Medical transfer bed

The bed structure, with its adjustable base and ball screw drive, solves the problem of existing medical transport beds requiring manual lifting of patients, enabling comfortable transfers without the need for patient intervention, and improving the convenience and comfort of the transfer process.

CN224070701UActive Publication Date: 2026-04-03THE FIRST PEOPLES HOSPITAL OF JIASHAN COUNTY ZHEJIANG PROVINCE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing medical transport beds require manual lifting when transferring patients with limited mobility, which reduces patient comfort.

Method used

The bed structure adopts a height-adjustable base and ball screw drive. The ball screw and slider are connected by a motor to realize the lifting and moving of the bed. With the design of movable handrails and inserts, the body movements of patients are reduced during the transfer process.

Benefits of technology

This allows patients to move without voluntary action during the transfer process, reducing pain and improving the comfort and convenience of the transfer.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224070701U_ABST
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Abstract

The utility model provides a medical transfer bed, which relates to the technical field of medical instruments and comprises a liftable base, a bed body, a fixed table, a transverse plate, a fixed guardrail, a main plate, an auxiliary plate, a groove, a ball screw, a first motor, a sliding block, an insertion plate, a clamping groove, a cavity, a first elastic part, a mounting frame, a movable handrail, a guide plate, a groove and a guide rod, the auxiliary plate and the main plate are provided with positioning holes used for containing the guide rods, one end of the second elastic piece is fixedly connected with the guide plate, and the other end of the second elastic piece is fixedly connected with the mounting frame. After the main plate and the auxiliary plate located below the patient are drawn away, the inserting plates below the patient are sequentially drawn away, in the whole transferring process, the patient does not need to do actions, and therefore the influence on the patient during transferring can be reduced, and the comfort of the patient during transferring is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a medical transport bed. Background Technology

[0002] A medical transport bed is a specialized medical bed used for transferring patients between beds, from the operating table to the ward, and from an ambulance. The use of transport beds solves the difficulties of moving patients from the operating table to the ward after surgery, and reduces the pain and hardship caused by traditional manual patient transfers. It is an essential piece of medical equipment for hospitals.

[0003] When transferring patients from the existing transport bed to a bed in the ward, if the patient has difficulty moving or is even unable to move, the patient needs to be manually lifted from the transport bed to the bed, which reduces the patient's comfort when changing beds and is not convenient to use. Utility Model Content

[0004] The purpose of this invention is to provide a medical transport bed that addresses the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The medical transport bed includes a height-adjustable base, a bed body mounted on the base, a fixed platform, a horizontal plate mounted on the fixed platform, a fixed guardrail mounted on the horizontal plate, a main plate mounted on one side of the horizontal plate, and secondary plates mounted on the horizontal plate on both sides of the main plate. A groove is formed on the fixed platform, and a ball screw is installed inside the groove. A first motor for driving the ball screw to rotate is mounted on the fixed platform. A slider is mounted on the lower surface of the main plate, and the slider is threadedly connected to the ball screw. The secondary plates are slidably connected to the fixed platform. The invention also includes several insert plates mounted on the fixed platform and slidably connected to the fixed platform. A slot is provided at one end of the horizontal plate, and a cavity is provided inside the horizontal plate. A first elastic member is also included, with one end fixedly connected to an insert plate and the other end located inside the cavity and fixedly connected to the horizontal plate. A mounting bracket is rotatably connected to a fixed platform. A movable handrail is slidably connected to the mounting bracket, and a guide plate is provided on the lower end face of the movable handrail. A groove for accommodating the guide plate is provided on the mounting bracket, and a guide rod is provided at the lower end of the guide plate, penetrating the mounting bracket. Positioning holes for accommodating the guide rod are provided on the sub-plate and the main plate. A second elastic member is also included, with one end fixedly connected to the guide plate and the other end fixedly connected to the mounting bracket.

