CN113509324B

CN113509324B - Severe patient transfer device and using method

Info

Publication number: CN113509324B
Application number: CN202110549790.9A
Authority: CN
Inventors: 陈哲; 赵红鑫; 孙慧芳; 宋锐; 唐高博
Original assignee: Jiamusi University
Current assignee: Jiamusi University
Priority date: 2021-05-20
Filing date: 2021-05-20
Publication date: 2022-05-31
Anticipated expiration: 2041-05-20
Also published as: CN113509324A

Abstract

A transfer device for serious patients and a using method thereof comprise a positioning mechanism, a bed board mechanism, a bed frame mechanism, a base mechanism and a protective plate, wherein the positioning mechanism comprises a slide block, a slide seat, a sealing plate, a spring and a handle, the bed board mechanism comprises a positioning mechanism, a bed board, a guardrail, a stop rod and a connecting rod, the bed frame mechanism comprises a bed frame, a wheel shaft and wheels, the base mechanism comprises a base, a swing frame, a base shaft and universal wheels, 2 wheel shaft holes which are arranged in bilateral symmetry are arranged at the bottom of the bed frame, 1 wheel shaft is fixedly connected inside each wheel shaft hole, 1 wheel is rotatably connected on each wheel shaft, the lower part of the bed board is fixedly connected with the upper part of the bed frame, 1 stand column is respectively arranged on each side of the base, coaxial base holes are arranged on the upper parts of the 2 stand columns, the stop shaft is arranged in the middle of the base, 1 symmetrically arranged fan ring surface is respectively arranged on each stop shaft side, a pendulum hammer hole is arranged on the upper part of the swing frame, a pendulum hammer is arranged on the lower part of the swing frame, the rear side of the swing frame is provided with a fan ring surface.

Description

Severe patient transfer device and using method

Technical Field

The invention relates to the field of medical instruments, in particular to a severe patient transfer device and a using method thereof.

Background

In severe patient's transportation, often can lead to the fact the patient to slide or weigh down the bed even through slope or inclined road surface, also can cause rocking of rescue instrument, this can aggravate the patient's state of an illness, the unexpected damage appears even, lacks a transport bed that makes the patient keep balance and prevent that the patient from falling.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the severe patient transfer device capable of keeping the balance of the patient and preventing the patient from falling and the use method thereof.

The purpose of the invention is realized by the following technical scheme:

a transfer device for severe patients comprises a positioning mechanism, a bed board mechanism, a bed frame mechanism, a base mechanism and a protective board, wherein the positioning mechanism comprises a sliding block, a sliding seat, a sealing plate, a spring and a handle, the bed board mechanism comprises a positioning mechanism, a bed board, a guardrail, a stop rod and a connecting rod, the bed frame mechanism comprises a bed frame, a wheel shaft and wheels, the base mechanism comprises a base, a swing frame, a base shaft and universal wheels, 2 wheel shaft holes are symmetrically arranged at the bottom of the bed frame, 1 wheel shaft is fixedly connected inside each wheel shaft hole, 1 wheel is rotatably connected to two sides of each wheel shaft, the lower part of the bed board is fixedly connected to the upper part of the bed frame, 1 stand column is respectively arranged at two sides of the base, coaxial base holes are arranged at the upper parts of the 2 stand columns, the stop shaft is arranged in the middle of the base, 1 symmetrically arranged fan ring surface is respectively arranged at two sides of the stop shaft, a pendulum hole is arranged at the upper part of the swing frame, a pendulum bob is arranged at the lower part of the swing frame, the rocker rear side has the fan anchor ring, and fan anchor ring both sides respectively have 1 locking axle, and base jogged joint base axle rotates in the middle of the base axle and connects the pendulum hole, and the rocker rotates around the base axle, and the pendulum slides in the pendulum arc, and the direction arc is connected to 2 wheels of homonymy, 4 universal wheels of base lower part fixed connection, and backplate upper portion has the step, and the backplate cover is outside at the base, step fixed connection base upper portion.

The utility model discloses a novel bed, including bed board, stopper rod, connecting rod, the backup pad has in the middle of the bed board, the bed board left and right sides respectively has 1 edge, every edge has the bed edge diaphragm in every edge outside, 5 risers of backup pad both sides equipartition respectively, every riser inboard has 1 riser axle, 5 guardrail axles of guardrail side equipartition, the stopper rod upside has a hole, the stopper rod downside has No. two holes, stopper rod upper portion has the locking mouth, the connecting rod upside has No. three holes, the connecting rod downside has No. four holes, right side guardrail axle rotates connects a hole, right side riser axle rotates connects No. two holes, all the other guardrail axles rotate respectively connects No. 1 hole No. three, all the other No. four holes rotate respectively and connect 1 riser axle.

