CN113262119A

CN113262119A - Stable and reliable transfer device and transfer method for bedridden patients

Info

Publication number: CN113262119A
Application number: CN202110547057.3A
Authority: CN
Inventors: 马明建
Original assignee: Luoyang Wellgen Bioengineering Co ltd
Current assignee: Luoyang Wellgen Bioengineering Co ltd
Priority date: 2021-05-19
Filing date: 2021-05-19
Publication date: 2021-08-17

Abstract

A stable and reliable transfer device for bedridden patients comprises a transfer bed board, a transfer vehicle, a hook hoisting mechanism and a brake mechanism; the bed board is used for horizontally placing the patient; the transfer vehicle comprises a bottom plate, a door-shaped upright post and an upper suspension, and universal wheels are arranged on the bottom plate; the hook hoisting mechanism comprises a rigid hook body and a hoisting machine, the rigid hook body is used for hooking and transferring the bed board, and the hoisting machine is used for hoisting the rigid hook body; the rotary supporting rod is used for supporting the transfer bed plate; the brake mechanism can realize four-wheel synchronous braking. A transfer device method realizes the transfer from a bed of a bedridden patient to a bed or from the bed to a medical detection platform by using the transfer device, reduces the physical consumption of medical care personnel and does not increase the pain of the patient. The invention has the following beneficial effects: 1. the device is flexible to move and convenient to use, and can realize stopping and self-locking at any height; 2. the movement is stable and reliable, and the pain of the patient is not increased; 3. the four-wheel synchronous brake is reliable and controllable, which is particularly important for slope braking.

Description

Stable and reliable transfer device and transfer method for bedridden patients

Technical Field

The invention relates to the field of medical instruments, in particular to a transfer device capable of stably and reliably transferring a bedridden patient and a transfer method using the transfer device.

Background

When performing surgery or physical examination using large equipment such as B-mode ultrasound, CT, or nuclear magnetic resonance, it is necessary to frequently transfer a bedridden patient. How to easily and smoothly transfer the patient without increasing the pain of the patient is a problem which troubles medical care personnel. In the existing method, medical staff jointly lift a patient from a hospital bed to a movable bed, and then lift the patient from the movable bed to a workbench of equipment after moving to a specified place. In the process, more than two medical workers need to complete the operation together, which not only wastes time and labor, but also increases the pain of patients. The moving beds on the market at present mainly comprise the following types:

1. the simple moving bed can be regarded as a trolley capable of placing a stretcher, the moving bed is simple in structure, but when the stretcher is pushed on an uneven road surface such as an up-down slope, a patient feels bumpy, and the up-down patient needs to be manually lifted. In addition, each universal wheel is independently controlled by a brake, so that the operation is inconvenient.

2. The multifunctional moving bed has more functions than a simple moving bed, and has the functions of lifting and lifting the upper part of the body and the like. The moving bed has the advantages of complex structure, large size, poor trafficability, inconvenient movement in a narrow space and still need to be manually lifted and placed by patients who get on or off the bed.

3. The invention discloses a special moving bed, such as a transfer and nursing device for paralyzed patients, which is disclosed in the invention patent of CN 112353596A, and the invention utilizes the matching of a screw rod and a nut mechanism and a hydraulic cylinder to clamp and lift the whole mattress, and realizes the transfer of the patients through manual pushing. The disadvantages of the invention are quite obvious: the appearance is larger than that of a sickbed, the trafficability is poor, and the transportation is very inconvenient; the hydraulic cylinder needs a set of hydraulic system to drive, and the whole device is very heavy and has no brake device. For another example, CN 206391102U discloses an improved medical movable hospital bed, in which the movable bed realizes the lifting of the bed board through the mutually crossed rod-shaped structures, and a plurality of springs are installed under the bed board for buffering; the moving bed is not provided with a brake device, and a patient is placed on the bed plate by a nursing staff and is pushed manually.

As can be seen from the above, although the structures of the mobile sickbed or patient moving device existing in the market or given in the patent are different, the working principles and the functions implemented by the mobile sickbed or patient moving device are different, and the following problems generally exist: firstly, the patient needs to be lifted up manually and then put on the movable bed, so that the pain of the patient is increased, and even the patient is possibly damaged; secondly, the device is heavy, poor in trafficability and inconvenient to transport; and thirdly, no brake is provided or four wheels (or two wheels) only have independent brakes and no synchronous and coordinated brake device is provided, so that the brake is inconvenient and unreliable, and potential safety hazards are brought to the transfer of patients.

