CN115006142A

CN115006142A - Turning-over device

Info

Publication number: CN115006142A
Application number: CN202210664641.1A
Authority: CN
Inventors: 牛南南; 肖湘; 唐倩; 张慧梅
Original assignee: Chongqing Medical and Pharmaceutical College
Current assignee: Chongqing Medical and Pharmaceutical College
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-09-06

Abstract

The invention relates to the technical field of medical instruments, in particular to a turnover device, which comprises a bedstead, a mattress and a controller, wherein the mattress is provided with a plurality of regularly arranged through holes, strip-shaped air bags are arranged in the through holes, the stretching direction of the strip-shaped air bags is vertical to the upper surface of the mattress, the top parts of the strip-shaped air bags are provided with pressure sensing modules, and the bottom parts of the strip-shaped air bags are connected with an electric control air source assembly; the controller comprises the following modules: a pressure acquisition module: the pressure sensor is used for collecting pressure signals of all pressure sensing modules when a bedridden patient is on the mattress; an information processing module: the system is used for analyzing the pressure distribution position according to the pressure signal and constructing the body contour and the pressure distribution map of the contact part of the bedridden patient and the mattress; a turning-over auxiliary module: when a turning-over request signal is received, the strip-shaped air bag outside the body contour is controlled by the electric control air source assembly to keep a set height so as to limit the bedridden patient. The invention can facilitate nurses or family members to turn over the patient and reduce the labor intensity.

Description

Turning-over device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a turnover device.

Background

Pressure sores, also known as pressure injuries, pressure ulcers and bedsores, are the complications of patients who are not easy to move or can not move themselves due to the fact that local tissues are pressed for a long time and are subjected to continuous ischemia, hypoxia and malnutrition to cause tissue ulceration and necrosis. To reduce the chances of pressure sores in patients, relief is essentially provided by timed rolls, which are about once every two hours and require at least 2 nurses or family members to work together. And the difficulty and workload of turning over are different due to the different body types and weights of each person. And the frequent turnover frequency is added, so that the workload of nurses or family members is increased sharply, and the body is easy to eat and not disappear.

Disclosure of Invention

The invention aims to provide a turnover device which can facilitate a nurse or a family member to turn over a patient and reduce the labor intensity of the patient.

In order to achieve the aim, the turnover device comprises a bedstead, a mattress and a controller, wherein the mattress is provided with a plurality of regularly arranged through holes, strip-shaped air bags are arranged in the through holes, the stretching direction of the strip-shaped air bags is vertical to the upper surface of the mattress, the tops of the strip-shaped air bags are provided with pressure sensing modules, and the bottoms of the strip-shaped air bags are connected with an electric control air source assembly; the controller comprises the following modules:

a pressure acquisition module: the pressure sensor is used for collecting pressure signals of all the pressure sensing modules when a bedridden patient is on the mattress;

an information processing module: the system is used for analyzing the pressure distribution position according to the pressure signal and constructing the body contour and the pressure distribution map of the contact part of the bedridden patient and the mattress;

a turning-over auxiliary module: when the turning-over request signal is received, analyzing an appropriate point suitable for the bedridden patient to turn over according to the body contour and the pressure distribution diagram; the device is also used for controlling the strip-shaped air bags on two sides of the suitable point to form a gradient and be in a V shape by taking the suitable point as a boundary and using the electric control air source assembly; and the electronic control air source assembly is used for controlling the strip-shaped air bag outside the body contour to be kept at a set height to limit the bedridden patient if the body contour is turned over.

The principle and the advantages are as follows:

1. the mattress and the pressure sensing module are arranged, and the pressure of the contact part of the body of the bedridden patient and the bed can be detected in real time in a mode of using the pressure sensing module, so that whether the body of the bedridden patient can form pressure sores at the corresponding parts or not can be analyzed conveniently.

2. The setting of information processing module constructs the pressure distribution map of bed patient and sick bed contact department through the pressure signal and the distribution position that gather pressure sensing module to make things convenient for the analysis bed patient's health to form at which position and press the sore, make things convenient for the doctor nurse to look over the condition at patient's health pressurized position, whether make things convenient for the analysis bed patient should stand up and massage, also provide data support to the early warning of pressing the sore simultaneously.

