claim 1, characterized in that: The wheels are also equipped with push rings to help patients push the wheelchair forward themselves.

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