DE3918446A1 - Lifting and transporting hospital bed - involves two parallel lifting frames with rails to receive bed - Google Patents

Abstract

The device is used for lifting and transporting a hospital bed and has a U-shaped frame (14) with each arm (16) of the U being supported on castors (68). Each arm (16) of the frame supports a vertically sliding frame (24) which has a rail (42) attached to its lower edge. These rails are spaced to match the positions of the legs and castors of the bed (12) which can be pushed sideways onto the rails. The bed can then be lifted to the same height as the operating table so that the transfer of the patient from the bed to the table is facilitated. USE - Transport of patients to the operating table.

Description

The invention relates to a lifting trolley for Hospital beds as described in claim 1.

In hospitals there is often a need to to transfer seriously ill or frail patients. This happens as part of an investigation or ope rations, the patient even has to follow up twice subject each other to this procedure, namely once from the bedside to the examination or operations table and then vice versa. He still comes difficult to add that every time a bed is changed Height level to be overcome is because of the sick beds  usually have a height of 60 cm while the height of surgery or sub search tables, e.g. for X-ray machines, a me ter is.

So far, the work has been carried out by the nursing staff leads by three to depending on the patient's weight five nurses were required to lift it and to the other lying surface while overcoming the Elevate levels. If this happens several times on Day happens, repositioning provides for the nursing personnel represents a significant physical strain. Because the nursing staff lift the weight must keep the patient in a bent-over state, leads to the permanent incorrect posture of the spine many cases of degenerative spinal disorders These diseases statistically form the skin most common cause of sick leave and prematurely identified submitted pension applications to nursing staff.

These are also from a hygienic point of view Work to criticize as the staff order keep your balance at all when lifting can, in the absence of other suitable support surfaces sometimes in the patient's bed or on the opera  tion or examination table with the knees or Had to support feet. Furthermore, it is with the like bedding required that the patient the nurse attacking his upper body around the Neck grabs and his own head without support holds. In patients suffering from spinal disorders suffer, this can cause considerable pain.

Although this condition has been known for a long time and ne ben health damage to the nursing staff such as inconvenience to the patient Social security institutions and ultimately financial losses occur to the general public, no effective remedy has yet been found.

While it is known to put the patient on a flat Roll the mat, strap it on and the Then mat together with the patient over a crooked one Level draw, however this solution is considered to be considered disadvantageous. So is the contact area very unstable for the inclined plane and it exists the risk of this when pulling the patient through the friction is taken away and hers on one side Stop losing.  

Furthermore, the height difference must still be about be sore, what corresponding efforts of the Nursing staff required. It is particularly disadvantageous for the patient that he has to be strapped, so that he is inclined on the leaning of the mat Level does not roll down. Since the patient is in such to instinctively support a situation through which Seat belts are prevented from doing so, however The process triggers severe anxiety for the genes are a hindrance.

The invention has for its object the advance to create conditions that the transfer of patients Both easier for the nursing staff, because less strenuous and especially gentle on the spine, is also more comfortable for the patient.

This object is achieved in the lifting Transport trolley as described in claim 1, solved.

The patient can be transported together with the lifting trolley bed for examination or to the operating room  be rolled and there to the required height be lifted, which is a horizontal transfer possible.

This can then be done in a manner known per se, by first rolling the patient to the side, put a flat mat on the lying surface and the patient is rolled back so that he is on the Mat comes to lie. Then he can without to be strapped because there is no more inclined plane is bridged by the nursing staff to each other lying surface are pulled over. The care personnel then only needs the patient pull horizontally on the mat, but none Overcome height difference more.

The configuration of the hub transport according to the invention car also makes it possible to put the bed in in the same way as before was. Since there is practically no protruding area che gives the bed with the patient on the same, sometimes very scarce in width transport sized corridors and corridors. Also the Passage through doors is through the hub transport dare not additionally impaired. In the end  can still be adjusted to the dimensions Use standard lifts.

The design of the lifting trolley distinguishes between two alternatives. Can once the two outer legs in their length the width correspond to the bed and the connection kel in length the length of the bed. In the two outer legs correspond to another case kel in their length the length of the bed and the Connecting leg in its length the width of the Sickbed.

In the first alternative, the Hub Transportwa approached the bedside from the side in the second alternative, however, from the head or foot end. Both raising and lowering as the transport of the sick beds is also with both Refinements possible in the same way. In practice The second alternative, however, could be used tive be a little more advantageous since the transport the castors must be locked in place usually only two roles on the feet of the bedside is possible and the locking devices here are more easily accessible. The others, not locked  The roles of the Transport car in the second alternative also better protected against lateral movements. Finally bie the second alternative also applies to transport Legroom for the nursing staff.