3. The turning-over assisting module is arranged, when a turning-over request signal is received, a proper point suitable for a bedridden patient to turn over is analyzed according to the body contour and the pressure distribution diagram, for example, when the patient turns over left, the proper point is the left side surface of the body; when turning to the right, the right side of the body is the appropriate point. Then, by taking the suitable point as a boundary, the strip-shaped air bags on two sides of the suitable point are controlled by the electric control air source assembly to form a gradient and be in a V shape. When a patient lying in bed lies on the side from a flat position, the patient lying in bed can lie on the slope formed by the strip-shaped air bags, the body of the patient lying in bed and the horizontal bed surface form an acute angle, and family members or nurses can turn the patient lying in bed into the side from the acute angle by only slightly operating the bed members or the nurses, so that the operation is simple and labor-saving. When a patient lying on bed lies on one side, turns over the body to lie on one side, family members or nurses also only need to operate a little, the patient lying on the slope formed by the strip-shaped air bags can lie on the slope, the strip-shaped air bags provide support and limit to protect the patient lying on bed, the air bags are automatically deflated, the patient can lie on one side, excessive complicated force-applying operation is not needed, and the operation is simple and labor-saving. And after the patient turns over, the strip-shaped air bag outside the body contour is controlled by the electric control air source assembly to be kept to a set height to limit the body of the patient lying in bed, so that the body of the patient lying in bed is limited, and the patient lying in bed is prevented from turning over again after turning over.

Further, the controller further comprises the following modules:

the early warning monitoring module: and the turnover prompting device is used for monitoring and timing the pressure duration when the pressure signal is greater than or equal to the critical value, and prompting the turnover if the pressure duration exceeds the timing threshold of the monitoring and timing.

The setting of early warning monitoring module can accurately learn whether the pressure that bed patient and pressure acquisition element's contact site bore reaches the critical value, consequently can the pressurized condition on the different position surfaces of automated inspection patient's health, and whether nursing staff only need observe mark existence and pressurized time, can judge whether local skin on bed patient's health can develop into the position that easily sends out of pressure sore, whether need stand up the etc..

Further, the controller further comprises the following modules:

a body massage module: after the body turning prompt is carried out, whether the body turning is finished or not is judged according to the body contour and the pressure distribution diagram, if the body turning is not finished, the strip-shaped air bags which are positioned in the body contour and correspond to the pressure sensing modules with the pressure signals being more than or equal to the critical value are controlled by the electric control air source assembly to be fluctuated up and down; and the electric control air source assembly is also used for controlling the strip-shaped air bags in the body contour to randomly move up and down when receiving the massage request signal.

The body massage module can utilize the strip-shaped air bag to realize the massage effect by fluctuating up and down, thereby avoiding the formation of pressure sores.

Further, the controller further comprises the following modules:

a bed analysis module: the pressure sensor module is used for analyzing the position information of a person on the mattress according to the pressure signals of the pressure sensor modules;

the body position adjusting module: the system is used for analyzing the bed-lying state of a bed-lying patient according to the body contour and the pressure distribution diagram, wherein the bed-lying state comprises lying and side lying; the bed-ridden patient positioning device is also used for moving a bed-ridden patient to an adjusting point in the middle of the mattress according to the bed state, the bed position information and the proper point analysis of the turning over, controlling the proper point to move to the adjusting point through the electric control air source assembly, and controlling the strip-shaped air bags on the two sides of the proper point to be kept in a V shape synchronously.

The bed position analysis module and the body position adjusting module are arranged, the strip-shaped air bag is used for moving the bedridden patient to the middle of the mattress, and the bedridden patient is prevented from moving to the edge of the mattress after the patient turns over, so that the safety of the bedridden patient is not facilitated.

Furthermore, rotating rods are arranged on two sides of the bedstead, each rotating rod comprises a first rotating rod and a second rotating rod, a high-strength bed sheet is wound between the first rotating rod and the second rotating rod, and the first rotating rod and the second rotating rod are both connected with driving motors; the controller further comprises the following modules:

a synchronous adjustment module: and the driving motor is used for synchronously starting the first rotating roller or the second rotating roller according to the adjusting point.

The arrangement of the first rotating stick, the second rotating stick and the high-strength bed sheet can flatten the bed sheet, so that the bed sheet is cleaner and tidier. And the setting of synchronous adjustment module, accessible frictional force comes to provide the auxiliary force to turning over of bed patient to make to turn over more easily to bed patient, family members or nurse are light laborsaving.

