Turning-over device for critical nursing
By designing a critical care turnover device with base support module, multi-dimensional turnover drive mechanism and intelligent control unit, the existing device has solved the problems of complex structure and poor stability, realizing multi-angle automatic turnover for patients, improving the accuracy and comfort of turnover, and meeting the high requirements of critical care.
Patent Information
- Application Number
- CN202510692342.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2025-08-12
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing critical care turnover devices have complex structures, poor stability, and insufficient fit for patients. They cannot selectively automate multi-angle turnovers, such as lying on their backs, lying on their side, lying on their backs, and sitting ups, which cannot meet the high requirements of critical care.
A critical care turnover device including a base support module, a multi-dimensional turnover drive mechanism, a patient fitting support assembly and an intelligent control unit is designed. The multi-dimensional turnover drive mechanism and an intelligent control unit are adopted to realize the horizontal folding when turning over 0-180° and the longitudinal folding when sitting up 0-90°. Combined with the design of the lifting rod, slide rail and connecting ball, it ensures the stability and comfort of the patient's posture conversion.
The patient's stable lateral folding during the 0-180° turnover process and longitudinal folding during the 0-90° sit-up process are achieved, which improves the accuracy and comfort of the turnover, meets the high requirements of critical care, and reduces the labor intensity of medical staff.
Smart Images
Figure FT_1 
Figure FT_2 
Figure FT_3
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of medical care equipment, and in particular to a critical care turning device. Background Art
[0002] During critical care, patients often need to be turned over regularly to prevent the occurrence of pressure sores due to their physical weakness or serious illness. Traditional turning methods mainly rely on manual operation by medical staff, which is not only labor-intensive but also difficult to ensure the accuracy of turning and the comfort of the patient. In addition, although some existing turning devices can achieve automatic turning, they have many shortcomings in structural design, such as complex structure, poor stability, insufficient fit for the patient, and the inability to selectively and automatically perform multi-angle turning, such as: supine, side-lying, supine, and sitting up, which cannot meet the high requirements of critical care. Therefore, a critical care turning device is proposed. Summary of the Invention
[0003] In order to solve the technical shortcomings of the existing critical care turning device, such as complex structure, poor stability, insufficient patient fit, and inability to selectively and automatically perform multi-angle turning, such as supine, side-lying, supine, and sitting up, which cannot meet the high requirements of critical care, the present invention provides a critical care turning device, including a base support module, a multi-dimensional turning drive mechanism, a patient fitting support component and an intelligent control unit, wherein the patient fitting support component is provided with at least one folding area in both the horizontal and vertical directions; one corner of the patient fitting support component is fixedly connected to the base support module through a side plate, and a multi-dimensional turning drive mechanism is provided between the remaining three corners of the patient fitting support component and the base support module; the intelligent control unit is installed on the side plate of the base support module, and the four bottom corners of the base support module are fixedly connected with universal wheels with brakes, and the slide rails of the multi-dimensional turning drive mechanism are provided with anti-derailment mechanisms (5).
[0004] Furthermore, the multi-dimensional turning drive mechanism includes: a lifting rod, a driving end of the lifting rod is fixedly connected with a reducer, the driving end of the reducer is provided with a driving motor, the top of the output end of the lifting rod is fixedly connected with a connecting ball, the top of the outer wall of the cylinder body of the lifting rod is fixedly connected with a locking mechanism, and the driving motor is electrically connected to the intelligent control unit.
[0005] Preferably, a slide groove is provided at the bottom of the lifting rod, and a slide rail is provided on the base support module along the direction of the patient's turning over of the support assembly. The slide groove and the slide rail are movably connected, and a connecting ball hole is fixedly connected to the corner of the lower surface of the patient's support assembly, and the connecting ball hole is rotatably connected to the connecting ball.
[0006] Preferably, the bottom of the lifting rod is fixedly connected to the base support module, and the corner of the lower surface of the patient fitting support component is fixedly connected to provide a slide rail along the turning direction of the patient fitting support component, and a slider is slidably connected on the slide rail. The outer end of the lower surface of the slider is fixedly connected to provide a connecting ball hole, and the connecting ball hole is rotatably connected to the connecting ball.
