CN110151438B

CN110151438B - Medical bed and method for transferring patient by means of medical bed

Info

Publication number: CN110151438B
Application number: CN201910540786.9A
Authority: CN
Inventors: 高传宝
Original assignee: Xiamen Baoxin Medical Technology Co ltd
Current assignee: Hubei Yizhi Technology Co ltd
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2024-05-17
Anticipated expiration: 2039-06-21
Also published as: CN110151438A

Abstract

The present invention relates to a medical bed and a method for transferring a patient by means of the medical bed, the medical bed comprising a liftable support frame, a bed board and a conveyor belt assembly, one of the two sides of the bed board is called a working side, and the other side is called a non-working side, the bed board is supported on the liftable support frame, the liftable support frame is equipped with a liftable mechanism on one side of the non-working side, the liftable mechanism is used to tilt the non-working side of the bed board downward, the bed board is equipped with a belt anti-pressure plate parallel to and spaced from the working side at the bottom of one side of the working side, the conveyor belt assembly is installed on the bed board and comprises at least one belt conveyor unit, the belt of the belt conveyor unit passes through the gap between the belt anti-pressure plate and the bed board, surrounds the bed board and can move laterally relative to the bed board. The present invention has a simple structure and is easy to use, greatly reducing the labor intensity of medical staff and the discomfort of patients.

Description

Medical bed and method for transferring patient by means of medical bed

Technical Field

The invention relates to the field of medical equipment, in particular to a hospital bed and a method for transferring patients by means of the hospital bed.

Background

At present, emergency patients are generally sent to a hospital emergency center for treatment through a medical stretcher through an emergency ambulance, a slide way matched with the medical stretcher is often arranged on a bed body of the medical bed, and universal wheels are arranged on bed legs, so that the emergency patients can be conveniently and rapidly received and transferred into an emergency room for rescue; or the lifting mechanism of the lathe bed is further arranged, so that the height can be conveniently adjusted according to the situation, and smooth bearing is realized.

The traditional medical care bed can achieve the purpose of quickly receiving and transferring emergency patients. However, when a patient needs to be transferred from the medical bed to the operation bed for further operation and rescue or needs to be transferred from the operation bed to the medical bed and then to the sickbed of a ward, the operation is generally completed by matching a plurality of medical staff, so that further injury is possibly brought to the patient, particularly to the patient with injured key parts such as cervical vertebra, lumbar vertebra and the like, on the other hand, the labor intensity of the medical staff is high, and the patient is easy to fatigue, thereby affecting the working efficiency.

Chinese patent CN1903154B discloses a medical patient transferring cart, which has a cart body with a lifting mechanism and universal casters, and a moving plate mechanism mounted on the cart body and capable of moving transversely under the drive of a driving mechanism, and is characterized in that the moving plate mechanism adopts a double-layer combined structure of an upper moving panel/upper moving cloth and a lower moving panel/lower moving cloth, and specifically comprises a cloth rolling shaft frame, a cloth rolling shaft, a terminal connector body, a clutch gear, an upper moving panel/upper moving cloth, a lower moving panel/lower moving cloth, and other components. However, in the application, the moving plate extends out of the vehicle body to the sickbed, which has the problems that the operation is inconvenient because of the large requirement on the use space, and the moving plate and the sickbed have a height difference, so that patients feel uncomfortable in the transferring process; meanwhile, the structure is complex and the manufacturing cost is high.

Disclosure of Invention

The invention aims to provide a medical care bed and a method for transferring patients by the medical care bed so as to realize convenient transfer of patients between the medical care bed and a sickbed or an operation bed. For this purpose, the invention adopts the following specific technical scheme:

According to an aspect of the present invention, there is provided a medical care bed, which may include a liftable support frame, a bed plate, and a conveyor belt assembly, the bottom of the liftable support frame being provided with casters, the bed plate being supported on the liftable support frame and forming a U-shaped structure with the liftable support frame being open toward one side, the open side of the U-shaped structure being referred to as a working side, the other side being referred to as a non-working side, the liftable support frame being provided with a liftable mechanism on one side of the non-working side, the liftable mechanism being controlled by the electric cabinet for tilting the bed plate downward toward the working side, the bed plate being provided with a belt-prevention plate at a bottom of one side of the working side being spaced apart therefrom in parallel, the conveyor belt assembly being mounted on the bed plate and including at least one belt-conveying unit, a belt of the belt-conveying unit being wrapped around the bed plate through a gap between the belt-prevention plate and the bed plate and being laterally movable with respect to the bed plate.

In an embodiment, the electric cabinet is mounted on the liftable support frame and used for controlling actions of the liftable support frame and the belt conveying unit.

In an embodiment, a driving wheel is further installed at the bottom of the lifting support frame, and the driving wheel is controlled by the electric cabinet and used for driving the medical care bed to walk.