Furthermore, a low-friction and breathable weaving layer is arranged on the contact surface of the high-strength bed sheet and the mattress.

The contact surface of the high-strength bed sheet and the mattress is provided with low friction, which is convenient for the movement of the bed sheet.

Further, the electronic control air source assembly comprises an electromagnetic valve connected to the bottom of the strip-shaped air bag, and the electromagnetic valve is connected to an air source.

Is convenient for automatic control, has higher automation degree, and saves more labor for the turn-over of the bedridden patient.

Furthermore, a return spring for accommodating the strip-shaped air bag in the through hole is arranged in the strip-shaped air bag.

The strip-shaped air bags are convenient to store, so that the mattress is more smooth and tidy when not used.

Drawings

Fig. 1 is a logic block diagram of a controller implementing functions in a turning-over device according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a bedridden patient lying down on a mattress;

FIG. 3 is a schematic view showing the structure of a strip-shaped air bag on a mattress of the bedridden patient in FIG. 2 when the patient turns over;

FIG. 4 is a schematic structural diagram of a strip-shaped air bag on a mattress of the bedridden patient in FIG. 3 at the end of turning over;

FIG. 5 is a schematic view of the structure of the strip-shaped air cells on the mattress of FIG. 3 after adjustment by the body position adjustment module;

fig. 6 is a schematic structural diagram of the strip-shaped air bags on the mattress of the bedridden patient in fig. 5 at the end of turning over.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the bed comprises a mattress 1, a first rotating stick 2, a bed frame 3, a bedridden patient 4, a suitable point 5, a high-strength bed sheet 6, a strip-shaped air bag 7 and a second rotating stick 8.

Examples

A turn-over device substantially as shown in figures 1 to 6 of the accompanying drawings: comprises a bed frame 3, a mattress 1 and a controller. The mattress 1 is provided with a plurality of regularly arranged through holes, the through holes are internally provided with strip-shaped air bags 7, and the strip-shaped air bags 7 can be elastic air bags or non-elastic air bags. The flexible direction perpendicular to mattress 1 upper surface of

bar gasbag

7, 7 tops of bar gasbag are equipped with pressure sensing module, 7 bottoms of bar gasbag are connected with automatically controlled air supply subassembly, automatically controlled air supply subassembly is including connecting the solenoid valve in 7 bottoms of bar gasbag, the solenoid valve is connected to the air supply, and the air supply adopts high-pressure cylinder in this embodiment, is equipped with the muffler on the gas outlet of solenoid valve. In this embodiment, the strip-shaped airbag 7 is a non-elastic airbag, and is not excessively deformed when pressed, so that the support is more stable. And bar gasbag 7 is inside to be equipped with the reset spring who accomodates it in the through-hole, and one end is connected at the tip that is close to pressure sensing module, and the other end is connected in mattress through-hole bottom, and bar gasbag 7 is aerifyd, and reset spring just is in tensile state, and during the gassing, usable reset spring's restoring force is deflated together.

In this embodiment, the pressure sensing module adopts an existing film type pressure sensor, and the film type pressure sensor is adhered to the top of the strip-shaped air bag 7. The film type pressure sensor adopts a flat-plate capacitance pressure sensor, and the flat-plate capacitance pressure sensor adopts a three-layer structure design: surface layer, intermediate layer and bottom layer. The surface layer is coupled with a driving electrode, the bottom layer is coupled with an induction electrode, and the middle layer is made of a super-elastic plastic material. When the surface layer of the sensor is stressed, the elastic plastic material of the middle layer is strained, so that the distance and the area between the driving electrode and the sensing electrode are changed, and the purpose of detecting the magnitude of the loaded pressure is achieved according to the change of the output capacitance.

The bed frame is characterized in that rotating sticks are arranged on two sides of the bed frame 3 and comprise a first rotating stick 2 and a second rotating stick 8, a high-strength bed sheet 6 is wound between the first rotating stick 2 and the second rotating stick 8, and a low-friction and breathable woven layer is arranged on the contact surface of the high-strength bed sheet 6 and the mattress 1. The first rotating roller 2 and the second rotating roller 8 are both connected with driving motors which are a first driving motor and a second driving motor respectively; the electromagnetic valve, the pressure sensing module, the first driving motor and the second driving motor are electrically connected with the controller, the controller adopts an existing single chip microcomputer, and meanwhile, the controller is also electrically connected with a touch display screen so as to display pressure data, input related operations, requests and the like.