In a practical embodiment, the outer Leg of the lifting dolly such it was said that they mostly provided roles Feet of the hospital bed when pushed in from the outside spread.

This gives the lifting trolley a larger one Wheelbase, so that the tipping stability compared to the usual union bed construction is improved. This tilt stability can be a Play role than that in hospital buildings sometimes due to different height levels of the corridors ramps have to be overcome. In addition, the stabilizer Action against tipping over is required when the patient is relocated and while sliding over the bed edge an extremely one-sided load on the lifting Dolly acts.

Also in the design of the receiving devices  one can distinguish between two alternatives. In one case, the cradles are complete the chassis can be raised, otherwise they are ge can be lifted separately from the chassis.

Basically, both configurations are able to to solve the task. However, it is useful only the cradles separate from the chassis liftable, because then the weight of the chassis does not need to be lifted off and therefore the Stability and energy consumption of the drive device can be reduced.

In turn, the receiving devices themselves distinguish two alternatives. The one exception staltung provides that the receiving devices as claws attacking the frame of the bed or Backing plates are formed, the other alternative is that the receptacles as on lifts for the castor 's feet of the Sick bed are trained.

The design with the support plates has the front part that the lifting dolly also for the sick beds can be used that have no roles themselves have. Such configurations are, however, sel  Apart from that, there are also advantages for hospital beds with casters, because of the attack no locking on the bedside of the bedside roles made more are needed.

According to a further development, the claws or Support plate on swivel and / or length adjustable Support arms may be attached.

This makes it possible to have certain lengths or widths tolerances of the standardized sick beds equalize. There is also the option of Ab to find bases on the bedside frame, if the space below the bed is already using adjustment devices or other aids is occupied.

The design with the ramps allows a particularly quick admission of the sickbed, since this is only shifted laterally or longitudinally to who that needs. On those arranged under the bed Adjusting devices or other aids then not being respected.  

With a practical configuration of the admission Directions with ramps include the ramps stage a ride that can be lowered to the ground gutter a width that is within the tolerance range of the feet distance corresponds to usual hospital beds. The driving gutter is on its side facing the moving frame attached to a support member.

This results in a sufficiently wide drive area che for the roles of the bedside, so that too Hospital beds with feet of different widths that can be transported safely. Furthermore there is the advantage that with wide fairways not care must be taken in which one location of the bed on the hub transport car is rolled. The supporting parts on both sides the fairway provide lateral guidance when Driving onto the fairway.

A further training provides that the length of the Ver binding leg of the chassis is changeable.

This allows even greater tolerances in the Width of the foot distance from the patient's bed is equal chen than possible by the width of the fairway  is.

The lifting devices can be raised and lowered principally mechanically by a drive in the form of an egg ner threaded spindle, a chain drive or hydraulically by a hydraulic cylinder and a mechanically or electrically powered drive unit respectively.

Of these possible configurations, the hydrau The most expedient variant since one type drive unit from various hydraulic cylinders can be operated. Besides, one is very the same moderate low-noise lifting movement possible.

An advantageous development provides that the Drive at one between the admission direction and the driving frame arranged articulated re attacks.

Such a pair of scissors enables a stable parallel le Location of the cradle relative to the Fahrrah during the entire lifting movement. Because the stability is determined by the articulated scissors, the drive needs not to accept any lateral managers.  

The articulated scissors are in a practical embodiment with one end of their thighs on the drive frame or articulated on the receiving device and with the opposite end horizontally along movable on the cradle or on the trolley led. The drive engages on the common joint the articulated scissors. With this constructive Ausge design of the joint scissors will be the receiving device Move the device vertically during the lifting movement. The attacking the joint of the scissors The drive has a shorter stroke than the mount device back, which is particularly important with regard to a short overall length of hydraulic cylinders is advisable is.

A further development provides that the drive on each the leg of the chassis a hydraulic cylinder owns and operated these hydraulic cylinders synchronously will.

As a result, the weight of the bed is on supported at the ends and by the synchronous hub smooth parallel movement of the Scored sick bed.  

The drive unit expediently comprises a hydraulic valve lik pump, an electric motor, a battery and a control section.

This makes the lifting trolley independent of electrical supply network can be operated, so can can also be used outdoors when patients e.g. from an ambulance Stretcher to be transferred to a hospital bed.

