Beds – With means for relocating an invalid – Rotatable platform type
Patent
1997-09-12
1999-10-19
Trettel, Michael F.
Beds
With means for relocating an invalid
Rotatable platform type
5 811C, 5 811HS, 5626, 5625, A61G 100, A61G 1013
Patent
active
059667540
DESCRIPTION:
BRIEF SUMMARY
This invention relates to a sliding device according to the preamble of Patent claim 1.
The transfer of a person from a bed to another flat surface is frequently required. As a rule, the person to be transferred is a handicapped or ill person or someone not capable of walking. The mentioned transfer of persons is most often carried out in a hospital, a nursing ward or in the residence of the patient. In hospitals up to six nurses are required in order to transfer one patient from a hospital bed to a surgery table. It is not unusual for nurses to injure themselves in the process of transferring patients.
In order to facilitate the transport of a patient from a first location to a second location numerous transfer devices have already been suggested.
A transporting mat of low weight is known for example for transporting patients between a surgery table and a bed, which is designed similarly to a sleeping bag with open ends (U.S. Pat. No. 4,051,565). This transporting mat is provided on the inside with a Teflon coating, while the outside comprises a spongelike foamed material or the like. Due to the smooth inside coating the mat can be shifted easily, i.e. if the mat is grasped, for example on its top side, and pulled, the mat moves similarly to tank tractor treads. Of disadvantage in this mat is however that its shape is not stable and for this reason can readily sink into depressions in the bed or the like.
In another known patient transfer device, a rigid frame is provided with roller cylinders wherein about this frame an endless cloth is wound (U.S. Pat. No. 2,918,681). Compared to the previously described mat, this device differs thereby that the insides of the endless cloth are not disposed such that they are superjacent but rather are disposed on the roller cylinders. This ensures better stability. Apart from the fact that the patient feels the hard roller cylinders in the back if the endless cloth is not sufficiently thick, however, the rigid frame with the roller cylinders is very cost-intensive.
An endless sliding mat is also used in another patient transfer device (U.S. Pat. No. 3,769,642, FIG. 8, Pos. 15). Herein two tension bands are attached on the endless sliding mat, whose width corresponds approximately to the width of the sliding mat. The endless tension band has on its inside a lower coefficient of friction than on its outside; to this extent it corresponds to the already described transporting mat according to U.S. Pat. No. 4,051,565.
A patient transporting device is furthermore known which comprises flexible yet strong and light materials (U.S. Pat. No. 4,700,416). This transporting device comprises a central region and two wing regions which are secured on the central region and which can be folded over. However, the transporting device can only with effort be moved slidingly over a surface.
In another known patient transporting mat the sliding shift is also not possible using low forces (U.S. Pat. No. 4,744,115). This mat comprises substantially two portions which can be folded one over the other.
A sliding device according to the species, which can be produced significantly more cost-effectively than the sliding mat according to U.S. Pat. No. 2,918,689 since it does not include expensive rollers, is known from DE-C-3 806 470. This sliding device also comprises an endless band which is however wrapped about a rigid board, wherein the frictional resistance between the endless band and the rigid board is so low that it can be overcome by an operator pulling on the endless band if a person is located on the endless band.
A further sliding device according to the species, with two portions which can be folded one on top of the other, is known from DE 88 16 024 U1.
Another known patient transfer device comprises an elongated endless band which is enclosed all around and comprises in its interior a sliding medium, for example, a liquid lubricant or air (U.S. Pat. No. 5,005,232=EP-A-0 469 767). But in this device there is also the disadvantage that its spatial stability is insufficient.
Lastly
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Conley Fredrick
Samarit Industries Aktiengesellschaft
Trettel Michael F.
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