In an embodiment, the drive wheel is mounted at the lower end of the liftable mechanism and/or one of the casters is a drive wheel.

In one embodiment, the drive wheel is a motorized roller.

In another embodiment, the drive wheel includes a motorized roller and a steering mechanism mounted on the end of the lift mechanism, the motorized roller being mounted on the steering mechanism.

In one embodiment, the liftable support frame comprises a base, two liftable support posts and two cross beams; the base consists of a longitudinal bracket and two transverse brackets, one end of each transverse bracket is arranged on the longitudinal bracket, and the bottom of the other end of each transverse bracket is provided with the corresponding caster; the bottom parts of the two ends of the longitudinal bracket are provided with the casters; the liftable support post is arranged on the longitudinal bracket; one end of the cross beam is fixedly arranged on the liftable support column so as to be lifted, and the other end of the cross beam is suspended; the bed board is supported on the cross beam.

In an embodiment, one end of the transverse bracket is sleeved on the longitudinal bracket, so that the transverse bracket can move along the longitudinal bracket, and the distance between the two transverse brackets is adjusted.

In one embodiment, the conveyor belt assembly includes three belt conveyor units disposed evenly spaced apart on the deck.

In one embodiment, a strap is mounted in a gap between the belt conveying units, and the strap has a thickness consistent with the thickness of the belt.

Preferably, the strap has a velcro construction to facilitate handling.

In one embodiment, first and second pressure sensors are mounted on the upper surface of the bed plate between the belt conveyor units, the first and second pressure sensors being used to determine whether the patient is positioned in the middle of the bed plate.

In an embodiment, a micro switch is installed between the belt anti-pressing plate and the bottom of the bed plate between the belt conveying units, and the micro switch is in signal connection with the electric cabinet. When the micro switch acts, the bed board is fully contacted with the sickbed, and the bed board can be stopped from descending at the moment.

In one embodiment, a coil spring is sleeved outside the micro switch. The coil spring plays a role of protecting the micro switch on one hand, and ensures that the bed board is contacted with the sickbed in place on the other hand.

In an embodiment, the belt conveying unit further comprises a press roller, and the press roller is installed at the bottom of the bed board near the non-working side and used for enabling the belt to cling to the bed board.

In an embodiment, an auxiliary support frame for supporting the bed board in an auxiliary manner is mounted on the transverse support frame, a rotatable support block is mounted at the top end of the auxiliary support frame, the top surface of the support block is an arc surface, and lifting of the auxiliary support frame is controlled by the electric cabinet. When the medical bed is not used, the auxiliary support frame is lifted to support the bed plate in an auxiliary way, so that the function of protecting the bed plate is achieved.

In one embodiment, the transverse bracket is provided with a rectangular opening, the lower end of the auxiliary supporting frame is rotatably arranged in the opening, the electric push rod is fixedly arranged in the opening, and the tail end of the push rod is hinged with the auxiliary supporting frame.

Preferably, the support block is a wheel-shaped support block.

In an embodiment, the bed board is slidably supported on the liftable supporting frame, the liftable supporting frame further comprises a longitudinal rod which is parallel to the longitudinal support and is positioned above the longitudinal support, two ends of the longitudinal rod are fixed on the liftable supporting column, a sliding driving mechanism is mounted on the longitudinal rod, and the tail end of the sliding driving mechanism is in driving connection with the bed board part between the belt conveying units. The structure ensures that the bed board can extend out of the supporting frame and can be overlapped on a sickbed.

In an embodiment, the bed board is in sliding connection with the cross beam through a sliding block, the sliding block comprises a sliding block fixing frame, an upper teflon sliding block and a lower teflon sliding block, the sliding block fixing frame is fixed on the bottom of the bed board, the upper teflon sliding block is fixed on the bottom of the bed board, the lower teflon sliding block is fixed on the sliding block fixing frame, and the cross beam is in sliding connection between the upper teflon sliding block and the lower teflon sliding block.

In one embodiment, the longitudinal support has an opening therethrough from top to bottom, the opening being for the passage of the lifting mechanism.

Preferably, the opening is a rectangular opening.

In one embodiment, the belt conveyor unit includes a motorized pulley mounted on the non-working side of the deck, a driven pulley mounted on the working side of the deck, and a belt looped around the motorized pulley and belt. This can simplify the structure and make the appearance more compact.

In one embodiment, the thickness of the bed deck is tapered from the non-working side to the working side. In one embodiment, the deck has a thickness of 3 cm on the non-working side and a thickness of 1.5 cm on the working side. Preferably, the bed plate is made of stainless steel.

In one embodiment, the upper surface of the bed plate is an inclined surface.