[0006] Preferably, the base includes a base platform with rollers at its bottom. Two double-threaded screws with two external threads are mounted on the base platform. Two sets of connecting units are mounted on the same double-threaded screw. Each connecting unit includes a connecting rod. One end of the connecting rod is rotatably connected to a fixed seat, which is fixedly connected to the base platform. The other end of the connecting rod is provided with a movable seat, which is threadedly connected to the double-threaded screw. The two movable seats on the same double-threaded screw move in opposite directions. A main shaft is mounted on the base platform, and a second motor is also included. The second motor and the main shaft, as well as the main shaft and the double-threaded screw, are driven by a bevel gear set.

[0007] Preferably, it also includes a retractable protective cylinder mounted on the base platform, wherein the double-threaded screw and the connecting unit are both located inside the protective cylinder.

[0008] Preferably, handles are provided at both ends of the fixed platform.

[0009] Preferably, the end of the insert board, main board, and sub-board that is away from the horizontal plate has a rounded corner.

[0010] The beneficial effects of this utility model are:

[0011] When in use, the device can directly transfer the patient to the hospital bed. Then, the main board and sub-board located under the patient are removed, followed by the insertion board under the patient. The patient does not need to make any movements during the entire transfer process, which can reduce the impact on the patient during the transfer and ensure the patient's comfort. Attached Figure Description

[0012] Figure 1 This is a structural schematic diagram of a specific embodiment of the present invention.

[0013] Figure 2 This is a schematic diagram of the structure after the insert plate extends.

[0014] Figure 3 This is a schematic diagram of the structure after the horizontal plate has been reset.

[0015] Figure 4 yes Figure 3 Side view in the current state.

[0016] Figure 5 This is a top view of the ball screw and slider.

[0017] Figure 6 This is a schematic diagram showing the connection between the insert plate and the horizontal plate.

[0018] Figure 7 This is a schematic diagram of the insert plate.

[0019] Figure 8 This is a structural diagram of the base.

[0020] In the diagram: 1. Fixed platform; 2. Horizontal plate; 3. Fixed guardrail; 4. Main board; 5. Sub-board; 6. Ball screw; 7. First motor; 8. Slider; 9. Insert plate; 10. Slot; 11. First elastic component; 12. Mounting bracket; 13. Movable handrail; 14. Guide plate; 15. Guide rod; 16. Positioning hole; 17. Second elastic component; 18. Base; 19. Roller; 20. Double threaded screw; 21. Connecting rod; 22. Fixed seat; 23. Movable seat; 24. Main shaft; 25. Second motor; 26. Protective cylinder; 27. Handle. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0022] like Figure 1-8 As shown, a medical transport bed includes a height-adjustable base, a bed frame mounted on the base, and a fixed platform 1. A horizontal plate 2 is mounted on the fixed platform 1, and a fixed guardrail 3 is mounted on the horizontal plate 2. A main plate 4 is located in the middle of one side of the horizontal plate 2, and secondary plates 5 are respectively mounted on the horizontal plate 2 and located on both sides of the main plate 4. A groove is formed in the fixed platform 1, and a ball screw 6 is installed inside the groove. A first motor 7 for driving the ball screw 6 is mounted on the fixed platform 1. A slider 8 is provided on the lower surface of the main plate 4, and the slider 8 is threadedly connected to the ball screw 6. The secondary plates 5 are slidably connected to the fixed platform 1. The bed also includes several insert plates 9 mounted on the fixed platform 1 and slidably connected to the fixed platform 1. A slot 10 is formed at one end of the insert plate 9 near the horizontal plate 2. The horizontal plate 2 has a... The cavity also includes a first elastic member 11, one end of which is fixedly connected to the insert plate 9, and the other end of which is located inside the cavity and fixedly connected to the horizontal plate 2. It also includes a mounting bracket 12 rotatably connected to the fixed platform 1. A movable handrail 13 is slidably connected to the mounting bracket 12. A guide plate 14 is provided on the lower end face of the movable handrail 13. A groove for accommodating the guide plate 14 is provided on the mounting bracket 12. A guide rod 15 is provided at the lower end of the guide plate 14. The guide rod 15 passes through the mounting bracket 12. Positioning holes 16 for accommodating the guide rod 15 are provided on the sub-plate 5 and the main plate 4. It also includes a second elastic member 17, one end of which is fixedly connected to the guide plate 14, and the other end of which is fixedly connected to the mounting bracket 12.

