Displacement mechanism for patient bed conversion

Abstract

The utility model relates to the technical field of medical instruments, in particular to a shifting mechanism for patient bed conversion, which comprises a bearing component, a vertical support part, a rotating component, a hand pump hydraulic component and a base with a moving function, and the rotating component is a ball turntable; a balancing weight is arranged at the end, opposite to the vertical supporting piece, of the base. The hand pump hydraulic assembly drives the supporting arm cross beam to slide up and down in the height direction of the vertical supporting piece. The vertical supporting piece is installed on the base through a ball rotating disc, and the vertical supporting piece can rotate by 360 degrees in the horizontal direction by manually acting on the operation part. All the functional components are designed in a humanized mode, the safety and comfort of a patient during displacement are remarkably improved under the synergistic effect, and the multifunctional moving bed is compact in overall structure, scientific in design, convenient to use, wide in application range and good in practicability.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a transfer mechanism for changing patient beds. Background Technology

[0002] Patients frequently need to be transferred between beds during admission and discharge. In most hospitals, whether transferring patients from transport vehicles or gurneys to beds, or from beds to workbenches or transport vehicles for various diagnostic equipment, this is often done manually by multiple people lifting or carrying them. This method is not only labor-intensive and increases the burden on medical staff and patients' families, but it can also cause discomfort and pain to patients, and even secondary injuries. Therefore, current technology attempts to use specialized tools to mechanically transfer patients between beds. However, while existing transfer mechanisms can achieve more effortless mechanical transfers, their structures are not scientifically sound, especially the support components used to fix and support the patient. These components are fixed in structure and cannot be adjusted to fit the patient's actual size, resulting in poor performance, limited applicability, and poor practicality.

[0003] Therefore, this utility model is proposed. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the prior art, the present invention provides a transfer mechanism for changing the bed position of a patient.

[0005] This utility model is implemented as follows:

[0006] A patient bed transfer mechanism includes: a load-bearing component, a vertical support, a rotating component, a hand-operated hydraulic pump component, and a base with a movable function;

[0007] The load-bearing component includes: a support arm beam, a support arm, and a detachable sling attached to the support arm. One end of each of the support arms is rotatably connected to a connector. The connector is slidably connected to the support arm beam along the length of the support arm beam. An operating part is also provided on the side of the support arm beam opposite to the support arm. The opening angle of the support arm and the distance between two adjacent support arms can be adjusted by the connector.

[0008] The rotating component is a ball bearing turntable;

[0009] The hand pump hydraulic assembly includes: a hydraulic cylinder, a hand pump, a linear guide rail, a slider bracket, a slider, and a hydraulic oil tank. The hydraulic oil tank and the hydraulic cylinder are connected via the hand pump. An adjustable flow valve, an overflow valve, and a pressure gauge are also installed on the oil pipe between the hydraulic oil tank and the hydraulic cylinder. A piston rod is installed inside the hydraulic cylinder. A hand pump operating lever is installed on the hand pump. The slider can rise and fall along the height direction of the linear guide rail under the action of the piston rod. The slider is fixedly connected to the support arm beam via the slider bracket.

[0010] A counterweight is provided at one end of the base opposite to the vertical support;

[0011] The hand pump hydraulic assembly drives the support arm beam to slide up and down along the height direction of the vertical support member; the vertical support member is mounted on the base via a ball bearing turntable, and the manual operation of the operating part can realize the vertical support member rotating 360° in the horizontal direction.

[0012] Preferably, the connector includes: a support arm slide, a support arm joint, a connecting shaft, and a set screw. The support arm is rotatably connected to the support arm joint via the connecting shaft. An arc-shaped through hole is provided on the support arm joint, and the set screw is located in the arc-shaped through hole. The support arm slide is fixedly connected to the support arm joint. A sliding groove is provided on the support arm crossbeam along its length, and the support arm slide is slidably connected to the sliding groove.

[0013] Preferably, there are three support arms, which are arranged parallel to each other and at the same height on the support arm crossbeam. The middle support arm is a straight structure, and the two side support arms are broken line structures. Limiting structures are provided at both ends of the slide.