Disclosure of Invention

In order to overcome the defects in the background technology, the invention discloses a stable and reliable transfer device for bedridden patients and a transfer method using the transfer device, which adopts the following technical scheme:

a smooth and reliable bedridden patient transfer device comprising:

the bed board is used for horizontally placing the patient;

the transfer vehicle comprises a bottom plate with a C-shaped structure, a door-shaped upright post and an upper suspension, wherein four universal wheels for moving are arranged at four corners of the bottom plate;

the hook hoisting mechanism comprises a rigid hook body and a hoisting machine, wherein the rigid hook body is connected with the upper suspension in a sliding fit manner and used for hooking the transfer bed board, and the hoisting machine is used for hoisting the rigid hook body;

the pair of rotary supporting rods is used for supporting the transfer bed board and comprises a rod body, wherein a rotating shaft and an inserting positioning pin which are matched with the door-shaped stand column are arranged on the rod body, the rotating shaft is used for vertically rotating the rod body, and the inserting positioning pin is used for horizontally fixing the rod body on the door-shaped stand column;

the brake mechanism comprises a slide bar and a spring which are arranged in each universal wheel fork-shaped wheel frame shaft, wherein a brake disc is arranged at the upper end of the slide bar, a brake pad is arranged at the lower end of the slide bar, and the spring is used for enabling the brake pad to be separated from the contact with the wheel; eccentric wheels are arranged above the brake discs and are connected with a hand brake rod through a transmission pair; when the hand brake rod swings, each eccentric wheel presses down the corresponding brake disc, so that each brake pad is pressed against the corresponding wheel.

According to the further improved technical scheme, the rigid hook body comprises a hanging plate, four downwards extending hanging rods and four upwards extending guide rods are connected to four corners of the hanging plate, and the guide rods are connected with the upper suspension in a sliding fit manner; the lower end of the suspender is provided with a rotary hook plate, and the rotary hook plate is hooked on the bottom surface of the transfer bed board after horizontally rotating.

The technical scheme is further improved, four bosses are arranged at four corners of the bottom surface of the transfer bed board and used for limiting the rotation angle of the rotating hook plate; the head and foot ends of the transfer bed board are provided with baffle plates for preventing the patient from sliding down.

The technical scheme is further improved, and the transmission pair is a chain and chain wheel transmission pair or a synchronous belt transmission pair.

According to the technical scheme, the hoister is a manual hoister and comprises a worm and gear speed reducer, a hand wheel is connected to the input end of the worm and gear speed reducer, a hoisting drum is connected to the output end of the worm and gear speed reducer, and the hoisting drum is connected with the rigid hook body through a steel wire rope and a fixed pulley.

Further improve technical scheme, the body of rod is the flexible body of rod, including last body of rod and lower body of rod, is equipped with corresponding spout slide rail cooperation structure on last body of rod and the lower body of rod respectively to and be used for locking the locking knob of the body of rod and the lower body of rod.

Further improve technical scheme, be equipped with twice strengthening rib on the bottom surface that shifts the bed board, be equipped with two recesses at the both ends of every strengthening rib, be equipped with one respectively on the upper rod body and the lower rod body and correspond the shock absorption buffer block of block with the recess.

The technical scheme is further improved, a telescopic handle is arranged on the bottom plate and comprises a frame-shaped handle body, a pair of inserting strips is connected to the lower end of the frame-shaped handle body, and inserting sleeves which are inserted and combined with the inserting strips correspondingly are arranged on the bottom plate; the inserting strip is provided with a plurality of inserting holes, and the inserting combination sleeve is provided with inserting pins which are correspondingly inserted into the inserting holes.

A transfer method is characterized in that: the method comprises the following steps:

step 1: placing the transfer bed board on one side of the sickbed, and then moving the patient to the transfer bed board;

step 2: pushing the transfer device to one side of the sickbed to enable the rigid hook body to be positioned right above the transfer bed plate, and tensioning the hand brake rod;

and step 3: the rigid hook body is lowered through the elevator, so that the four rotating hook plates are hooked on the bottom surface of the transfer bed plate, and then the rigid hook body is raised, so that the transfer bed plate is separated from the sickbed;

and 4, step 4: the rotating support rod is operated to be horizontally fixed, and then the rotating support rod is supported on the bottom surface of the transfer bed board in cooperation with the lifting of the rigid hook body;

and 5: and (3) loosening the hand brake rod, moving the transfer device to a designated position, then reversely operating the steps, transferring the patient to a sickbed or a medical detection platform, and drawing out the transfer bed plate to finish the transfer of the patient.

