SLIDING SHEET OR THE LIKE

Abstract: The invention pertains to a low friction bed sheet or the like for facilitating changing the position of a person or part of a person in prone position. The low friction bed sheet includes at least a low friction surface (4) comprising a material with low friction and adjacent to the low friction surface high friction surfaces (5) comprising materials with high friction. The low friction surface is placed only on the side against the person in bed while the underside against the bed (1) is mainly comprised of at least one high friction surface. The width of the low friction surface (4) is less than the width of the bedding for which the low friction bed sheet is intended. In the transition between the low friction surface (4) and the high friction surface (5) there are transition zones at least lengthwise in the bed which can be perceived by the person in the bed.

Description: Title: Sliding sheet or the like The present invention concerns a low friction bed sheet or the like to facilitate changing the position of a person or part of the person's body in a prone position and including at least a low friction surface (1) made of substantially frictionless material and a bordering high friction surface (2) of high friction material. BACKGROUND OF THE INVENTION It is well known that it can be very difficult for people with physical handicaps of different types to turn over in bed. This increases their suffering considerably. Examples of these types of people are those with permanent of temporary partial paralysis, people with different types of injuries, for example back injuries, people that have recently been operated on, etc. Today there is no good commercial aid to help people with these motor problems turn themselves over in bed. In US patent 3,849,813 a "draw sheet" is described, that is a sheet that is put under a person to help a carer turn the person in bed by pulling the "draw sheet" toward himself/herself. It includes a central inner part of an essentially frictionless material which has been attached to a normal sheet. This has been done to make it possible for the user who lies on the sheet to glide easily while his/her extremities, which are in contact with the normal sheet material, can achieve the change in body position. The problem with the above draw sheet is that no account has been taken of the fact that the person in question can slip out of the bed, as attention has only been paid to assuring the position of the draw sheet's low friction part on the bed through sufficiently long side parts which are tucked in under the mattress. Anoth problem is the proposed material for the low friction part, whi is either easily damaged when wet (for example rayon) or cannot washed at sufficiently high temperatures, at least 70°C (f instance acetate), which is a requirement on bed and texti materials in hospitals. There is another aid known as "Ross Glidmatta" which is sold different sizes. The low friction mat is primarily an aid f carers to help them move or turn a physically handicapped or new operated person in a mild way. The low friction mat is often us in combination with a normal draw sheet. If a physically handicapped person uses the low friction mat abo to help turn himself/herself in bed the low friction mat is clear dangerous, especially when the person is to get into or out of t bed because high friction surfaces are absent. The low friction m is also made of thick padded material which can seem clumsy a warm to lie on. For the above reasons the low friction mat unsuitable for long term use in beds for physically handicapp persons. In SE patent 8405630-8 the slipperiness problem has been observe but the low friction bed sheets that are presented still have su important problems that in practice they cannot be used. In t choice of low friction material for the slippery part only fricti and not washability, comfort or the risk of bedsores has been tak into account (silk or plastic are quite inappropriate). Becau both surfaces of the low friction bed sheet have slippery surface it can easily slip to the side when the patient lies on the bed gets up from it. Other often occurring problems for bedridden persons with physic handicaps or sicknesses are incontinence and the risk of bedsore Modern hospital care, handicap care and elderly care lack complete aid which facilitates position changes in bed in a sa manner from the point of view of accident risk and which at the same time functions as an incontinence protection and reduces the risk of bedsores. THE PURPOSE OF THE INVENTION AND THE SOLUTION OF THE PROBLEM The purpose of the present invention is to provide a low friction bed sheet of the type mentioned in the beginning which facilitates changing the position of a bedridden person, that is turning himself/herself over or changing his/her position in bed and gives the bedridden person an indication of when he/she nears the side of the bed and thus prevents him/her from slipping out of the bed. It should be used in combination with draw sheets and thus simplify and facilitate a carer's moving and turning a patient in bed. It should be made of a material that can be washed at such high temperatures that hospital hygiene requirements can be met, or alternatively it should be made of inexpensive disposable material which can also be used by incontinence patients or those that have difficulties with pressure or bedsores. It can also be used as a pillow case for patients with head, neck or back problems. These problems have been solved by the characteristics given in the patent claims. DESCRIPTION OF THE DRAWINGS In the following the invention will be described in a number of exemplifications with reference to the drawings. Fig.1 shows a perspective of a bed with a low friction bed sheet according to the invention. Fig. 2 shows the low friction bed sheet according to fig.l in a top view. Fig. 