The slider both sides respectively have 1 guiding axle, and the slider right side has the spring axle, has the slide hole in the middle of the slide, has the spring hole in the middle of the slide hole, and the slide both sides respectively have 1 guiding hole, have the shrouding hole in the middle of the shrouding, and slide front side fixed connection locking lever side, slider sliding connection locking mouth.

The sliding block is connected with the sliding seat hole in a sliding mode, the sliding block slides in the sliding seat hole, the guide hole is connected with the guide shaft in a sliding mode, the guide shaft slides in the guide hole, and the spring shaft penetrates through the spring hole and the sealing plate hole to be fixedly connected with the handle.

The spring is sleeved outside the spring shaft, one side of the spring abuts against the inner side of the sealing plate, and the other side of the spring abuts against the inner side of the sliding block.

Has the advantages that:

1. the handle of the invention is pulled, the slide block can retract into the slide seat hole, the handle is loosened, the slide block can extend out of the slide seat hole under the action of the spring, the guide hole limits the sliding range of the guide shaft, thereby limiting the extension of the slide block and preventing the slide block from falling off, the guardrail, the stop rod, the connecting rod and the vertical plate shaft are mutually connected to form a parallel connecting rod mechanism, the guardrail can be lifted and fallen in a direction parallel to the support plate, when the guardrail is lifted, the invention plays a role of protecting a patient and preventing the patient from falling down, when the guardrail falls down, the guardrail is horizontally arranged at two sides of the support plate, the patient can be conveniently moved to and from a bed, when in use, the handle is pulled, the slide block is pulled out of the stop opening, the guardrail is pulled, after the guardrail is pulled, the handle is loosened, the slide block is inserted into the stop opening and extends into the lower part of the guardrail, at the moment, the guardrail can not move under the action of the slide block, thereby playing a role of protecting the patient, the handle is pulled, the slide block is pulled out from the lower part of the guardrail, the guardrails can fall down to move the patient, and the bed edges at the two sides play a role in protection from the two sides, so that the patient can be prevented from sliding or falling in 4 directions.

2. When the invention is pushed to walk on a slope, the base can be inclined, the pendulum bob rotates around the base shaft under the action of gravity, the axis of the pendulum frame can always vertically face downwards, on the same principle, the bed plate mechanism generates unbalanced moment under the action of gravity to cause the bed plate mechanism to rotate in the guide arc, meanwhile, the guide arc can prevent the wheels from being separated from the base, and the pendulum bob automatically keeps a horizontal state, because the weight of the pendulum bob is larger, the force arm is larger, and larger rotating moment can be generated, when the pendulum bob rotates, the stop shaft can also push the wheels to rotate until the bed plate mechanism and the pendulum bob are balanced, when the pendulum bob is balanced, if the bed plate mechanism is unbalanced, the stop shafts on both sides can prevent the wheels from rotating, when the bed plate mechanism is prevented from being subjected to unbalanced force, the bed plate mechanism is prevented from overturning, namely, the stop shaft can push the bed plate mechanism to keep a horizontal state and can prevent the bed plate mechanism from rotating when being subjected to unbalanced force, therefore, the bed plate mechanism is always kept in a stable horizontal state, a certain distance is reserved between the lower part of the bed edge transverse plate and the upper part of the guard plate, the bed plate mechanism has a certain overturning space, the effect of preventing the bed plate mechanism from overturning excessively is achieved, and the bed plate mechanism can be prevented from being separated from the base.

3. The wheels roll in the guide arcs to limit the moving track of the bed frame relative to the base mechanism, so that the uncertainty of the displacement of the bed plate mechanism is reduced, the bed plate mechanism only swings in the axial direction of the base shaft, the resistance borne by the swing frame in the rotating process is reduced, meanwhile, the relative friction between the side surface of the bed frame and the guide arcs is reduced, the bed plate mechanism is accurately positioned relative to the base mechanism, the collision between the side surface of the bed plate mechanism and the base mechanism is reduced, and the stability of the bed plate mechanism is improved.