According to the technical scheme, the transfer bed board is made of non-conductive materials, in the step 5, the transfer bed board is transferred on the medical detection platform together with the patient, and the transfer bed board is not drawn out.

Due to the adoption of the technical scheme, compared with the background technology, the invention has the following beneficial effects:

1. flexible movement and convenient use

The separation design of the transfer bed board and the transfer vehicle is convenient for realizing getting on and getting off of the patient; the transfer vehicle has small volume and stable gravity center, and can still move and turn in a narrow space after carrying people.

2. Stable movement without increasing the pain of the patient

The device can ensure the stability and reliability of movement no matter ascending, descending or walking, and can also reduce the pain of the patient caused by vibration.

3. Reliable and controllable brake

Compared with the traditional transfer vehicle with two fixed wheels and two driving wheels, the four-wheel synchronous brake has uniform and large braking force and can prevent the transfer vehicle from deviating during braking; compared with the traditional independent brake, the brake pedal for treading four wheels around the vehicle body by medical personnel is avoided, which is particularly important for slope braking.

4. Safe and reliable

The device can position the transfer bed board, prevent the transfer bed board from sliding and prevent a patient from falling out; the worm gear mechanism has self-locking performance, and can realize stopping and self-locking at any height.

Drawings

Fig. 1-2 are schematic structural views of the transfer bed plate.

Fig. 3 is a schematic structural view of the transfer cart.

Fig. 4 is a schematic structural view of the rigid hanger body.

Fig. 5 is a schematic structural view of the manual hoist.

Fig. 6 is a schematic structural view of the rotation support rod.

Fig. 7 is a schematic view of a braking structure of the wheel.

FIG. 8 is a schematic view of the connection structure of the eccentric wheel.

Fig. 9 is a schematic structural view of the telescopic handle.

FIG. 10 is a schematic view of a latch assembly.

Fig. 11-14 are schematic views illustrating the operation of the present invention.

In the figure: 1. transferring the bed plate; 11. a boss; 12. a baffle plate; 13. a groove; 2. a transfer vehicle; 21. a base plate; 22. a door-shaped upright post; 23. an upper suspension; 3. a rigid hanger body; 31. a hanger plate; 32. a boom; 33. a guide bar; 34. reinforcing the connecting plate; 35. rotating the hook plate; 36. a hoisting ring; 4. a manual hoist; 41. a hand wheel; 42. a worm gear reducer; 43. a hoisting drum; 44. a wire rope; 45. a fixed pulley; 5. rotating the support rod; 51. a rod body is arranged; 52. a lower rod body; 53. locking the knob; 54. a rotating shaft; 55. inserting and combining the positioning pins; 56. a shock absorbing buffer block; 6. a brake mechanism; 61. a fork carriage shaft; 62. a brake disc; 63. a brake pad; 64. an eccentric wheel; 65. a drive shaft; 66. a chain transmission pair; 67. a hand brake lever; 68. a wheel; 69. a long spring; 7. a telescopic handle; 71. a frame-shaped handle body; 72. cutting; 73. inserting and fitting; 74. a bolt seat; 75. positioning pins; 76. and (5) pressing a spring.

Detailed Description

Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are for convenience of description only, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. It should also be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Example 1:

a stable and reliable transfer device for bedridden patients comprises a transfer bed board 1, a transfer trolley 2, a hook hoisting mechanism, a pair of rotary support rods 5, a brake mechanism 6 and a telescopic handle 7. In this embodiment, the device is used to transfer a bedridden patient from one bed to another, the structure and function of which are described in detail below.

As shown in fig. 1-2, the transfer bed board 1 is used for placing a patient in a lying state, and is matched with the transfer cart 2 to transfer the patient in the lying state. The transfer bed board 1 has a small thickness and a small width. The thinner thickness facilitates patient transfer and the narrower width reduces the space required for transport. In order to prevent the patient from sliding down on the slope in the transferring process, a baffle 12 for preventing the patient from sliding down is arranged at the head and foot end of the transferring bed board 1. Four bosses 11 are arranged at four corners of the bottom surface of the transfer bed board 1, two transverse reinforcing ribs are arranged at the middle part of the bottom surface of the transfer bed board 1, and two grooves 13 are arranged at two ends of each transverse reinforcing rib.