In an embodiment, the medical care bed is further provided with a first position sensor and a second position sensor which are connected with the electric cabinet in a signal mode, and the first position sensor and the second position sensor are respectively located on the working side and the non-working side. By means of the first position sensor it can be detected whether the bed board has been moved to the hospital bed, and by means of the second position sensor it can be detected whether the bed board has been substantially completely overlapped to the hospital bed.

Preferably, the first and second position sensors are infrared sensors.

In one embodiment, the first position sensor is mounted on the belt anti-roll plate and the second position sensor is mounted on a mounting bracket secured to the side rail.

In an embodiment, the medical care bed is further provided with a remote controller, and the remote controller is in signal connection with the electric cabinet. Through the remote controller, the operation of the medical care bed can be realized, and the operation is very convenient.

In an embodiment, the lifting support comprises an inner hollow support, an outer hollow support, an electric lifting rod and a motor, wherein the outer hollow support is fixedly installed on the base, the electric lifting rod is installed in the inner hollow support, the inner hollow support is movably sleeved in the outer hollow support and fixedly connected with the tail end of the electric lifting rod, the motor is installed on the base and is in driving connection with the electric lifting rod, and the cross beam is fixed on the top end of the inner hollow support.

In one embodiment, the cross beam has a guard plate mounted thereon.

In one embodiment, the hospital bed includes a removable guard rail removably mounted to the working and/or non-working side of the bed deck.

In one embodiment, a rechargeable battery is disposed in the electric cabinet, and the rechargeable battery is used for providing power. In this case, all motors in the hospital bed are dc motors.

According to another aspect of the present invention there is also provided a method of transferring a patient with the aid of a hospital bed, characterised in that there is provided a hospital bed comprising a bed deck and a belt mounted thereon for lateral movement, the method comprising the steps of: moving the medical bed to be parallel to a supporting surface where a patient is positioned, and defining one side of the medical bed, which is close to the supporting surface, as a working side and the other side, which is far away from the medical bed, as a non-working side; raising the bed plate of the medical bed beyond the support surface; continuously moving the nursing bed towards the supporting surface to a first position, wherein the working side of the nursing bed is just overlapped with the supporting surface; lowering the bed plate of the medical bed to be in contact with the supporting surface; raising the non-working side of the medical bed to incline the bed board of the medical bed by a certain angle; continuously moving the medical bed to a second position towards the supporting surface, wherein the working side of the bed plate of the medical bed is positioned in the middle of the supporting surface; moving the belt laterally to transfer the patient from the patient support to the support surface or from the support surface to the patient support; stopping the belt from moving transversely; lowering the non-working side of the medical bed to enable the bed board of the medical bed to be in a horizontal state; lifting the bed plate of the medical bed away from the supporting surface; the patient support is moved away from the support surface.

By adopting the technical scheme, the invention has the beneficial effects that the structure is simple, and when the nursing bed is used, the vehicle body can be pushed under the sickbed, so that the bed board and the sickbed are mostly overlapped, the use space can be greatly reduced, and related nursing operation is convenient to carry out in the transfer process. And the bed board is inclined through the lifting mechanism, so that no height difference exists between the bed board and the sickbed basically, and patients can not feel uncomfortable. Furthermore, through setting up the belt and prevent the clamp plate, can ensure that the belt can not be pressed by the sick bed and unable normal operating.

Drawings

FIG. 1 is a perspective view of a hospital bed according to an embodiment of the present invention;

FIG. 2 is another perspective view of the hospital bed shown in FIG. 1 with a portion of the housing of the electric cabinet removed;

FIG. 3 is a bottom view of the patient support shown in FIG. 2;

FIG. 4 is a cross-sectional view of the hospital bed taken along line A-A in FIG. 3;

FIG. 5 is a partially exploded perspective view of the hospital bed shown in FIG. 1;

FIG. 6 is a perspective view of the hospital bed shown in FIG. 1 with the auxiliary support frame raised;

FIG. 7 is an exploded view of the liftable support column of the hospital bed of FIG. 1;

Fig. 8 is a schematic view of a belt pressure guard of the patient support shown in fig. 2.

Detailed Description

For further illustration of the various embodiments, the invention is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present invention. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.

The invention will now be further described with reference to the drawings and detailed description.

As shown in fig. 1 to 8, a hospital bed may include a liftable support frame 1, a bed board 2, a conveyor belt assembly, and an electric cabinet 4. The liftable support frame 1 can comprise a base 11, two liftable struts 12 and two cross beams 13, wherein the base 11 is composed of a longitudinal support 111 and two transverse supports 112. The lateral bracket 112 is mounted at one end on the longitudinal bracket 111 and at the bottom of the other end with casters (e.g., universal wheels) 15. Preferably, the transverse support 112 is sleeved on the longitudinal support 111, i.e. the transverse support 112 is movable on the longitudinal support 111. Thus, the distance between the two lateral brackets 112 can be adjusted to accommodate different beds or beds (hereinafter, beds are described as examples). In the illustrated embodiment, the longitudinal support 111 and the two transverse supports 112 form a pi-shape. The longitudinal brackets 111 and the two lateral brackets 112 may be machined from a thick steel plate to ensure stability. Casters 15 are installed at bottoms of both ends of the longitudinal frame 111. In one embodiment, one of the casters 15 is a motorized roller (as shown in fig. 2 and 6) to facilitate control of the patient support for self-walking.