4. The diameter of the pendulum is equal to that of the pendulum arc, the pendulum and the pendulum arc are of a coaxial structure, the pendulum swings around the axis of the base shaft, so that the pendulum and the pendulum arc are tightly connected, the lower surface of the pendulum and the pendulum arc are in curved surface contact, the swinging track of the pendulum relative to the base is determined, the pendulum cannot deviate in the swinging process, the pendulum cannot shake in the swinging process, the pendulum cannot be clamped easily when sliding in the pendulum arc, the pendulum slides stably and smoothly in the pendulum arc, and the bed plate mechanism is favorably adjusted to be in a horizontal state.

5. The weight of the lower part of the swing frame is increased by the pendulum bob, the bed plate mechanism can be kept in a horizontal state by utilizing the inertia of the pendulum bob, and the bed plate mechanism can be restored to the horizontal state by utilizing the swinging of the pendulum bob when the bed plate mechanism is inclined relative to the horizontal plane. The pendulum bob downside curved surface is connected with the pendulum bob arc completely, utilizes the friction between pendulum bob and pendulum bob arc to increase the resistance that the pendulum bob swing in-process received, accelerates the pendulum frame when the pendulum bob does not take place to block and resumes the speed of vertical state, reduces simultaneously that the bed board mechanism rocks, has improved the stability of bed board mechanism.

6. When the patient moving bed is used, the patient moves on the bed, the handle is pulled, the guardrail is lifted, the handle is loosened, the guardrail is fixed on two sides, the bed plate mechanism can be pushed to be in a horizontal state automatically when passing through a slope or an inclined road surface, the patient cannot slide or fall down, the rescue instrument cannot shake, the stability of the patient in the transfer process is guaranteed, and the state of the patient is stabilized.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a critical patient transfer device according to the present invention.

Fig. 2 is a schematic diagram of the internal structure of a critical patient transfer device according to the present invention.

Fig. 3 is a schematic structural diagram of the positioning mechanism according to the present invention.

Fig. 4 is a schematic diagram of an explosion structure of the bed plate mechanism.

Fig. 5 is a schematic structural view of the bed plate mechanism of the present invention.

Fig. 6 is a schematic structural diagram of the bed frame mechanism according to the present invention.

Fig. 7 is a schematic structural diagram of the base mechanism according to the present invention.

Fig. 8 is a schematic view of a slider structure according to the present invention.

Fig. 9 is a schematic structural diagram of a slider according to the present invention.

Fig. 10 is a schematic cross-sectional view of the slider according to the present invention.

Fig. 11 is a schematic view of the structure of the bed plate of the present invention.

Fig. 12 is a schematic view of a bed frame according to the present invention.

Fig. 13 is a schematic view of a base structure according to the present invention.

Fig. 14 is a schematic view of the pendulum structure according to the present invention.

FIG. 15 is a schematic view of the guard plate structure according to the present invention.

Detailed Description

The invention is explained in more detail below with reference to the figures and examples:

a transfer device for critically ill patients comprises a positioning mechanism 100, a bed board mechanism 200, a bed frame mechanism 300, a base mechanism 400 and a guard plate 500, wherein the positioning mechanism 100 comprises a sliding block 110, a sliding seat 120, a sealing plate 130, a spring 140 and a handle 150, the bed board mechanism 200 comprises a positioning mechanism 100, a bed board 210, a guardrail 220, a stop rod 230 and a connecting rod 240, the bed frame mechanism 300 comprises a bed frame 310, a wheel shaft 320 and wheels 330, the base mechanism 400 comprises a base 410, a swinging frame 420, a base shaft 430 and universal wheels 440, 2 wheel shaft holes 311 are symmetrically arranged at the bottom of the bed frame 310, 1 wheel shaft 320 is fixedly connected inside each wheel shaft hole 311, two sides of each wheel shaft 320 are rotatably connected with 1 wheel 330, the lower part of the bed board 210 is fixedly connected with the upper part of the bed frame 310, two sides of the base 410 are respectively provided with 1 upright column 411, the upper parts of the 2 columns 411 are provided with coaxial base holes 412, the middle part of the base 410 is provided with a stop shaft 424, stop axis 424 both sides respectively have 1 fan anchor face 423 of symmetry setting, pendulum 420 upper portion has pendulum hole 421, pendulum 420 lower part has pendulum 422, pendulum 420 rear side has fan anchor face 423, fan anchor face 423 both sides respectively have 1 stop axis 424, base shaft 430 is connected to base hole 412, base shaft 430 middle rotation is connected pendulum hole 421, pendulum 420 rotates around base shaft 430, pendulum 422 slides in pendulum arc 414, 2 wheels 330 of homonymy connect the guide arc 413, 4 universal wheels 440 of base 410 lower part fixed connection, backplate 500 upper portion has step 501, backplate 500 cover is outside base 410, step 501 fixed connection base 410 upper portion.