The control part is preferably designed such that it can be arranged on the chassis or from it is deductible.

This will e.g. then easier to use, if the height of the bed has to be changed, the nurse to care for the patient himself but in a different position than the one on the hub transport the control unit attached.

A useful training is that the control part is designed so that lifting the sickbed for transportation to a transport stroke of about 3 cm is limited.  

This is a security measure to ver prevent the sickbed from already during the Transport is raised to a greater height and thus when driving through inclined areas, e.g. Ramps or curbs through the high Focus becomes uncertain.

In a practical embodiment of the hub transport car, all wheels of the chassis are designed so that they can be blocked together when changing beds.

This makes it easier to prepare for repositioning because not all four wheels can be blocked individually must and it also contributes to the fact that Instabili by failing to block individual wheels can arise.

Further developments and advantageous refinements of the Lifting trolley according to the invention result from the claims, the further description and the drawing tion that illustrates exemplary embodiments.

The drawing shows:

Fig. 1 is a perspective view of a hub transport vehicle in a first embodiment,

Fig. 2 is a perspective view of a hub transport carriage in a second embodiment,

Fig. 3 is a plan view of a lifting trolley according to the first embodiment, and

Fig. 4 is a perspective view of a receiving device in a further embodiment than that in Figs. 1 and 2 Darge presented.

The shown in Fig. 1, designated as a whole with 10 lifting trolley comprises a U-shaped driving frame 14 , which in turn has two outer legs 16 and 18 and a connecting leg 28 . On the two outer legs 16 and 18 , lifting and lowering receptacles 24 and 26 are arranged, which serve to raise a patient bed 12 .

As the drawing illustrates, the envelope de of the traveling frame 14 has approximately the same dimensions as the base of the bed 12 . As a result, the patient bed 12 can be transported together with the lifting trolley 10 in the same way via corridors, through doors and in elevators, as was previously possible with the patient bed 12 alone.

In the variant shown here, the two outer legs 16 and 18 have a length that corresponds to the width of the bed 12 and the connec tion leg 28 has a length that corresponds to the length of the bed 12 .

Another variant is shown in FIG . The here also designated 14 U-shaped Fahrrah men consists of the two outer legs 20 and 22 and the connecting leg 30th The two outer legs 20 and 22 have a length that corresponds to the length of the patient bed 12 and the connecting leg 30 a length that corresponds to the width of the patient bed 12 .

Accordingly, the bed in the embodiment of the lifting trolley according to FIG. 1 can be moved from the side onto the receiving devices 24 and 26 , while in the embodiment according to FIG. 2 this is done with the head or foot end.

Both in the embodiment according to FIG. 1 and in accordance with FIG. 2, the outer legs 16 and 18 or 20 and 22 have such a mutual distance that they overlap the feet 34 of the crane kenbettes 12 provided with rollers 32 on the outside. As a result, the wheels 68 arranged on the traveling frame 14 can also be arranged in wide lanes, so that the stability of the lifting transport carriage 10 remains guaranteed even in an inclined position.

The receiving devices 24 and 26 can be raised separately from the rest of the traveling frame 14 . They are designed as driving platforms 40 , on which the feet 34 of the sickbed 12 provided with rollers 32 are pushed up and stay there during transport. The drive-on platforms 40 comprise a channel 42 which can be lowered from the floor and a support part 44 which is located on the side facing the driving frame 14 and to which the channel 42 is fastened.

The channels 42 have a relatively large width, which is dimensioned such that the tolerance range of the foot spacing of conventional hospital beds 12 can be compensated for. In addition, pushing up the hospital beds is made easier, since it is not necessary to pay close attention to the position of the feet 34 with the rollers 32 when the bed 12 is started to be pushed onto the access platforms 40 .

If it is necessary to overcome a particularly high tolerance range of the foot spacing of the patient beds 12 , and this is not possible over the width of the driving channels 42 for reasons of stability, the length of the connecting leg 28 or 30 of the driving frame 14 can also be made variable by this For example, telescoping into or out of each other.

While the devices shown in FIGS . 1 and 2 accommodate the sickbed on the rollers 32 , another embodiment of the receiving devices is shown in FIG. 4. In this version, support plates 36 are provided on pivotable and longitudinally adjustable support arms 38 which accommodate the bed 12 on its frame 70 .