[0007] Preferably, a slide groove is provided at the bottom of the lifting rod, and a slide rail is provided on the base support module along the lateral turning direction of the patient fitting support component. The slide groove is movably connected to the slide rail, and the corner of the lower surface of the patient fitting support component is fixedly connected with a slide rail along the longitudinal turning direction of the patient fitting support component. A slider is slidably connected on the slide rail, and a connecting ball hole is fixedly connected to the outer end of the lower surface of the slider, and the connecting ball hole is rotatably connected to the connecting ball, and the two slide rails are vertically distributed.
[0008] Furthermore, the locking mechanism includes a fixing ring fixed to the top of the outer wall of the lifting rod cylinder, a vertical plate parallel to the output end of the lifting rod is fixedly connected to the fixing ring, a screw is threadedly connected to the middle of the vertical plate, a small motor is provided on the outer surface of the vertical plate through a slide rail parallel to the screw, the outer end of the screw is connected to the output end of the small motor, the inner end of the screw is movably connected to a locking plate, and the small motor is electrically connected to the intelligent control unit.
[0009] Furthermore, the patient fitting support assembly includes at least four support frames, adjacent support frames are movably connected, the surfaces of the support frames are evenly provided with pressure sensor arrays, and the corners of the lower surfaces of the support frames are welded to the slide rails or connecting ball holes.
[0010] Furthermore, the patient-fitting support component also includes a memory foam pressure-dividing mattress located above the pressure sensor array. The memory foam pressure-dividing mattress is provided with a variable stiffness partition structure, each partition is embedded with a shape memory alloy wire, and the driving circuit of the shape memory alloy wire is electrically connected to the central processing unit of the intelligent control unit.
[0011] Furthermore, several elastic restraint belts are fixedly connected on both sides of the patient-fitting support component, and the relative elastic restraint belts are connected by Japanese buckles. The elastic restraint belts are made of bidirectional stretch sensor fabric, and distributed micro-piezoelectric sensors are integrated on the surface of the restraint belts.
[0012] Furthermore, the posture adaptation algorithm of the intelligent control unit includes a pressure distribution prediction module based on a convolutional neural network. The pressure distribution prediction module establishes a data interface with the patient vital signs database of the hospital HIS system. The central processor of the intelligent control unit also has a built-in dynamic adjustment module, fuzzy PID module, overload protection module, safety redundancy module and emergency posture reset module. Beneficial effects
[0013] 1. Compared with the prior art, when performing a 0-180° turn, the two multi-dimensional turning drive mechanisms on the same side extend simultaneously, causing the patient fitting support component to be folded 0-180° horizontally. At this time, the patient lying on the patient fitting support component is converted from a lying position to a side-lying position. When performing a 0-90° sit-up, the two multi-dimensional turning drive mechanisms on the same end extend simultaneously, causing the patient fitting support component to be folded 0-90° longitudinally. At this time, the patient lying on the patient fitting support component is converted from a lying position to a sit-up position. The intelligent control unit performs intelligent control, and the universal wheels with brakes facilitate overall movement.
[0014] 2. When turning the patient from 0-90° (0° supine), 90° side-lying, and 180° prone), the multi-dimensional turning drive mechanism rotates the lower corners of the patient support assembly through the connecting ball holes and connecting balls to the lifting rods. At this time, the lifting rods remain in a vertical position, extending the output ends of the two lifting rods on the same side. This causes the corners of the patient support assembly supported by the lifting rods to move upward, causing the middle of the patient support assembly to fold horizontally, allowing the patient on the patient support assembly to transition from a supine position to a side-lying position. Simultaneously, the slideway slides adaptively on the rails.
[0015] 3. When sitting up, the angles are 0-90°, 0° lying flat, 90° sitting up, and the multi-dimensional turning drive mechanism is lifting and lowering. The corners of the lower surface of the patient support assembly are rotatably connected to the lifting rod through the connecting ball hole and the connecting ball. At this time, the lifting rod is always in a vertical state, so that the output ends of the two lifting rods at the same end are extended, so that the corners of the patient support assembly supported by the lifting rod move upward, and the middle part of the patient support assembly is folded longitudinally, so that the patient on the patient support assembly is converted from a lying position to a sitting position. At the same time, the slide slides adaptively on the slide rail.
[0016] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 Axonometric view of the entire invention Figure 1 .
[0018] Figure 2 Axonometric view of the entire invention Figure 2 .