[0014] Preferably, the support arm is provided with a limiting structure for restricting the movement of the sling.

[0015] Preferably, the ball bearing turntable includes an inner ring and an outer ring, the inner ring rotating relative to the outer ring, the outer ring being fixed to the base, and a vertical support member being fixedly connected to the inner ring.

[0016] Preferably, the bottom of the vertical support member is provided with a vertical support member base plate, the vertical support member is fixedly connected to the inner ring through the vertical support member base plate, the vertical support member base plate is provided with at least one pin, the outer circumference of the outer ring is fixed with a rotary support base plate, and the rotary support base plate is provided with a plurality of insertion holes corresponding to the pin structure.

[0017] Preferably, the linear guide is mounted on the vertical support, and the hydraulic cylinder is mounted inside the vertical support.

[0018] Preferably, the operating part is a handrail.

[0019] Preferably, the handrail is a U-shaped handrail, which is vertically arranged and its two free ends are respectively perpendicular to and fixedly connected to the support arm beam.

[0020] Preferably, the base is equipped with casters at the bottom, and the casters are heavy-duty casters.

[0021] Compared with the prior art, each functional component of this utility model adopts a humanized design, and the synergistic effect significantly improves the safety and comfort of patient transfer. The overall structure is compact, scientifically designed, easy to use, widely applicable, and highly practical. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is one embodiment of the present invention;

[0024] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0025] Figure 3 for Figure 1 Schematic diagram of local structure Figure 1 ;

[0026] Figure 4 for Figure 1 Schematic diagram of local structure Figure 2 ;

[0027] Figure 5 for Figure 4 Enlarged structural diagram at point B;

[0028] Figure 6 To adopt Figure 1 The diagram shows the operation of the transfer mechanism that moves the patient from the bed to the workbench of the testing equipment. Figure 1 ;

[0029] Figure 7 To adopt Figure 1 The diagram shows the operation of the transfer mechanism that moves the patient from the bed to the workbench of the testing equipment. Figure 2 ;

[0030] Figure 8 To adopt Figure 1 The diagram shows the operation of the transfer mechanism that moves the patient from the bed to the workbench of the testing equipment. Figure 3 ;

[0031] Figure 9 use Figure 1 The diagram shows the operation of the transfer mechanism that moves the patient from the bed to the workbench of the testing equipment. Figure 4 ;

[0032] Figure 10 for Figure 1 A schematic diagram of the hydraulic components of a hand pump.

[0033] The components include: 1. Casters; 2. Base; 3. Ball bearing turntable; 4. Pin; 5. Lower ear ring seat plate; 6. Vertical support component; 7. Hydraulic cylinder; 8. Hand pump; 9. Adjustable flow valve; 10. Handrail; 11. Linear guide rail; 12. Hand pump operating lever; 13. Slider bracket; 14. Slider; 15. Support arm crossbeam; 16. Support arm; 17. Sling; 18. Patient; 19. Hospital bed; 20. Workbench; 21. Set screw; 22. Connecting shaft; 23. Support arm joint frame; 24. Support arm slide; 25. Hydraulic oil tank; 26. Piston rod; 27. Vertical support component base plate; 28. Pressure gauge; 29. ​​Relief valve. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. The following embodiments and operations not described in detail in the comparative examples are all conventional technical means in the art.

[0035] like Figures 1-10 As shown in the figure: a transfer mechanism for changing patient beds, comprising: a load-bearing component, a vertical support 6, a rotating component, a hand pump hydraulic component, and a base 2 with a movable function;

[0036] The load-bearing assembly includes: a support arm beam 15, a support arm 16, and a detachable sling 17 that is hung on the support arm 16. One end of each of the support arms 16 is rotatably connected to a connector. The connector is slidably connected to the support arm beam 15 along the length of the support arm beam 15. An operating part is also provided on the side of the support arm beam 15 opposite to the support arm 16. The opening angle of the support arm 16 and the distance between two adjacent support arms 16 can be adjusted by the connector.