In this case, the pivoting and longitudinal adjustment availability of the support arms 38 allows the user to select suitable points of attack on the frame 70 , so that 12 aids attached below the bed are not damaged when lifting. In addition, the tolerance ranges of frames 70 of different widths of patient beds 12 can also be compensated for.

The receptacles 24 and 26 are connected to the driving frame or the outer legs 16 and 18 or 20 and 22 by articulated scissors 52 on each of the legs. Each articulated scissors 52 consists of crossed legs 58 and 60 , one end 54 of the leg 60 being articulated on the moving frame 14 and one end 56 of the leg 58 on the receiving device 24 and 26, respectively. The other, opposite ends 62 and 64 are horizontally longitudinally guided on the receiving device 24 and 26 and on the traveling frame 14 .

The articulated scissors 52 in this form produce a parallel alignment between the receiving device 24 or 26 and the travel frame 14 . The stroke of the receiving device 24 or 26 can be brought about by changing the angle at which the legs 58 and 60 of the articulated scissors 52 are located.

Since the change in the angle of the legs 58 and 60 is most easily achieved by raising or lowering the joint joint 66 , a drive 46 engages this joint joint 66 . The stroke distance is greater than the distance traveled by the common joint 66 . A hydraulic cylinder 48 with an electrically powered drive unit 50 is therefore particularly well suited as the drive 46 . A further hydraulic cylinder 48 , which is powered by the same drive unit 50 , is also not visible on the opposite side of the lifting trolley 10 . The hydraulic cylinders 48 are operated so that they both perform a synchronous Hubbe movement.

The drive unit indicated here at 50 in FIG. 1 comprises a hydraulic pump, an electric motor and a battery. In addition, a control part not shown here is also provided, with which the lifting movement can be controlled by the nursing staff and which is expediently optionally arranged in a stationary manner on the traveling frame or can be deducted therefrom.

A safety circuit can also advantageously be installed in the control unit, which limits the transport stroke to approximately 3 cm and only releases a further lifting movement when the lifting transport vehicle with the patient bed 12 and the patient has reached the destination.

The wheels 68 arranged on the travel frame 14 are provided with parking brakes which can be blocked together via a linkage or a Bowden cable arrangement.

FIG. 3 finally shows a top view of the lifting trolley 10 in the embodiment according to FIG. 1. The U-shaped design of the traveling frame 14 with its two outer legs 16 and 18 and the connecting leg 28 becomes clear here. In addition, the two channels 42 can be seen on which the patient's bed 12 can be rolled up comfortably.

For the user, i.e. hospitals, retirement homes the lifting trolley compared to height-adjustable Sick beds have the advantage of being relatively simple cheap hospital beds continue to be maintained can. Because not all patients were transferred at the same time have to be achieved with significantly less lifting Dolly, as there are sick beds.  

If a patient is now to be transferred, depending on the version of the lifting trolley, for example in the version shown in FIG. 1, the lifting trolley 10 is moved laterally next to the patient bed 12 . After the receiving devices have been lowered so far that the fairway is on the floor, the patient bed 12 is moved laterally so that its rollers 32 come to rest on the fairway 42 . After the rollers 32 are locked, the receiving devices 24 and 26 are raised slightly by means of the drive 46 . This lifting is expediently limited to a transport stroke of 3 cm, so that there is sufficient ground clearance between the channels 42 and the ground during transport.

The lifting trolley 10 is then moved to the destination next to the other lying surface, for example the X-ray table or the operating table, and the wheels 68 are blocked. Now the bed 12 is raised by means of the receiving devices 24 and 26 via the drive 46 until the bed surface of the bed 12 has the same level as the other bed surface, for example that of the operating table.

In this position, the patient can now be dragged horizontally onto the other lying surface on a mat on which he is rolled. When transferring from the examination or operating table to the patient's bed 12 , the operations are carried out accordingly in reverse.

Since the lifting trolley 10 is practically only required during the transport and the transfer, it can be used for the rest of the time, that is to say, for example, during the operation or the examination, to transport patient beds with patients.