[0023] When transferring a patient from the transport bed to the bed in the ward, firstly, the movable armrest 13 is lifted upwards, causing the lower end of the guide rod 15 to move out of the positioning hole 16. Then, the movable armrest 13 itself and the mounting frame 12 are rotated by controlling the movable armrest 13, causing the movable armrest 13 to flip under the fixed platform 1. Next, the transport bed is moved to one side of the bed, aligning the transport bed with the bed. Then, the fixed platform 1 is raised and lowered by controlling the height of the adjustable base, so that the insert plate 9, main plate 4, and cross plate 2 are positioned above the bed. Next, the first motor 7 is started, driving the ball screw 6 to rotate. Through the threaded connection between the ball screw 6 and the slider 8, and the sliding connection between the insert plate 9 and the fixed platform 1, the cross plate 2 can be moved. During the movement of the cross plate 2, the main plate 4, secondary plate 5, and all the insert plates 9 can be moved, so that the main plate 4, secondary plate 5, insert plates 9, and the patient located on the main plate 4, secondary plate 5, and insert plates 9 are moved above the bed. Next, the adjustable base moves the main board 4, secondary board 5, insert plate 9, and the patient downwards, allowing them to rest on the bedding on the hospital bed. Then, the first motor 7 is activated, moving the horizontal board 2, main board 4, and secondary board 5 towards the fixed guardrail 3. Since the patient is not lying directly on the horizontal board 2 on the transfer bed, the friction between the patient and the insert plate 9 is greater than the friction between the patient and the main board 4 and secondary board 5. Therefore, while the horizontal board 2, main board 4, and secondary board 5 move towards the fixed guardrail 3, the patient remains on the insert plate 9. After the horizontal board 2 returns to its original position, the staff uses the slots 10 on the insert plate 9 to sequentially pull the insert plates 9 out from under the patient's body. When all the insert plates 9 are pulled out from under the patient, the transfer from the transfer bed to the hospital bed is complete. During this process, the patient does not need to move, thus avoiding pain and improving the comfort of the transfer.

[0024] The insert plate 9, main board 4, and transverse plate 2 can be made of plastic with a smooth surface to reduce friction with the patient. In addition, a medical mattress can be placed on the insert plate 9, main board 4, and transverse plate 5 before the patient lies on the transport bed to avoid direct contact between the patient and the transverse plate 2, main board 4, and transverse plate 5.

[0025] The first elastic element 11 is always in a stretched state, which can constrain the insert plate 9 to one side of the horizontal plate 2 and prevent the insert plate 9 from moving at will.

[0026] The second elastic element 17 is always in a stretched state. After the horizontal plate 2, main plate 4, secondary plate 5 and insert plate 9 have completed their reset, the movable handrail 13 is rotated, and under the action of the second elastic element 17, the guide rod 15 is re-inserted into the positioning hole 16. When the patient on the transfer bed laterally squeezes the mounting frame 12 and the movable handrail 13, the movable handrail 13 will not flip over. Moreover, the movable handrail 13 can cooperate with the fixed guardrail 3 to protect the patient and prevent the patient from falling off the transfer bed.

[0027] Furthermore, the base includes a base platform 18, with rollers 19 at the bottom of the base platform 18. The base platform 18 is equipped with two double-threaded screws 20 with two external threads. Two sets of connecting units are provided on the same double-threaded screw 20. The connecting unit includes a connecting rod 21. One end of the connecting rod 21 is rotatably connected to a fixed seat 22, which is fixedly connected to the fixed platform 1. The other end of the connecting rod 21 is equipped with a movable seat 23, which is threadedly connected to the double-threaded screw 20. The two movable seats 23 on the same double-threaded screw 20 move in opposite directions. The base platform 18 is equipped with a main shaft 24 and also includes a second motor 25. The second motor 25 and the main shaft 24, as well as the main shaft 24 and the double-threaded screw 20, are driven by a bevel gear set.