[0037] The rotating component is a ball bearing turntable 3;

[0038] The hand pump hydraulic assembly includes: a hydraulic cylinder 7, a hand pump 8, a linear guide rail 11, a slider bracket 13, a slider 14, and a hydraulic oil tank 25. The hydraulic oil tank 25 is connected to the hydraulic cylinder 7 via the hand pump 8. An adjustable flow valve 9, an overflow valve 29, and a pressure gauge 28 are also provided on the oil pipe between the hydraulic oil tank 25 and the hydraulic cylinder 7. A piston rod 26 is provided inside the hydraulic cylinder 7. A hand pump operating lever 12 is provided on the hand pump 8. The slider 14 can be raised and lowered along the height direction of the linear guide rail 11 under the action of the piston rod 26. The slider 14 is fixedly connected to the support arm beam 15 via the slider bracket 13.

[0039] A counterweight is provided on one end of the base 2 opposite to the vertical support 6;

[0040] The hand pump hydraulic assembly drives the support arm beam 15 to slide up and down along the height of the vertical support member 6, thereby lifting and lowering the patient; the vertical support member 6 is mounted on the base 2 via a ball bearing turntable 3, and the manual operation of the operating part can realize the vertical support member 6 rotating 360° in the horizontal direction, thereby realizing the change of direction during the displacement operation.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] (1) Several support arms 16 are rotatably connected to the connector, so that the opening angle of each support arm 16 can be adjusted; the connector slides along the length direction of the support arm beam 15, so that the distance between each support arm 16 can be adjusted. The above-mentioned adjustment function of the support arm 16 enables the present invention to be adjusted according to the specific body shape of the patient to be moved in order to obtain a better use effect.

[0043] (2) The ball bearing turntable 3 has a simple structure, is easy to install and has low cost. Under its action, the vertical support 6 has a 360° infinite rotation function in the horizontal direction. When this utility model is used in special scenarios, such as when the bottom of the patient's bed or workbench is not empty, or when the space is narrow and the base 2 cannot be moved flexibly, and the operation that can only be completed by moving the base 2 can be achieved by the 360° rotation function of the vertical support 6. Therefore, it has a wide range of applications, is easy to operate and has low requirements for the size of the space.

[0044] (3) Specifically, the upper earring of the piston rod 26 is connected to the slider bracket 13 through the upper earring shaft, and the lower earring is connected to the lower earring seat plate 5 fixed on the vertical support 6 through the lower earring shaft. The hand pump 8 is operated by the hand pump operating rod 12. The hand pump 8 draws in the hydraulic oil in the hydraulic oil tank 25 and pressurizes it before delivering it to the hydraulic cylinder 7 through the oil pipe. After the hydraulic cylinder 7 receives the hydraulic oil, the piston rod 26 extends under pressure and generates thrust to make the slider 14 rise and fall. When the slider 14 rises to the highest point, the overflow valve 29 opens and the hydraulic oil returns to the hydraulic oil tank 25. The piston rod 26 drives the slider 14 to fall and retract to the lowest point under the action of gravity. During this process, the patient is slowly and steadily placed in the target position. The adjustable flow valve 9 can control the flow rate of hydraulic oil in the oil pipe. By adjusting its opening degree, the working pressure and execution speed of the hydraulic cylinder 7 can be adjusted so that the patient can be lifted slowly and smoothly. On the other hand, it can limit the flow rate of hydraulic oil to prevent the hydraulic system from being overloaded or damaged.

[0045] (4) The specific weight of the counterweight is determined according to the rated load borne by this utility model. Its setting can change the center of gravity position of this utility model after bearing the load, improve the balance of this utility model, and ensure that the support arm 16 will not tip over when bearing the rated load and making a 360° rotation.

[0046] In summary, this utility model relates to a system where the lifting, lowering, and repositioning of patients are all performed manually. This manual operation allows operators to maintain more direct awareness, providing safer and more comfortable repositioning services and enhancing the patient's experience. Each functional component in this utility model adopts a user-friendly design, and their synergistic effect significantly improves the safety and comfort of patient repositioning. The overall structure is compact, scientifically designed, easy to use, widely applicable, and highly practical.

[0047] It is important to note that:

[0048] (1) The sling 17 is preferably a strip structure with a certain degree of flexibility. Each end of the strip structure has a through hole. The sling 17 is hung on the support arm 16 through the through hole and can be installed or removed at any time.