The middle of the bed plate 210 is provided with a supporting plate 211, the left side and the right side of the bed plate 210 are respectively provided with 1 bed edge 214, the outer side of each bed edge 214 is provided with a bed edge transverse plate 215, the two sides of the supporting plate 211 are respectively and uniformly distributed with 5 vertical plates 212, the inner side of each vertical plate 212 is provided with 1 vertical plate shaft 213, the side surfaces of the guardrails 220 are respectively and uniformly distributed with 5 guardrail shafts 221, the upper side of the stop rod 230 is provided with a first hole 231, the lower side of the stop rod 230 is provided with a second hole 232, the upper part of the stop rod 230 is provided with a stop opening 233, the upper side of the connecting rod 240 is provided with a third hole 241, the lower side of the connecting rod 240 is provided with a fourth hole 242, the right guardrail shaft 221 is rotatably connected with the first hole 231, the right vertical plate shaft 213 is rotatably connected with the second hole 232, the rest guardrail shafts 221 are respectively rotatably connected with 1 third hole 241, and the rest four holes 242 are respectively rotatably connected with 1 vertical plate shaft 213.

The two sides of the sliding block 110 are respectively provided with 1 guide shaft 111, the right side of the sliding block 110 is provided with a spring shaft 112, the middle of the sliding seat 120 is provided with a sliding seat hole 121, the middle of the sliding seat hole 121 is provided with a spring hole 123, the two sides of the sliding seat 120 are respectively provided with 1 guide hole 122, the middle of the sealing plate 130 is provided with a sealing plate hole 131, the front side of the sliding seat 120 is fixedly connected with the side surface of the stop rod 230, and the sliding block 110 is slidably connected with the stop opening 233.

The sliding block 110 is slidably connected with the sliding seat hole 121, the sliding block 110 slides in the sliding seat hole 121, the guide hole 122 is slidably connected with the guide shaft 111, the guide shaft 111 slides in the guide hole 122, and the spring shaft 112 passes through the spring hole 123 and the closing plate hole 131 to be fixedly connected with the handle 150.

The spring 140 is sleeved outside the spring shaft 112, one side of the spring 140 abuts against the inner side of the closing plate 130, and the other side of the spring 140 abuts against the inner side of the slider 110.

The invention has the advantages that the handle 150 is pulled, the sliding block 110 can retract into the sliding seat hole 121, the handle 150 is loosened, the sliding block 110 can extend out of the sliding seat hole 121 under the action of the spring 140, the guide hole 122 limits the sliding range of the guide shaft 111, so as to limit the extension of the sliding block 110 and prevent the sliding block 110 from falling off, the guardrail 220, the stop rod 230, the connecting rod 240 and the vertical plate shaft 213 are mutually connected to form a parallel connecting rod mechanism, the guardrail 220 can be lifted and fallen down in a direction parallel to the supporting plate 211, when the guardrail 220 is lifted up, the patient is protected and prevented from falling down, when the guardrail 220 falls down, the guardrail is horizontally placed on two sides of the supporting plate 211, the patient can conveniently move up and down, when in use, the handle 150 is pulled, the sliding block 110 is pulled out of the stop opening 233 to pull up the guardrail 220, after the guardrail 220 is pulled up, the handle 150 is loosened, the sliding block 110 is inserted into the stop opening 233 and extends into the lower part of the guardrail 220, and the guardrail 220 can not move under the action of the sliding block 110, the handle 150 is pulled, the sliding block 110 is pulled out from the lower part of the guardrail 220, the guardrail 220 can fall down, the patient can be moved, and meanwhile, the bed edges 214 on the two sides play a protection role from the two sides, so that the patient can be prevented from sliding or falling in 4 directions.