As shown in fig. 3, the transfer cart 2 includes a bottom plate 21 having a C-shaped structure, a gate pillar 22, and an upper suspension 23, and four universal wheels for movement are provided at four corners of the bottom plate 21. Such a design enables the bottom plate 21 to enter the bottom of the bed with the upper suspension 23 located directly above the bed. The transfer vehicle 2 can rotate in place by adopting universal wheels completely, and is more flexible.

The hooking and lifting mechanism comprises a rigid hooking body 3 and a lifter, wherein the rigid hooking body 3 is used for hooking and transferring the bed board 1. Specifically, as shown in fig. 4, the rigid hanger 3 includes a hanging plate 31, four hanging rods 32 extending downward and four guide rods 33 extending upward are connected to four corners of the hanging plate 31, wherein the guide rods 33 are connected with the upper suspension 23 in a sliding fit manner. It should be noted that the guide rod 33 may be a round rod or a non-round rod, such as a quadrangular rod or a hexagonal rod. To reinforce the rigidity of the four guide rods 33, U-shaped reinforcing connecting plates 34 are connected to the upper ends of the four guide rods 33. A rotary hook plate 35 is provided at the lower end of the hanger 32, and the rotary hook plate 35 is horizontally rotated and then hooked on the bottom surface of the transfer table board 1. Four bosses 11 are provided at four corners of the bottom surface of the transfer bed board 1 to limit the rotation angle of the rotary hook plate, and prevent the rotary hook plate from rotating excessively and getting off the hook on the transfer bed board 1.

In this embodiment, the hoisting machine is a manual hoist 4 for hoisting the rigid hooking body 3. Specifically, as shown in fig. 5, the manual hoist 4 is disposed on the gate column 22, and includes a worm gear reducer 42, a hand wheel 41 is connected to an input end of the worm gear reducer 42, a hoist drum 43 is connected to an output end of the worm gear reducer 42, and the hoist drum 43 is connected to a hoisting ring 36 provided on the hoisting plate 31 through a wire rope 44 and a fixed pulley 45. The worm gear reducer 42 has a self-locking function, and can lock the lifting height of the rigid hook 3 at any position after the hand wheel 41 is loosened.

The pair of rotary support rods 5 are used for supporting the transfer bed plate 1, as shown in fig. 6, each rotary support rod 5 comprises a rod body, a rotating shaft 54 and an inserting positioning pin 55 are arranged on each rod body, the rotating shaft 54 is matched with the door-shaped upright post 22 and used for vertically rotating the rod body, and the inserting positioning pin 55 is used for horizontally fixing the rod body on the door-shaped upright post 22. In order to adapt to the transfer bed boards 1 with different widths, the rod body is a telescopic rod body and comprises an upper rod body 51 and a lower rod body 52, corresponding sliding groove and sliding rail matching structures are respectively arranged on the upper rod body 51 and the lower rod body 52, and a locking knob 53 for locking the upper rod body 51 and the lower rod body 52 is used, so that the length of the rotary supporting rod 5 can be adjusted. A shock absorbing buffer block 56 is respectively arranged on the upper rod body 51 and the lower rod body 52 and correspondingly clamped with the groove 13. The groove 13 is clamped with the vibration absorption buffer block 56, so that firstly, the transfer bed board 1 is positioned, and the transfer bed board 1 is prevented from slipping; secondly, in the transferring process, the pain of the patient caused by the vibration is relieved.

The brake mechanism 6 is used for synchronous braking of four universal wheels, and as shown in fig. 7, a stepped shaft hole with a large upper part and a small lower part is arranged in a fork-shaped wheel frame shaft 61 of the universal wheel, a slide rod and a long spring 69 are arranged in the stepped shaft hole, and the slide rod is connected with a smaller hole at the lower part of the stepped shaft hole in a sliding fit manner. The upper end of the slide bar is provided with a brake disc 62, and the lower end of the slide bar is provided with a brake block 63. The long spring 69 is positioned in a larger hole at the upper part of the stepped shaft hole, the upper end surface of the long spring is abutted against the brake disc 62, and when the brake disc is in a non-braking state, the long spring 69 can enable the brake pad 63 to be separated from the contact with the rolling surface of the wheel 68, so that the rolling resistance of the wheel 68 is reduced.