[0049] (2) The number of slings 17 is preferably matched with the number of support arms 16, with one sling 17 installed on each support arm 16. For example... Figures 6-9As shown: Patient 18 is lying on bed 19 and needs to be transferred to the workbench 20 of a certain testing equipment. In the specific operation, the sling 17 is first placed under the patient 18 at several points, with the perforations at both ends of the sling 17 exposed. Then, the transfer mechanism is moved closer to the patient 18, and the support arm 16 is adjusted to be at the same height as the perforations. Next, the transfer mechanism is moved so that the support arm 16 passes through the perforations, and the sling 17 is then connected to the support arm 16. During the insertion process, the opening angle of each support arm 16 and the spacing between them are adjusted according to the patient 18's body size to ensure that the patient 18 is safely, stably, and comfortably connected to the support component. Then the support arm... The beam 15 rises, and after the patient 18 leaves the bed 19, the transfer mechanism is moved to the workbench 20. Upon reaching the workbench 20, the operator rotates the vertical support 6 through the operating unit under the action of the rotating component, so that the patient 18 is exactly above the workbench 20. Then, the support arm beam 15 descends until the patient 18 lies exactly on the table surface of the workbench 20. After that, the mechanism is moved so that the support arm 16 disengages from the perforation, and the sling 17 disengages from the support arm 16. The sling 17 is slowly pulled out, and the operation of changing the patient 18's bed position is completed.

[0050] (3) The linear guide 11 is a precision linear guide. The precision linear guide has high precision and high rigidity, which can stably support and guide the slider 14, ensuring that the slider 14 achieves high-precision linear movement in its height direction, thereby ensuring the stability and reliability of the lifting of the support arm beam 15.

[0051] As a preferred technical solution, in another embodiment of this utility model, the connecting component includes: a support arm slide 24, a support arm joint frame 23, a connecting shaft 22, and a set screw 21. The support arm 16 is rotatably connected to the support arm joint frame 23 via the connecting shaft 22. An arc-shaped through hole is provided on the support arm joint frame 23, and the set screw 21 is located in the arc-shaped through hole. The support arm slide 24 is fixedly connected to the support arm joint frame 23. A sliding groove is provided on the support arm beam 15 along its length direction, and the support arm slide 24 is slidably connected to the sliding groove.

[0052] In this embodiment, the support arm 16 is rotatably connected to the support arm joint frame 23 via the connecting shaft 22. In actual use, the support arm 16 is first rotated to the required opening angle as needed, and then the set screw 21 is tightened so that the free end of the set screw 21 presses against the surface of the support arm 16, thereby restricting its continued rotation. To ensure the restricting effect, the surface of the support arm 16 is provided with a limiting groove for the set screw 21 to engage. For example, the limiting groove can be designed as an arc-shaped groove that matches the shape and position of the arc-shaped through hole.

[0053] In this embodiment, the structure of the support arm slide 24 matches the structure of the slide groove. The support arm slide 24 can slide in the slide groove, thereby driving the movement of the support arm joint frame 23 fixedly connected to it, and further driving the movement of the support arm 16, ultimately realizing the flexible adjustment of the spacing between each support arm 16.

[0054] As a preferred technical solution, in another embodiment of this utility model, there are three support arms 16. The three support arms 16 are arranged parallel to each other and at the same height on the support arm beam 15. The middle support arm 16 has a straight structure, and the support arms on both sides have a broken line structure. Limiting structures are provided at both ends of the slide groove.

[0055] In this embodiment, the zigzag support arms on both sides are located on both sides of the straight support arm and are arranged opposite to each other. The three support arms 16 are parallel and at the same height to provide good support for each sling 17. The three slings 17 are located under the patient 18 at the head, neck and shoulder area, waist and hip area, and leg and knee joint area, respectively. This design can relatively safely, comfortably and stably lift the patient 18 and move him to the target position.

[0056] In this embodiment, to prevent the uncontrolled sliding of the two side support arms 16 from causing them to fall out of the chute or cause an accident, it is preferable to provide a limiting structure, such as a limiting plate, at both ends of the chute.