The liftable support posts 12 are fixedly mounted (e.g., by fasteners such as bolts) on the upper surfaces of both ends of the longitudinal support 111. One end of the cross beam 13 is fixedly mounted (for example, by a fastener such as a bolt) on the liftable support 12 so as to be liftable, and the other end is suspended. The bed plate 2 is supported on a cross beam 13 so that the height of the bed plate 2 can be adjusted by lifting the support column 12. Therefore, the bed board 2 and the base 11 adopted in the embodiment form a U-shaped structure, so that the base 11 can move under a sickbed, and the bed board 2 is superposed on the sickbed, so that the structure is simpler and more compact, and the operation of medical staff is facilitated. For convenience of description hereinafter, one side of the opening of the U-shaped structure is referred to as the working side, and the other side is referred to as the non-working side.

In general, the load-bearing requirement of the bed board 2 can be met by adopting the open U-shaped structure. But in a further development of this embodiment, the transverse brackets 112 are provided with auxiliary supporting brackets 8 (as shown in fig. 2 and 6) at the end near the working side for auxiliary supporting the bed board 2, in order to further increase the load-bearing capacity of the bed board 2. The auxiliary supporting frame 8 may include a supporting frame 81 and an electric push rod 82 in driving connection with the supporting frame 81, and the supporting frame 81 is driven by the electric push rod 82, so that the supporting portion at the upper end of the supporting frame 81 is in a supporting state for the bed board 2 or the supporting portion at the upper end of the supporting frame 81 is separated from the bed board 2. The auxiliary supporting frame 8 can adopt a vertical lifting structure or a folding lifting structure. This embodiment preferably employs a folding lifting structure to further reduce space occupation, so that a rotatable support block 83 is mounted on the top end of the support frame 81, and the top surface of the support block 83 is a cambered surface, for example, a wheel-shaped support block, to ensure that damage (e.g., scratch) is not caused to the bed board 2 or the belt 32 of the belt conveying unit 3. The action of the electric push rod 82 is controlled by the electric cabinet 4. When the medical care bed is in a bearing state (not in a transferring process) and is not in use, the supporting frame 81 is lifted, and the auxiliary supporting function of the bed board 2 is achieved.

The auxiliary support 8 is specifically installed in such a manner that the transverse support 112 is provided with a rectangular opening 1121, the lower end of the support 81 is rotatably installed in the opening 1121, the electric push rod 82 is fixedly installed in the opening 1121, and the end of the push rod is hinged with the support 81. The electric push rod 82 stretches out and draws back, drives the support frame 81 and rotates, realizes the folding of support frame 81 and lifts up and descend, and support frame 81 can be accomodate at rectangle opening 1121 owing to folding after descending to realize the purpose that reduces the space and occupy.

In this embodiment, the conveyor belt assembly is mounted on the bed deck 2 and comprises three belt conveyor units 3. The three belt conveying units 3 are uniformly arranged on the bed board at intervals. Of course, the number of belt conveying units 3 is not limited to the illustrated embodiment. A strap (not shown) is installed in a gap between the belt conveyor units 3, and the thickness of the strap is identical to that of the belt so that the bed surface is kept flat. Preferably, the strap has a velcro construction to facilitate handling. Of course the strap may be replaced by a cloth strip.

The bed plate 2 is provided with a belt pressure-preventing plate 6 (for example, by screws) at the bottom of the side facing the working side. A gap for the belt 32 to pass through is arranged between the belt pressure-proof plate 6 and the bed plate 2. The belt 32 of the belt conveying unit 3 passes through the gap between the belt pressure-preventing plate 6 and the bed plate 2, surrounds the bed plate 2 and can transversely move relative to the bed plate 2. Preferably, the upper surface of the portion of the bed plate at both ends where the belt 32 is not provided is covered with a mat having the same thickness as the belt 32 so as to avoid discomfort to the patient.

In this embodiment, the lifting mechanism 51 is mounted on the non-working side of the support frame 1, and the lifting mechanism 51 lifts the non-working side of the hospital bed, thereby tilting the bed plate 2. In the process of moving the medical bed to the sickbed, as the bed board 2 is obliquely arranged, the height difference between one side of the working side of the bed board 2 and the sickbed (or the operating table) is reduced, and meanwhile, the belt 32 is not contacted with the sickbed surface (or only in line contact), so that surface friction is avoided, and the conveying of the belt 32 is facilitated.