3-9 show all variants of the low friction bed sheet in top views. Fig. 10 shows a view analogous to fig.l of a low friction bed sheet with incontinence protection. Fig. 11 shows the combined low friction bed sheet-incontine protection according to fig. 10 in top view. Fig. 12 shows a modification of the low friction bed sh according to fig. 11. Fig. 13 shows a section along the line XIII - XIII in fig. 11. Fig. 14 shows a section through another exemplifications of a friction bed sheet with incontinence protection. Fig. 15 shows a low friction bed sheet with detachable incontine protection in a top view. Fig. 16 shows a section along the line XVI - XVI in fig. 15. Fig. 17 shows a low friction bed sheet consisting of several par Fig. 18 shows a low friction bed sheet with a tape for fixing position in a top view. Fig. 19 shows a pillow case with low friction surface according the invention in perspective. Fig. 20 shows a section through a low friction bed sheet w incontinence protection and pressure relief. Fig. 21-23 show three different ways of using the low friction sheet according to the invention in perspective. DESCRIPTION OF THE EXEMPLIFICATIONS Fig. 1 shows a bed 1 schematically with a low friction bed sh 2 according to the invention in the form of a so-called upper sh placed on top of the bed and whereit hangs free at the sides, illustrated in fig. 1, or where the corners of the sheet are tuc in under for example a mattress 3. The low friction sheet 2 includes a low friction surface 4 flan on two sides by a high friction surface 5. The low friction surf 4, which in this exemplification is a low friction material 4a, been equipped with a high friction surface on its back side, example in the form of a part of a sheet, which low frict material has been sewn with hems 7 together with the high frict surfaces 5, which are also appropriately made of sheet cloth. seams thus form two transition zones in the form of small rai parts that can be sensed by the person in bed and which function as stops minimising the risk of the person sliping out of the bed. Alternatively the said raised parts - the stops - can be made of for example a tape or the like sewn on or otherwise fastened to the low friction bed sheet. The expression "low friction bed sheet" is taken to mean any type of bedding between the mattress and the coverlet on which the person lies, that is, except for the bedspread including also covering sheets, quilt covers covering the whole mattress, pillow cases and other wholly or partially covering cases for support pillows. According to a special variation of the low friction bed sheet the low friction material is much longer than shown in fig. 1, for example 150 cm - 160 cm, and is intended for totally paralysed or nearly totally paralysed persons in need of a low friction surface also under their legs and feet. Use of such an "extended" low friction bed sheet makes it easier for carers to turn and move the patient. Another possibility is to make an "extended" low friction bed sheet by using two low friction bed sheets with low friction material of normal length (about 1 m) and to place them parallel and overlapping on the beds. Fig. 3, 4 and 9 each show a low friction bed sheet schematically where the low friction material has been applied symmetrically on a whole piece of a friction material 5a, for example a sheet cloth. The application can be realised by sewing or other appropriate means, for example using glue, buttons or fastening of the type known as Velcro. A special variant of the low friction bed sheet according to fig. 3 has an number of extra seams 9 in the slide direction of the low friction bed sheet, that is sideways, to better hold the low friction material in place against the material below it. The low friction surface 4 can take any form at all but is appropriately rectangular or hexagonal, as in fig. 9. The low friction material must have at least as much adhesion its underside as a conventional cotton sheet for the low frict bed sheet to maintain its intended position on the bedding. avoid letting the possibly more slippery upper side of the friction material coming into contact with the bedding, for exam at the seams, the hems are on the upper side, that is, they wrong way up. To avoid the risk of slipping the hems can even made in a different way, for example in a zigzag seam or us taping. Paying attention to such details is important concern the upper sheet because it should be possible to use them e without tucking the corners in under the mattress which otherw reduces the risk that the low friction bed sheet change position. These security measures are especially important w draw sheets are used over the low friction bed sheet according fig. 23. The width of the low friction material must be adjusted to width of the bed for which the low friction bed sheet is intend The width can also be adapted to the user so that a heavy, w person has a somewhat wider low friction material than is the c for a thin person. As a guide-line the low friction material sho be 20 - 30 cm narrower (at its widest part when the low frict material is not rectangular) than the bed on which the low frict bed sheet is to be used. Thus, for a bed 90 cm wide a typical friction material width is 50 - 70 cm, optimal being 65 cm. Fo 120 cm wide bed wider friction borders are possible, for exam 30 - 60 cm. For safety it is extremely important that the bed wi for which the low friction bed sheet is intended is clearly mar on the bed sheet (for example using wash proof marking) as well on the packing material when selling it. The length of the low friction material can vary. For the friction bed sheets according to fig 1 and 8 the length essentially the same as the low friction bed sheet's length but the other figures the length of the low friction material is less than the total length of the low friction bed sheet. To a certain extent