[0019] Figure 3 It is an axonometric view of the multi-dimensional turning drive mechanism of the present invention.
[0020] Figure 4 It is an axonometric view of the elastic restraint belt of the present invention.
[0021] Figure 5 It is an axonometric view of the slider of the present invention.
[0022] Figure 6 It is an axonometric view of the locking mechanism of the present invention.
[0023] Figure 7 Schematic diagram of the intelligent control unit of the present invention.
[0024] Figure 8 It is a schematic diagram of the anti-derailment mechanism of the present invention.
[0025] exist Figures 1 to 8 The corresponding relationship between the component names or lines and the figure numbers is as follows: base support module 1, universal wheel with brake 101, multi-dimensional turning drive mechanism 2, lifting rod 201, reducer 202, drive motor 203, slide 204, connecting ball 205, locking mechanism 206, fixing ring 261, vertical plate 262, small motor 263, locking plate 264, slider 207, connecting ball hole 208, slide rail 209, patient fitting support component 3, pressure sensor array 301, support frame 302, expandable interface 321, memory foam pressure-dividing mattress 303, shape memory alloy wire 331, elastic constraint belt 304, Japanese-style buckle 341, distributed micro-piezoelectric sensor 342, intelligent control unit 4, central processing unit 401, pressure distribution prediction module 402, patient vital signs database 403, dynamic adjustment module 404, fuzzy PID module 405, overload protection module 406, safety redundancy module 407, emergency posture reset module 408, anti-derailment mechanism 5. DETAILED DESCRIPTION
[0026] Please refer to Figures 1 to 8 ; This embodiment provides a critical care turning device, referring to Figure 1 and Figure 2 , including a base support module 1, a multi-dimensional turning drive mechanism 2, a patient fitting support component 3 and an intelligent control unit 4. The patient fitting support component 3 is provided with at least one folding area in the horizontal and vertical directions; one corner of the patient fitting support component 3 is fixedly connected to the base support module 1 through a side panel, and a multi-dimensional turning drive mechanism 2 is provided between the remaining triangles of the patient fitting support component 3 and the base support module 1; the intelligent control unit 4 is installed on the side panel of the base support module 1, and the four corners of the bottom of the base support module 1 are fixedly connected with universal wheels 101 with brakes, and the slide rails 209 of the multi-dimensional turning drive mechanism 2 are provided with anti-derailment mechanisms 5.
[0027] Anti-derailment mechanism 5 reference Figure 8 , The anti-derail mechanism 5 is a baffle integrally connected to the end of the slide rail 209; The anti-derailment mechanism 5 is a through keyway and an anti-drop bolt; During specific implementation, when turning over 0-180°, the two multi-dimensional turning drive mechanisms 2 on the same side are extended at the same time, so that the patient fitting support component 3 is folded 0-180° horizontally. At this time, the patient lying on the patient fitting support component 3 is converted from a lying position to a side-lying position. When sitting up 0-90°, the two multi-dimensional turning drive mechanisms 2 on the same end are extended at the same time, so that the patient fitting support component 3 is folded 0-90° longitudinally. At this time, the patient lying on the patient fitting support component 3 is converted from a lying position to a sitting position. The intelligent control unit 4 performs intelligent control, and the universal wheel 101 with brakes facilitates overall movement.
[0028] Folding area: folding structures such as folding seams, hinges, and articulations.
[0029] 0°-90° sets a folding area; 90°-180° setting sets two folding areas in parallel in the same direction: For further reference, Figures 1 to 5 The multi-dimensional turning drive mechanism 2 includes: a lifting rod 201, a driving end of the lifting rod 201 is fixedly connected with a reducer 202, a driving end of the reducer 202 is provided with a driving motor 203, the top of the output end of the lifting rod 201 is fixedly connected with a connecting ball 205, the top of the outer wall of the cylinder body of the lifting rod 201 is fixedly connected with a locking mechanism 206, and the driving motor 203 is electrically connected to the intelligent control unit 4.
[0030] During specific implementation, when the multi-dimensional turning drive mechanism 2 is lifting, the drive motor 203 drives the reducer 202, the reducer 202 drives the lifting rod 201, and the output end of the lifting rod 201 extends to push the patient to fit the support component 3 for folding, so that the patient can turn over and do sit-ups on the support component 3.