As shown in fig. 8, an eccentric wheel 64 is provided above the brake disc 62, the four eccentric wheels 64 are connected two by two transmission shafts 65, and the two transmission shafts 65 are mounted on the base plate 21 by bearing seats. The two transmission shafts 65 are connected through a first chain sprocket transmission pair 66, and one of the transmission shafts is connected with a brake lever 67 arranged on the door-shaped upright post 22 through a second chain sprocket transmission pair 66. When the hand brake lever 67 is tightened, each eccentric wheel 64 is driven by the chain transmission pair 66 and the transmission shaft 65 to rotate, and the corresponding brake disc 62 is pressed downwards, so that each brake pad 63 is pressed against the corresponding wheel 68, and all four universal wheels are in a braking state. Compared with the traditional transfer vehicle with two fixed wheels and two driving wheels, the four-wheel synchronous braking mode has uniform and large braking force and can prevent the transfer vehicle from deviating during braking; compared with the traditional independent brake, the brake pedal for four wheels is prevented from being stepped by medical staff around the vehicle body, which is particularly important for the brake on a slope road.

The telescopic handle 7 is provided on the floor 21 for pushing the transfer cart 2. Specifically, as shown in fig. 9, the telescopic handle 7 includes a frame-shaped handle body 71, a pair of insertion bars 72 is connected to a lower end of the frame-shaped handle body 71, an insertion sleeve 73 corresponding to the insertion bars 72 is provided on the base plate 21, and a plug member for positioning an insertion position of the insertion bars 72 is provided on the insertion sleeve 73. The telescopic handle 7 capable of being adjusted and detached is arranged, so that the transfer trolley can avoid the bed head or the bed tail of a common ward when a patient is transferred, and the operating distance from the telescopic handle 7 to the transfer trolley can be adjusted.

As shown in fig. 10, the latch assembly includes a latch housing 74, a detent pin 75 having a pull ring at one end, and a compression spring 76 extending the insertion end of the detent pin 75 out of the latch housing 74. When the inserting position of the insert 72 in the inserting sleeve 73 is adjusted, the positioning pin 75 is pulled up by the pull ring and the insert 72 is moved, and the pull ring is released at a proper position, so that the positioning pin 75 is inserted into the insert 72 again. The structure of the plug pin assembly is equally applicable to the bayonet pin 55 based on the same principle.

In order to guide the use of the transfer device, the invention also discloses a transfer method using the transfer device, which comprises the following steps:

step 1, as shown in fig. 11-12, the transfer bed board 1 is placed on one side of the hospital bed, and then the patient is translated to the transfer bed board 1. For the patient who can turn on one's side, can turn on one's side earlier to reduce the amount of movement to patient. Because the transfer bed board 1 is thin and has a smooth surface, the patient can be easily moved by only two medical workers or even one medical worker, and the physical consumption of the medical workers can be greatly reduced.

And 2, pushing the transfer device to one side of a sickbed, enabling the rigid hook body 3 to be positioned right above the transfer bed plate 1, and tensioning the hand brake rod 67. The C-shaped configuration of the transfer cart 2 enables the floor 21 to enter the bottom of the bed with the upper suspension 23 positioned directly above the bed. After the bed board 1 is hooked and transferred, the gravity center of the transfer trolley 2 can be stabilized by the C-shaped structure, and the side turning is prevented.

And 3, as shown in fig. 13, lowering the rigid hook 3 by the manual winch 4, enabling the four rotating hook plates to be hooked on the bottom surface of the transfer bed plate 1, and then lifting the rigid hook 3 to a certain height by the manual winch 4 to enable the transfer bed plate to leave the sickbed.

Step 4, as shown in fig. 14, the inserting positioning pin 55 is pulled, the rotating support rod 5 is rotated to horizontally fix the rotating support rod 5, and then the vibration absorption buffer block 56 on the rotating support rod 5 is clamped in the groove 13 in cooperation with the lifting of the rigid hook 3, so as to fix and support the transfer bed board 1.

And 5, loosening the hand brake rod 67, moving the transfer device to a specified position, reversely operating the steps, transferring the patient to a sickbed, drawing out the transfer bed plate 1, and completing the transfer of the patient.

In the above steps, since the four suspenders 32 block the lateral direction of the patient, the patient can be prevented from rolling off laterally. By the same token, the transfer device may also be used to move a bedridden patient from a hospital room to an operating room, or from an ambulance to a hospital room or examination room.

Example 2:

in this embodiment, the transfer device is used to move a bedridden patient from a ward to a detection platform of a detection device such as a CT room or a nuclear magnetic resonance room, so as to facilitate the examination of the patient.

This example differs from example 1 in that:

1. the hoister is a lead screw nut transmission pair driven by a hand wheel and a speed reducer, and the other end of the lead screw nut transmission pair is connected to the rigid hook body 3.