[0028] When adjusting the height of the bed, the second motor 25 is started. The second motor 25 drives the main shaft 24 to rotate through the bevel gear set. The main shaft 24 drives the two double-threaded screws 20 to rotate through the bevel gear sets at both ends. When the two double-threaded screws 20 rotate, they can drive the two movable seats 23 located on the same double-threaded screw 20 to move. By controlling the direction of the external threads on the two double-threaded screws 20, the four fixed seats 22 can rise or fall simultaneously, thereby controlling the height of the bed.

[0029] Furthermore, it also includes a retractable protective cylinder 26 set on the base platform 18. The double-threaded screw 20 and the connecting unit are both located inside the protective cylinder 26 to prevent foreign objects from jamming the connecting rod 21 and affecting the normal lifting and lowering of the bed.

[0030] Furthermore, handles 27 are provided at both ends of the fixed platform 1, which can not only protect the patient on the transfer bed, but also facilitate lifting the transfer bed through the handles 27 for use in emergency obstacle avoidance situations.

[0031] Furthermore, the end of the insert board 9, the main board 4, and the sub-board 5 that is furthest from the horizontal board 2 is provided with rounded corners.

[0032] In the description of this utility model, 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.

Claims

1. A medical transfer stretcher, characterized by, The utility model provides a bed, including the bottom base that can lift, be provided with the bed body on the bottom base, the bed body includes the fixed platform, be provided with the cross board on the fixed platform, be provided with the fixed guardrail on the cross board, the one side middle part of cross board is provided with the mainboard, the cross board is provided with vice board respectively on both sides of mainboard, the recess is seted up on the fixed platform, the inside of recess is provided with the ball screw, be provided with the first motor of driving ball screw rotation on the fixed platform, the lower surface of mainboard is provided with the sliding block, the sliding block is with ball screw screw connection, vice board and fixed platform slidingly connected, still include a plurality of setting on the fixed platform and with fixed platform slidingly connected's plug -in board, the one end of plug -in board is close to the cross board and is seted up the clamping groove, the inside of cross board is seted up the cavity, still include first elastic piece, one end of first elastic piece and plug -in board fixed connection, the other end of first elastic piece is located in the inside of cavity and with cross board fixed connection, still include with fixed platform rotatably connected's mounting bracket, the movable handrail is slidably connected on the mounting bracket, the lower end surface of movable handrail is provided with the guide plate, be provided with the recess for containing guide plate on the mounting bracket, the lower end of guide plate is provided with the guide rod, the guide rod penetrates the mounting bracket, the vice board and mainboard are seted up the positioning hole for containing the guide rod, still include second elastic piece, one end of second elastic piece and guide plate fixed connection, the other end of second elastic piece and mounting bracket fixed connection.

2. The medical stretcher of claim 1, wherein, The bottom base includes a base table, the bottom of the base table is provided with a rolling wheel, the base table is provided with two double-threaded screws with two sections of external threads, each double-threaded screw is provided with two connecting units, the connecting unit includes a connecting rod, one end of the connecting rod is rotatably connected with a fixed seat, the fixed seat is fixedly connected with the fixed table, the other end of the connecting rod is provided with a movable seat, the movable seat is threadedly connected with the double-threaded screw, the directions of the two movable seats on the same double-threaded screw are opposite when moving, the base table is provided with a main shaft, and a second motor is further arranged, the second motor and the main shaft are connected through a bevel gear set.

3. The medical stretcher of claim 2, wherein, The double-threaded screws and the connecting units are arranged in the protection cylinder.

4. The medical transportable bed according to claim 1, wherein The fixed table is provided with a handle at each end.

5. The medical stretcher according to any one of claims 1-4, characterized in that, The end of the plug-in board, the main board and the vice board away from the cross board is provided with a rounded corner. The end of the plug-in board, the main board and the vice board away from the cross board is provided with a rounded corner.