[0031] Preferably, reference Figures 1 to 5 A slide groove 204 is provided at the bottom of the lifting rod 201, and a slide rail 209 is provided on the base support module 1 along the turning direction of the patient fitting support component 3. The slide groove 204 is movably connected to the slide rail 209, and a connecting ball hole 208 is fixedly connected to the corner of the lower surface of the patient fitting support component 3, and the connecting ball hole 208 is rotatably connected to the connecting ball 205.
[0032] The connection method between the connecting ball hole 208 and the connecting ball 205 can be replaced by a bearing and a shaft, and the rotation direction of the bearing is the turning direction.
[0033] 0°-90° sets a folding area; 90° side lying, The two multi-dimensional turning drive mechanisms 2 on the same side are extended to fold up half of the patient support component 3, so that the patient on the patient support component 3 changes from lying on his back to lying on his side.
[0034] 90°-180° setting sets two folding areas in parallel in the same direction: During specific implementation, when turning over 0-90°, 0° supine, 90° side lying, 180° prone, the multi-dimensional turning drive mechanism 2 is lifted and lowered, and the lower surface corner of the patient fitting support component 3 is rotatably connected to the lifting rod 201 through the connecting ball hole 208 and the connecting ball 205. At this time, the lifting rod 201 is always in a vertical state, so that the output ends of the two lifting rods 201 on the same side are extended, so that the corner of the patient fitting support component 3 supported by the lifting rod 201 moves upward, and the middle part of the patient fitting support component 3 is folded horizontally, so that the patient on the patient fitting support component 3 is converted from a lying position to a lying position, and at the same time, the slide groove 204 slides adaptively on the slide rail 209.
[0035] 0°-90° sets a folding area; The lifting rod 201 is fully extended to one half and the patient fitting support assembly 3 is lifted to a vertical state.
[0036] 90°-180° setting sets two folding areas in parallel in the same direction: The lifting rod 201 is fully extended to two-thirds and the patient fitting support assembly 3 is lifted to a vertical state.
[0037] The lifting rod 201 is gradually extended, and the patient support assembly 3 is slowly lifted up.
[0038] When sitting up, 0-90°, 0° lying flat, 90° sitting up, when the multi-dimensional turning drive mechanism 2 is lifting and lowering, the lower surface corner of the patient fitting support component 3 is rotatably connected to the lifting rod 201 through the connecting ball hole 208 and the connecting ball 205. At this time, the lifting rod 201 is always in a vertical state, so that the output ends of the two lifting rods 201 at the same end are extended, so that the corner of the patient fitting support component 3 supported by the lifting rod 201 moves upward, and the middle part of the patient fitting support component 3 is folded longitudinally, so that the patient on the patient fitting support component 3 is converted from a lying position to a sitting position. At the same time, the slide groove 204 slides adaptively on the slide rail 209.
[0039] Preferably, reference Figures 1 to 5 The bottom of the lifting rod 201 is fixedly connected to the base support module 1, and the corner of the lower surface of the patient fitting support component 3 is fixedly connected with a slide rail 209 along the turning direction of the patient fitting support component 3. A slider 207 is slidably connected on the slide rail 209, and the outer end of the lower surface of the slider 207 is fixedly connected with a connecting ball hole 208, and the connecting ball hole 208 is rotatably connected to the connecting ball 205.
[0040] The anti-derail mechanism 5 prevents the slider 207 from detaching from the slide rail 209 . A keyway is provided on the slider 207 , and an anti-derailment bolt is integrally connected to the slide rail 209 .
[0041] During specific implementation, when the multi-dimensional turning drive mechanism 2 is lifting, the bottom of the lifting rod 201 is fixedly connected to the base support module 1. At this time, the lifting rod 201 is always in a vertical state, so that the output ends of the two lifting rods 201 on the same side are extended, so that the corner of the patient-fitting support component 3 supported by the lifting rod 201 moves upward, and the middle part of the patient-fitting support component 3 is folded horizontally, so that the patient on the patient-fitting support component 3 is converted from a supine position to a side-lying position and then to a prone position. At the same time, the slide rail 209 slides adaptively inside the slide groove 204.