the length of the low friction material should be adjusted to the height of the user but this is not as critical as in the case of the width. For the user to have optimal freedom of movement in the bed the trunk and bottom should lie on the low friction material while the lower legs should lie wholly on the high friction material. A typical length of the low friction material is 90 cm - 115 cm when it is intended for a grown person. Another typical length, specially adjusted for total paralytics, can be 150 - 160 cm. The textile material of which the low friction bed sheet is made and which can be either natural or synthetic or a combination of both must be washable at bacteria killing temperatures, for example over 70°C, without losing its structure or shrinking. This applies to the low friction material as well as the high friction material and possible other material. Appropriate materials are for the low friction material polyester and for the high friction material a cotton-synthetic mixture containing 0-70% cotton. The high friction material can be woven or knitted tricot, for example terry cloth. Further increased safety when it comes to reducing the risk of slipping out of the bed when using the low friction bed sheet according to the invention can be achieved when the low friction or high friction material's edges are equipped with position fixing fasteners 10 to be fastened to for example the mattress or the bed or to be coupled together under the mattress. The fasteners 10 can be of sewn on tape 11 as shown in fig 18, double sided tape, Velcro or also an elastic along the edges of the bed sheet which hold the low friction bed sheet against the mattress's sides. An alternative way to achieve the said improved safety is to make the high friction material extra wide so that the lengthwise end parts can overlap under the mattress whereby either the said fasteners fix them or the weight of the person in bed prevents the low friction bed sheet from changing positon. The low friction bed sheet 2 also functions very well combination with a normal draw sheet whereby the draw sheet placed conventionally over the low friction bed sheet. The purp is to further facilitate the carers' turning bedridden physica handicapped people lying on the draw sheet. When the carer pu the draw sheet from one side of the bed it slides easily on the friction bed sheet and the person on top is turned without gr effort on the part of the carer (see fig 23). The reason is t the friction between the draw sheet and the low friction sheet considerably less than when a draw sheet is used in conventional manner on top of a normal sheet. Also in t application the risk of accidents is minimised because of the friction bed sheet's side parts with high friction. Instead of using a draw sheet when a patient is to be turned in the low friction bed sheet can be used. For that purpose grip l pieces can be attached to the transition between the low frict surface and the high friction surface or directly on the h friction material. The grip like pieces make it possible for carer to lift up that part of the sheet that is positioned un the patient and roll him/her over to the other side. The grip l pieces (not shown) can be sewn cloth pockets of a strong materi folds sewn into the high friction material, tape or the like wh does not disturb the person in bed and which also fulfils requirements of washability. A special variant of the low friction bed sheet is shown in fig where on its underside the sheet has been equipped with a poc 12 with an opening 13 in some direction made of a material wh at least on its underside has high friction. In the pocket 12, opening of which may be closed using for instance Velcro 14, incontinence layer 15 and/or a pressure relieving layer 16 insertable. The upper side of the pocket consists of a low frict material and its underside of a normal friction sheet materi plastic, plasticised terry cloth or rubberised material or like. The pocket can have variable width but is optimally somewhat wider than the low friction material and can be applied in different alternative manners, for instance sewn on with seams along one, two or three sides or attached with Velcro or with semi- fixing glue material in a corresponding way. Fig 15 and 16 show the case when one edge of the pocket is affixed by a seam in the lengthwise direction and the other edge by a Velcro band 14 while the upper and lower edges are not affixed. In a variant of the low friction bed sheet 2, shown in fig 17, the low friction material 4a is primarily intended for one time use and is applied appropriately on the high friction material using for example some type of semi-fixing material as for instance Velcro or appropriate glue. The parts that are used more than once can be specially made of high friction parts. The material of the high friction parts can be paper, plasticised paper, non woven, paper fiber pulp, fluffy pulp, foam rubber, tape or similar material which is used today for disposable incontinence protection, disposable diapers and tampons. Alternatively the disposable low friction material be shaped to be fastened, for example by gluing, directly on a normal undersheet or otherwise be made so that the low friction material is held in position and stays still due to its own weight or through rubberising its underside or by other means. A variant of the low friction bed sheet in the form of a pillow case or pillow cover is shown in fig 19. In the same way as the low friction bed sheet it is equipped with a low friction surface 4 or a low friction material 4a which is adjusted to the width of the pillow so that it is covered on two or four sides by high friction surfaces 5, for example high friction material 5a. The low friction material can also be applied to a pillow case of high friction material in a way corresponding to that described above in connection with the low