[0057] As a preferred technical solution, in another embodiment of this utility model, the support arm 16 is provided with a limiting structure for restricting the movement of the sling 17.

[0058] In this embodiment, the limiting structure can specifically be a clamping structure fixed to the support arm 16. When the sling 17 is fitted onto the support arm 16 through the perforation, the clamping structure clamps the portion of the sling 17 around the perforation. Alternatively, the limiting structure can be a slot provided on the support arm 16. When the sling 17 is fitted onto the support arm 16 through the perforation, the portion of the sling 17 around the perforation is precisely located within the slot. Of course, the limiting structure can also be other structures from the prior art. The limiting structure, on the one hand, can further improve the stability of the sling 17's movement during the relocation operation, and on the other hand, can increase the safety factor of the relocation operation, ensuring that the relocation operation is carried out smoothly, safely, and efficiently.

[0059] As a preferred technical solution, in another embodiment of this utility model, the ball bearing turntable 3 includes an inner ring and an outer ring, the inner ring rotates relative to the outer ring, the outer ring is fixed on the base 2, and the vertical support member 6 is fixedly connected to the inner ring.

[0060] As a preferred technical solution, in another embodiment of this utility model, the bottom of the vertical support member 6 is provided with a vertical support member base plate 27, the vertical support member 6 is fixedly connected to the inner ring through the vertical support member base plate 27, at least one pin 4 is provided on the vertical support member base plate 27, and a rotary support base plate is fixed on the outer periphery of the outer ring, and a plurality of insertion holes corresponding to the structure of the pin 4 are provided on the rotary support base plate.

[0061] In this embodiment, the pin 4 is preferably a spring pin, and a rotary support base plate is fixed to the outer periphery of the outer ring. The rotary support base plate is provided with a plurality of insertion holes corresponding to the structure of the pin 4.

[0062] In this embodiment, the pin 4 is mainly used to restrict the rotation of the rotating component. When the rotating component rotates to the target position, the pin 4 is inserted into the socket, and the inner ring can no longer rotate relative to the outer ring to prevent accidents caused by misoperation.

[0063] As a preferred technical solution, in another embodiment of this utility model, the linear guide rail 11 is installed on the vertical support member 6, and the hydraulic cylinder 7 is installed inside the vertical support member 6. This design makes the overall structure layout more compact and regular.

[0064] Any part that facilitates the operator's hand action to push the shifting mechanism forward or rotate can serve as the operating part. As a preferred embodiment of the present invention, the operating part is a handrail 10. The handrail 10 can be part of the support arm beam 15, a separately designed independent component, or an integral structure with the support arm beam 15.

[0065] As a preferred technical solution, in another embodiment of this utility model, the handrail 10 is a U-shaped handrail, the U-shaped handrail is vertically arranged and its two free ends are respectively perpendicular to and fixedly connected to the support arm beam 15.

[0066] In this embodiment, the U-shaped handrail and the support arm beam 15 are designed with a certain distance between them, and the handrail has a long lever arm. Therefore, the operator can move and rotate the shifting mechanism with a relatively small force applied to the U-shaped handrail. The structure is simple, the operation is convenient, and it saves time and effort.

[0067] As a preferred technical solution, in another embodiment of this utility model, the bottom of the base 2 is provided with casters 1, and the casters 1 are heavy-duty casters.

[0068] In this embodiment, in order to improve the load-bearing capacity of the displacement mechanism and provide better protection for the displacement operation, the caster 1 is preferably a heavy-duty caster. The heavy-duty caster can withstand a great weight and be used for a long time under high load. Its synergistic effect with the counterweight can improve the safety of the displacement mechanism during use and reduce the occurrence of accidents.

[0069] In summary, all functional components of this utility model adopt a humanized design, and their synergistic effect significantly improves the safety and comfort of patient relocation. The overall structure is compact, scientifically designed, easy to use, widely applicable, and highly practical.