The electric cabinet 4 is mounted on the base 11 and is used for controlling actions of the lifting mechanism 51, the lifting support 12 and the belt conveying unit 3, respectively driving the bed board to incline, driving the height adjustment of the bed board and driving the belt 32 on the bed board to convey, so as to complete the transfer of patients between the medical care bed and the patient bed (or operating table).

In addition, a driving wheel 52 is also installed on the base 11, and the driving wheel 52 drives the whole support frame 1 (namely the whole hospital bed) to walk and move.

Since the walking movement of the hospital bed occurs during the non-transfer process, in this embodiment, the drive wheel 52 of this embodiment is mounted at the end of the lifting mechanism 51 (the end facing the ground) for further compression of the structure.

Thus, when the lifting mechanism 51 is retracted so that the drive wheel 52 is not in contact with the ground, the hospital bed can be manually moved by the casters 4; when the lifting mechanism 51 is ejected to enable the driving wheel 52 to descend to contact with the ground, the lifting mechanism can automatically move through the driving wheel 52 and the castor 4; when the lifting mechanism 51 is further ejected to enable the bed board 2 to be in an inclined state, the driving wheel 52 can drive the bed board 2 to be further inserted and overlapped on a sickbed.

In this embodiment, the driving wheel 52 is preferably attached to the end of the lifting mechanism 51, and in other embodiments, in the case where the driving wheel is individually attached to the base 11, a certain friction reducing mechanism, such as a pulley, may be attached to the end of the lifting mechanism 51 in order to move the lifting mechanism 51 in the lifted state by the driving wheel and also to drive the nursing bed of the inclined bed plate.

In this embodiment, in order to give way to the electric push rod 511 and the driving wheel 52 of the lifting mechanism 51, the middle of the longitudinal support 111 of the support frame 1 of this embodiment has an opening 1111 penetrating up and down, and the opening 1111 is used for the electric push rod 511 and the driving wheel 52 to penetrate. Preferably, opening 1111 is a rectangular opening.

In this embodiment, the driving wheel 52 is a motorized pulley. Of course, the driving wheel 52 can be replaced by other driving wheel structures composed of a motor, wheels and corresponding transmission mechanisms.

Specifically, the elevating mechanism 51 includes an electric push rod 511 and a roller mounting bracket 512, the electric push rod 5111 is mounted on the longitudinal brackets 111 on both sides of the opening, the roller mounting bracket 512 is in driving connection with the electric push rod 511, and the electric roller 52 is mounted on the roller mounting bracket 512.

In an embodiment (not shown), the driving wheel 52 may additionally comprise a steering mechanism mounted on the lifting mechanism 51, the driving wheel 52 being mounted on the steering mechanism. In this case, the driving wheel 52 is a motorized roller. Thus, the direction of the motorized roller is changed by the steering mechanism so that the hospital bed can move transversely or longitudinally.

In order to control the moving direction of the medical bed conveniently, the medical bed is also provided with an operating device 7. The handling device 7 can be mounted on the cross beam 13 or on the shield 14. Specifically, the operating device 7 includes operating levers located on both sides of the guard plate 14, and operating keys (for example, move or stop) may be provided on the operating levers.

As shown in fig. 5, the thickness of the bed plate 2 gradually decreases from the non-working side to the working side. Preferably, the upper surface of the bed plate 2 is an inclined surface. The structure can further reduce the height difference between the bed plate 2 and the sickbed under the condition of ensuring the sufficient strength of the bed plate, and is matched with the lifting mechanism 51 to drive the bed plate 2 to be obliquely arranged, so that the bed plate 2 is easier to be inserted into the lower part of the body of a patient. In one embodiment, the thickness of the bed deck 2 is 3 cm on the non-working side and 1.5 cm on the working side. Preferably, the bed plate 2 is made of stainless steel.

As shown in fig. 2 and 8, at least one micro switch 61 (two shown) is mounted on the upper surface of the belt pressure preventing plate 6. The micro switch 61 is located below the gap between the two belt conveying units. It should be understood that the micro switch 61 may also be mounted on the bed bottom between two belt conveyor units. In this case, the belt pressing plate 6 is movable with respect to the bed plate 2. The microswitch 61 is in signal connection with the electric cabinet 4. When the micro switch 61 is operated, the bed board 2 is fully contacted with the sickbed, and the bed board 2 is automatically stopped from descending at the moment, so that the motor 121 of the liftable support 12 is prevented from being damaged due to overload. In one embodiment, a coil spring (not shown) is further sleeved outside the microswitch 61. The coil spring plays a role of protecting the micro switch 61 on one hand and can ensure that the bed board 2 is contacted with a sickbed in place on the other hand.