2. Each eccentric wheel 64 is connected with the hand brake rod 67 through a synchronous belt transmission pair, or is connected with the hand brake rod 67 through a rope pulley transmission pair.

3. During braking, the brake pads 63 are pressed against the sides of the wheels 68.

4. The vibration absorbing buffer 56 is a vibration absorbing spring.

5. The transfer vehicle is provided with a transfusion stand for hanging a transfusion bottle.

As can be seen from the above, the same effects as those of embodiment 1 can be obtained by replacing the above configuration.

In order to reduce the workload of the transfer and simplify the operation steps, unlike the transfer method of embodiment 1, in step 5, the transfer table 1 may be directly placed on a detection platform of a CT room or a nmr room and detected together with the patient. Therefore, the patient does not need to move to the detection platform, and the bed plate does not need to be drawn out when being transferred. After the detection is finished, the patient and the transfer bed board are directly moved away by the transfer device. In order to exclude the influence of the conductive material on the detection, the transfer bed plate is made of engineering plastics of non-conductive materials.

The details of which are not described in the prior art. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A steady and reliable transfer device for bedridden patients is characterized in that: the method comprises the following steps:

the bed board is used for horizontally placing the patient;

2. A stable and reliable bedridden patient transfer device as claimed in claim 1 wherein: the rigid hook body comprises a hanging plate, four downwards extending hanging rods and four upwards extending guide rods are connected to four corners of the hanging plate, and the guide rods are connected with the upper suspension in a sliding fit manner; the lower end of the suspender is provided with a rotary hook plate, and the rotary hook plate is hooked on the bottom surface of the transfer bed board after horizontally rotating.

3. A stable and reliable bedridden patient transfer device as claimed in claim 2 wherein: four bosses are arranged at four corners of the bottom surface of the transfer bed plate and used for limiting the rotation angle of the rotating hook plate; the head and foot ends of the transfer bed board are provided with baffle plates for preventing the patient from sliding down.

4. A stable and reliable bedridden patient transfer device as claimed in claim 1 wherein: the transmission pair is a chain and chain wheel transmission pair or a synchronous belt transmission pair.

5. A stable and reliable bedridden patient transfer device as claimed in claim 1 wherein: the hoister is a manual hoister and comprises a worm gear speed reducer, a hand wheel is connected to the input end of the worm gear speed reducer, a hoisting drum is connected to the output end of the worm gear speed reducer, and the hoisting drum is connected with the rigid hook body through a steel wire rope and a fixed pulley.

6. A stable and reliable bedridden patient transfer device as claimed in claim 1 wherein: the body of rod is the flexible body of rod, including the upper rod body and the lower body of rod, is equipped with corresponding spout slide rail cooperation structure on the upper rod body and the lower body of rod respectively to and be used for locking the locking knob of the upper rod body and the lower body of rod.

7. The ambulatory patient transfer device as set forth in claim 6, further comprising: two reinforcing ribs are arranged on the bottom surface of the transfer bed board, two grooves are arranged at two ends of each reinforcing rib, and a vibration absorption buffer block which is correspondingly clamped with the grooves is respectively arranged on the upper rod body and the lower rod body.

8. A stable and reliable bedridden patient transfer device as claimed in claim 1 wherein: the bottom plate is provided with a telescopic handle, the telescopic handle comprises a frame-shaped handle body, the lower end of the frame-shaped handle body is connected with a pair of inserting strips, and the bottom plate is provided with an inserting sleeve which is inserted and combined with the inserting strips correspondingly; the inserting strip is provided with a plurality of inserting holes, and the inserting combination sleeve is provided with inserting pins which are correspondingly inserted into the inserting holes.

9. A transfer method using the transfer apparatus according to any one of claims 1 to 8, characterized by: the method comprises the following steps:

step 4, operating the rotating support rod to horizontally fix the rotating support rod, and then supporting the rotating support rod on the bottom surface of the transfer bed board in cooperation with the lifting of the rigid hook body;

and 5, loosening the hand brake rod, moving the transfer device to a designated position, then reversely operating the steps, transferring the patient to a sickbed or a medical detection platform, and drawing out the transfer bed plate to finish the transfer of the patient.

10. A transfer method as claimed in claim 9, wherein: the transfer bed board is made of a non-conductive material, and in step 5, the transfer bed board together with the patient is transferred onto the medical detection platform without drawing out the transfer bed board.