[0070] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions, and variations to the above embodiments within the scope of the present invention. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

Claims

1. A shifting mechanism for a patient transfer bed, comprising: include: The load-bearing components, vertical support (6), rotating components, hand pump hydraulic components, and a base (2) with movable function; The load-bearing component includes: a support arm beam (15), a support arm (16), and a detachable sling (17) that is hung on the support arm (16). One end of each of the support arms (16) is rotatably connected to a connector. The connector is slidably connected to the support arm beam (15) along the length of the support arm beam (15). An operating part is also provided on the side of the support arm beam (15) opposite to the support arm (16). The opening angle of the support arm (16) and the distance between two adjacent support arms (16) can be adjusted by the connector. The rotating component is a ball bearing turntable (3); The hand pump hydraulic assembly includes: a hydraulic cylinder (7), a hand pump (8), a linear guide rail (11), a slider bracket (13), a slider (14), and a hydraulic tank (25). The hydraulic tank (25) is connected to the hydraulic cylinder (7) via the hand pump (8). An adjustable flow valve (9), an overflow valve (29), and a pressure gauge (28) are also provided on the oil pipe between the hydraulic tank (25) and the hydraulic cylinder (7). A piston rod (26) is provided inside the hydraulic cylinder (7). A hand pump operating lever (12) is provided on the hand pump (8). The slider (14) can be raised and lowered along the height direction of the linear guide rail (11) under the action of the piston rod (26). The slider (14) is fixedly connected to the support arm beam (15) via the slider bracket (13). A counterweight is provided on one end of the base (2) opposite to the vertical support (6); The hand pump hydraulic assembly drives the support arm beam (15) to slide up and down along the height direction of the vertical support member (6); the vertical support member (6) is installed on the base (2) through the ball bearing turntable (3), and the manual operation of the operating part can realize the vertical support member (6) to rotate 360° in the horizontal direction.

2. The displacement mechanism for a patient transfer bed of claim 1, wherein, The connector includes: a support arm slide (24), a support arm joint frame (23), a connecting shaft (22), and a set screw (21). The support arm (16) is rotatably connected to the support arm joint frame (23) through the connecting shaft (22). An arc-shaped through hole is provided on the support arm joint frame (23), and the set screw (21) is located in the arc-shaped through hole. The support arm slide (24) is fixedly connected to the support arm joint frame (23). A sliding groove is provided on the support arm crossbeam (15) along its length direction, and the support arm slide (24) is slidably connected to the sliding groove.

3. The displacement mechanism for a patient transfer bed of claim 2, wherein, There are 3 support arms (16). The 3 support arms (16) are set on the support arm beam (15) in parallel and at the same height. The middle support arm (16) is a straight structure, and the support arms on both sides are broken line structures. Limiting structures are provided at both ends of the slide.

4. The displacement mechanism for a patient transfer bed of claim 1, wherein, The support arm (16) is provided with a limiting structure to restrict the movement of the sling (17).

5. The displacement mechanism for a patient transfer bed of claim 1, wherein, The ball bearing turntable (3) includes an inner ring and an outer ring. The inner ring rotates relative to the outer ring. The outer ring is fixed on the base (2). The vertical support (6) is fixedly connected to the inner ring.

6. The displacement mechanism for a patient transfer bed of claim 5, wherein, The bottom of the vertical support (6) is provided with a vertical support bottom plate (27), the vertical support (6) is fixedly connected with the inner ring through the vertical support bottom plate (27), at least one bolt (4) is arranged on the vertical support bottom plate (27), the outer periphery of the outer ring is fixedly provided with a rotary support bottom plate, and a plurality of bolt holes corresponding to the structure of the bolt (4) are arranged on the rotary support bottom plate.

7. The displacement mechanism for a patient transfer bed of claim 1, wherein, The linear guide rail (11) is mounted on the vertical support (6), and the hydraulic oil cylinder (7) is mounted in the vertical support (6).

8. The displacement mechanism for a patient transfer bed of claim 1, wherein, The operation part is a handrail (10).

9. The displacement mechanism for a patient transfer bed of claim 8, wherein, The handrail (10) is a U-shaped handrail, the U-shaped handrail is vertically arranged, and two free ends are vertically and fixedly connected with the support arm cross beam (15) respectively.

10. A shifting mechanism for a patient turning table according to any of claims 1-9, characterized in that, The bottom of the base (2) is provided with a castor (1), and the castor (1) is a heavy-duty castor.

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