Preferably, the vertical distance between the belt pressure-preventing plate 6 and the bed plate 2 is 1 to 2 cm. The belt anti-pressing plate 6 is retracted into the bed plate 2 by a distance of 2-5 cm. In this way, under the condition that the lifting mechanism 51 lifts the bed 5 plate 2 to incline by 5-10 degrees, the belt anti-pressing plate 6 can play an optimal supporting position, and the optimal supporting position ensures that the height difference between the working side of the bed plate 2 and a sickbed is low, and simultaneously ensures that the belt 32 on the bed plate 2 is not rubbed with the sickbed surface as much as possible to be smoothly conveyed.

Preferably, the belt pressing plate 6 is made of a stainless steel plate 3mm thick.

With continued reference to fig. 2 and 8, the medical care bed of the present embodiment is further provided with a first position sensor and a second position sensor which are in signal connection with the electric cabinet 4, and the first position sensor and the second position sensor are respectively located on the working side and the non-working side. Specifically, the first position sensor is mounted on the mounting hole 62 of the belt pressure prevention plate 6, and the second position sensor is mounted on the mounting bracket 161 fixed to the side rail 16. By means of the first position sensor it can be detected whether the bed plate is moved to the hospital bed or not, and by means of the second position sensor it can be detected whether the bed plate has been overlapped on the hospital bed or not. Preferably, the first and second position sensors are infrared sensors.

In addition, the medical care bed can be further provided with a remote controller (not shown), and the remote controller is in signal connection with the electric cabinet. Through the remote controller, the operation of the medical care bed can be realized, and the operation is very convenient.

As shown in fig. 1 and 5, the belt conveying unit 3 may include a driving device 31, a belt 32, and a driven roller 33. The driving device 31 is installed on the non-working side of the bed plate 2, the driven roller 33 is installed on the working side of the bed plate 2, and the belt 32 is wrapped between the electric roller and the driven roller 33. The drive means 31 typically consist of a motor and a drum. In the embodiment shown, the drive means 31 are motorized rollers. I.e. the motor and the decelerator are built into the drum. This can simplify the structure and make the appearance more compact. Furthermore, the belt conveyor unit 3 may also comprise a press roller 34, which press roller 34 is mounted on the bed bottom near the non-working side for bringing the belt 32 against the bed 2.

A first pressure sensor 21 and a second pressure sensor 22 are mounted on the upper surface of the bed plate between the belt conveyor units 3. The first pressure sensor 21 and the second pressure sensor 22 are used to determine whether the patient is located in the middle of the couch board. The spacing between the first pressure sensor 21 and the second pressure sensor 22 is approximately equal to the width of the patient's body.

As shown in fig. 2-5, the bed board 2 is slidably mounted on the support frame 1. Specifically, the two ends of the bed board 2 are respectively in sliding connection with the cross beams 13 through a sliding block 9. The slider 9 includes a slider mount 91, an upper teflon slider 92 and a lower teflon slider 93. The slider fixing frame 91 is fixed on the bottom of the bed board 2, and the slider fixing frame 91 has an L-shaped cross section. The upper teflon slide block 92 is fixed on the bottom of the bed board 2, and the lower teflon slide block 93 is fixed on the slide block fixing frame 91. The cross beam 13 is slidably engaged between an upper teflon slider 92 and a lower teflon slider 93. Because the surfaces of the upper teflon slide block 92 and the lower teflon slide block 93 are smooth, the friction force between the upper teflon slide block 92 and the cross beam 13 is small, so that the bed board 2 can slide relative to the cross beam 13. The support 1 further comprises a longitudinal bar 16 parallel to and above the longitudinal support 111, said longitudinal bar 16 being fastened at both ends to the liftable column 12. At least one slide drive mechanism 10 (two shown) is mounted to the side rail 16. Specifically, the slide driving mechanism 10 includes an electric push rod 101, and the tip of the electric push rod 101 is fixedly connected to the bottom of the bed plate 2 between the belt conveying units 3. The structure ensures that the bed board can extend out of the lifting support frame 1, and can be overlapped on a wider sickbed.

As shown in fig. 7, the lifting column 12 may include a motor 121, a motorized lift rod 122, an inner hollow column 123, and an outer hollow column 124. The inner hollow strut 123 and the outer hollow strut 124 are rectangular struts. The outer hollow strut 124 is fixedly mounted on the base 11 (specifically, the longitudinal support 111), the electric lifting rod 122 is mounted in the inner hollow strut 123, and the inner hollow strut 123 is movably sleeved in the outer hollow strut 124 and fixedly connected with the end of the electric lifting rod 122. The motor 121 is mounted on the base 11 (specifically, the longitudinal bracket 111), is in driving connection with the electric lifting rod 122, and the cross beam 13 is fixed to the top end of the inner hollow pillar 123. The motor 121 drives the electric lifting 122 to lift, so that the inner hollow strut 123 moves up and down relative to the outer hollow strut 124, and further drives the cross beam 13 and the bed board supported on the cross beam 13 to lift. The lifting support 12 of this embodiment is simple, compact and reliable in construction.