When the invention is pushed to walk on a slope, the base 410 can be inclined, the pendulum bob 422 can rotate around the base shaft 430 under the action of gravity, the axis of the pendulum frame 420 can be always vertically downward, and under the same principle, the bed board mechanism 200 can generate unbalanced moment under the action of gravity, so that the bed board mechanism 300 can be rotated in the guide arc 413, and the guide arc 413 can also prevent the wheel 330 from being separated from the base 410, so that the bed board mechanism can automatically keep a horizontal state, because the pendulum bob 422 has larger mass and larger moment arm, so that larger rotating moment can be generated, when the pendulum bob 422 rotates, the stopping shaft 424 can also push the wheel 330 to rotate until the bed board mechanism 200 and the pendulum bob 422 are balanced, when the pendulum bob 422 is balanced, if the bed board mechanism 200 is unbalanced, the stopping shafts 424 on both sides can stop the wheel 330 from rotating, so as to prevent the bed board mechanism 200 from being overturned when unbalanced force is applied, namely, the stopping shaft 424 can push the bed board mechanism 200 to keep the horizontal state and also can stop the rotation when the bed board mechanism 200 from being unbalanced force, therefore, the bed board mechanism 200 is always kept in a stable horizontal state, a certain distance is reserved between the lower part of the bed edge transverse plate 215 and the upper part of the guard plate 500, the bed board mechanism 200 has a certain overturning space, the effect of preventing the bed board mechanism 200 from being overturned excessively is achieved, and the bed board mechanism 200 can be prevented from being separated from the base 410.

According to the invention, the wheels 330 roll in the guide arcs 413, so that the moving track of the bed frame 310 relative to the base mechanism 400 is limited, the uncertainty of the displacement of the bed plate mechanism 200 is reduced, the bed plate mechanism 200 only swings in the axial direction of the base shaft 430, the resistance borne by the swing frame 420 in the rotating process is reduced, meanwhile, the relative friction between the side surface of the bed frame 310 and the guide arcs 413 is reduced, the bed plate mechanism 200 is accurately positioned relative to the base mechanism 400, the collision between the side surface of the bed plate mechanism 200 and the base mechanism 400 is reduced, and the stability of the bed plate mechanism 200 is improved.

The outer diameter of the pendulum 422 is equal to the diameter of the pendulum arc 414, the pendulum 422 and the pendulum arc 414 are in a coaxial structure, the pendulum 422 swings around the base shaft 430, so that the pendulum 422 and the pendulum arc 414 are tightly connected, the lower surface of the pendulum 422 is in curved surface contact with the pendulum arc 414, the swing track of the pendulum 422 relative to the base 410 is determined, the pendulum 422 cannot deviate in the swing process, the pendulum 422 cannot shake in the swing process, the pendulum 422 cannot be easily clamped when sliding in the pendulum arc 414, the pendulum 422 slides stably and smoothly in the pendulum arc 414, and the bed plate mechanism 200 can be adjusted to be in a horizontal state.

The weight of the pendulum 422 of the present invention is added to the lower portion of the swing frame 420, and the weight 422 is able to keep the deck mechanism 200 in a horizontal state by the inertia thereof, and the deck mechanism 200 is able to return to the horizontal state by the swing of the pendulum 422 when the deck mechanism 200 is tilted with respect to the horizontal plane angle. The pendulum 422 lower side curved surface is connected with pendulum arc 414 completely, utilizes the friction between pendulum 422 and pendulum arc 414 to increase the resistance that pendulum 422 swings in-process receives, accelerates the speed that pendulum frame 420 resumes vertical state when pendulum 422 does not take place to block, reduces simultaneously that bed board mechanism 200 rocks, has improved bed board mechanism 200's stability.

When the medical bed is used, a patient moves on the medical bed, the handle 150 is pulled, the guardrail 220 is lifted, the handle 150 is loosened, the guardrail 220 is fixed on two sides, and the medical bed can be pushed.

A method of using a critical patient transfer device comprising the steps of:

firstly, a patient is moved on the bed plate mechanism 200, and the patient lies on the bed plate mechanism 200, so that the bed plate mechanism 200 and the patient are in a horizontal state when the bed plate mechanism is horizontally placed;

secondly, pulling the handle 150, lifting the guardrail 220, loosening the handle 150, clamping the handle 150 at the lower side of the guardrail 220, keeping the height of the guardrail 220 unchanged, fixing the guardrail 220 at two sides, and pushing the guardrail lifting device;

and thirdly, when the patient passes through a slope or an inclined road surface, the inertia bed board mechanism 200 can automatically keep a horizontal state, the patient cannot slide or fall down from the bed, the rescue instrument cannot shake, the stability of the patient in the transfer process is ensured, and the state of the patient is stabilized.

