DE2410420A1 - HOSPITAL CARRIAGE CART - Google Patents

Description

G 49 293 - see below

MATBURN (HOLDINGS) LIMITED, Three Colts Lane, Bethnal Green, LONDON E.2 . (England).

Hospital transport carts

The invention relates to hospital wheeled trolleys.

The object of the invention is to create an effective one and convenient patient conveyor system that moves a patient between a bed or stretcher and an operating table can be transported without the need to lift the patient by required hospital staff is.

A hospital trolley to solve the task at hand is characterized by a main frame with two end members extending from this, between which a bed Cart or the like can be picked up and supported by a pair of horizontal lifting members by a device for raising and lowering the lifting links in relation to the end

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limbs, by a between a horizontal patient support position between the end members and an upright, inoperative position on the main frame movable mattress and by a mattress support that can be engaged in the lifting members to achieve a raising and lowering of the mattress in its patient support position.

The invention is explained in more detail below with reference to the drawings using an exemplary embodiment. Show it:

Figure 1 - a perspective view of a hospital trolley,

FIG. 2 - a representation similar to FIG. 1 in another The position of use of the cart,

Figures 3,

4 and 5 - perspective detailed views each of a part of the cart,

FIG. 6 - a circle diagram to illustrate a gas-hydraulic network as part of the cart and

Figure 7 is a view of a variable flow valve.

In the illustrated embodiment of the invention, a hospital trolley includes a main or chassis frame 1 with two extending therefrom at right angles End links 2. The cart is mounted on wheels or rollers 3. The end links 2 run parallel to each other and are Connected to supports 4 of the frame 1 via articulations or joints 5. The terminal links are in their normal or open Position held by arms 6 which are normally hooked into loops or fishing rings 7 but which can be unhooked around the end links to be able to pivot against the frame 1 into its closed position. This reduces the storage space required for an unused cart.

Is located close to the upper inside of each end member 2, a horizontal support seat 8 and a rail for the mattress. These support supports 8 are arranged parallel to one another.

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arranges and points according to FIG. 5 extending over the supports 4 Extensions 8a.

There is a lifting link at the top of each end link 9. Each of these lifting members 9 is attached to the top of an upright piston Io (Figures 4 and 6), which is in a cylinder is displaceable in the end links 2. The lifting members 9 can each be raised from a lower position or into this Position where it’s just above the horizontal mattress support 8 (Figures 3 and 5). Raising and lowering is done by a piston Io in the cylinders 11 supplied hydraulic pressure in the manner described below. Each lifting element 9 is a separate hydraulic mechanism assigned so that the pistons Io can be raised and lowered independently of each other.

The lifting members 9 are provided with upright pins 12, between which rods 13 of a stretcher 14 (Figure 1) can be removed are arranged.

One consisting of a mattress support 15a and a mattress 15b Bearing 15 is slidably attached to the main frame 1. In the horizontal patient support position, the bearing 15 is of the Parts 8 of the end links are supported and can be raised and lowered on the lifting links 9. When not in use, it depends Bearing 15 in an upright position on the frame 1 (according to FIG. 3). In the event of use, the bearing is in a horizontal position pivoted upwards and then running by means of the support members 8 or bearings. Wheels or rollers 16 shifted laterally. In this case, for example, a garage mechanism can be based on the principle of one that is curved upwards and shifted backwards Door can be used.

At each end, the bearing 15 has an extension frame 17 on which is an extension of the mattress support of the bearing and is usually included in the warehouse, but also $ n Be pulled out longitudinally of the bearing according to Figures 4 and 5

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can to enter into engagement with the lifting members 9, so that the bearing is connected to the lifting members 9 and can be raised by these either at one or both ends. The end links 2 carry attached safety locking members 32 (Figures 3, 4 and 5) with locking extensions or lugs 33 on the extension frame 17 can intervene. The lugs 33 are arranged so that they are not fully extended or enclosed extension frame are detected by the locking members 32, so that the lifting members 9 are not raised can.

With the supports 4 of the main frame 1, hooks, not shown, can be used to accommodate unused stretcher bars be connected.

The pistons Io belong to a gas-hydraulic drive circuit which is controlled by a variable flow valve 18 (FIGS. 6 and 7). The valve 18 can be actuated via a control stick lever 19 (FIGS. 4 and 7). The cylinders 11 are supplied with liquid from two containers 2o, both of which are arranged in an end member 2 according to FIG. 1 or, alternatively, are distributed over both end members. The liquid in cylinders 11 is _{pressurized by gas, preferably CO 2} , from replaceable gas cylinders 21, one of which is removably located on each end member. The gas passes from the bottles 21 via a line network to the containers 2o, the line network having an on-off valve 22, presettable control valves 23, 24 and manually controlled pressure control valves 25. The liquid in the cylinders 11 can also be pressurized with a foot pump 26 which can be operated via a pedal 26a. This also enables the pistons Io to be raised after the gas in the cylinders 21 has been used up.