In this embodiment, the cross members 13 are provided with guard plates 14, i.e. the guard plates 14 are located at two ends of the bed plate 2, so as to protect the head and feet of the patient. Preferably, the guard plate 14 is formed integrally with the cross beam 13, as shown in fig. 7.

In this embodiment, the hospital bed comprises a movable rail 17, which movable rail 17 is detachably mounted on the non-working side of the bed deck 2. Of course, the movable rail 17 may also be provided on the working side. Specifically, the bed board 2 or the guard board 14 is provided with a jack, the movable guard rail 17 is provided with a corresponding inserting shaft, the movable guard rail 17 is inserted into the jack through the inserting shaft to be installed on the medical care bed, and the inserting shaft is pulled out of the jack during disassembly, so that the operation is faster.

The operation of the hospital bed of the present invention will now be briefly described with reference to fig. 1-8. The transfer of a patient in a hospital bed to a hospital bed is described here as an example. Firstly, a patient-carrying medical bed is moved towards a sickbed (which can be manual or automatic), the working side faces the sickbed, at the moment, the auxiliary supporting frame 8 is lowered, and the liftable support column 12 lifts the bed board 2 to the highest; when the first position sensor at the bottom of the bed plate 2 detects a signal, the liftable support column 12 slowly descends the bed plate 2 until the micro switch is stopped when the micro switch is operated, and when the second position sensor at the bottom of the bed plate 2 detects a signal, the movement to the sickbed is stopped. The liftable structure 51 is then lowered to raise the non-working side, tilting the bed surface, and then the conveyor belt assembly is activated (forward rotation) to transfer the patient thereon to the patient bed. Because the bed surface is inclined, no height difference exists between the bed plate 2 and the sickbed, and patients do not feel uncomfortable. When the patient is completely transferred onto the sickbed, the conveyor belt assembly is stopped, the liftable support column 12 lifts the bed plate 2 up and outwards, and when the patient leaves the sickbed, the auxiliary support frame 8 can be lifted to support the bed plate in an auxiliary manner. The process of transferring the patient from the sickbed to the hospital bed 1 is similar to the process, firstly, the empty hospital bed moves towards the sickbed where the patient is located (can be manual or automatic), the working side faces the sickbed, at the moment, the auxiliary supporting frame 8 descends, and the liftable support column 12 lifts the bed board 2 to the highest; when the first position sensor at the bottom of the bed plate 2 detects signals, the liftable support column 12 slowly descends the bed plate 2 until the micro switch stops when acting, then the liftable structure 51 descends to lift the non-working side to incline the bed surface, then the bed plate 2 moves towards a sickbed, the bed plate 2 is inserted under the patient body, and when the second position sensor at the bottom of the bed plate 2 detects signals, the movement towards the sickbed is stopped; the conveyor belt assembly is then activated (reversed) to transfer the patient to the patient support. After the patient has been completely transferred to the patient bed, the conveyor belt assembly is stopped and the liftable column 12 then lifts the bed plate 2 off the patient bed and outwards via the drive wheels 52. The transfer process can be operated by a remote controller or can be automatically performed according to a preset program.

The invention also provides a method for transferring a patient by means of the above-mentioned hospital bed, which method comprises the following steps: moving the medical bed to be parallel to the sickbed or the operation bed; raising the bed plate of the medical bed beyond the bed surface of the sickbed or the operating bed; continuously moving the medical bed to a first position to the sickbed or the operating bed, wherein the working side of the medical bed is just overlapped with the sickbed or the operating bed; lowering the bed plate of the medical bed to be in contact with the bed surface of the sickbed or the operating bed; lifting the medical bed away from the non-working side of the sickbed or the operating bed so that the bed board of the medical bed is inclined at a certain angle; continuously moving the medical bed to a sickbed or an operating bed to a second position, wherein the working side of the bed plate of the medical bed is positioned in the middle of the sickbed or the operating bed; the belt is transversely moved to transfer the patient from the medical bed to the sickbed or the operating bed or from the sickbed or the operating bed to the medical bed; stopping the belt from moving transversely; lowering the non-working side of the medical bed to enable the bed board of the medical bed to be in a horizontal state; lifting the bed plate of the medical bed away from the bed surface of the sickbed or the operating bed; the hospital bed is moved away from the bed or operating table.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A medical care bed, characterized by comprising a liftable support frame, a bed plate and a conveying belt assembly, wherein one of two sides of the bed plate is called a working side, the other side is called a non-working side, the bed plate is supported on the liftable support frame, a liftable mechanism is arranged on one side of the non-working side of the liftable support frame and is used for downwards inclining the bed plate towards the working side, a belt anti-pressing plate which is parallel to and spaced from the bed plate is arranged at the bottom of one side of the working side of the bed plate, the conveying belt assembly is arranged on the bed plate and comprises at least one belt conveying unit, and a belt of the belt conveying unit passes through a gap between the belt anti-pressing plate and the bed plate, surrounds the bed plate and can transversely move relative to the bed plate;