friction bed sheet 2. The low friction pillow case is intended for use by physically handicapped where the damage is localised to the head or neck, for instance after w lash accidents, vertebra fractures, skull fractures, etc. W using the low friction pillow case the handicapped person lies wi the back part of the head directly on the pillow case low fricti surface and with the neck against the lower part of the pillow ca which is without low friction material and thus more comfortab in its contact with the neck skin. The low friction pillow case functions also in combination with t main draw sheet whereby it is placed on top of the low fricti pillow case. The purpose is to facilitate the carers' treatment the patient on turning or moving the head. According to a modification of the low friction bed sheet or pill case the low friction surface 4 is woven into a high friction she material by using for instance the Jacquard method or a simil method. The low friction bed sheet is made in one piece simultaneous weaving of warp thread with low friction (for instan polyester) and warp thread with high friction (for example cotto in such a way that a low friction surface 4 which is slippery the sideways direction is placed as a middle piece in the sa position and shape as described above and parts with high fricti are placed on two or four sides of the low friction surface. T transition zones 8 between the low friction and high fricti surfaces and also the side parts can possibly be made by "doub weaving" to make a slip stop edge corresponding to the overlappi hem 7 according to fig 1. A further potential of this producti method is that the transition zones 8 can be made of special hi friction warp thread on the upper or lower side as desired. The different surfaces 4 and 5 of the low friction bed sheet c also be made by coating a cotton sheet, a non-woven sheet or t like with layers with different surface characteristics. Slippe surface layers where a low friction surface is desired and hi friction layers where high friction surfaces are desired can made. A plastic layer of appropriate type, for example P polyurethane or acrylic can possibly be components of an integrated part of the low friction bed sheet which then makes up a single unit fulfilling several functions. Further, the plastic layer can be of the type that "breathes", that is, allows air but not liquid to pass through it. Also absorbing layers woven in the sheet are possible. The different illustrated variants of the low friction bed sheet 2 can advantageously be integrated with incontinence protection 15 and/or pressure relief means 16 or a combination of them. The incontinence protection and/or the pressure relief means are then applied as different layers on the underside of the low friction bed sheet as exemplified i fig 20 which shows a section though such an integrated sheet. It includes a low friction layer 4b with surrounding high friction layer 5a, a liquid transporting layer 18 of for example channel woven synthetic tricot, a pressure relief layer 19 of for example foam rubber, connected rubber rods or wad, a liquid absorbing layer 20 of synthetic towelling, cotton/synthetic towelling, shrank cotton towelling or similar material, a moisture barrier layer 21, made of plastic, thin plastic laminate, towelling coated with plastic or similar material, and a high friction layer 5a of sheeting, towelling, tricot, plastic, rubber or the like. Said different layers are affixed together, for instance through stitches, preferably in the sliding direction of the low friction fabric. The moisture barrier layer 21 and possibly high friction layer 5a need normally only be affixed at the edges (for example with edge tape) to function as water proof barriers. Alternatively the layers 21 and/or 5a can be separate units which in use are placed loosely under the low friction bed sheet or are affixed to the low friction bed sheet in another way, for example with Velcro, double sided tape or the like. Of course it is also possible to combine pieces of disposable material with material that can be used several times. The width of the incontinence protection 15 and/or the pressure relief layer 19 should be adjusted to the bed for which the l friction bed sheet is intended. These layers should be somewh wider than the low friction surface according to fig 11 and 12 a appropriately should have the same width as the bed. The lengt of these layers can vary but should be the same as the length the low friction surface. The different layers can be combined wi the low friction bed sheet's low friction surface 2 and hi friction surfaces 5 in different ways as needs be. In long term a elderly care, where severe incontinence and pressure sore risk a common, the low friction bed sheet can advantageously be us combined with all the layers. The total thickness of the l friction bed sheet with all the layers is about 1-2 cm. The low friction bed sheet can mainly be used in the followi ways: 1. The user lies directly on the low friction bed sheet's l friction surface 4. Reduced friction makes it significantly easi to change position in the bed by oneself, see fig 21. 2. The user lies directly on the low friction bed sheet's l friction surface. The carer pulls or pushes the prone pers effortlessly on the low friction surface with soft motions, see f 22. 3. The side parts of the low friction bed sheet are tuck carefully under the mattress. A normal draw sheet is placed on t of the low friction bed sheet. The significantly reduced fricti helps the carer to turn or move the person in the bed by calmly a softly pulling the draw sheet toward himself/herself, see fig 2 The low friction bed sheet by itself should not be used as a dr sheet and the low friction surface should not be placed downwar toward the bed. Otherwise the low friction surface can end up one of the edges of the bed increasing the risk of an accident.