[0042] When the multi-dimensional turning drive mechanism 2 is lifting, the bottom of the lifting rod 201 is fixedly connected to the base support module 1. At this time, the lifting rod 201 is always in a vertical state, so that the output ends of the two lifting rods 201 at the same end are extended, so that the corner of the patient-fitting support component 3 supported by the lifting rod 201 moves upward, and the middle part of the patient-fitting support component 3 is folded longitudinally, so that the patient on the patient-fitting support component 3 is converted from a lying position to a sitting position and then to a sit-up position. At the same time, the slide rail 209 slides adaptively inside the slide groove 204.
[0043] Preferably, reference Figures 1 to 5 A slide groove 204 is provided at the bottom of the lifting rod 201, and a slide rail 209 is provided on the base support module 1 along the horizontal turning direction of the patient fitting support component 3. The slide groove 204 is movably connected to the slide rail 209, and the corner of the lower surface of the patient fitting support component 3 is fixedly connected with a slide rail 209 along the longitudinal turning direction of the patient fitting support component 3. A slider 207 is slidably connected to the slide rail 209, and the outer end of the lower surface of the slider 207 is fixedly connected with a connecting ball hole 208. The connecting ball hole 208 is rotatably connected to the connecting ball 205, and the two slide rails 209 are vertically distributed.
[0044] In a specific implementation, the two slide rails 209 are vertically distributed. When the lifting rod 201 is used in conjunction with the lifting rod 201 on the same side or the same end, the lifting rod 201 can only move adaptively in one direction.
[0045] The three structures of the multi-dimensional turning drive mechanism 2 can be implemented individually or in combination.
[0046] Supine → side lying → prone: 0-180°; Supine→Sit-up: 0-90°; The multi-dimensional turning-over drive mechanism 2 can be customized and combined according to the required functions to realize the side-lying function alone, the sitting-up function alone, the side-lying and prone-lying functions at the same time, and the side-lying, prone-lying and sitting-up functions at the same time.
[0047] For further reference, Figure 6 The locking mechanism 206 includes a fixing ring 261 fixed to the top of the outer wall of the cylinder body of the lifting rod 201. A vertical plate 262 parallel to the output end of the lifting rod 201 is fixedly connected to the fixing ring 261. The middle part of the vertical plate 262 is threadedly connected with a screw. The outer surface of the vertical plate 262 is provided with a small motor 263 through a slide rail parallel to the screw. The outer end of the screw is connected to the output end of the small motor 263, and the inner end of the screw is movably connected with a locking plate 264. The small motor 263 is electrically connected to the intelligent control unit 4.
[0048] In the specific implementation, when locking, the small motor 263 drives the screw to rotate, and the screw is generated close to the output end of the lifting rod 201, squeezing the locking plate 264 onto the outer wall of the output end of the lifting rod 201, locking the output end of the lifting rod 201, and at the same time the small motor 263 will adaptively move on the slide rail.
[0049] For further reference, Figure 1 and Figure 2 The patient fitting support assembly 3 includes at least four support frames 302, adjacent support frames 302 are movably connected, and the surface of the support frame 302 is evenly provided with a pressure sensor array 301, and the corners of the lower surface of the support frame 302 are welded to the slide rail 209 or the connecting ball hole 208.
[0050] In a specific implementation, the connection between adjacent support frames 302 is the folding area, and the turning over of the patient on the support frame 302 is controlled by controlling the height of the support frame 302 .
[0051] For further reference, Figure 2 The patient-fitting support component 3 also includes a memory foam pressure-dividing mattress 303 located above the pressure sensor array 301. The memory foam pressure-dividing mattress 303 is provided with a variable stiffness partition structure, each partition is embedded with a shape memory alloy wire 331, and the driving circuit of the shape memory alloy wire 331 is electrically connected to the central processor 401 of the intelligent control unit 4.
[0052] During specific implementation, regional pressure detection is performed through the pressure sensor array 301 to determine the patient's position. The memory foam pressure-dividing mattress 303 makes the patient more comfortable. When the shape memory alloy wire 331 controls the stiffness of the memory foam pressure-dividing mattress 303, the central processing unit 401 controls the driving circuit to energize the shape memory alloy wire 331, causing the shape memory alloy wire 331 to contract and tighten, thereby hardening the memory foam pressure-dividing mattress 303.
[0053] For further reference, Figure 4 A number of elastic restraint belts 304 are fixedly connected to both sides of the patient fitting support component 3. The relative elastic restraint belts 304 are connected by Japanese buckles 341. The elastic restraint belts 304 are made of biaxially stretched sensor fabric, and distributed micro-piezoelectric sensors 342 are integrated on the surface of the restraint belts.