To operate the drive circuit, the valve 22 is first opened and the push buttons 25a of the valves 25 depressed to supply pressurized gas to the containers 2o. Through this a lifting of the pistons Io is justified. As soon as the pressure on the

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Push buttons 25a is released, the gas flows outward. However, the pistons remain in the network due to check valves in their raised positions. If only one push button 25a is depressed, only one piston Io is also raised. the Pistons are lowered / when liquid can flow from the cylinders 11 back to the containers 2o, which is caused by interference of the stick lever 19 of the variable flow valve 18 can be achieved. The lever 19 acts on a control plate one to depress either or both pressure pins 28 or 29 to actuate the valve members which control the flow of fluid to steer to the containers 2o.

In use, the trolley is positioned at the barrier in the hospital area where it will engage a stretcher trolley 3o (Figure 1) which fits between the end links 2 of the trolley. The lifting members 9 are then raised to grip the stretcher poles 13 and the stretcher 14 supporting the patient. Then that will Bearing 15 moved from the inoperative position in FIG. 1 into the operational patient support position from FIG. the Lifting members 9 are then lowered until the fabric of the stretcher 14 rests on the bearing 15 in the relaxed state. As soon as the operating team is ready, the cart can go to the operating table proceed and the patient be reburied on this.

After treatment, the patient can be put back on the cart to relax on it, for example. The bearing 15 can be provided with safety rails 31 on each side to prevent the patient from rolling off the mattress while resting.

The bearing can be provided with a device which can be raised at both ends to form a backrest.

The trolley according to the invention is in hospital work very useful, as there are often intermediate times in the operating area of a hospital during which patients need to

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have to wait a few minutes between steps, in which they are moved to and from the treatment table. After the operation, you can rest on a comfortable and well-padded Recover the surface of the bearing. By including this warehouse in the trolleys, keeping the patient warm is essential Easier because blankets or other devices can be placed on the mattress before the stretcher is lowered onto it will.

While the inventive trolley in the first place Line for handling patients in treatment or surgery area of a hospital, it can also be used to admit patients to a ward. Here is move the cart to a position where the end links enclose the two ends of the bed.

-Patent claims-

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Claims (7)

Patent claims Mobile hospital trolleys, characterized by a main frame (1) with two extending therefrom End links (2) between which a bed, a trolley or the like can be accommodated and a pair of which are horizontal Lifting members (9) is carried by means (Io) for raising and lowering the lifting members with respect to the end members, by one between a horizontal patient support position movable between the end links and an upright, inoperative position on the main frame. Mattress (1.5, 15b) and a mattress support (15a) that can be engaged in the lifting members to achieve lifting and Lowering the mattress in its patient support position. 2. Cart according to claim 1, characterized in that the end links (2) are connected to the main frame (1) via joints (5) and are thus pivoted about vertical axes into a closed position can be, in which they rest on the main frame (1) and that releasable arms (6) to hold the end links in their ' Open position are attached in which they are all parallel to each other and at right angles to the main frame. 3. Cart according to the preceding claims ^, characterized in that that the end members (2) are each connected to hydraulic pistons (lo) for lifting the lifting members (9) and that each Piston is displaceable by liquid displaceable by means of gas pressure, with a gas container (21) from an end member is supported. 4. Cart according to claim 3, characterized in that a liquid container (2.O) is supplied with a pressurized gas via a separate control valve (23, 24), whereby the piston (lo) is independent can be operated from each other. 5. Cart according to claims 1 or 2, characterized in that the end members (2) are each connected to hydraulic pistons (lo) 409838/0767 are movable by actuating a foot pump (26) to raise the lifting members (9). 6. Cart according to one of claims 3 to 5, characterized by a variable flow valve (18) that can be actuated via a control stick lever (19) for the optional relief of the Fluid pressure to the pistons (lo) to allow lowering of the lifting members (9.). 7. Cart according to one or more of the preceding claims, . characterized in that the mattress support (1.5a) is provided at each end with an extension frame (1.7), which is normally is housed in the mattress (1.5b), which, however, can also be pulled out in the longitudinal direction of the mattress to to be brought into engagement with the adjacent lifting member (9) to raise the mattress. 409838/0767 Blank page