The controller specifically comprises the following modules in a software level:

a pressure acquisition module: the pressure sensor is used for collecting pressure signals of all pressure sensing modules when the bedridden patient 4 is on the mattress 1;

an information processing module: the system is used for analyzing the pressure distribution position according to the pressure signal and constructing the body contour and the pressure distribution diagram of the contact part of the bedridden patient 4 and the mattress 1; the body contour and pressure profile may be fed back to the touch screen display.

A turning-over auxiliary module: a right point 5 (right side) for analyzing a suitable point for the bedridden patient 4 to turn over according to the body contour and the pressure distribution map when receiving a turn-over request signal of the touch display screen, as shown in fig. 2, wherein, for example, for easy understanding and display, the ellipse is a vertical section plane of the bedridden patient, and the upper half part with section lines is the body front of the bedridden patient; the device is also used for controlling the strip-shaped air bags 7 at two sides of the suitable point 5 to form a gradient and be in a V shape by taking the suitable point 5 as a boundary through the electric control air source assembly, as shown in figures 2 and 3; the device is also used for obtaining the body contour and the pressure distribution map again through the information processing module, and judging whether the patient is turned over according to the body contour and the pressure distribution map, as shown in fig. 2 and 4, the patient 4 lying on bed before the patient is turned over is in a lying state, the patient 4 lying on bed after the patient is turned over is in a lying state, the body contour in the body contour and the pressure distribution map is changed, the relevant pressure signal value is also changed, and whether the patient is turned over is judged according to the change of the body contour and the change of the pressure signal value. If the patient turns over, the strip-shaped air bag 7 outside the body contour is controlled by the electric control air source assembly to be kept to the set height to limit the bedridden patient 4, as shown in fig. 4. The same principle is applied when the patient lies on one side, when the strip-shaped air bags 7 form gradient and are in V-shape, the patient 4 needs to be manually turned over on the strip-shaped air bags on one side, and the patient can be limited or not when lying on the back.

The early warning monitoring module: and the turnover prompting device is used for monitoring and timing the pressure duration when the pressure signal is greater than or equal to the critical value, and prompting the turnover if the pressure duration exceeds the timing threshold of the monitoring and timing. In this embodiment, the critical value of the pressure is 32mmHg, the timing threshold is 0.5-2 hours, and in this embodiment, is specifically 1.5 hours. And meanwhile, the monitoring result can be fed back to the touch display screen.

A body massage module: after the body turning prompt is carried out, whether the body turning is finished or not is judged according to the body contour and the pressure distribution diagram, if the body turning is not finished, the strip-shaped air bags 7 which are positioned in the body contour and correspond to the pressure sensing modules with the pressure signals being more than or equal to the critical value are controlled by the electric control air source assembly to rise and fall; and the electric control air source component is also used for controlling the strip-shaped air bags 7 in the body contour to randomly move up and down when receiving the massage request signal.

A bed analysis module: the bed position information on the mattress 1 is analyzed according to the pressure signals of the pressure sensing modules; the bed information mainly comprises the size information of the bed surface and the position information of the two sides of the body side of the patient 4 in bed from the edge of the mattress 1. For example, the position information when the left side of the body is distant from the left edge of the mattress 1, and the position information when the right side of the body is distant from the right edge of the mattress 1. Simply speaking, the patient 4 who lies in bed is judged to turn over to which side most safely intelligently, and the risk of turning over and getting out of bed is avoided.

The body position adjusting module: the system is used for analyzing the bedridden state of a bedridden patient 4 before or after the completion of the turning over according to the body contour and the pressure distribution diagram, wherein the bedridden state comprises lying and side lying; the bed-ridden patient moving device is also used for moving a bed-ridden patient 4 to an adjusting point (such as the middle line position of a bed frame 3) in the middle of a mattress 1 according to analysis of a bed state, bed position information and a suitable point 5 for turning over, controlling the suitable point 5 (the lowest point of a V-shaped strip-shaped air bag 7) to move to the adjusting point (the middle line position of the bed frame 3) through an electric control air source assembly, and controlling the strip-shaped air bags 7 on two sides of the suitable point 5 to be synchronously kept in a V shape as shown in figures 3, 5 and 6. In the embodiment, before the patient turns over and needs to turn over to lie on side during lying, the patient 4 in bed is moved to the adjusting point in the middle of the mattress 1 according to the position information and the analysis of the suitable point 5 for turning over, the suitable point 5 is controlled by the electric control air source assembly to move to the adjusting point, and the strip-shaped air bags 7 on the two sides of the suitable point 5 are controlled to be kept in a V shape synchronously. Similarly, if the patient needs to turn over to lie on the side, the patient 4 in bed is moved to the adjusting point in the middle of the mattress 1 according to the position information and the analysis of the appropriate point 5 for turning over, the appropriate point 5 is controlled by the electric control air source assembly to move to the adjusting point, and the strip-shaped air bags 7 on the two sides of the appropriate point 5 are controlled to be kept in a V shape synchronously.