[0054] In specific implementation, the patient's health status is monitored in real time through the distributed micro-piezoelectric sensor 342, and the patient is fixed on the patient fitting support component 3 through the elastic restraint belt 304.
[0055] For further reference, Figure 7 The posture adaptation algorithm of the intelligent control unit 4 includes a pressure distribution prediction module 402 based on a convolutional neural network. The pressure distribution prediction module 402 establishes a data interface with the patient vital signs database 403 of the hospital HIS system.
[0056] In specific implementations, when intelligent control is performed by intelligent control unit 4, the core of the posture adaptation algorithm is the convolutional neural network (CNN)-based pressure distribution prediction module 402. This module implements real-time analysis of the patient's body pressure distribution and optimizes the turning strategy through the following steps: The pressure sensor array 301 collects patient surface pressure distribution data at a 50Hz sampling frequency, generating a 256×256 resolution pressure thermogram. The hospital's HIS system's patient vital signs database 403 transmits patient characteristic parameters, including basic physiological data such as body mass index (BMI), in real time via the HL7 protocol. This allows for real-time prediction of the patient's condition and advance preparation for treatment.
[0057] For further reference, Figure 7 The central processor 401 of the intelligent control unit 4 also has a built-in dynamic adjustment module 404, a fuzzy PID module 405, an overload protection module 406, a safety redundancy module 407 and an emergency posture reset module 408.
[0058] In a specific implementation, the emergency posture reset module 408 is an emergency stop button. When the emergency posture reset module 408 is triggered, the device immediately runs the initialization setting; The safety redundancy module 407 is a protection setting, which sets the maximum extension distance of the lifting rod 201, that is, the number of rotations of the output end of the driving motor 203; and sets the extension distance of the locking plate 264, that is, the number of rotations of the output end of the small motor 263; The dynamic adjustment module 404 receives the distribution data of the pressure sensor array 301 in real time (sampling rate 100 Hz). When it detects that the pressure value of the patient's right hip exceeds the threshold (>32 mmHg), it immediately generates a stiffness adjustment instruction: the stiffness of the right hip area is increased to 85 Shore hardness HA through the shape memory alloy wire 331; the stiffness of the left rib area is reduced to 45 Shore hardness HA; and the response time is adjusted to <300 ms. The fuzzy PID module 405 synchronously controls the three drive motors 203: establishes an asymmetric motion equation: the right lift rod extends at a speed of 1.2 mm / s, and the left lift rod retracts at a speed of 0.8 mm / s ; Introduce the angle compensation factor θ = arctan (Δh / 450) to dynamically correct the transmission ratio of the reducer 202; monitor the motor torque fluctuation in real time and suppress the current ripple within the range of ±2%; During the rollover process, the overload protection module 406 continuously monitors the winding temperature of the drive motor 203 (sampling interval 50ms). When it detects that the temperature of the drive motor 203 reaches 85°C, it immediately activates the liquid cooling system of the drive motor 203 (flow rate 3L / min), reduces the output power to 60% of the rated value, triggers the sound and light alarm (frequency 2Hz, sound pressure level 65dB), drives the locking mechanism 206 to lock, and stops the operation of the drive motor 203.
Claims
1. A critical care turning device, comprising a base support module (1), a multi-dimensional turning drive mechanism (2), a patient fitting support component (3) and an intelligent control unit (4), characterized in that: The patient fitting support component (3) is provided with at least one folding area in both the transverse and longitudinal directions; one corner of the patient fitting support component (3) is fixedly connected to the base support module (1) via a side panel, and a multi-dimensional turning drive mechanism (2) is provided between the remaining three corners of the patient fitting support component (3) and the base support module (1); an intelligent control unit (4) is mounted on the side panel of the base support module (1); the four bottom corners of the base support module (1) are fixedly connected to universal wheels (101) with brakes, and an anti-derailment mechanism (5) is provided on the slide rails (209) of the multi-dimensional turning drive mechanism (2).