Claims: CLAIMS 1. Low friction bed sheet or the like for facilitating changing the position of a person or part of a person in prone position including at least a low friction surface (4) consisting of a low friction material and adjacent high friction surfaces (5) with high friction, c h a r a c t e r i z e d i n that the low friction surface (4) is applied only on the side against the person in bed with the backside against the bed mainly consisting of at least one high friction surface (5), that the width of the low friction surface (4) is less than the width of the bedding for which the low friction bed sheet is intended, and that the transitions zones (8), physically perceptible by the person in bed, is placed in the transition between the low friction surface (4) and the high friction surface (5) at least lengthwise in the bed. 2. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction surface material (4) is consisting of polyester or material with similar smooth characteristics and that the high friction surface material (5) is consisting of a cotton-synthetic fiber mixture containing 0-70% cotton or shrunk material with higher cotton content. 3. Low friction bed sheet according to claim 1 or 2, c h a r a c t e r i z e d i n that the low friction bed sheet material, especially the low friction surface (4) and the high friction surface (5), is consisting of a material that is washable at bacteria killing temperatures, for example over 70°C. 4. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction surface (4) and the high friction surfa (5) is consisting of different cloths attached to each oth forming an edge which is a transition zone (8). 5. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction surface (4) is attached to or attachab to or integrated with a high friction sheet of desir dimension. 6. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction surface (4) is so much narrower than t width of the bed that corridors of high friction surfaces ( are formed at least on the top of the long sides of the bed. 7. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction bed sheet (2) or the low friction clo (4a) functioning as a low friction surface (4) being equipp preferably along its lengthwise parts with position fixi fasteners (6), for example fasteners in the form of Velcro (14 buttons, tape, ribbon (11) or the like intended to be fasten to the bed (1), the mattress (3) or under the mattress alternatively to possibly overlapping parts of the low fricti bed sheet under the mattress. 8. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction bed sheet is equipped with or including disposable or reusable incontinence protection (15) and/or pressure relief means (16). 9. Low friction bed sheet according to claim 8, c h a r a c t e r i z e d i n that the incontinence protection (15) and/or the pressure reli means (16) is/are placed so as to cover at least the said low friction surface and that the incontinence protection is intended for placement in a pocket (12) on the backside of the low friction bed sheet against the bed. 10. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that in addition to a low friction layer (4b) comprising the low friction bed sheet's upper side and a surrounding high friction layer (5b), inclusion of at least one liquid transporting layer (18), at least one pressure relieving layer (19), at least one liquid absorbing layer (20) and at least one moisture barrier layer (21) and a high friction layer (5b) comprising the low friction bed sheet's (2) underside. 11. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction cloth (4a) being affixed to high friction cloth (5a) and/or interjacent incontinence protection (15) and/or pressure relief means (16) forming the underside of the low friction bed sheet by a number of extra seams (9) distributed over the low friction surface across the bed. 12. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction layer (4b) and/or the high friction layer is/are composed of a disposable material of paper, non-woven or other similar material which is treated, for example with a layer, to achieve the desired surface structure. 13. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction surface (4) is woven into a high friction sheet cloth using the Jacquard method or a corresponding method. 14. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction bed sheet's upper side is equipped sections of material functioning as grips in the form of cl pockets, folds, tape or the like in the transition between the friction surface and the high friction surface or on the friction surface. AMENDED CLAIMS [received by the International Bureau on 6 February 1996 (06.02.96); original claims 1-3 replaced by new claims 1-3; remaining claims unchanged (4 pages)] 1. Low friction bed sheet or the like for facilitating changing the position of a person or part of a person in prone position including at least a low friction surface (4) consisting of a low friction material and adjacent high friction surfaces (5) with high friction, whereby the low friction surface (4) is applied only on the side against the person in bed with the backside against the bed mainly consisting of at least one high friction surface (5), c h a r a c t e r i z e d i n that the transitions zones (8), physically perceptible by the person in bed, is placed in the transition between the low friction surface (4) and the high friction surface (5) at least lengthwise in the bed, that the width of the low friction surface (4) is so much less than the width of the bedding for which the low friction bed sheet is intended, that said transitions zones giving the person an indication when nearing the side of the bed, and that the low friction surface material (4) is consisting of polyester or material with similar smooth characteristics which stand a temperature of at least 70°C. 2. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the high friction surface material (5) is consisting of a cotton-synthetic fiber mixture containing 0-70% cotton or shrunk material with higher cotton content. 3. Low friction bed sheet according to claim 1 or 2, c h a r a c t e r i z e d i n that the bed sheet material, especially the low friction surface (4) and the high friction surface (5), is consisting of a material that is washable at bacteria killing temperatures, for example over 70°C. 4. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction surface (4) and the high friction surfac (5) is consisting of different cloths attached to each othe forming an edge which is a transition zone (8). 5. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction surface (4) is attached to or attachabl to or integrated with a high friction sheet of desire dimension. 6. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction surface (4) is so much narrower than th width of the bed that corridors of high friction surfaces (5 are formed at least on the top of the long sides of the bed. 7. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction bed sheet (2) or the low friction clot (4a) functioning as a low friction surface (4) being equippe preferably along its lengthwise parts with position fixin fasteners (6), for example fasteners in the form of Velcro (14) buttons, tape, ribbon (11) or the like intended to be fastene to the bed (1), the mattress (3) or under the mattress o alternatively to possibly overlapping parts of the low frictio bed sheet under the mattress. 8. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction bed sheet is equipped with or including disposable or reusable incontinence protection (15) and/or pressure relief means (16). 9. Low friction bed sheet according to claim 8, c h a r a c t e r i z e d i n that the incontinence protection (15) and/or the pressure relie means (16) is/are placed so as to cover at least the said lo friction surface and that the incontinence protection is intended for placement in a pocket (12) on the backside of the low friction bed sheet against the bed. 10. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that in addition to a low friction layer (4b) comprising the low friction bed sheet's upper side and a surrounding high friction layer (5b), inclusion of at least one liquid transporting layer (18), at least one pressure relieving layer (19), at least one liquid absorbing layer (20) and at least one moisture barrier layer (21) and a high friction layer (5b) comprising the low friction bed sheet's (2) underside. 11. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction cloth (4a) being affixed to high friction cloth (5a) and/or interjacent incontinence protection (15) and/or pressure relief means (16) forming the underside of the low friction bed sheet by a number of extra seams (9) distributed over the low friction surface across the bed. 12. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction layer (4b) and/or the high friction layer is/are composed of a disposable material of paper, non-woven or other similar material which is treated, for example with a layer, to achieve the desired surface structure. 13. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction surface (4) is woven into a high friction sheet cloth using the Jacquard method or a corresponding method. 14. Low friction bed sheet according to claim 1, c h a r a c t e r i z e d i n that the low friction bed sheet's upper side is equipped with sections of material functioning as grips in the form of clo pockets, folds, tape or the like in the transition between t low friction surface and the high friction surface or on t high friction surface.

Inventors: LINDBERG EVA, LINDBERG, EVA
Applicants: LINDBERG EVA, LINDBERG, EVA
Application year: 1995
Main classification: A47G9
IPC codes: A47C21, A47G9, A61G7