Claims

1. A transfer device for critically ill patients is characterized by comprising a positioning mechanism, a bed plate mechanism, a bed frame mechanism, a base mechanism and a protective plate, wherein the positioning mechanism comprises a sliding block, a sliding seat, a sealing plate, a spring and a handle, the bed plate mechanism comprises a bed plate, a guardrail, a stop rod and a connecting rod, the bed frame mechanism comprises a bed frame, a wheel shaft and wheels, the base mechanism comprises a base, a swing frame, a base shaft and universal wheels, 2 wheel shaft holes are symmetrically formed in the bottom of the bed frame, 1 wheel shaft is fixedly connected inside each wheel shaft hole, 1 wheel is rotatably connected to each wheel shaft at two sides, the lower portion of the bed plate is fixedly connected to the upper portion of the bed frame, 1 upright post is arranged on each of two sides of the base, coaxial base holes are formed in the upper portions of the 2 upright posts, the stop shaft is arranged in the middle of the base, 1 symmetrically-arranged fan ring surface is arranged on each stop shaft at two sides of the swing frame, a swing hammer hole is formed in the upper portion of the swing frame, a pendulum bob is arranged on the lower portion of the swing frame, the rear side of the swing frame is provided with a fan ring surface, two sides of the fan ring surface are respectively provided with 1 stop shaft, the base hole is connected with the base shaft, the middle of the base shaft is rotatably connected with the pendulum hole, the swing frame rotates around the base shaft, the pendulum bob slides in the pendulum bob arc, 2 wheels at the same side are connected with the guide arc, the lower part of the base is fixedly connected with 4 universal wheels, the upper part of the guard plate is provided with a step, the guard plate is sleeved outside the base, and the step is fixedly connected with the upper part of the base; the middle of the bed plate is provided with a supporting plate, the left side and the right side of the bed plate are respectively provided with 1 bed edge, the outer side of each bed edge is provided with a bed edge transverse plate, the two sides of the supporting plate are respectively and uniformly distributed with 5 vertical plates, the inner side of each vertical plate is provided with 1 vertical plate shaft, the side surface of each guardrail is uniformly distributed with 5 guardrail shafts, the upper side of a stop rod is provided with a first hole, the lower side of the stop rod is provided with a second hole, the upper part of the stop rod is provided with a stop port, the upper side of a connecting rod is provided with a third hole, the lower side of the connecting rod is provided with a fourth hole, the right guardrail shaft is rotatably connected with the first hole, the right vertical plate shaft is rotatably connected with the second hole, the rest guardrail shafts are respectively and rotatably connected with 1 third hole, and the rest four holes are respectively and rotatably connected with 1 vertical plate shaft; the two sides of the sliding block are respectively provided with 1 guide shaft, the right side of the sliding block is provided with a spring shaft, the middle of the sliding seat is provided with a sliding seat hole, the middle of the sliding seat hole is provided with a spring hole, the two sides of the sliding seat are respectively provided with 1 guide hole, the middle of the sealing plate is provided with a sealing plate hole, the front side of the sliding seat is fixedly connected with the side surface of the stop rod, and the sliding block is connected with a stop opening in a sliding manner; the sliding block is connected with the sliding seat hole in a sliding mode, the sliding block slides in the sliding seat hole, the guide hole is connected with the guide shaft in a sliding mode, the guide shaft slides in the guide hole, and the spring shaft penetrates through the spring hole and the sealing plate hole and is fixedly connected with the handle; the spring is sleeved outside the spring shaft, one side of the spring abuts against the inner side of the sealing plate, and the other side of the spring abuts against the inner side of the sliding block.

2. The method of using a critical patient transfer device of claim 1, comprising the steps of:

firstly, moving a patient on the transfer device for the critically ill patient, and enabling the patient to lie on a bed plate mechanism, so that the bed plate mechanism and the patient are in a horizontal state when the transfer device for the critically ill patient is horizontally placed;

secondly, pulling the handle, lifting the guardrail, loosening the handle, clamping the handle at the lower side of the guardrail to keep the height of the guardrail unchanged, fixing the guardrail at two sides, and pushing the severe patients transferring device;

and thirdly, when the patient passes through a slope or an inclined road surface, the inertial bed plate mechanism can automatically keep a horizontal state, the patient cannot slide or fall down from the bed, the rescue instrument cannot shake, the stability of the patient in the transfer process is ensured, and the illness state of the patient is stabilized.