The liftable support frame comprises a base, two liftable support posts and two cross beams; the base consists of a longitudinal support and two transverse supports, and one end of each transverse support is sleeved on the corresponding longitudinal support; the liftable support is arranged on the longitudinal support, one end of the cross beam is fixedly arranged on the liftable support so as to be lifted, and the other end of the cross beam is suspended; the bed board is supported on the cross beam;

an auxiliary support frame for auxiliary support of the bed board is arranged on the transverse support; the top end of the auxiliary supporting frame is provided with a rotatable supporting block, and the top surface of the supporting block is a cambered surface so as to ensure that the bed board or the belt conveying unit is not damaged; the auxiliary supporting frame can ascend or descend relative to the base;

the auxiliary support frame comprises a support frame and an electric push rod which is in driving connection with the support frame, the support frame is driven by the electric push rod, and the support part at the upper end of the support frame is in a state of supporting the bed board, or the support part at the upper end of the support frame is separated from the bed board;

when the medical care bed is in bearing or not in use, the supporting frame is lifted to assist the bed plate to support so as to further improve the bearing capacity of the bed plate;

The horizontal support is equipped with a rectangle opening, and the lower extreme of support frame is rotatably installed in the opening, and electric putter fixed mounting is in the opening, and its push rod end is articulated with the support frame, and electric putter is flexible, drives the support frame and rotates, realizes promptly that the folding of support frame lifts up and descends, and the support frame can accomodate at the rectangle opening owing to folding, descend to realize reducing space occupation.

2. The nursing bed as defined in claim 1 wherein a drive wheel for driving the nursing bed to walk is also mounted at the bottom of the liftable support frame.

3. The patient support of claim 1, wherein the bed plate and the liftable support frame form a U-shaped structure that is open toward one side, and wherein the open side of the U-shaped structure is referred to as the working side and the other side is referred to as the non-working side.

4. A hospital bed according to claim 3, wherein the conveyor belt assembly comprises three belt conveyor units arranged evenly spaced apart on the bed deck.

5. The patient support of claim 4, wherein the bed plate is slidably supported on the liftable support frame, and the liftable support frame further comprises a longitudinal bar parallel to and above the longitudinal frame, the longitudinal bar being fixed at both ends to the liftable support column, and a slide driving mechanism is mounted on the longitudinal bar, and an end of the slide driving mechanism is in driving connection with the bed plate portion between the belt conveyor units.

6. The hospital bed of claim 1, wherein the belt pressure-proof plate is provided with a micro switch for detecting whether the bed plate is abutted on the supporting surface of the patient and outputting a detection switch signal.

7. The patient support of claim 1, wherein the patient support further has first and second position sensors mounted thereon, the first and second position sensors being located on the working side and the non-working side, respectively.

8. The patient support of claim 1, further comprising an electric cabinet mounted on the liftable support frame for controlling the movements of the liftable support frame and the belt conveyor unit.

9. A method of transferring a patient with a hospital bed, the hospital bed comprising a liftable support frame, a bed board supported on the liftable support frame, a movable auxiliary support frame and a belt mounted on the bed board for lateral movement, the method comprising the steps of: moving the medical bed to be parallel to a supporting surface where a patient is positioned, and defining one side of the medical bed, which is close to the supporting surface, as a working side and the other side, which is far away from the medical bed, as a non-working side; raising the bed plate of the medical bed beyond the support surface; continuously moving the nursing bed towards the supporting surface to a first position, wherein the working side of the nursing bed is just overlapped with the supporting surface; lowering the bed plate of the medical bed to be in contact with the supporting surface; raising the non-working side of the medical bed to incline the bed board of the medical bed by a certain angle; continuously moving the medical bed to a second position towards the supporting surface, wherein the working side of the bed plate of the medical bed is positioned in the middle of the supporting surface; moving the belt laterally to transfer the patient from the patient support to the support surface or from the support surface to the patient support; stopping the belt from moving transversely; lowering the non-working side of the medical bed to enable the bed board of the medical bed to be in a horizontal state; lifting the bed plate of the medical bed away from the supporting surface; moving the patient support away from the support surface;

When the medical care bed is in bearing or not in use, the supporting frame of the auxiliary supporting frame is lifted to support the bed plate in an auxiliary way so as to further improve the bearing capacity of the bed plate;

The liftable support frame is provided with a rectangular opening, and after the support frame of the auxiliary support frame is folded and lowered, the auxiliary support frame is stored in the rectangular opening, so that space occupation is reduced.