Claims (19)

1. lifting trolley ( 10 ) for sick beds ( 12 ), which comprises a U-shaped traveling frame ( 14 ) in plan view, on the two outer legs ( 16 , 18 ; 20 , 22 ) lifting and lowering receiving devices ( 24 , 26 ) are arranged for the sickbed ( 12 ), the envelope of the traveling frame ( 14 ) having approximately the same dimensions as the base of the crane kenbettes ( 12 ). 2. lifting trolley ( 10 ) according to claim 1, characterized in that the two outer legs ( 16 , 18 ) correspond in length to the width of the sick bed ( 12 ) and the connecting leg ( 28 ) in its length the length of Sick bed ( 12 ) corresponds. 3. lifting trolley ( 10 ) according to claim 1, characterized in that the two outer legs ( 20 , 22 ) in length the length of the sick bed ( 12 ) and the connecting leg ( 30 ) in its length the width of the bed ( 12 ) speaks accordingly. 4. lifting trolley ( 10 ) according to one or more of claims 1-3, characterized in that the outer legs ( 16 , 18 ; 20 , 22 ) have a sol chen distance that they - mostly with rollers ( 32 ) provided - overlap the feet ( 34 ) of the patient bed ( 12 ) on the outside when pushed in. 5. lifting trolley ( 10 ) according to one or more of claims 1-4, characterized in that the receiving devices ( 24 , 26 ) together with the traveling frame ( 14 ) can be raised. 6. lifting trolley ( 10 ) according to one or more of claims 1-4, characterized in that the receiving devices ( 24 , 26 ) can be raised separately from the traveling frame ( 14 ). 7. lifting trolley ( 10 ) according to one or more of claims 1-6, characterized in that the receiving devices ( 24 , 26 ) as claws or support plates ( 36 ) engaging on the frame of the bed ( 12 ) are formed. 8. lifting trolley ( 10 ) according to claim 7, characterized in that the claws or support plates ( 36 ) on pivotally and / or longitudinally adjustable support arms ( 38 ) are attached. 9. lifting trolley ( 10 ) according to one or more of claims 1-6, characterized in that the receiving devices ( 24 , 26 ) as a ramp ( 40 ) for the rollers ( 32 ) provided feet ( 34 ) of the patient bed ( 12 ) are formed. 10. lifting trolley ( 10 ) according to claim 9, characterized in that each of the access platforms ( 40 ) comprises a lowerable to the floor fairway ( 42 ) having a width which corresponds to the tolerance range of the foot spacing of conventional hospital beds ( 12 ) and that the fairway ( 42 ) on its side facing the moving frame ( 14 ) on a supporting part ( 44 ) is fastened. 11. lifting trolley ( 10 ) according to one or more of claims 1-10, characterized in that the length of the connecting leg ( 28 ; 30 ) of the traveling frame ( 14 ) is variable. 12. Lifting trolley ( 10 ) according to one or more of claims 1-11, characterized in that the lifting and lowering of the receiving devices ( 24 , 26 ) mechanically by a drive ( 46 ) in the form of a threaded spindle, a chain drive or hy drastically done by a hydraulic cylinder ( 48 ) and a mechanically or electrically powered drive unit ( 50 ). 13. Lifting trolley ( 10 ) according to claim 12, characterized in that the drive ( 46 ) engages in each case on a between the receiving device ( 24 , 26 ) and the travel frame ( 14 ) arranged scissors ( 52 ). 14. Lifting trolley ( 10 ) according to claim 13, characterized in that the articulated scissors ( 52 ) with one end ( 54 , 56 ) of their legs ( 58 , 60 ) each on the traveling frame ( 14 ) or on the receiving device ( 24 , 26 ) articulated and with the opposite end ( 62 , 64 ) horizontally longitudinally on the receiving device ( 24 , 26 ) or on the Fahrrah men ( 14 ) and that the drive ( 46 ) in the common joint ( 66 ) of the Articulated scissors ( 52 ) engages. 15. lifting trolley ( 10 ) according to claim 13 or 14, characterized in that the drive ( 46 ) on each leg ( 16 , 18 ; 20 , 22 ) of the driving frame ( 14 ) has a hydraulic cylinder ( 48 ), and this Hydraulic cylinders ( 48 ) are operated synchronously. 16. lifting trolley ( 10 ) according to claim 15, characterized in that the drive unit ( 50 ) comprises a hydraulic pump, an electric motor, a battery and a control part. 17. Lifting trolley ( 10 ) according to claim 16, characterized in that the control part as a statio nary on the moving frame ( 14 ) arrange or is designed to be removable. 18 lifting trolley ( 10 ) according to claim 16 or 17, characterized in that the control part is designed so that the lifting of the crane kenbettes ( 12 ) for transport is limited to a transport hub of about 3 cm. 19. Lifting trolley ( 10 ) according to one or more of claims 1-18, characterized in that all the wheels ( 68 ) of the traveling frame ( 14 ) can be blocked together in order to bed.