A synchronous adjustment module: a drive motor for synchronously starting the first rotary roller 2 or the second rotary roller 8 according to the adjusting point. Turning from fig. 3 to fig. 5, only the first rotatable rod 2 is activated, pulling and winding the sheet 6 to the left. So that the friction force of the bedridden patient and the high-strength bed sheet 6 is cooperated with the driving force of the V-shaped strip-shaped air bag 7 to drive the bedridden patient to move to the left side. Thereby completing the body position adjustment of the bedridden patient and ensuring that the body of the bedridden patient is positioned at the center of the mattress 1.

The specific implementation process is as follows:

the pressure sore prone position of a bedridden patient is mostly located at a bony prominence without muscle coating or with a thin muscle layer, lack of fat tissue protection and frequent pressure. For example, the supine position: it is easy to occur in the tuberosity of occipital bone, scapular region, elbow, carina, sacral tail and heel. Lateral position: it is easy to occur in ears, acromions, elbows, ribs, hips, medial and lateral sides of knee joints, and medial and lateral ankles. These parts are the high-incidence parts of pressure sores, need to be monitored intensively, and need to be turned over or massaged after the time comes.

The pressure distribution diagram of the contact position of the bedridden patient 4 and the sickbed is constructed by the pressure signal and the distribution position acquired by the pressure sensing module, so that the body of the bedridden patient can form pressure sores at which positions conveniently to be analyzed, doctors, nurses and family members can conveniently check the back condition of the patient, and whether the bedridden patient needs to turn over for massage or not is conveniently analyzed.

When the control module monitors that the pressure signal is greater than or equal to the critical value and the duration time exceeds the monitoring timing, the touch display screen is used for prompting, and meanwhile, voice alarm prompting can be accompanied. After the body turning prompt is carried out, on one hand, the body massage module can utilize the strip-shaped air bag 7 to realize the massage effect by up-and-down fluctuation, thereby avoiding the formation of pressure sores. On the other hand, when the bedridden patient 4, the family member of the patient or the nursing staff receives the prompt, the user can press down the touch display screen to perform relevant turning operation, such as inputting a turning request signal.

When the turning-over assisting module receives the turning-over request signal, as shown in fig. 2, the suitable point 5 suitable for the bedridden patient 4 to turn over is analyzed according to the body contour and the pressure distribution diagram (at this time, the bedridden patient 4 lies in the middle of the mattress 1, and the patient is to turn over to the side), for example, when turning left, the suitable point 5 is the left side of the body; when turning to the right, the suitable point 5 is the right side of the body, which is the right side of the body in this embodiment. Then, the strip-shaped air bags 7 at two sides of the suitable point 5 are controlled to be inflated by taking the suitable point 5 as a boundary through the electric control air source assembly, so that gradient and V-shaped are formed. At the moment, as shown in fig. 3, the bedridden patient 4 can lie on the slope formed by the strip-shaped air bags 7, the body and the bed surface of the bedridden patient 4 are acute angles, the family members or nurses can turn over the bedridden patient 4 to lie on the side only by slightly operating the bed members or nurses, the body is divided into right angles from the acute angles, and the operation is simple and labor-saving. The situation that the wrist of an operator is pressed and injured due to overexertion or overweight of a patient 4 lying in bed in the existing pure manual operation cannot occur, particularly the situation that the operator or an old person is caused.

Then, the strip-shaped air bags 7 at the two sides of the appropriate point 5 are controlled by the electric control air source assembly to be inflated and deflated, as shown in fig. 4, so that the air bags 7 can limit the bedridden patient 4.