2. The critical care turning device according to claim 1, characterized in that: The multi-dimensional turning drive mechanism (2) comprises a lifting rod (201), a driving end of the lifting rod (201) fixedly connected to a reducer (202), a driving end of the reducer (202) provided with a driving motor (203), a top of the output end of the lifting rod (201) fixedly connected to a connecting ball (205), a top of the outer wall of the cylinder of the lifting rod (201) fixedly connected to a locking mechanism (206), and an electric signal connection between the driving motor (203) and the intelligent control unit (4).
3. The critical care turning device according to claim 2, characterized in that: A slide groove (204) is provided at the bottom of the lifting rod (201), and a slide rail (209) is provided on the base support module (1) along the turning direction of the patient fitting support component (3). The slide groove (204) and the slide rail (209) are movably connected. A connecting ball hole (208) is fixedly connected to the corner of the lower surface of the patient fitting support component (3), and the connecting ball hole (208) is rotatably connected to the connecting ball (205).
4. The critical care turning device according to claim 2, characterized in that: The bottom of the lifting rod (201) is fixedly connected to the base support module (1); a corner portion of the lower surface of the patient fitting support component (3) is fixedly connected to a slide rail (209) along the direction in which the patient fitting support component (3) turns over; a slider (207) is slidably connected to the slide rail (209); a connecting ball hole (208) is fixedly connected to the outer end of the lower surface of the slider (207); and the connecting ball hole (208) is rotatably connected to the connecting ball (205).
5. The critical care turning device according to claim 2, characterized in that: A slide groove (204) is provided at the bottom of the lifting rod (201), and a slide rail (209) is provided on the base support module (1) along the lateral turning direction of the patient fitting support component (3). The slide groove (204) is movably connected to the slide rail (209), and a slide rail (209) is fixedly connected to the corner of the lower surface of the patient fitting support component (3) along the longitudinal turning direction of the patient fitting support component (3). A slider (207) is slidably connected on the slide rail (209), and a connecting ball hole (208) is fixedly connected to the outer end of the lower surface of the slider (207). The connecting ball hole (208) is rotatably connected to the connecting ball (205), and the two slide rails (209) are vertically distributed.
6. A critical care turning device according to any one of claims 3, 4, and 5, characterized in that: The locking mechanism (206) includes a fixing ring (261) fixed to the top of the outer wall of the cylinder body of the lifting rod (201), a vertical plate (262) parallel to the output end of the lifting rod (201) is fixedly connected to the fixing ring (261), a screw is provided in the middle of the vertical plate (262), a small motor (263) is provided on the outer surface of the vertical plate (262) through a slide rail parallel to the screw, the outer end of the screw is connected to the output end of the small motor (263), the inner end of the screw is movably connected to a locking plate (264), and the small motor (263) is connected to the intelligent control unit (4) by electrical signals.
7. The critical care turning device according to claim 6, characterized in that: The patient fitting support assembly (3) comprises at least four support frames (302), adjacent support frames (302) are movably connected to each other, pressure sensor arrays (301) are evenly provided on the surface of the support frames (302), and the corners of the lower surfaces of the support frames (302) are welded to the slide rails (209) or the connecting ball holes (208).
8. The critical care turning device according to claim 7, characterized in that: The patient-fitting support assembly (3) further includes a memory foam pressure-dividing mattress (303) located above the pressure sensor array (301). The memory foam pressure-dividing mattress (303) is provided with a variable stiffness partition structure, each partition being embedded with a shape memory alloy wire (331). A drive circuit of the shape memory alloy wire (331) is electrically connected to a central processing unit (401) of the intelligent control unit (4).
9. The critical care turning device according to claim 8, characterized in that: A plurality of elastic restraint belts (304) are fixedly connected to both sides of the patient fitting support component (3), and the opposite elastic restraint belts (304) are connected by Japanese buckles (341). The elastic restraint belts (304) are made of biaxially stretched sensor fabric, and distributed micro-piezoelectric sensors (342) are integrated on the surface of the restraint belts.
10. The critical care turning device according to claim 9, characterized in that: The posture adaptive algorithm of the intelligent control unit (4) includes a pressure distribution prediction module (402) based on a convolutional neural network. The pressure distribution prediction module (402) establishes a data interface with a patient vital sign database (403) of a hospital HIS system. The central processor (401) of the intelligent control unit (4) also has a built-in dynamic adjustment module (404), a fuzzy PID module (405), an overload protection module (406), a safety redundancy module (407) and an emergency posture reset module (408).