When the turning-over request signal is: when the patient 4 lies on the side, the patient turns over, the strip-shaped air bags 7 on the two sides of the suitable point 5 are controlled by the electric control air source assembly to inflate and deflate, and the limit function is cancelled. The family members or the nurses also need only to slightly operate (push or pull one side of the bedridden patient 4) to let the bedridden patient 4 lie on the slope composed of the strip-shaped air bags 7, namely, the state is changed from the state shown in fig. 4 to the state shown in fig. 3. At the moment, the strip-shaped air bag 7 provides support and limit to protect the patient 4 lying in bed, and then the air bag is automatically deflated to lie flat without excessive complicated and forceful operation, so that the bed is simple and labor-saving. And after the turning over is finished, the strip-shaped air bag 7 outside the body contour is controlled by the electric control air source assembly to be kept to the set height to limit the bedridden patient 4, so that the limitation of the body of the bedridden patient 4 is finished, and the bedridden patient 4 is prevented from turning back after the turning over.

The body position adjusting module can move the bedridden patient 4 to an adjusting point in the middle of the mattress 1 according to the analysis of the bedridden state, the bed position information and the proper point 5 for turning over, and controls the proper point 5 to move to the adjusting point through the electric control air source assembly, and controls the strip-shaped air bags 7 on two sides of the proper point 5 to be kept in a V shape synchronously. Namely, the state of the mattress is changed from the state shown in figure 4 to the state shown in figure 6, the bedridden patient 4 is moved to the middle of the mattress 1 by the strip-shaped air bag 7, the bedridden patient 4 is prevented from being moved to the edge of the mattress 1 after turning over, and therefore the safety of the bedridden patient 4 is guaranteed.

The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is described herein in more detail, so that a person of ordinary skill in the art can understand all the prior art in the field and have the ability to apply routine experimentation before the present date, after knowing that all the common general knowledge in the field of the invention before the application date or the priority date of the invention, and the person of ordinary skill in the art can, in light of the teaching provided herein, combine his or her own abilities to complete and implement the present invention, and some typical known structures or known methods should not become an obstacle to the implementation of the present invention. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a turnover device, includes bedstead and mattress, its characterized in that: the mattress is provided with a plurality of regularly arranged through holes, strip-shaped air bags are arranged in the through holes, the stretching direction of the strip-shaped air bags is perpendicular to the upper surface of the mattress, the tops of the strip-shaped air bags are provided with pressure sensing modules, and the bottoms of the strip-shaped air bags are connected with an electric control air source assembly; the controller comprises the following modules:

a pressure acquisition module: the pressure sensor is used for collecting pressure signals of all pressure sensing modules when a bedridden patient is on the mattress;

a turning-over auxiliary module: when the turning-over request signal is received, the suitable point suitable for the bedridden patient to turn over is analyzed according to the body contour and the pressure distribution diagram; the device is also used for controlling the strip-shaped air bags on two sides of the suitable point to form a gradient and be in a V shape by taking the suitable point as a boundary and using the electric control air source assembly; and the electronic control air source assembly is used for controlling the strip-shaped air bag outside the body contour to be kept at a set height to limit the bedridden patient if the body contour is turned over.

2. A turn-over device as claimed in claim 1, wherein: the controller further comprises the following modules:

3. A turn-over device as claimed in claim 2, wherein: the controller further comprises the following modules:

4. A turn-over device as claimed in claim 1, wherein: the controller further comprises the following modules:

a bed analysis module: the position information of the person on the mattress is analyzed according to the pressure signals of the pressure sensing modules;

5. A turning-over device according to claim 4, wherein: rotating rods are arranged on two sides of the bedstead and comprise a first rotating rod and a second rotating rod, a high-strength bed sheet is wound between the first rotating rod and the second rotating rod, and the first rotating rod and the second rotating rod are both connected with driving motors; the controller further comprises the following modules:

6. A turning-over device according to claim 5, wherein: the contact surface of the high-strength bed sheet and the mattress is provided with a low-friction and breathable weaving layer.

7. A turn-over device as claimed in claim 1, wherein: the electric control air source assembly comprises an electromagnetic valve connected to the bottom of the strip-shaped air bag, and the electromagnetic valve is connected to an air source.

8. A turn-over device as claimed in claim 1, wherein: and a return spring for accommodating the strip-shaped air bag in the through hole is arranged in the strip-shaped air bag.